JP2020149517A - Traveling vehicle information collection system and traveling vehicle information collection method - Google Patents

Abstract

To efficiently collect information on a vehicle that performs specific driving such as dangerous act without increasing a scale of a system.SOLUTION: A traveling vehicle information collecting system 10 comprises a radio wave radar 20 and a communication device 30. The radio wave radar 20 includes a sensor device and a determination unit. The communication device 30 includes an information management unit. The sensor device is installed near an intersection and detects a traveling state of a vehicle passing through the intersection. The determination unit determines dangerous driving by using a detection result of a traveling state by the sensor device and signal information of a traffic light 41 and a traffic light 42. The information management unit transmits information request data for requesting an image of an intersection based on the determination of dangerous driving, and acquires video information from a drive recorder 81 and a drive recorder 82 according to the information request data and transmits the video information to a data center 50.SELECTED DRAWING: Figure 2

Description

The present invention relates to a technique for collecting information on a vehicle traveling in a specific manner.

Patent Document 1 discloses a system for monitoring a vehicle that performs a dangerous act such as ignoring a signal. In the system described in Patent Document 1, the traffic light is equipped with a camera.

The camera captures the area including the intersection. The system uses images acquired by the camera to monitor vehicles that perform dangerous acts.

Further, Patent Document 2 discloses a drive recorder that images a vehicle that ignores signals.

Japanese Unexamined Patent Publication No. 2015-207177 Japanese Unexamined Patent Publication No. 2018-101337

However, in the system described in Patent Document 1, since the camera is mounted on the traffic light, the system becomes large-scale. Further, the video acquired by the drive recorder described in Patent Document 2 has not been effectively utilized because a system for utilizing the video has not been constructed.

Therefore, an object of the present invention is to provide a traveling vehicle information collecting technique capable of efficiently collecting information on a vehicle that performs a specific traveling such as a dangerous act without increasing the scale of the system.

According to an example of the present disclosure, the traveling vehicle information collecting system includes a sensor, a determination unit, and an information management unit. The sensor is installed in the vicinity of the specific position and detects the traveling state of the vehicle passing through the specific position. The determination unit determines dangerous driving by using the detection result of the traveling state by the sensor and the signal information of the traffic light. The information management unit transmits information request data requesting video at a specific position based on the judgment of dangerous driving, acquires video information from the drive recorder corresponding to the information request data, and transmits it to the host system. ..

In this configuration, the image information of the drive recorder of the vehicle existing around the specific position is collected by using the sensor detecting the vehicle that runs dangerously at the specific position as a trigger.

According to an example of the present disclosure, the information management unit transmits information request data to a drive recorder existing within a specific range with respect to a specific position.

With this configuration, video information that is likely to be the required video can be selectively acquired.

According to an example of the present disclosure, the information management unit selects a plurality of acquired video information using the time information or position information attached to the video information and transmits the acquired video information to the host system.

In this configuration, video information that is likely to be the required video is selectively transmitted to the host system.

According to an example of the present disclosure, the sensor is a radio wave radar.

With this configuration, dangerous driving is detected more reliably and with high accuracy.

According to the present invention, it is possible to efficiently collect information on a vehicle that performs a specific traveling such as a dangerous act without increasing the scale of the system.

It is a figure which shows the outline of the traveling vehicle information collection system. It is a functional block diagram which shows the schematic structure of the whole system including the traveling vehicle information collection system. It is a functional block diagram of a radio wave radar. It is a functional block diagram of a communication device. It is a functional block diagram of a drive recorder. It is a figure which shows the processing sequence of the traveling vehicle information collection system. It is a supplementary figure for demonstrating the processing sequence. It is a flowchart of a traveling vehicle information collection method. It is a flowchart of a traveling vehicle information collection method. It is a figure which shows the outline of the derivative structure of the traveling vehicle information collection system. It is a functional block diagram which shows the schematic structure of the derivation of the whole system including the traveling vehicle information collection system.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

-Application example First, an application example of the traveling vehicle information collection system according to the present embodiment will be described. FIG. 1 is a diagram showing an outline of a traveling vehicle information collection system.

The traveling vehicle information collecting system 10 includes a radio wave radar 20 and a communication device 30. The radio wave radar 20 and the communication device 30 are installed in the vicinity of the intersection 90. A traffic light 41 and a traffic light 42 are arranged at the intersection 90.

The radio wave radar 20 detects the traveling state of the vehicle traveling at the intersection 90. The radio wave radar 20 can communicate with the traffic light 41 and the traffic light 42. The radio wave radar 20 acquires traffic light information from the traffic light 41 and the traffic light 42. The traffic light information is information indicating whether the traffic light presents a blue, red, or yellow state.

The radio wave radar 20 determines the dangerous behavior of the vehicle from the traveling state of the vehicle and the traffic light information. For example, in the case of FIG. 1, the radio wave radar 20 determines that the vehicle 800 is ignoring the signal (dangerous act).

The radio wave radar 20 outputs a determination that the vehicle 800 is ignoring the signal to the communication device 30.

The communication device 30 transmits information request data so as to reach a specific range based on the intersection 90 based on the determination that a dangerous act has been performed. The information request data is data that requests video information including the video captured by the drive recorder. The video information includes a video captured by the drive recorder and time information and position information associated with the video.

The drive recorder 81 of the vehicle 801 and the drive recorder 82 of the vehicle 802 within a specific range with respect to the intersection 90 receive the information request data. The drive recorder 81 and the drive recorder 82 transmit the stored video information to the communication device 30.

The communication device 30 receives the video information from the drive recorder 81 and the video information from the drive recorder 82. The communication device 30 aggregates the received video information and transmits it to a higher-level system such as a data center 50.

With such a configuration and processing, the traveling vehicle information collecting system 10 can efficiently collect video information of a vehicle performing a specific traveling such as a dangerous act without increasing the scale of the system. Then, the traveling vehicle information collecting system 10 can provide these video information to a higher-level system or the like.

-Structure example The traveling vehicle information collection system according to the embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is a diagram showing an outline of a traveling vehicle information collection system. FIG. 2 is a functional block diagram showing a schematic configuration of an entire system including a traveling vehicle information collection system.

(Overall outline composition)
As shown in FIG. 2, the traveling vehicle information collecting system 10 includes a radio wave radar 20 and a communication device 30. The radio wave radar 20 is connected to the communication device 30. Further, the radio wave radar 20 is connected to the traffic light 41 and the traffic light 42. The communication device 30 can wirelessly communicate with the drive recorder 81 and the drive recorder 82. The number of drive recorders is not limited to two, but is the number of drive recorders existing in the specific range described above. The communication device 30 connects to the data center 50 via the data communication network 500. The network 500 may be either wireless or wired, and these may be mixed. The data center 50 constitutes the higher-level system of the present invention, and the higher-level system is, for example, a system that detects a vehicle that performs dangerous traveling such as ignoring a signal.

Each component shown in FIG. 2 is arranged as shown in FIG. 1, for example. The intersection 90 is a point where the road 901 and the road 902 intersect. The intersection 90 corresponds to the "specific position" of the present invention.

The traffic light 41 and the traffic light 42 are arranged at predetermined positions at the intersection 90. The traffic light 41 is for a vehicle traveling on the road 901, and the traffic light 42 is for a vehicle traveling on the road 902.

The radio wave radar 20 and the communication device 30 are arranged in the vicinity of the intersection 90. The radio wave radar 20 is arranged at a position where the line of sight is good with respect to the intersection 90.

The drive recorder 81 is mounted on the vehicle 801 and the drive recorder 82 is mounted on the vehicle 802.

(Configuration and processing of radio wave radar 20)
FIG. 3 is a functional block diagram of the radio wave radar.
As shown in FIG. 3, the radio wave radar 20 includes a sensor device 21 and a determination unit 22. The sensor device 21 and the determination unit 22 are connected to each other. For example, the determination unit 22 is realized by a predetermined electric circuit. Further, the traffic light information from the traffic light 41 and the traffic light 42 is input to the determination unit 22. As described above, the traffic light information is information indicating which of the blue, red, and yellow states the traffic light is presenting.

The sensor device 21 is, for example, a radar using a known radio wave. The sensor device 21 transmits the detected radio wave to a predetermined range including the intersection 90. The sensor device 21 receives the reflected signal reflected by the vehicle or the like with respect to the transmitted signal. The sensor device 21 detects the traveling state of the vehicle from the transmitted signal and the reflected signal. The traveling state of the vehicle is the traveling direction and traveling speed of the vehicle. The sensor device 21 associates the detection time with the traveling information of the vehicle and outputs the detection time to the determination unit 22.

The determination unit 22 determines the dangerous behavior of the vehicle by using the traveling information of the vehicle and the traffic light information. More specifically, the determination unit 22 determines, for example, ignoring the signal by using the traveling information of the vehicle and the traffic light information.

In the example of FIG. 1, the traffic light 41 is lit in red, and the vehicle 800 and the vehicle 801 on the road 901 must not enter the intersection 90. However, as shown in FIG. 1, the vehicle 800 is approaching the intersection 90 at a predetermined speed.

The determination unit 22 detects the result that the vehicle 800 is traveling in the intersection 90 by the sensor device 21 from the traveling information of the vehicle, and detects the state that the traffic light 41 is lit in red from the traffic light information. .. From these detection results, the determination unit 22 determines that the vehicle 800 has entered the intersection 90, ignoring the signal.

The determination unit 22 outputs the determination result to the communication device 30 in association with the detection time. At this time, the determination unit 22 may output the newly determined time (determination time) to the communication device 30 in association with the determination result.

(Configuration and processing of communication device 30)
FIG. 4 is a functional block diagram of the communication device.
As shown in FIG. 4, the communication device 30 includes an information management unit 31, a communication unit 32, a storage unit 33, and an antenna 320. The information management unit 31, for example, the communication unit 32 is realized by a predetermined electronic circuit, and the storage unit 33 is realized by a predetermined storage device such as a semiconductor memory.

The information management unit 31 connects to the communication unit 32 and the storage unit 33. Further, the information management unit 31 connects to the radio wave radar 20 and the network 500.

The determination result by the determination unit 22 is input to the information management unit 31. The information management unit 31 generates information request data based on the determination result of the dangerous act. The information request data is data that requests video information including the video captured by the drive recorder. The video information includes a video captured by the drive recorder and time information and position information associated with the video. The information management unit 31 outputs the information request data to the communication unit 32.

The communication unit 32 transmits information request data via the antenna 320. Radio beacons, optical beacons, WiFi, etc. can be used to transmit information request data.

It is preferable that the time from when the information management unit 31 receives the determination result to when the communication unit 32 transmits the information request data is as short as possible. The upper limit of this time can be set as appropriate. For example, the length of time required for a vehicle observing traffic rules to pass through a specific range including an intersection 90, and the lighting cycle of the traffic light 41 and the traffic light 42. It can be set based on the above.

The communication unit 32 receives the video information corresponding to the information request data and outputs it to the information management unit 31.

The information management unit 31 stores the acquired video information, for example, in the case of FIGS. 1 and 2, the video information from the drive recorder 81 and the video information from the drive recorder 82 in the storage unit 33. The information management unit 31 aggregates these video information and generates verification data. The information management unit 31 transmits the verification data to the data center 50 via the network 500. The information management unit 31 may sequentially transmit the verification data every time the determination result is obtained and the video information is obtained, and the verification data is transmitted at each preset cycle. May be good.

(Configuration and processing of drive recorder 81 and drive recorder 82)
FIG. 5 is a functional block diagram of the drive recorder. Although the drive recorder 81 is shown as an example in FIG. 5, the basic configuration of the drive recorder 82 is the same as that of the drive recorder 81. Therefore, here, the configuration of the drive recorder 81 will be described.

The drive recorder 81 includes a camera 811, a storage unit 812, and a communication unit 813. The camera 811 and the storage unit 812 and the communication unit 813 are connected by, for example, a data bus. For example, the storage unit 812 is realized by a storage device such as a semiconductor memory, and the communication unit 813 is realized by a predetermined electronic circuit.

The drive recorder 81 is mounted on the vehicle 801 as shown in FIG. 1, for example. The camera 811 images the front of the vehicle 801 and generates video data. The camera 811 stores the video data in the storage unit 812.

The communication unit 813 receives the information request data from the communication unit 32 of the communication device 30. The communication unit 813 reads the video data from the storage unit 812 based on the reception of the information request data, and generates the video information. At this time, the communication unit 813 reads out the video data for a predetermined period based on the reference time (detection time, determination time, etc.) included in the information request data. This period includes, for example, a reference time and is a time from before a predetermined time to after a predetermined time. As a more specific example, this period is a time of several seconds to several tens of seconds including the reference time. Note that this period (time length) may be specified by the information management unit 31 and included in the information request data.

(How to collect traveling vehicle information)
FIG. 6 is a processing sequence diagram showing an outline of a method of collecting traveling vehicle information. 7 (A) and 7 (B) are supplementary views for explaining the processing sequence. The specific description of each process is described above, and the parts other than necessary are omitted.

As shown in FIG. 6, the radio wave radar 20 of the traveling vehicle information collecting system 10 detects a traveling vehicle (violating vehicle) performing a dangerous act.

Specifically, as shown in FIG. 7A, the radio wave radar 20 detects the vehicle 800 that has entered the intersection 90. The radio wave radar 20 has acquired that the traffic light 41 is a red light. As a result, the radio wave radar 20 determines that the vehicle 800 is a vehicle that performs a dangerous act ignoring the signal. At this point, it is known that the dangerous traveling vehicle exists, but the unique information of the vehicle 800 cannot be identified. However, by performing the following processing, the unique information of the vehicle 800 can be identified.

The communication device 30 of the traveling vehicle information collection system 10 receives the determination result, generates information request data, and transmits the information request data. The drive recorder existing in the specific range based on the intersection 90 receives the information request data and transmits the video information to the communication device 30.

Specifically, as shown in FIG. 7B, there are vehicles 801 and 802 different from the vehicle 800 in the vicinity of the intersection 90. Therefore, the information request data is received by the drive recorder 81 of the vehicle 801 and the drive recorder 82 of the vehicle 802. The drive recorder 81 and the drive recorder 82 generate video information based on the information request data. The vehicle 801 and the vehicle 802 are in a state where the front faces the intersection 90. Therefore, the vehicle 800 is shown in the image of the drive recorder 81 and the image of the drive recorder 82. Therefore, by verifying this image, the unique information of the vehicle 800 can be identified by, for example, a license plate or the like. The drive recorder 81 and the drive recorder 82 transmit video information to the communication device 30.

When the communication device 30 of the traveling vehicle information collection system 10 receives the video information, it generates verification data and transmits it to the data center 50.

By performing the above configuration and processing, it is possible to detect a vehicle performing a dangerous act without installing a camera or the like on a traffic light. That is, the traveling vehicle information collecting system 10 can suppress the increase in the scale of the system and detect a vehicle that performs a dangerous act. Further, by using this configuration, the traveling vehicle information collecting system 10 can effectively use the image of the vehicle performing the dangerous act stored in the drive recorder. That is, the traveling vehicle information collection system 10 can efficiently collect images of vehicles that perform dangerous acts.

(Processing flow of traveling vehicle information collection system 10)
When realizing the above-mentioned processing, the traveling vehicle information collecting system 10 may execute, for example, the following processing flow. FIG. 8 is a flowchart of a traveling vehicle information collecting method.

The traveling vehicle information collecting system 10 detects the traveling vehicle (S111) and acquires traffic light information (S112). The traveling vehicle information collecting system 10 determines the presence or absence of dangerous traveling from the detection result of the traveling vehicle and the traffic light information (S12).

If there is no dangerous driving (S13: NO), the traveling vehicle information collecting system 10 returns to the detection of the traveling vehicle and the acquisition of the traffic light information.

If there is dangerous driving (S13: YES), the traveling vehicle information collecting system 10 transmits information request data (S14).

When the traveling vehicle information collecting system 10 receives the video information based on the information request data (S15), the traveling vehicle information collecting system 10 generates verification data and transmits it to the data center 50 (S16).

(Second processing flow of the traveling vehicle information collection system 10)
The traveling vehicle information collecting system 10 may perform the following processing. FIG. 9 is a flowchart of a traveling vehicle information collecting method. The flow shown in FIG. 9 is different from the flow shown in FIG. 8 in that step S21 is added. Other processes of the flow shown in FIG. 9 are the same as those of the flow shown in FIG. 8, and the description of the same parts will be omitted.

After receiving the video information (S15), the traveling vehicle information collecting system 10 selects the video information by using the traveling information of the vehicle performing the dangerous act and the position information included in the video information (S21). The traveling vehicle information collection system 10 generates verification data using the selected video information and transmits it to the data center 50 (S16).

For example, the traveling vehicle information collecting system 10 performs the following processing. The traveling vehicle information collecting system 10 detects the traveling direction of the vehicle that has performed a dangerous act from the detection result of the radio wave radar 20. The traveling vehicle information collecting system 10 selects a drive recorder of a vehicle that runs in a direction opposite to the traveling direction of the vehicle that has performed a dangerous act or is stopped in the opposite direction. The information management unit 31 of the traveling vehicle information collecting system 10 can select this vehicle from the position information included in the video information by knowing the position information of the intersection 90. For example, in the example of FIG. 1, the vehicle 800 that has performed a dangerous act is traveling on the road 902 from the intersection 90 to the other side. This traveling state can be detected by the radio wave radar 20. Further, the positions of the vehicle 801 on the road 902 and on the other side of the intersection 90 facing the intersection 90 are the position information included in the video information of the drive recorder 81 of the vehicle 801 and the position information of the intersection 90. Can be detected from the relationship of. Therefore, the information management unit 31 selects the video information of the drive recorder 81 of the vehicle 801 and generates the verification data.

By performing such processing, only the video information effective for identifying the vehicle 800 that has performed the dangerous act can be transmitted to the data center 50 as verification data. As a result, for example, the processing load on the communication of the information management unit 31 of the communication device 30 is reduced without losing valid video information.

Further, when making such a selection, by further referring to the time information, it is possible to acquire valid video information more reliably without losing it.

In the above description, the information management unit 31 has shown a mode of selecting the received video information. However, the information management unit 31 may include the range information that specifies the range for requesting the transmission of the video information in the information request data and transmit the information. In this case, each drive recorder uses the position information of its own device to transmit video information when it detects that its own device exists within the range specified by the range information. By using this configuration and processing, the amount of communication between the communication device 30 and the plurality of drive recorders can be reduced. For example, even at an intersection with many vehicles, the information management unit 31 lacks effective video information. You can get it more reliably without letting it.

(Derivation example 1)
FIG. 10 is a diagram showing an outline of a derivative configuration of a traveling vehicle information collection system. In FIG. 10, the communication device 30 also receives video information from the information communication terminal 88 held by the pedestrian 880 near the intersection 90.

By using such a configuration, it is possible to obtain more video information for the vehicle 800 performing a dangerous act.

(Derivation example 2)
FIG. 11 is a functional block diagram showing a schematic configuration of a derivation of the entire system including the traveling vehicle information collection system. The traveling vehicle information collecting system 10A shown in FIG. 11 differs from the traveling vehicle information collecting system 10 shown in FIG. 2 in that a determination unit 34 is provided in the communication device 30A. The other configuration of the traveling vehicle information collecting system 10A is the same as that of the traveling vehicle information collecting system 10, and the description of the same parts will be omitted.

As shown in FIG. 11, the traveling vehicle information collecting system 10A includes a radio wave radar 20A and a communication device 30A. The radio wave radar 20A includes a sensor device 21. The communication device 30A includes an information management unit 31, a communication unit 32, a storage unit 33, a determination unit 34, and an antenna 320. The determination unit 34 has the same function as the radio wave radar 20 of the traveling vehicle information collection system 10. The determination unit 34 is connected to the sensor device 21 and is also connected to the traffic light 41 and the traffic light 42. The determination unit 34 connects to the information management unit 31. As described above, the determination unit 34 outputs the determination result of the vehicle performing the dangerous act to the information management unit 31.

As described above, the determination unit 34 may be provided in the communication device 30A, or may be provided in the radio wave radar as described above. Further, the determination unit 34 may be a device different from the radio wave radar and the communication device.

Further, the above-mentioned processing of the determination unit and the processing of the information management unit are programmed and stored, and may be realized by executing the program in an arithmetic processing unit such as a CPU.

10, 10A: Traveling vehicle information collection system 20, 20A: Radio radar 21: Sensor device 22: Judgment unit 30, 30A: Communication device 31: Information management unit 32: Communication unit 33: Storage unit 34: Judgment unit 41, 42: Signal 50: Data center 81, 82: Drive recorder 88: Information communication terminal 90: Intersection 320: Antenna 500: Network 800, 801, 802: Vehicle 811: Camera 812: Storage unit 813: Communication unit 880: Pedestrian 901, 902 :road

Claims (7)

A sensor installed near a specific position to detect the running state of a vehicle passing through the specific position,
A determination unit that determines dangerous driving using the detection result of the traveling state by the sensor and the signal information of the traffic light.
Information management that transmits information request data requesting an image of the specific position based on the determination of dangerous driving, acquires image information from a drive recorder corresponding to the information request data, and transmits it to a higher-level system. Department and
A traveling vehicle information collection system equipped with. The information management department
Information request data is transmitted to a drive recorder existing within a specific range with respect to the specific position.
The traveling vehicle information collection system according to claim 1. The information management department
Using the time information or position information attached to the video information, a plurality of acquired video information is selected and transmitted to the host system.
The traveling vehicle information collection system according to claim 1 or 2. The sensor is a radio wave radar.
The traveling vehicle information collection system according to any one of claims 1 to 3. A sensor installed near a specific position detects the running state of the vehicle passing through the specific position.
The judgment unit determines dangerous driving using the detected running condition of the vehicle and the traffic light information of the traffic light.
The information management unit transmits information request data requesting an image of the specific position based on the determination of dangerous driving.
The information management unit acquires video information from the drive recorder according to the information request data, and then
The information management unit transmits the video information to a higher-level system.
Traveling vehicle information collection method. The information management unit transmits information request data to a drive recorder existing within a specific range with respect to the specific position.
The traveling vehicle information collecting method according to claim 5. The information management unit selects a plurality of acquired video information by using the time information or the position information attached to the video information.
The information management unit transmits the selected video information to the higher-level system.
The traveling vehicle information collecting method according to claim 5 or 6.

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