JP6148441B2 - Driving support information management device - Google Patents

Description

  The present invention relates to an apparatus for managing driving support information that supports a driver of a vehicle.

  Conventionally, when an impact is applied to a vehicle, a drive recorder has been proposed and practically used to record various information related to vehicle travel such as the position of the vehicle, video around the vehicle, sound, and travel speed. It is offered to. By using the drive recorder, for example, when the vehicle has a collision accident, information before and after the collision is recorded and saved, which can be used for analysis of the cause of the accident.

  The drive recorder is also used as a driving support device that supports the driving of the driver. In that case, a database (hazard map data) of danger points (nearly hat points) obtained by analyzing the record information of the drive recorder, such as the point where the vehicle suddenly braked, is mounted on the drive recorder. A warning is output from the drive recorder to the driver when the vehicle passes through the dangerous part.

  The hazard map data described above may be created independently by each drive recorder, but from the viewpoint of increasing the amount of information, it may be created centrally by an analysis device that analyzes the recording information of the drive recorder. There is (for example, Patent Document 1).

JP 2011-242190 A

  Patent Document 1 described above discloses that the transfer of recorded information and hazard map data is performed by online communication through a network, but such an infrastructure is not always provided. Therefore, it is also greatly performed to deliver off-line using a portable recording medium (memory card). In that case, it is reasonable to use a memory card also for transferring dangerous points and hazard map data based on them to the drive recorder.

  In this case, the main purpose of use of the memory card is to transfer the recording information collected by the drive recorder to the analysis device, so that hazard map data having a capacity that interrupts the necessary storage capacity is stored in the memory card. Don't go to On the other hand, as the content of hazard map data is enriched, the amount of data naturally increases. Therefore, in this state, the advantage of creating hazard map data in an integrated manner by the analysis device cannot be fully utilized.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide driving support information (hazard map data) with a rich content to a driving support device (drive recorder) via a memory card in a compact data amount. It is to provide a driving support information management device that can be supplied.

In order to achieve the above object, the driving support information management device of the present invention described in claim 1
Read the operation status record information from the memory card loaded in the reader / writer, and from the read operation status record information , identify the dangerous point on the vehicle running while the memory card is still loaded in the reader / writer. and the danger point specifying means for specific,
Updating means for updating the hazard map data indicating the dangerous point on the vehicle traveling stored in the hard disk based on the identified dangerous point on the vehicle traveling;
The vehicle in which the data of the updated hazard map were identified from the identifier stored in it the memory card while mounted to the reader-writer is loaded before Symbol writer for reading recorded information of the operation information Extracting means for extracting the dangerous point existing on the operation route in comparison with the operation route;
The extracted dangerous point data is loaded into the reader / writer as driving support information used to warn the driver when the vehicle is identified from the identifier stored in the memory card loaded in the reader / writer. and recording means for storing in the storage area of the hazard map data of the memory card until retrieved from memory card Doga該writer,
It is characterized by providing.

  According to the driving support information management device of the present invention described in claim 1, the memory card in which the record information of the operation status collected in the vehicle is written is used to warn the driver of the dangerous point when the vehicle is traveling. Danger point data is stored as driving support information. And the data of the dangerous point memorize | stored are restricted only to the dangerous point which exists on the driving | running route of the vehicle.

  Therefore, it is possible to reduce the amount of driving support information stored in the memory card by the amount of dangerous point data that does not exist on the driving route of the vehicle. Via the vehicle side.

Further, the driving support information management apparatus of the present invention as set forth in claim 1, before Symbol extraction means, the service route of the vehicle identified from the previous SL identifier stored in the memory card loaded in the reader-writer, It is collated with the updated hazard map data .

A drive assist information managing apparatus of the present invention as set forth in claim 1, the path identifier is if it is stored in a memory card, which identifies the service route of the vehicle from its identifier, the vehicle is traveling The upper danger point can be easily extracted.

  ADVANTAGE OF THE INVENTION According to this invention, the driving assistance information with which the content was enriched can be supplied to the vehicle side via a memory card with a compact data amount.

1 is a schematic configuration diagram of a drive recorder system according to an embodiment of the present invention. FIG. 2 is a block diagram showing an electrical configuration of the drive recorder shown in FIG. 1. It is a flowchart which shows the procedure of the process performed with respect to the memory card loaded in the reader / writer which CPU of the personal computer of the drive recorder analysis unit shown in FIG. 1 performs according to the program stored in ROM.

  Embodiments of a driving support information management apparatus according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of a drive recorder system according to an embodiment of the present invention. The drive recorder system shown in FIG. 1 has a drive recorder analysis unit 1 and a drive recorder 3.

  The drive recorder analysis unit 1 is installed in a sales office or the like that manages a vehicle (not shown) on which the drive recorder 3 is mounted. The drive recorder analysis unit 1 includes a personal computer (corresponding to a driving support information management device in claims), a printer 15 connected to the personal computer 10, and a personal computer having a keyboard 11 and a display 13. A reader / writer 17.

  The personal computer 10 has a CPU, a RAM, a ROM, a hard disk, etc. (all not shown), and the hard disk is a program for analyzing the record information of the vehicle operation status collected by the drive recorder 3. Is installed.

  This analysis program is software for playing back and analyzing on the personal computer 10 images captured by cameras 35a to 35n (to be described later) of the drive recorder 3 and recorded on a memory card (portable memory card) C.

  The analysis program includes a program for formatting the memory card C, and a program for setting the image quality when recording an image by the drive recorder 3 using the cameras 35a to 35n and writing it in a dedicated area of the memory card C. ing.

  Further, the analysis program includes a program for identifying a dangerous point on the road from recorded information collected in a vehicle (not shown) on which the drive recorder 3 is mounted and stored in the memory card C. The danger point is a so-called near-miss point, which is a point where the driver of the vehicle tends to take a risk avoiding action such as sudden braking or sudden steering.

  The printer 15 is used when printing out the settings made by the personal computer 10 and the contents of analysis. The reader / writer 17 writes and reads data to and from the memory card C inserted from the card slot 17a under the control of the CPU of the personal computer 10.

  The drive recorder 3 is attached to a windshield of a vehicle (not shown), for example. The main body of the drive recorder 3 incorporates a camera 35a and has external cameras 35b to 35n.

  As shown in the block diagram of FIG. 2, the drive recorder 3 includes a CPU 31, a ROM 32, a RAM 33, a memory 34, an interface (I / F) 35i of the cameras 35a to 35n, a data write to the memory card C, and a memory card C. A reader / writer 38 for reading and an interface unit 39 for external connection are provided. The interface unit 39 is connected to a vehicle speed sensor 41, a GPS (global positioning system) module 43, a speaker unit 45, and the like.

  The GPS module 43 is a module that detects the current position of a vehicle (not shown) on which the drive recorder 3 is mounted. The speaker unit 45 is a unit that outputs audio data generated by the CPU 31.

  The drive recorder 3 has acceleration sensors 37a to 37n corresponding to the cameras 35a to 35n, respectively. The acceleration sensor 37a corresponding to the camera 35a is built in the main body, and the other acceleration sensors 37b to 37n are respectively disposed at the installation locations of the corresponding external cameras 35b to 35n.

  The CPU 31 of the drive recorder 3 once records an image taken by the cameras 35a to 35n using a memory 34 composed of SRAM or the like according to a program stored in the ROM 32. Then, the data is downloaded and written from the card slot 38a (see FIG. 1) of the main body to the memory card C inserted into the reader / writer 38.

  There are two modes for recording images on the memory card C. One is a continuous recording mode, and instructions for starting and ending the operation of the vehicle are sent from the external device (not shown) to the CPU 31 through the interface unit 39 while the memory card C is loaded in the reader / writer 38. In this mode, an image is recorded for a long time with a relatively low image quality while being input.

  The other is a trigger recording mode, in which an acceleration sensor 37a to 37n detects an acceleration exceeding a certain value, a change in the vehicle speed input from the vehicle speed sensor 41 exceeding a certain speed, an unillustrated connected to the interface unit 39. In this mode, when an instruction to open / close the loading platform door or start work is input from an external device, a short time image is recorded with a relatively high image quality for a certain period of time before and after the trigger time.

  Based on the image quality setting information read by the reader / writer 38 from the dedicated area of the memory card C, the CPU 31 of the drive recorder 3 has images set by the cameras 35a to 35n in the constant recording mode and the trigger recording mode, respectively. Record on memory card C.

  The memory card C is provided with an identifier storage area and a hazard map data storage area, in addition to a dedicated area for storing operation status such as images as recording information. In the storage area of the identifier, ID information assigned to the memory card C in order to specify the vehicle or its driver whose recording information is collected by the drive recorder 3 is stored. The hazard map data storage area stores data indicating the dangerous point.

  Next, see the flowchart of FIG. 3 for the procedure of the process performed on the memory card C loaded in the reader / writer 17 that is executed by the CPU of the personal computer 10 of the drive recorder analysis unit 1 shown in FIG. 1 according to the ROM program. To explain.

  First, the CPU of the personal computer 10 reads recorded information from a dedicated area of the memory card C loaded in the reader / writer 17 (step S1), and a trigger (danger recorded at the point corresponding to the dangerous point in the read recorded information). ) It is confirmed whether or not data exists (step S3). If there is no trigger data (NO in step S3), the process proceeds to step S15 described later.

  On the other hand, if the trigger data exists (YES in step S3), it is confirmed whether or not the same point is registered in the dangerous point database stored in the hard disk (not shown) in the personal computer 10 (step S3). S5). If it is not registered (NO in step S5), it is registered in the database as a new danger point (step S7), and the process proceeds to step S15.

  Further, when the same point as the trigger data is registered in the database (YES in step S5), it is determined whether or not the number of occurrences of the trigger data (the number of times recorded in the record information as the dangerous point) exceeds the specified number. Confirm (step S9). If the specified number has not been exceeded (NO in step S9), the number of occurrences counted in the database is counted up (step S11), and then the process proceeds to step S15.

  On the other hand, if the number of occurrences of trigger data exceeds the specified number of times (YES in step S9), the risk level of the dangerous point specified in the database is increased by one level and the count value of the number of occurrences is reset (step S13), the process proceeds to step S15.

  In step S15, the hazard map data is updated in accordance with the contents of a hard disk database (not shown) changed by the procedure of steps S7 to S13. Subsequently, the identifier of the memory card C loaded in the reader / writer 17 is read (step S17), and operation plan data indicating the operation route of the vehicle with the read identifier (or the vehicle driven by the driver with the identifier) is not shown. Is extracted from the operation plan data registered in advance in the hard disk (step S19).

  Then, the operation route indicated by the extracted operation plan data is collated with the hazard map data of the hard disk (not shown) to extract a dangerous point existing on the operation route (step S21), and the extracted dangerous point is stored in the memory card C. Is written in the storage area of the hazard map data (step S23), the memory card C is taken out from the reader / writer 17 (step S25), and the series of processes is terminated.

  As is clear from the above description, in the present embodiment, step S21 in the flowchart of FIG. 3 is processing corresponding to the extraction means in the claims. In the present embodiment, step S23 in FIG. 3 is processing corresponding to the recording means in the claims.

  The memory card C in which the danger point existing on the operation route of the vehicle is written by the above-described procedure is then loaded into the reader / writer 38 from the card slot 38a of the drive recorder 3 of the corresponding vehicle. Then, the dangerous point is read from the memory card C under the control of the CPU 31 and temporarily stored in the RAM 33 or the memory 34.

  This dangerous point is always checked against the current position of the vehicle detected by the GPS module 43, and if both match and it is found that the vehicle has reached the dangerous point while traveling, it warns that it is a dangerous point. A voice message is output from the speaker unit 45 under the control of the CPU 31.

  As described above, according to the drive recorder system of the present embodiment, the data on the dangerous point necessary for alarming the driver of the driving at the dangerous point in the drive recorder 3 exists on the operation route of the vehicle. Only what is to be extracted is stored in the memory card C. For this reason, the amount of data stored in the memory card C can be greatly reduced as compared to the case where all the dangerous point databases constructed in the personal computer 10 of the drive recorder analysis unit 1 are recorded in the memory card C as hazard map data.

  Therefore, it is possible to prevent the storage area of the record information of the operation status collected by the drive recorder 3 that should be stored in the memory card C from being reduced by storing the hazard map data. On top of that, the latest hazard map data (driving support information), which is created based on the database of dangerous points built on the personal computer 10 of the drive recorder analysis unit 1, is provided only for the dangerous points required for each vehicle. It can be supplied to the vehicle side (the drive recorder 3) via the memory card C with a narrow and compact data amount.

  In the present embodiment, the identifier of the vehicle or its driver is recorded in the memory card C, and the operation route (operation plan data) of the vehicle corresponding to the identifier is extracted from the hard disk in the personal computer 10 and the hazard of the hard disk. It was set as the structure collated with map data. However, a configuration may be adopted in which an input for specifying a vehicle is performed on the personal computer 10 from, for example, the keyboard 11 and the operation route (operation plan data) of the vehicle is extracted from the hard disk.

  Moreover, in this embodiment, the case where the drive recorder 3 collects the record information of the operation status of the vehicle that is the basis for specifying the dangerous point has been described. However, the present invention can also be applied to a case where a dangerous point is specified from operation information collected in a digital tachograph (vehicle operation information collection device) that collects operation information (event data) that changes every moment of the vehicle.

  In that case, a dangerous point on the operation route of the vehicle is recorded on a memory card used for delivery of operation information between the digital tachograph and its analysis device (device corresponding to the drive recorder analysis unit 1 in this embodiment). do it.

  The present invention is a method for storing data on dangerous points in traveling of a vehicle as driving support information used for alarming a driver during traveling of a vehicle in a memory card used for delivery of record information of operation status collected by the vehicle. It is suitable for use.

1 drive recorder analysis unit 3 drive recorder 10 personal computer (driving support information management device, extraction means, storage means)
11 Keyboard 13 Display 15 Printer 17 Reader / Writer 17a Card Slot 31 CPU
32 ROM
33 RAM
34 Memory 35a to 35n Camera 37a to 37n Acceleration sensor 38 Reader / writer 38a Card slot 39 Interface unit 41 Vehicle speed sensor 43 GPS module 45 Speaker unit C Memory card

Claims (1)

In the driving support information management device that reads and analyzes the record information of the operation status collected by the vehicle and stored in the memory card,
Read the operation status record information from the memory card loaded in the reader / writer, and from the read operation status record information , identify the dangerous point on the vehicle running while the memory card is still loaded in the reader / writer. and the danger point specifying means for specific,
Updating means for updating the hazard map data indicating the dangerous point on the vehicle traveling stored in the hard disk based on the identified dangerous point on the vehicle traveling;
The vehicle in which the data of the updated hazard map were identified from the identifier stored in it the memory card while mounted to the reader-writer is loaded before Symbol writer for reading recorded information of the operation information Extracting means for extracting the dangerous point existing on the operation route in comparison with the operation route;
The extracted dangerous point data is loaded into the reader / writer as driving support information used to warn the driver when the vehicle is identified from the identifier stored in the memory card loaded in the reader / writer. and recording means for storing in the storage area of the hazard map data of the memory card until retrieved from memory card Doga該writer,
A driving support information management device comprising:

Images