JP2015011683A - Driving evaluation index generation method, information processing apparatus, vehicle-mounted device, control method thereof, and control program - Google Patents

Abstract

A driving evaluation index is generated using a relationship between a driver's operation and a vehicle behavior. A vehicle acquisition information receiving unit 110 is connected to a vehicle 101 and receives vehicle acquisition information including vehicle operation information 111 representing vehicle operation by a driver 102 and vehicle behavior information 112 representing behavior of the vehicle 101 from the vehicle 101. Then, using the relationship between the vehicle operation information 111 and the vehicle behavior information 112, an index value generation unit 120 that generates an index value 121 that serves as an index for evaluating the driving of the driver 102, and an index value 121 And a first communication unit 130 that transmits to the wireless communication terminal 103 provided in the network. [Selection] Figure 1

Description

  The present invention relates to a technique for generating an index value for driving evaluation in an in-vehicle device.

  In the above technical field, Patent Document 1 discloses a technique in which a diagnostic control ECU of an in-vehicle investigation device acquires state information and transmits it to the information center in response to an information collection request from the information center to the target vehicle. .

Japanese Patent No. 3473355

  However, in the technique described in the above document, the state information acquired and transmitted to the information center by the diagnosis control ECU of the in-vehicle investigation device is vehicle diagnosis information corresponding to the check code indicating the investigation program, and the driver's driving It was not possible to generate an index for evaluating the information and provide it to the information center.

  The objective of this invention is providing the technique which solves the above-mentioned subject.

In order to achieve the above object, the vehicle-mounted device according to the present invention includes:
Vehicle acquisition information receiving means connected to the vehicle for receiving vehicle operation information representing vehicle operation by a driver and vehicle acquisition information representing vehicle behavior information from the vehicle;
Index value generating means for generating an index value that serves as an index for evaluating the driving of the driver, using the relationship between the vehicle operation information and the vehicle behavior information;
First communication means for transmitting the index value to a wireless communication terminal provided outside the vehicle;
Is provided.

In order to achieve the above object, an information processing apparatus according to the present invention provides:
Evaluation means is provided for receiving the index value from the vehicle-mounted device described above and performing driving evaluation of the driver based on the index value.

In order to achieve the above object, the control method of the vehicle-mounted device according to the present invention is:
A vehicle acquisition information receiving step connected to the vehicle and receiving vehicle acquisition information including vehicle operation information representing vehicle operation by a driver and vehicle behavior information representing behavior of the vehicle;
An index value generation step for generating an index value that serves as an index for evaluating the driving of the driver, using the relationship between the vehicle operation information and the vehicle behavior information;
A first communication step of transmitting the index value to a wireless communication terminal provided outside the vehicle;
including.

In order to achieve the above object, the control program for the vehicle-mounted device according to the present invention is:
A vehicle acquisition information receiving step connected to the vehicle and receiving vehicle acquisition information including vehicle operation information representing vehicle operation by a driver and vehicle behavior information representing behavior of the vehicle;
An index value generation step for generating an index value that serves as an index for evaluating the driving of the driver, using the relationship between the vehicle operation information and the vehicle behavior information;
A first communication step of transmitting the index value to a wireless communication terminal provided outside the vehicle;
Is executed on the computer.

In order to achieve the above object, an index generation method for driving evaluation according to the present invention includes:
An information acquisition step of obtaining vehicle acquisition information including vehicle operation information representing vehicle operation by the driver and vehicle behavior information representing the behavior of the vehicle;
With reference to storage means that associates and stores the relationship between the vehicle operation information and the vehicle behavior information and an index value that is an index for evaluating the driver's driving, the vehicle operation information and the vehicle behavior information An index value generating step for generating the index value using the relationship of
including.

  ADVANTAGE OF THE INVENTION According to this invention, the parameter | index of driving evaluation can be produced | generated using the relationship between a driver | operator's operation and the behavior of a vehicle.

It is a block diagram which shows the structure of the onboard equipment which concerns on 1st Embodiment of this invention. It is a figure which shows the use of the information obtained by the onboard equipment which concerns on 2nd Embodiment of this invention. It is a figure which shows the use of the information obtained by the onboard equipment which concerns on 2nd Embodiment of this invention. It is a figure which shows the outline | summary of the information processing system containing the onboard equipment which concerns on 2nd Embodiment of this invention. It is a figure which shows the flow of the information collection containing the onboard equipment which concerns on 2nd Embodiment of this invention. It is a figure which shows the external appearance of the onboard equipment which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the function structure of the onboard equipment which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the structure of the index value production | generation algorithm database which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the onboard equipment which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the vehicle acquisition information which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the index value production | generation table which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the access point transmission accumulation | storage information which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the process sequence of the onboard equipment which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the procedure of the WiFi communication establishment process which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the procedure of the index value production | generation process which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the management server which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the driving | operation evaluation table which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the process sequence of the management server which concerns on 2nd Embodiment of this invention.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the constituent elements described in the following embodiments are merely examples, and are not intended to limit the technical scope of the present invention only to them. “Driver's driving evaluation” in this specification means, for example, driving by a driver such as rough driving (including rough driving and irregular driving), safe driving, eco driving (≈ economical driving), etc. It means to evaluate the tendency.

[First Embodiment]
An in-vehicle device 100 as a first embodiment of the present invention will be described with reference to FIG. The vehicle-mounted device 100 is a device that collects vehicle acquisition information acquired from the vehicle 101 and transmits it to the outside.

  As shown in FIG. 1, the vehicle-mounted device 100 includes a vehicle acquisition information reception unit 110, an index value generation unit 120, and a first communication unit 130. The vehicle acquisition information receiving unit 110 is connected to the vehicle 101 and receives from the vehicle 101 vehicle acquisition information including vehicle operation information 111 representing vehicle operation by the driver 102 and vehicle behavior information 112 representing the behavior of the vehicle 101. The index value generation unit 120 uses the relationship between the vehicle operation information 111 and the vehicle behavior information 112 to generate an index value 121 that serves as an index for evaluating the driving of the driver 102. The first communication unit 130 transmits the index value 121 to the wireless communication terminal 103 provided outside the vehicle 101.

  According to the present embodiment, it is possible to generate an index for driving evaluation using the relationship between the operation of the driver and the behavior of the vehicle.

[Second Embodiment]
Next, an information processing system including the vehicle-mounted device according to the second embodiment of the present invention will be described. According to this embodiment, the vehicle-mounted device includes vehicle operation information representing vehicle operation and vehicle behavior information representing vehicle behavior, which are included in the vehicle acquisition information from the vehicle via an OBD-II (On-board diagnostics 2) connector. And get. The vehicle-mounted device generates an index value that serves as an index for driving evaluation of the driver, using the relationship between the acquired vehicle operation information and vehicle behavior information. In the service station, the data is transmitted to the wireless communication terminal of the service station. The management server receives and accumulates vehicle acquisition information including an index value serving as an index for driving evaluation corresponding to the vehicle ID and the driver ID from the service station. And based on the vehicle acquisition information containing the index value used as the parameter | index of the accumulated driving | operation evaluation, driving | running evaluation is performed and the driver | operator's safe driving assistance service information is provided.

《Service information for safe driving support》
An example of service information by the management server based on information including an index value obtained by the vehicle-mounted device in the present embodiment will be described according to FIGS. 2A and 2B.

  FIG. 2A is a diagram illustrating a safe driving evaluation chart provided to an individual driver from information obtained by the vehicle-mounted device according to the present embodiment, and a driver evaluation list observed by a manager of the business establishment.

  The evaluation chart 211 is provided to the driver's individual user terminal 210, and is an index value (for example, a sharp handle) generated by the vehicle-mounted device related to safe driving, or vehicle acquisition information (for example, engine rotation) that is directly used as the index value. Number). And the hint of the safe drive according to an evaluation chart is provided.

  The driver evaluation list 221 is provided to the manager terminal 220 of the manager who belongs to the office, and is associated with the driver ID, and is a safe driving that is an evaluation result evaluated by the management server from the vehicle acquisition information including the index value. Evaluation and eco-driving evaluation are shown. The driver individual evaluation 222 is provided by selecting a specific driver ID from the driver evaluation list 221. In FIG. 2A, the history and rank of the driver's individual for safe driving evaluation are shown. .

  FIG. 2B is a diagram showing a safe driving evaluation chart and a driver evaluation result including an index value generated in the present embodiment from information obtained by the vehicle-mounted device according to the present embodiment.

  The evaluation chart and the driver evaluation result 231 display values such as a sharp handle, the number of pauses, a blinker lighting violation, a rapid reverse, and an idling rate, which are index values generated in the present embodiment.

《Information processing system》
FIG. 3A is a diagram illustrating an overview of an information processing system including the vehicle-mounted device 300 according to the present embodiment. In FIG. 3A, one service station is illustrated, but in the present embodiment, a number of service stations perform the same processing.

  The information processing system generally includes an in-vehicle device 300, a service station terminal (hereinafter referred to as SS terminal) 322 provided in the service station 320, a service station server (hereinafter referred to as SS server) 323, and a POS (Point Of Sales) terminal 224. . Further, the information processing system includes a management server 330, a user terminal 210, and an administrator terminal 220. The SS server 323, the POS terminal 324, the user terminal 210, and the administrator terminal 220 are connected to the management server 330 via the network 340. A refueling machine 325 is connected to the POS terminal 324.

  The vehicle-mounted device 300 is detachably connected to a failure diagnosis connector (for example, a connector conforming to the OBD-II standard) of the vehicle 310, and vehicle operation information representing vehicle operation by the driver and vehicle behavior information representing vehicle behavior. The vehicle acquisition information including is acquired. The vehicle-mounted device 300 of this embodiment generates an index value that serves as an index for driving evaluation of the driver, using the relationship between the acquired vehicle operation information and vehicle behavior information. Then, the vehicle acquisition information including the index value is transmitted to the management server 330 from the access point 321 provided in the service station 320 via the SS server 323.

  The service station 320 supplies a power source (for example, gasoline, light oil, natural gas, hydrogen, electric power, etc.) to the vehicle 310 and other services to the vehicle. In the service station 320, an access point 321, an SS server 323, an SS terminal 322, and a POS terminal 324 are arranged.

  The access point 321 performs Wi-Fi communication with the vehicle-mounted device 300 mounted on the vehicle 310 that has traveled to the service station 320 and stopped. The SS terminal 322 is connected to the SS server 323 to input information and monitor information, and can receive service information of the management server 330. The SS server 323 receives vehicle acquisition information including an index value that is accumulated information of the vehicle-mounted device 300 via the access point 321, and transfers the accumulated information to the management server 330 via the network 340.

  The POS terminal 324 is connected to a refueling machine 325 serving as a power source supplying machine for refueling the vehicle 310 at the service station 320, manages sales information such as fuel costs, and the management server 330 via the network 340. Send sales information to. The information of the POS terminal 324 is aggregated by a POS server (not shown) and transmitted to the management server 330.

  The management server 330 is connected to a communication terminal installed in the service station 320 via the network 340, collects accumulated information including an index value from the vehicle-mounted device 300, and performs rough driving and safe driving from the collected accumulated information. Evaluate and generate service information from the evaluation results. The management server 330 associates the accumulated information including the index value received from the SS server 323 of the service station 320 with the vehicle and driver identifiers (hereinafter, vehicle ID, driving vehicle ID), and the accumulated information history DB (not shown). )). The vehicle ID may be added by the vehicle-mounted device 300 or may be an automobile registration number mark (characters and numbers written on the number plate).

  The user terminal 210 is a terminal for a user driving the vehicle 310 to observe service information from the management server 330. The manager terminal 220 is a terminal for the manager of the business office to which the vehicle 310 belongs to observe service information regarding the affiliated vehicle and the affiliated driver from the management server 330.

  In such a configuration, the vehicle-mounted device 300 receives vehicle acquisition information including vehicle operation information and vehicle behavior information from the vehicle 310, performs primary processing, generates an index value, and stores it as on-vehicle device storage information. In the service station 320, the SS server 323 acquires the in-vehicle device storage information from the on-vehicle device 300 via the access point 321 and temporarily stores it. Then, the SS server 323 transmits the in-vehicle device accumulation information to the management server 330. The management server 330 collects the in-vehicle device storage information acquired from the on-vehicle device 300 and stores it in association with the vehicle ID and the driver ID. When there is a request for service information from the user terminal 210 or the administrator terminal 220, the management server 330 evaluates the driver's violent driving or safe driving based on the in-vehicle device accumulation information including the index value, and related service information. Is generated and provided to the user terminal 210 or the administrator terminal 220.

  As described above, the in-vehicle device storage information stored in the in-vehicle device 300 and the generated index value are collected in the management server 330, and the driver's rough driving and safe driving are performed based on the in-vehicle device storage information including the index value. It is possible to effectively generate and provide related service information by evaluation.

"Information gathering"
FIG. 3B is a diagram illustrating a flow of information collection including the vehicle-mounted device 300 according to the present embodiment. FIG. 3B is a block diagram showing configurations and relationships of the engine electronic control device 311, the vehicle-mounted device 300, and the SS server 323 that control the vehicle 310 according to the present embodiment. Note that the configuration of FIG. 3B is an example thereof, and the present invention is not limited to this configuration. In addition, individual descriptions of each component (block) in FIG. 3B are omitted.

  The engine electronic control device 311 is an electronic circuit that controls the engine of the vehicle 310. The engine electronic control device 311 includes an engine control unit (ECU in the figure) 312 that controls the entire control, and a power supply circuit 313 that supplies operation power to the engine control unit 312. The engine electronic control device 311 communicates with the outside via an input / output circuit 314 that transmits signals from various sensors that detect the state of the vehicle 310 to the engine control unit 312 and a failure diagnosis connector (OBD-II) 361. Communication circuit 315 for performing the above. Here, the vehicle acquisition information transmitted and output via the vehicle diagnosis connector 361 is acquired by a command from the OBD-II interface 301 of the vehicle-mounted device 300. The power supply from the battery 352 to the engine electronic control device 311 is disconnected by an ignition switch (SW in the figure) 351. Note that the power (+12 V / + 24 V) of the vehicle-mounted device 300 is always supplied via the vehicle diagnosis connector 361 without passing through the ignition switch 351.

  The connector 362 of the vehicle-mounted device 300 is connected to the OBD-II interface 301 via a protection circuit, and obtains vehicle acquisition information (including a failure code) from the engine electronic control device 311. The in-vehicle device 300 generates an index value serving as an index for driving evaluation from the vehicle acquisition information, and stores the index value in the index value storage unit 306. And the onboard equipment 300 determines ON / OFF of an ignition switch from the signal change of the connector 362, and accumulate | stores vehicle acquisition information and an index value during ON. On the other hand, when determining that the vehicle-mounted device 300 is OFF, the vehicle-mounted device 300 transmits vehicle acquisition information including the index value stored in the index value storage unit 306 to the outside via the wireless LAN module 309. That is, when detecting the power-off of the ignition device in the vehicle, the vehicle-mounted device 300 transmits the index value generated from the power-on of the ignition device to the power-off to the SS server 323 as a wireless communication terminal.

  The wireless LAN module 309 communicates with the LAN module 372 of the SS server 323 via the access point 321 of the service station 320. The CPU 371 of the SS server 323 transmits the in-vehicle device storage information including the index value received from the on-vehicle device 300 via the access point 321 to the management server 330 via the communication control unit 373 as needed or in batch.

<Onboard equipment>
With reference to FIG. 4A-FIG. 11, the structure and operation | movement of the onboard equipment 300 of this embodiment are demonstrated.

(appearance)
FIG. 4A is a diagram illustrating an appearance of the vehicle-mounted device 300 according to the present embodiment. The vehicle-mounted device 300 is connected to the vehicle diagnosis connector 361, acquires information from an engine computer or the like, generates an index value, stores it, and sends it to the access point 321 via the wireless LAN. The connection is completed simply by connecting the connector 362 of the vehicle-mounted device 300 to the vehicle diagnosis connector 361. As for the vehicle diagnosis connector 361 and the connector 362 of the vehicle-mounted device 300, 16 pins are standard specifications in OBD-II, 4 pins and 5 pins are GND, and 16 pins are a power supply (+ 12V). Other pins may vary depending on the vehicle manufacturer. On the back surface 382 of the vehicle-mounted device 300, a lamp indicating that communication is being performed via a wireless LAN and a lamp indicating that vehicle acquisition information (OBD information) is being received from the vehicle are provided.

<Functional configuration>
FIG. 4B is a block diagram illustrating a functional configuration of the vehicle-mounted device 300 according to the present embodiment.

  In FIG. 4B, an OBD-II interface 301 is an interface for acquiring information on a self-failure diagnosis result in the engine electronic control device of the vehicle 310 via the OBD-II connector. The vehicle acquisition information receiving unit 403 obtains vehicle acquisition information via the OBD-II interface 301, stores the vehicle acquisition information as it is in the in-vehicle device accumulation information database 406, and passes it to the driving index value generation unit 405. The driving index value generation unit 405 generates an index value from the vehicle acquisition information according to the algorithm of the index value generation algorithm database 404 and stores the index value in the index value storage unit 306. Since the capacity of the in-vehicle device storage information database 406 is limited, it may be devised to overwrite new information from the oldest stored information or from information of low importance.

  The ignition ON / OFF determination unit 402 receives the change in the signal level of the OBD-II connector in the OBD-II interface 301 and determines the ignition ON / OFF. Upon receiving the ignition OFF determination signal from the ignition ON / OFF determination unit 402, the index value transmission unit 408 searches the communication control unit (wireless LAN module) 309 for the access point 321 and, in this example, WiFi communication is performed. Instruct the establishment. Note that short-range wireless communication is not limited to WiFi communication. Then, when the WiFi communication is established, the index value transmission unit 408 adds the vehicle ID storage unit to the data in the vehicle-mounted device accumulation information database 406 including the index value of the index value storage unit 306 accumulated from the previous ignition ON. The vehicle ID stored in 407 is attached. Then, the index value transmission unit 408 transmits the vehicle-mounted device accumulation data with the vehicle ID to the SS server 323 via the communication control unit 309 and the access point 321. Note that the data in the index value storage unit 306 and the in-vehicle device accumulation information database 406 may be transmitted in a unit of a fixed time instead of the accumulation information from ignition ON to OFF. Further, if there is an on-vehicle device storage information transmission error at the time of the previous ignition OFF, the on-vehicle device storage information including the index value from the previous ignition ON is transmitted.

(Index value generation algorithm database)
FIG. 5 is a block diagram illustrating a configuration of the index value generation algorithm database 404 according to the present embodiment. The index value generation algorithm database 404 stores an index value generation algorithm so as to be searchable by a target index value to be generated.

  The index value generation algorithm database 404 stores the acquisition unit, recording contents, and index value generation algorithm of the item in association with the target index value item. In FIG. 5, in particular, the index values generated by the driving index value generation unit 405 as the driving evaluation index in the present embodiment are surrounded by a thick frame. In this embodiment, the number of acquisition units for each item is counted for each event occurrence unit, and the number of trips from ignition on to off is organized and recorded. However, the recording of each item may be performed at predetermined time intervals.

  The driving index value generation unit 405 generates the number of sudden handles 501 using the steering angle and the vehicle speed for each event. For each vehicle speed range, a threshold value of (θ (degree) / s) is set in advance. For example, when it is set to 45 ° / s at 60 to 70 km / h, the vehicle speed is 65 ° / s and 50 ° / s. When the handle is cut, the event count is incremented.

  The driving index value generation unit 405 calculates and acquires the blinker 502 at the time of turning right and left at the intersection for each event. The driving index value generation unit 405 counts the number of times that the travel distance is 30 m or less until the steering angle becomes 45 degrees or more after the winker-on is recognized. If the travel distance is simply when the blinker is lit, “30 m before the intersection” cannot be detected, so the distance to the point where the vehicle enters the intersection and starts turning the steering angle is determined. In addition, re-on within 2 seconds after winker on / off recognition is not measured. This is because if the winker returns for some reason, it is considered that the lever has been operated again, and is excluded so as not to count violations.

  The driving index value generation unit 405 calculates and acquires the number of pauses 503 for each event. Since confirmation of the temporary stop location by the driving index value generation unit 405 is impossible only from the travel data, it is determined that the vehicle should stop twice during the temporary stop, and “the number of times of stopping twice” is recorded. The driving index value generation unit 405 counts the number of stoppages of 1 second or more again within 00 seconds (for example, within 6 seconds) after stopping for 1 second or more as the number of suspensions 503. In the index value generation algorithm, the vehicle stop is detected again after the vehicle stops for the first time or more as the vehicle behavior information based on the brake operation as the vehicle operation information. When the vehicle stops for the first time or more as the vehicle behavior information based on the brake operation as the vehicle operation information within the second time interval, the vehicle is determined to be a temporary stop action, and temporarily as a part of the index value Increment the number of stops.

  The driving index value generation unit 405 calculates and acquires the back speed 504 for each event. The driving index value generation unit 405 records (accumulates) the distance traveled by the gear position in the reverse (reverse) position in units of 0.01 km as the speed 504 at the time of reverse, and records the number of times. Further, the driving index value generation unit 405 may count the speed 504 at the time of back if the average of acceleration for 3 seconds from the start of traveling is fast when the back position and the traveling distance are present. Further, in the index value generation algorithm, when the vehicle is traveling backward based on the reverse operation as the vehicle operation information, if the speed or acceleration is greater than a certain value as the vehicle behavior information, The number of reverse operations may be incremented.

  The driving index value generation unit 405 sets the long-time idling flag 505 for each event. The driving index value generation unit 405 sets a flag when idling time has been continuously stopped for 10 minutes or more as long-term idling. As the idling time, the total idling time from ignition on to off is recorded. Note that when the driving index value generation unit 405 calculates the idling frequency 505 for a long time, it counts the idling frequency for a long-time idling period of 0.00 minutes or more (for example, 10 minutes or more). For example, in the index value generation algorithm, when idling as the vehicle behavior information after the neutral operation as the vehicle operation information is continued for 3 hours or more while the vehicle is stopped based on the brake operation as the vehicle operation information, one of the index values The idling number of long time as a part is incremented.

  The index value generation algorithm of the present embodiment generates an index value that serves as an index for driving evaluation of the driver, using the relationship between the vehicle operation information and the vehicle behavior information included in the vehicle acquisition information. It is not limited to FIG.

<Hardware configuration>
FIG. 6 is a block diagram illustrating a hardware configuration of the vehicle-mounted device 300. In FIG. 6, a CPU (Central Processing Unit) 610 is a processor for arithmetic control, and implements each functional component shown in FIG. 4B by executing various programs. A flash ROM (Read Only Memory) 620 is provided integrally with the CPU 610 and is contained in a CPU chip molded with resin. The flash ROM 620 stores fixed data and programs such as initial data and programs. The RAM 640 functions as an arithmetic work area that holds temporary data written after the CPU 610 starts operation, and an area for storing temporary data written after the CPU 610 starts operation is secured. The RAM 640 is also provided integrally with the CPU 610. That is, a CPU core, flash ROM 620 and RAM 640 are mounted on a so-called “die”. The communication control unit 309 communicates with the SS server 323 via the access point 321. Note that the number of CPUs 610 is not limited to one, and a plurality of CPUs 610 may be included or a GPU for image processing may be included. Further, the communication control unit 309 may have a CPU independent of the CPU 610 and write or read transmission / reception data in the area of the flash ROM 620. The CPU 610 prepares the processing result in the large-capacity flash memory 650 and leaves the subsequent transmission to the communication control unit 309.

  In the flash ROM 620, the OBD-II input / output command data 621 is an input / output command for the OBD-II interface 301 to obtain vehicle acquisition information and a diagnostic code for self-diagnosis. The vehicle acquisition information (OBD-II data) 622 is vehicle acquisition information obtained by the OBD-II interface 301 and a diagnostic code for self-diagnosis. The index value generation table 623 is a table used when generating an index value using the relationship between the vehicle operation information and the vehicle behavior information included in the vehicle acquisition information (OBD-II data) 622. The access point transmission accumulation information 624 is onboard equipment accumulation information including an index value that is transmitted by WiFi communication with the access point 321.

  The large-capacity flash memory 650 stores data acquired from the vehicle and various parameters. Here, the on-board unit storage information database 406 is stored in the large-capacity flash memory 350. The index value storage unit 306 is a storage unit that stores the generated index that is included in the in-vehicle device accumulation information database 406. The index value generation algorithm database 404 is the database shown in FIG.

  The index value generation module 626 is a module for analyzing the vehicle acquisition information obtained through the OBD-II connector using an index value generation algorithm and generating an index value. The data transmission module 628 is a module that transmits the in-vehicle device accumulation information to the SS server 323 via the access point 321. The data transmission module 628 includes an existing WiFi driver.

(Vehicle acquisition information)
FIG. 7A is a diagram showing a configuration of the vehicle acquisition information 622 according to the present embodiment.

  In FIG. 7A, PID711 is the identifier of the vehicle acquisition information 642 acquired via an OBD-II interface. The contents 712 are contents of information identified by each PID 711. In FIG. 7A, 32 PIDs 711 are shown as a part of the vehicle acquisition information 642. However, in OBD-II, the 32 pieces of information in FIG. 7A are only the first 32 pieces of mode (Mode) 01 (HEX). For details, refer to SAE (Society of Automotive Engineers) standard J / 1979.

(Index value generation table)
FIG. 7B is a diagram showing a configuration of the index value generation table 623 according to the present embodiment. The index value generation table 623 analyzes the information as shown in FIG. 7A obtained by the OBD-II interface 301, and uses the relationship between the vehicle operation information and the vehicle behavior information included in the vehicle acquisition information, Is the table used to generate

  The index value generation table 623 stores vehicle operation information 722 and vehicle behavior information 723 included in the vehicle acquisition information, an index value generation algorithm 724, and a generated index value 725 in association with the index value 721 to be acquired. To do. When the index value 725 is, for example, sudden acceleration or sudden steering, the number of appearances is counted. That is, in the index generation in the vehicle-mounted device 300 of the present embodiment, the relationship between the vehicle operation information and the vehicle behavior information obtained by the information acquisition procedure is stored in association with the index value that serves as an index for driving evaluation of the driver. , Generate index values.

(Access point transmission accumulation information)
FIG. 8 is a diagram showing a configuration of the access point transmission accumulation information 624 according to the present embodiment. The access point transmission accumulation information 624 is in-vehicle device accumulation information including an index value transmitted from the on-vehicle device 300 to the SS server 323 via the access point 321 of the service station 320, and includes the index value storage unit 306. This is information read from the container storage information database 406. In addition, when the access point transmission accumulation information 644 is organized and stored in units of trips, it is sent as one record for each trip. Then, since the response of confirmation of receiving the data comes from the SS server 323, it is managed that it has been transmitted. On the other hand, when records are organized and held in time units, they are sent as one record for each time zone.

  The access point transmission accumulation information 624 indicates a unit 842 of information and a byte number 843 in association with an index value item 841 for evaluating rough driving, safe driving, and eco driving. It should be noted that each information item 841 determines in advance whether such information is information of a period from ignition ON to OFF, information of a day unit, a predetermined time unit, or an event occurrence unit. Yes. In particular, the index values for the rough driving evaluation in the present embodiment are surrounded by a thick frame. Further, the access point transmission accumulation information 644 may include a part or the whole of the service information generation in the management server 330 such as the vehicle acquisition information and the failure code.

<Processing procedure>
FIG. 9 is a flowchart showing a processing procedure of the vehicle-mounted device 300 according to the present embodiment. This flowchart is executed by the CPU 610 using the flash ROM 620 and the RAM 640, and implements the functional components shown in FIG. 4B.

  In step S901, the on-vehicle device 300 determines ON / OFF of the ignition. When determining that the ignition is turned off, the vehicle-mounted device 300 executes a WiFi communication establishment process with the access point 321 of the service station 320 in step S903 (see FIG. 10). When the WiFi communication with the access point 321 is established, the in-vehicle device 300 reads out the in-vehicle device accumulation information including the index value from the ignition ON time in step S905. Next, the onboard equipment 300 produces | generates the transmission data for transmitting onboard equipment storage information including an index value to the SS server 323 via the access point 321 in step S907. And the onboard equipment 300 transmits data to the access point 321 by WiFi communication in step S909.

  If it is determined that the ignition is turned on, the vehicle-mounted device 300 accesses desired vehicle acquisition information (including a failure code) through the OBD-II interface 301 in step S911. In step S913, the vehicle-mounted device 300 determines the presence / absence of vehicle operation information and vehicle behavior information necessary for generating an index value to be generated. If there is no desired vehicle operation information or vehicle behavior information, the process ends without doing anything. If there is desired vehicle operation information and vehicle behavior information, the vehicle-mounted device 300 stores the obtained vehicle operation information and vehicle behavior information in the vehicle-mounted device accumulated information database 406 in step S915. In step S919, the vehicle-mounted device 300 executes an index value generation process based on the vehicle operation information and the vehicle behavior information history information accumulated so far (see FIG. 11).

(WiFi communication establishment process)
FIG. 10 is a flowchart showing the procedure of the WiFi communication establishment process (S903) according to the present embodiment.

  In step S1001, the in-vehicle device 300 searches for an access point capable of WiFi communication with the in-vehicle device 300. This access point search is performed by receiving a becon signal from the access point. In step S1003, the vehicle-mounted device 300 compares the received intensities of the received beacons and selects the access point with the strongest signal as the communication partner. However, as shown in FIG. 3A, when there is only one access point 321 in the vicinity, the access point 321 is selected as a communication partner. Next, the vehicle-mounted device 300 establishes a connection with the selected access point (hereinafter referred to as an access point 321) in step S1005. For this purpose, the vehicle-mounted device 300 transmits a probe request (Probe Request) including an access point identifier (SSID: Service Set Identifier) included in the beacon to the access point 321. When the SSID of the beacon sent by the access point 321 matches the SSID of the probe request, the access point 321 returns a probe response to the in-vehicle device 300 and starts a communication establishment procedure. Detailed procedures for establishing communication are omitted. In step S1007, the in-vehicle device 300 acquires an IP address from the DHCP server, and the WiFi communication between the access point 321 and the in-vehicle device 300 is established.

(Index value generation process)
FIG. 11 is a flowchart showing a procedure of index value generation processing (S919) according to the present embodiment.

  In step S1121, the on-vehicle device 300 selects one index value to be generated. And the onboard equipment 300 selects the index value production | generation algorithm corresponding to the said index value in step S1123. In step S1125, the in-vehicle device 300 determines whether or not the data amount necessary for generating the index value is accumulated in accordance with the selected index value generation algorithm. For example, in the case of an index value generation algorithm that obtains an average value or a change over time, or uses them, the processing is performed if the necessary data amount or the necessary amount of elapsed time is not accumulated. Exit and return.

  On the other hand, if the necessary data amount is accumulated, the vehicle-mounted device 300 uses the vehicle operation information and the vehicle behavior information included in the vehicle acquisition information according to the selected index value generation algorithm in step S1127, and uses the index value. The generation process is performed. And the onboard equipment 300 stores the produced | generated index value in the index value storage part 306 in step S1129. In the index value for counting the number of times, the number of times is incremented.

<< Management Server >>
Referring to FIG. 12 to FIG. 14, a management server that provides service information by performing rough driving evaluation and safe driving evaluation using the index values generated by the vehicle-mounted device 300 of the present embodiment collected at the service station. explain.

<Hardware configuration>
FIG. 12 is a block diagram illustrating a hardware configuration of the management server 330 according to the present embodiment.

  In FIG. 12, a CPU 1210 is a processor for arithmetic control, and implements a functional component of the management server 330 by executing a program. The ROM 1220 stores fixed data and programs such as initial data and programs. In addition, the communication control unit 1230 communicates with the SS server 323 via a wireless LAN that passes through the access point 321.

  Note that the number of CPUs 1210 is not limited to one, and may be a plurality of CPUs or may include a GPU for image processing. Further, it is desirable that the communication control unit 1230 has a CPU independent of the CPU 1210 and write or read transmission / reception data in an area of the RAM 1240. Further, it is desirable to provide a DMAC for transferring data between the RAM 1240 and the storage 1250 (not shown). Therefore, the CPU 1210 recognizes that the data has been received or transferred to the RAM 1240 and processes the data. Further, the CPU 1210 prepares the processing result in the RAM 1240 and leaves the subsequent transmission or transfer to the communication control unit 1230 or the DMAC.

  The RAM 1240 is a random access memory that the CPU 1210 uses as a work area for temporary storage. The RAM 1240 has an area for storing data necessary for realizing the present embodiment. The vehicle ID / driver ID 1241 is a vehicle ID and a driver ID that are targets of the in-vehicle device storage information including the received index value. The in-vehicle device storage information 1242 including the index value is information transmitted from the SS server. The on-board device storage information 1242 including the index value may also include an OBD-II failure code. The driving evaluation table 1243 is a table used for performing driving evaluation of the driver from the vehicle-mounted device accumulated information 1242 including the index value (see FIG. 13). The service information table 1244 is a table for generating service information from information on a driver's rough driving evaluation and safe driving evaluation in response to a request for service information from the user terminal 210 or the administrator terminal 220. Transmission / reception data 1245 is data transmitted / received via the communication control unit 1230.

  The storage 1250 stores a database, various parameters, or the following data or programs necessary for realizing the present embodiment. The vehicle registration and driver registration database 1251 is a database for registering registered vehicles and drivers in order to receive service provision by the information processing system. The in-vehicle device accumulation information history database 1252 including the index value is a database that stores the history of the on-vehicle device accumulation information including the index value accumulated in the on-vehicle device received from the SS server. The driving evaluation algorithm database 1253 is a database that stores an algorithm for evaluating rough driving and safe driving from the onboard equipment accumulated information history database 1252 including index values. The service data generation database 1254 is a database that stores information for generating service data to be transmitted to the user terminal of the driver or the administrator terminal of the manager in response to the rough driving evaluation or the safe driving evaluation.

  The management server control program 1255 is a control program that controls the entire management server 330 (see FIG. 14). The driving evaluation module 1256 is a module that evaluates the driver's violent driving and safe driving based on the index value of the vehicle-mounted device accumulated information history database 1252 including the index value according to the driving evaluation algorithm. The service data generation module 1257 is a module that generates service information from information on a driver's rough driving evaluation and safe driving evaluation in response to a request for service information from the user terminal 210 or the administrator terminal 220.

  The RAM 1240 and the storage 1250 in FIG. 12 do not show programs and data related to general-purpose functions and other realizable functions that the management server 330 has.

(Driving evaluation table)
FIG. 13 is a diagram showing a configuration of the driving evaluation table 1243 included in the management server 330 according to the present embodiment.

  FIG. 13 shows items of on-board device storage information related to operation management 1301, items of on-vehicle device storage information related to safe driving support 1302, and items of on-vehicle device storage information related to eco-drive (eco-driving) support 1303. It is shown. Driving evaluation data is generated by combining the information of these items. In FIG. 13, index values similar to those in FIG. 5, which are characteristic in the present embodiment, are denoted by the same reference numerals and indicated by thick frames.

<Processing procedure>
FIG. 14 is a flowchart showing a processing procedure of the management server 330 according to the present embodiment. This flowchart is executed by the CPU 1210 using the RAM 1240, and implements a functional component of the management server.

  In step S1411, the management server 330 determines whether or not the in-vehicle device accumulation information including the index value is received from the SS server 323. In step S1421, the management server 330 determines whether the service request is from the user terminal 210 or the administrator terminal 220. If NO in any determination, the management server 330 performs other processing in step S1431 and ends the processing.

  When it determines with having received the onboard equipment accumulation | storage information containing an index value, the management server 330 acquires the onboard equipment accumulation | storage information containing the received index value in step S1413. Next, in step S1415, the management server 330 stores the in-vehicle device accumulation information including the index value in association with the vehicle ID and the driver ID.

  If it is determined that the service request is from the user terminal 210 or the administrator terminal 220, the management server 330 performs driving evaluation of the driver based on the index value in step S1423. Next, in step S1425, the management server 330 generates service output data or a message corresponding to the driving evaluation. In step S1427, the management server 330 transmits the generated service data (output data or message) to the user or administrator who requested the service information.

  According to the present embodiment, the vehicle-mounted device generates an index value indicating the relationship between the driver's operation and the behavior of the vehicle and transmits it to the management server, thereby facilitating the driver's driving evaluation. . Further, the vehicle-mounted device counts the number of times that the vehicle operation information and the vehicle behavior information satisfy a predetermined condition (relationship) as the index value, and stores it in association with the condition, so that the vehicle-mounted device stores the external device from the vehicle-mounted device. The amount of communication to can be significantly reduced. Therefore, the communication time is shortened and information transmission can be executed more reliably.

[Other Embodiments]
The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention. In addition, a system or an apparatus in which different features included in each embodiment are combined in any way is also included in the scope of the present invention.

  In addition, the present invention may be applied to a system composed of a plurality of devices, or may be applied to a single device. Furthermore, the present invention can also be applied to a case where an information processing program that implements the functions of the embodiments is supplied directly or remotely to a system or apparatus. Therefore, in order to realize the functions of the present invention on a computer, a control program installed in the computer, a medium storing the control program, and a WWW (World Wide Web) server that downloads the control program are also included in the scope of the present invention. include. In particular, at least a non-transitory computer readable medium storing a control program that causes a computer to execute the processing steps included in the above-described embodiments is included in the scope of the present invention.

Claims (11)

Vehicle acquisition information receiving means connected to the vehicle for receiving vehicle operation information representing vehicle operation by a driver and vehicle acquisition information representing vehicle behavior information from the vehicle;
Index value generating means for generating an index value that serves as an index for evaluating the driving of the driver, using the relationship between the vehicle operation information and the vehicle behavior information;
First communication means for transmitting the index value to a wireless communication terminal provided outside the vehicle;
On-vehicle device equipped with.   The on-vehicle device according to claim 1, wherein the index value generation unit counts the number of times that a relationship between the vehicle operation information and the vehicle behavior information satisfies a predetermined condition, and sets the index value.   The index value generating means has a steering angle of the steering wheel as the vehicle operation information equal to or greater than a first threshold value, and an increase in the steering angle of the steering wheel per unit time as the vehicle operation information is determined by a vehicle speed as the vehicle behavior information. The in-vehicle device according to claim 1, wherein when the divided value is equal to or greater than a second threshold value, the number of sudden handles as a part of the index value is incremented.   The index value generating means is a value obtained by integrating the vehicle speed as the vehicle behavior information immediately before the steering angle of the steering wheel as the vehicle operation information is equal to or greater than a predetermined value with the time from the turn-in of the blinker as the vehicle operation information. The on-vehicle device according to any one of claims 1 to 3, wherein the number of blinker lighting violations as a part of the index value is incremented when it is equal to or less than a third threshold value.   The index value generation means again performs the brake operation as the vehicle operation information within a second time interval after the vehicle stops for the first time or more as the vehicle behavior information based on the brake operation as the vehicle operation information. Any one of the Claims 1 thru | or 4 which judge that it is a pause action and increment the number of pauses as a part of the index value when the vehicle stops for the first time or more as the vehicle behavior information based on The vehicle equipment as described in a term.   If the speed or acceleration is not less than a certain value as the vehicle behavior information when the vehicle is traveling backward based on the reverse operation as the vehicle operation information, the index value generation means is a part of the index value The in-vehicle device according to any one of claims 1 to 5, wherein the number of rapid reverse operation times is incremented.   When the idling as the vehicle behavior information after the neutral operation as the vehicle operation information is continued for a third time or more while the vehicle is stopped based on the brake operation as the vehicle operation information, The vehicle-mounted device according to any one of claims 1 to 6, wherein the super-time idling count as a part of the value is incremented.   An information processing apparatus comprising: an evaluation unit that receives the index value from the vehicle-mounted device according to any one of claims 1 to 7 and performs driving evaluation of the driver based on the index value. A vehicle acquisition information receiving step connected to the vehicle and receiving vehicle acquisition information including vehicle operation information representing vehicle operation by a driver and vehicle behavior information representing behavior of the vehicle;
An index value generation step for generating an index value that serves as an index for evaluating the driving of the driver, using the relationship between the vehicle operation information and the vehicle behavior information;
A first communication step of transmitting the index value to a wireless communication terminal provided outside the vehicle;
Control method for in-vehicle device including A vehicle acquisition information receiving step connected to the vehicle and receiving vehicle acquisition information including vehicle operation information representing vehicle operation by a driver and vehicle behavior information representing behavior of the vehicle;
An index value generation step for generating an index value that serves as an index for evaluating the driving of the driver, using the relationship between the vehicle operation information and the vehicle behavior information;
A first communication step of transmitting the index value to a wireless communication terminal provided outside the vehicle;
Is a control program for in-vehicle devices. An information acquisition step of obtaining vehicle acquisition information including vehicle operation information representing vehicle operation by the driver and vehicle behavior information representing the behavior of the vehicle;
With reference to storage means that associates and stores the relationship between the vehicle operation information and the vehicle behavior information and an index value that is an index for evaluating the driver's driving, the vehicle operation information and the vehicle behavior information An index value generating step for generating the index value using the relationship of
An index generation method for driving evaluation including

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