JP6520737B2 - Biological information measuring device, vehicle-mounted device, and biological information measuring system - Google Patents

Description

  The present invention relates to a biological information measuring apparatus for measuring biological information of a user, an on-board unit performing wireless communication with the biological information measuring apparatus, and a biological information measuring system including the biological information measuring apparatus.

  2. Description of the Related Art Conventionally, as a biological information measuring device for measuring biological information of a user, one that is worn on the user's body and used is known. For example, Patent Document 1 discloses a watch-type wearable device worn by a user as a device for acquiring heart rate information of the user using a photoelectric sensor.

JP, 2014-50451, A

  Although the built-in battery is used as a power source in the type of user-mounted biological information measurement device (hereinafter, mounted type), the battery capacity is secured sufficiently because it is limited to the weight and size that do not impair the mounting property. Is difficult. Therefore, there has been a problem that the operation time of the wearable biological information measuring apparatus becomes short.

  The present invention has been made in view of the above-mentioned conventional problems, and its object is to make it possible to reduce the amount of power consumption in a wearable biological information measuring apparatus.

  The above object is achieved by a combination of the features of the independent claims, and the subclaims define further advantageous embodiments of the invention. The reference numerals in parentheses described in the claims indicate the correspondence with the specific means described in the embodiment described later as one embodiment, and do not limit the technical scope of the present invention .

In order to achieve the above object, according to a first aspect of the present invention, a biological information measuring apparatus is mounted on a user and used to measure the biological information of the user (301, 304, 304b, 305, 311, 312) The measurement unit is capable of measuring a plurality of pieces of biological information each having different power consumption required for the measurement, and as a measurement unit, the heart rate measurement unit (304, 304b) and a blood pressure measurement unit (305) for measuring the blood pressure of the user, and the measurement result obtained by measuring the biological information smaller in power consumption required for measurement by the measurement unit (301, 304, 304b) showed abnormality If the measurement of the power consumption is greater than the biometric information required for the measurement (304,304b, 305) to switch to perform the measurement at, or its A switching unit that switches short measurement interval in the measuring unit (310,310c), the heart rate measuring unit is one power required for measurement is less than the blood pressure measuring unit, switching unit, measured by the heart rate measurement unit If the heart rate showed abnormal, it switches to perform the measurement in the blood pressure measuring unit, or you switch short measurement interval in the blood pressure measuring unit.
In order to achieve the above object, the second invention according to the biological information measuring apparatus is mounted on a user and used, and a measuring unit (301, 304, 304b, 305, 311, 312) for measuring the biological information of the user The measuring unit is capable of measuring a plurality of pieces of biological information different in power consumption required for measurement, and measuring the biological information smaller in power consumption required for the measurement (301, 304 , 304b), based on the measurement result, the switching unit (310, 310c) that switches the measurement execution status or measurement interval in the measurement unit (304, 304b, 305) with higher power consumption required for measurement And a communication unit (33) that exchanges information by wireless communication with an on-board unit (20) used in the vehicle, and the on-board unit relates to the behavior of the vehicle. Information to detect the operating condition abnormality of the user and transmit the detected operating condition abnormality, and the switching unit consumes power consumption when the communication unit receives the operating condition abnormality transmitted from the on-board unit Of the plurality of pieces of biological information different from each other, the power consumption required for measurement is switched so as to carry out the measurement in the measurement unit of biological information which is larger, or the measurement interval in the measurement unit is switched short.
In order to achieve the above object, according to a third aspect of the present invention, there is provided a measuring unit (301, 304, 304b, 305, 311, 312) which is mounted on a user and used to measure the user's biological information. The measuring unit is capable of measuring a plurality of pieces of biological information different in power consumption required for measurement, and measuring the biological information smaller in power consumption required for the measurement (301, 304 , 304b), based on the measurement result, the switching unit (310, 310c) that switches the measurement execution status or measurement interval in the measurement unit (304, 304b, 305) with higher power consumption required for measurement As a measurement unit, an acceleration measurement unit (301) configured to measure an acceleration generated to the user, and sensors (3031, 30) having different measurement methods. The acceleration measurement unit includes at least a heart rate measurement unit (304b) of a first heart rate measurement unit (3041) and a second heart rate measurement unit (3042) that measure the user's heart rate using 2), and the acceleration measurement unit The power is smaller than that of the first heartbeat measuring unit and the second heartbeat measuring unit, and although the first heartbeat measuring unit has a greater influence on the measurement error due to the user's body movement than the second heartbeat measuring unit, The power consumption required is smaller than that of the second heartbeat measuring unit, and the switching unit performs the measurement by either the first heartbeat measuring unit or the second heartbeat measuring unit based on the acceleration measured by the acceleration measuring unit. Switch.

  According to this, in the biological information measuring apparatus worn and used by the user, with regard to the measurement of biological information with higher power consumption, based on the measurement result of the biological information with lower power consumption, measurement execution presence or absence or measurement interval Can be switched. Therefore, it is possible to reduce the frequency of performing measurement of biological information with higher power consumption as compared with the configuration in which measurement of biological information with higher power consumption is performed regardless of the measurement result of biological information with lower power consumption. become. Therefore, it is possible to reduce the amount of power consumption in the wearable biological information measuring apparatus by the amount of reducing the frequency of performing the measurement of biological information with higher power consumption.

A fourth invention according to the biological information measuring apparatus is a biological information measuring apparatus including a measuring unit (304, 305) which is mounted on a user and used and measures the biological information of the user, and the user measured by the measuring unit Exchange of information by wireless communication with a switch unit (310d) that switches the measurement interval of the biological information in the measurement unit to a short interval when the measurement result of the biological information of the unit shows an abnormality, and wireless communication with an on-vehicle device (20) used in the vehicle And a communication unit (33) for performing the measurement, and at least an acceleration measurement unit (301) for measuring an acceleration generated by the user as the measurement unit, the communication unit determining the acceleration generated in the vehicle from the on-board unit The information for determining acceleration that can be used is received, and it is determined from the acceleration generated for the user measured by the acceleration measuring unit and the information for determining acceleration received by the communication unit from the in-vehicle device. Were provided on the basis of the acceleration generated in the vehicle, it determines body movement judging unit body movement of the user (302,302b).

  According to this, in the biological information measuring apparatus worn and used by the user, when the measurement result of the biological information of the user indicates an abnormality, the measurement interval of the biological information is switched to a short time. It becomes possible to reduce the frequency of performing the measurement as compared with the configuration in which the measurement is performed at a short measurement interval regardless of regardless. Therefore, it is possible to reduce the power consumption in the wearable biological information measuring apparatus by the amount of reducing the frequency of performing the measurement of biological information.

  Moreover, the invention which concerns on a vehicle-mounted device is used with a vehicle, and it is mounted | worn with a user and exchanges information by radio | wireless communication with the biometric information measuring device (3, 3b, 3c, 3d, 3e) which measures user's biometric information. The in-vehicle device, which is an in-vehicle device, does not autonomously start measurement of the user's biological information in a situation where it is detected that the biological information measuring device is located in the vehicle compartment of the vehicle. A request transmission unit (204, 204e) for transmitting to the living body information measuring device a start request for requesting to start measurement of While the measurement transmission by the biological information measuring apparatus is not started by not transmitting the start request from the request transmission unit, the measurement by the biological information measurement apparatus by transmitting the start request from the request transmission unit It is allowed to start.

According to is this, until the biological information measuring apparatus used mounted on the user, in a situation where it has been detected which is located in the passenger compartment of the vehicle, it receives the start request from the vehicle-mounted device via wireless communication Can prevent the start of measurement of biological information. Therefore, it is possible to reduce the frequency of performing the measurement as compared with the configuration in which the measurement of the biological information is constantly performed in the situation where it is detected that the biological information measurement device is located in the vehicle compartment of the vehicle. Therefore, it is possible to reduce the power consumption in the wearable biological information measuring apparatus by the amount of reducing the frequency of performing the measurement of biological information.

Invention, the third invention the biological information measuring device comprising a vehicle-mounted device and a communications unit for exchanging information by radio communication to be used in the vehicle, any fourth inventions of the biological information measuring apparatus according to the biological information measurement system Kano biological information measuring device including (3,3b, 3c, 3 d) and the biological information measuring device and the vehicle-mounted device for exchanging information by radio communication and (20, 20a, 20e). As in the third to fourth inventions, it is possible to reduce the amount of power consumption in the wearable biological information measuring device.

FIG. 1 is a diagram showing an example of a schematic configuration of a biological information measurement system 1. FIG. 2 is a view showing an example of a schematic configuration of a vehicle side unit 2; FIG. 2 is a diagram showing an example of a schematic configuration of the HCU 20 in the first embodiment. FIG. 2 is a diagram showing an example of a schematic configuration of the wearable device 3 in Embodiment 1. FIG. 16 is a flowchart illustrating an example of a non-ride measurement-related process in the wearable device 3 according to the first embodiment. FIG. 7 is a flowchart illustrating an example of a process of measurement processing related to on-board time in the wearable device 3 according to the first embodiment. FIG. 21 is a flowchart illustrating an example of a flow of measurement processing related to on-board time in the wearable device 3 according to a fifth modification; FIG. FIG. 21 is a flowchart illustrating an example of a flow of measurement processing related to on-board time in the wearable device 3 according to a sixth modification; FIG. 18 is a diagram showing an example of a schematic configuration of an HCU 20a in a sixth modification. FIG. 21 is a flowchart illustrating an example of a non-ride measurement-related process of the wearable device 3 according to a modification 12; FIG. FIG. 21 is a diagram showing an example of a schematic configuration of a wearable device 3b in a modification 14. FIG. 21 is a diagram showing an example of a schematic configuration of a wearable device 3c in a modification 15. It is a flow chart which shows an example of a flow of non-boarding measurement related processing in the wearable device 3c in the modification 15. It is a flowchart which shows an example of the flow of a sleep apnea syndrome related process in the wearable device 3c of the modification 16. FIG. 18 is a diagram illustrating an example of a schematic configuration of a wearable device 3d according to a second embodiment. It is a flowchart which shows an example of the flow of non-boarding measurement related processing in the wearable device 3d in the second embodiment. FIG. 18 is a diagram showing an example of a schematic configuration of the HCU 20 e in the third embodiment. FIG. 18 is a diagram illustrating an example of a schematic configuration of a wearable device 3e according to a third embodiment.

  Several embodiments and variations for the disclosure will be described with reference to the drawings. In addition, for convenience of explanation, the same reference numerals are given to the portions having the same functions as the portions shown in the figures used in the description so far among the plurality of embodiments and the modifications, and the description thereof is omitted. May. For the parts denoted by the same reference numerals, the descriptions in the other embodiments and / or modifications can be referred to.

(Embodiment 1)
<Schematic Configuration of Biological Information Measurement System 1>
Hereinafter, Embodiment 1 of the present invention will be described using the drawings. As shown in FIG. 1, the biological information measurement system 1 includes a vehicle unit 2 and a wearable device 3.

  The vehicle side unit 2 is used in the vehicle HV and performs wireless communication with the wearable device 3. Further, the vehicle side unit 2 estimates a driver's state (hereinafter referred to as a driver's state) of the vehicle HV and presents the driver's state.

  The wearable device 3 is worn by the user and measures biometric information of the user. The wearable device 3 corresponds to a living body information measurement device in the claims. The wearable device 3 may be a wristwatch type worn on the user's arm or a spectacles type worn on the user's head in the same manner as glasses, but the following description will be given taking the wristwatch type as an example.

<Schematic Configuration of Vehicle Side Unit 2>
Subsequently, a schematic configuration of the vehicle side unit 2 will be described with reference to FIG. As shown in FIG. 2, the vehicle-side unit 2 includes an HCU (Human Machine Interface Control Unit) 20, a short-range communication device 21, a vehicle control ECU 22, a driver monitor camera 23, an operation device 24, a display device 25, and an audio output device. It has 26. The HCU 20, the short range communication device 21, and the vehicle control ECU 22 are connected, for example, by an in-vehicle LAN.

  The short distance communication device 21 transmits and receives signals in accordance with the short distance wireless communication standard. It is preferable that the communication range of the short distance communication device 21 is stopped in the passenger compartment of the vehicle HV. For example, the maximum communication distance may be about 1 m or less. The short distance communication device 21 performs wireless communication with the wearable device 3 worn by the driver of the vehicle HV. The short distance communication device 21 may be configured to transmit and receive signals in accordance with the short distance wireless communication standards such as Bluetooth (registered trademark) and ZigBee (registered trademark), but in the following, the signals are transmitted and received in accordance with the Bluetooth standard The case will be described as an example. From the viewpoint of reducing power consumption, it is more preferable to transmit and receive signals in accordance with the Bluetooth Low Energy standard.

  The following description will be made on the assumption that the pairing between the wearable device 3 worn by the user and the short distance communication device 21 has already been performed. In addition, even when the paired wearable device 3 other than the wearable device 3 worn by the user who has become the driver of the vehicle HV is in the vehicle interior of the vehicle HV, the wearable device 3 of the driver and the short distance communication device 21 The following description will be made on the assumption that the connection is selected by the operation input of the driver, for example.

  The vehicle control ECU 22 is an electronic control unit that performs acceleration / deceleration control and / or steering control of the vehicle HV. The vehicle control ECU 22 includes a steering ECU that performs steering control, a power unit control ECU that performs acceleration and deceleration control, and a brake ECU. The vehicle control ECU 22 acquires detection signals output from sensors such as an accelerator position sensor, a brake depression force sensor, a steering angle sensor, a vehicle speed sensor, and an acceleration sensor mounted on a vehicle HV, and electronically controlled throttle, brake actuator, EPS (Electric Power Steering) Outputs a control signal to each travel control device such as a motor. The vehicle control ECU 22 can also output detection signals of the above-described sensors to the in-vehicle LAN.

  The driver monitor camera 23 includes a near infrared light source and a near infrared camera. The driver monitor camera 23 is disposed, for example, on the upper surface of the instrument panel in a posture in which the near infrared camera is directed to the driver's side of the vehicle HV. In the driver monitor camera 23, the range including the face of the driver irradiated with the near infrared light by the near infrared light source is photographed by the near infrared camera. A captured image of a range including the face of the driver by the near infrared camera is output to the HCU 20.

  The operation device 24 is a group of switches operated by the driver of the vehicle HV. For example, as the operation device 24, there is a steering switch provided on a spoke of the steering wheel of the vehicle HV. The steering switch is used to perform various settings including necessity and the like of cooperation with the wearable device 3.

  Examples of the display device 25 include a combination meter, a CID (Center Information Display), a HUD (Head-Up Display), and the like. The combination meter is disposed in front of the driver's seat of the vehicle HV. The CID is arranged above the center cluster in the cabin of the vehicle HV. The combination meter and the CID display various images for information presentation on the display screen of the display based on the image data acquired from the HCU 20.

  The HUD projects the light of the image based on the image data acquired from the HCU 20 onto the projection area defined on the windshield of the vehicle HV. The light of the image reflected to the vehicle interior by the windshield is perceived by the driver sitting on the driver's seat. The driver can visually recognize the virtual image of the image projected by the HUD superimposed on the outside scenery in front of the vehicle HV.

  The audio output device 26 is, for example, an audio speaker. The audio speaker is disposed in the lining of the door of the vehicle HV. The audio speaker presents information to the occupant by means of the sound to be reproduced.

  The HCU 20 includes a CPU, a memory such as a ROM and a RAM, an I / O, and a bus connecting these, and executes various processes by executing a control program stored in the memory. Note that part or all of the functions executed by the HCU 20 may be configured as hardware by one or more ICs or the like.

  As an example, the face orientation of the driver and the open / close state of the eyelid of the driver are detected from the captured image acquired from the driver monitor camera 23, and the physical condition abnormal state and the awakening state of the driver are estimated. The posture of the driver may be detected to estimate the physical condition of the driver. In addition, other driver states may be estimated by detecting the driver's face direction and / or gaze direction to estimate the driver's looking aside, etc. However, in the case of estimating the driver's abnormal physical condition and the awakening state below. Will be described as an example.

  In addition, the HCU 20 causes the display device 25 and / or the audio output device 26 to issue a warning when the estimated driver condition requires a warning. Besides, the HCU 20 executes processing based on the information received from the wearable device 3 via the short range communication device 21. As an example, when the driver state is received from the wearable device 3 and the driver state requires a warning, information is presented from the display device 25 and / or the audio output device 26. The HCU 20 corresponds to a vehicle-mounted device in the claims.

<Schematic Configuration of HCU 20>
Subsequently, a schematic configuration of the HCU 20 will be described with reference to FIG. As shown in FIG. 3, the HCU 20 includes a driver state estimation unit 201, a presentation control unit 202, a cooperation status detection unit 203, and a request transmission unit 204.

  The driver state estimation unit 201 detects the face direction of the driver, the posture of the driver, the open / close state of the eyelid, and the like by image recognition processing from the captured image acquired from the driver monitor camera 23. Then, based on the detected face direction and the posture of the driver, the driver's abnormal physical condition is estimated as the driver state. For example, based on the fact that the face orientation is downward and the driver's posture is broken, an abnormal condition such as a fainting of the driver is estimated. Further, based on the detected open / close state of the eyelid, the awake state of the driver is estimated as the driver state. For example, the onset of drowsiness may be estimated from the amplitude versus the speed at opening and closing of the eyelid, and the sleepiness (i.e., sleep) may be estimated from the duration of the eyelid closing state. In the driver's awakening state, for example, the awakening degree decreases in the order of "awakening", "sleepiness start", and "sleeping". The driver state estimation unit 201 corresponds to a vehicle side estimation unit in the claims.

  In addition, what was described above as a driver state estimated from the captured image acquired from the driver monitor camera 23 is an example to the last, and the structure which estimates another driver state may be sufficient.

  The presentation control unit 202 causes the display device 25 and / or the audio output device 26 to present information when the driver state estimated by the driver state estimation unit 201 requires a warning. For example, when it is estimated that the physical condition is abnormal, information is sent to the passenger to notify the driver of the abnormal physical condition. In addition, when the estimated awakening state is equal to or lower than a predetermined awakening degree, information presentation is performed to prompt the driver to wake up. When it is estimated that the physical condition is abnormal, the vehicle control ECU 22 may switch the vehicle HV from the manual driving to the automatic driving and evacuate the road shoulder, etc., as well as performing the information presentation.

  In addition, when the presentation control unit 202 receives a driver status from the wearable device 3 via the short distance communication device 21, information presentation from the display device 25 and / or the audio output device 26 is performed according to the driver status. Let me do it.

  The cooperation status detection unit 203 detects a situation where the wearable device 3 of the driver of the vehicle HV is located in the vehicle compartment. As one example, after the establishment of the communication between the short distance communication device 21 and the wearable device 3 of the driver until the establishment of the communication is canceled, the wearable device 3 of the driver is detected as a situation located in the vehicle cabin. . In the state from the establishment of communication to the release of the establishment of communication, the state before the establishment of communication and the state before connection, the state where the communication is established and the state of being connected, and It includes a power saving state that can be restored.

  The case where the situation where the wearable device 3 of the driver is located in the vehicle compartment in the cooperation situation detection unit 203 is detected will be described below. When the driver wearing the wearable device 3 gets on the vehicle HV and turns on the ACC power, the short distance communication device 21 is activated. Subsequently, when the wearable device 3 of the driver and the short range communication device 21 are paired, when the wearable device 3 is selected as a connection target with the short range communication device 21, the short range communication Communication is established between the device 21 and the wearable device 3 and communication is started. At this time, the cooperation status detection unit 203 detects a situation where the wearable device 3 of the driver is located in the vehicle compartment. On the other hand, when the driver turns off the ACC power to get off the vehicle HV, the operation of the short distance communication device 21 is finished, and the connection between the wearable device 3 of the driver and the short distance communication device 21 is cancelled. At this time, the cooperation situation detection unit 203 does not detect the situation where the wearable device 3 of the driver is located in the vehicle compartment.

  The detection of the situation in which the wearable device 3 of the driver is located in the vehicle compartment may be performed by a predetermined input operation by the driver to the operation device 24, opening and closing of the driver's seat door, and driving other than the communication state as described above. It is good also as composition making detection of seating of a driver, etc. by a seating sensor of a seat into a condition. The predetermined input operation referred to here is an input operation or the like to request connection between the wearable device 3 of the driver and the HCU 20 (specifically, connection via the short distance communication device 21).

  The request transmission unit 204 transmits a start request for requesting start of measurement of biological information in the wearable device 3 to the wearable device 3 via the short distance communication device 21. The wearable device 3 targeted for short-distance wireless communication may be one being paired.

  As an example, the request transmission unit 204 transmits a start request to the wearable device 3 when the driver state estimation unit 201 can not estimate the driver state using the driver monitor camera 23. An example of a situation where it is not possible to estimate the driver state using the driver monitor camera 23 is a failure of the driver monitor camera 23, an error in image recognition processing of a face image by the driver state estimation unit 201, and the like. The driver monitor camera 23 corresponds to a vehicle side sensor in the claims.

<Schematic Configuration of Wearable Device 3>
Subsequently, a schematic configuration of the wearable device 3 will be described with reference to FIG. The wearable device 3 includes a measurement related unit 30, a battery 31, an operation input unit 32, a communication unit 33, and a presentation unit 34, as shown in FIG.

  The battery 31 is a power supply that supplies power for operating the wearable device 3. The battery 31 may be a primary battery such as a lithium battery, or may be a secondary battery such as a lithium ion battery.

  The operation input unit 32 is a group of switches operated by the user. The operation input unit 32 may be a mechanical switch or a touch panel switch. As an example, it has a power switch that switches the power of the wearable device 3 between the ON state and the OFF state, a measurement start switch that instructs the start of measurement of biological information, a presentation start switch that instructs the presentation of measurement results, etc. . The measurement start switch and the presentation start switch may be configured to be able to designate each of a plurality of pieces of biological information as targets.

  The power on / off of the wearable device 3 may not be switched by the operation input from the user to the operation input unit 32. For example, it may be configured to be switched automatically according to the attachment / detachment of the wearable device 3.

  The communication unit 33 performs near field communication with the near field communication device 21 of the vehicle HV. In the example of the present embodiment, signals are transmitted and received in accordance with the Bluetooth Low Energy standard.

  The presentation unit 34 presents information based on the information output from the measurement related unit 30. Information presentation may be performed by a display device or an audio output device. As one example, the numerical value of the user's biological information measured by the measurement related unit 30 may be displayed, or text and / or an icon corresponding to the user state estimated by the measurement related unit 30 may be displayed.

<Schematic Configuration of Measurement Related Unit 30>
Subsequently, a schematic configuration of the measurement related unit 30 will be described with reference to FIG. As shown in FIG. 4, the measurement related unit 30 includes an acceleration sensor 301, a body movement determination unit 302, a pulse wave sensor 303, a heart rate measurement unit 304, a blood pressure measurement unit 305, an abnormality determination unit 306, an accumulation unit 307, and a state estimation unit. A collaboration related unit 309 and a switching unit 310 are provided.

  The acceleration sensor 301 is a sensor that sequentially measures the acceleration generated in the wearable device 3 as a voltage value when activated. Therefore, the acceleration sensor 301 measures the acceleration generated at the site of the user wearing the wearable device 3 as biological information of the user. The acceleration sensor 301 corresponds to a measurement unit and an acceleration measurement unit in the claims. For example, as the acceleration sensor 301, a three-axis acceleration sensor capable of measuring acceleration along axial directions of three axes orthogonal to each other may be used. The acceleration sensor 301 may be configured to use a 1-axis acceleration sensor or a 2-axis acceleration sensor. The acceleration sensor 301 outputs the measured acceleration to the body movement determination unit 302.

  The body movement determination unit 302 determines the body movement of the user based on the acceleration measured by the acceleration sensor 301. As an example, it is determined that the user's body motion is present if any of the three axis accelerations is equal to or greater than the threshold, and the user's no motion is determined if any of the three axis accelerations is less than the threshold. Do. That is, the body movement determination unit 302 determines the presence or absence of body movement of the user. The threshold referred to here may be, for example, an arbitrary value set so as not to determine noise in the absence of body movement of the user as presence of body movement. The threshold values of each of the three axes may be different.

  When activated, the pulse wave sensor 303 detects the pulse wave of the user at the site where the wearable device 3 is attached. The pulse wave sensor 303 is a pulse wave sensor that can change the measurement cycle (in other words, the sampling rate), and can switch the sampling rate to, for example, a low cycle of 20 Hz and a high cycle of 200 Hz. As such a pulse wave sensor 303, for example, a photoelectric pulse wave sensor, an impedance pulse wave sensor or the like can be used.

  In the present embodiment, a case where a plethysmogram is measured using a photoelectric pulse wave sensor as an example will be described as an example. In addition, in this embodiment, since the case where the wearable device 3 is a wristwatch type is mentioned as an example, it is more preferable to use a reflective photoelectric pulse wave sensor than a transmissive type. Therefore, the case of using a photoelectric pulse wave sensor that measures a plethysmogram by emitting an LED and receiving the reflected light of the light irradiated to the user will be described as an example. The configuration may be such that a green LED is used as the LED.

  The heart rate measurement unit 304 performs known signal processing on the signal of the volume pulse wave sequentially detected by the pulse wave sensor 303, and measures the heart rate of the user from the volume pulse wave. The measurement result is output to the abnormality determination unit 306. The heart rate measurement unit 304 also corresponds to the measurement unit in the claims.

  The blood pressure measurement unit 305 performs known signal processing on the volume pulse wave signal sequentially detected by the pulse wave sensor 303, and measures the user's blood pressure from the volume pulse wave. The measurement result is output to the abnormality determination unit 306. The blood pressure measurement unit 305 also corresponds to the measurement unit in the claims.

  In order to measure the blood pressure based on the signal of the plethysmogram, it is necessary to measure the waveform of the plethysmogram in detail by setting the sampling rate higher than the sampling rate required for measuring the heart rate. Therefore, when measuring blood pressure using the plethysmogram detected by the pulse wave sensor 303, it is necessary to make the sampling rate larger than when measuring only the heart rate of the heart rate and the blood pressure, Power consumption required for measurement increases. The power consumption required to measure the acceleration by the acceleration sensor 301 is smaller than the power consumption required to measure the heart rate by the heart rate measurement unit 304 using the pulse wave sensor 303. Therefore, it is assumed that the power consumption required to measure the user's biological information increases in the order of “acceleration”, “heart rate”, and “blood pressure”.

  The abnormality determination unit 306 determines whether there is an abnormality in the heart rate measured by the heart rate measurement unit 304 and whether there is an abnormality in the blood pressure measured by the blood pressure measurement unit 305. As an example, when the value of the measurement result exceeds the upper limit value or falls below the lower limit value, it may be determined that there is an abnormality. The upper limit value and the lower limit value mentioned here are values at which the measurement result can be said to be abnormal, and may be fixed values set arbitrarily, or variable values sequentially set by learning It is also good. In the case of using a variable value, for example, an average value of past measurement results may be set as the reference heart rate. For example, the upper limit may be twice the reference heart rate, and the lower limit may be two thirds of the reference heart rate.

  For example, a time stamp indicating the measured time is added to the measurement result determined to be abnormal by the abnormality determination unit 306 and accumulated in the accumulation unit 307. As the storage unit 307, a non-volatile memory may be used. Further, the abnormality determination unit 306 outputs the measurement result acquired from the measurement unit 304 and the blood pressure measurement unit 305 to the state estimation unit 308 when it is determined that there is an abnormality in the heart rate and the blood pressure.

  The state estimation unit 308 estimates the user state from the measurement results of the heart rate measurement unit 304 and the blood pressure measurement unit 305. The state estimation unit 308 corresponds to the user-side estimation unit in the claims. As an example, based on a matrix in which the heart rate and blood pressure and the physical condition abnormal state are associated in advance, the physical condition abnormal state may be estimated as the user state. Alternatively, the awake state may be estimated as the user state based on a matrix in which the heart rate and the blood pressure are associated with the awake state in advance. The state estimation unit 308 outputs the estimated user state to the presentation unit 34.

  The cooperation related unit 309 detects that the wearable device 3 is located in the vehicle interior of the vehicle HV, and detects a request transmitted from the vehicle unit 2 via the communication unit 33. As an example, it is detected that the wearable device 3 is located in the vehicle compartment after communication is established between the communication unit 33 and the short distance communication device 21 of the vehicle unit 2 until the communication establishment is canceled. Do. In the state from the establishment of communication to the release of the establishment of communication, the state before the establishment of communication and the state before connection, the state where the communication is established and the state of being connected, and It includes a power saving state that can be restored.

  Information indicating that the cooperation status detection unit 203 of the vehicle unit 2 has detected that the wearable device 3 of the driver is located in the vehicle compartment is received from the vehicle unit 2 via the communication unit 33. The wearable device 3 may be detected based on

  The switching unit 310 switches whether the measurement by the acceleration sensor 301, the heart rate measuring unit 304, and the blood pressure measuring unit 305 is performed, or switches the operating condition of the pulse wave sensor 303 and the sampling rate. The switching unit 310 switches whether the measurement by the acceleration sensor 301, the heartbeat measuring unit 304, and the blood pressure measuring unit 305 is performed according to the operation input received by the operation input unit 32. In addition, switching unit 310 detects acceleration sensor 301, heart rate measurement unit 304, and blood pressure measurement unit according to the detection result of cooperation related unit 309, the measurement result of acceleration sensor 301, and the determination result of abnormality determination unit 306. Switch the execution of measurement at 305. In the following, the measurement by the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305 according to the detection result of the cooperation related unit 309, the measurement result of the acceleration sensor 301, and the determination result of the abnormality determination unit 306. The details of switching the implementation will be described.

<Non-ride measurement related processing>
Here, using the flowchart of FIG. 5, the flow of processing related to measurement of biological information in the wearable device 3 in a situation where the wearable device 3 is not located in the vehicle compartment of the vehicle HV (hereinafter referred to as non-riding measurement related processing) An example will be described. The flowchart in FIG. 5 is configured when the power of the wearable device 3 is turned on and when the cooperation related unit 309 does not detect that the wearable device 3 is located in the vehicle compartment. And it is sufficient.

  First, in step S1, the switching unit 310 activates the acceleration sensor 301. In step S2, the switching unit 310 operates the pulse wave sensor 303 at a low cycle. In the example of this embodiment, it operates at a sampling rate of 20 Hz.

  In step S3, the body movement determination unit 302 determines the presence or absence of body movement of the user based on the acceleration measured by the acceleration sensor 301. And when it determines with there being no body movement (it is YES at S3), it moves to S4. On the other hand, when it is determined that there is body movement (NO in S3), the process moves to step S14.

  In step S4, the switching unit 310 causes the heart rate measurement unit 304 to perform measurement, and the heart rate measurement unit 304 measures the user's heart rate based on the volume pulse wave sequentially detected by the pulse wave sensor 303. The reason why the measurement of biological information using the pulse wave sensor 303 is not started unless the body movement determination unit 302 determines that there is no body movement of the user is to prevent the measurement accuracy from being degraded due to the large body movement of the user. is there.

  In step S5, the abnormality determination unit 306 determines whether there is an abnormality in the heart rate measured by the heart rate measurement unit 304. Then, when it is determined that there is an abnormality (YES in S5), the process proceeds to step S7. On the other hand, when it is determined that there is no abnormality (NO in S5), the process proceeds to step S6.

  In step S6, when it is the completion | finish timing of a non-boarding time measurement related process (it is YES at S6), a non-boarding time measurement related process is complete | finished. On the other hand, if it is not the end timing of the non-riding time measurement related process (NO in S6), the process returns to S2 to repeat the process. As an example of the end timing of the non-ride measurement-related processing, there is the fact that the cooperation related unit 309 detects that the power of the wearable device 3 is turned off and that the wearable device 3 is located in the vehicle compartment.

  In step S7, the abnormality determination unit 306 accumulates in the accumulation unit 307 the heart rate (that is, the abnormality measurement value) when it is determined that there is an abnormality in S5. In step S8, the switching unit 310 operates the pulse wave sensor 303 at a high cycle. In the example of this embodiment, it operates at a sampling rate of 200 Hz.

  In step S9, the switching unit 310 causes the blood pressure measurement unit 305 to perform measurement, and the blood pressure measurement unit 305 measures the user's blood pressure based on the plethysmogram sequentially detected by the pulse wave sensor 303. When the blood pressure measurement unit 305 starts to measure the blood pressure, for example, the heart rate measurement unit 304 uses the volume pulse wave sequentially detected by the pulse wave sensor 303 operating at a high cycle. You can measure your heart rate.

  In step S10, the abnormality determination unit 306 determines whether there is an abnormality in the blood pressure measured by the blood pressure measurement unit 305. When it is determined that there is an abnormality (YES in S10), the process proceeds to step S11. On the other hand, when it is determined that there is no abnormality (NO in S10), the process proceeds to step S14.

  In step S11, the abnormality determination unit 306 stores in the storage unit 307 the blood pressure (that is, the abnormality measurement value) when it is determined that there is an abnormality in S10. In step S12, the state estimation unit 308 estimates the user state from the measurement results of the heart rate measurement unit 304 and the blood pressure measurement unit 305.

  In step S13, the presentation unit 34 performs presentation according to the user state estimated by the state estimation unit 308. In the non-riding time measurement related process, the presentation according to the awake state may not be performed. Further, in the non-riding time measurement related process, the measurement results of the heart rate measurement unit 304 and the blood pressure measurement unit 305 may be presented according to the operation input received by the operation input unit 32.

  In step S14, when it is the end timing of non-boarding measurement related processing (YES in S14), the non-boarding measurement related processing is ended. On the other hand, if it is not the end timing of the non-riding time measurement related process (NO in S14), the process returns to S3 to repeat the process.

  The switching unit 310 may be configured to switch on / off of measurement by the blood pressure measurement unit 305 in accordance with the operation input received by the operation input unit 32, as well as the timing illustrated in the flowchart of FIG.

<On board measurement related processing>
Subsequently, using the flowchart of FIG. 6, the flow of processing (hereinafter referred to as on-board measurement related processing) related to measurement of biological information in the wearable device 3 in a situation where the wearable device 3 is located in the vehicle compartment of the vehicle HV. An example will be described. The flowchart in FIG. 6 is configured to start when the power of the wearable device 3 is turned on and the cooperation related unit 309 detects that the wearable device 3 is located in the vehicle compartment. do it.

  First, in step S21, when the abnormality measurement value is accumulated in the accumulation unit 307 (YES in S21), the process proceeds to step S22. On the other hand, when the abnormality measurement value is not accumulated in the accumulation unit 307 (NO in S21), the process proceeds to step S23.

  In step S22, the communication unit 33 transmits the abnormality measurement value stored in the storage unit 307 to the short distance communication device 21 of the vehicle unit 2. The transmitted abnormal measurement value may be deleted from the storage unit 307. Further, in the vehicle-side unit 2 that has received the abnormality measurement value, the HCU 20 may be configured to perform presentation or the like according to the received abnormality measurement value before boarding. As an example, the degree of severity of the received abnormal measurement value before boarding is judged by the threshold value, and if the degree of severity is high, it is recommended to go to the hospital or the driving is switched to the passenger. You can make a presentation that encourages you to take care of you and encourages the use of public transport.

  In step S23, when the cooperation related unit 309 detects the start request transmitted from the vehicle unit 2, it is assumed that the start request has been received (YES in S23), and the process proceeds to step S25. On the other hand, when the start request transmitted from the vehicle unit 2 is not detected, it is assumed that the start request is not received (NO in S23), and the process proceeds to step S24.

  In step S24, when it is the end timing of the boarding time measurement related process (YES in S24), the boarding time measurement related process is ended. On the other hand, if it is not the end timing of the boarding time measurement related process (NO in S24), the process returns to S23 and the process is repeated. As an example of the end timing of the on-board measurement-related process, there is the fact that the cooperation related unit 309 does not detect that the power of the wearable device 3 is turned off and that the wearable device 3 is located in the vehicle compartment. .

  The processes of steps S25 to S29 are the same as the processes of S1 to S5 described above. In step S30, when it is the end timing of the boarding time measurement related process (YES in S30), the boarding time measurement related process is ended. On the other hand, if it is not the end timing of the boarding time measurement related process (NO in S30), the process returns to S26 to repeat the process.

  The processes of steps S31 to S33 are the same as the processes of S8 to S10 described above. The process of step S34 is the same as the process of S12 described above. In other words, the process of steps S25 to S34 does not include the process of accumulating the abnormal measurement value in the accumulation unit 307 when the abnormality determination unit 306 determines that there is an abnormality. It is similar to the process. In S34, the state estimation unit 308 estimates the user state of the user who has become the driver from the measurement results of the heart rate measurement unit 304 and the blood pressure measurement unit 305. The user state of the user who has become the driver corresponds to the driving state of the user in the claims.

  In the process of step S35, the communication unit 33 transmits the user state estimated in step S34 to the short distance communication device 21 of the vehicle unit 2. The user state estimated in the boarding time measurement related process is the user state of the user who has become the driver, and thus can be reworded as the driver state. In the vehicle-side unit 2 that has received this driver state, the HCU 20 causes the display device 25 and / or the audio output device 26 to make a presentation according to the received driver state. As one example, when the driver's condition is an abnormal condition, information is sent to the passenger to notify the driver's abnormal condition. In addition, when the driver state is an awake state lower than a predetermined awakening degree, information presentation for prompting the driver to awake is performed.

  In step S36, when it is the end timing of the boarding time measurement related process (YES in S36), the boarding time measurement related process is ended. On the other hand, if it is not the end timing of the boarding time measurement related process (NO in S36), the process returns to S27 and the process is repeated.

  The transmission of the start request from the vehicle unit 2 is performed when the vehicle unit 2 can not estimate the driver state using the driver monitor camera 23 as described above. Therefore, the start request is not transmitted from the vehicle unit 2 in a situation where the HCU 20 of the vehicle unit 2 can estimate the user state similar to that estimated by the wearable device 3. Therefore, in the situation where the HCU 20 of the vehicle side unit 2 can estimate the same user state as estimated by the wearable device 3, the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305 in the wearable device 3 Measurement will not be performed.

  In addition, according to the operation input received by the operation input unit 32, the switching unit 310 performs measurement by the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305, not limited to the timing shown in the flowchart of FIG. It may be configured to switch the presence or absence.

<Summary of Embodiment 1>
According to the configuration of the first embodiment, the measurement by the heart rate measurement unit 304 and the blood pressure measurement unit 305 using the pulse wave sensor 303, which consumes a large amount of power consumed for measurement than the measurement of acceleration by the acceleration sensor 301, If it is determined by the body movement determination unit 302 that there is a body movement of the user based on the above, the operation is switched not to be performed. Therefore, the amount of power consumption of the wearable device 3 can be reduced by the amount of reduction in the frequency of performing the measurement of the heart rate and / or the blood pressure, which consumes more power than the measurement of the acceleration. In addition, when the body movement determination unit 302 determines that there is body movement of the user, the measurement by the heart rate measurement unit 304 and the blood pressure measurement unit 305 is not performed, so the measurement accuracy may be degraded by the body movement of the user. In this case, it is possible not to perform the measurement in the heart rate measurement unit 304 and the blood pressure measurement unit 305. As a result, in the wearable device 3, it is possible to suppress the power consumption while suppressing the decrease in measurement accuracy.

  In addition, according to the configuration of the first embodiment, the abnormality determination unit 306 determines that there is an abnormality in the heart rate in the measurement by the blood pressure measurement unit 305, which consumes more power than the heartbeat measurement unit 304 requires. Switch to not implement until. Therefore, the amount of power consumption can be reduced in the wearable device 3 by the amount of reducing the frequency of performing blood pressure measurement, which consumes more power than heart rate measurement. In addition, it is highly possible that there is no abnormality in blood pressure until it is determined that there is an abnormality in heart rate, so we narrow down to timings where it is necessary to measure blood pressure, such as timing when abnormality in blood pressure is likely to occur. It is possible to measure blood pressure. Therefore, in the wearable device 3, it is possible to suppress the power consumption while measuring the blood pressure while squeezing the timing at which the necessity of measuring the blood pressure is high.

  Further, according to the configuration of the first embodiment, when the wearable device 3 of the driver comes to be positioned in the compartment of the vehicle HV, the abnormal measurement value before getting on board stored in the storage unit 307 is transmitted to the HCU 20 Therefore, it becomes possible to cause the HCU 20 to present information prompting the driver to take action according to the abnormal measurement value before boarding.

  Furthermore, according to the configuration of the first embodiment, in the situation where it is detected that the wearable device 3 of the driver is located in the vehicle compartment of the vehicle HV, the start transmitted from the HCU 20 via the short range communication device 21 Until the communication unit 33 receives the request, measurement by any of the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305 is not started. Therefore, it is possible to reduce the frequency of performing the measurement, as compared with the configuration in which the measurement of the biological information is constantly performed in a situation where the wearable device 3 is detected in the vehicle compartment of the vehicle HV. Therefore, it is possible to reduce the amount of power consumption in the wearable device 3 by the amount by which the frequency of measuring the biological information is reduced.

  The transmission of the start request from the vehicle unit 2 is not performed in the situation where the HCU 20 of the vehicle unit 2 can estimate the user state similar to that estimated by the wearable device 3 as described above. Therefore, the amount of power consumption can be reduced in the wearable device 3 according to the necessity of the wearable device 3.

(Modification 1)
In the first embodiment, the wearable device 3 has a configuration in which the state estimation unit 308 estimates the user state when the abnormality determination unit 306 determines that there is an abnormality in the blood pressure in addition to the heart rate. Absent. For example, although the abnormality determination unit 306 determines that there is an abnormality in the heart rate, the state estimation unit 308 may estimate the user state even when it determines that there is no abnormality in the blood pressure. Alternatively, the state estimation unit 308 may estimate the user state even when the abnormality determination unit 306 determines that both the heart rate and the blood pressure are not abnormal. Note that the user state to be estimated may not be changed according to the type of measurement result that can be used for estimation, or the user state to be estimated may be changed.

(Modification 2)
In the first embodiment, in the wearable device 3, based on the acceleration measured by the acceleration sensor 301, whether or not to perform measurement by the heart rate measurement unit 304 is switched, and based on the heart rate measured by the heart rate measurement unit 304, the blood pressure measurement unit 305. Although the structure which switches the measurement implementation presence or absence in (1) was shown, it is not necessarily restricted to this. The combination is not limited to the above as long as it is a configuration that restricts the execution of measurement with a larger amount of power consumption required for measurement based on the measurement result with a smaller amount of power consumption required for measurement.

  For example, based on the acceleration measured by the acceleration sensor 301, it may be configured to switch on / off of measurement in both the heart rate measurement unit 304 and the blood pressure measurement unit 305. Further, a part of the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305 may not be provided. Furthermore, the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305 may be configured to use a measurement unit that measures biological information.

(Modification 3)
In the first embodiment, the switching unit 310 is configured to switch between the measurement of acceleration by the acceleration sensor 301, the measurement of heart rate by the heart rate measurement unit 304, and the measurement of blood pressure by the blood pressure measurement unit 305. It is not limited to this. For example, it may be configured to switch only a part of the measurement execution status among these.

(Modification 4)
In the first embodiment, when the abnormality measurement value is accumulated in the accumulation unit 307 in the on-board measurement in the wearable device 3, the short-range communication device of the vehicle unit 2 may use the accumulated abnormality measurement value. Although the configuration for transmission to 21 is shown, the present invention is not necessarily limited to this. For example, the abnormality measurement value may not be accumulated in the accumulation unit 307, or the abnormality measurement value may not be transmitted to the short distance communication device 21. In this case, in the flowchart of FIG. 5, the processes of S7 and S11 may be omitted. Further, in the flowchart of FIG. 6, the processes of S21 to S22 may be omitted.

(Modification 5)
In addition, the switching unit 310 performs measurement when the communication unit 33 receives information on operating condition abnormality indicating that the operating condition of the user who has become the driver is abnormal from the HCU 20 via the short distance communication device 21. Of a plurality of pieces of biometric information that require different power consumption, the configuration may be switched to perform measurement of biometric information that requires a larger amount of power consumption for measurement (hereinafter, variation 5).

  In the fifth modification, the HCU 20 uses the vehicle information regarding the behavior of the vehicle, for example, detection signals output from each sensor such as a steering angle sensor, a vehicle speed sensor, an acceleration sensor, etc. It shall be detected. As an example, it may be configured that abnormal driving condition is detected when any of sudden steering, sudden acceleration, and sudden braking occurs more than a prescribed number of times (for example, five times or more in 3 minutes) within a fixed time. . For example, if the rate of change in steering angle per unit time exceeds a threshold, then the steering may be abrupt, if the acceleration exceeds the threshold, the acceleration may be rapid, and if the deceleration exceeds the threshold, the braking may be abrupt. Then, the HCU 20 transmits the detected operating condition abnormality via the short distance communication device 21.

  Here, an example of the flow of the measurement processing related to on-boarding in the wearable device 3 according to the fifth modification will be described using the flowchart in FIG. 7. For example, the flowchart of FIG. 7 may be started according to the same conditions as the flowchart of FIG. Further, in the flowchart of FIG. 7, as in the fourth embodiment, the case where the abnormal measurement value is not transmitted to the short distance communication device 21 in the onboard measurement-related processing will be described as an example. The measurement value may be transmitted to the short distance communication device 21.

  First, the process of step S41 to step S47 is the same as the process of S23 to S29 described above. In S47, when it is determined that there is an abnormality in the heart rate measured by the heart rate measurement unit 304 (YES in S47), the process proceeds to step S50, the pulse wave sensor 303 is operated in a high cycle and the blood pressure measurement unit 305 Blood pressure measurement is performed. On the other hand, when it is determined that there is no abnormality (NO in S47), the process proceeds to step S48.

  In step S48, when the communication unit 33 receives the information on the operating condition abnormality transmitted from the HCU 20 via the short distance communication device 21 (YES in S48), the process proceeds to step S50, and the pulse wave sensor 303 is high. The blood pressure measurement is performed by the blood pressure measurement unit 305 while being operated in a cycle. On the other hand, when the information on the operating condition abnormality is not received by the communication unit 33 (NO in S48), the process proceeds to step S49.

  The processes of steps S49 to S55 are the same as the processes of S30 to S36 described above. In addition, according to the operation input received by the operation input unit 32, the switching unit 310 performs measurement by the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305, not limited to the timing shown in the flowchart of FIG. It may be configured to switch the presence or absence.

  According to the configuration of the fifth modification, more detailed biological information in the wearable device 3 does not appear in the measurement result in the measurement unit of the wearable device 3, but also when the driver's abnormality appears in the vehicle information related to the behavior of the vehicle. It becomes possible to carry out the measurement of In the example of FIG. 7, although it does not appear in the measurement result in the heart rate measurement unit 304, it becomes possible to measure the blood pressure in the blood pressure measurement unit 305 when the driver's abnormality appears in the vehicle information related to the behavior of the vehicle. .

(Modification 6)
In the first embodiment, a configuration is shown in which the wearable device 3 estimates the user state of the user who has become the driver based on the measurement results of the measurement units such as the heart rate measurement unit 304 and the blood pressure measurement unit 305. Not limited to. For example, based on the measurement result of the measurement unit of the wearable device 3, the vehicle side may be configured to estimate the user state of the user who has become the driver (hereinafter, modified example 6).

  First, the wearable device 3 of the sixth modification will be described. The wearable device 3 according to the sixth modification is the same as the first embodiment except that a part of the on-board measurement related processing is different.

  Here, with reference to the flowchart of FIG. 8, an example of the flow of the on-board measurement processing in the wearable device 3 according to the sixth modification will be described. The flowchart of FIG. 8 may be configured to start according to, for example, the same conditions as the flowchart of FIG. Further, in the flowchart of FIG. 8, for convenience, as in the fourth modification, the case where the abnormality measurement value is not transmitted to the short distance communication device 21 in the on-board measurement-related processing will be described as an example.

  First, the process of step S61 to step S68 is the same as the process of S23 to S30 described above. In S67, when the abnormality determination unit 306 determines that there is an abnormality in the heart rate measured by the heart rate measurement unit 304 (YES in S47), the process proceeds to step S69. In step S69, the communication unit 33 transmits the heart rate (that is, the abnormality measurement value) when it is determined that there is an abnormality in step S67 to the short distance communication device 21 of the vehicle unit 2. In step S70, the presentation unit 34 presents information indicating that there is an abnormality in the heart rate. As one example, the heart rate at the time when it is determined that there is an abnormality is presented, or the notification that there is an abnormality in the heart rate is presented.

  The processes of steps S71 to S73 are the same as the processes of S31 to S33 described above. In S73, when the abnormality determination unit 306 determines that the blood pressure measured by the blood pressure measurement unit 305 is abnormal (YES in S73), the process proceeds to step S74. In step S74, the communication unit 33 transmits the blood pressure (that is, the abnormality measurement value) when it is determined that there is an abnormality in S73, to the short distance communication device 21 of the vehicle unit 2. In step S75, the presentation unit 34 presents information indicating that the blood pressure is abnormal. As one example, the blood pressure at the time of judging that there is an abnormality is presented, or the notification that there is an abnormality in the blood pressure is presented.

  The process of step S76 is the same as the process of S36 described above. In addition, according to the operation input received by the operation input unit 32, the switching unit 310 performs measurement by the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305, not limited to the timing shown in the flowchart of FIG. It may be configured to switch the presence or absence.

  Subsequently, the vehicle-side unit of Modification 6 will be described. The vehicle side unit 2 of the modification 6 is the same as the vehicle side unit 2 of the first embodiment except that the HCU 20 a is provided instead of the HCU 20.

  Here, the HCU 20a of the sixth modification will be described with reference to FIG. As shown in FIG. 9, the HCU 20a includes a driver state estimation unit 201a, a presentation control unit 202a, a cooperation status detection unit 203, and a request transmission unit 204. The HCU 20 a is the same as the HCU 20 of the first embodiment except that the HCU 20 a includes the driver state estimation unit 201 a and the presentation control unit 202 a instead of the driver state estimation unit 201 and the presentation control unit 202. The HCU 20a also corresponds to a vehicle-mounted device in the claims.

  The driver state estimation unit 201a is the driver according to Embodiment 1 except that the user state (that is, the driver state) of the user who has become the driver is estimated based on the abnormal measurement value transmitted from the wearable device 3. Similar to the state estimation unit 201. The driver state estimation unit 201a also corresponds to the vehicle side estimation unit in the claims.

  When the driver state estimation unit 201a acquires, for example, an abnormal measurement value of the heart rate and an abnormal measurement value of the blood pressure via the short distance communication device 21, the user in the same manner as the state estimation unit 308 of the first embodiment. It is sufficient to estimate the state. The user state may be estimated based on only the abnormal measurement value of the heart rate among the abnormal measurement value of the heart rate and the abnormal measurement value of the blood pressure. In this case, for example, the user state may be estimated from the abnormal measurement value of the heart rate based on the correspondence relationship in which the heart rate and the user state are associated in advance.

  The presentation control unit 202a is the same as the presentation control unit 202 of the first embodiment except that information presentation according to the driver state received from the wearable device 3 is not performed.

  According to the configuration of the sixth modification, in a situation where the wearable device 3 can communicate with the HCU 20a, the HCU 20a can estimate the user state based on the measurement result in the measurement unit. Therefore, in the wearable device 3, it is possible to reduce the amount of power consumption for estimating the user state in the wearable device 3.

  Although the flowchart of FIG. 8 shows a configuration in which the presentation unit 34 presents information indicating that there is an abnormality when the abnormality determination unit 306 determines that there is an abnormality, this is not necessarily the case. For example, even when the abnormality determination unit 306 determines that there is an abnormality, the presentation unit 34 may be configured not to present information indicating that there is an abnormality.

(Modification 7)
In the first embodiment, a start request for starting measurement of biological information in the wearable device 3 can not be estimated by using the driver monitor camera 23 in the driver state estimation unit 201. Although the configuration for transmitting in the event of failure is shown, this is not necessarily the case. For example, the start request may be transmitted on the condition other than the situation where the driver state estimation unit 201 can not estimate the driver state using the driver monitor camera 23.

  As an example, the start request may be transmitted on the condition that an operation input for starting measurement of biological information in the wearable device 3 is performed on the operation device 24. In addition, in a vehicle HV equipped with a vehicle-side unit 2 not having a function of estimating a driver's state, when establishing communication between the near-field communication device 21 of the vehicle-side unit 2 and the wearable device 3 The start request may be transmitted according to the necessity of setting. The setting of necessity may be performed by, for example, the user in advance via the operation device 24. Alternatively, the setting may be performed each time the user establishes the communication via the operation device 24.

(Modification 8)
In the first embodiment, the driver state estimation unit 201 estimates the driver state from the captured image acquired from the driver monitor camera 23. However, the present invention is not limited to this. For example, the driver state estimation unit 201 may estimate the driver state from vehicle information such as a detection signal output from each sensor such as a steering angle sensor, a vehicle speed sensor, or an acceleration sensor (hereinafter referred to as modified example 8). It is preferable not to combine the structure of this modification 8 with the modification 5 of the modifications.

(Modification 9)
In the first embodiment, the driver state estimation unit 201 of the HCU 20 estimates the driver state from the captured image acquired from the driver monitor camera 23. However, the present invention is not limited thereto. For example, a control unit that estimates the driver state from the captured image acquired from the driver monitor camera 23 may be provided separately from the HCU 20. When this configuration is adopted in the sixth modification, the driver state estimation unit 201 of the HCU 20 may estimate the driver state based on the measurement result transmitted from the wearable device 3, for example.

(Modification 10)
In addition, the function of the HCU 20 described in the above-described embodiment and modification may be borne by an electronic control unit integrated with the short distance communication device 21.

(Modification 11)
In the first embodiment, the wearable device is detected based on the presence or absence of the start request transmitted from the HCU 20 of the vehicle unit 2 in the situation where the wearable device 3 is detected by the linkage relation unit 309 that the wearable device 3 is located in the vehicle cabin of the vehicle HV. Although the structure which switches the measurement implementation presence or absence of biometric information in 3 was shown, it is not necessarily restricted to this. For example, the wearable device 3 may be configured not to have a function of performing wireless communication with the vehicle-side unit 2, and regardless of whether the wearable device 3 is located in the vehicle compartment, autonomously It is good also as composition which changes the measurement execution existence.

(Modification 12)
In Embodiment 1, although the switching part 310 showed the structure which switches the measurement implementation presence or absence in measurement parts, such as the blood pressure measurement part 305, it does not necessarily restrict to this. For example, the switching unit 310 may switch the measurement interval of the measurement unit (hereinafter, modified example 12).

  The HCU 20 of the modification 12 is similar to the HCU 20 of the first embodiment. When the configuration of the modification 6 is adopted in the modification 12, the HCU 20 of the modification 12 is the same as the HCU 20 a of the modification 6. Further, the wearable device 3 of the modification 12 is that default measurement intervals of heart rate and blood pressure are defined, and some processes of non-boarding measurement related processing and boarding measurement related processing are performed. The wearable device 3 is the same as the wearable device 3 of the first embodiment except for differences.

  Here, an example of the flow of non-riding time measurement related processing in the wearable device 3 of the modification 12 will be described using the flowchart of FIG. 10. The flowchart of FIG. 10 may be configured to start according to the same conditions as the flowchart of FIG. 5, for example.

  First, the process of step S81 to step S83 is the same as the process of S1 to S3 described above. In step S84, when it is the regular measurement timing of the heart rate (YES in S84), the process proceeds to step S85. On the other hand, when it is not the regular measurement timing of the heart rate (NO in S84), the process proceeds to step S96. The regular measurement interval of the heart rate may be, for example, an interval of 5 minutes. The periodic measurement timing may be determined by the switching unit 310 by measuring time with a timer circuit or the like starting from the point in time when the pulse wave sensor 303 starts the operation at a low cycle in S82.

  The process of step S85 to step S86 is the same as the process of S4 to S5 described above. In S5, when the abnormality determination unit 306 determines that there is an abnormality in the heart rate measured by the heart rate measurement unit 304 in S86 (YES in S86), the process proceeds to step S89, and the heart rate when it is determined that there is an abnormality. (That is, an abnormal measurement value) is accumulated in the accumulation unit 307. On the other hand, when it is determined that there is no abnormality (NO in S86), the process proceeds to step S87.

  In step S87, if it is the regular measurement timing of blood pressure (YES in S87), the process proceeds to step S90, the pulse wave sensor 303 is operated in a high cycle, and the blood pressure measurement unit 305 measures the blood pressure. . On the other hand, when it is not the regular measurement timing of blood pressure (NO in S87), the process proceeds to step S88. The regular measurement interval of blood pressure may be, for example, an interval of 10 minutes or the like. The periodic measurement timing of the blood pressure may be determined by the switching unit 310 in the same manner as the periodic measurement timing of the heart rate.

  As shown in the flowchart of FIG. 10, when it is determined that there is an abnormality in the heart rate measured by the heart rate measurement unit 304, even if it is not the regular measurement timing of the blood pressure, the blood pressure measurement unit 305 The measurement is performed and the blood pressure measurement interval is switched short.

  The processes of steps S88 to S96 are the same as the processes of S6 to S14 described above. Note that the switching unit 310 is not limited to the timing shown in the flowchart of FIG. 10, and switches the measurement execution status of the heart rate measurement unit 304 and the blood pressure measurement unit 305 according to the operation input received by the operation input unit 32. It is also good.

  The on-board measurement-related process in the wearable device 3 of the modification 12 may be performed as follows. As an example, a process similar to S84 may be performed between the process of S27 and the process of S28 in the flowchart of FIG. Further, the processing similar to S87 may be performed between the processing of S29 and the processing of S30 in the flowchart of FIG.

  According to the configuration of the modification 12, the measurement interval in the blood pressure measurement unit 305, which consumes more power for measurement than the heart rate measurement unit 304, is measured until the abnormality determination unit 306 determines that the heart rate is abnormal. Do not switch intervals short. Therefore, the amount of power consumption can be reduced in the wearable device 3 by the amount of reducing the frequency of performing blood pressure measurement, which consumes more power than heart rate measurement.

(Modification 13)
The present invention is not limited to the example shown in the modified example 12, but when it is determined that the heart rate measured by the heart rate measuring unit 304 is abnormal, the switching unit 310 switches the periodic measurement interval of blood pressure to a short time. The configuration may be configured to reduce the amount of power. As an example, until the heart rate measurement unit 304 determines that there is an abnormality in the heart rate, the measurement interval in the blood pressure measurement unit 305 is set to 10 minutes, while the heart rate measurement unit 304 determines that there is an abnormality in the heart rate. In this case, the measurement interval in the blood pressure measurement unit 305 may be switched to a 5-minute interval or the like.

(Modification 14)
In addition, a configuration may be adopted in which pulse wave sensors that are different from each other in measurement method are used (hereinafter referred to as modification 14). The HCU 20 of the modification 14 is similar to the HCU 20 of the first embodiment. When the configuration of the modification 6 is adopted for the modification 14, the HCU 20 of the modification 14 is the same as the HCU 20 a of the modification 6. The wearable device 3b of the modification 14 is the same as the wearable device 3 of the first embodiment except that the measurement related unit 30b is provided instead of the measurement related unit 30. The wearable device 3b also corresponds to the biological information measurement device of the claims.

  Here, the wearable device 3b of the modification 14 will be described with reference to FIG. As shown in FIG. 11, the measurement related unit 30b of the wearable device 3b includes an acceleration sensor 301, a body movement determination unit 302b, a pulse wave sensor 303b, a heart rate measurement unit 304b, a blood pressure measurement unit 305, an abnormality determination unit 306, and an accumulation unit 307. , The state estimation unit 308, the cooperation related unit 309, and the switching unit 310b. The measurement related unit 30b includes a body movement determination unit 302b, a pulse wave sensor 303b, a heart rate measurement unit 304b, and a switching unit 310b instead of the body movement determination unit 302, the pulse wave sensor 303, the heart rate measurement unit 304, and the switching unit 310. Except for the provision point, it is the same as the measurement related unit 30 of the first embodiment.

  The pulse wave sensor 303 b includes a photoelectric pulse wave sensor 3031 and an impedance pulse wave sensor 3032 that have different measurement methods. The photoelectric pulse wave sensor 3031 and the impedance pulse wave sensor 3032 included in the pulse wave sensor 303 b correspond to different sensors. Although the photoelectric pulse wave sensor 3031 has less influence on measurement errors due to body motion than the impedance pulse wave sensor 3032, it consumes more power than the impedance pulse wave sensor 3032.

  The heartbeat measuring unit 304 b includes a first heartbeat measuring unit 3041 and a second heartbeat measuring unit 3042. The first heartbeat measuring unit 3041 measures the heart rate of the user from the volume pulse wave sequentially detected by the photoelectric pulse wave sensor 3031. The second heart rate measurement unit 3042 measures the heart rate of the user from the volume pulse wave sequentially detected by the impedance type pulse wave sensor 3032. Therefore, although the first heartbeat measuring unit 3041 has less influence on the measurement error due to the body movement than the second heartbeat measuring unit 3042, the power consumption required for the measurement is larger than that of the second heartbeat measuring unit 3042.

  The blood pressure measurement unit 305 measures the blood pressure of the user from the plethysmogram sequentially detected by one of the photoelectric pulse wave sensor 3031 and the impedance pulse wave sensor 3032.

  The body movement determination unit 302b determines the body movement of the user based on the acceleration measured by the acceleration sensor 301. As an example, if any of the three axis accelerations is equal to or greater than the first threshold, it is determined that the user's body movement is "large", and any of the three axis accelerations is smaller than the first threshold. If it is less than the threshold value, it is determined that the user has not moved. In addition, although any of the triaxial accelerations is less than the first threshold, if any of the triaxial accelerations is equal to or greater than the second threshold, it is determined that the user's body movement is "small". That is, the body movement determination unit 302b determines the size of the body movement of the user.

  The first threshold may be set to a value that is estimated to exceed the allowable range for measurement errors regardless of whether the photoelectric pulse wave sensor 3031 or the impedance pulse wave sensor 3032 is used. The second threshold value is estimated to fall within an allowable range when the photoelectric pulse wave sensor 3031 is used, but the measurement error is estimated when the impedance pulse wave sensor 3032 is used. The value may be estimated to be beyond the allowable range.

  The switching unit 310 b is the same as the switching unit 310 of the first embodiment except that the switching on / off of the measurement by the heartbeat measuring unit 304 b is switched according to the measurement result of the acceleration sensor 301. The switching unit 310 operates the impedance type pulse wave sensor 3032 with low power consumption by default. In the case where the heart rate is measured by the impedance type pulse wave sensor 3032, if it is determined by the body movement determination unit 302b that there is no body movement based on the acceleration measured by the acceleration sensor 301, the second heart rate measurement The heart rate measured by the unit 3042 is used for later processing. On the other hand, in the case where the heart rate is measured by the impedance type pulse wave sensor 3032 and the body movement determination unit 302b determines that the body movement is "large" or "small", the heart rate measured by the second heart rate measurement unit 3042 Do not use numbers for further processing. When it is determined that the movement is "large" or "small", the switching unit 310b can measure the heart rate periodically even if the state in which the movement is determined to be "small" continues. Instead of the wave sensor 3032, the photoelectric pulse wave sensor 3031 is operated. Then, if it is determined by the body movement determination unit 302b that the body movement is "small", the heart rate measured by the first heart rate measurement unit 3041 is used for the later processing. Then, the photoelectric pulse wave sensor 3031 is used until the body movement is "none". When it is determined that the body movement is "large", the heart rate measured by the first heart rate measurement unit 3041 may not be used for the later process in order to prevent the measurement accuracy from being reduced.

  According to the configuration of the modification 14, the power consumption amount is suppressed by measuring the heart rate using the impedance type pulse wave sensor 3032 which consumes little power by default. On the other hand, in the impedance type pulse wave sensor 3032, the heart rate is measured using the photoelectric pulse wave sensor 3031, which has a small influence on the measurement error due to the body movement, only when the body movement such that the measurement error becomes large is determined. . As described above, it is possible to achieve both the measurement accuracy of the heart rate and the reduction of the power consumption in the wearable device 3b by selectively using the pulse wave sensors whose measurement methods are different.

(Modification 15)
Moreover, while using a photoelectric pulse wave sensor as a pulse wave sensor, it is good also as a structure which switches the color of the light irradiated from a photoelectric pulse wave sensor, and each measures different biological information. Hereinafter, with reference to FIG. 12 and FIG. 13, the configuration for measuring the heart rate, the blood pressure, the respiration rate, and the blood oxygen concentration by switching the color of light irradiated from the photoelectric pulse wave sensor I will explain.

  The HCU 20 of the modification 15 is similar to the HCU 20 of the first embodiment. When the configuration of Modification 6 is adopted for Modification 15, the HCU 20 of Modification 14 is the same as the HCU 20 a of Modification 6. The wearable device 3c of the modification 15 is the same as the wearable device 3 of the first embodiment except that the measurement related unit 30c is provided instead of the measurement related unit 30. The wearable device 3c also corresponds to a living body information measurement device in the claims.

  Here, the wearable device 3c of the modification 15 will be described with reference to FIG. As shown in FIG. 12, the measurement related unit 30c of the wearable device 3c includes an acceleration sensor 301, a body movement determination unit 302, a pulse wave sensor 303c, a heart rate measurement unit 304, a blood pressure measurement unit 305, an abnormality determination unit 306c, and an accumulation unit 307. The state estimation unit 308 c, the cooperation related unit 309, the switching unit 310 c, the respiration measurement unit 311, and the blood oxygen measurement unit 312 are provided. The measurement related unit 30c includes a pulse wave sensor 303c, an abnormality determination unit 306c, a state estimation unit 308c, and a switching unit 310c instead of the pulse wave sensor 303, the abnormality determination unit 306, the state estimation unit 308, and the switching unit 310. The second embodiment is the same as the measurement related unit 30 of the first embodiment except that the second embodiment includes the respiration measurement unit 311 and the blood oxygen measurement unit 312.

  The pulse wave sensor 303c is a photoelectric pulse wave sensor, and includes LEDs of a plurality of colors. The pulse wave sensor 303c can switch and emit light of a plurality of colors in accordance with an instruction from the switching unit 310c. As an example, pulse wave sensor 303c irradiates green light by green LED, irradiates red light by red LED, and gives an example where infrared light is irradiated by infrared LED. Also, as an example, the pulse wave sensor 303 c can switch the sampling rate to, for example, 1 Hz, 20 Hz, and 200 Hz.

  The respiration measurement unit 311 performs fast Fourier transform on the signal of the plethysmogram sequentially detected by the pulse wave sensor 303c, and converts the frequency at which the spectrum is maximum in the 0 to 0.8 Hz interval into the respiration rate as the respiration frequency. Measure the user's breathing rate. The measurement result is output to the abnormality determination unit 306. The respiration measurement unit 311 also corresponds to the measurement unit in the claims.

The blood oxygen measurement unit 312 detects the blood of the user from the ratio of the red light and the infrared light of the reflected light received when the red light and the infrared light are irradiated from the red LED and the infrared light by the pulse wave sensor 303c. Measure the oxygen concentration. In this measurement, there is no big difference in the absorptivity of infrared light between hemoglobin (HbO ₂ ) linked to oxygen and hemoglobin (Hb) which released oxygen, but there is a big difference in absorptivity of red light. We are using. The blood oxygen measurement unit 312 outputs the measurement result to the abnormality determination unit 306. The blood oxygen measurement unit 312 also corresponds to the measurement unit in the claims.

  The abnormality determination unit 306 c determines whether there is an abnormality in the respiration rate measured by the respiration measurement unit 311 and an abnormality in the blood oxygen concentration measured by the blood oxygen measurement unit 312, This is the same as the abnormality determination unit 306 of the first embodiment. Similar to the abnormality determination unit 306 of the first embodiment, the abnormality determination unit 306c may be configured to determine that there is an abnormality when the value of the measurement result exceeds the upper limit value or falls below the lower limit value.

  The state estimation unit 308 c estimates the user state from the measurement results of the heart rate measurement unit 304, the blood pressure measurement unit 305, the respiration measurement unit 311, and the blood oxygen measurement unit 312. The state estimation unit 308 c also corresponds to the user-side estimation unit in the claims. As an example, the user state may be estimated based on the correspondence relationship in which the heart rate, the blood pressure, the respiration rate, and the blood oxygen concentration and the user state are associated in advance. In addition, when there is an abnormality in the predetermined number of biological information of the heart rate, the blood pressure, the respiration rate, and the blood oxygen concentration, the abnormal physical condition may be estimated.

  The switching unit 310c is the same as the switching unit 310 of the first embodiment except that the color of the irradiation light in the pulse wave sensor 303c is switched. For example, when the heart rate measurement unit 304 measures the heart rate, the switching unit 310 c causes the green LED to emit light, and sets the sampling rate of the pulse wave sensor 303 c to 20 Hz. For example, in the case of measuring the blood pressure by the blood pressure measurement unit 305, the green LED is caused to emit light, and the sampling rate of the pulse wave sensor 303c is set to 200 Hz. For example, in the case of measuring the respiration rate in the respiration measurement unit 311, the green LED is caused to emit light, and the sampling rate in the pulse wave sensor 303c is set to 1 Hz. For example, when the blood oxygen concentration measurement is performed by the blood oxygen measurement unit 312, the red LED and the infrared LED are caused to emit light, and the sampling rate in the pulse wave sensor 303c is set to 1 Hz.

  Then, an example of the flow of non-riding time measurement related processing in the wearable device 3c of the modification 15 will be described using the flowchart of FIG. The flowchart of FIG. 13 may be configured to start according to the same conditions as the flowchart of FIG. 5, for example.

  First, the process of step S101 is the same as the process of S1 described above. In S102, the switching unit 310c operates the pulse wave sensor 303c at a sampling rate of 20 Hz. Further, the switching unit 310c causes the green LED of the pulse wave sensor 303c to emit light.

  The process of step S103 to step S107 is the same as the process of S3 to S7. In S103, when the body movement determination unit 302 determines that there is no body movement (YES in S103), the process proceeds to S104. On the other hand, when it is determined that there is body movement (NO in S103), the process proceeds to step S122. In S105, when the abnormality determination unit 306c determines that there is an abnormality in the heart rate measured by the heart rate measurement unit 304 (YES in S105), the process proceeds to step S107. On the other hand, when it is determined that there is no abnormality (NO in S105), the process proceeds to step S106. In S106, when it is the end timing of non-boarding time measurement related processing (YES in S106), the non-boarding time measurement related processing is ended. On the other hand, if it is not the end timing of the non-riding time measurement related process (NO in S106), the process returns to S102 to repeat the process.

  In step S108, the switching unit 310c operates the pulse wave sensor 303c at a sampling rate of 1 Hz. Further, the switching unit 310c causes the green LED of the pulse wave sensor 303c to emit light. In step S109, the switching unit 310c causes the respiration measurement unit 311 to perform measurement, and the respiration measurement unit 311 measures the user's respiration rate based on the volume pulse wave sequentially detected by the pulse wave sensor 303.

  In step S110, when the abnormality determination unit 306c determines that there is an abnormality in the respiration rate measured by the respiration measurement unit 311 (YES in S110), the process proceeds to step S111. On the other hand, when it is determined that there is no abnormality (NO in S110), the process proceeds to step S112. In step S111, the abnormality determination unit 306c causes the accumulation unit 307 to accumulate the respiratory rate (that is, the abnormality measurement value) when it is determined that there is an abnormality in step S110.

  In step S112, the switching unit 310c operates the pulse wave sensor 303c at a sampling rate of 1 Hz. Further, the switching unit 310c causes the red LED and the infrared LED of the pulse wave sensor 303c to emit light. In step S113, the switching unit 310c causes the blood oxygen measurement unit 312 to carry out the measurement, and the blood oxygen measurement unit 312 measures the ratio between the red light and the infrared light of the reflected light sequentially detected by the pulse wave sensor 303. Measure the user's blood oxygen concentration from

  In step S114, if the abnormality determination unit 306c determines that the blood oxygen concentration measured by the blood oxygen measurement unit 312 is abnormal (that is, there is an abnormality in the amount of oxygen inhalation) (YES in S114), the process proceeds to step S115. Move. On the other hand, when it is determined that there is no abnormality (NO in S114), the process proceeds to step S122. In step S115, the abnormality determination unit 306c causes the accumulation unit 307 to accumulate blood oxygen concentration (that is, an abnormality measurement value) when it is determined that there is an abnormality in step S114.

  In step S116, the switching unit 310c operates the pulse wave sensor 303c at a sampling rate of 200 Hz. Further, the switching unit 310c causes the green LED of the pulse wave sensor 303c to emit light. The process of step S117-step S119 is the same as the process of S9-S11. In S118, when the abnormality determination unit 306c determines that there is an abnormality in the blood pressure measured by the blood pressure measurement unit 305 (YES in S118), the process proceeds to step S119. On the other hand, when it is determined that there is no abnormality (NO in S118), the process proceeds to step S122.

  In step S120, the state estimation unit 308c measures the heart rate measurement unit 304, the blood pressure measurement unit 305, and the respiration measurement unit 311, or the heartbeat measurement unit 304, the blood pressure measurement unit 305, the respiration measurement unit 311, and blood oxygen The user state is estimated from the measurement result of the measurement unit 312.

  In step S121, the presentation unit 34 performs presentation according to the user state estimated by the state estimation unit 308c. In the non-riding time measurement related process, according to the operation input received by the operation input unit 32, the measurement results of the heart rate measurement unit 304, the blood pressure measurement unit 305, the respiration measurement unit 311, and the blood oxygen measurement unit 312 It may be a configuration to be presented. In addition, it may be configured to present abnormal measurement values in the heart rate measurement unit 304, the blood pressure measurement unit 305, the respiration measurement unit 311, and the blood oxygen measurement unit 312 each time the abnormality determination unit 306c determines that there is an abnormality.

  In step S122, when it is the end timing of the non-riding time measurement related processing (YES in S122), the non-riding time measurement related processing is ended. On the other hand, if it is not the end timing of the non-riding time measurement related process (NO in S122), the process returns to S103 to repeat the process.

  The switching unit 310 c is not limited to the timing shown in the flowchart of FIG. 13, and the switching unit 310 c may use the blood pressure measurement unit 305, the respiration measurement unit 311, and the blood oxygen measurement unit 312 according to the operation input received by the operation input unit 32. It is good also as composition which changes the measurement execution existence.

  For the on-the-fly measurement related processing in the wearable device 3c of the modification 15, for example, the same change as the change shown in the flowchart of FIG. 13 with respect to the flowchart of FIG. 5 of the first embodiment is performed on the flowchart of FIG. The process may be the same as that described above.

  According to the configuration of the modification 15, by switching the color of the LED to be emitted by the pulse wave sensor 303c by the switching unit 310c, a single pulse wave sensor 303c even if it is biological information with different colors of light suitable for measurement. It is possible to measure using For example, measurement of blood oxygen concentration that requires red light and infrared light, and measurement of heart rate, blood pressure, and respiration rate, which are preferably green light, can be performed using a single pulse wave sensor 303c. .

(Modification 16)
In addition, the color of light emitted from the photoelectric pulse wave sensor is switched to measure the heart rate, the blood pressure, the respiration rate, and the blood oxygen concentration to estimate the risk of the user's sleep apnea syndrome (hereinafter referred to as A modification 16) will be described with reference to FIG.

  Here, the wearable device 3c of the modification 16 will be described. The wearable device 3c of the modification 16 is the same as the modification 15 of the modification 15 shown in FIG. 12 except that the state estimation unit 308c estimates the sleep state of the user and the risk of sleep apnea syndrome. It is similar to the wearable device 3c.

  Subsequently, an example of the flow of processing (hereinafter, processing related to sleep apnea syndrome) related to diagnosis of sleep apnea syndrome in the wearable device 3c of the modification 16 will be described using the flowchart of FIG. . The sleep apnea syndrome related process may be configured to be performed instead of the above-mentioned non-boarding measurement related process, or the above non-boarding measurement related process by the operation input from the user to the operation input unit 32 May be selected and implemented.

  In the case where the flowchart of FIG. 14 is configured to be executed instead of the above-described non-riding time measurement related processing, for example, it may be configured to start according to the same conditions as the flowchart of FIG. On the other hand, in the case where it is configured to be selected and implemented from the above-mentioned non-riding measurement related processing by the operation input from the user to the operation input unit 32, the implementation of the sleep apnea syndrome related processing is selected. It may be configured to start when the cooperation related unit 309 does not detect that the wearable device 3c is located in the vehicle compartment.

  First, the process of step S131 to step S133 is the same as the process of S101 to S103 described above. In step S134, the state estimation unit 308c estimates the sleep state of the user. As an example, based on the acceleration generated by the user and the correspondence relationship in which the heart rate is associated with the awake state, for example, “awake”, “awake”, from the acceleration measured by the acceleration sensor 301 and the heart rate measured in S133. Estimate awakening state such as "sleepiness start" and "sleep".

  In step S135, when the awake state estimated in S134 is a sleep state (YES in S135), the process proceeds to step S137. On the other hand, when not in the sleep state (NO in S135), the process proceeds to step S136. In S136, when it is the end timing of sleep apnea syndrome related processing (YES in S136), the sleep apnea syndrome related processing is ended. On the other hand, when it is not the end timing of sleep apnea syndrome related processing (NO in S136), the processing returns to S132 and is repeated. As an example of the end timing of sleep apnea syndrome related processing, there is the fact that the cooperation related unit 309 detects that the power of the wearable device 3c is turned off, that the wearable device 3c is located in the vehicle compartment, etc. .

  The process of step S137-step S139 is the same as the process of S108-S110 mentioned above. In S110, when the abnormality determination unit 306c determines that there is an abnormality in the respiration rate measured by the respiration measurement unit 311 (YES in S139), the process proceeds to step S140. On the other hand, when it is determined that there is no abnormality (NO in S139), the process proceeds to step S136. In S142, when the respiratory rate falls below the lower limit value, it may be determined that there is an abnormality.

  The process of step S140 to step S142 is the same as the process of S112 to S114 described above. In S142, when the abnormality determination unit 306c determines that the blood oxygen concentration measured by the blood oxygen measurement unit 312 is abnormal (YES in S142), the process proceeds to step S143. On the other hand, when it is determined that there is no abnormality (NO in S142), the process proceeds to step S149. In step S143, the abnormality determination unit 306c causes the accumulation unit 307 to accumulate blood oxygen concentration (that is, an abnormality measurement value) when it is determined that there is an abnormality in S142. In S143, the abnormality determination unit 306c may be configured to accumulate the respiration rate when it is determined that there is an abnormality in S139 in the accumulation unit 307 as an abnormality measurement value.

  The process of step S144-step S145 is the same as the process of S116-S117 mentioned above. In step S146, based on the state estimation unit 308c having abnormality in the heart rate, respiration rate, and blood oxygen concentration, and the measurement result in the blood pressure measurement unit 305 in S145, during sleep of the user Estimate the risk of apnea syndrome. It is known that sleep apnea syndrome and hypertension are associated with high probability. Therefore, the risk may be estimated to be high as the value of blood pressure increases.

  In step S147, when the degree of risk estimated in step S146 is equal to or higher than the threshold (YES in step S147), it is estimated that there is a risk of sleep apnea syndrome. On the other hand, when it is below the threshold (NO in S147), it is estimated that there is no risk of sleep apnea syndrome. The threshold referred to here may be a value that is estimated to be likely to be sleep apnea syndrome.

  In step S148, the presentation unit 34 presents information indicating that there is a risk of sleep apnea syndrome. The information presentation may be performed according to the operation input received by the operation input unit 32.

  In step S149, when it is the end timing of the sleep apnea syndrome related process (YES in S149), the sleep apnea syndrome related process is ended. On the other hand, when it is not the end timing of sleep apnea syndrome related processing (NO in S149), the process returns to S133 to repeat the processing. According to the configuration of modification 16, it is possible to diagnose sleep apnea syndrome.

Second Embodiment
In the first embodiment, the configuration to switch on / off the measurement of biological information with large power consumption is shown based on the biological information with small power consumption, but this is not necessarily the case. For example, with regard to the measurement of the same biological information, the measurement interval of the biological information may be switched according to the presence or absence of abnormality of the measured biological information (hereinafter, referred to as the second embodiment).

  The HCU 20 of the second embodiment is similar to the HCU 20 of the first embodiment. When the configuration of the sixth modification is adopted in the second embodiment, the HCU 20 of the second embodiment is the same as the HCU 20 a of the sixth modification. The wearable device 3d according to the second embodiment includes a measurement related unit 30d instead of the measurement related unit 30, a default measurement interval of heart rate and blood pressure by default, and non-boarding measurement related The wearable device 3 of the first embodiment is the same as the wearable device 3 of the first embodiment except that some of the processing and the processing related to boarding measurement are different. The wearable device 3d also corresponds to a living body information measurement device in the claims.

  Here, the wearable device 3d according to the second embodiment will be described with reference to FIG. As shown in FIG. 15, the measurement related unit 30d of the wearable device 3d includes an acceleration sensor 301, a body movement determination unit 302, a pulse wave sensor 303, a heart rate measurement unit 304, a blood pressure measurement unit 305, an abnormality determination unit 306, and an accumulation unit 307. , A state estimation unit 308, a cooperation related unit 309, and a switching unit 310d. The measurement related unit 30d is the same as the measurement related unit 30 of the first embodiment except that the measurement related unit 30d includes a switching unit 310d instead of the switching unit 310.

  Subsequently, an example of the flow of non-riding time measurement related processing in the wearable device 3d of the second embodiment will be described using the flowchart of FIG. The flowchart of FIG. 16 may be configured to start according to, for example, the same conditions as the flowchart of FIG. 5.

  First, in step S161, the switching unit 310d operates the pulse wave sensor 303 at a low cycle. For example, it operates at a sampling rate of 20 Hz. In step S162, the switching unit 310d activates the acceleration sensor 301.

  The process of step S163 is the same as the process of S3 described above. In S163, when the body movement determination unit 302 determines that there is no body movement of the user (YES in S163), the process proceeds to step S164. On the other hand, when it is determined that there is body movement (NO in S163), the process moves to step S179.

  The process of step S164 is the same as the process of S84 described above. In S164, when it is a regular measurement timing of the heart rate (YES in S164), the process proceeds to step S165. On the other hand, if it is not the regular measurement timing of the heart rate (NO in S164), the process proceeds to step S179. The default measurement interval of the heart rate is, for example, 5 minutes.

  The process of step S165-step S166 is the same as the process of above-mentioned S4-S5. In S166, when the abnormality determination unit 306 determines that there is an abnormality in the heart rate measured by the heart rate measurement unit 304 (YES in S166), the process proceeds to step S167, and the heart rate when it is determined that there is an abnormality (that is, The abnormality measurement value is accumulated in the accumulation unit 307. On the other hand, when it is determined that there is no abnormality (NO in S166), the process proceeds to step S170.

  In step S168 following S167, the switching unit 310d switches the periodic measurement interval of the heart rate in the heart rate measurement unit 304 to a short time. As an example, what is an interval of 5 minutes may be switched to an interval of 1 second. In step S169, the switching unit 310d switches the periodic measurement interval of blood pressure in the blood pressure measurement unit 305 to a short time. As an example, what was an interval of 10 minutes may be switched to an interval of 10 seconds. Then, the process proceeds to step S174.

  In step S170, which is performed when it is determined that there is no abnormality in the heart rate in S166, if the periodic measurement interval of the heart rate is switched to be shorter than the default, the periodic measurement interval of the heart rate is returned to the default. That is, in the example of the present embodiment, the interval is returned to five minutes.

  The process of step S171 is the same as the process of S87 described above. In S171, when it is the regular measurement timing of blood pressure (YES in S171), the process proceeds to step S172. On the other hand, when it is not the regular measurement timing of blood pressure (NO in S171), the process returns to step S162 and the process is repeated. The default regular blood pressure measurement interval is, for example, 10 minutes. When it is determined that there is an abnormality in the heart rate, the blood pressure may be measured immediately even if it is not the regular measurement timing of the blood pressure.

  The process of step S172-step S174 is the same as the process of above-mentioned S8-S10. In S174, when the abnormality determination unit 306 determines that there is an abnormality in the heart rate measured by the blood pressure measurement unit 305 (YES in S174), the process proceeds to step S176, and the heart rate when it is determined that there is an abnormality (that is, The abnormality measurement value is accumulated in the accumulation unit 307. On the other hand, when it is determined that there is no abnormality (NO in S174), the process proceeds to step S175.

  In step S170, when the periodic measurement interval of blood pressure is switched to be shorter than the default, the periodic measurement interval of blood pressure is returned to the default. That is, in the example of the present embodiment, the interval is returned to 10 minutes. Then, the process proceeds to step S179.

  The process of step S176 to step S179 is the same as the process of the above-mentioned S11 to S14. In S179, when it is the end timing of the non-boarding time measurement related process (YES in S179), the non-boarding time measurement related process is ended. On the other hand, if it is not the end timing of the non-riding time measurement related process (NO in S179), the process returns to S163 to repeat the process. Note that the switching unit 310d switches so that the heart rate measurement unit 304 and the blood pressure measurement unit 305 perform measurement according to the operation input received by the operation input unit 32, not limited to the timing illustrated in the flowchart of FIG. It is good also as composition.

  For the on-board measurement-related processing in the wearable device 3d of the second embodiment, for example, the same change as the change shown in the flowchart of FIG. 15 with respect to the flowchart of FIG. 5 of the first embodiment is performed on the flowchart of FIG. The process may be the same as that described above.

  According to the configuration of the second embodiment, in the wearable device 3d, when the measurement result of the heart rate in the heart rate measurement unit 304 indicates an abnormality, the heart rate measurement interval in the heart rate measurement unit 304 is switched to be short. Further, even if the blood pressure measurement interval in the blood pressure measurement unit 305 is shortened than the default, if the blood pressure measurement result in the blood pressure measurement unit 305 does not indicate an abnormality, the shortened measurement interval is defaulted. Back to. Therefore, as compared with the configuration in which the measurement interval of biological information such as the heart rate and the blood pressure is not switched short, it is possible to reduce the power consumption in the wearable device 3d by the amount of reducing the frequency of performing the measurement. In addition, since the measurement interval is switched to be short when there is an abnormality in the biological information such as the heart rate and blood pressure, the power consumption is measured while measuring the biological information while narrowing down the timing at which the biological information needs to be measured. It becomes possible to suppress.

  In addition, also about the structure of Embodiment 2, the modification similar to having shown to the modifications 1-2, 4-11, and 14-16 is employable. In the second embodiment, the measurement interval of the heart rate and blood pressure is switched to be short as one example. However, the present invention is not necessarily limited thereto, and can be applied to measurement of biological information other than the heart rate and blood pressure.

(Embodiment 3)
Moreover, in Embodiment 1, although HCU 20 showed the structure which instruct | indicates measurement execution of the biometric information in the wearable device 3, it does not necessarily restrict to this. For example, the HCU 20 may instruct to stop the measurement of the biological information in the wearable device 3 (hereinafter, the third embodiment).

  First, the vehicle side unit 2 of the third embodiment will be described. The vehicle side unit 2 of the third embodiment is the same as the vehicle side unit 2 of the first embodiment except that the HCU 20 e is provided instead of the HCU 20.

  Here, the HCU 20 e of the third embodiment will be described with reference to FIG. As shown in FIG. 17, the HCU 20 e includes a driver state estimation unit 201, a presentation control unit 202, a cooperation status detection unit 203, a request transmission unit 204 e, and a suitability determination unit 205. The HCU 20 e is the same as the HCU 20 of the first embodiment except that the HCU 20 e includes the request transmitting unit 204 e instead of the request transmitting unit 204 and includes the adequacy determining unit 205.

  The appropriateness determination unit 205 measures biological information with the wearable device 3e based on vehicle information related to the behavior of the vehicle, for example, detection signals output from sensors such as a steering angle sensor, a vehicle speed sensor, and an acceleration sensor. It is determined whether it is a suitable timing. For example, based on the vehicle information, the suitability determination unit 205 determines that the situation in which the driver is estimated to be strained is a timing that is not suitable for measuring the biological information. On the other hand, the situation where it is estimated that the driver is not forced to tension is determined as the timing suitable for measuring the biological information.

  The situation in which it is estimated that the driver is forced is, for example, a situation in which the heart rate, blood pressure or the like is increased due to the tension although the physical condition is not abnormal. One example is travel of a sharp curve where the steering angle detected by the steering angle sensor is equal to or greater than a threshold.

  A timing suitable for measuring biological information from the detection result of the surrounding area monitoring sensor that detects an obstacle around the vehicle HV, a traveling division line, etc., information on the traveling position of the vehicle HV specified by the locator, etc. It may be configured to determine whether or not. For example, it is determined that passing through a toll gate on a freeway, merging on a freeway main line, etc. are timings that are not suitable for measuring biological information, etc. Just do it. The vehicle information on the behavior of the vehicle, the detection result of the surrounding area monitoring sensor, the information on the traveling position and the like correspond to the information on the traveling situation in claims.

  The request transmission unit 204e transmits a cancellation request for requesting to stop the measurement of biological information in the wearable device 3e, and transmits a start request and a cancellation request according to the determination result of the suitability determination unit 205. Except for the above, it is the same as the request transmission unit 204 of the first embodiment. As an example, when the request transmission unit 204e determines that the suitability determination unit 205 determines that the timing is not suitable for measuring the biological information, the request transmission unit 204e transmits a cancellation request to stop the measurement in the biological information measurement device. On the other hand, when it is determined by the suitability determination unit 205 that the timing is suitable for measuring the biological information, the start request is transmitted, and the measurement in the wearable device 3e is started.

  The request transmission unit 204e may be configured to specify a target for which measurement is to be stopped for each biological information and to stop the measurement. For example, a cancellation request specifying measurement of the blood pressure among the acceleration measured by the acceleration sensor 301, the heart rate measured by the heart rate measuring unit 304, and the blood pressure measured by the blood pressure measuring unit 305 is transmitted, and only the blood pressure measurement is stopped. It may be done. Further, the measurement of all the biological information in the wearable device 3e may be stopped in response to the cancellation request. The same applies to the start request.

  Subsequently, the wearable device 3e of the third embodiment is the same as the wearable device 3 of the first embodiment except that the measurement related unit 30e is provided instead of the measurement related unit 30. The wearable device 3e also corresponds to a living body information measurement device in the claims.

  Here, the wearable device 3e of the third embodiment will be described with reference to FIG. As shown in FIG. 18, the measurement related unit 30e of the wearable device 3e includes an acceleration sensor 301, a body movement determination unit 302, a pulse wave sensor 303, a heart rate measurement unit 304, a blood pressure measurement unit 305, an abnormality determination unit 306, and an accumulation unit 307. , The state estimation unit 308, the cooperation related unit 309, and the switching unit 310e. The measurement related unit 30 e is the same as the measurement related unit 30 of the first embodiment except that the measurement related unit 30 e includes a switching unit 310 e instead of the switching unit 310.

  The switching unit 310e is the first embodiment, except that switching of the measurement execution status in the acceleration sensor 301, the heart rate measurement unit 304, and the blood pressure measurement unit 305 is partially different according to the detection result in the cooperation related unit 309. Is the same as the switching unit 310 of FIG.

  The switching unit 310e performs the following process in a situation where the cooperation related unit 309 detects that the wearable device 3e is located in the vehicle interior of the vehicle HV. Specifically, when the start request is received by the communication unit 33, measurement of the biometric information of the user is started, and when the cancellation request is received by the communication unit 33, the measurement of the user's biometric information is stopped. As a result, the measurement of the user's biological information is performed only for the period instructed by the start request and the stop request from the HCU 20 e.

  According to the configuration of the third embodiment, in a situation where it is detected that the wearable device 3e is located in the compartment of the vehicle HV, measurement of biological information at a timing not suitable for measuring biological information Is canceled by the cancellation request. Therefore, it becomes possible to stop the measurement of the biological information at the timing which is not suitable for measuring biological information, and to prevent the erroneous estimation of the user state. In addition, it is possible to reduce the amount of power consumption in the wearable device 3e by reducing the frequency of measurement of biological information.

  In addition, also about the structure of Embodiment 3, the modification similar to what was shown to the modifications 1-10, 12-16 is employable.

(Modification 17)
In the first to third embodiments described above, the configuration in which the measurement execution status of the biological information can be switched according to the operation input received by the operation input unit 32 is shown, but the present invention is not necessarily limited thereto. For example, it may be configured not to switch on / off of measurement of biological information according to the operation input received by the operation input unit 32.

(Modification 18)
In addition, wearable devices are transmitted by sending measurement results of biological information from the wearable devices 3, 3b, 3c, 3d, 3e or HCUs 20, 20a, 20e to the server, and estimating the user state based on the measurement results on the server side. The power consumption at 3, 3b, 3c, 3d, 3e may be reduced.

(Modification 19)
Although the above-described Embodiments 1 to 3 and Modification 14 show a configuration in which the body movement determination unit 302, 302b determines the body movement of the user based on the acceleration measured by the acceleration sensor 301, it is not always necessary to Not exclusively. For example, not only the acceleration measured by the acceleration sensor 301 but also the acceleration generated in the vehicle HV may be used to determine the body movement of the user.

  It is conceivable that the acceleration measured by the acceleration sensor 301 is influenced by the traveling of the vehicle HV, that is, the acceleration of the vehicle HV. Therefore, when the body movement is determined only by the acceleration measured by the acceleration sensor 301, an erroneous determination of the body movement of the user may occur due to the influence of the acceleration generated in the vehicle HV. Therefore, it is preferable to determine the movement of the user in consideration of not only the acceleration measured by the acceleration sensor 301 but also the acceleration generated in the vehicle HV. As an example, after subtracting the acceleration generated in the vehicle HV from the acceleration measured by the acceleration sensor 301, the body movement of the user is determined by excluding the influence of the acceleration generated in the vehicle HV by determining the body movement of the user. It may be determined etc. According to this, it is possible to more accurately determine the body movement of the user.

  In this case, the acceleration generated in the vehicle HV may be determined from the detection signal output from the acceleration sensor of the vehicle HV by the body movement determination unit 302 or 302b, or the detection signal output from the vehicle speed sensor of the vehicle HV It is good also as composition determined by differentiating the vehicle speed determined from. The detection signal output from the acceleration sensor and the detection signal output from the vehicle speed sensor correspond to acceleration determination information in claims. In addition, the detection signals transmitted from the HCU 20, 20a, 20e via the short distance communication device 21 may be acquired by the body movement determination unit 302, 302b via the communication unit 33. .

  The present invention is not limited to the above-described embodiment and modifications, and various modifications can be made within the scope of the claims, and technical means disclosed in different embodiments and modifications, respectively. An embodiment obtained by appropriately combining the above is also included in the technical scope of the present invention.

Reference Signs List 1 living body information measurement system, 2 vehicle side unit, 3, 3b, 3c, 3d, 3e wearable device (living body information measuring device) 20, 20a, 20e HCU (vehicle-mounted device), 23 driver monitor camera (vehicle-side sensor) 32 operation input unit, 33 communication unit, 201, 201a driver state estimation unit (vehicle side estimation unit), 204, 204e request transmission unit, 205 suitability determination unit, 301 acceleration sensor (measurement unit, acceleration measurement unit), 302, 302b Body movement determination unit, 303, 303c pulse wave sensor, 303b pulse wave sensor (sensor), 304, 304b heart rate measurement unit (measurement unit), 305 blood pressure measurement unit (measurement unit), 307 accumulation unit, 308, 308c state estimation unit (User side estimation unit), 310, 310c, 310d, 310e switching unit, 311 respiration measurement unit (measurement unit , 312 blood oxygen measurement unit (measurement unit), 3031 photoelectric pulse wave sensor (sensor), 3032 impedance pulse wave sensor (sensor), 3041 first heartbeat measurement unit, 3042 second heartbeat measurement unit

Claims (23)

A biological information measuring apparatus comprising a measuring unit (301, 304, 304b, 305, 311, 312) mounted on a user and used to measure the biological information of the user,
The measurement unit can measure a plurality of pieces of biological information, each of which has different power consumption required for measurement.
The measurement unit includes at least a heartbeat measurement unit (304, 304b) that measures the heart rate of the user, and a blood pressure measurement unit (305) that measures the blood pressure of the user.
When the measurement result obtained by measuring the biological information smaller in power consumption required for measurement by the measurement unit (301, 304, 304b) indicates an abnormality, the measurement part (304 for biological information larger in power consumption required for measurement) , 304b, 305 measure to switch to implement in), or a provided with a short switching switch unit measurement interval in the measuring unit (310,310C),
The heart rate measurement unit consumes less power than the blood pressure measurement unit.
The switching unit, when the heart rate measured by the heart rate measuring unit indicates an abnormal, switch to perform the measurement at the blood pressure measurement unit, or Ru short switching the measurement interval in the blood pressure measuring unit Biological information measuring device. Oite to claim 1,
As the measurement unit, an acceleration measurement unit (301) that measures the acceleration generated to the user, and a first heartbeat measurement unit (3041) that measures the heart rate of the user using sensors (3031, 3032) with different measurement methods. And a second heartbeat measurement unit (3042) at least
The acceleration measurement unit is smaller in power consumption required for measurement than the first heartbeat measurement unit and the second heartbeat measurement unit.
The first heartbeat measuring unit has a larger influence on the measurement error due to the user's body movement than the second heartbeat measuring unit, but consumes less power than the second heartbeat measuring unit.
The switching unit is a biological information measuring device that switches which of the first heartbeat measuring unit and the second heartbeat measuring unit performs the measurement based on the acceleration measured by the acceleration measuring unit. A biological information measuring apparatus comprising a measuring unit (301, 304, 304b, 305, 311, 312) mounted on a user and used to measure the biological information of the user,
The measurement unit can measure a plurality of pieces of biological information, each of which has different power consumption required for measurement.
The measuring unit (304, 304b, 304b, 304b, 304b, 304b, and 304b of biological information having a larger power consumption required for measurement based on the measurement result obtained by measuring the biological information having a smaller power consumption required for measurement by the measuring unit (301, 304, 304b) A switching unit (310, 310c) for switching the presence or absence of measurement execution in 305) or the measurement interval ;
A vehicle-mounted device (20) used in the vehicle and a communication unit (33) for exchanging information by wireless communication;
The vehicle-mounted device detects an abnormal driving condition of the user from information on the behavior of the vehicle, and transmits the detected abnormal driving condition.
The switching unit, when the communication unit receives the operating condition abnormality transmitted from the vehicle-mounted device, the power consumption required for measurement is larger among a plurality of pieces of biological information for which the power consumption required for measurement is different. wherein either switch to implement the measurement in the measurement portion, or toggle its biological information measuring device short measurement interval in the measurement of the biological information. Oite to claim 3,
As the measurement unit, an acceleration measurement unit (301) that measures the acceleration generated to the user, and a first heartbeat measurement unit (3041) that measures the heart rate of the user using sensors (3031, 3032) with different measurement methods. And a second heartbeat measurement unit (3042) at least
The acceleration measurement unit is smaller in power consumption required for measurement than the first heartbeat measurement unit and the second heartbeat measurement unit.
The first heartbeat measuring unit has a larger influence on the measurement error due to the user's body movement than the second heartbeat measuring unit, but consumes less power than the second heartbeat measuring unit.
The switching unit is a biological information measuring device that switches which of the first heartbeat measuring unit and the second heartbeat measuring unit performs the measurement based on the acceleration measured by the acceleration measuring unit. A biological information measuring apparatus comprising a measuring unit (301, 304, 304b, 305, 311, 312) mounted on a user and used to measure the biological information of the user,
The measurement unit can measure a plurality of pieces of biological information, each of which has different power consumption required for measurement.
The measuring unit (304, 304b, 304b, 304b, 304b, 304b, and 304b of biological information having a larger power consumption required for measurement based on the measurement result obtained by measuring the biological information having a smaller power consumption required for measurement by the measuring unit (301, 304, 304b) A switching unit (310, 310c) for switching the measurement execution status or measurement interval in 305) ,
As the measurement unit, an acceleration measurement unit (301) that measures the acceleration generated to the user, and a first heartbeat measurement unit (3041) that measures the heart rate of the user using sensors (3031, 3032) with different measurement methods. And a second heartbeat measurement unit (3042) at least
The acceleration measurement unit is smaller in power consumption required for measurement than the first heartbeat measurement unit and the second heartbeat measurement unit.
The first heartbeat measuring unit has a larger influence on the measurement error due to the user's body movement than the second heartbeat measuring unit, but consumes less power than the second heartbeat measuring unit.
The switching unit, the acceleration based on the acceleration measured by the measuring unit, the first heart rate measuring unit and the toggle its biological information measuring device either in or out the measurement of the second heartbeat measuring section.
Oite to claim 5,
A biological information measuring device comprising a communication unit (33) that exchanges information with a vehicle-mounted device (20) used in a vehicle by wireless communication. In claim 6 ,
The measurement unit includes at least an acceleration measurement unit (301) that measures an acceleration generated on the user,
The communication unit is configured to receive, from the on-vehicle device, acceleration determination information capable of determining an acceleration generated in the vehicle.
The motion of the user based on the acceleration generated in the user measured by the acceleration measurement unit and the acceleration generated in the vehicle determined from the acceleration determination information received by the communication unit from the vehicle-mounted device The biological information measuring device provided with the body movement judgment part (302, 302b) which determines. In any one of claims 5 to 7 ,
A communication unit (33) that exchanges information with a vehicle-mounted device (20) used in a vehicle by wireless communication;
The vehicle-mounted device detects an abnormal driving condition of the user from information on the behavior of the vehicle, and transmits the detected abnormal driving condition.
The switching unit, when the communication unit receives the operating condition abnormality transmitted from the vehicle-mounted device, the power consumption required for measurement is larger among a plurality of pieces of biological information for which the power consumption required for measurement is different. A biological information measuring device, wherein switching is performed so as to perform measurement of biological information in the measuring unit, or switching of a measurement interval in the measuring unit is short. In any one of claims 3 to 8 ,
The switching unit measures the biological information having a larger power consumption required for measurement by the measuring unit when the measurement result obtained by measuring the biological information having a smaller power consumption required for measurement indicates an abnormality. The biological information measuring device which switches to carry out, or switches the measurement interval in the measurement part short. In claim 9 ,
The measurement unit includes at least a heartbeat measurement unit (304, 304b) that measures the heart rate of the user, and a blood pressure measurement unit (305) that measures the blood pressure of the user.
The heart rate measurement unit consumes less power than the blood pressure measurement unit.
When the heart rate measured by the heart rate measuring unit shows an abnormality, the switching unit switches to perform the measurement by the blood pressure measuring unit, or switches the measurement interval at the blood pressure measuring unit to be short. Information measuring device. In any one of claims 1 to 10 ,
The blood pressure measurement unit periodically measures the blood pressure of the user at a cycle longer than a cycle at which the heart rate measurement unit measures the heart rate of the user.
The switching unit performs the measurement by the blood pressure measurement unit even when it is not the timing at which the blood pressure measurement unit periodically measures the blood pressure when the heart rate measured by the heart rate measurement unit indicates an abnormality. To switch biological information measuring device. In any one of claims 1 to 11 ,
The measurement unit includes at least an acceleration measurement unit (301) configured to measure an acceleration generated on the user, and a heart rate measurement unit (304, 304b) configured to measure a heart rate of the user.
The acceleration measurement unit consumes less power than the heart rate measurement unit.
The switching unit is a biological information measurement device that switches whether or not measurement is performed by the heart rate measurement unit based on the acceleration measured by the acceleration measurement unit. In any one of claims 1 to 12 ,
It further comprises an operation input unit (32) for receiving an operation input from the user,
The biological information measuring apparatus according to claim 1, wherein the switching unit is capable of switching any of measurement execution and measurement intervals in the measurement unit according to an operation input received by the operation input unit. In any one of claims 1 to 13 ,
The measurement unit measures biological information of the user using at least a photoelectric pulse wave sensor (303c) that receives the reflected light of the light irradiated to the user, and the single pulse wave A biological information measurement device that measures the different types of biological information by switching the color of light emitted from a sensor. A biological information measuring apparatus comprising a measuring unit (304, 305) mounted on a user and used and measuring biological information of the user,
A switching unit (310d) that switches the measurement interval of the biological information in the measurement unit to a short interval when the measurement result of the biological information of the user measured by the measurement unit indicates an abnormality;
A vehicle-mounted device (20) used in the vehicle and a communication unit (33) for exchanging information by wireless communication;
The measurement unit includes at least an acceleration measurement unit (301) that measures an acceleration generated on the user,
The communication unit is configured to receive, from the on-vehicle device, acceleration determination information capable of determining an acceleration generated in the vehicle.
The motion of the user based on the acceleration generated in the user measured by the acceleration measurement unit and the acceleration generated in the vehicle determined from the acceleration determination information received by the communication unit from the vehicle-mounted device The biological information measuring device provided with the body movement judgment part (302, 302b) which determines . According to claim 6, 1 5 any one of,
The vehicle-mounted device estimates the driving state of the user based on the measurement result of the measurement unit.
The said communication part is a biometric information measuring device which transmits the measurement result in the said measurement part to the said vehicle-mounted device. According to claim 6, 1 5 any one of,
A user side estimation unit (308, 308c) configured to estimate the driving state of the user based on the measurement result of the measurement unit;
The vehicle-mounted device is configured to make a presentation based on the driving state estimated by the user-side estimation unit.
The said communication part is a biometric information measuring device which transmits the said driving state estimated by the said user side estimation part to the said vehicle-mounted device. In any one of claims 6, 7 , 15, 16 and 17 ,
Among the measurement results of the measurement unit, an accumulation unit (307) is provided for accumulating the measurement result indicating abnormality.
The communication unit transmits the measurement result indicating an abnormality, which is stored in the storage unit, to the in-vehicle device, when it is detected that the own device has come to be positioned in the vehicle cabin of the vehicle. Biological information measuring device. In any one of claims 6, 7, 15, 16 and 17,
The vehicle-mounted device transmits a start request requesting to start measurement in the measurement unit,
The measuring unit is configured to receive the start request transmitted from the on-board unit by the communication unit in a situation where it is detected that the own device is located in a vehicle compartment of the vehicle. When the communication unit receives the start request transmitted from the vehicle-mounted device while the measurement of biological information is not started, the measurement of biological information of the user is started, and the measurement can be performed. Measuring device. A vehicle-mounted device that is used in a vehicle and exchanges information with a biological information measuring device (3, 3b, 3c, 3d, 3e) attached to a user and measuring the biological information of the user by wireless communication,
The biological information measuring apparatus does not autonomously start measurement of the biological information of the user in a situation where it is detected that the biological information measuring apparatus is positioned in a vehicle compartment of the vehicle.
A request transmitting unit (204, 204e) for transmitting to the biological information measuring apparatus a start request for requesting start of measurement in the biological information measuring apparatus ;
A vehicle-side estimation unit (201) capable of estimating the same type of driving condition as the user's driving condition that can be estimated using the biological information measured by the biological information measuring device using the vehicle-side sensor (23) used in the vehicle And) ,
The request transmission unit (204) sends the start request to the biological information measurement device when the vehicle state estimation unit can not estimate the driving state using the vehicle sensor. It transmits and starts measurement in the biological information measuring device,
In a situation where it is detected that the living body information measuring device is located in a vehicle compartment of the vehicle, the measurement of the living body information measuring device is not started by not transmitting the start request from the request transmission unit, A vehicle-mounted device for starting measurement by the biological information measuring apparatus by transmitting the start request from a request transmission unit. A vehicle-mounted device that is used in a vehicle and exchanges information with a biological information measuring device (3, 3b, 3c, 3d, 3e) attached to a user and measuring the biological information of the user by wireless communication,
The biological information measuring apparatus does not autonomously start measurement of the biological information of the user in a situation where it is detected that the biological information measuring apparatus is positioned in a vehicle compartment of the vehicle.
And a request transmission unit (204, 204e) for transmitting a start request to start measurement in the biological information measurement device to the biological information measurement device,
The request transmission unit (204e) can also transmit a cancellation request for requesting to stop the measurement in the biological information measurement device,
It comprises an appropriateness determination unit (205) that determines whether it is a timing suitable for measuring biological information by the biological information measuring device based on the information on the traveling condition of the vehicle.
When the request transmission unit determines that the timing is not suitable at the appropriateness determination unit, the request transmission unit transmits the cancellation request to stop the measurement at the biological information measuring device, while the appropriateness determination unit is suitable. When the timing is determined, the start request is transmitted to start measurement by the biological information measuring device,
In a situation where it is detected that the living body information measuring device is located in a vehicle compartment of the vehicle, the measurement of the living body information measuring device is not started by not transmitting the start request from the request transmission unit, A vehicle-mounted device for starting measurement by the biological information measuring apparatus by transmitting the start request from a request transmission unit. In claim 21 ,
A vehicle-side estimation unit (201) capable of estimating the same type of driving condition as the user's driving condition that can be estimated using the biological information measured by the biological information measuring device using the vehicle-side sensor (23) used in the vehicle Equipped with
The request transmission unit (204) sends the start request to the biological information measurement device when the vehicle state estimation unit can not estimate the driving state using the vehicle sensor. An on-vehicle device that transmits and starts measurement with the biological information measurement device. Claim 6,7,15,16,17,18, biological information measuring apparatus of any one of 1 9 and (3,3b, 3c, 3 d) ,
A biological information measurement system, comprising: an in-vehicle device (20, 20a, 20e) that exchanges information by wireless communication with the biological information measurement device.

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