JP2017182490A - Information processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support an objective analysis of the cause of a traffic accident.SOLUTION: A server device includes: a server side communication part for communicating with a plurality of terminal devices corresponding to a vehicle; a vehicle position storage part for storing vehicle position information; an operation history storage part for storing operation history information of the vehicle; a position and time specification part for specifying an occurrence position of a traffic accident and an occurrence time of the traffic accident; a vehicle specification part for specifying the vehicle of an analysis object on the basis of the occurrence position of the traffic accident and the occurrence time of the traffic accident specified by the position and time specification part, and the vehicle position information stored by the vehicle position storage part; and analysis part for extracting operation history information relating to the vehicle specified by the vehicle specification part in the operation history information stored by the operation history storage part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information processing system.

  Conventionally, it has been proposed to accumulate and analyze information on the driving situation of a vehicle. For example, in Patent Document 1, an image of a driving state is recorded by a digital video camera attached to a car, and when a car accident occurs, image data recorded by the digital video camera of the driving state until the accident occurs is stored in a computer. A digital video camera negligence rate evaluation system is described which inputs, analyzes and outputs still image data, and evaluates a driver's negligence rate by collating with past negligence rate case data. Patent Document 2 also discloses a receiving means for receiving electronic information representing the operation status of a moving body by a driver belonging to each customer, collected by each of a plurality of customers, and electronic information received from each customer. Evaluation means for performing relative evaluation processing of operation status between the same driver or different drivers by performing content analysis, and information on the result of relative evaluation processing by this evaluation means for the customer to whom the driver who is the target of evaluation belongs An operation analysis system comprising information presentation means for presenting to a destination is described.

JP 2001-347970 A JP 2002-150468 A

By the way, it is conceivable to use such information relating to the driving situation of the vehicle to identify a vehicle accident. However, simply accumulating information on the driving situation of the vehicle may not be useful for identifying the cause of the accident. For example, in the technique described in Patent Document 1, an image captured by a digital video camera attached to an automobile in which an accident has occurred is analyzed. Therefore, the cause of the accident can only be determined from the subjective viewpoint of the car that caused the accident. For example, even if another vehicle (B) has an accident in order to avoid the vehicle (A) whose signal is ignored in the crossroads, if the vehicle (A) is not captured by the camera of the vehicle (B), the vehicle (A ) Cannot ignore the signal. Moreover, in the technique described in Patent Document 2, only a relative evaluation process of operation status between the same driver or different drivers is performed. However, Patent Document 2 does not disclose at all about specifying a plurality of drivers related to one accident. Therefore, it is impossible to use the technique described in Patent Document 2 for identifying the cause of an accident.
Therefore, it is required to support an objective analysis of the cause of a traffic accident.

  An object of some aspects of the present invention is to provide an information processing system that can support an objective analysis of the cause of a traffic accident.

  Another object of another aspect of the present invention is to provide an information processing system that can achieve the effects described in the embodiments described later.

  In order to solve the above-described problem, one aspect of the present invention is an information processing system including a plurality of terminal devices corresponding to a vehicle and a server device, wherein the terminal device is a vehicle that corresponds to the own device. A terminal-side communication unit that transmits identification information, vehicle position information in which the position of the vehicle is associated with time, and operation history information indicating an operation history of the vehicle corresponding to the own device to the server device, The server device includes a server-side communication unit that communicates with a plurality of the terminal devices, a vehicle position storage unit that stores the vehicle position information received by the server-side communication unit, and the operation that is received by the server-side communication unit. An operation history storage unit that stores history information, a position time specifying unit that specifies the position of the analysis target and the time of the analysis target, the position of the analysis target specified by the position time specifying unit, and the time of the analysis target When, Based on the vehicle position information stored in the vehicle position storage unit, the vehicle specifying unit that specifies the vehicle to be analyzed, and the operation history information stored in the operation history storage unit, the vehicle specifying unit And an analysis unit that extracts operation history information related to the specified vehicle.

  According to an embodiment of the present invention, an objective analysis of the cause of a traffic accident can be supported.

It is a mimetic diagram for explaining an outline of an accident analysis support system concerning a 1st embodiment of the present invention. It is a block diagram which shows the structure of the accident analysis assistance system which concerns on the same embodiment. It is a block diagram which shows the structure of the vehicle terminal device which concerns on the same embodiment. It is a figure showing an example of data composition of vehicle position information concerning the embodiment. It is a figure showing an example of data composition of operation history information concerning the embodiment. It is a block diagram which shows the structure of the server apparatus which concerns on the same embodiment. It is a block diagram which shows the structure of the computer system which concerns on the same embodiment. It is a sequence chart which shows an example of the flow of a process by the accident analysis assistance system which concerns on the same embodiment. It is a block diagram which shows the structure of the server apparatus which concerns on the 2nd Embodiment of this invention. It is a sequence chart which shows an example of the flow of a process by the accident analysis assistance system which concerns on the same embodiment. It is a block diagram which shows the structure of the server apparatus which concerns on the 3rd Embodiment of this invention. It is a figure which shows the data structural example of the scenario information which concerns on the same embodiment. It is a sequence chart which shows an example of the flow of a process by the accident analysis assistance system which concerns on the same embodiment. It is a block diagram which shows the structure of the server apparatus which concerns on the 4th Embodiment of this invention. It is a sequence chart which shows an example of the flow of a process by the accident analysis assistance system which concerns on the same embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[First embodiment]
(Outline of the first embodiment)
A first embodiment of the present invention will be described.
FIG. 1 is a schematic diagram for explaining an overview of an accident analysis support system 1 according to the present embodiment.
The accident analysis support system 1 collects vehicle position information and operation history information from a plurality of traveling or stopped vehicles 30 and analyzes the cause of a traffic accident caused by the vehicle 30 based on these information. It is an information processing system that supports
The vehicle position information is information indicating the position of the vehicle at each time.
The operation history information is information indicating the operation history of the vehicle. That is, the vehicle position information and the operation history information are information indicating the driving situation of the vehicle, respectively.

The server device 10 included in the accident analysis support system 1 identifies the vehicle 30 that existed in the vicinity of the accident occurrence position when the accident occurred based on the vehicle position information collected from each vehicle 30. That is, the vehicle 30 specified here is a vehicle 30 that may be related to an accident. Hereinafter, the vehicle specified as described above is referred to as an accident-related vehicle. The server device 10 extracts operation history information of a vehicle that has caused an accident (hereinafter referred to as an accident vehicle) and operation history information of an accident-related vehicle from the operation history information collected from each vehicle 30.
As a result, the accident analysis support system 1 can identify not only the accident vehicle but also a vehicle that may be related to the accident, and can confirm the change with time of the driving.

Moreover, in this embodiment, the server apparatus 10 compares the time-dependent change of the driving | operation of an accident vehicle with the time-dependent change of the driving | operation of an accident related vehicle. Then, the server device 10 presents the comparison result.
Thereby, the accident analysis support system 1 can perform support for determining whether the operation of the accident vehicle is objectively abnormal as compared with the operation of other vehicles.
The above is the description of the outline of the accident analysis support system 1.

(Configuration of accident analysis support system 1)
Next, the configuration of the accident analysis support system 1 will be described.
FIG. 2 is a block diagram showing the configuration of the accident analysis support system.
The accident analysis support system 1 includes vehicle terminal devices 50-1, 50-2, and 50-N, a server device 10, and an analyst terminal device 20. The vehicle terminal devices 50-1, 50-2, 50-N and the server device 10 are connected to the network NW and can communicate with each other. The server device 10 and the analyst terminal device 20 are connected so as to be communicable.

  Vehicle terminal devices 50-1, 50-2, and 50-N are installed in vehicles 30-1, 30-2, and 30-N, respectively. Hereinafter, the vehicle terminal devices 50-1, 50-2, and 50-N are collectively referred to as the vehicle terminal device 50 unless particularly distinguished. Similarly, the vehicles 30-1, 30-2, and 30 -N are collectively referred to as the vehicle 30 unless otherwise distinguished.

The vehicle terminal device 50 is an electronic device including a computer system such as an in-vehicle terminal device, a tablet, a smartphone, a PHS terminal device (Personal Handyphone System), and a mobile phone.
For example, the vehicle terminal device 50 detects the position of the own device, that is, the position of the vehicle on which the own device is provided. The vehicle terminal device 50 generates vehicle position information based on the detected position, and transmits the vehicle position information to the server device 10.
Further, the vehicle terminal device 50 generates operation history information based on various information processed by an ECU (Engine Control Unit) of the vehicle 30. The vehicle terminal device 50 transmits the generated operation history information to the server device 10.
In addition, when the vehicle 30 has an accident, the vehicle terminal device 50 transmits an accident occurrence notification indicating the occurrence of the accident to the server device 10.

  The server device 10 is a device that supports analysis of the cause of an accident based on vehicle position information and operation history information, and is an electronic device that includes a computer system. The server device 10 acquires vehicle position information from the vehicle terminal device 50. The server device 10 stores the acquired vehicle position information in the storage unit of the own device. In addition, the server device 10 acquires operation history information from the vehicle terminal device 50. The server device 10 stores the acquired operation history information in the storage unit of the own device. Moreover, when the server apparatus 10 receives the accident occurrence notification from the vehicle terminal apparatus 50, the server apparatus 10 refers to the vehicle position information and the operation position information, and supports the analysis of the cause of the traffic accident. Further, the server device 10 may support the analysis of the cause of the accident in response to a request from the analyst terminal device 20. The server device 10 stores the analysis result in, for example, a storage unit of its own device or transmits it to the analyst terminal device 20.

The analyzer terminal device 20 is an electronic device including a computer system such as a personal computer, a tablet, a smartphone, a PHS terminal device, and a mobile phone. The analyzer terminal device 20 receives an instruction from the analyst and performs processing according to the instruction. Specifically, the analyst terminal device 20 receives input of accident designation information related to an accident to be analyzed from the analyst. This accident designation information corresponds to the above-mentioned accident occurrence notification. The analyst terminal device 20 transmits the accident designation information to the server device 10 and receives an analysis result corresponding to the transmitted accident designation information from the server device 10. The analyzer terminal device 20 displays the received analysis result on the screen and presents it to the analyst.
The above is the description of the configuration of the accident analysis support system 1.

(Configuration of the vehicle terminal device 50)
Next, the configuration of the vehicle terminal device 50 will be described.
FIG. 3 is a block diagram illustrating a configuration of the vehicle terminal device 50.
The vehicle terminal device 50 includes a terminal-side first communication unit 51, a terminal-side second communication unit 52, a terminal-side storage unit 53, a timer unit 54, a position detection unit 55, and a terminal-side control unit 56. Prepare.

The terminal-side first communication unit 51 communicates with the ECU of the vehicle 30.
The terminal-side second communication unit 52 communicates with the server device 10 via the network NW.
The terminal-side storage unit 53 stores information necessary for various processes executed by the terminal-side control unit 56, processing results by the terminal-side control unit 56, and the like. For example, the terminal-side storage unit 53 stores a user ID (IDentifier) in advance. The user ID is information that identifies the vehicle 30. The user ID may be identification information of the vehicle terminal device 50, may be identification information of the vehicle 30, or may be identification information of a driver of the vehicle terminal device 50.
The timer 54 measures the time.
The position detection unit 55 detects the position of the own device. That is, the position detection unit 55 detects the vehicle position. The position detection unit 55 performs positioning using, for example, a GPS (Global Positioning System) sensor, an acceleration sensor, or the like.

  The terminal side control unit 56 controls various configurations included in the vehicle terminal device 50. The terminal-side control unit 56 is realized, for example, by executing a program stored in advance in the terminal-side storage unit 53 by a CPU (Central Processing Unit) included in the vehicle terminal device 50. A part or all of the terminal-side control unit 56 may be realized as a hardware integrated circuit such as an LSI (Large Scale Integration) or an ASIC (Application Specific Integrated Circuit).

The terminal-side control unit 56 includes a vehicle position information generation unit 561, an operation information acquisition unit 562, an operation history information generation unit 563, and an accident detection unit 564.
The vehicle position information generating unit 561 generates vehicle position information by associating the time measured by the time measuring unit 54 with the positioning result obtained by the position detecting unit 55. Generation of vehicle position information is performed periodically. The vehicle position information generation unit 561 transmits the vehicle position information to the server device 10 via the terminal-side second communication unit 52. The vehicle position information generation unit 561 may transmit the vehicle position information to the server device 10 every time it generates the vehicle position information, or may collectively transmit the vehicle position information for a plurality of times to the server device 10.

Here, a specific example of the vehicle position information will be described.
FIG. 4 is a diagram illustrating a data configuration example of the vehicle position information.
In the example illustrated in FIG. 4, the vehicle position information is configured by associating various types of information such as a user ID, latitude, longitude, and time with each other. Therefore, by referring to the vehicle position information, it is possible to specify when and at which position the vehicle of which user ID was present.
The above is the description of the specific example of the vehicle position information.

Returning to FIG. 3, the description of the terminal-side control unit 56 is continued.
The operation information acquisition unit 562 acquires operation information indicating a driver's operation on the vehicle 30 from the ECU of the vehicle 30 via the terminal-side first communication unit 51. The operation information acquisition unit 562 outputs the acquired operation information to the operation history information generation unit 563 and the accident detection unit 564.
The operation history information generation unit 563 acquires operation information from the operation information acquisition unit 562. The operation information acquisition unit 562 generates operation history information in which the operation information and the user ID are associated with each other based on the operation information. The operation history information is generated periodically. The operation history information generation unit 563 transmits the operation history information to the server device 10 via the terminal-side second communication unit 52. The operation history information generation unit 563 may transmit the operation history information to the server device 10 every time it generates the operation history information, or may collectively transmit vehicle position information for a plurality of times to the server device 10.

Here, a specific example of the operation history information will be described.
FIG. 5 is a diagram illustrating a data configuration example of the operation history information.
In the example illustrated in FIG. 5, the operation history information is configured by associating various types of information such as a user ID, a steering wheel, a winker, a wiper, a speed, an airbag, and time.
The handle angle is described in the handle field.
The blinker lighting state is described in the blinker field.
The wiper field describes the operating state of the wiper.
In the speed field, the moving speed of the vehicle 30 is described.

Accordingly, referring to the operation history information, it is possible to specify a change with time of driving of the vehicle 30.
The operation history information may include arbitrary information related to the driving of the vehicle 30 other than those described here, or arbitrary information may be omitted. For example, the operation history information may include information such as the pedal angle of the accelerator pedal, the pedal angle of the brake pedal, and the acceleration of the vehicle 30.
This completes the description of the specific example of the operation history information.

Returning to FIG. 3, the description of the terminal-side control unit 56 is continued.
The accident detection unit 564 acquires operation information from the operation information acquisition unit 562. The accident detection unit 564 detects the occurrence of an accident for the vehicle 30 on which the own apparatus is mounted based on the operation information. When the accident detection unit 564 detects the occurrence of an accident, the accident detection unit 564 transmits an accident occurrence notification to the server device 10 via the terminal-side second communication unit 52. This accident occurrence notification includes, for example, a user ID and time.
The above is the description of the configuration of the vehicle terminal device 50.

(Configuration of server device 10)
Next, the configuration of the server device 10 will be described.
FIG. 6 is a block diagram illustrating a configuration of the server apparatus 10.
The server device 10 includes a server-side first communication unit 11, a server-side second communication unit 12, a server-side storage unit 13, and a server-side control unit 14.
The server-side first communication unit 11 communicates with the vehicle terminal device 50 via the network NW.
The server-side second communication unit 12 communicates with the analyst terminal device 20.

The server-side storage unit 13 stores information necessary for various processes executed by the server-side control unit 14 and processing results obtained by the server-side control unit 14. The server side storage unit 13 includes a vehicle position storage unit 131 and an operation history storage unit 132.
The vehicle position storage unit 131 stores vehicle position information acquired from the plurality of vehicle terminal devices 50.
The operation history storage unit 132 stores operation history information acquired from the plurality of vehicle terminal devices 50.

The server side control unit 14 controls various configurations included in the server device 10. The server side control part 14 is implement | achieved when CPU with which the server apparatus 10 runs the program previously stored in the server side memory | storage part 13, for example. A part or all of the server-side control unit 14 may be realized as a hardware integrated circuit such as an LSI or an ASIC.
The server-side control unit 14 includes a vehicle position acquisition unit 141, an operation history acquisition unit 142, a position time specification unit 143, a vehicle specification unit 144, and an analysis unit 145.
The vehicle position acquisition unit 141 acquires vehicle position information transmitted from the vehicle terminal device 50. The vehicle position acquisition unit 141 causes the vehicle position storage unit 131 to store the acquired vehicle position information.
The operation history acquisition unit 142 acquires operation history information transmitted from the vehicle terminal device 50. The operation history acquisition unit 142 causes the operation history storage unit 132 to store the acquired operation history information.

  The position time specifying unit 143 performs processing for specifying the position and time for the accident to be analyzed. For example, the position time specifying unit 143 acquires the accident occurrence notification transmitted from the vehicle terminal device 50. And the position time specific | specification part 143 specifies accident occurrence time and an accident occurrence position with reference to the information of the time and position contained in an accident occurrence notification. The position time specifying unit 143 notifies the vehicle specifying unit 144 of the accident occurrence time and the accident occurrence position. In addition, the position time specifying unit 143 notifies the analysis unit 145 of the user ID included in the accident occurrence notification as the user ID of the accident vehicle.

  Note that the position time specifying unit 143 may specify the position and time of the accident to be analyzed based on the accident designation information transmitted from the analyst terminal device 20. In this case, the accident designation information includes the user ID of the accident vehicle, the accident occurrence time, and the accident occurrence position, similarly to the accident occurrence notification.

  The vehicle identification unit 144 performs processing for identifying a vehicle that may be related to an accident as an accident-related vehicle. First, the vehicle identification unit 144 sets a temporal range to be analyzed and a spatial range to be analyzed based on the accident occurrence time and the accident occurrence position. This temporal range and spatial range may be set arbitrarily. For example, a time period from 3 minutes before the accident occurrence time to the accident occurrence time is set as a temporal range, and an area within a radius of 500 meters from the accident occurrence position is set as a spatial range. The vehicle specifying unit 144 refers to the vehicle position information stored in the vehicle position storage unit 131 and extracts the vehicle position information whose time and position information are included in the set temporal range and spatial range. And the vehicle specific | specification part 144 specifies user ID contained in the extracted vehicle position information. Thereby, the vehicle identification unit 144 can identify the vehicle 30 that has been located near the accident site before the occurrence of the accident, that is, the vehicle 30 that may be related to the accident, as the accident-related vehicle. The vehicle identification unit 144 notifies the analysis unit 145 of the user ID of the accident-related vehicle.

  The analysis unit 145 performs processing for analyzing the situation at the time of occurrence of the accident. First, the analysis unit 145 acquires the user ID of the accident vehicle from the position time specifying unit 143. In addition, the analysis unit 145 acquires the user ID of the accident related vehicle from the vehicle identification unit 144. The analysis unit 145 refers to the vehicle position information stored in the vehicle position storage unit 131, and extracts the vehicle position information including the user ID of the accident vehicle and the vehicle position information including the user ID of the accident related vehicle. The analysis unit 145 also refers to the operation history information stored in the operation history storage unit 132 and extracts operation history information including the user ID of the accident vehicle and operation history information including the user ID of the accident related vehicle.

The analysis unit 145 identifies when and which route the accident vehicle or accident-related vehicle has passed by referring to the extracted vehicle position information. Thereby, the position time specific | specification part 143 can specify the relative positional relationship of an accident vehicle and an accident related vehicle. Moreover, the analysis part 145 specifies what operation was performed in the accident vehicle or the accident related vehicle at each time by referring to the extracted operation history information. That is, the analysis unit 145 identifies the driving situation between the accident vehicle before the accident occurrence and the accident-related vehicle. The analysis unit 145 compares the driving situation of the accident vehicle with the driving situation of the accident-related vehicle. The analysis unit 145 outputs the comparison result.
Note that the analysis unit 145 may identify the driving situation based on only one of the vehicle position information and the operation history information and perform the comparison.
The above is the description of the configuration of the server device 10.

(Configuration of computer system 90)
Next, the configuration of the computer system 90 included in the vehicle terminal device 50, the server device 10, and the analyst terminal device 20 described above will be described.
FIG. 7 is a block diagram showing the configuration of the computer system 90.
The computer system 90 includes a CPU 91, a storage unit 92, a communication unit 93, an input unit 94, a display unit 95, and an audio output unit 96. Each of these components is connected by, for example, a bus Bus. Further, the arbitrary configuration of the computer system 90 may be omitted if it is not necessary in each of the vehicle terminal device 50, the server device 10, and the analyst terminal device 20.

The CPU 91 executes various programs stored in the storage unit 92 and controls each unit of the computer system 90.
The storage unit 92 includes, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), an EEPROM (Electrically Erasable Programmable Read-Only Memory), and a ROM (Read-Only Memory). Various information, programs, and the like processed by the CPU 91 are stored.

The communication unit 93 includes, for example, a plurality of Ethernet (registered trademark) ports, a plurality of digital input / output ports such as USB (Universal Serial Bus), an antenna, and the like, and performs wired or wireless communication with other devices. .
The input unit 94 includes various input devices such as a pointing device such as a mouse, a keyboard, mechanical buttons, and a touch sensor. The input unit 94 may be configured integrally with the display unit 95 as a touch panel including a touch sensor that detects contact of a user's finger or stylus pen.
The display unit 95 includes, for example, a liquid crystal display panel, an organic EL (ElectroLuminescence) display panel, a projector, a light emitting diode, and the like.
The audio output unit 96 includes, for example, a speaker.
The above is the description of the configuration of the computer system 90.

(Operation of accident analysis support system 1)
Next, the operation of the accident analysis support system 1 will be described.
FIG. 8 is a sequence chart showing an example of the flow of processing by the accident analysis support system 1.
Here, the flow of processing when analyzing the situation of an accident using the detection of the occurrence of the accident as a trigger will be described.

(Step S10) The vehicle terminal device 50 determines whether or not an accident has been detected. Detection of the occurrence of an accident may be performed by any method. For example, the vehicle terminal device 50 determines that an accident has occurred when the airbag is activated. Further, for example, the vehicle terminal device 50 may determine that an accident has occurred when a sudden brake is applied or when an ABS (Antilock Bracket System) is activated. If it is determined that an accident has occurred (step S10; YES), the accident analysis support system 1 advances the process to step S12. If it is not determined that an accident has occurred (step S10; NO), the accident analysis support system 1 returns the process to step S10.

(Step S12) The vehicle terminal device 50 generates an accident occurrence notification. The vehicle terminal device 50 transmits an accident occurrence notification to the server device 10. Thereafter, the accident analysis support system 1 advances the processing to step S14.
(Step S14) The server device 10 identifies the occurrence time and occurrence position of the accident based on the accident occurrence notification. Thereafter, the accident analysis support system 1 advances the processing to step S16.

(Step S16) The server device 10 specifies an accident-related vehicle. Thereafter, the accident analysis support system 1 advances the processing to step S18.
(Step S18) The server device 10 extracts vehicle position information and operation history information for the accident vehicle and the accident-related vehicle. Thereafter, the accident analysis support system 1 advances the processing to step S20.

(Step S20) The server device 10 compares the driving situation of the accident vehicle with the driving situation of the accident-related vehicle. For example, the analysis unit 145 compares the travel route of the accident vehicle with the travel route of the accident-related vehicle, and determines whether the travel route of the accident vehicle is out of the distribution of the travel route of the accident-related vehicle. For example, the analysis unit 145 determines whether or not the moving speed of the accident vehicle is out of the distribution of the moving speeds of the accident-related vehicles. For example, the analysis unit 145 determines whether or not the transition of the steering angle of the accident vehicle deviates from the tendency of the steering angle of the accident-related vehicle. Thereafter, the accident analysis support system 1 proceeds to step S22.
Note that the server device 10 may compare arbitrary information that can be specified from the vehicle position information and the operation history information, in addition to those described here.

(Step S22) The server device 10 outputs analysis results such as a determination result by comparison, a driving situation of the accident vehicle, a driving situation of the accident-related vehicle, and the like. The output destination of the comparison result may be the server-side storage unit 13 or the analyzer terminal device 20. And the accident analysis assistance system 1 complete | finishes the process shown in FIG.
The above is the description of the operation of the accident analysis support system 1.

(Summary of the first embodiment)
As described above, the accident analysis support system 1 according to the present embodiment is an information processing system including a plurality of vehicle terminal devices 50 corresponding to the vehicle 30 and the server device 10.
In addition, the vehicle terminal device 50 includes identification information (for example, user ID) related to the vehicle 30 corresponding to the own device, vehicle position information in which the position and time of the vehicle 30 are associated, and the vehicle 30 corresponding to the own device. Terminal-side second communication unit 52 that transmits operation history information indicating the operation history of the terminal device 10 to the server device 10.
The server device 10 includes a server-side first communication unit 11 that communicates with a plurality of vehicle terminal devices 50, a vehicle position storage unit 131 that stores vehicle position information received by the server-side first communication unit 11, and a server side. The operation history storage unit 132 that stores the operation history information received by the first communication unit 11, the position time specifying unit 143 that specifies the accident occurrence position and the accident occurrence time, and the position time specifying unit 143 specify A vehicle identification unit 144 that identifies a vehicle to be analyzed (for example, an accident-related vehicle) based on an accident occurrence position, an accident occurrence time, and vehicle position information stored in the vehicle position storage unit 131; And an analysis unit 145 that extracts operation history information related to the vehicle 30 specified by the vehicle specification unit 144 from the operation history information stored in the operation history storage unit 132.

  As a result, the accident analysis support system 1 identifies the vehicle to be analyzed with respect to the time of occurrence of the accident and the location of the accident, and extracts operation history information of the vehicle to be analyzed. That is, since the accident analysis support system 1 extracts not only the accident vehicle but also the operation history information of the accident related vehicle, the accident analysis support system 1 supports objective analysis of the cause of the accident of the vehicle 30 and clarifies the responsibility for the accident. be able to.

Further, the vehicle specifying unit 144 is based on the vehicle position information stored in the vehicle position storage unit 131, and the vehicle 30 is located in the spatial range corresponding to the accident occurrence position in the time range corresponding to the accident occurrence time. Is identified as the vehicle 30 to be analyzed.
Thereby, the accident analysis support system 1 extracts, for example, operation history information of the accident-related vehicle before the accident occurrence time or in the vicinity of the accident occurrence position. Therefore, the accident analysis support system 1 can accurately specify the accident-related vehicle. Therefore, the accident analysis support system 1 can support an objective analysis of the cause of the accident of the vehicle 30.

The vehicle terminal device 50 further includes an accident detection unit 564 that detects the occurrence of an accident for the vehicle 30 corresponding to the own device, and the terminal-side second communication unit 52 detects the occurrence of the accident by the accident detection unit 564. In this case, the accident occurrence notification is transmitted, and the position time specifying unit 143 specifies the accident occurrence position and the accident occurrence time based on the accident occurrence notification received by the server-side first communication unit 11.
Thereby, since the vehicle 30 detects the occurrence of an accident, the accident analysis support system 1 can specify the occurrence time and position of the accident with high accuracy. Therefore, the accident analysis support system 1 can specify the accident-related vehicle with high accuracy.

The accident occurrence notification includes identification information (for example, user ID) related to the vehicle terminal device 50, and the analysis unit 145 identifies the vehicle 30 corresponding to the identification information included in the accident occurrence notification and the vehicle identification unit 144. The operation history information is compared with the analyzed vehicle.
Thereby, the accident analysis support system 1 compares the driving situation of the accident vehicle and the accident-related vehicle. Therefore, objective analysis of the cause of the accident of the vehicle 30 can be supported.

[Second Embodiment]
(Outline of the second embodiment)
A second embodiment of the present invention will be described. Here, about the structure similar to each embodiment mentioned above, the same code | symbol is attached | subjected and description is used.
As with the accident analysis support system 1, the accident analysis support system 1A (not shown) according to the present embodiment specifies the driving situation for the accident vehicle and the accident-related vehicle and supports the analysis of the cause of the accident. System.
However, the accident analysis support system 1 analyzed the situation of the accident by comparing the driving situation of the accident vehicle with the driving situation of the accident-related vehicle, whereas the accident analysis support system 1A is the driving situation between the accident-related vehicles. Are different.
The above is the description of the outline of the second embodiment.

(Configuration of accident analysis support system 1A)
Next, the configuration of the accident analysis support system 1A will be described.
The accident analysis support system 1A includes a server device 10A instead of the server device 10 included in the accident analysis support system 1.
FIG. 9 is a block diagram illustrating a configuration of the server device 10A.
The server device 10A includes an analysis unit 145A instead of the analysis unit 145 included in the server device 10.

Similarly to the analysis unit 145, the analysis unit 145A performs a process of analyzing the situation at the time of occurrence of the accident. However, the analysis unit 145A only needs to extract the vehicle position information of the accident-related vehicle and the operation history information, and may not extract the vehicle position information of the accident vehicle and the operation history information. The analysis unit 145A refers to the vehicle position information extracted about the accident-related vehicle and the operation history information. Here, a description will be given assuming that there are a plurality of accident-related vehicles. The analysis unit 145A identifies the driving situation of each accident-related vehicle. And analysis part 145A compares each driving situation of accident related vehicles, and specifies vehicle 30 which shows behavior different from the driving situation of other accident related vehicles as an attention vehicle. This attention vehicle is considered to have been in a unique driving situation, and is a vehicle 30 that is particularly likely to be involved in an accident among accident related vehicles. The analysis unit 145A outputs the driving situation of the vehicle of interest.
The above is the description of the configuration of the accident analysis support system 1A.

(Operation of accident analysis support system 1A)
Next, the operation of the accident analysis support system 1A will be described.
FIG. 10 is a sequence chart showing an example of the flow of processing by the accident analysis support system 1A.
Here, as in FIG. 8, the flow of processing in the case of analyzing the situation of an accident will be described using detection of the occurrence of the accident as a trigger. Moreover, since the process of step S10-S16 shown in FIG. 10 is the same as the process shown in FIG. 8, description is used.
(Step S18A) After the processing in step S16, the server device 10A extracts vehicle position information and operation history information for the accident-related vehicle. Thereafter, the accident analysis support system 1A advances the process to step S20A.

(Step S20A) Server device 10A specifies the driving situation of each accident-related vehicle. The server device 10A identifies a vehicle of interest that exhibits a behavior different from that of other accident-related vehicles with respect to the driving situation. For example, the server device 10 </ b> A has a vehicle 30 with a moving path meandering as compared with other vehicles 30, a vehicle 30 with a relatively fast relative movement speed compared with other vehicles 30, and a distance between vehicles is remarkable. The short vehicle 30 or the like is specified as the vehicle of interest. Thereafter, the accident analysis support system 1A advances the process to step S22A.
Note that the server device 10A may compare any information that can be specified from the vehicle position information and the operation history information in addition to those described here.
(Step S22A) The server device 10A outputs an analysis result that clearly indicates the vehicle of interest. And accident analysis support system 1A complete | finishes the process shown in FIG.
The above is the description of the operation of the accident analysis support system 1A.

[Summary of Second Embodiment]
As described above, the analysis unit 145A of the server device 10A according to the present embodiment, when there are a plurality of analysis target vehicles 30 (for example, accident-related vehicles), the operation history between the plurality of analysis target vehicles. Compare information.
As a result, the accident analysis support system 1A can accurately identify a vehicle of interest that is likely to be actually involved in an accident even when a large number of vehicles 30 are identified as accident-related vehicles. Therefore, the accident analysis support system 1A can support an objective analysis of the cause of the accident of the vehicle 30.

[Third embodiment]
(Outline of the third embodiment)
A third embodiment of the present invention will be described. Here, about the structure similar to each embodiment mentioned above, the same code | symbol is attached | subjected and description is used.
As with the accident analysis support system 1, the accident analysis support system 1B (not shown) according to the present embodiment specifies the driving situation for the accident vehicle and the accident-related vehicle and supports the analysis of the cause of the accident. System.
However, the accident analysis support system 1B is different from the accident analysis support system 1 in that a specific situation of the accident is analyzed.
The above is the description of the outline of the third embodiment.

(Configuration of accident analysis support system 1B)
Next, the configuration of the accident analysis support system 1B will be described.
The accident analysis support system 1B includes a server device 10B instead of the server device 10 included in the accident analysis support system 1.
FIG. 11 is a block diagram illustrating a configuration of the server device 10B.
The server device 10B includes an analysis unit 145B instead of the analysis unit 145 included in the server device 10. Further, the server side storage unit 13 of the server apparatus 10B further includes a scenario storage unit 133B in addition to the components included in the server side storage unit 13 of the server apparatus 10.

The scenario storage unit 133B stores scenario information in advance. The scenario information is information indicating a specific situation (scenario) of the accident.
Here, a specific example of scenario information will be described.
FIG. 12 is a diagram illustrating a data configuration example of scenario information.
In the example shown in FIG. 12, the scenario information is configured by associating a scenario ID, a scenario name, a scenario condition, and scenario details with each other. One scenario information expresses one scenario.

In the scenario ID field, scenario information identification information is described.
In the scenario name field, the name of the scenario is described. The name of the scenario represents the outline (type) of the scenario.
In the scenario condition field, a condition for applying the scenario is described. For example, various information values included in the operation history information, the shape of the movement route specified from the vehicle position information, and the like are described as conditions. That is, in the scenario information, the vehicle position information and the operation history information are associated with the scenario.
The scenario detail field is information indicating the specific contents of the scenario.
Therefore, the specific situation of the accident can be specified by referring to the scenario information and determining conformity / nonconformity with the scenario condition.
The above is an explanation of a specific example of scenario information.

Returning to FIG. 11, the description of the configuration of the accident analysis support system 1B will be continued.
Similarly to the analysis unit 145, the analysis unit 145B performs a process of analyzing the situation at the time of occurrence of the accident. However, the analysis unit 145B identifies the scenario with reference to the scenario information. In specifying the scenario, the analysis unit 145B determines whether the driving situation of the accident vehicle and the driving situation of the accident-related vehicle match the scenario conditions of the scenario information. The analysis unit 145B extracts the matching scenario information and associates it with the accident vehicle or the accident-related vehicle. The analysis unit 145 outputs the extraction result.
The above is the description of the configuration of the accident analysis support system 1B.

(Operation of accident analysis support system 1B)
Next, the operation of the accident analysis support system 1B will be described.
FIG. 13 is a sequence chart showing an example of the flow of processing by the accident analysis support system 1B.
Here, as in FIG. 8, the flow of processing in the case of analyzing the situation of an accident will be described using detection of the occurrence of the accident as a trigger. Moreover, since the process of step S10-S18 shown in FIG. 13 is the same as the process shown in FIG. 8, description is used.

(Step S20B) After the process of step S18, the server apparatus 10B extracts scenario information in which the driving conditions of the accident vehicle and the accident-related vehicle match the scenario conditions. The server device 10B associates the extracted scenario information with the accident vehicle or the accident-related vehicle. For example, in the case of the example shown in FIG. 12, if there is an accident-related vehicle whose moving speed exceeds the legal speed, the user ID related to the vehicle 30 is associated with the scenario ID “004” The data is stored in the server side storage unit 13. Thereafter, the accident analysis support system 1B advances the process to step S22B.

(Step S22B) The server apparatus 10B outputs the correspondence between the scenario information and the vehicle 30 as an analysis result. And accident analysis support system 1B complete | finishes the process shown in FIG.
The above is the description of the operation of the accident analysis support system 1B.

(Summary of the third embodiment)
As described above, the analysis unit 145B of the server device 10B according to the present embodiment notifies the occurrence of an accident based on the scenario information in which the accident situation and the operation history information are associated with each other and the extracted operation history information. Analyzes accidents related to
Thereby, accident analysis support system 1B can specify the situation of an accident concretely. Accordingly, the accident analysis support system 1B can support an objective analysis of the cause of the accident of the vehicle 30.

[Fourth Embodiment]
(Outline of the fourth embodiment)
A fourth embodiment of the present invention will be described. Here, about the structure similar to each embodiment mentioned above, the same code | symbol is attached | subjected and description is used.
The accident analysis support system 1C (not shown) according to the present embodiment, like the accident analysis support system 1B, specifies the driving situation for the accident vehicle and the accident-related vehicle and supports information analysis of the cause of the accident. System.
However, the accident analysis support system 1C is different from the accident analysis support system 1C in that the analysis is performed with reference to road mesh information.
The above is the description of the outline of the fourth embodiment.

(Configuration of accident analysis support system 1C)
Next, the configuration of the accident analysis support system 1C will be described.
The accident analysis support system 1C includes a server device 10C instead of the server device 10 included in the accident analysis support system 1.
FIG. 14 is a block diagram illustrating a configuration of the server device 10C.
The server device 10C includes an analysis unit 145C instead of the analysis unit 145B included in the server device 10B. Further, the server side storage unit 13 of the server device 10C further includes a road mesh storage unit 134C in addition to the components included in the server side storage unit 13 of the server device 10B.

The road mesh storage unit 134C stores road mesh information in advance. The road mesh information is map information indicating the orientation of the road, the traveling direction of the road, the passing lane, the position of the traffic light, and the like.
The analysis unit 145C refers to the road mesh information and identifies the driving situation of the accident vehicle and the accident-related vehicle on the road. The road mesh information includes legal matters such as the traveling direction of the road. Therefore, if these legal matters are included in the scenario condition of the scenario information, the analysis unit 145C can analyze the scenario for each vehicle 30 in more detail.
Note that the analysis unit 145C may not refer to the scenario information. Even in this case, the driving situation of the accident vehicle or the accident-related vehicle can be specified in detail by referring to the road mesh information.
The above is the description of the configuration of the accident analysis support system 1C.

(Operation of accident analysis support system 1C)
Next, the operation of the accident analysis support system 1C will be described.
FIG. 15 is a sequence chart showing an example of the flow of processing by the accident analysis support system 1C.
Here, as in FIG. 8, the flow of processing in the case of analyzing the situation of an accident will be described using detection of the occurrence of the accident as a trigger. Moreover, since the process of step S10-S18 and S22B shown in FIG. 15 is the same as the process shown in FIG. 13, description is used.

(Step S20C) After the processing in step S18, the server apparatus 10C refers to the road mesh information and identifies the driving situation of the accident vehicle and the accident-related vehicle. Then, the server device 10C extracts scenario information in which the driving conditions of the accident vehicle and the accident-related vehicle match the scenario conditions. The server device 10C associates the extracted scenario information with the accident vehicle or the accident-related vehicle. Thereafter, the accident analysis support system 1C advances the process to step S22B.

(Summary of the fourth embodiment)
As described above, the server device 10C according to the present embodiment refers to the road mesh information in the analysis of the accident. Therefore, it is possible to specify in detail the driving situation of the accident vehicle or the accident-related vehicle.

[Modification]
The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above-described embodiment, and includes a design and the like within a scope not departing from the gist of the present invention. For example, the configurations described in the first to fourth embodiments can be arbitrarily combined. In addition, for example, each configuration described in the above first to fourth embodiments can be omitted when it is not necessary to exhibit a specific function. In addition, for example, in the above-described embodiment, each configuration described can be arbitrarily separated and provided in a plurality of apparatuses.

  For example, in each of the above-described embodiments, the vehicle position information may be stored in a device different from the server devices 10, 10A, 10B, and 10C. Similarly, the operation history information may be stored in a device different from the server devices 10, 10A, 10B, and 10C. As described above, the function for accumulating the vehicle position information, the function for accumulating the operation history information, and the function for supporting the analysis of the cause of the accident using the vehicle position information and the operation history information are provided in different apparatuses. May be.

  For example, the server apparatuses 10 and 10A may refer to the road mesh information described in the fourth embodiment. For example, the server devices 10 and 10A determine whether or not the accident vehicle or the accident-related vehicle violates traffic rules such as a road speed limit. As described above, the server apparatuses 10 and 10A may analyze the driving situation of the accident vehicle or the accident-related vehicle with reference to the road mesh information. In addition, the server device 10A may extract the vehicle of interest by comparing a predetermined threshold such as a speed limit with the driving situation of the accident-related vehicle.

  In addition, although each embodiment mentioned above demonstrated the case where time and a position were included in the accident occurrence notification by the vehicle terminal device 50, it is not restricted to this. The accident occurrence notification may not include the time and / or the position. In this case, the server apparatuses 10, 10A, 10B, and 10C extract the latest vehicle position information for the user ID included in the accident occurrence notification. Then, the time and position indicated by the extracted vehicle position information may be specified as the occurrence time and the occurrence position of the accident.

The accident occurrence notification by the vehicle terminal device 50 may be performed in another manner. For example, when detecting an accident, the server apparatuses 10, 10 </ b> A, 10 </ b> B, and 10 </ b> C may transmit the operation history information and the vehicle position information with flag information indicating the occurrence of the accident.
Moreover, in each embodiment mentioned above, server apparatus 10, 10A, 10B, 10C may acquire information from the arbitrary apparatuses which can collect information regarding traffic, such as a roadside apparatus and a traffic signal, and may analyze an accident. Good.

  Further, a program for realizing the functions of the server devices 10, 10 </ b> A, 10 </ b> B, 10 </ b> C, the analyst terminal device 20, and the vehicle terminal device 50 is recorded on a computer-readable recording medium and recorded on the recording medium. The server device 10, 10 </ b> A, 10 </ b> B, 10 </ b> C, the analyzer terminal device 20, and the vehicle terminal device 50 may be processed by causing the computer system to read and execute the program. Here, “loading and executing a program recorded on a recording medium into a computer system” includes installing the program in the computer system. The “computer system” here includes an OS and hardware such as peripheral devices. Further, the “computer system” may include a plurality of computer devices connected via a network including a communication line such as the Internet, WAN, LAN, and dedicated line. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. As described above, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM. The recording medium also includes a recording medium provided inside or outside that is accessible from the distribution server in order to distribute the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program that can be executed by the terminal device. That is, the format stored in the distribution server is not limited as long as it can be downloaded from the distribution server and installed in a form that can be executed by the terminal device. Note that the program may be divided into a plurality of parts, downloaded at different timings, and combined in the terminal device, or the distribution server that distributes each of the divided programs may be different. Furthermore, the “computer-readable recording medium” holds a program for a certain period of time, such as a volatile memory (RAM) inside a computer system that becomes a server or a client when the program is transmitted via a network. Including things. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

  Moreover, you may implement | achieve part or all of the function of the server apparatus 10, 10A, 10B, 10C mentioned above, the analyzer terminal device 20, and the vehicle terminal device 50 as integrated circuits, such as LSI. Each function described above may be individually made into a processor, or a part or all of them may be integrated into a processor. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to the advancement of semiconductor technology, an integrated circuit based on the technology may be used.

DESCRIPTION OF SYMBOLS 1, 1A, 1B, 1C ... Accident analysis support system, 10 ... Server apparatus, 11 ... Server side 1st communication part, 12 ... Server side 2nd communication part, 13 ... Server side memory | storage part, 131 ... Vehicle position memory | storage part, 132 ... Operation history storage unit, 133B ... Scenario storage unit, 134C ... Road mesh storage unit, 14 ... Server side control unit, 141 ... Vehicle position acquisition unit, 142 ... Operation history acquisition unit, 143 ... Position time identification unit, 144 ... Vehicle specifying unit, 145, 145A, 145B, 145C ... analyzing unit, 20 ... analyzer terminal device, 30 ... vehicle, 50 ... vehicle terminal device, 51 ... terminal side first communication unit, 52 ... terminal side second communication unit, 53 ... Terminal side storage unit, 54 ... Timing unit, 55 ... Position detection unit, 56 ... Terminal side control unit, 561 ... Vehicle position information generation unit, 562 ... Operation information acquisition unit, 563 ... Operation history information generation unit, 564 ... accident Out section

Claims (6)

An information processing system comprising a plurality of terminal devices corresponding to a vehicle and a server device,
The terminal device
Identification information related to the vehicle corresponding to the own device, vehicle position information in which the position and time of the vehicle are associated, and operation history information indicating an operation history of the vehicle corresponding to the own device are transmitted to the server device. Terminal side communication part,
With
The server device
A server-side communication unit that communicates with a plurality of the terminal devices;
A vehicle position storage unit for storing the vehicle position information received by the server side communication unit;
An operation history storage unit for storing the operation history information received by the server side communication unit;
A position time specifying unit for specifying the occurrence position of the traffic accident and the occurrence time of the traffic accident;
A vehicle that identifies a vehicle to be analyzed based on the occurrence position of the traffic accident identified by the position time identification unit, the occurrence time of the traffic accident, and the vehicle position information stored in the vehicle position storage unit A specific part,
From the operation history information stored in the operation history storage unit, an analysis unit that extracts operation history information related to the vehicle specified by the vehicle specifying unit;
An information processing system comprising: The vehicle specifying unit is located in a spatial range corresponding to the occurrence location of the traffic accident in a temporal range corresponding to the occurrence time of the traffic accident based on the vehicle location information stored in the vehicle location storage unit. The information processing system according to claim 1, wherein the identified vehicle is identified as the vehicle to be analyzed. The terminal device
The vehicle corresponding to its own device further includes an accident detection unit that detects the occurrence of a traffic accident,
When the accident detection unit detects the occurrence of a traffic accident, the terminal side communication unit transmits an accident occurrence notification,
The said position time specific | specification part specifies the occurrence position of the said traffic accident and the occurrence time of the said traffic accident based on the said accident occurrence notification which the said server side communication part received. Information processing system. The accident occurrence notification includes identification information related to the vehicle,
The information processing according to claim 3, wherein the analysis unit compares the operation history information for a vehicle corresponding to the identification information included in the accident occurrence notification and the analysis target vehicle specified by the vehicle specifying unit. system. 5. The information processing system according to claim 3, wherein when there are a plurality of vehicles to be analyzed, the analysis unit compares operation history information between the plurality of vehicles to be analyzed. The said analysis part analyzes the traffic accident which concerns on the said accident occurrence notification based on the scenario information which matched the condition of traffic accident and operation history information, and the extracted operation history information. The information processing system according to any one of the above.

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