JP6972745B2 - Signal transmitter - Google Patents

Description

The present disclosure relates to a signal transmitting device.

Conventionally, in a vehicle on the receiving side that has received a voice signal such as a siren emitted by an emergency vehicle, a technique for displaying characters corresponding to the voice signal on the display device of the vehicle on the receiving side has been known (for example, a patent). Document 1).

Japanese Unexamined Patent Publication No. 2014-241055

However, in Patent Document 1, unless the emergency vehicle spontaneously outputs an audio signal such as a siren, it cannot be displayed on the display device of the vehicle on the receiving side. On the other hand, for example, in the case of an incident or accident, there may be a case where it is desired to acquire the information of the target vehicle and investigate the cause even if the information is not spontaneously transmitted from the target vehicle. .. Therefore, a technique capable of requesting information from a specific vehicle has been desired.

The present invention has been made to solve at least a part of the above-mentioned problems, and can be realized as the following forms.

According to one embodiment of the present invention, a signal transmitting device (100, 300) is provided. This signal transmitting device includes a transmitting unit (120) that transmits a request signal requesting the vehicle for vehicle information including information for identifying at least one of the vehicle and the occupant of the vehicle, and the transmitting unit is said to have the same. The vehicle information is requested from the vehicle through the management center (CC) that manages the vehicle information .

According to this form of the signal transmitting device, the vehicle information of the external vehicle can be requested in order to include the transmitting unit.

It is a block diagram which shows the structure of a signal transmission device. It is a figure which shows an example of vehicle information. It is a flowchart of a transmission process executed by a control unit. It is a block diagram which shows the structure of the signal transmission device of 3rd Embodiment. It is explanatory drawing which shows the mode of receiving vehicle information through a management center. It is explanatory drawing which shows the mode of transferring the vehicle information from a management center to a PC or the like. It is explanatory drawing which shows the mode of transmitting a request signal through a management center.

A. First Embodiment A1. Configuration of Signal Transmitting Device 100 As shown in FIG. 1, the signal transmitting device 100 according to the first embodiment is an in-vehicle device mounted on a vehicle. Hereinafter, one vehicle equipped with the signal transmitting device 100 will be referred to as an own vehicle, and a vehicle other than the own vehicle equipped with the signal transmitting device 100 will be referred to as another vehicle. The configuration of the signal transmitting device 100 mounted on the own vehicle will be described below, but the same applies to the configuration of the signal transmitting device 100 mounted on the other vehicle.

The signal transmitting device 100 includes a control unit 110 and a transmitting unit 120. The control unit 110
It is configured as a computer equipped with a CPU, RAM, ROM, etc., and executes a transmission process described later by a program stored in the ROM. The transmitting unit 120 transmits a request signal requesting the vehicle on the receiving side for vehicle information including information for identifying at least one of the vehicle and the occupant of the vehicle. Vehicle information will be described in detail later.

In addition to the signal transmitting device 100, the own vehicle further includes an in-vehicle sensor 11, a communication device 13, a GPS receiver 15, an external detection unit 17, an impact detection unit 19, a vehicle speed sensor 21, and an acceleration sensor 23. , A storage device 25, and a display device 27.

The external detection unit 17 is a sensor that detects a suspicious vehicle exhibiting a predetermined behavior, and is also a sensor that detects a stationary object such as a wall, another vehicle, or an obstacle such as a pedestrian. Examples of the external detection unit 17 include millimeter wave sensors, cameras, laser radars, ultrasonic sensors, and the like. In this embodiment, a camera is used as the external detection unit 17.

The impact detection unit 19 is a sensor that detects an impact on the own vehicle. In the present embodiment, the impact detection unit 19 is a sensor that detects an impact from the acceleration acting on the vehicle, but may be, for example, a sensor that detects the impact itself acting on the vehicle.

The in-vehicle sensor 11 is a sensor that detects the face and state of the occupant. In this embodiment, a camera is used as the in-vehicle sensor 11. The communication device 13 is a device that performs wireless communication with a signal transmission device 100 mounted on another vehicle and other devices. In the present embodiment, the communication device 13 also functions as a receiving unit for receiving vehicle information. The GPS receiver 15 is a device for acquiring the position information of the own vehicle, a device for acquiring the position information of the signal transmitting device 100 mounted on the own vehicle, and a device for acquiring the time information as well.

The vehicle speed sensor 21 is a sensor that detects the vehicle speed of the own vehicle. The acceleration sensor 23 is a sensor that detects the acceleration of the own vehicle. The storage device 25 is a device for storing various data. The display device 27 is a display installed in the vehicle interior of the own vehicle, and can display an arbitrary image.

Here, the vehicle information will be described in detail below with reference to FIG. In the present embodiment, the vehicle information is information that is acquired at any time by an in-vehicle device such as an in-vehicle sensor 11 described later and stored in the storage device 25. In the present embodiment, the vehicle information includes (i) information for specifying at least one of the vehicle and the occupant of the vehicle, (ii) information indicating the state of the vehicle, and (iii) information indicating the state of the occupant. ..

(I) Information for identifying at least one of the vehicle and the occupant of the vehicle includes information for identifying the vehicle and information for identifying the occupant of the vehicle. Further, the information for identifying the vehicle includes the owner information of the vehicle. Vehicle owner information includes, for example, information about a name, address, and contact information. Further, examples of the information for identifying the vehicle include a vehicle-specific ID, a MAC address used for information communication between vehicles, and a vehicle identification number. In the present embodiment, the information for identifying the vehicle is stored in advance in the storage device 25.

Information for identifying the occupant of the vehicle includes information for identifying the driver of the vehicle and information for occupants of the vehicle other than the driver. Examples of the driver information of the vehicle include a driver's ID, a license number, and facial image information. Information on the occupants of the vehicle other than the driver includes, for example, the ID of each occupant and the number of occupants. In the present embodiment, after the faces of the occupants are identified by the in-vehicle sensor 11, the information for identifying the occupants of the vehicle is acquired by the communication device 13.

Further, (ii) information indicating the state of the vehicle includes information on the position of the vehicle, the traveling direction of the vehicle, speed, acceleration, and yaw rate, and information on an abnormality of the in-vehicle device. Further, as the information indicating the state of the vehicle, information on the collision time detected by the impact detection unit 19 and video information detected by the external detection unit 17 can be mentioned.

Further, as information indicating the state of the vehicle, route information and destination information set by a car navigation device (not shown) can be mentioned. Further, as information indicating the state of the vehicle, information indicating whether the vehicle is in automatic driving or manual driving, information indicating that the vehicle is in the TOR (Take Over request) state, and MRM (Minimum risk maneuver) state. Information indicating that the vehicle is present, information indicating that the vehicle is in an EM (Emergency Maneuver) state, and information indicating that the vehicle is stopped can be mentioned, and the time and elapsed time of these states can be mentioned. Further, as the information indicating the state of the vehicle, information indicating the attachment status of the safety device such as whether or not the seatbelt is worn and whether or not the half door is attached, and information on the load capacity of the vehicle can be mentioned. Information indicating the state of the vehicle is detected by, for example, an in-vehicle device such as a GPS receiver 15 or a vehicle speed sensor 21.

Further, as information indicating the state of the occupants, information on the state of the occupants and information on the number of occupants can be mentioned. Information on the state of the occupant includes a normal state and an abnormal state, and examples of the abnormal state include loss of consciousness, drunkenness, and sleep. Information indicating the state of the occupant is detected by the in-vehicle sensor 11.

A2. Processing executed by the signal transmitting device 100 As shown in FIG. 3, the control unit 110 executes transmission processing. Here, the transmission process refers to a series of processes including a process in which the transmission unit 120 transmits the above-mentioned request signal. In the present embodiment, when the impact detection unit 19 detects an impact of a predetermined value (N) or more, the transmission process is executed. In the present embodiment, the impact of the predetermined value (N) means an impact to the extent that the own vehicle is damaged, but it may be an impact to the extent that the airbag operates.

When the impact detection unit 19 detects an impact of a predetermined value (N) or more, in step S110, the control unit 110 acquires a collision time indicating the time when the impact is detected from the GPS receiver 15 and stores it. Store in the device 25.

Next, in step S120, the control unit 110 transmits a request signal requesting vehicle information to a specific vehicle by the transmission unit 120. In the present embodiment, the control unit 110 requests information for identifying the vehicle as vehicle information. The request signal from the own vehicle includes information on the collision time and information for identifying the own vehicle stored in the storage device 25.

In the present embodiment, the transmitting unit 120 requests vehicle information from another vehicle existing within a predetermined distance from the signal transmitting device 100 as a specific vehicle. In the present embodiment, the transmitting unit 120 requests vehicle information from another vehicle existing within at least 5 m from the signal transmitting device 100 by adjusting the radio wave strength.

Next, in the step S130, the control unit 110 stores the storage device 25 to store that the transmission has been performed. By doing so, it is possible to later verify that the request signal has been transmitted from the own vehicle.

Next, in step S140, the control unit 110 receives vehicle information from another vehicle in which an impact is detected by the communication device 13 of the own vehicle. In the present embodiment, among the vehicles that have received the request signal from the own vehicle, the impact detection unit provided in the vehicle detects an impact of a predetermined value (N) or more, and the collision time is itself. A vehicle that matches the collision time received from the vehicle transmits information that identifies the vehicle to the own vehicle by a command from the control unit of the signal transmission device mounted on the other vehicle. Since the request signal from the own vehicle includes information for identifying the own vehicle, the other vehicle in which the impact is detected can identify the own vehicle.

Then, in step S150, the control unit 110 records vehicle information. In the present embodiment, the control unit 110 records the vehicle information received in the storage device 25 of the own vehicle. The control unit 110 may display the vehicle information on the display device 27 instead of recording the vehicle information, or may record and display the vehicle information. With the above, the outgoing call processing is completed.

According to the signal transmitting device 100 of this form, the vehicle information of another vehicle can be requested from the outside in order to include the transmitting unit 120. Further, in the present embodiment, since the request signal is transmitted at the time of a collision, even when the collided vehicle escapes, it becomes easy to identify the vehicle after the fact. Further, since the request signal is transmitted at the time of a collision, even if the information of the collided vehicle is tampered with after the fact, the damage caused by the tampering can be suppressed.

Further, according to the first embodiment, since the collision time is stored in the step S110, the collision occurrence time becomes clear, so that the ex post facto verification becomes easy. Further, since the vehicle information is transmitted from the vehicle having the matching collision time to the own vehicle, the specific reliability of the collision partner is higher than that in the case where the matching of the collision time is not confirmed.

B. 2nd Embodiment The transmission processing of the 1st embodiment is executed when the impact detection unit 19 detects an impact of a predetermined value (N) or more, but the transmission processing of the 2nd embodiment is external detection. The process S110 and the process S120 are different from each other in that they are executed when a suspicious vehicle exhibiting a predetermined behavior is detected by the unit 17, and the other steps are the same.

In the second embodiment, the suspicious vehicle exhibiting a predetermined behavior is a vehicle that approaches a vehicle equipped with the signal transmitting device 100 within a predetermined distance at a predetermined speed or higher. In this embodiment, the predetermined distance is 10 to 15 cm, and the predetermined speed is 30 km / h.

In the second embodiment, in the step S110, the control unit 110 acquires the time when the suspicious vehicle exhibiting the predetermined behavior is detected from the GPS receiver 15 and stores it in the storage device 25. Then, in step S120, the control unit 110 requests vehicle information from another vehicle existing within a predetermined distance from the signal transmitting device 100. Then, in response to this transmission, among the vehicles that received the request signal from the own vehicle, the time when the predetermined behavior and the suspicious vehicle showing the predetermined behavior were detected coincided with the time received from the own vehicle. The vehicle sends information that identifies the vehicle to its own vehicle.

By doing so, it is possible to transmit a request signal for vehicle information before the collision. Therefore, even if the transmission unit 120 of the signal transmission device 100 fails after the collision, the transmission can be reliably performed.

In the present embodiment, the suspicious vehicle is a vehicle that approaches a vehicle equipped with the signal transmitting device 100 within a predetermined distance at a speed equal to or higher than a predetermined speed, but the suspicious vehicle is not limited to this. .. Other suspicious vehicles include, for example, (i) information that the occupants in the vehicle are abnormal, information that the vehicle is overloaded, information that the occupants in the vehicle are not wearing seat belts, and half. Examples include vehicles that transmit information to the effect that they are doors in vehicle-to-vehicle communication, and (ii) vehicles that sway to the left or right beyond a predetermined value. Here, for the detection of the wobbling to the left and right, for example, the technique of Japanese Patent Application No. 2004-267322 can be referred to.

C. Third Embodiment The signal transmitting device 300 in the third embodiment is different from the signal transmitting device 100 in the first embodiment in that it further includes a transmitting switch 130 as shown in FIG. 4, but other than that. Is the same. The transmission switch 130 is a switch in which the transmission unit 120 transmits a request signal when pressed. The signal transmitting device 300 according to the third embodiment is mounted on an emergency vehicle used by, for example, police officers, firefighters, rescue workers, and the like. In the present embodiment, the transmission switch 130 is arranged at a position where it can be pressed by an occupant other than the driver of the own vehicle. By doing so, the driver of the own vehicle can concentrate on driving, and thus the safety is improved. The transmission switch 130 may be arranged at a position where the driver of the own vehicle can press it.

The transmission process of the third embodiment is executed when the transmission switch 130 is pressed. By doing so, it is possible to request vehicle information when a suspicious vehicle is found or when a vehicle that interferes with public affairs is found. In the first embodiment and the second embodiment, it is assumed that at least one of the own vehicle and the vehicle on the receiving side is traveling, but in the third embodiment, the own vehicle and the vehicle on the receiving side are different. Vehicle information can be requested even when both are stopped.

In the present embodiment, when the transmission switch 130 is pressed, vehicle information is requested from another vehicle existing within at least 5 m from the signal transmission device 100. In the present embodiment, since the vehicle information includes the position information, when the vehicle information about a plurality of vehicles is received, the vehicle information about the target vehicle can be specified from the position information. Further, the vehicle information may further include at least one of information about the driver of the vehicle, information indicating whether the vehicle is being driven automatically or manually, and information indicating an abnormality of the vehicle. By doing so, when a suspicious vehicle is found, information about the inside of the vehicle can be obtained. The request signal may include information regarding the authority of the caller. Information on the authority of the caller includes, for example, information indicating that the call is being made from an emergency vehicle used by police officers, firefighters, rescue workers, and the like. By doing so, the originator of the request signal can be clarified.

D. Modification D1. Modification 1
In the first embodiment, the information for specifying the vehicle is requested as the requested vehicle information, but the information is not limited to this. The requested vehicle information may further include at least one of information about the driver of the vehicle, information indicating whether the vehicle is being driven automatically or manually, and information indicating an abnormality of the vehicle. By doing so, it is possible to clarify after the fact whether the cause of the collision is attributed to the occupant or the vehicle.

D2. Modification 2
In the first embodiment, the control unit 110 receives vehicle information from another vehicle by the communication device 13 of the own vehicle. However, it is not limited to this. For example, as shown in FIG. 5, another vehicle that transmits vehicle information transmits the vehicle information to the management center CC that manages the vehicle information, and the management center CC records the received vehicle information and then signals from the management center CC. Vehicle information may be transmitted to the transmitter 100. By doing so, the vehicle information requested by the management center can be managed.

Further, as shown in FIG. 6, the management center CC may transmit the vehicle information to the mobile phone or PC of the driver of the own vehicle. By doing so, even if the signal transmitting device 100 fails after transmitting the request signal, the driver of the own vehicle can receive the vehicle information.

Further, as shown in FIG. 7, the transmission of the request signal by the signal transmission device 100 may be transmitted to another vehicle via the management center CC. By doing so, the transmission status of the request signal can be managed at the management center. The management center CC can transmit the request signal by the signal transmitting device 100 from the own vehicle to the vehicle within a predetermined distance by managing the position information of each vehicle and the information for identifying each vehicle.

D3. Modification 3
In the first embodiment, in step S140, the control unit 110 receives vehicle information from vehicles having the same collision time, but is not limited to this. For example, the control unit 110 may request vehicle information from the nearest vehicle at the time of a collision. Further, a vehicle including video information acquired by the external detection unit 17 for a vehicle within a predetermined range (for example, at least 5 m) from the own vehicle until a predetermined time (for example, 5 minutes) elapses from the collision time. Information may be requested. By doing so, it is possible to collect information on the collision situation from the outside, and it becomes easy to verify after the fact.

D4. Modification 4
In the above-described embodiment, the signal transmitting device 100 is an in-vehicle device mounted on a vehicle, but is not limited to this, and may be a portable device. The portable device may be, for example, a mobile phone or a PC.

D5. Modification 5
In the above-described embodiment, the signal transmission device 100 is connected to the external detection unit 17, the impact detection unit 19, and the storage device 25, but the signal transmission device 100 is not limited to this, and the signal transmission device 100 is connected to the external detection unit 17. , The impact detection unit 19 and the storage device 25 may be provided.

D6. Modification 6
In the first embodiment, in the step S110, the control unit 110 stores the collision time indicating the time, and the specific vehicle transmits the vehicle information to the own vehicle after determining whether the collision time matches. Not limited to this. The control unit 110 may not record the collision time, and the vehicle that has detected an impact of a predetermined value (N) or more by the impact detection unit provided in the vehicle may transmit vehicle information. By doing so, the process is simplified.

D8. Modification 8
The transmitting unit 120 transmits a request signal requesting vehicle information, but the present invention is not limited to this, and vehicle control information requesting vehicle control to the vehicle may be transmitted. The vehicle control information may be transmitted at the same time as the request signal, or may be transmitted after the request signal is transmitted. By doing so, for example, when the police find a vehicle in an abnormal state, the window or door of the vehicle on the receiving side can be opened, and the vehicle on the receiving side can be stopped. It can be moved to a place such as a hospital. Further, for example, after a collision occurs, the vehicle on the receiving side can be stopped on the shoulder or immediately stopped, and the vehicle parked in the parking prohibited place can be moved to the parkingable place. The vehicle on the receiving side may authenticate when it receives the vehicle control information. Examples of the authentication include confirmation of the vehicle driver on the receiving side, confirmation that the information identifying the sender side is an emergency vehicle, and voice confirmation by the vehicle on the receiving side for the emergency vehicle that sounds the siren. The vehicle that has received the vehicle control information may forcibly follow the vehicle control information, or may follow the vehicle control information after having the vehicle driver on the receiving side confirm acceptance via the display device 27. Further, if the acceptance from the vehicle driver on the receiving side cannot be obtained for a certain period of time, it may be determined that the vehicle driver cannot answer, and it may be assumed that the acceptance has been confirmed.

D9. Modification 9
The transmission unit 120 transmits a request signal for requesting vehicle information, but the present invention is not limited to this, and may further transmit notification information for notifying the occupants of the vehicle that the vehicle information has been requested. The transmission of the notification information may be transmitted at the same time as the request signal, or may be transmitted after the transmission of the request signal. By doing so, it is possible to notify the occupants of the vehicle on the receiving side that the vehicle has been requested.

11 ... In-vehicle sensor, 13 ... Communication device, 15 ... GPS receiver, 17 ... External detection unit, 19 ... Impact detection unit, 21 ... Vehicle speed sensor, 23 ... Accelerometer, 25 ... Storage device, 27 ... Display device, 100 ... Signal transmitter, 110 ... Control unit, 120 ... Transmitter, 130 ... Transmit switch, 300 ... Signal transmitter, CC ... Management center

Claims (9)

A transmitter (120) for transmitting a request signal for requesting vehicle information to the vehicle, including information for identifying at least one of the vehicle and the occupant of the vehicle, is provided .
The transmission unit is a signal transmission device (100, 300) that requests the vehicle information from the vehicle via a management center (CC) that manages the vehicle information. The signal transmitting device according to claim 1, further
Equipped with an impact detection unit (19) that detects impact
A signal transmitting device that transmits a request signal when the impact detecting unit detects an impact of a value equal to or higher than a predetermined value. The signal transmitting device according to claim 1 or 2, further comprising.
It is equipped with an external detection unit (17) that detects a suspicious vehicle that exhibits predetermined behavior.
When the suspicious vehicle is detected by the external detection unit, the transmission unit transmits the request signal. The signal transmitting device according to claim 3.
The suspicious vehicle is a signal transmitting device that approaches from the signal transmitting device within a predetermined distance at a predetermined speed or higher. The signal transmitting device (300) according to any one of claims 1 to 4, further comprising.
A signal transmission device including a transmission switch (130) in which the transmission unit transmits the request signal when pressed. The signal transmitting device according to any one of claims 1 to 5.
The vehicle information includes information on the driver of the vehicle, information on occupants other than the driver of the vehicle, information indicating whether the vehicle is in automatic driving or manual driving, and information indicating an abnormality in the vehicle. A signal transmitter, including at least one of. The signal transmitting device according to any one of claims 1 to 6, and further.
A signal transmission device comprising a storage device (25) for storing the transmission of the request signal when the transmission unit transmits the request signal. The signal transmitting device according to any one of claims 1 to 7.
The transmitting unit is a signal transmitting device that further transmits vehicle control information requesting vehicle control to the vehicle. The signal transmitting device according to any one of claims 1 to 8.
The transmission unit is a signal transmission device that further transmits notification information for notifying the occupants of the vehicle that the vehicle information has been requested.

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