JP7639735B2 - Dangerous driving vehicle detection device - Google Patents

Description

This invention relates to a device that identifies vehicles that are being driven dangerously by repeatedly performing sudden acceleration, sudden deceleration, or sharp turns.

Patent Document 1 describes a dangerous driving prevention device that is configured to determine whether or not the vehicle is driving dangerously based on the detection values of the steering, accelerator pedal, brake pedal, and other operating parts mounted on the vehicle, the vehicle speed, the distance to the vehicle ahead, etc., and if it is determined that the vehicle is driving dangerously, to limit the amount of accelerator operation depending on the number of times the vehicle has driven dangerously.

JP 2019-121243 A

The dangerous driving prevention device described in Patent Document 1 judges whether or not a vehicle is driving dangerously based on the driving operation of the vehicle itself. On the other hand, if a vehicle ahead or a following vehicle is driving dangerously, the vehicle may suddenly accelerate, brake, or steer in order to avoid the danger, or the distance between the vehicle and the vehicle ahead may suddenly decrease. Even if a driving operation is performed to avoid such danger, the dangerous driving prevention device described in Patent Document 1 may judge the vehicle to be driving dangerously based on the driving operation of the vehicle itself. If acceleration restrictions are implemented when dangerous driving is judged, this will limit the freedom of driving of vehicles that are not driving dangerously, which may cause discomfort to the driver.

This invention was made with a focus on the above technical problems, and aims to provide a dangerous driving vehicle detection device that can properly identify vehicles that are engaged in dangerous driving.

In order to achieve the above object, the present invention provides a reckless driving vehicle determination device that receives data on driving behavior of a specified vehicle and other vehicles traveling within a predetermined range of the specified vehicle and determines which vehicles are engaged in reckless driving, the device including a dangerous driving level determination unit that determines a level of dangerous driving of the specified vehicle based on the data on the driving behavior of the specified vehicle, a reporting unit that, when the level of dangerous driving of the specified vehicle determined by the dangerous driving level determination unit is equal to or higher than a predetermined level , reports to the police data identifying the specified vehicle and data that can determine the driving behavior of the specified vehicle, and a reporting unit that, when the level of dangerous driving of the specified vehicle determined by the dangerous driving level determination unit is equal to or higher than a predetermined level, reports to the police data identifying the specified vehicle and data that can determine the driving behavior of the specified vehicle. The system is characterized by comprising a data comparison unit that compares the data of the driving behavior with the data of the driving behavior of the other vehicle; a causing vehicle identification unit that determines whether the driving behavior of the specified vehicle is caused by the driving behavior of the other vehicle based on the data of the driving behavior of the specified vehicle and the data of the driving behavior of the other vehicle compared by the data comparison unit; a dangerous driving vehicle determination unit that determines that the specified vehicle is engaging in dangerous driving when the causing vehicle identification unit determines that the driving behavior of the specified vehicle is not caused by the driving behavior of the other vehicle; and an output limiting unit that limits the output of the specified vehicle, with permission from the police, when it is determined that the specified vehicle is engaging in dangerous driving .

According to this invention, data on the driving behavior of a specified vehicle is received, and the level of dangerous driving of the specified vehicle is determined based on the data on the driving behavior. If the level of dangerous driving of the specified vehicle is equal to or higher than a specified level, the driving behavior data of the specified vehicle and the other vehicle are compared to determine whether the driving behavior of the specified vehicle is caused by the driving behavior of the specified vehicle alone or by the driving behavior of the other vehicle, and based on the comparison result, it is determined whether the driving behavior of the specified vehicle is caused by the driving behavior of the other vehicle. Then, if it is determined that the driving behavior of the specified vehicle is not caused by the driving behavior of the other vehicle, it is determined that the specified vehicle is driving dangerously. In other words, if the driving behavior of the specified vehicle is caused by the driving behavior of the other vehicle, it is determined that the specified vehicle is not driving dangerously. In other words, if the specified vehicle is driving in a manner equivalent to dangerous driving in order to avoid danger due to dangerous driving of a preceding vehicle or a following vehicle, it can be excluded from the determination that the specified vehicle is driving dangerously. Therefore, it is possible to appropriately determine a vehicle that is driving dangerously due to the driver's intention.

1 is a schematic diagram for explaining an example of a dangerous-driving vehicle determination device according to an embodiment of the present invention; 4 is a flowchart for explaining an example of control executed by a reckless-driving vehicle determination device according to an embodiment of the present invention.

The present invention will be described below based on the embodiment shown in the drawings. Note that the embodiment described below is merely one example of how the present invention can be realized, and is not intended to limit the present invention.

Figure 1 shows a schematic diagram for explaining an example of a dangerous driving vehicle determination device in an embodiment of the present invention. The dangerous driving vehicle determination device 1 shown in Figure 1 is provided in a server 3 that can receive data from multiple vehicles 2. The server 3 shown in Figure 1 is provided so as to be able to communicate with multiple base stations 4 that can receive driving behavior data from vehicles 2 traveling within a predetermined range, and is configured to obtain driving behavior data of the vehicles 2 via the base stations 4.

The above driving behavior data is data required to determine whether dangerous driving is being performed, and includes, for example, acceleration, deceleration, steering angle and its angular velocity, the driving position of the vehicle 2, and the distance between the vehicles in front and behind. In addition to the above driving behavior data, the system is configured to be able to receive image data from a drive recorder or the like from a vehicle 2 that may be driving dangerously. That is, the amount of data transmitted from the vehicle 2 to the server 3 is limited, and if it is determined that dangerous driving is likely being performed, the system is configured to lift the limit on the amount of data transmitted from the vehicle 2 to the server 3, allowing the server 3 to receive information with a relatively large amount of data, such as image data.

The dangerous driving vehicle determination device 1 provided in the server 3 includes a dangerous driving level determination unit 5 that determines the level of dangerous driving of the vehicle 2, a reporting unit 7 that reports to the police 6, a data comparison unit 8 that compares data on the driving behavior of at least two vehicles 2, a causing vehicle identification unit 9 that determines whether the driving behavior of the vehicle 2 is equivalent to dangerous driving due to the driving behavior of another vehicle 2, a dangerous driving vehicle determination unit 10 that determines whether the vehicle 2 is engaged in dangerous driving, and an output limiting unit 11 that outputs a signal to limit the driving force of the vehicle 2.

The dangerous driving level determination unit 5 is configured to determine the dangerous driving level of each vehicle 2 based on the driving behavior data input to the server 3. For example, a plurality of dangerous driving levels according to the magnitude of acceleration and deceleration are predefined, and the dangerous driving level of the vehicle 2 is determined by comparing the data input to the server 3 with the predefined dangerous driving levels. Similarly, the dangerous driving level may be determined based on the steering angle and its angular velocity. Furthermore, since dangerous driving can be assumed to be a combination of acceleration/deceleration operations and steering operations, a map for determining the dangerous driving level using the acceleration/deceleration and steering angle as parameters may be constructed, and the dangerous driving level may be determined by referring to the map. Alternatively, the dangerous driving level may be determined based on a model predefined by machine learning. Specifically, a test run according to each stage of the dangerous driving level may be performed, and a model for determining the dangerous driving level may be predefined by supervised learning using the driving behavior data such as the acceleration/deceleration and steering angle acquired at that time as input data, and the dangerous driving level may be determined based on the driving behavior data input to the server 3 and the above-mentioned constructed model.

The reporting unit 7 is configured to report to the police 6 information about the vehicle 2 (hereinafter, referred to as specific vehicle B) whose driving behavior is determined by the dangerous driving level determination unit 5 to be equivalent to dangerous driving. Specifically, the reporting unit 7 transmits to the police 6 data that can identify the specific vehicle B, such as the driving position of the specific vehicle B, and data that can determine the driving behavior of the specific vehicle B, such as driving behavior data. Furthermore, if the specific vehicle B is equipped with a drive recorder, the image data from the drive recorder is transmitted in addition to the driving behavior data, etc.

The data comparison unit 8 is configured to compare the driving behavior data of the specific vehicle B with the driving behavior data of a vehicle 2 (hereinafter, referred to as other vehicle A) in the vicinity of the specific vehicle B. Specifically, the data of the driving behavior of the specific vehicle B is compared with the driving behavior data of the other vehicle A within an area (predetermined range) receivable by the base station 4 that receives data from the specific vehicle B. This is because there is a possibility that the driving behavior of the specific vehicle B is determined to be a driving behavior equivalent to dangerous driving due to a driving operation for avoiding a collision with the other vehicle A or an obstacle.

The causing vehicle identification unit 9 is configured to determine whether the driving behavior of the specific vehicle B is equivalent to dangerous driving due to driving operations to avoid a collision with the other vehicle A or an obstacle, from the driving behavior data compared by the data comparison unit 8. That is, it is configured to determine whether the driving behavior of the specific vehicle B is equivalent to dangerous driving due to the driving behavior of the other vehicle A. Specifically, it determines whether the driving behavior of the specific vehicle B is equivalent to dangerous driving due to the driving behavior of the other vehicle A, based on the time series of the driving behavior of the other vehicle A and the driving behavior of the specific vehicle B, such as whether the specific vehicle B accelerates or decelerates after the other vehicle A suddenly accelerates or decelerates, and whether the specific vehicle B operates the steering wheel after the other vehicle A suddenly operates the steering wheel.

In addition, based on a model previously constructed by machine learning, it may be determined whether the driving behavior of the specific vehicle B is equivalent to dangerous driving due to a driving operation to avoid a collision with another vehicle A or an obstacle. Specifically, driving behavior data as test data of the dangerously driven vehicle and driving behavior data as test data of a vehicle following the dangerously driven vehicle, running in front of the dangerously driven vehicle, or running alongside the dangerously driven vehicle are previously acquired, and a model for determining whether the driving operation to avoid a collision with the dangerously driven vehicle is equivalent to dangerous driving is previously constructed by supervised learning using the acquired data as input data, and it may be determined whether the driving operation of the specific vehicle B to avoid a collision with the other vehicle A or an obstacle is equivalent to dangerous driving due to the driving operation.

The dangerous driving vehicle determination unit 10 is configured to determine the specific vehicle B as a vehicle engaged in dangerous driving when the cause vehicle identification unit 9 determines that the driving behavior of the specific vehicle B is not due to driving operations intended to avoid a collision with another vehicle A or an obstacle.

The output limiting unit 11 is configured to limit the output of the specific vehicle B when the recklessly driven vehicle determination unit 10 determines that the specific vehicle B is a vehicle engaged in reckless driving. Specifically, when the driving position of the specific vehicle B is a position where it can be stopped, the output limiting unit 11 is configured to stop the specific vehicle B, and when it is not a position where it can be stopped, the output limiting unit 11 is configured to limit the output of the driving force source by, for example, setting an upper vehicle speed limit.

Figure 2 shows a flowchart for explaining an example of control executed by the dangerous driving vehicle determination device 1. In the control example shown in Figure 2, first, the dangerous driving level is determined from the driving behavior data of a specified vehicle 2 (step S1). This step S1 can be determined by the dangerous driving level determination unit 5. Note that the specified vehicle 2 for which the dangerous driving level is determined does not include vehicles that are running on private land such as a circuit based on position information, etc.

Next, it is determined whether the dangerous driving level determined in step S1 is equal to or higher than a predetermined level (step S2). This step S2 is a step for determining whether the driving behavior is at a level that is dangerous to surrounding vehicles, and therefore the predetermined level in step S2 may be a level determined by test driving or the like.

If the dangerous driving level determined in step S1 is below the predetermined level and therefore step S2 is negatively determined, this routine is terminated. In other words, the vehicle 2 whose dangerous driving level has been determined in step S1 is determined not to be driving dangerously.

On the other hand, if the dangerous driving level determined in step S1 is equal to or higher than the predetermined level and thus the affirmative determination is made in step S2, the police 6 is notified (step S3). This step S3 is executed by the notification unit 7. That is, the driving behavior of the vehicle 2 whose dangerous driving level has been determined in step S1 is determined to be that of a specific vehicle B, which is a driving behavior equivalent to dangerous driving, and data that can identify the specific vehicle B and data that can determine the driving behavior of the specific vehicle B are transmitted to the police 6. Furthermore, the restriction on the communication volume of data transmitted from the specific vehicle B to the server 3 is lifted, and image data from the drive recorder mounted on the specific vehicle B is transmitted to the police 6.

Next, it is determined whether or not there is a vehicle 2 around the specific vehicle B whose dangerous driving level is equal to or higher than a predetermined level (step S4). In this step S4, for example, the dangerous driving level of the other vehicle is determined in the same manner as in step S1 above, based on data on the driving behavior of the other vehicle acquired by a base station 4 that communicates with the specific vehicle B, and it is also determined whether or not the dangerous driving level is equal to or higher than a predetermined level.

If the result of step S4 is negative because there is no vehicle 2 with a dangerous driving level equal to or higher than a predetermined level among the vehicles 2 around the specific vehicle B, it is considered that the specific vehicle B is driving dangerously alone or the driver of the specific vehicle B is intentionally driving dangerously. Therefore, the specific vehicle B is identified or determined as a dangerous driving vehicle, and the output of the specific vehicle B is restricted after obtaining permission from the police 6. Specifically, it is determined whether the specific vehicle B is traveling in a section where it can stop (step S5). This step S5, for example, identifies the traveling position of the specific vehicle B based on map information that can be obtained by a GPS or a navigation system, and determines whether the section is a stoppable section based on the laws and regulations set for the traveling position. Alternatively, the position information of the vehicle 2 obtained by the base station 4 and the position information of the specific vehicle B may be used to determine whether traffic is congested using artificial intelligence or the like, and whether it is possible to stop.

If the answer to step S5 is affirmative because specific vehicle B is traveling in a section where it can stop, the output of specific vehicle B is restricted to stop specific vehicle B (step S6), and this routine is temporarily terminated. Conversely, if the answer to step S5 is negative because specific vehicle B is not traveling in a section where it can stop, the output of specific vehicle B is restricted so that the vehicle speed of specific vehicle B can be limited (step S7), and this routine is temporarily terminated.

On the other hand, if the answer to step S4 is affirmative because there is a vehicle 2 with a dangerous driving level equal to or higher than a predetermined level among the vehicles 2 around the specific vehicle B, it is determined whether the driving behavior of the specific vehicle B is a driving behavior equivalent to dangerous driving due to the driving behavior of the surrounding vehicles 2. Specifically, first, the vehicle causing the dangerous driving is identified from among the specific vehicle B and a vehicle (hereinafter referred to as the other vehicle A) whose dangerous driving level determined in step S4 is equal to or higher than a predetermined level (step S8). The causing vehicle in step S8 can be identified by the data comparison unit 8 and the causing vehicle identification unit 9. That is, the data of the driving behavior of the specific vehicle B and the other vehicle A are compared by the data comparison unit 8, and if the causing vehicle identification unit 9 determines based on the compared data that the driving behavior of the specific vehicle B is not due to a driving operation for avoiding a collision with the other vehicle A or an obstacle, the specific vehicle B is identified as the causing vehicle, and if the driving behavior of the specific vehicle B is determined to be due to a driving operation for avoiding a collision with the other vehicle A or an obstacle, the other vehicle A is identified as the causing vehicle.

Next, it is determined whether the causing vehicle identified in step S8 is specific vehicle B or not (step S9), and if the cause vehicle is specific vehicle B and the determination in step S9 is affirmative, the process proceeds to step S5. That is, it is determined that specific vehicle B is the vehicle engaging in reckless driving, and the output of specific vehicle B is restricted. On the other hand, if the cause vehicle identified in step S8 is not specific vehicle B and the determination in step S9 is negative, the routine is immediately terminated. That is, it is determined that reckless driving is not being engaged in.

As described above, the data on the driving behavior of the specific vehicle B is received, and the level of dangerous driving of the specific vehicle B is determined based on the data on the driving behavior. If the level of dangerous driving of the specific vehicle B is equal to or higher than a predetermined level, the data on the driving behavior of the specific vehicle B and the other vehicle A are compared to determine whether the driving behavior of the specific vehicle B is caused by the driving behavior of the other vehicle A or not based on the comparison result. Then, if it is determined that the driving behavior of the specific vehicle B is not caused by the driving behavior of the other vehicle A, it is determined that the specific vehicle B is performing dangerous driving. In other words, if the driving behavior of the specific vehicle B is caused by the driving behavior of the other vehicle A, it is determined that the specific vehicle B is not performing dangerous driving. In other words, if the specific vehicle B is performing dangerous driving due to the driving behavior of the front vehicle or the following vehicle, in order to avoid danger, the specific vehicle B can be excluded from the determination that it is performing dangerous driving. Therefore, it is possible to appropriately determine a vehicle that is performing dangerous driving due to the driver's intention.

REFERENCE SIGNS LIST 1 Reckless driving vehicle determination device 2 Vehicle 3 Server 4 Base station 5 Reckless driving level determination unit 6 Police 7 Reporting unit 8 Data comparison unit 9 Causing vehicle identification unit 10 Reckless driving vehicle determination unit 11 Output restriction unit A Other vehicle B Specific vehicle

Claims (1)

A dangerous driving vehicle determination device that receives driving behavior data of a predetermined vehicle and other vehicles traveling within a predetermined range of the predetermined vehicle and determines a vehicle that is driving dangerously,
a dangerous driving level determination unit that determines a level of dangerous driving of the specified vehicle based on the driving behavior data of the specified vehicle;
a reporting unit that reports data identifying the specified vehicle and data that can be used to judge the driving behavior of the specified vehicle to the police when the level of dangerous driving of the specified vehicle determined by the dangerous driving level determination unit is equal to or higher than a predetermined level;
a data comparison unit that compares the driving behavior data of the predetermined vehicle with the driving behavior data of the other vehicle when the level of dangerous driving of the predetermined vehicle determined by the dangerous driving level determination unit is equal to or higher than the predetermined level ;
a cause vehicle identification unit that determines whether or not the driving behavior of the specified vehicle is caused by the driving behavior of the other vehicle based on the data of the driving behavior of the specified vehicle and the data of the driving behavior of the other vehicle compared by the data comparison unit;
a reckless driving vehicle determination unit that determines that the specific vehicle is engaged in reckless driving when the causing vehicle identification unit determines that the driving behavior of the specific vehicle is not caused by the driving behavior of the other vehicle ; and
an output limiting unit that, when it is determined that the predetermined vehicle is being driven recklessly, limits the output of the predetermined vehicle with the permission of the police;
A dangerous driving vehicle determination device comprising :

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