JP7342382B2 - Traffic accident recording system and method of providing traffic accident information - Google Patents

Description

The present embodiment relates to a traffic accident recording system and a method for providing traffic accident information.

2. Description of the Related Art A device described in Patent Document 1, for example, is known as a traffic accident situation recording device that records an image when a traffic accident occurs and is used in verification work performed after the accident occurs. The recording device disclosed in Patent Document 1 detects the collision sound and brake sound that occur when an accident occurs, determines that a traffic accident has occurred based on these sounds, and then captures the image using a camera installed at an intersection, for example. It is disclosed that the image recorded in the image is recorded.

Japanese Patent Application Publication No. 2016-192072

However, in the above-mentioned conventional example, although it is described that images at the time of a traffic accident are stored, it is later mentioned that the images will be used as records when an insurance company investigates the circumstances at the time of the accident. It has not been.

The present embodiment has been developed to solve such conventional problems, and its purpose is to easily obtain information on a desired traffic accident case among the many traffic accidents that have occurred in the past. The object of the present invention is to provide a retrievable traffic accident recording system and a method for providing traffic accident information.

In order to achieve the above object, a traffic accident recording system according to one aspect is a traffic accident recording system that records the situation at the time of the traffic accident when the traffic accident occurs, and is installed around the driving route. , a sensor that detects moving objects including pedestrians, two-wheeled vehicles, and vehicles existing on the travel route, and movement that is data including the position and speed of the moving object based on sensor data detected by the sensor. a mobile object analysis section that detects body data; a traffic accident determination section that determines whether a traffic accident has occurred in the mobile object based on at least one of the position and speed of the mobile object; and the traffic accident determination section. When it is determined that a traffic accident has occurred in the department, a database that stores the above-mentioned moving object data during the traffic accident occurrence time period, which is a predetermined time period including the time when the traffic accident occurred, and a user When at least one of the time of occurrence and location of the accident is specified, a traffic accident list is created that is a list containing moving object data corresponding to the time of occurrence or location of the traffic accident stored in the database. The present invention is characterized by being equipped with a traffic accident search section.

Further, a method for presenting traffic accident information according to one embodiment is a method for providing traffic accident information that, when a traffic accident occurs, records the situation at the time of occurrence of the traffic accident and provides the recorded traffic accident information to a user. The moving object analysis unit detects the position and speed of moving objects including pedestrians, two-wheeled vehicles, and vehicles existing on the driving path, which are detected by sensors installed around the driving path. a step of acquiring data; a step of the traffic accident determination unit determining whether or not a traffic accident has occurred in the mobile body based on the mobile body data; , a step in which the traffic accident determination unit stores the mobile object data in a traffic accident occurrence time period, which is a predetermined time period including the time when the traffic accident occurred, in a database; When at least one of the occurrence locations is specified, the traffic accident search unit reads the mobile object data in the traffic accident occurrence time period from the database and searches for the traffic accident that occurred at the specified occurrence time or occurrence location. a step of creating a traffic accident list that is a list including the traffic accident list; a step of an output unit presenting the created traffic accident list to the user; and a charging unit providing compensation for providing the traffic accident list to the user. The method is characterized by comprising a step of charging.

According to this embodiment, it is possible to easily retrieve information on a desired traffic accident case from among a large number of traffic accidents that have occurred in the past.

FIG. 1 is a block diagram showing the configuration of a traffic accident recording system according to the first embodiment. FIG. 2 is an explanatory diagram showing an image created by the image creation unit at time t1 when a traffic accident occurs. FIG. 3 is an explanatory diagram showing an image created by the image creation unit at time t2 when the traffic accident occurs. FIG. 4 is an explanatory diagram showing an image created by the image creation unit at time t3 when the traffic accident occurs. FIG. 5 is a flowchart showing the processing procedure of the traffic accident recording system according to the first embodiment. FIG. 6 is a flowchart showing the processing procedure by the user interface of the traffic accident recording system according to the first embodiment. FIG. 7 is an explanatory diagram showing an example of a traffic accident list created by the traffic accident search unit. FIG. 8 is a block diagram showing the configuration of a traffic accident recording system according to a modification of the first embodiment. FIG. 9 is a block diagram showing the configuration of a traffic accident recording system according to the second embodiment. FIG. 10 is a flowchart showing the processing procedure of the traffic accident recording system according to the second embodiment. FIG. 11 is a flowchart showing the processing procedure by the user interface of the traffic accident recording system according to the second embodiment. FIG. 12 is a block diagram showing the configuration of a traffic accident recording system according to the third embodiment. FIG. 13 is a flowchart showing the processing procedure by the user interface of the traffic accident recording system according to the third embodiment. FIG. 14 is a flowchart showing the processing procedure by the administrator server of the traffic accident recording system according to the third embodiment.

Hereinafter, embodiments will be described based on the drawings.
[Description of the first embodiment]
FIG. 1 is a block diagram showing the configuration of a traffic accident recording system according to the first embodiment. As shown in FIG. 1, a traffic accident recording system 101 according to the first embodiment records the situation when a traffic accident occurs, and includes a sensor 1, a control device 2, and a user interface 3. . Note that in the figure, "interface" is expressed as "I/F".

In addition, in each of the above-mentioned components, only the sensor 1 needs to be provided around the travel path, and the control device 2 may be installed in a base station that can communicate with the sensor 1 by wire or wirelessly. Further, the user interface 3 is provided at a location where it can communicate with the control device 2 by wire or wirelessly. Furthermore, it is also possible to configure the control device 2 to be provided on a virtual server in a network cloud. The control device 2 can also be configured as an integrated computer comprising a central processing unit (CPU) and storage means such as RAM, ROM, and hard disk.

The sensor 1 is installed around a road on which vehicles and pedestrians travel, and detects moving objects such as vehicles, bicycles, and pedestrians present on the road. The travel road includes roads on which moving objects travel, and intersections such as crossroads, T-junctions, and three-way intersections. Further, sensor data, which is data detected by the sensor 1, is output to a moving object analysis section 21, which will be described later. The sensor 1 is, for example, a laser radar, and detects objects in the surroundings by emitting laser light toward the surroundings and receiving reflected light from objects in the surroundings.

Therefore, as will be described later, it is possible to recognize the shape and size of the moving object on the travel path based on the sensor data detected by the sensor 1. Furthermore, the type of moving object, that is, the type of vehicle, two-wheeled vehicle (bicycle or motorcycle), pedestrian, etc. can be determined. Furthermore, the position and moving speed of the moving object can be recognized. In this embodiment, an example in which a laser radar is used as the sensor 1 will be described, but the sensor 1 is not limited to this, and it is also possible to use a lidar, a visible camera, an RGBD camera, an infrared camera, etc.

Further, it is also possible to install a microphone attached to the sensor 1 to detect sounds around the traveling route. Furthermore, the sensor 1 is not limited to one sensor; for example, two laser radars may be installed at one monitoring point, or different types of sensors, such as a laser radar and a visible camera, may be used together. .
The control device 2 includes a moving object analysis section 21, a traffic accident determination section 22, a database 23, a traffic accident search section 24, and an image creation section 25.

The moving object analysis unit 21 identifies the type of moving object based on the sensor data detected by the sensor 1. Specifically, the lateral length or vertical length of the moving object is detected based on the reflected pulse reflected by the moving object and detected by the laser radar, and for example, the lateral length is set in advance. If the length is longer than a certain length, the moving object is determined to be a vehicle. Furthermore, if the length in the lateral direction is longer than the vehicle described above, it is determined that the vehicle is a large vehicle (such as a truck).

Furthermore, the position and speed of the moving body are calculated based on the above sensor data. The speed of a moving object can be calculated based on the amount of change in the position of the same moving object detected by sensor data obtained at different timings among sensor data obtained in time series. Note that hereinafter, data on the type, position, and speed of a moving object will be collectively referred to as "moving object data."

Then, the calculated moving object data is output to the traffic accident determination section 22. Further, when a moving object is present at an intersection, a preset intersection ID is added to the above moving object data and output. Further, if the sensor 1 is equipped with a microphone, the voice data detected by the microphone is added to the mobile object data and output to the traffic accident determination section 22.

That is, the moving object analysis unit 21 has a function of detecting moving object data, which is data including the position and speed of the moving object, based on the sensor data detected by the sensor 1.

The traffic accident determination section 22 determines whether a traffic accident has occurred based on data on the type, position, and speed of the moving object detected by the moving object analysis section 21. As a method for determining the occurrence of a traffic accident, for example, the methods shown in (a), (b), and (c) below can be adopted.
(a) Obtain information on the positions of two moving bodies detected by the moving body analysis unit 21, and if the positions of the two moving bodies overlap at the same time, the two moving bodies have collided, It is determined that a traffic accident has occurred.

(b) Calculate the time to collision (TTC) between the two moving bodies, and if the moving bodies are not decelerated even after the collision time of the two moving bodies has passed, the two moving bodies will collide. It is determined that a traffic accident has occurred.

(c) Communication (road-to-vehicle communication) is performed with a vehicle (mobile object) traveling on the road, and when the airbag of the vehicle is activated, this activation signal is acquired. If the airbag is activated, it is determined that a traffic accident has occurred in this vehicle.
Note that the method for detecting the occurrence of a traffic accident is not limited to the above method, and various methods can be used.

That is, the traffic accident determination unit 22 has a function of determining whether a traffic accident has occurred in a moving object based on at least one of the position and speed of the moving object.

The database 23 stores, when the traffic accident determining unit 22 determines that a traffic accident has occurred using the above method, data on the moving object that caused the traffic accident, that is, the type of the moving object (vehicle, motorcycle, pedestrian, etc.). etc.), the location where the traffic accident occurred, the speed of each moving object at the time of the traffic accident, and store these data.

Note that the present invention is not limited to storing moving body data before and after the time when the traffic accident occurred; for example, it is also possible to store moving body data for a predetermined time before the time when the traffic accident occurred, or for a predetermined time after the time when the traffic accident occurred. good.

That is, when the traffic accident determination unit 22 determines that a traffic accident has occurred, the database 23 stores moving object data in the traffic accident time period, which is a predetermined time period including the time when the traffic accident occurred. It has a memorization function.

Furthermore, if the location where the traffic accident occurred is an intersection, the intersection ID of this intersection is acquired from the traffic accident determination unit 22, and the acquired intersection ID is stored. Furthermore, if the sensor 1 is equipped with a microphone, it stores audio data detected by the microphone during a predetermined period of time before and after the traffic accident occurrence time.

Therefore, the database 23 contains moving object data regarding each traffic accident that occurs on the driving route, that is, the type of moving object that caused the traffic accident, the location and time of occurrence of the traffic accident for each traffic accident. , the speed of the moving object before and after the occurrence of the traffic accident, and the intersection ID are stored. Furthermore, if a microphone is attached to the sensor 1, audio data before and after the occurrence of a traffic accident is stored. Note that the traffic accident information regarding each traffic accident described above for each traffic accident case is hereinafter referred to as "traffic accident data."

When a user inputs a search request for traffic accident cases through the user interface 3 (details will be described later), the traffic accident search unit 24 searches for traffic accidents that include traffic accident data that meets the conditions of the search request. A case is searched from the database 23. Furthermore, the searched traffic accident cases are output to the user interface 3.

For example, when the intersection ID where the traffic accident to be searched for has occurred and the date and time when the traffic accident occurred are input from the user interface 3, the traffic that occurred in the past at the intersection corresponding to the input intersection ID is displayed. Search traffic accident data for accident cases. Furthermore, a search is made for traffic accident cases that match the date and time of the traffic accident. Then, a list of traffic accident cases that meet the above conditions is created and output as a traffic accident list. If there are multiple traffic accident cases that match the conditions, a traffic accident list of all traffic accident cases is output. Note that the "traffic accident that occurred in the past" may be, for example, a traffic accident that occurred a predetermined period (for example, one month) back from the time when the search request was input by the user.

That is, when the user specifies at least one of the time of occurrence and location of the traffic accident, the traffic accident search unit 24 searches for a movement corresponding to the time of occurrence or location of the traffic accident stored in the database 23. It has a function to create a traffic accident list, which is a list containing body data.

When the user inputs an image output request through the user interface 3, the image creation unit 25 reads traffic accident data regarding the traffic accident case searched by the traffic accident search unit 24 described above from the database 23. Based on the read traffic accident data, an image (for example, a moving image) of the traffic accident occurring at the time of the traffic accident is created and output to the user interface 3.

For example, when a desired traffic accident case is selected by the user interface 3 from the traffic accident list searched by the traffic accident search unit 24, the mobile object included in the traffic accident data of the selected traffic accident case is displayed. Based on the position and speed, a moving image of the moving object during the time period when the traffic accident occurred is created using CG (computer graphics), etc., and output to the user interface 3.
Further, if the sensor 1 is equipped with a microphone and the microphone detects audio, a moving image including audio data is created.

That is, when the user specifies at least one of the time and position of the traffic accident, the image creation unit 25 generates a moving body corresponding to the time or position of the traffic accident stored in the database 23. It has the ability to read data and create images (still images, videos) related to traffic accidents based on the read mobile object data.

2 to 4 are explanatory diagrams showing examples of moving images created by the image creation unit 25 at a certain intersection. FIG. 2 is an image at time t1, FIG. 3 is an image at time t2, and FIG. 4 is an image at time t3. It shows images, that is, time-series images. As shown in FIG. 2, at time t1, vehicles V1 and V2 are traveling with a constant inter-vehicle distance. At time t2 (FIG. 3) after a certain period of time has elapsed, the inter-vehicle distance between vehicles V1 and V2 becomes shorter, and at time t3 (FIG. 4) at which a further certain period of time has elapsed, vehicles V1 and V2 have collided. In other words, a traffic accident has occurred.

The image creation unit 25 creates images from times t1 to t3 as moving images, as shown in FIGS. 2 to 4, and outputs them to the user interface 3. At this time, the speeds of vehicles V1 and V2 are displayed. For example, "○○km/h" is displayed. Further, although not shown, the speeds of the vehicles V1 and V2 may be displayed by the length of the arrow. Specifically, the faster the speed, the longer the arrow is displayed.

In this embodiment, an example in which the image creation unit 25 creates a moving image will be described, but the present invention is not limited to this, and one or more still images may be created.

Returning to FIG. 1, the user interface 3 includes an input section 31 that can be operated by the user, and an output section 32 that presents various information to the user, and allows access to the control device 2 to determine the desired traffic accident information. Perform an operation to obtain a list of traffic accidents related to a case, or a video or still image at the time of a traffic accident.

The input unit 31 is a keyboard, a mouse, a touch pen, or the like. The output unit 32 is a display, a printer, or the like. Furthermore, it is also possible to include a speaker that outputs the sound detected by the microphone.

Then, when the user inputs, for example, an intersection ID and the date and time of occurrence of a traffic accident as a traffic accident search request in the input unit 31, a traffic accident list of traffic accident cases matching these input data is obtained and output. The information is output from the unit 32 (for example, a printer).

As an example of the input operation, an image for inputting or selecting an intersection ID, date, and time zone is displayed on the display, and the input operation can be performed using this display screen. Note that the user interface 3 may be accessed locally on the server machine, or may be configured to be accessed via a network.

[Operation description of the first embodiment]
Next, the processing procedure of the traffic accident recording system 101 according to the first embodiment configured as described above will be explained with reference to the flowchart shown in FIG. 5.
First, in step S11, the sensor 1 detects moving objects existing around the travel path. Sensor data detected by the sensor 1 is output to the mobile object analysis section 21. For example, when the sensor 1 is a laser radar, the sensor data indicates received light data (for example, point group data) of reflected light reflected by an object from a laser emitted from the laser radar. In addition, when the sensor 1 is provided with a microphone, audio data detected by the microphone is added to the sensor data and output to the mobile object analysis section 21.

In step S12, the moving object analysis unit 21 identifies the type of each moving object, that is, whether it is a vehicle, a two-wheeled vehicle, or a pedestrian, based on the sensor data about each moving object detected by the sensor 1. Furthermore, the position and speed of each moving object are calculated based on the sensor data. Furthermore, if the detected moving object is present at an intersection (T-junction, crossroads, etc.), the intersection ID of this intersection is specified in step S13. Data such as the type, position, speed, and intersection ID of the moving object (moving object data) are output to the traffic accident determination section 22 .

In step S14, the traffic accident determination unit 22 determines whether a traffic accident has occurred in the mobile body using the method described above, based on the position and speed of the mobile body calculated by the mobile body analysis unit 21. If the occurrence of a traffic accident is not detected (S15; NO), this process ends.

On the other hand, if the occurrence of a traffic accident is detected (S15; YES), in step S16, the traffic accident determination unit 22 determines the date and time when the traffic accident occurred, the position and speed of the moving object, the intersection ID, the voice The traffic accident data including , is output and stored in the database 23.

In this way, whenever the occurrence of a traffic accident is detected, traffic accident data regarding this traffic accident case is stored and accumulated in the database 23. That is, the database 23 stores traffic accident data for each traffic accident case.

Thereafter, in step S17, the traffic accident search unit 24 determines whether a traffic accident search request has been issued from the user interface 3.

If a search request has occurred (S17; YES), the traffic accident search unit 24 creates a traffic accident list and outputs it to the user interface 3 in step S18. Specifically, when an intersection ID where a traffic accident occurred is input as a search request, the traffic accident search unit 24 searches for traffic accident cases that occurred within a certain period in the past at the intersection corresponding to this intersection ID. The database 23 is accessed and searched to create a traffic accident list in which traffic accident data regarding the relevant traffic accident case is entered. Furthermore, the created traffic accident list is output to the user interface 3. Additionally, when the date and time of the accident (date, time) is input as a search request, the system searches for traffic accident cases corresponding to this date and time of occurrence, creates a traffic accident list, and outputs it to the user interface 3. .

FIG. 7 is a diagram showing an example of a display of a traffic accident list. For example, various information such as the date, time, location, type of moving object, speed at the time of the accident, etc., of the traffic accident may be displayed on the printed matter output from the printer. Contains traffic accident data.

In step S19, the image creation unit 25 determines whether an image display request has been issued from the user interface 3. If an image display request has not occurred (S19; NO), this process ends.

On the other hand, if an image display request has been made (S19; YES), the image creation unit 25 creates and outputs an image (for example, a video) of the traffic accident case to be searched for in step S20. Specifically, when an image display request is input, the image creation unit 25 generates an image based on the position and speed of the moving object from the traffic accident data regarding the traffic accident case searched in the process of step S18. , create an image when a traffic accident occurs. For example, the videos shown in FIGS. 2 and 3 described above are created. Furthermore, the created moving image is output to the user interface 3. After that, this process ends.

Next, the processing procedure by the user interface 3 will be explained with reference to the flowchart shown in FIG. First, in step S31, the user interface 3 receives a search input for traffic accidents from the user.

Next, in step S32, the user interface 3 determines whether a search request for a traffic accident has been input. If no search request has been input (S32; NO), this process ends.

On the other hand, if a search request has been input (S32; YES), in step S33, the user interface 3 outputs the search request to the traffic accident search unit 24, and the traffic accident search unit 24 selects the traffic accident information. Get list. As described above, the traffic accident search request includes information such as the intersection where the traffic accident occurred and the time period during which the traffic accident occurred. Further, the traffic accident list is created in the process of step S18 in FIG. 5 described above.

In step S34, the user interface 3 presents the traffic accident list to the output unit 32. For example, if the output unit 32 is a display, a traffic accident list is displayed on the display. Therefore, by looking at the display, the user can recognize the traffic accident data related to the traffic accident case to be searched. Further, when the output unit 32 is a printer, it outputs a printed matter on which the traffic accident list is printed (see FIG. 7). Therefore, the user can recognize the traffic accident data related to the traffic accident case to be searched by looking at the printed matter.

In step S35, the user interface 3 accepts the display of an image of a traffic accident, and further in step S36, the user interface 3 determines whether a request to display an image (for example, a video) of a traffic accident has been input. to decide. If an image display request has not been input (S36; NO), this process ends.

On the other hand, if an image display request has been input (S36; YES), in step S37, the user interface 3 outputs an image display request to the image creation section 25, and the image creation section 25 Obtain images at the time of a traffic accident. As described above, the image is created in the process of step S20 in FIG.

In step S38, the user interface 3 displays an image at the time of the traffic accident on the output unit 32. For example, when the output unit 32 is a display, an image at the time of a traffic accident is displayed on the display. Therefore, by looking at the display, the user can visually recognize images related to traffic accident cases that are search targets.

[Description of effects of the first embodiment]
In this way, in the traffic accident recording system 101 according to the first embodiment, the sensor 1 is installed around the running road on which the vehicle travels, detects moving objects existing on the running road, and furthermore detects the detected moving objects. Based on the type, position, and speed of the vehicle, it is determined whether a traffic accident has occurred. If it is determined that a traffic accident has occurred, traffic accident data regarding this traffic accident is stored in the database 23. When a search request for a traffic accident is input from the user interface 3, traffic accident cases that match the search request conditions are searched from a large number of traffic accidents that have occurred in the past, and the searched traffic accident is searched. Create a traffic accident list for a case and present it to the user.

Therefore, the user can easily search for a desired traffic accident case, obtain traffic accident data, that is, various data such as the type of the moving object that caused the traffic accident, the position and speed of the moving object, and the intersection ID, can be recognized. Furthermore, when the sensor 1 is equipped with a microphone and the output section 32 is equipped with a speaker, it is possible to recognize the voice at the time of a traffic accident, and the situation at the time of a traffic accident can be recognized with higher accuracy.

Furthermore, when a request for outputting an image (for example, a video) is input through the user interface 3, images before and after the time of occurrence of the traffic accident that match this output request are created and sent to the output unit 32 of the user interface 3. will be displayed at Therefore, the user can visually recognize the situation of a desired traffic accident case by viewing the image, and can know the situation at the time of the traffic accident in more detail.

Therefore, for example, when an insurance company investigator wants to know the circumstances at the time of a traffic accident, he/she can obtain traffic accident data related to the desired traffic accident case (for example, the time of the accident, the position and speed of the accident vehicle), and the traffic accident occurrence. It is possible to easily obtain images at the time of the traffic accident, and it becomes possible to easily recognize the situation at the time of the traffic accident. Furthermore, since an image showing the desired traffic accident situation is provided, an insurance company investigator can use it to determine the percentage of fault.

Furthermore, since the speed of the moving object is superimposed on the video as an icon such as an arrow or as a numerical value, it is possible to easily recognize at what speed the traffic accident occurred.

In this embodiment, a vehicle is used as an example of a moving object, and a traffic accident in which vehicles collided with each other has been explained. However, a traffic accident between a vehicle and a motorcycle, a traffic accident between a vehicle and a pedestrian, a motorcycle Similarly, a list of traffic accidents and images of traffic accidents between two vehicles and between two-wheeled vehicles and pedestrians can be provided to the user.

[Description of modification of the first embodiment]
Next, a modification of the first embodiment described above will be described. FIG. 8 is a block diagram showing the configuration of a traffic accident recording system 101a according to the second embodiment. In this modification, a communication unit 26 is provided that performs communication (also referred to as road-to-vehicle communication) between the control device 2a and each vehicle. The communication section 26 is connected to the traffic accident determination section 22. The communication unit 26 receives an airbag activation signal indicating that the airbag of the vehicle has activated by communicating with the vehicle.

Then, as a moving object detected by the moving object analysis unit 21, when the positional relationship of two vehicles approaches or overlaps, and an airbag activation signal is output from one of the two vehicles, , it is determined that this vehicle has collided with another vehicle and a traffic accident has occurred. That is, the occurrence of a traffic accident is detected based on the activation signal of the airbag.

In this way, the traffic accident recording system 101a according to the modified example receives the airbag activation signal output from the vehicle and determines whether a traffic accident has occurred based on the airbag activation signal, so it can achieve higher accuracy. It becomes possible to detect the occurrence of traffic accidents.

[Description of second embodiment]
Next, a second embodiment will be described. FIG. 9 is a block diagram showing the configuration of a traffic accident recording system 102 according to the second embodiment. The second embodiment differs from the first embodiment described above in that it includes a sensor data storage unit 27 that continuously stores sensor data detected by the sensor 1, and that the sensor Traffic accident data is created from the sensor data stored in the data storage unit 27 and provided to the user, and images related to traffic accidents are created from the sensor data and provided to the user in response to an image display request from the user. The difference is in what they offer. This will be explained in detail below.

As shown in FIG. 9, the control device 2b is different from FIG. 1 described above in that it includes a sensor data storage section 27 that stores sensor data detected by the sensor 1. The rest of the configuration is the same as that of the control device 2 shown in FIG. 1, so the same reference numerals are given and the description of the configuration will be omitted.

The sensor data stored in the sensor data storage section 27 is output to the traffic accident search section 24 and the image creation section 25.

Further, the sensor data storage unit 27 and the database 23 described above each have a storage period set for storing data. The period during which the sensor data storage unit 27 stores sensor data is set longer than the period during which the database 23 stores mobile object data and traffic accident data.

[Operation description of second embodiment]
Next, the processing procedure of the traffic accident recording system according to the second embodiment will be explained. FIG. 10 is a flowchart showing the processing procedure of the traffic accident recording system 102 according to the second embodiment.
First, in step S51, the sensor 1 detects moving objects existing around the travel path. Sensor data detected by the sensor 1 is output to the mobile object analysis section 21 and the sensor data storage section 27. Note that if the sensor 1 is equipped with a microphone, audio data detected by the microphone is added to the sensor data and output to the mobile object analysis section 21 and the sensor data storage section 27.

In step S52, the sensor data storage unit 27 stores the sensor data detected by the sensor 1.

In step S53, the moving object analysis unit 21 identifies the type of each moving object, that is, whether it is a vehicle, a two-wheeled vehicle, or a pedestrian, based on the sensor data about each moving object detected by the sensor 1. Furthermore, the position and speed of each moving object are detected based on the sensor data. Furthermore, if the detected moving object is present at an intersection (such as a T-junction or crossroads), the intersection ID of this intersection is specified in step S54. Data such as the type, position, speed, and intersection ID of the moving object (moving object data) are output to the traffic accident determination section 22 .

In step S55, the traffic accident determining section 22 determines whether a traffic accident has occurred in the moving object using the method described above based on the position and speed of the moving object detected by the moving object analyzing section 21. If the occurrence of a traffic accident is not detected (S56; NO), this process ends.

On the other hand, if the occurrence of a traffic accident is detected (S56; YES), in step S57, the traffic accident determination unit 22 determines the date and time when the traffic accident occurred, the position and speed of the moving object, the intersection ID, the voice The traffic accident data including , is output and stored in the database 23.

In this way, whenever the occurrence of a traffic accident is detected, traffic accident data regarding this traffic accident case is stored and accumulated in the database 23. That is, the database 23 stores traffic accident data for each traffic accident case.

Thereafter, in step S58, the traffic accident search unit 24 determines whether a traffic accident search request has been issued from the user interface 3.

If a search request has occurred (S58; YES), the traffic accident search unit 24 creates a traffic accident list and outputs it to the user interface 3 in step S59. Specifically, when an intersection ID where a traffic accident occurred is input as a search request, the traffic accident search unit 24 accesses the database 23 for traffic accident cases that occurred in the past at the intersection corresponding to this intersection ID. Search and create a traffic accident list containing traffic accident data for the relevant traffic accident case. Furthermore, the created traffic accident list is output to the user interface 3. Additionally, if the date and time of an accident (date, time) is entered as a search request, a traffic accident list (see Figure 7) is created by searching for traffic accident cases corresponding to this date and time. Output to interface 3.

In step S60, the traffic accident search unit 24 determines whether a detailed search request, which is a search request for a more detailed traffic accident, has been generated from the user interface 3. For example, in the traffic accident list created in step S59, if there is a risk of data tampering, the user inputs a detailed search request. Alternatively, if mobile data for a period longer than the storage period in which the data is stored in the database 23 is required, the user inputs a detailed search request.

In step S61, the traffic accident search unit 24 calculates traffic accident data based on the sensor data stored in the sensor data storage unit 27, creates a traffic accident list, and outputs it to the user interface 3. Therefore, a traffic accident list based on the sensor data detected by the sensor 1 (original data that is free from falsification) can be presented to the user. Alternatively, a traffic accident list that includes moving object data for a longer period than the storage period in the database 23 can be presented to the user.

In step S62, the image creation unit 25 determines whether an image output request has been issued from the user interface 3. If an image output request has not occurred (S62; NO), this process ends.

On the other hand, if an image output request has occurred (S62; YES), the image creation unit 25 creates and outputs an image (for example, a video) of the traffic accident case to be searched for in step S63. Specifically, when an image output request is input, the image creation unit 25 generates an image based on the position and speed of the moving body from the traffic accident data regarding the traffic accident case retrieved in the process of step S59. , create an image when a traffic accident occurs. For example, the images (videos) shown in FIGS. 2 and 3 described above are created. Furthermore, the created moving image is output to the user interface 3. After that, this process ends.

In step S64, the image creation unit 25 determines whether a detailed display request, which is a request to display a more detailed moving image, has been issued from the user interface 3. For example, if the video created in step S63 is displayed for a short period of time, or if there is a concern that the data may be tampered with, the user inputs a request to display details of the video.

If a video detailed display request has been made, in step S65, the image creation unit 25 displays the data for a predetermined period before and after the traffic accident occurrence time (S63) based on the sensor data stored in the sensor data storage unit 27. (longer period than the video created in ) and outputs the created image to the user interface 3. Therefore, images over a longer period of time based on sensor data detected by the sensor 1 (original data that is free from falsification) can be presented to the user. After that, this process ends.

Next, the processing procedure of the user interface 3 will be explained with reference to the flowchart shown in FIG. First, in step S71, the user interface 3 receives a search input for traffic accidents from the user.

Next, in step S72, the user interface 3 determines whether a search request for a traffic accident has been input. If no search request has been input (S72; NO), this process ends.

On the other hand, if a search request has been input (S72; YES), the user interface 3 outputs the search request to the traffic accident search unit 24 in step S73, and the traffic accident search unit 24 selects the traffic accident information. Get list.

In step S74, the user interface 3 presents the traffic accident list to the output unit 32. For example, if the output unit 32 is a display, a traffic accident list is displayed on the display. Therefore, by looking at the display, the user can recognize the traffic accident data related to the traffic accident case to be searched. Further, when the output unit 32 is a printer, it outputs a printed matter on which the traffic accident list is printed. Therefore, the user can recognize the traffic accident data related to the traffic accident case to be searched by looking at the printed matter.

In step S75, the user interface 3 determines whether a detailed search request has been input. If it has not been input (S75; NO), the process moves to step S78. If it has been input (S75; YES), a detailed search request is output to the traffic accident search unit 24.

In step S76, the user interface 3 obtains the detailed traffic accident list output from the traffic accident search unit 24.

In step S77, the user interface 3 presents the acquired detailed traffic accident list to the user on a display or a printer.

In step S78, the user interface 3 determines whether a request to display an image of a traffic accident has been input. In step S79, it is determined whether or not an image display request has been input, and if it has not been input (S79; NO), the process ends.

On the other hand, if an image display request has been input (S79; YES), in step S80, the user interface 3 outputs an image display request to the image creation section 25, and the image creation section 25 Obtain an image (for example, a video) at the time of a traffic accident.

In step S81, the user interface 3 displays an image at the time of the traffic accident on the output unit 32. For example, when the output unit 32 is a display, an image at the time of a traffic accident is displayed on the display. Therefore, by looking at the display, the user can visually recognize images related to traffic accident cases that are search targets.

In step S82, the user interface 3 determines whether a request for displaying image details has been input. If a request for displaying detailed images has not been input (S82; NO), this process ends. If an image detail display request has been input (S82; YES), the process moves to step S83.

In step S83, the user interface 3 acquires the detailed image output from the image creation section 25.

In step S84, the user interface 3 displays the acquired detailed image on the display. After that, this process ends.

[Description of effects of second embodiment]
In this way, the traffic accident recording system 102 according to the second embodiment includes the sensor data storage section 27 that stores sensor data detected by the sensor 1. At this time, the period for storing sensor data in the sensor data storage section 27 is set longer than the period for storing moving body data and traffic accident data in the database 23. When the user inputs a search request for detailed traffic accident data (detailed search request), traffic accident data is calculated based on the sensor data stored in the sensor data storage unit 27, and the traffic accident data is calculated based on the sensor data stored in the sensor data storage unit 27. Create an accident list. Therefore, the user can obtain a traffic accident list that is free from data falsification, which is extremely useful, for example, when making insurance calculations by referring to the traffic accident list.

In addition, since the image at the time of the traffic accident is created based on the sensor data stored in the sensor data storage unit 27, the image can be created not only during the time period when the traffic accident occurred, but also over a longer period of time before and after the accident. For example, it becomes possible to more reliably investigate the causes of traffic accidents.

[Description of third embodiment]
Next, a third embodiment will be described. FIG. 12 is a block diagram showing the configuration of a traffic accident recording system according to the third embodiment.
As shown in FIG. 12, a traffic accident recording system 103 according to the third embodiment differs from that in FIG. 1 described above in that an administrator server 4 is provided. The rest of the configuration is the same as that in FIG. 1, so the same reference numerals are given and the explanation of the configuration will be omitted. The detailed configuration of the administrator server 4 will be described below.

The administrator server 4 includes a usage record aggregation section 41, a billing section 42, and an administrator interface 43. The administrator server 4 is connected to the user interface 3 by wire or wirelessly.

The usage record aggregation unit 41 aggregates and stores the number of times the user performed a search on the user interface 3, the number of times an image was displayed, and the search time required for the search (hereinafter referred to as "usage record data"). . For example, if user P1 enters a search request for a target traffic accident on the user interface 3 in order to search for traffic accident cases and obtains a traffic accident list, the number of times the search request was executed in this process is , the number of times the image was displayed, and the time required for the search are stored as usage record data of the user P1.

The billing unit 42 calculates the amount to be charged to each user based on usage record data for each user. For example, the amount of money is set depending on the number of times the search is performed, the time required for the search request, the number of times the traffic accident list is provided, and so on. At this time, a user ID, which is information for identifying each user, may be set for each user, and the amount to be charged may be determined for each user ID according to the number of times the traffic accident list is provided. It is possible.

The administrator interface 43 has a function operated by an administrator who manages the traffic accident recording system 103, and performs processing such as creating a bill according to the amount set by the billing section 42.

[Operation description of third embodiment]
Next, the processing procedure of the traffic accident recording system 103 according to the third embodiment will be explained. The processing by the sensor 1 and the control device 2 is the same as the flowchart shown in FIG. 5 described above, so the explanation will be omitted.

The processing procedure in the user interface 3 will be described below with reference to the flowchart shown in FIG. The processing in steps S91 to S98 shown in FIG. 13 is similar to the processing in steps S31 to S38 shown in FIG. 6 described above. Therefore, the processing after step S99 shown in FIG. 13 will be explained.

In step S99 of FIG. 13, the user interface 3 calculates usage record data including the time or number of times the user performed a traffic accident search and displaying an image of a traffic accident, and uses the calculated usage record data as a user interface. The information is stored in a storage unit (not shown) provided in the interface 3.

In step S100, the user interface 3 outputs the stored usage record data to the administrator server shown in FIG. 12 at regular intervals (regularly).

Next, the processing procedure in the administrator server 4 will be explained with reference to the flowchart shown in FIG.
First, in step S111, the usage record aggregation unit 41 aggregates the usage record data output from the user interface 3 for each user. That is, the usage history aggregation unit 41 stores usage history data for each user.

In step S112, the charging unit 42 calculates the billing amount to be charged to each user based on the usage history data of each user.

In step S113, the administrator interface 43 outputs the billed amount for each user. By transmitting the output billed amount to each user, it is possible to collect compensation for performing the traffic accident search.

[Description of effects of third embodiment]
In this way, in the traffic accident recording system 103 according to the third embodiment, when each user inputs a search request for traffic accidents and acquires a traffic accident list or acquires an image, these operations are performed. Calculate the billing amount by charging the consideration according to the amount. Then, the calculated billing amount is billed to the user. Therefore, the administrator of the traffic accident recording system 103 can obtain compensation according to the frequency (number of times and time) each user uses the system.

In addition, by paying the necessary price, users can obtain a list of traffic accidents or images (still images, videos) of their desired traffic accident case, and can learn about the situation at the time of the traffic accident. Become.

Although the embodiments have been described above, the statements and drawings that form part of this disclosure should not be understood as limiting the present invention. Various alternative embodiments, implementations, and operational techniques will be apparent to those skilled in the art from this disclosure.

1 Sensors 2, 2a, 2b Control device 3 User interface 4 Administrator server 21 Mobile object analysis section 22 Traffic accident determination section 23 Database 24 Traffic accident search section 25 Image creation section 26 Communication section 27 Sensor data storage section 31 Input section 32 Output unit 41 Usage record aggregation unit 42 Billing unit 43 Administrator interface 101, 101a, 102, 103 Traffic accident recording system P1 User V1, V2 Vehicle

Claims (8)

A traffic accident recording system that records the situation at the time of the traffic accident when the traffic accident occurs,
A sensor installed around a running road to detect moving objects including pedestrians, motorcycles, and vehicles present on the running road;
a moving object analysis unit that detects moving object data that is data including the position and speed of the moving object based on sensor data detected by the sensor;
a traffic accident determination unit that determines whether a traffic accident has occurred in the mobile body based on at least one of the position and speed of the mobile body;
a database that stores the mobile object data during a traffic accident occurrence time period that is a predetermined time period including the time when the traffic accident occurred when the traffic accident determination unit determines that a traffic accident has occurred;
When the user specifies at least one of the time of occurrence and location of the traffic accident, a list of moving object data corresponding to the time of occurrence or location of the traffic accident stored in the database is displayed. A traffic accident search department that creates an accident list;
A traffic accident recording system characterized by being equipped with. When at least one of the time of occurrence and location of the traffic accident is specified by the user, the moving body data corresponding to the time of occurrence or location of the traffic accident stored in the database is read out, and the read movement is performed. The traffic accident recording system according to claim 1, further comprising an image creation unit that creates an image related to a traffic accident based on body data. The sensor acquires audio emitted from the mobile object,
The traffic accident recording system according to claim 2, wherein the image creation unit adds the audio to the image related to the traffic accident. further comprising a sensor data storage unit that continuously stores sensor data detected by the sensor,
The sensor data storage section and the database each have a storage period for storing data, and the period during which the sensor data storage section stores sensor data is the same as when the database stores the mobile object data. is set longer than the period to
The image creation unit creates an image based on sensor data stored in the sensor data storage unit when the user requests provision of a detailed image of the moving object. The traffic accident recording system according to claim 2. The traffic accident according to claim 2, wherein the image related to the traffic accident is a moving image, and the image creation unit displays the speed of the moving object superimposed on the moving image using an icon or a numerical value indicating the speed. Accident recording system. When a traffic accident occurs, a method for providing traffic accident information includes recording the situation at the time of the traffic accident and providing the recorded traffic accident information to a user, the method comprising:
The moving object analysis unit acquires moving object data including the position and speed of moving objects including pedestrians, motorcycles, and vehicles existing on the driving path, which are detected by sensors installed around the driving path. the step of
a step in which a traffic accident determination unit determines whether a traffic accident has occurred in the mobile body based on the mobile body data;
When it is determined that a traffic accident has occurred, the traffic accident determination unit stores in a database the mobile object data in a traffic accident occurrence time period that is a predetermined time period including the time when the traffic accident occurred. and,
When the user specifies at least one of the time of occurrence and location of the traffic accident, the traffic accident search unit reads the mobile object data in the time period of the traffic accident from the database, and searches the data at the specified time of occurrence. or creating a traffic accident list that is a list including traffic accidents that have occurred at the location;
an output unit presenting the created traffic accident list to the user;
a charging unit charging the user a fee for providing the traffic accident list;
A method for providing traffic accident information, comprising: The billing unit sets a user ID, which is information for identifying each user, for the user,
7. The method of providing traffic accident information according to claim 6, wherein the step of charging the consideration determines the amount to be charged according to the number of times the traffic accident list is provided for each user ID. When the user specifies at least one of the time of occurrence and the location of the traffic accident, the image creation unit reads the moving object data in the time period of the traffic accident from the database, and based on the read moving object data. further comprising the step of creating an image related to a traffic accident,
8. The method for providing traffic accident information according to claim 6, wherein the step of charging the fee includes charging a fee for the image provided to the user in addition to the traffic accident list.

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