JP3268697B2 - Biological information transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to biological information having a data transmitting section for transmitting measurement data such as a blood pressure value, a pulse rate and a measurement time and related information such as a patient identification number to an external data processing section. The present invention relates to a transmission device. Specifically, the present invention relates to a biological information transmission device including a single measurement unit having a data measurement function and a data processing device optically coupled to the measurement unit.

[0002]

2. Description of the Related Art Conventionally, in the case of two-way communication, two sets of PTs are used.
(Photodiode) and LED (Light Emitting Diode) pair, and in order to remove the influence of extraneous light, etc., a mode is set by sending a predetermined code using an optical modulation method, For example, using a detection mechanism such as a reed switch or a mechanical switch, the mode setting is performed by recognizing that the sphygmomanometer and the data processing device are joined as the measurement unit, for example.

[0003]

Conventionally, in a device for performing data transfer by light, a measuring unit, for example, a sphygmomanometer is automatically set in a data processing unit of a partner to which data is objectively transmitted, and the other party is automatically set. When considering a system in which data is transferred to a device, the connection state can be detected by using a reed switch on the main unit and a magnet on the other side separately from the light to transfer the data, or by using a micro switch. When the main body was mechanically set on the main body, a mechanism portion was required so that the microswitch actuator could be operated by the other party. Therefore, it had led to an increase and cost of Ri by that increase the mechanical part with a complicated reliability degradation or failure. Further, in the case of the modulation method, a modulation circuit and a detection circuit are required, which also has a complicated configuration, and has the same drawbacks as in the case of mechanically realizing it.

Further, since the main body needs to constantly detect the coupling state, it consumes power steadily. Therefore, a portable type biometric information measuring device having limited power, for example,
For a continuous sphygmomanometer, consuming power for communication has the disadvantage of reducing the number of measurable times. Therefore, an object of the present invention is to provide a single measurement unit having a measurement function having a data transmission unit that transmits measurement data and related information to an external data processing unit, and a plurality of determinations of connection determination with the data processing unit. The purpose of the present invention is to realize power saving of a measuring instrument on the main body side, for example, a portable sphygmomanometer by using an optical signal constituting a phase of the above and utilizing characteristics of an optical element.

[0005] Another object is that after both bonds can be confirmed,
By performing data transmission between the two, the reliability can be improved and the device can be provided at low cost.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a single measuring unit having a measuring function having a data transmitting / receiving unit for transmitting / receiving measured data and related information to / from an external data processing unit, The transmitting / receiving unit includes a plurality of light receiving elements and at least one light emitting element, and the data processing unit coupled to the measuring unit operates in pairs with the light receiving element and the light emitting element on the data transmitting unit side. A light emitting element and a light receiving element are provided in the data transmitting / receiving section, and when the receiving section of the measuring section receives an optical signal constituting a plurality of specific phases emitted by the data processing section, the measuring section and the processing section transmit data. Biometric information, comprising: a determination unit that determines that the transmission unit is in a transmittable state; and a start unit that starts transmission of data from the measurement unit when the determination unit determines that the transmission is possible. It is achieved by feeding device.

The plurality of light emitting elements of the data processing section output predetermined signals having different phases, and when the predetermined signals having different phases are received by the measuring section, the connection between the measuring section and the data processing section is established. The determination is performed by the measurement unit, and the measurement unit outputs a confirmation signal. When the data processing unit that receives the confirmation signal receives the confirmation signal, the transmission unit receives the transmission data from the measurement unit.

Still further, the plurality of light emitting elements of the data processing section send two signals having phases opposite to each other to the measuring section to check the coupling. Further, the biological information transmission apparatus of the present invention includes a confirmation mode and a communication mode in the operation between the measurement unit and the data processing unit. In the confirmation mode, a confirmation signal for coupling is periodically transmitted from the data processing unit. Output to
The measuring unit periodically checks the coupling.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings, taking a sphygmomanometer as an example. FIG. 3 shows a block diagram of one embodiment of the present invention. In FIG. 3, a sphygmomanometer main body 100 that measures the blood pressure of a subject takes a Korotkoff sound (hereinafter referred to as a K sound) signal by a microphone 2 attached to a man-sitting (cuff) 1 and obtains a K sound signal frequency discriminating amplifier 8. Given to. At the time of blood pressure measurement, the air supply pump 16 is driven by the pump drive unit 15, and pressure is applied to the Manchet 1 via the piping tube 3. This pressure is detected by the pressure detecting unit 4, amplified by the pressure amplifying unit 5, supplied to the A / D converter 6, and input to the microprocessor 10. The output of the pressure signal amplifying unit 5 is supplied to an OSC signal frequency discriminating / amplifying unit 7, and the output thereof is supplied to an A / D converter 9 together with the output of the K sound signal frequency discriminating / amplifying unit 8, and the output thereof is supplied to a microprocessor 10. Given to.

When air supply is necessary, the bypass valve 18 is closed by the bypass valve drive unit 17 and the air supply pump is driven by the pump drive unit. When constant speed exhaust is required, the exhaust valve
Close and do. When rapid exhaust is required, the bypass valve driving unit 17 opens the bypass valve 18 and the exhaust valve driving unit 19 opens the exhaust valve 20 to perform exhaust. 11 is age, gender, time, measurement mode,
A liquid crystal display for displaying necessary items such as an alarm, a blood pressure value, a cuff pressure value, a pulse value, and a temperature. Reference numeral 12 denotes a real-time clock serving as a time reference for operation. Reference numeral 13 denotes a measurement result storage unit that stores measurement results, and reference numeral 14 denotes a measurement raw data storage unit that stores measured raw data. Reference numeral 21 denotes an event switch for performing measurement at an arbitrary time, for example, when an abnormal condition is felt. Reference numeral 22 denotes a stop switch for stopping the operation. Sphygmomanometer main body 100 is optical communication unit 2
3 allows optical connection with the optical communication unit 24 of the data processing device 200. The data processing device is an optical communication unit 2
The input / output to / from the sphygmomanometer 100 via the microprocessor 4 is processed by the microprocessor 26 and output to the printer 25.

The microprocessor 10 of the sphygmomanometer main body 100 displays data such as measurement time, systolic blood pressure, diastolic blood pressure, and pulse rate on the liquid crystal display 11 and stores the data in the measurement result storage unit 13. As will be described later, the sphygmomanometer main body 100
Periodically inputs each signal from the optical communication unit 23 and checks whether or not an inverted-phase signal is input. On the other hand, the data processing device 200 always outputs a reverse phase signal from the optical communication unit 24 and waits for a ready signal from the sphygmomanometer main body 100. As a whole operation, when the sphygmomanometer main body 100 is set in the data processing device 200, if it is normal, the combined mode is set, and the data processing device 200 sends a command “X” to the sphygmomanometer main body 100 and measures from the sphygmomanometer main body 100. Get result data. The data processing device 200 performs necessary processing on the received data and outputs the processed data to the printer 25.

Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings. In the case of a portable sphygmomanometer, setting of various parameters, data analysis, etc. are performed in order to utilize the functionality of the sphygmomanometer. Is performed by another device, and the sphygmomanometer main body is preferably made as compact as possible. What
Note that data is not transferred during measurement by the sphygmomanometer (can be transferred only during sleep) . After the measurement is completed, the setting data of the sphygmomanometer is transmitted to the sphygmomanometer main body, and the measured value is transmitted to the data processing unit .

The communication according to the embodiment of the present invention is performed by the LE shown in FIG.
As shown in the relationship between D and PT, P
One LED of T1, PT3 and LED2 is provided, and two LEDs of LED1 and LED3 are provided on the data processing unit side. The reason for this is that the blood pressure monitor main body side uses as few LEDs as possible to save power, and two LEDs are provided on the data processing unit side that can always be connected to a power supply.

During standby, the data processing device 200 emits opposite-phase outputs from two LEDs, LED1 and LED3, as shown in FIG. Here, when set in the data processing device 200, the sphygmomanometer main body 100 inputs the negative-phase signal for a predetermined period of time at a sampling period 10 times the period. Next, when the sampling input for a predetermined time is completed, the sphygmomanometer main body 100 determines the next input signal sequence in the sphygmomanometer main body reverse phase check sequence shown in FIG.
Perform one check. The input and check of the reverse phase signal of the sphygmomanometer main body 100 are started at predetermined time intervals by a timer interrupt. In S1, when there is a timer interrupt (for example, every 10 seconds), a reverse phase check of the leading numerical value of the input signal having a time width of 60 ms is performed in the initial reverse phase check (S2). Here, if it is against the check, S8
Then, the connection is disabled and the sleep state of S9 is set. The sleep state refers to a state in which the check operation is stopped until the next timer interrupt occurs to reduce power consumption.

Next, in S3, the continuity of the reversed phase (continuous for about 5 ms in the same state) is checked. If the inspection is not performed, S8 and S9 are executed as described above. If the determination in S3 is yes, the control proceeds to S4, where the periodicity of the input signal is checked. Again, if the check is violated in the same manner as described above, S8 and S9 are executed and the apparatus enters the sleep state.

Next, in the phase change number check in S5, the number of phase changes is checked. That is, when the phase change has occurred a predetermined number of times, the process proceeds to the connection confirmation step of S6. However, if the phase change in the various constants does not occur in the same manner as described above S8, S
9 is executed and the apparatus enters a sleep state. When the connection mode is entered, in the connection confirmation in S6, the LED 2 on the blood pressure monitor emits light, and a confirmation signal of the connection is sent to the other side as a busy signal to the other side, and the apparatus enters the connection mode and waits for a command in S7. . That is, the sphygmomanometer main body is in a state of waiting for a 1-byte command.

The data processing device 200 includes a sphygmomanometer main body 100.
To the sphygmomanometer main unit 10
Wait for a busy signal from 0. The data processing device 200 obtains a busy signal from the sphygmomanometer main body 100, confirms that the sphygmomanometer main body 100 has been connected, maintains the connection mode, and stops sending null codes. Data processing device 200
When no busy signal is obtained from the sphygmomanometer main body 100,
The uncoupling time is counted, and when no busy signal arrives for 2 seconds or more, the coupling is released and the reverse-phase signal is output again. Similarly, the sphygmomanometer main body 100 measures the time when the command is no longer sent, and when the time has elapsed for 2 seconds or more, cancels the coupling and shifts to the state of checking the reverse phase signal input.

In the present embodiment, two commands that the sphygmomanometer main body 100 receives in the coupling mode (when coupling is confirmed) are prepared, one of which is a measurement data transfer instruction command ('X') and another command. One is a setting data transfer instruction command ('I'). FIG. 5 shows a measurement data transfer command command execution sequence. Here, when the sphygmomanometer main body 100 sends a ready signal in step S100, the data processing device 200 moves from step S200 to step S201 and transfers an 'X' command. When the sphygmomanometer main body 100 receives the “X” command in step S101, the process proceeds to step S101.
The process goes to 102 to check whether transmission is possible or not. That is, the state of the storage unit 13 in which the measurement data is stored is inspected.
Then, when transmission is possible, the character code of “Tx @ r @ n” is transmitted to the data processing device 200. "E" when transmission is not possible
The character code of fi @ r @ n " is transmitted to the data processing device 200. In step S202, the data processing device 200 receives the character string. if waiting for the transfer data reception ready to step S204. in step S103 from the sphygmomanometer main body 100, the transmission operation is started. that while checking transmission errors perform sum check of all the data in the measurement result storage unit 13 transfers In step S205, if the data processing device 200 receives the data and a checksum error occurs, the data processing device 200 goes to error processing and performs normal termination if the data is normal.
On the 00 side, if the checksum is not returned within a predetermined time after transmission in step S103, a timeout error is determined, and the processing ends with an error.

The blood pressure measurement setting data, such as the measurement start time and the measurement interval, is executed by the 'I' command as shown in the setting data transfer command execution sequence in FIG.
That is, the data processing device 200 sends the
When 'I' is transmitted to the sphygmomanometer main body in step S110
, The sphygmomanometer receives and recognizes the command, and proceeds to step S
At 111, the initialization work is started, and at step S112, the "start time" is ready for reception.

Next, the data processing device 200 sends a signal to step S.
When the “start time” is transmitted to 201, the sphygmomanometer main body 100
Receives this in step S113. Sphygmomanometer body 10
In step S114, "0" is set as a "measurement interval" reception ready. The data processing device 200 then proceeds to step S2
In step 02, the "measurement interval" is transmitted, and the flow shifts to step S203 to wait for a completion response. The sphygmomanometer main body 100 performs step S1.
At 15, the "measurement interval" is received. Next, the sphygmomanometer main body 100
Initializes the measurement result storage unit 13 in step S116, returns a processing completion response 'I' in step S117, and moves to step S118 to wait for a command. The data processing device receives the processing completion response 'I' in step S204, moves to step S205, and ends. In the present embodiment, the portable sphygmomanometer has been described, but the present invention can also be applied to a biological signal measuring device such as a portable electrocardiograph and a thermometer.

[0021]

According to the present invention, it is determined whether or not a single measurement unit having a data measurement function having a data transmission unit for transmitting measurement data and related information to an external data processing unit is connected to the data processing unit. Is performed using optical signals constituting a plurality of specific phases, confirmation is simplified and non-electrical coupling can be performed. Moreover, by utilizing the characteristics of the optical element, it is possible to realize the power saving of the main body-side sphygmomanometer without being affected by disturbance light. And after both bonds are confirmed,
Since data transmission is performed between the two, the reliability of the device can be improved and the device can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a relationship between an LED and a PT according to an embodiment.

FIG. 2 is a diagram illustrating a relationship between anti-phase signals according to the present embodiment.

FIG. 3 is a block diagram of the present embodiment.

FIG. 4 is a diagram showing a sphygmomanometer main body reverse phase check sequence of the present embodiment.

FIG. 5 is a diagram showing a measurement data transfer command command execution sequence according to the present embodiment.

FIG. 6 is a diagram showing a setting data transfer command execution sequence according to the present embodiment.

[Explanation of symbols]

1 Manshiento two microphones 3 piping tube 4 pressure detection unit 5 pressure signal amplification unit 6, 9 A / D converter unit 7 OSC signal frequency discriminating-amplifying section 8 K sound signal frequency discriminating-amplifying section 10, 26 microphone processor 11 LCD Indicator 12 Real-time clock 13 Measurement result storage unit 14 Raw measurement data storage unit 15 Pump drive unit 16 Air supply pump 17 Bypass valve drive unit 18 Bypass valve 19 Exhaust valve drive unit 20 Exhaust valve 21 Event switch 22 Stop switch 23, 24 Light Communication unit 25 Printer 26 Microprocessor 27 Constant speed exhaust valve

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A61B 5/00 102 A61B 5/04 H04B 10/00

Claims (3)

(57) [Claims] 1. A single measuring section having a data measuring function having a data transmitting / receiving section for transmitting / receiving measurement data and related information to / from an external data processing section, and a plurality of light receiving elements are provided in the data transmitting / receiving section of the measuring section. And a data processing unit coupled to the measurement unit, the data processing unit coupled to the measurement unit includes a light receiving element, a light emitting element that operates in a pair with the light emitting element, A determination unit that determines that the measurement unit and the processing unit are in a data transmission enabled state when the reception unit of the measurement unit receives optical signals constituting a plurality of specific phases emitted by the data processing unit. A biological information transmitting apparatus, comprising: means for starting data transmission from the measurement unit when the determination unit determines that transmission is possible. 2. A data processing unit comprising: a plurality of light emitting elements for outputting predetermined signals having different phases; when the measuring unit receives the predetermined signals having different phases, a connection between the measuring unit and the data processing unit is established; The measurement unit judges, the measurement unit outputs a confirmation signal,
When the data processing unit that receives this confirmation signal receives it,
The biological information transmission device according to claim 1, wherein transmission data from the measurement unit is taken. 3. A plurality of light emitting elements of the data processing section send two signals having phases opposite to each other to the measurement section to check the coupling, and further, the operation between the measurement section and the data processing section is performed. 3. A communication system comprising a confirmation mode and a communication mode, wherein in the confirmation mode, a confirmation signal for coupling is periodically output from the data processing unit side, and the measurement unit periodically confirms coupling. The biological information transmission device according to the above.