JP5585193B2 - Event data processing method, program, and apparatus - Google Patents

Description

  The present technology relates to a technology for analyzing a driving situation of a driver.

  In recent years, drive recorders equipped with cameras, acceleration sensors, and the like are becoming widespread. In the drive recorder, when a behavior such as a sudden brake is detected, images before and after the sudden brake, information on a point where the sudden brake was stepped on, time information, and the like are stored. Therefore, by attaching the drive recorder to the vehicle, it becomes possible to confirm later whether the driver of the vehicle was performing dangerous driving. Note that, for example, when the acceleration value measured by the acceleration sensor is equal to or greater than a predetermined threshold, it can be determined that the sudden braking has been performed. In addition, there has conventionally been a technique for accumulating information on a point where a sudden brake is applied and time and the like, and assisting the driver's driving using the accumulated information.

  On the other hand, for example, elderly people or people unfamiliar with driving may not be able to fully grasp the surrounding situation while driving, and may have troubled other vehicles without noticing themselves. is there. In this case, an event may occur in which the driver of another vehicle feels dangerous and steps on the brake suddenly.

  However, in the prior art, a vehicle driven by a driver who has been inconvenienced without noticing is regarded as traveling normally, and the vehicle cannot detect the occurrence of the above-described event. . That is, in the prior art, a driver who has been inconvenienced without being aware of it cannot recognize that a dangerous situation has occurred in another vehicle due to his / her driving.

JP 2009-1405060 A JP 2008-296682 A JP 2008-015561 A JP 2007-047914 A JP 2007-051973 A JP 2005-242526 A

“Utilization examples of safety recorder”, datatec, [Online] [Search on April 12, 2010], Internet (URL: http://www.datatec.co.jp/saftyrecorder/katuyou1_1.html)

  Therefore, an object of the present technology is to make it possible to grasp an event that may have occurred due to a specific vehicle among events indicating that an acceleration value equal to or greater than a predetermined threshold is measured in the vehicle. Is to provide technology.

  In this event data processing method, identification information of a vehicle in which an in-vehicle sensor value equal to or greater than a first threshold is measured, a vehicle position of the vehicle at the time when the in-vehicle sensor value is measured, and a measurement time of the in-vehicle sensor value. An event data processing method executed by a computer having an event database for storing event data. The event data processing method receives a survey request including travel route information that is information in which a position on a route traveled by the first vehicle to be surveyed and a time at the position are associated with each other. And the event data including the identification information of the second vehicle other than the first vehicle in the event database, the vehicle position of the second vehicle is grasped from the travel route information of the first vehicle, An extraction step for extracting event data that satisfies the first condition that the vehicle is in the vicinity of the travel position of the first vehicle at the measurement time for the vehicle, and a vehicle position and measurement time included in the event data that satisfies the first condition And generating a survey result data and transmitting the survey result data to a transmission source of the survey request.

  Among events indicating that an acceleration value equal to or greater than a predetermined threshold is measured in a vehicle, it is possible to grasp an event that may have occurred due to a specific vehicle.

FIG. 1 is a schematic diagram of a system according to an embodiment of the present technology. FIG. 2 is a functional block diagram of the in-vehicle device according to the embodiment of the present technology. FIG. 3 is a functional block diagram of the server according to the embodiment of the present technology. FIG. 4 is a diagram illustrating a processing flow of the in-vehicle device during traveling of the vehicle. FIG. 5 is a diagram illustrating an example of data stored in the travel route information storage unit. FIG. 6 is a diagram illustrating a processing flow of the server when the near-miss information is received. FIG. 7 is a diagram illustrating an example of data stored in the near-miss DB. FIG. 8 is a diagram showing a processing flow of the server at the time of receiving a survey request. FIG. 9 is a diagram for explaining the outline of the search process. FIG. 10 is a diagram illustrating a processing flow of search processing. FIG. 11 is a diagram illustrating an example of data stored in the processing result storage unit. FIG. 12 is a diagram schematically illustrating an example of acceleration data of the investigation target vehicle. FIG. 13 is a diagram illustrating a processing flow of acceleration change determination processing. FIG. 14 is a diagram illustrating an example of survey result data. FIG. 15 is a functional block diagram of an in-vehicle device for a vehicle equipped with a camera. FIG. 16 is a diagram illustrating an example of data stored in the near-miss DB. FIG. 17 is a diagram illustrating an example of survey result data including video data. FIG. 18 is a diagram showing a processing flow of the event data processing method according to the first aspect. FIG. 19 is a diagram showing a processing flow of the event data processing apparatus according to the second mode. FIG. 20 is a functional block diagram of a computer.

  FIG. 1 shows a system outline according to an embodiment of the present technology. For example, in the network 1 that is the Internet, a plurality of vehicles 3, a server 5 that performs main processing in the present embodiment, and a personal computer (PC) 7 that is placed at the driver's home, for example, are wireless. Or it is connected by wire. The vehicle 3 is equipped with an in-vehicle device 300 which will be described later, and measures an acceleration value and a traveling position during traveling. The vehicle 3 is wirelessly connected to the network 1 and transmits various data related to the host vehicle to the server 5 via the network 1. The driver of the vehicle 3 may temporarily transfer various data in the in-vehicle device 300 to the PC 7 using a storage medium such as a memory card and transmit the data from the PC 7 to the server 5 via the network 1. . The server 5 receives data sent from the vehicle 3 or the PC 7 via the network 1 and stores it in a storage device.

  In FIG. 2, the functional block diagram of the vehicle-mounted apparatus 300 of the vehicle 3 is shown. The in-vehicle device 300 includes an acceleration sensor 301, an acceleration data storage unit 303, a near-miss detection unit 305, a position sensor 307, a travel route information storage unit 309, a near-miss information storage unit 311, and a transmission unit 313.

  The acceleration sensor 301 measures an acceleration value during traveling and stores the measurement result in the acceleration data storage unit 303. The acceleration sensor 301 can be replaced with another device as long as the sensor can measure the behavior of the running vehicle. For example, an angular velocity sensor or a device that detects a change state of pressure applied to a brake pad (that is, pressure when a brake is depressed) is an example of an alternative device. The near-miss detection unit 305 determines whether an acceleration value equal to or greater than the first threshold is measured using data stored in the acceleration data storage unit 303. When an acceleration value equal to or greater than the first threshold is measured, the near-miss detection unit 305 determines that a near-miss event has occurred and instructs the position sensor 307 to acquire the travel position. The near-miss detection unit 305 stores near-miss information including the time when the acceleration value equal to or greater than the first threshold is measured and the travel position acquired by the position sensor 307 in the near-hat information storage unit 311. The position sensor 307 measures the travel position at regular time intervals or regular travel distances while traveling, and stores the travel position and measurement time in the travel route information storage unit 309. Further, the position sensor 307 acquires a traveling position in response to an instruction from the near-miss detection unit 305 and outputs the travel position to the near-miss detection unit 305. The transmission unit 313 transmits data stored in the acceleration data storage unit 303, the travel route information storage unit 309, and the near-miss information storage unit 311 to the server 5.

  FIG. 3 shows a functional block diagram of the server 5. The server 5 includes a receiving unit 501, a near miss DB 503, a survey related data storage unit 505, a search processing unit 507, a processing result storage unit 509, an acceleration change determination unit 511, and a transmission unit 513. The receiving unit 501 receives near-miss information from the vehicle 3 or the PC 7 and stores it in the near-hat DB 503. The receiving unit 501 receives a survey request (for example, including travel route information) from the vehicle 3 or the PC 7 and stores data included in the survey request in the survey-related data storage unit 505. The search processing unit 507 performs search processing described later using data stored in the near miss DB 503 and the survey related data storage unit 505 and stores the search result in the process result storage unit 509. The acceleration change determination unit 511 performs acceleration change determination processing, which will be described later, using data stored in the near miss DB 503, the survey related data storage unit 505, and the processing result storage unit 509, and the processing result is processed into the processing result. Store in the storage unit 509. The transmission unit 513 generates survey result data using data stored in the near-miss DB 503, the survey-related data storage unit 505, and the processing result storage unit 509, and transmits the survey result data to the survey request source.

  Next, the process of the vehicle-mounted apparatus 300 shown in FIG. 2 is demonstrated using FIG. The in-vehicle device 300 performs processing as shown in FIG. 4 while the vehicle 3 is traveling. First, the position sensor 307 measures the travel position, and stores the travel position and measurement time in the travel route information storage unit 309 (FIG. 4: step S1). For example, as illustrated in FIG. 5, the travel route information storage unit 309 stores a travel position and a measurement time.

  Further, the acceleration sensor 301 measures the acceleration value during traveling, and stores the measurement result in the acceleration data storage unit 303 (step S3). Then, the near-miss detection unit 305 determines whether a near-miss event has occurred using the data stored in the acceleration data storage unit 303 (step S5). Specifically, it is determined whether an acceleration value equal to or greater than a first threshold value has been measured. If an acceleration value equal to or greater than the first threshold value is measured, it is determined that a near-miss event has occurred. If the occurrence of a near-miss event is not detected (step S5: No route), the process returns to step S1.

  On the other hand, when the occurrence of a near-miss event is detected (step S5: Yes route), the near-miss detection unit 305 instructs the position sensor 307 to acquire the travel position. Then, the position sensor 307 acquires the current traveling position in response to an instruction from the near-miss detecting unit 305 and outputs the acquired traveling position to the near-miss detecting unit 305. The near-miss detection unit 305 generates near-miss information including the time when the acceleration value equal to or greater than the first threshold is measured and the current travel position acquired by the position sensor 307 and stores the near-miss information in the near-hat information storage unit 311. (Step S7). In the present embodiment, the time when the acceleration value equal to or greater than the first threshold is measured is set as the near-miss event occurrence time, and the current traveling position acquired by the position sensor 307 is set as the near-hat event occurrence position.

  Thereafter, the transmission unit 313 transmits the near-miss information stored in the near-miss information storage unit 311 and the vehicle ID of the vehicle 3 to the server 5 (step S9). In the second and subsequent processes, the near-miss information that has already been transmitted is not transmitted in the current process. Then, it returns to step S1. Then, for example, the above processing is repeated until the engine of the vehicle 3 is turned off.

  Note that the processing in step S1 and the processing in steps S3 to 9 may be switched in order or executed in parallel. Further, the interval for measuring the running position and the interval for measuring the acceleration value do not have to be the same, and can be measured at different intervals.

  Further, in the processing flow of FIG. 4, the near-miss information is transmitted to the server 5 immediately after the occurrence of the near-miss event is detected. However, near-miss information regarding a plurality of near-hat events is transmitted collectively. Also good. In some cases, data stored in the near-miss information storage unit 311 is transferred to the PC 7 using a recording medium such as a memory card, and transmitted from the PC 7 to the server 5 in a batch. In this case, the process of step S9 can be omitted.

  Next, processing of the server 5 shown in FIG. 3 will be described with reference to FIGS. Initially, the process of the server 5 at the time of near-miss information reception is demonstrated using FIG. First, the receiving unit 501 of the server 5 receives the vehicle ID and near-miss information (including the occurrence position and occurrence time of the near-miss event) from the vehicle 3 or the PC 7 (FIG. 6: step S11). Then, the receiving unit 501 registers a new record including the received vehicle ID and near miss information in the near hat DB 503 (step S13). Thereafter, the process ends.

  FIG. 7 shows an example of data stored in the near miss DB 503. In the example of FIG. 7, an ID column, a vehicle ID column, a position column, and a time column are included. In the example of FIG. 7, one record is stored in the near-miss DB 503 for one near-miss event. A number that can identify a near-miss event (record) is set in the ID column. In the column of vehicle ID, the vehicle ID received in step S11 (that is, the vehicle ID of the vehicle 3 in which the near-miss event has occurred) is set. The occurrence position included in the near-miss information received in step S11 is set in the position column, and the occurrence time included in the near-miss information is set in the time column.

  In some cases, near-miss information about a plurality of near-miss events may be received together in step S11. In that case, a record related to each of the plurality of near-miss events is registered in the near-hat DB 503 in step S13.

  By executing the processing as described above, near-miss event data generated in each vehicle 3 is collected in the near-hat DB 503 of the server 5.

  Next, the processing of the server 5 when receiving a survey request will be described with reference to FIGS. First, the receiving unit 501 of the server 5 receives a survey request including the vehicle ID and travel route information of the vehicle 3 to be surveyed from the vehicle 3 or the PC 7 (FIG. 8: Step S21), and is included in the received survey request. Vehicle ID and travel route information to be stored in the survey related data storage unit 505. In some cases, the survey request further includes acceleration data including an acceleration value measured by the survey target vehicle. In this case, the receiving unit 501 stores acceleration data together with the survey related data storage unit 505.

  Thereafter, the search processing unit 507 performs a search process using the data stored in the near-miss DB 503 and the survey related data storage unit 505 (step S23). In this search process, as shown in FIG. 9, near incidents detected in vehicles other than the investigation target vehicle, near incidents that occurred in the vicinity of the investigation target vehicle are searched. Hereinafter, details of the search processing will be described with reference to FIG.

  First, the search processing unit 507 extracts a record to be searched from the near-miss DB 503 (FIG. 10: Step S31). Specifically, the earliest time and the latest time among the measurement times included in the travel route information stored in the survey-related data storage unit 505 are specified. Then, a record including the time from the earliest time to the latest time is extracted from the near-miss DB 503 as a search target.

Then, the search processing unit 507 specifies one unprocessed record among the records extracted as the search target (step S33), and acquires the time and position (hereinafter, expressed as time T and position Q) from the specified record. (Step S35). Then, the search processing unit 507 calculates the position _PT of the investigation target vehicle at the time T (step S37). Specifically, it is determined whether the travel route information stored in the survey related data storage unit 505 includes a measurement time that matches the time T. If the measurement time that matches the time T is included, Acquires the travel position corresponding to the measurement time as the position _PT . On the other hand, if the travel route information does not include a measurement time that coincides with the time T, for example, a measurement time t _i immediately before the time T and a measurement time t _{i + 1} immediately after the time T are specified. Then, a travel position corresponding to the measurement time t _i and a travel position corresponding to the measurement time t _{i + 1} are acquired from the travel route information, and interpolation processing is performed using these travel positions, thereby The position PT at the time point _T is calculated. For example, if the measurement time immediately before time T is t ₁ , the measurement time immediately after time T is t ₂ , the coordinate of the position at time t ₁ is A, and the coordinate of the position at time t ₂ is B, then the equations can calculate the position P _T at the time of the time T.

The method of calculating the position P _T at the time of the time T is not limited thereto, may be calculated using other interpolation techniques.

  Thereafter, the search processing unit 507 calculates a distance D between the position Q acquired in step S35 and the position P calculated in step S37 (step S39), and determines whether the calculated distance D is less than the threshold Th. (Step S41). The threshold value Th is set according to the road width (for example, 5 m) of the road around the position P, for example. And when it is judged that the distance D is more than threshold value Th (step S41: No route), it transfers to the process of step S45.

  On the other hand, when it is determined that the distance D is less than the threshold Th (step S41: Yes route), the search processing unit 507 registers the ID of the record specified in step S33 in the processing result storage unit 509 (step S43). ).

  FIG. 11 shows an example of data stored in the processing result storage unit 509. In the example of FIG. 11, the processing result storage unit 509 includes an ID column and an acceleration change flag column. Of the records stored in the near-miss DB 503, the ID of the record regarding the near-miss event that occurred in the vicinity of the investigation target vehicle is set in the ID column. The column of acceleration change flags is set by acceleration change determination processing described later.

  Thereafter, the search processing unit 507 determines whether the processing has been completed for all the records extracted as search targets (step S45). When there is an unprocessed record among the records extracted as the search target (step S45: No route), the process returns to step S33, and the above-described process is performed on the unprocessed record. On the other hand, when the processing is completed for all the records extracted as search targets (step S45: Yes route), this processing is terminated and the processing returns to the original processing.

  By performing the processing as described above, it is possible to extract a near-miss event that has occurred in the vicinity of the survey target vehicle from among the near-miss events detected by vehicles other than the survey target vehicle. Note that the occurrence of the near-miss event in the vicinity of the survey target vehicle is highly likely to have occurred due to the survey target vehicle.

  Returning to the description of FIG. 8, after step S23, the acceleration change determination unit 511 determines whether or not the acceleration data of the vehicle to be investigated is stored in the survey-related data storage unit 505 (step S25). Note that, as described above, when the survey request received in step S21 includes the acceleration data of the vehicle to be surveyed, the acceleration data is stored in the survey-related data storage unit 505. If the acceleration data of the investigation target vehicle is not stored in the investigation related data storage unit 505 (step S25: No route), the process of step S27 is skipped and the process proceeds to step S29.

  On the other hand, when the acceleration data of the investigation target vehicle is stored in the investigation related data storage unit 505 (step S25: Yes route), the acceleration change determination unit 511 includes the near miss DB 503, the investigation related data storage unit 505, and the processing result storage unit. Acceleration change determination processing is performed using the data stored in 509 (step S27). In this acceleration change determination process, as shown in FIG. 12, it is determined whether an acceleration value equal to or greater than the second threshold value is measured in the survey target vehicle in the vicinity of the occurrence time of a near-miss event occurring in the vicinity of the survey target vehicle. FIG. 12 schematically shows acceleration data of the vehicle to be investigated, where the vertical axis represents the magnitude of acceleration and the horizontal axis represents time. In the present embodiment, the second threshold value is smaller than the first threshold value. Hereinafter, the acceleration change determination process will be described with reference to FIG.

  First, the acceleration change determination unit 511 specifies one unprocessed ID in the processing result storage unit 509 (FIG. 13: step S51). Then, the acceleration change determination unit 511 searches the near-miss DB 503 using the specified ID, specifies a record including the ID, and acquires time T from the specified record (step S53). Then, the acceleration change determination unit 511 acquires acceleration data near the time T from the acceleration data of the investigation target vehicle stored in the investigation related data storage unit 505 (step S55). For example, a time interval including time T is specified, and acceleration data in that time interval is acquired. It is assumed that the length of the time interval is predetermined.

  Then, the acceleration change determination unit 511 determines whether the acquired acceleration data includes an acceleration value equal to or greater than the second threshold value (step S57). That is, it is determined whether or not an acceleration value equal to or greater than the second threshold is measured by the investigation target vehicle in the vicinity of time T. When an acceleration value equal to or greater than the second threshold value is detected from the acquired acceleration data (step S57: Yes route), that is, near the time T, the acceleration value equal to or greater than the second threshold value is measured by the investigation target vehicle. In the case, the process proceeds to step S59. Then, the acceleration change determination unit 511 stores the acceleration change flag indicating “change” in the processing result storage unit 509 in association with the ID specified in step S51 (step S59). That is, “changed” is set in the column of the acceleration change flag in the processing result storage unit 509 (FIG. 11).

  On the other hand, when an acceleration value equal to or greater than the second threshold value is not detected from the acquired acceleration data (step S57: No route), that is, near the time T, the acceleration value equal to or greater than the second threshold value is measured by the investigation target vehicle. If not, the process of step S59 is skipped and the process proceeds to step S61. Here, a process of storing the acceleration change flag indicating “no change” in the processing result storage unit 509 in association with the ID specified in step S51 may be performed.

  Then, the acceleration change determination unit 511 determines whether the processing has been completed for all the IDs in the processing result storage unit 509 (step S61). If processing has not been completed for all IDs in the processing result storage unit 509 (step S61: No route), the process returns to step S51, and the above-described processing is performed for unprocessed IDs. On the other hand, when the processing is completed for all the IDs in the processing result storage unit 509 (step S61: Yes route), this processing is terminated and the processing returns to the original processing.

  By performing the above process, among near-miss events that occurred in the vicinity of the investigation target vehicle, an event in which a certain degree of acceleration value was also measured in the investigation target vehicle near the occurrence time Can do.

  Returning to the description of FIG. 8, the transmission unit 513 generates survey result data using the data stored in the near-miss DB 503, the survey-related data storage unit 505, and the processing result storage unit 509, and transmits the survey request transmission source. (Step S29). Then, the source of the survey request (for example, PC 7) receives the survey result data as shown in FIG. 14 and displays it on the display device or the like. In step S29, for example, data as shown in FIG. 14 is generated as the survey result data. FIG. 14 shows an example of survey result data for displaying a travel route 1401 of the survey target vehicle and a mark 1402 representing a near-miss event occurring in the vicinity of the survey target vehicle. For example, the travel route of the survey target vehicle is set according to the travel route information stored in the survey related data storage unit 505, and the mark indicating the near-miss event that occurred near the survey target vehicle is the near-miss DB 503 and the processing result storage unit. 509 is set according to the data stored in 509.

  By carrying out the processing as described above, the survey result data as shown in FIG. 14 is presented to the requester. Therefore, the requester may have a near-miss that may have occurred due to the vehicle that he / she is driving. The event can be grasped, and it is possible to know that there is a possibility that the other vehicle is troubled without being aware of it.

  In step S29, a near-miss event to be displayed may be determined according to the acceleration change flag stored in the processing result storage unit 509, and survey result data may be generated. For example, an ID for which “changed” is set in the column of the acceleration change flag is extracted from the processing result storage unit 509, and survey result data for displaying only a near-miss event corresponding to the extracted ID is generated. May be. Conversely, an ID whose column of the acceleration change flag is blank (or “no change”) is extracted from the processing result storage unit 509, and survey result data for displaying only a near-miss event corresponding to the extracted ID is displayed. You may make it produce | generate. Furthermore, survey result data for displaying a near-miss event in which the acceleration change flag is “changed” and a near-hat event in which the acceleration change flag is blank (or “no change”) in a distinguishable manner. May be generated. For example, the requester can determine whether or not there is a problem with his / her driving in consideration of a change in acceleration in the vehicle he / she drives. For example, if a change in acceleration is observed in a vehicle that it is driving at approximately the same time as the occurrence of a near-miss event, it can be determined that the near-hat event is highly related to the vehicle being investigated. .

[Other embodiments]
Some vehicles 3 are equipped with a camera that captures a moving image. For example, when the occurrence of a near-miss event is detected in a vehicle 3 equipped with a camera, video data before and after the occurrence of the near-hat event is recorded, and the video data is transmitted to the server 5 together with the near-hat information. Good.

  The server 5 stores the video data in the near hat DB 503 when the video data is sent together with the near hat information. When the survey result data is generated, if there is video data corresponding to the near-miss event to be displayed, the survey result data including the video data is generated.

  For example, FIG. 15 shows a functional block diagram of the in-vehicle device 300b of the vehicle 3 on which the camera is mounted. The in-vehicle device 300b includes an acceleration sensor 301, an acceleration data storage unit 303, a near miss detection unit 305, a position sensor 307, a travel route information storage unit 309, a near miss information storage unit 311, a transmission unit 313, and a camera 315. And a video data storage unit 317. The acceleration sensor 301, the acceleration data storage unit 303, the near miss detection unit 305, the position sensor 307, the travel route information storage unit 309, the near miss information storage unit 311, and the transmission unit 313 have been described above. This is the same as that of the embodiment.

  Note that the camera 315 captures a moving image and stores the image data in the image data storage unit 317. Also, when the near-miss detection unit 305 detects the occurrence of a near-miss event, the near-hat detection unit 305 acquires video data of a time interval including the occurrence time of the near-miss event from the video data stored in the video data storage unit 317, The information is stored in the near-miss information storage unit 311 in association with the information. Then, the transmission unit 313 transmits the video data to the server 5 together with the near-miss information.

  The functional blocks of the server 5 are the same as those shown in FIG. However, here, for example, data as shown in FIG. 16 is stored in the near miss DB 503. In the example of FIG. 16, an ID column, a vehicle ID column, a position column, a time column, and a video data column are included. Compared to that shown in FIG. 7, in FIG. 16, a column of video data is added. When the video data is sent together with the near-miss information, the receiving unit 501 stores the received video data in the video data column of the near-miss DB 503. Note that identification information (for example, a file name) of video data may be stored in a video data column, and the video data itself may be stored in a separately prepared storage area.

  The processing of the server 5 is basically the same as that of the embodiment described above, but in step S29 (FIG. 8), for example, survey result data as shown in FIG. 17 is generated. In the example of FIG. 17, the survey result data includes a travel route 1701 of the survey target vehicle, a mark 1702 indicating a near-miss event occurring in the vicinity of the survey target vehicle, and an image taken by the vehicle 3 that detected the near-miss event. A display field 1703 for flowing is included. In the display field 1703, an image shot by the vehicle 3 that has detected a near-miss event is played back. For example, when the mark 1702 is clicked, a display column 1703 can be displayed. As a result, the requester can view the video shot by the vehicle 3 that has detected the near-miss event. For example, when the vehicle that the driver drives is reflected, the driver's driving situation can be easily grasped.

  Also, in the above configuration, the incident data detected by the vehicle 3 is collected in the server 5 and the processing shown in FIG. 8 is performed by the server 5, but as shown in FIG. It is also possible to adopt a configuration in which various processes are performed in the vehicle 3. In this case, a plurality of vehicles 3 may notify each other of near-miss event data by a wireless communication function or the like.

  Further, in the above, the occurrence of a near-miss event is detected in the vehicle 3, but the travel route information and acceleration data are transmitted from the vehicle 3 to the server 5, and the occurrence of the near-miss event is detected in the server 5. It is also possible to make such a configuration.

  Although the embodiment of the present technology has been described above, the present technology is not limited to this. For example, the functional block diagrams of the in-vehicle devices 300 and 300b and the server 5 described above do not necessarily correspond to the actual program module configuration. Similarly, the configuration of the data storage unit is merely an example.

  Also in the processing flow, if the processing result does not change, the processing order can be changed. Further, it may be executed in parallel.

  The on-vehicle devices 300 and 300b, the server 5, and the PC 7 described above are computer devices, and are connected to a memory 2501, a CPU 2503, a hard disk drive (HDD) 2505, and a display device 2509 as shown in FIG. A display control unit 2507, a drive device 2513 for a removable disk 2511, an input device 2515, and a communication control unit 2517 for connecting to a network are connected by a bus 2519. An operating system (OS) and an application program for executing the processing in this embodiment are stored in the HDD 2505, and are read from the HDD 2505 to the memory 2501 when executed by the CPU 2503. If necessary, the CPU 2503 controls the display control unit 2507, the communication control unit 2517, and the drive device 2513 to perform necessary operations. Further, data in the middle of processing is stored in the memory 2501 and stored in the HDD 2505 if necessary. In an embodiment of the present technology, an application program for performing the above-described processing is stored in a computer-readable removable disk 2511 and distributed, and installed from the drive device 2513 to the HDD 2505. In some cases, the HDD 2505 may be installed via a network such as the Internet and the communication control unit 2517. Such a computer apparatus realizes various functions as described above by organically cooperating hardware such as the CPU 2503 and the memory 2501 described above, the OS, and necessary application programs.

  The in-vehicle devices 300 and 300b may not have the HDD 2505, but in that case, an alternative storage device is used. Further, there are cases where the drive device 2513 and the flash memory type recording medium interface are combined, and there are cases where the drive device 2513 is not provided and only the flash memory type recording medium interface is provided. Further, the in-vehicle devices 300 and 300b may not include the display control unit 2507 or the display device 2509.

  The present embodiment can be summarized as follows.

  The event data processing method according to the first aspect includes vehicle identification information in which an in-vehicle sensor value equal to or greater than a first threshold is measured, a vehicle position of the vehicle at the time when the in-vehicle sensor value is measured, and the in-vehicle sensor value. This is an event data processing method executed by a computer having an event database for storing event data including the measurement time of the event. The event data processing method receives a survey request including travel route information that is information in which a position on a route traveled by the first vehicle to be surveyed and a time at the position are associated with each other. (FIG. 18: S1001) and among the event data including identification information of the second vehicle other than the first vehicle in the event database, the vehicle position of the second vehicle is grasped from the travel route information of the first vehicle. An extraction step (FIG. 18: S1003) for extracting event data that satisfies the first condition of being in the vicinity of the travel position of the first vehicle at the measurement time for the second vehicle, and the first condition: A transmission step (FIG. 18: S1005) of generating survey result data using the vehicle position and measurement time included in the event data to be satisfied and transmitting the survey result data to the transmission source of the survey request.

  In this way, data of events that occurred in the vicinity of the first vehicle (that is, event data that satisfies the first condition) is extracted and generated using the vehicle position and measurement time included in the extracted data. Survey result data will be transmitted. Thereby, the research requester (for example, the driver of the first vehicle) can grasp an event that may have occurred due to the first vehicle. In addition, it is possible to know that the other vehicle has been inconvenienced without noticing, and it can be used for future driving.

  In the reception step described above, the acceleration value measured by the first vehicle may be further received. Then, in the extraction step described above, the event data satisfying the first condition has a value smaller than the first threshold value in a predetermined length of time period including the measurement time for the second vehicle. You may make it specify the event data which satisfy | fills the 2nd condition that the acceleration value more than the threshold value of 2 is measured with the 1st vehicle. Further, in the transmission step described above, survey result data may be generated using event data that satisfies the first condition and event data that satisfies the second condition. For example, if the fact that the event satisfies the second condition is displayed, the survey requester can grasp the event that the acceleration value has changed in the first vehicle, and whether or not there is a problem in his / her driving. It can be used for judgment.

  The event database described above may store video data captured by a vehicle camera in association with event data. In that case, in the transmission step described above, survey result data may be generated by further using video data stored in association with event data satisfying the first condition in the event database. For example, if video data can be confirmed, it will be possible to easily grasp whether or not there has been a problem with its own driving.

  If the travel position of the first vehicle at the measurement time for the second vehicle is not included in the travel route information of the first vehicle, the extraction step described above is included in the travel route information. The step of calculating the travel position of the first vehicle at the measurement time for the second vehicle may be included by performing the interpolation process using the travel positions before and after the measurement time for the second vehicle. Thus, by calculating by interpolating the travel position of the first vehicle, it is possible to determine with high accuracy whether or not it is in the vicinity of the travel position of the first vehicle.

  The extraction step described above calculates the distance between the traveling position of the first vehicle and the vehicle position of the second vehicle at the measurement time for the second vehicle, and the calculated distance is less than the predetermined distance. It may be possible to include a step of determining whether or not. For example, the determination may be made based on the road width.

  The event data processing apparatus according to the second aspect includes vehicle identification information in which an in-vehicle sensor value greater than or equal to a first threshold is measured, a vehicle position of the vehicle at the time when the in-vehicle sensor value is measured, and the in-vehicle sensor. An event database (FIG. 19: 1501) that stores event data including the measurement time of the value, information that associates the position on the route traveled by the first vehicle to be investigated and the time at the position. Among the event data including identification information of the second vehicle other than the first vehicle in the event database, the receiving unit (FIG. 19: 1503) that receives the survey request including certain travel route information, and the vehicle of the second vehicle Event data that satisfies the first condition that the position is in the vicinity of the traveling position of the first vehicle at the measurement time for the second vehicle, which is grasped from the traveling route information of the first vehicle, is extracted. And a transmission unit (FIG. 19: 1505) that generates survey result data using the vehicle position and measurement time included in the event data satisfying the first condition, and transmits the survey result data to the transmission source of the survey request. : 1507).

  A program for causing a computer to perform the processing described above can be created, such as a flexible disk, a CD-ROM, a magneto-optical disk, a semiconductor memory (for example, ROM), a hard disk, etc. Stored in a computer-readable storage medium or storage device. Note that data being processed is temporarily stored in a storage device such as a RAM.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Appendix 1)
An event for storing event data including vehicle identification information for which an in-vehicle sensor value equal to or greater than the first threshold is measured, a vehicle position of the vehicle at the time when the in-vehicle sensor value is measured, and a measurement time of the in-vehicle sensor value An event data processing method executed by a computer having a database,
A receiving step of receiving a survey request including travel route information that is information in which a position on a route traveled by the first vehicle to be investigated and a time at the position is associated;
Of the event data including identification information of the second vehicle other than the first vehicle in the event database, the vehicle position of the second vehicle is grasped from the travel route information of the first vehicle. An extraction step of extracting event data that satisfies the first condition that the second vehicle is in the vicinity of the travel position of the first vehicle at the measurement time;
A transmission step of generating survey result data using the vehicle position and the measurement time included in the event data satisfying the first condition, and transmitting the survey result data to a transmission source of the survey request;
An event data processing method executed by a computer.

(Appendix 2)
In the receiving step, further, an acceleration value measured by the first vehicle is received,
In the extraction step, among the event data that satisfies the first condition, a second value that is smaller than the first threshold value in a predetermined length of time period including the measurement time for the second vehicle. Identifying event data that satisfies the second condition that an acceleration value equal to or greater than a threshold value of the first vehicle is measured,
The event data processing method according to claim 1, wherein, in the transmission step, the survey result data is generated using event data satisfying the first condition and event data satisfying the second condition.

(Appendix 3)
The event database stores video data captured by the vehicle camera in association with the event data;
The event data processing according to claim 1 or 2, wherein, in the transmission step, the survey result data is generated by further using the video data stored in association with event data satisfying the first condition in the event database. Method.

(Appendix 4)
The extraction step comprises:
When the travel position of the first vehicle at the measurement time for the second vehicle is not included in the travel route information of the first vehicle, the second vehicle is included in the travel route information. Including the step of calculating the travel position of the first vehicle at the measurement time for the second vehicle by performing an interpolation process using the travel positions before and after the measurement time for 4. The event data processing method according to any one of 3.

(Appendix 5)
The extraction step comprises:
The distance between the travel position of the first vehicle and the vehicle position of the second vehicle at the measurement time for the second vehicle is calculated, and it is determined whether the calculated distance is less than a predetermined distance. The event data processing method according to any one of appendices 1 to 4, further comprising a step.

(Appendix 6)
Receiving a survey request including travel route information, which is information in which a position on a route traveled by the first vehicle to be surveyed is associated with a time at the position;
An event for storing event data including vehicle identification information for which an in-vehicle sensor value equal to or greater than the first threshold is measured, a vehicle position of the vehicle at the time when the in-vehicle sensor value is measured, and a measurement time of the in-vehicle sensor value Of the event data including identification information of the second vehicle other than the first vehicle in the database, the vehicle position of the second vehicle is obtained from the travel route information of the first vehicle. Extracting event data that satisfies the first condition that the vehicle is in the vicinity of the travel position of the first vehicle at the measurement time for the vehicle;
Generating survey result data using the vehicle position and the measurement time included in the event data satisfying the first condition, and transmitting the survey result data to a transmission source of the survey request;
A program that causes a computer to execute.

(Appendix 7)
An event for storing event data including vehicle identification information for which an in-vehicle sensor value equal to or greater than the first threshold is measured, a vehicle position of the vehicle at the time when the in-vehicle sensor value is measured, and a measurement time of the in-vehicle sensor value A database,
A receiving unit that receives a survey request including travel route information that is information in which a position on a route traveled by the first vehicle to be investigated and a time at the position is associated;
Of the event data including identification information of the second vehicle other than the first vehicle in the event database, the vehicle position of the second vehicle is grasped from the travel route information of the first vehicle. An extraction unit that extracts event data that satisfies the first condition that the second vehicle is in the vicinity of the travel position of the first vehicle at the measurement time;
A transmission unit that generates survey result data using the vehicle position and the measurement time included in the event data satisfying the first condition, and transmits the survey result data to a transmission source of the survey request;
An event data processing apparatus.

1 Network 3 Vehicle 5 Server 7 PC
300, 300b In-vehicle device 301 Acceleration sensor 303 Acceleration data storage unit 305 Near-miss detection unit 307 Position sensor 309 Travel route information storage unit 311 Near-miss information storage unit 313 Transmission unit 315 Camera 317 Video data storage unit 501 Reception unit 503 Near-miss DB
505 Survey related data storage unit 507 Search processing unit 509 Processing result storage unit 511 Acceleration change determination unit 513 Transmission unit

Claims (5)

Access to the event database storing event data including the measurement time of the vehicle position and the acceleration value of the vehicle at the time the identification information and the acceleration value of the vehicle acceleration value above the first threshold value is measured is measured An event data processing method executed by a computer,
A receiving step of receiving a survey request including travel route information that is information in which a position on a route traveled by the first vehicle to be investigated and a time at the position is associated;
The event database is searched, and among the event data including identification information of the second vehicle other than the first vehicle, the vehicle position of the second vehicle is obtained from the travel route information of the first vehicle. Extracting, from the event database, event data that satisfies the first condition of being grasped and being in the vicinity of the travel position of the first vehicle at the measurement time for the second vehicle;
A transmission step of generating survey result data using the vehicle position and the measurement time included in the event data satisfying the first condition, and transmitting the survey result data to a transmission source of the survey request;
An event data processing method executed by a computer. In the receiving step, further, an acceleration value measured by the first vehicle is received,
In the extraction step, among the event data that satisfies the first condition, a second value that is smaller than the first threshold value in a predetermined length of time period including the measurement time for the second vehicle. Identifying event data that satisfies the second condition that an acceleration value equal to or greater than a threshold value of the first vehicle is measured,
The event data processing method according to claim 1, wherein, in the transmission step, the survey result data is generated using event data satisfying the first condition and event data satisfying the second condition. The event database stores video data captured by the vehicle camera in association with the event data;
3. The event data according to claim 1, wherein, in the transmission step, the investigation result data is generated by further using the video data stored in association with event data satisfying the first condition in the event database. Processing method. Receiving a survey request including travel route information, which is information in which a position on a route traveled by the first vehicle to be surveyed is associated with a time at the position;
Search events database acceleration value greater than or equal to a first threshold value to store event data including the measurement time of the vehicle position and the acceleration value of the vehicle at the time the identification information and the acceleration value is measured in the vehicle which is measured Then , among the event data including identification information of the second vehicle other than the first vehicle, the vehicle position of the second vehicle is grasped from the travel route information of the first vehicle. Extracting, from the event database, event data that satisfies a first condition of being in the vicinity of the travel position of the first vehicle at the measurement time for two vehicles;
Generating survey result data using the vehicle position and the measurement time included in the event data satisfying the first condition, and transmitting the survey result data to a transmission source of the survey request;
A program that causes a computer to execute. An event database storing event data including identification information of a vehicle in which an acceleration value equal to or greater than a first threshold is measured, a vehicle position of the vehicle at the time when the acceleration value is measured, and a measurement time of the acceleration value ;
A receiving unit that receives a survey request including travel route information that is information in which a position on a route traveled by the first vehicle to be investigated and a time at the position is associated;
Of the event data including identification information of the second vehicle other than the first vehicle in the event database, the vehicle position of the second vehicle is grasped from the travel route information of the first vehicle. An extraction unit that extracts event data that satisfies the first condition that the second vehicle is in the vicinity of the travel position of the first vehicle at the measurement time;
A transmission unit that generates survey result data using the vehicle position and the measurement time included in the event data satisfying the first condition, and transmits the survey result data to a transmission source of the survey request;
An event data processing apparatus.

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