JP2014075035A - Operation support system and in-vehicle unit to be used for the same system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation support system capable of collecting information not only at the occurrence of an accident but also for the purpose of a safety operation instruction, and reducing the labor of a manager side.SOLUTION: An in-vehicle unit performs the buffering of the acceleration and speed of a vehicle and the peripheral video of a vehicle (S100), and acquires the acceleration (S110), and determines whether or not the acceleration is in a notification level (S120), and when the acceleration is in the notification level (S120: YES), performs notification processing (S130). That is, in the in-vehicle unit, acquisition means acquires the acceleration of the vehicle, and when the acceleration acquired by the acquisition means exceeds a notification threshold set as the notification level, transmission means transmits vehicle behavior information to the outside.

Description

  The present invention relates to a technique for acquiring vehicle behavior and transmitting it to a management side in real time as necessary.

  Conventionally, there is a technique for collecting vehicle accident information. For example, an apparatus that detects the occurrence of an accident in a vehicle with an impact detection sensor and records a peripheral image several tens of seconds before the occurrence of the accident is known.

In the collection of information by such a device, an image from the camera of the accident vehicle equipped with the device is used, so that a sufficient image for investigating the cause of the accident is not always obtained.
Thus, in recent years, a technique has been proposed in which information such as images collected by an accident vehicle is notified to the surrounding vehicles and information collection such as images is also requested from the surrounding vehicles (for example, see Patent Document 1).

JP 2008-217218 A

  However, the technique described in Patent Document 1 relates to the occurrence of a vehicle accident. However, apart from the purpose of investigating the cause of an accident at the time of the accident, vehicle behavior information based on the vehicle behavior is used for purposes such as safe driving guidance. It is also important to collect. For example, in a management office such as a transportation company or a bus transportation station, the manager side collects vehicle behavior information in order to evaluate the appropriateness of the driving operation of each driver.

  At this time, a mode is also conceivable in which vehicle behavior information is transmitted one by one by radio communication to a management terminal installed in the office regardless of the occurrence of an accident. However, in the aspect in which the vehicle behavior information is transmitted one by one, when the vehicle behavior information is processed on the manager side in real time, there is a possibility that the burden on the manager side becomes excessive.

  The present invention has been made to solve the above-described problems, and its purpose is to collect information not only for the time of an accident but also for the purpose of safe driving guidance and to reduce the burden on the administrator side. The object is to provide a driving support system capable of doing this.

  The driving support system (1) made to achieve the above object includes an in-vehicle device (10) and a management terminal (20). The in-vehicle device is mounted on the vehicle and transmits vehicle behavior information that is information based on the vehicle behavior associated with the driving operation of the vehicle by the driver. The management terminal performs notification based on the vehicle behavior information.

  The vehicle behavior information is information based on the vehicle behavior, and is embodied as, for example, acceleration or speed. For example, it is embodied as an image around the vehicle. In other words, it may be information regarding the behavior of the vehicle, and may be the current position of the vehicle. Moreover, the fact that the acceleration of the vehicle exceeded a threshold value described later is also included in the vehicle behavior information.

  Here, in particular, in the vehicle-mounted device, when the acquisition unit (15a) acquires the acceleration of the vehicle, and the acceleration acquired by the acquisition unit exceeds the notification threshold set as the notification level by the transmission unit (15b), the vehicle behavior. Information is sent to the outside.

  Note that “sent to the outside” includes not only direct transmission to the management terminal but also transmission to the center server and transmission from the center server to the management terminal.

  That is, in the present invention, it is possible to detect an impact (acceleration) smaller than that at the time of the vehicle accident by using the acceleration of the vehicle, and when this acceleration exceeds the notification threshold, the vehicle behavior information is transmitted to the outside. Therefore, information for the purpose of safe driving guidance can be collected by appropriately setting the notification threshold. In addition, the burden on the administrator side can be reduced.

  In addition, this invention can also be implement | achieved as invention of a vehicle equipment. That is, it is an in-vehicle device (10) that is mounted on a vehicle and can transmit vehicle behavior information that is information based on vehicle behavior accompanying a driving operation of the vehicle by a driver, and a management terminal (20) that performs notification based on the vehicle behavior information ) And a transmission unit (15b) for transmitting vehicle behavior information to the outside when the acceleration acquired by the acquisition unit exceeds a notification threshold set as a notification level. ).

It is a block diagram which shows schematic structure of a driving assistance system. It is explanatory drawing which illustrates the diagnostic item of a driving | operation diagnostic function. It is a flowchart which shows the notification process in a vehicle equipment. It is a flowchart which shows the center process in a center server. It is a flowchart which shows the management terminal process in a management terminal. It is a flowchart which shows the image transmission process in a vehicle equipment. It is a flowchart which shows the threshold value setting process in a vehicle equipment. It is explanatory drawing which illustrates each threshold value. It is explanatory drawing which illustrates the screen of the WEB application in a management terminal.

Below, driving support system 1 as an embodiment of the present invention is explained with a drawing.
The driving support system 1 is a system capable of managing the driving contents of the driver. As shown in FIG. 1, the driving support system 1 is operated by an in-vehicle device 10 mounted on a vehicle such as a truck or a bus, and a transportation company or a bus transportation station. And a center server 30 as a relay device capable of communicating with the in-vehicle device 10 and the management terminal 20.

  The in-vehicle device 10 performs a driving diagnosis function for performing various diagnoses regarding the driver's driving contents based on detection results by various sensors mounted on the vehicle, and an accident avoidance behavior such as a vehicle causing a traffic accident or sudden braking. It has a drive recorder function for recording an image or the like for showing an event that has become the origin of these traffic accidents and accident avoidance behaviors.

Specifically, the in-vehicle device 10 includes an in-vehicle device body 10 a, a GPS antenna 11, a communication module 12, and a camera 13.
The GPS antenna 11 receives a radio wave (GPS signal) from an artificial satellite for GPS (Global Positioning System) in order to detect the current position of the vehicle.

The communication module 12 is for performing wireless communication with the management terminal 20 and the center server 30 connected to the Internet network.
The camera 13 is provided to realize, for example, a drive recorder function, and is configured to capture surrounding images including the front of the vehicle. In the present embodiment, the configuration includes two cameras 13. Of course, the number of cameras 13 is not limited.

  The in-vehicle device body 10a includes various sensors / switches 14 (for example, a vehicle speed sensor, an accelerator opening sensor, a brake depression amount) for detecting the driving state of the vehicle in addition to the GPS antenna 11, the communication module 12, and the camera 13. Sensor, steering angle sensor, turn signal switch, ignition switch, shift lever position sensor, engine speed sensor, gyro sensor, acceleration sensor, geomagnetic sensor, etc.) and in-vehicle speaker 17a.

  The in-vehicle device main body 10a receives the vehicle speed, the accelerator operation amount, the brake operation amount, the handle operation amount, the turn signal switch on (left / right) / off state, the ignition switch on / off state from various sensors / switches 14 and the like. It is possible to complement the detection values necessary to realize driving diagnosis functions such as the off state, shift lever position, engine speed, and the detection accuracy of the current position of the vehicle such as the angular velocity, acceleration, and azimuth angle from the geomagnetism. Enter the detected value.

  Specifically, in the in-vehicle device body 10a, the control unit 15 that executes various processes for realizing the driving diagnosis function and the drive recorder function, the map storage unit 16 that stores the map data, and the control unit 15 display various types. For example, a display unit 17b for performing various operations, an operation unit 18 for a user to perform various operations, and a memory slot 19 to which a portable recording medium such as a memory card or a USB memory can be connected.

  The map storage unit 16 is constituted by, for example, a hard disk device or a DVD device, and stores map data. In the map data, the control unit 15 specifies information (hereinafter, “road type”) for specifying the current position of the vehicle and for specifying a road type (for example, a general road, an expressway, an intersection, etc.) corresponding to the current position of the vehicle. Information)).

The operation unit 18 includes, for example, various switches and is used to perform various settings related to the operation diagnosis function and the drive recorder function.
The control unit 15 is configured around a well-known microcomputer having a CPU, ROM, RAM, I / O, etc., and the CPU uses the RAM as a work area based on a program stored in the ROM, and an operation diagnosis function And various processes for realizing the drive recorder function.

  Next, the driving diagnosis function of the control unit 15 will be described. This function diagnoses the operation details set by the operation unit 18 based on data generated by input values from various sensors / switches 14 (hereinafter referred to as “detection data”). The diagnosis result is recorded on a portable recording medium connected to the memory slot 19. In addition, the driver is notified through the in-vehicle speaker 17a and the display unit 17b. This encourages the driver to drive safely and save fuel.

  In this driving diagnosis, the number of times the driving content of the driver deviates from at least one of safe driving and fuel-efficient driving is measured as the number of violations. In addition, the driving | running | working content by a driver includes the content which considered the physical condition of the driver | operator, such as whether the driver | operator is driving after taking the required rest besides the driving operation by a driver.

  As shown in FIG. 2, the diagnosis items are divided into items such as a rapid acceleration diagnosis, a sudden deceleration diagnosis, a sudden turn diagnosis, a continuous operation time diagnosis, an intersection diagnosis, an engine rotation diagnosis, an idling diagnosis, and a legal speed diagnosis. .

  Whether the accelerator operation is not suddenly performed in the sudden acceleration diagnosis, the brake operation is not suddenly performed in the sudden deceleration diagnosis, the steering wheel operation is not suddenly performed in the sudden turn diagnosis, or the continuous operation time diagnosis has enough break If the vehicle is not running continuously, the intersection diagnosis is sufficiently slow in the intersection (and the blinker is turned on when entering the intersection), the engine rotation diagnosis is not overworking the engine, or the idling diagnosis is idling Whether the time is not long or the legal speed diagnosis diagnoses whether the vehicle speed does not exceed the legal speed.

The detection data includes detection values such as the speed of the vehicle (vehicle speed), acceleration, and the state of the winker operation.
Therefore, in the driving diagnosis process, for example, based on the detected value itself and the road type information read from the map storage unit 16, the number of violations is displayed when the vehicle speed indicates a driving state exceeding the legal speed corresponding to the traveling road at the current position. The number of violations is counted when the vehicle speed is higher than a predetermined slowing speed when entering an intersection (when turning left or right) or when the blinker operation is not performed properly.

  The acceleration is used to increase the detection accuracy of the current position of the vehicle. Further, it is used for recording images taken by the camera 13 before and after the detection of a predetermined impact acceleration or more in the drive recorder function.

  Furthermore, the detection data includes a differential value indicating a quantitative change in a detected value indicating a driving operation such as an accelerator operation, a brake operation, and a steering wheel operation by the driver, or a specific driving state such as a continuous running state and an idling state of the vehicle. The duration of the is included.

  Therefore, in the driving diagnosis process, when the difference value exceeds a predetermined threshold, the number of violations is counted when the driving operation amount shows a sudden change, or the duration exceeds a predetermined threshold time, Count the number of violations when a specific driving state continues for a long time.

The continuous running state is determined from the on / off state of the ignition switch, and the idling state is determined from the vehicle speed, the engine speed, and the like, and the duration is measured by a timer.
The driving diagnosis function records at least the counted number of violations on a portable recording medium connected to the memory slot 19 for each diagnosis item.

  Returning to FIG. 1, the management terminal 20 includes a control unit 21 and a memory slot 22. Of course, it also has a display unit as a terminal. The control unit 21 is a so-called computer, and the memory slot 22 is the same as the memory slot 19 of the in-vehicle device body 10a.

Further, the center server 30 has a control unit 31. The control unit 31 is a so-called computer, and relays a notification from the in-vehicle device 10 to the management terminal 20.
This embodiment is particularly characterized by the drive recorder function. Therefore, the notification process in the drive recorder function will be described based on the flowchart of FIG. The notification process is repeatedly executed by the control unit 15 of the in-vehicle device main body 10a when driving the vehicle.

  In the first S100, buffering is performed. This process temporarily stores the surrounding image of the vehicle imaged by the camera 13. Here, it is assumed that the video for the past several tens of seconds is recorded. Moreover, the transition of acceleration and speed as vehicle behavior is temporarily stored.

  In subsequent S110, acceleration is acquired. As described above, the acceleration is included in the detection data. The detection data is data generated by input values from various sensors and switches 14.

  In next S120, it is determined whether or not the notification level is set. In this embodiment, an impact is detected by acceleration, but four threshold values are set in advance in order to determine the impact applied to the vehicle in stages. Specifically, as shown in FIG. 8, “notification level” → “image recording level” → “recording level” → “alarm level” in the descending order of impact. If it is determined that the notification level is reached (S120: YES), the notification process is performed in S130, and then the process proceeds to S140. On the other hand, when it is determined that the notification level is not reached (S120: NO), the process of S130 is not executed and the process proceeds to S140.

  The notification process in S130 is to notify the center server 30 and transmits the acceleration and speed transition to the center server 30 as vehicle behavior information. The transition of acceleration and speed is buffered in S100.

  In S130, the current position of the vehicle is acquired and the current position information is transmitted. In this process, the current position is acquired and transmitted based on the signal from the GPS antenna 11. This current position is supplemented by detection values from the sensors and switches 14 such as the angular velocity, acceleration, and azimuth angle from the geomagnetism.

  In S140, it is determined whether the image recording level is reached. If it is determined that the image recording level is reached (S140: YES), an image is recorded in S150, and then the process proceeds to S160. On the other hand, when it is determined that the image recording level is not reached (S140: NO), the process of S150 is not executed, and the process proceeds to S160.

  In S150, an image is recorded on a portable recording medium inserted into the memory slot 19 of the in-vehicle device main body 10a. Here, the image before reaching the image recording level, the image at the moment of reaching, and the image after reaching the image recording level are recorded. For example, an image 10 seconds before arrival, an image 10 seconds after arrival, and so on. Here, since the image after 10 seconds has not yet arrived, more specifically, when an affirmative determination is made in S140, a flag or the like is set, and then the image after 10 seconds is recorded based on the flag. Condition.

  In S160, it is determined whether or not the recording level is reached. If it is determined that it is the recording level (S160: YES), the acceleration and speed transitions are recorded in the portable recording medium in S170, and then the process proceeds to S180. On the other hand, when it is determined that the recording level is not reached (S160: NO), the process of S170 is not executed and the process proceeds to S180.

  In S180, it is determined whether or not the alarm level is reached. If it is determined that the alarm level is reached (S180: YES), an alarm process is performed in S190, and then the notification process is terminated. On the other hand, when it is determined that the alarm level is not reached (S180: NO), the process of S190 is not executed and the notification process is terminated.

  In the alarm processing in S190, the driver is notified that the acceleration is temporarily increased via the in-vehicle speaker 17a and the display unit 17b, separately from the driving diagnosis described above. This prompts the driver to drive safely.

  As described above, in S130, the center server 30 is notified. Next, center processing of the center server 30 will be described based on the flowchart of FIG. This center processing is repeatedly executed by the control unit 31 of the center server 30.

  In first S200, it is determined whether or not there is a notification from the in-vehicle device 10. This process corresponds to S130 in FIG. If it is determined that there is a notification (S200: YES), the process proceeds to S210. On the other hand, when it is determined that there is no notification (S200: NO), the processing of S210 and S220 is not executed, and the center processing is terminated.

  In S210, an automatic mail is transmitted. This process informs the administrator that an acceleration exceeding the notification level has been detected, and automatically sends an e-mail to the management terminal 20.

  In subsequent S220, notification is performed via the WEB application. The WEB application is an application program that is activated on the management terminal 20 and is for confirming the behavior of the vehicle. After the process of S220 ends, the center process ends.

  In the present embodiment, a notification is once sent from the in-vehicle device 10 to the center server 30 in this way, and is notified from the center server 30 to the management terminal 20. Then, the management terminal process in the management terminal 20 is demonstrated based on the flowchart of FIG. The management terminal process is repeatedly executed by the control unit 21 of the management terminal 20.

  In the first S300, it is determined whether or not there is an automatic mail. This process corresponds to S210 in FIG. If it is determined that there is an automatic mail (S300: YES), the process proceeds to S310. On the other hand, when it is determined that there is no automatic mail (S300: NO), the process of S310 and S320 is not executed, and the process proceeds to S330.

  In S310, a pop-up display is performed. In this process, a notification from the center server 30 is displayed in a pop-up on the display screen of the management terminal 20. This pop-up display displays a pop-up screen on the screen of the WEB application when the WEB application is activated. This is a notification when the administrator is in front of the PC and is operating the WEB application.

  If there is an automatic mail, in addition to the above pop-up method, it is possible to set the destination of the automatic mail to a mail address designated in advance. This e-mail address is, for example, that of a PC or portable terminal. At this time, it may be possible to describe the URL to the WEB application in the mail text. Thus, the administrator can start the WEB application by clicking the URL.

  In S320, a graph is displayed on condition that the WEB application is activated. This graph display is a graph display of acceleration and speed as the behavior of the vehicle. FIG. 9 illustrates the screen of the WEB application. As shown by the symbol C in FIG. 9, the acceleration (shown by a broken line) and the speed (shown by a thick solid line) are displayed. Further, since the current position of the vehicle is transmitted from the vehicle-mounted device 10, a map image that can identify the current position of the vehicle is displayed on the screen of the WEB application. This is as indicated by symbol B in FIG. After the process of S320 is completed, the process proceeds to S330.

  In S330, it is determined whether or not there is an image request. This process determines whether or not there is a request for image transmission from the administrator to the in-vehicle device 10. For example, an image acquisition button as indicated by symbol E is displayed on the WEB application screen shown in FIG. 9, and it is determined whether or not this is selected with a pointing device such as a mouse. If it is determined that there is an image request (S330: YES), the image request is transmitted to the in-vehicle device 10 in S340, and then the process proceeds to S350. On the other hand, when it is determined that there is no image request (S330: NO), the process of S340 is not executed and the process proceeds to S350.

  In S350, it is determined whether or not a message has been transmitted. This process determines whether or not a message has been transmitted from the administrator to the in-vehicle device 10. For example, a message transmission button as indicated by symbol D is displayed on the WEB application screen shown in FIG. 9, and it is determined whether or not this is selected with a pointing device such as a mouse. If it is determined that a message has been transmitted (S350: YES), the message is transmitted to the vehicle-mounted device 10 in S360, and then the process proceeds to S350. On the other hand, when it is determined that there is no message transmission (S350: NO), the process of S360 is not executed and the process proceeds to S370. The message transmission in S360 may be, for example, a fixed message or an arbitrary message input from a keyboard or the like.

  In S370, it is determined whether an image has been received. This process determines whether an image transmitted from the in-vehicle device 10 is received in response to the image request in S340. If it is determined that an image has been received (S370: YES), the image is displayed in S380, and then the management terminal process is terminated. On the other hand, if it is determined that an image has not been received (S370: NO), the process of S380 is not executed and the management terminal process is terminated.

  In the image display in S380, on the assumption that the in-vehicle device 10 transmits the shock detection moment and the three images before and after, as described later, these three images are displayed on the screen of the WEB application. It is as shown by symbol A in FIG.

  Next, the image transmission processing in the vehicle-mounted device 10 when image transmission is requested in S340 will be described based on the flowchart of FIG. The image transmission process is repeatedly executed by the control unit 15 of the in-vehicle device body 10a.

  In the first S400, it is determined whether or not an image request has been made. This process corresponds to S340 in FIG. 5, and an affirmative determination is made when there is an image request from the management terminal 20. If it is determined that there is an image request (S400: YES), the process proceeds to S410. On the other hand, when it is determined that there is no image request (S400: NO), the subsequent processing is not executed and the image transmission processing is terminated.

  In S410, an image is extracted. The image clipping is started from the time when the notification process is performed in S130 in FIG. 3, and is stored in the portable recording medium. Therefore, here, the image stored in the portable recording medium is retrieved and retrieved. Specifically, a total of three images including an image at the time when notification is required and images before and after the image (images 10 seconds before and 10 seconds after) are extracted.

  In subsequent S420, the image is transmitted. In this process, the three images extracted in S410 are transmitted to the management terminal 20. After the process of S420 ends, the image transmission process ends.

  As described above in detail, in the present embodiment, the in-vehicle device 10 buffers the acceleration and speed of the vehicle and the surrounding image of the vehicle (S100 in FIG. 3), and acquires the acceleration (S110). Then, it is determined whether or not it is a notification level (S120). If it is a notification level (S120: YES), a notification process is performed (S130). In other words, in the in-vehicle device 10, when the acquisition unit 15a acquires the acceleration of the vehicle and the acceleration acquired by the acquisition unit 15a exceeds the notification threshold set as the notification level by the transmission unit 15b, the vehicle behavior information is transmitted to the outside. Sent. At this time, if there is a notification (S200: YES in FIG. 4), the center server 30 transmits an automatic mail (S210) and performs a notification via the WEB application (S220). On the other hand, when the management terminal 20 receives the automatic mail (S300: YES), the management terminal 20 performs a pop-up display (S310), and when the WEB application is activated, the vehicle acceleration and speed transitions are displayed in a graph (S320). . In this way, information for the purpose of safe driving guidance can be collected by appropriately setting the notification level. In addition, the burden on the administrator side can be reduced.

  In the present embodiment, in the notification process, the center server 30 is notified (S130 in FIG. 3). At this time, acceleration and speed transitions are transmitted to the center server 30 as vehicle behavior information. In addition, the current vehicle position is transmitted as vehicle behavior information. That is, the transmission unit 15b transmits at least information on acceleration and speed of the vehicle as vehicle behavior information. Thereby, the minimum behavior of the vehicle can be grasped by the management terminal 20.

  Furthermore, in the present embodiment, the in-vehicle device 10 has the camera 13, and temporarily stores the surrounding image of the vehicle imaged by the camera 13 (S100 in FIG. 3). The image is cut out at the time (S130), and when there is an image request from the management terminal 20 (S400: YES in FIG. 6), the image is transmitted (S420). That is, the in-vehicle device 10 has a camera 13 for capturing a vehicle surrounding image as vehicle behavior information, and the transmission unit 15b receives the vehicle surrounding image from the management terminal 20 when the vehicle surrounding image is requested. The captured vehicle periphery image is transmitted. As described above, since the in-vehicle device 10 transmits an image in response to a request from the management terminal 20, it is possible to reduce the burden on the administrator side, unlike an aspect in which vehicle periphery images are transmitted one by one.

  At this time, the in-vehicle device 10 extracts and transmits the image from the image recorded on the portable recording medium (S410 and S420 in FIG. 6). Specifically, a total of three images are cut out: an image at the time when notification is required, and images 10 seconds before and 10 seconds after that. That is, the transmission unit 15b transmits a still image based on the timing at which the acceleration exceeds the notification threshold as the vehicle peripheral image. As a result, the amount of data can be reduced compared to a configuration for transmitting moving images. Further, since the image is based on the timing exceeding the notification threshold, there is a high possibility that it will be useful information.

  In the present embodiment, it is determined whether or not the vehicle acceleration is at the image recording level (see S140 in FIG. 3 and FIG. 8). If the vehicle acceleration is at the image recording level (S140: YES), the portable type is used. An image is recorded on the recording medium (S150). Further, it is determined whether or not the vehicle acceleration is at the recording level (S160, see FIG. 8). If the vehicle acceleration is at the recording level (S160: YES), the change in the acceleration and speed of the vehicle is recorded on the portable recording medium. Record (S170). That is, on-vehicle device 10 assumes that a lower threshold value (here, “image recording level” and “recording level”) that is lower than the notification threshold value is set, and if the acceleration exceeds the lower threshold value, vehicle behavior Recording means 15c for recording predetermined information among the information is provided. As a result, vehicle behavior information that is not notified is appropriately recorded, and information collection for the purpose of safe driving guidance can be performed.

  Furthermore, in this embodiment, it is determined whether or not the vehicle acceleration is at the alarm level (see S180 in FIG. 3 and FIG. 8). If the vehicle acceleration is at the alarm level (S180: YES), the alarm process is performed. Do. That is, the vehicle-mounted device 10 is a warning that warns based on the vehicle behavior information when the acceleration exceeds the lowest threshold on the assumption that the lowest threshold (here, “alarm level”) that is lower than the lower threshold is set. Means 15d are provided. Thereby, further safe driving can be achieved.

The present invention is not limited to the embodiment described above, and can be implemented in various forms without departing from the technical scope thereof.
(A) In the above embodiment, various processes are performed based on four preset threshold values (see S120 to S190 in FIG. 3 and FIG. 8). Such threshold values are not limited to four, and the processing may be divided by threshold values of 1 to 3, or 5 or more.

  (B) It is also conceivable to change the setting of the threshold value itself. For example, as shown in FIG. 7, it is determined whether or not a predetermined condition is satisfied (S500). If the predetermined condition is satisfied (S500: YES), a threshold value is acquired (S510), and the threshold value is changed. (S520). In this case, it is conceivable that the threshold for changing the setting is recorded in a portable recording medium inserted into the memory slot 19 of the in-vehicle device main body 10a.

  As the predetermined condition, for example, when the vehicle is a truck of a transportation company, it is conceivable that the vehicle is in a loaded state (or not). That is, the in-vehicle device 10 may change the setting to the corresponding threshold value based on whether or not the vehicle is in a loaded state.

  In addition, it is conceivable that a specific area on the map is registered in advance as a sign post and that there is a vehicle in the sign post. That is, the in-vehicle device 10 may change the setting to the corresponding threshold value based on whether or not the vehicle is in the specific area.

  For example, the sign post may be designated as an area having a predetermined radius centered on a certain point. It is conceivable that the information of the sign post is recorded on a portable recording medium inserted into the memory slot 19 in the same manner as the threshold value.

  Thus, if the threshold value is set and changed in accordance with the predetermined condition, the effect that information can be collected for the purpose of safe driving guidance and the effect that the burden on the manager can be reduced stand out.

  (C) In the above embodiment, the time when the threshold is exceeded and three still images 10 seconds before and 10 seconds after that are transmitted or recorded, but one or two still images or four or more still images are transmitted. May be transmitted. Also, a moving image may be transmitted.

  DESCRIPTION OF SYMBOLS 1 ... Driving support system, 10 ... In-vehicle apparatus, 10a ... In-vehicle apparatus main body, 11 ... GPS antenna, 12 ... Communication module, 13 ... Camera, 14 ... Sensor switch, 15 ... Control part, 15a ... Acquisition means, 15b ... Transmitting means, 15c ... recording means, 15d ... warning means, 16 ... map storage section, 17a ... in-vehicle speaker, 17b ... display section, 18 ... operation section, 19 ... memory slot, 20 ... management terminal, 21 ... control section, 22 ... Memory slot, 30 ... Center server, 31 ... Control unit

Claims (9)

An in-vehicle device (10) that is mounted on a vehicle and that can transmit vehicle behavior information that is information based on vehicle behavior associated with the driving operation of the vehicle by a driver, and a management terminal (20) that performs notification based on the vehicle behavior information. A driving support system (1) comprising:
The in-vehicle device is
Acquisition means (15a) for acquiring acceleration of the vehicle;
And a transmission means (15b) for transmitting the vehicle behavior information to the outside when the acceleration acquired by the acquisition means exceeds a notification threshold set as a notification level. . The driving support system according to claim 1,
The transmission means transmits at least information on acceleration and speed of the vehicle as the vehicle behavior information. In the driving support system according to claim 1 or 2,
The in-vehicle device has a camera (13) for capturing a vehicle periphery image as the vehicle behavior information,
The transmission means transmits the vehicle peripheral image captured by the camera when the vehicle peripheral image is requested from the management terminal. In the driving assistance system according to claim 3,
The driving means transmits a still image based on a timing at which the acceleration exceeds the notification threshold as the vehicle surrounding image. In the driving support system according to any one of claims 1 to 4,
On the premise that a lower threshold value lower than the notification threshold value is set, the in-vehicle device has a recording means (15c) for recording predetermined information of the vehicle behavior information when the acceleration exceeds the lower threshold value. A driving support system characterized in that it has. The driving support system according to claim 5,
The in-vehicle device has a warning means (15d) for performing a warning based on the vehicle behavior information when the acceleration exceeds the lowest threshold, on the premise that a lowest threshold lower than the lower threshold is set. A driving assistance system characterized by In the driving support system according to any one of claims 1 to 6,
The on-vehicle device changes the setting to a corresponding threshold value based on whether or not the vehicle is in a loaded state. In the driving support system according to any one of claims 1 to 7,
The on-board device changes the setting to a corresponding threshold value based on whether or not the vehicle is in a specific area. An in-vehicle device (10) mounted on a vehicle and capable of transmitting vehicle behavior information that is information based on vehicle behavior associated with a driving operation of a vehicle by a driver,
Used together with a management terminal (20) for performing notification based on the vehicle behavior information,
Acquisition means (15a) for acquiring acceleration of the vehicle;
An in-vehicle device comprising: a transmission unit (15b) configured to transmit the vehicle behavior information to the outside when an acceleration acquired by the acquisition unit exceeds a notification threshold set as a notification level.

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