JP2007141212A - Driving assisting method and driving assisting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driving assisting method and a driving assisting device for facilitating confirmation of analytic results and then contributing to safe driving of a driver. <P>SOLUTION: Offense data corresponding to mesh areas which are at the top 50 of mesh areas where offense data are frequently caused, and are at the periphery of each mesh area, are extracted as area extraction object data from a storage unit for a center, and candidate areas up to the 20th higher-rank area large in number among candidate areas are decided to be offense frequent occurrence areas, and displayed and expanded in an analytic picture. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a driving support method and a driving support device, and for example, relates to a technology that can implement driving guidance and driving support for a driver.

  Conventionally, for example, a taxi dispatch system that employs a 400 MHz band digital radio, expands the amount of data communication, and improves the collection accuracy of vehicle position information and dynamic information has been put to practical use. According to this taxi dispatch system, since the collection accuracy of vehicle position information and the like has been improved, the convenience of taxi users can be improved, and the work efficiency of dispatch staff and crew can be improved.

  By the way, the manager needs to instruct the driving of the crew or to improve the service for taxi users (see, for example, Patent Documents 1 to 3). Patent Document 1 discloses a traffic accident record video analysis system capable of analyzing vehicle movement amount information with high accuracy based on a distortion correction image. In Patent Document 2, a start point and an end point of data to be analyzed are set, a distance from the start point to the end point is calculated from recorded time-series speed data, and a speed corresponding to the calculated distance is displayed in a graph An operation record analyzer is disclosed. Patent Document 3 discloses a navigation device that reproduces images captured in the past corresponding to the current position of a running vehicle.

JP 2004-102426 A JP 7-333011 A Japanese Patent No. 3285597

  In Patent Documents 1 and 2, the situation before and after the event is not specified, and the relationship between the captured images before and after the event and the position information is unknown. Therefore, the recording amount of information that is not necessary to be analyzed becomes enormous, and it becomes impossible to secure a free recording capacity. In Patent Document 3, an image can be reproduced and displayed corresponding to the current position of the vehicle, but there is a problem that analysis at the time of event occurrence cannot be performed.

  An object of the present invention is to provide a driving support method and a driving support device that can easily confirm an analysis result and thereby contribute to a driver's safe driving.

The present invention (1) is a driving assistance method for analyzing driving performance by reading driving information about a vehicle from a recording medium.
The driving support method is characterized in that an area with a large number of violations is extracted and displayed as a frequent violation area based on the dangerous driving information in the driving information read from the recording medium.

Further, the present invention (2) is a driving support method for reading driving information relating to a vehicle from a recording medium and analyzing driving performance,
The driving support method is characterized in that an area with a large number of actual vehicles is extracted and displayed based on driving information read from the recording medium.

  Further, the present invention (3) is characterized in that the operation information is displayed in a limited time zone.

  Further, the present invention (4) is characterized in that the order of the frequent violation areas and the number of violations are displayed together.

  Further, the present invention (5) is characterized in that the violation items most frequently generated in the frequent violation areas and the violation occurrence rate are displayed together.

Further, the present invention (6) is a driving support device for reading driving information about a vehicle from a recording medium and analyzing driving performance.
Based on the dangerous driving information of the driving information read from the recording medium, means for extracting an area with a large number of violations as a violation frequent occurrence area,
Means for displaying the extracted frequent occurrence areas of violation on a map of a display unit.

Further, the present invention (7) is a driving support device that reads driving information about a vehicle from a recording medium and analyzes driving performance.
Based on the driving information read from the recording medium, means for extracting an area with a large number of actual vehicles,
Means for displaying the extracted area on a map of a display unit.

  According to the present invention (1), an area with a large number of violations is extracted and displayed as a frequent violation area based on the dangerous driving information in the driving information read from the recording medium. Easy to analyze. Therefore, the analysis result can be easily confirmed, thereby contributing to the safe driving of the driver.

  FIG. 1 is a diagram illustrating a schematic configuration of a driving support system according to an embodiment of the present invention. FIG. 1A is a diagram illustrating a schematic configuration of a driving support device on a center side, and FIG. 1B is a mobile station. It is a figure showing the schematic structure of the side. FIG. 2 is a block diagram showing the electrical configuration of the drive recorder 1, the control device 2, and the center device 4. The driving support system (also referred to as a crew member support system) according to the present embodiment includes a driving support device on the office side (center side) and a drive recorder 1 on the mobile station side.

  In the present embodiment, the drive recorder 1 is electrically connected to the operation management control device 2 (sometimes referred to as an AVM-ECU 2) mounted on the vehicle 3. For example, the position, time and dynamic information of the vehicle 3 can be transmitted from the control device 2 to the center device 4 as a driving support device using a digital radio frequency in the 400 MHz band. Based on this, a dispatching instruction is given to a specific vehicle among the plurality of vehicles 3. Further, the center device 4 issues an image photographing request to the drive recorder 1 via the control device 2 using the radio frequency or the like. However, the applied radio frequency is not necessarily limited to the 400 MHz band. For example, a frequency band allocated for a mobile phone may be applied. An analog radio frequency may be applied instead of a digital radio frequency.

  The drive recorder 1 (referred to as “Doraco 1”) records the position, time and dynamic information of the vehicle 3 from the control device 2 and, when a predetermined condition is established, associates the information and the like with image and audio information. It is configured to record. The center device is configured to be able to analyze and output the operation record by reading out the information recorded in the drive 1.

The drive recorder 1 includes a drive recorder main body 5 (referred to as a drive recorder body 5), a camera 6 that is an image pickup means, a microphone 7 that is a sound information acquisition means for acquiring sound information in the vehicle interior, and a buzzer that is an information output means for issuing warning information. 8 has. The camera 6 and the microphone 7 are electrically connected to the drive recorder body 5 and provided separately, and the buzzer 8 is provided integrally with the drive record body 5. The vehicle 3 is provided with at least one camera 6. The camera 6 is realized by a CCD camera (CCD: Charge Coupled Device). The camera 6 is attached to, for example, a windshield behind the rear-view mirror so as to photograph the vehicle front direction. That is, the camera 6 is fixed toward the front of the vehicle. In the doraco 1, as an option, a second or third camera 6 can be provided in the vehicle 3, specifically, a shooting camera 6 </ b> A in the passenger compartment 3 or a shooting camera behind the vehicle. It is also possible to provide 6B. There may be a case where the photographing switch 9 for photographing these cameras 6 is electrically connected to the dorareco body 5 and provided separately. GPS (Global Positioning)
(System) It is also possible to apply to the vehicle 3 a drive recorder to which an antenna and a GPS receiver (not shown) are added.

The dorareco body 5 is configured such that a CF card 11 (CF: Compact Flash) as a recording medium can be inserted and removed. The CF card 11 has a structure in which a flash memory that does not lose its memory even when it is not energized, and a controller circuit that is responsible for input / output to / from the outside are combined into a single card. A first RAM 12 (RAM: Random), which will be described later, of the dorareko body 5.
In the Access Memory, driving information including a vehicle peripheral image, audio information from the microphone 7 in the vehicle interior, position, individual, time, and actual empty vehicle information is sequentially recorded in an endless manner. When predetermined conditions are satisfied, at least a part of these pieces of information is recorded on the CF card 11.

  In the present embodiment, the control device 2 is configured to be provided with a GPS receiver and a GPS antenna 13, but it is also possible to adopt a configuration in which the DoraReco body 5 is provided with a GPS receiver and a GPS antenna. Position information and time information are acquired using the GPS antenna 13 and the GPS receiver, and crew data can be input from the LCD controller. The actual empty vehicle information is acquired from an actual vehicle / empty vehicle meter 14 as an actual empty vehicle operating means operated by the driver. The actual vehicle / empty vehicle meter 14 is provided with a switch operated by a driver's operation. When the passenger enters the vehicle and confirms the destination, the switching state of the switch is operated to the actual vehicle by the driver. When the vehicle arrives at the destination, the driver operates the switching state of the switch on the empty vehicle side, and payment is made.

  These position information, time information, crew data, and actual empty vehicle information are temporarily stored in the second RAM of the control device. When there is a request for information transmission from the center device 4 via the digital wireless device, the information stored in the second RAM is transmitted to the center device 4 via the digital wireless device. Moreover, the control apparatus 2 may transmit to the center apparatus 4 voluntarily regularly. Further, when there is a vehicle allocation request from the center device 4 via the digital wireless device, the control device 2 notifies the driver via the speaker SP. The control device 2 transmits the obtained position information, time information, crew data and actual empty vehicle information to the drive recorder 1 via the driver via the serial communication line SL. The drive recorder 1 receives the information via the first communication driver and stores it in the second SD-RAM of the first RAM 12.

The recording conditions will be described. As a recording condition, the G sensor output value is a threshold value Gmax. Or Gmin. Exceeding the threshold, the JPEG converted image recorded in the second SD-RAM endlessly over the recording range of up to 30 seconds, its G sensor output value, position, time, actual empty vehicle and vehicle speed information The voice information from the microphone 7 is recorded on the CF card 11. The time when the threshold is exceeded may be referred to as a trigger occurrence. The time obtained by adding the recording time T _aft seconds after the occurrence of the trigger to the recording time T _bef seconds before the occurrence of the trigger corresponds to the total time of the recording range in one event. For example, a maximum of 30 seconds can be set within a range of 5 seconds to 25 seconds before the trigger occurrence and 5 seconds to 25 seconds after the trigger occurrence.

As a recording condition, when there is a radio frequency image capturing request from the center device 4 to the control device 2, the first CPU 15 of the dorareko body 5 receives the signal as a command. Then, the JPEG converted image recorded endlessly in the second SD-RAM over the recording range of up to 30 seconds with reference to TR2 (referred to as trigger generation) at the time of command reception, the G sensor output value at the time of command reception, The position, time, actual sky and vehicle speed information, and voice information from the microphone 7 are recorded on the CF card 11. The time (T _bef + T _aft seconds) obtained by adding the recording time T _aft seconds after the occurrence of the trigger to the recording time T _bef seconds before the occurrence of the trigger corresponds to the total time of the recording range in one event. For example, when the center device 4 determines that the speed of the vehicle 3 obtained based on a vehicle speed pulse that is one of the operation data is higher than a predetermined speed, an image recording request from the center device 4 is executed. Is done. The parameter resulting from the generation of the trigger is not limited to the vehicle speed pulse. For example, there may be a case where an image recording request is made from the center device 4 based on operation data of at least one of periodic recording, sudden acceleration, sudden deceleration, and sudden handle. By using these plurality of operation data, it becomes possible to carry out detailed driving guidance for the crew members in the center device 4.

  FIG. 3 is a block diagram showing an electrical configuration of the center device 4. FIG. 4 is a diagram illustrating a main screen of the driving support system. The center device 4 includes a center communication unit 16, a center antenna 17, a center control unit 18, a center storage unit 19 (database: abbreviated DB), a display unit 20, a center audio output unit 21, an operation unit 22, and a readout. A CF card reader 23 as means and a printer 24 as output means are included. The center control unit 18 is realized by a personal computer.

  The center communication unit 16 receives the position information, time information, vehicle information, image information, and audio information of the vehicle 3 transmitted from the control device 2 via the center antenna 17. The center control unit 18 causes the center storage unit 19 to store the information received by the center communication unit 16. The center control unit 18 corresponding to the control means displays the image information and map information stored in the center storage unit 19 on at least one of the display unit 20 and the printer 24, and is realized by a speaker. The voice output unit 21 outputs the voice represented by the voice information stored in the center storage unit 19. The center control unit 18 transmits the information input by the operation unit 22 to the control device 2 via the center antenna 17 by the center communication unit 16. The center control unit 18 operates in accordance with the contents of the analysis software program, and corresponds to, for example, a CPU of a personal computer (sometimes referred to as a PC).

  The CF card reader 23 is configured to be able to read the driving information recorded on the CF card 11 in accordance with the occurrence of an event related to the vehicle 3. The read operation information is temporarily stored in the center storage unit 19 and aggregated. The center control unit 18 displays the vehicle mark on the map of the display unit 20 based on the driving information read by the CF card reader 23 and stored in the center storage unit 19, and also displays the position data of the vehicle 3. A corresponding peripheral image of the vehicle is displayed on the display unit 20 simultaneously with the mark. The vehicle mark indicates position data of the vehicle 3 when the event occurs.

  FIG. 5 is a flowchart showing a PC data reading process from the CF card 11. This process starts under the condition that the center device 4 is powered on. After the start, the process proceeds to step a1, and the center control unit 18 determines whether or not the CF card 11 has been inserted into the CF card reader 23. When the determination is “NO”, the process returns to step a1. The center control unit 18 moves to step a2 based on the determination that it has been inserted, and the crew control unit 18 performs the crew data (driver name), image data, G sensor output value, position data, time (time), actual empty vehicle, vehicle speed, and voice. Read information. Next, in step a3, the center control unit 18 registers the read data in the center storage unit 19 and creates a database for each driver. Next, the process proceeds to step a4, and the center control unit 18 deletes the data in the CF card 11. After notifying completion in step a5, the present process is terminated.

  FIG. 6A is a flowchart showing the analysis processing of the center control unit 18, and FIG. 6B is a diagram showing the contents of data in the reproduction order. This process starts under the condition that the center device 4 is powered on. After the start, the process proceeds to step b1, and the center control unit 18 reads the operation from the operation unit, that is, the analysis menu shown in FIG. Next, the process proceeds to step b2, and the center control unit 18 determines whether or not the image reproduction processing is performed. If it is determined as “No”, the process proceeds to Step b11. When it is determined that the image reproduction processing is being performed, the center control unit 18 shifts from the center storage unit 19 to the crew data (driver name), image data, G sensor output value, position data, time ( Time), actual empty vehicle, vehicle speed and voice information.

  Next, in step b4, the center control unit 18 places the vehicle mark MK on the map as shown in FIG. 7B based on the position data. The center control unit 18 reads out the image data linked to the position data and causes the display unit 20 to display the image data. Next, the process proceeds to step b5, where the center control unit 18 recognizes the event based on the G sensor output value and the vehicle speed, and indicates the event content at the position where the event occurred (FIG. 7 ( b) is displayed on the map. However, the mark indicating the event content is displayed only when the map is designated on the main screen 25.

  Next, the process proceeds to step b6, and the center control unit 18 determines whether or not an operation of the playback button Pb (see FIG. 7A) has been performed. When the determination is “NO”, the process returns to step b3. If it is determined that there is an operation, the process proceeds to step b7. Here, based on the position data and the time, the center control unit 18 moves and reproduces the vehicle mark MK on the map in order of time from before the event occurs. The center control unit 18 reproduces the image data in synchronization with the vehicle mark MK. Next, in step b8, the center control unit 18 reproduces and displays the output value of the G sensor, the vehicle speed SPD, and the sound in synchronization with the movement of the vehicle mark MK as shown in FIG.

  Next, in step b9, the center control unit 18 determines whether or not it is several seconds before the event. When the determination is “NO”, the process returns to step b7. The center control unit 18 superimposes a countdown value (display 27 in FIG. 7B) on the personal information display area in correspondence with the time before the event when it is determined that the event is several seconds before. Display. When the event time is reached, a mark indicating that is displayed.

  Next, the process proceeds to step b11, and the center control unit 18 determines whether or not the risk ranking (see FIGS. 8 and 9). If it is determined as “NO”, the process proceeds to step b13. When the risk ranking is determined, the process proceeds to step b12, and the center control unit 18 displays the ranking of the risk for each driver as shown in FIG. Next, the process proceeds to step b13, and the center control unit 18 determines whether or not the performance analysis is performed as shown in FIG. If it is determined as “NO”, the process proceeds to step b15. If it is determined that the result analysis is performed, the process proceeds to step b14. Here, the center control unit 18 displays the actual vehicle position on the map based on the event (actual vehicle data or the like) (see FIG. 11).

  Next, the process proceeds to step b15, and the center control unit 18 determines whether or not it is a violation analysis. If the determination is “NO”, the process proceeds to step b17. When it is determined that the analysis is a violation analysis, the process proceeds to step b16, and the center control unit 18 maps the position at the time of the event occurrence based on the event (G sensor, vehicle speed sensor, etc.) as shown in FIGS. Display above. Thereafter, the process proceeds to step b17 to return to the operation reading process.

Here, processing when data is duplicated will be described.
The center control unit 18 does not newly register the data in the center storage unit 19 when the data of the CF card 11 already registered in the center storage unit 19 is read. Specifically, the center control unit 18 uses the keywords (* the actual number of violations) for each data (image data, audio data, operation data (actual vehicle results, violation results)) when reading the CF card. The violation item is also added to the keyword) and the search is performed. If it is registered, it is not registered in the center storage unit 19, and if not registered, it is registered in the center storage unit 19.

  7A and 7B are diagrams showing an image data reproduction screen. FIG. 7A is a diagram in which the main screen 25 and the sub screen 26 are simultaneously displayed. FIG. 7B is position information when an event occurs. In addition to displaying the contents of the event on a map corresponding to the above, the display 27 showing the countdown and the like. The center control unit 18 displays the main screen 25 and the sub screen 26 on one display unit 20 at the same time. The sub screen 26 has a smaller display area than the main screen 25. When the center control unit 18 displays the vehicle mark MK on the main screen 25 and displays the surrounding image of the vehicle 3 on the sub-screen 26, the center control unit 18 maps the event contents corresponding to the position information when the event occurs. It is supposed to be displayed above. When the map is designated on the sub-screen 26, the map becomes smaller, so the event content is not displayed, and the event content is displayed only when the map is designated on the main screen 25.

  The center control unit 18 has a function of causing the display unit 20 to display a display 27 indicating a countdown before the event occurs. As shown in FIG. 7B, in the vicinity of the sub-screen 26 in the display unit 20, for example, “5” indicating 5 seconds before the occurrence of the event is described, and thereafter this display 27 is sequentially displayed as “4”, “3”. “,” “2,” and “1” are displayed in units of seconds. At the same time, the event content corresponding to the position information is displayed on the map.

  FIG. 8 is a diagram illustrating a setting screen for the target period of the risk ranking. The risk ranking is synonymous with arranging the drivers in the descending order of the points which are evaluation points (in order of badness). FIG. 9 is a diagram illustrating a risk ranking screen. The display means 20 reads out dangerous driving information, which is one of the events, among driving information from the CF card 11 for each driver, and displays the contents of dangerous driving information that is frequently used for each driver. The risk ranking extraction condition is set based on any one of a target date, a specified period (start time, end date), and a monthly level. In FIG. 8, a specified period is selected as the extraction condition. The extraction condition can be switched by the operation unit 22.

  Violation items include G detection corresponding to overspeed, sudden acceleration, sudden braking, sudden steering, and collision level. As the extraction condition, weighting of evaluation points (for example, 1 to 10 points (1 to 100 points for G detection only)) for each violation item is set. When the screen is activated, it is displayed at the point selected last time. At the initial activation, only “G detection” is displayed with “30” points, and other items are displayed with “5” points.

  The risk point is a value calculated by multiplying the number of violations of the violation item by the violation item point and further multiplying by the coefficient for each time zone. For example, if the speed over weight point is “5”, early morning and late night (coefficient “2.00”) 5 speed overruns, and busy (coefficient “0.50”) 10 overspeed dangers The point displays the value calculated as ((5 × 5) × 2.00) + ((5 × 10) × 0.50 = 75 points, where the first decimal place is rounded off. If the time that falls into multiple time zones is calculated, the coefficient of the corresponding time zone is calculated with the highest value, and the coefficient when the time when the violation occurred does not fall within any time zone is “1.00”. It is determined to be calculated in

  The total number of violations is displayed in the execution count field. In the item of driving tendency, “the item with the most violations” and “the number of times of G detection” are displayed. However, the number of times of G detection is displayed only when it is detected. When there are two or more violation items, the items to be displayed are determined in the order of “G detection”, “sudden steering wheel”, “sudden braking”, “sudden acceleration”, “overspeed”.

  FIG. 10 shows a frequent violation area analysis screen. FIG. 11 is a diagram illustrating a performance area analysis screen. In the area analysis process, the area is analyzed by the following processing method. The following is an example of frequent violation areas, but the results area is the same process. An analysis process in the simple mode will be described. First, a mesh area (500 m × 500 m) where violation data often occurs is extracted from the database. Next, violation data corresponding to mesh areas in the top 50 mesh areas where violation data frequently occur and corresponding to each mesh area are extracted from the center storage unit 19 as area extraction target data. Candidate areas * 1 are extracted from the area extraction target data one by one based on the processing flow of the next page. The candidate area * 1 means a circle area centered on a position moved northward from the position of the area extraction target data by the radius of the analysis area. Next, the top 20 candidate areas with a large number of relevant cases in the candidate area are determined as violation frequent occurrence areas, and are displayed and developed on the analysis screen. For these violation analysis and performance analysis, either area display or point display can be selected.

  FIG. 12 is a diagram illustrating a time zone setting screen. The display means 20 has a function of displaying dangerous driving information or actual vehicle information in a predetermined time zone. As a setting item, the name of the time zone “for example, early morning or late night” can be input, and the cause of violation of the time zone “for example, the cause of sleepiness attacked at early morning or late night” can be input. As a setting item, it is possible to select a time “0 to 23:00” as a target of the time zone. The start time of this time zone is displayed from the time set as the start time of the environment setting. As a setting item, the risk point on the risk ranking screen can be input as a coefficient at the time of calculation. The setting range is, for example, “0.01” to “9.99”, and the default value is “1.00”.

  FIG. 13 is a diagram showing a result area form at the time of congestion. The center control unit 18 performs control for causing the printer 24 to output a map of violation points in a frequent violation area (black, hollow circle). On the recording paper, the date period analyzed as the target period is displayed, and the analyzed crew information is displayed. In addition, the ranking of frequent violation areas and the number of violations are displayed. The violation item distribution graph of the frequent violation areas is displayed as the violation item distribution. Analysis items include overspeed, sudden acceleration, sudden braking, sudden steering and G detection. Violation item distribution displays the violation items that occurred most frequently in the frequent violation areas and the rate of occurrence. If there are two or more violation items that occurred most frequently, “G detection”, “steep steering”, “sudden braking” ”,“ Rapid acceleration ”, and“ overspeed ”items to be displayed in this order. Further, the most dangerous time in the violation frequent occurrence area is displayed as the frequent violation occurrence time.

  FIG. 14 is a diagram showing a dangerous driving instruction book. The center control unit 18 controls the printer 24 to output a dangerous driving instruction book. On the recording sheet, the date and time when G was detected is displayed as the occurrence time, and the name of the crew member who was driving is displayed. In addition, the operation information of the image recording time is displayed in a graph. Here, the G detection position is indicated by a circle, and a horizontal line is highlighted when the vehicle is traveling at a speed exceeding the overspeed. An up arrow is displayed if a sudden acceleration violation has occurred, a down arrow is displayed if a rapid deceleration violation has occurred, and a square is displayed if a sudden steering violation has occurred The

  The displayed image data is displayed even when the image data displayed on the image data reproduction screen is displayed and the images of the option cameras 6A and 6B are also displayed on the image data reproduction screen. As G sensor data, for example, an X value and a Y value of 4 seconds before G detection and 2 seconds after G detection are displayed in a graph. As the travel locus, the travel locus at the time of image recording and violation information are displayed on the map. Examples of violation items include overspeed, sudden acceleration, sudden braking, sudden steering, G detection, and the number of violations. As the travel locus, the entire locus traveled for 30 seconds is displayed.

  According to the driving support apparatus described above, based on the driving information read by the CF card reader 23, the vehicle mark indicating the position information of the vehicle 3 when the event occurs is displayed on the map, and the position information Since the peripheral image of the vehicle 3 corresponding to is displayed on the display unit 20a in synchronization with the mark, it is easy to analyze where and in what situation. Therefore, the analysis result can be easily confirmed, thereby contributing to the safe driving of the driver.

  Since the display means 20 displays the contents of the event on the map in correspondence with the position information when the event occurs, it becomes easier to understand where and what situation has occurred, and it becomes easier to analyze. When the vehicle mark MK is displayed on the main screen 25 and the surrounding image of the vehicle 3 is displayed on the sub-screen 26, the event content corresponding to the position information is displayed on a map. Accordingly, a large map can be displayed and output on the main screen 25, and the portion displayed separately for each event content can be easily seen, and the efficiency of the drawing process can be improved.

  Since the display 27a indicating the countdown before the occurrence of the event is displayed on the display unit 20a, it can be recognized that the event has occurred for a predetermined time. Since the countdown display is switched from the normal screen before a predetermined time before the event occurs, the display can be analyzed in an easy-to-read manner without always securing the display space for the countdown display. The dangerous driving information, which is one of the events, is read from the CF card 11 for each driver and the contents of the dangerous driving information that is frequently used for each driver are displayed. Can be instructed to solve the problem and contribute to safe driving.

  The manager who displays the driver's real vehicle information, which is one of the driving information, on the map in correspondence with the position information can efficiently perform the vehicle allocation. By giving priority to a driver who has a track record of driving in a certain area, the driver can afford to drive and can eliminate dangerous driving. Therefore, it can contribute to safe driving. Since the content of the driving danger information, which is one of the events, among the driving information is displayed on the map in correspondence with the position information, driving or driving guidance can be performed with care to avoid the position. Since dangerous driving information or actual vehicle information can be displayed in a predetermined time zone, it is easy to understand how often dangerous driving information is present in that time zone.

  In the present embodiment, recording / reproduction is performed at the center side, but recording / reproduction can be performed not only by the center but also by a monitor (navigation system) in the vehicle. The image recorded on the CF card 11 and the corresponding position are read out, and the past position is marked on the map using the map of the navigation system in the host vehicle, and the peripheral image corresponding to the position is displayed. It is also possible to display on the monitor in synchronization with the movement of the mark. However, for safety reasons, such a reproduction display is performed only when the host vehicle is stopped.

  Therefore, it is applicable not only for taxis but also for general users. As a result, a memorable video can be reproduced on the vehicle. By passing the CF card to another user's vehicle and playing it, it is possible to tell a difficult path or to tell a dangerous place.

The following embodiments are possible for the present invention.
(1) In a driving support apparatus that reads driving information about a past vehicle from a recording medium and analyzes driving performance, the driving information is read by a reading unit that reads the driving information recorded on the recording medium in accordance with the occurrence of an event relating to a predetermined vehicle. Based on the driving information, a vehicle mark indicating the position information of the vehicle corresponding to the occurrence of the event is displayed on the map, and a peripheral image of the vehicle corresponding to the position information is displayed on the display unit simultaneously with the mark A driving support device comprising means.

  Based on the driving information read by the reading means, the vehicle mark indicating the vehicle position information corresponding to the occurrence of the event is displayed on the map, and the surrounding image of the vehicle corresponding to the position information is displayed simultaneously with the mark. It is easy to analyze where and what situation has occurred. Therefore, the analysis result can be easily confirmed, thereby contributing to the safe driving of the driver.

  (2) The driving support device, wherein the control means displays the content of the event on a map in correspondence with the position information when the event occurs.

  Corresponding to the position information when the event occurs, the contents of the event are displayed on the map, so it is easy to grasp where and what situation has occurred, and it becomes easier to analyze.

  (3) The control means simultaneously displays a main screen and a sub-screen smaller than the main screen on one display unit, displays the vehicle mark on the main screen, and displays the vehicle on the sub-screen. When displaying the peripheral image of this, the event content corresponding to the said positional information is displayed on a map, The driving assistance device characterized by the above-mentioned.

  When the vehicle mark is displayed on the main screen and the surrounding image of the vehicle is displayed on the sub-screen, the event content corresponding to the position information is displayed on the map. Therefore, a large map can be displayed and output on the main screen, and the portion displayed separately for each event content can be easily seen, and the efficiency of the drawing process can be improved.

  (4) The driving information before and after the occurrence of the event is recorded on the recording medium, and the control unit is configured to record the vehicle mark before and after the occurrence of the event based on the driving information before and after the occurrence of the event. Is displayed on a map, and a surrounding image of the vehicle is displayed simultaneously with the vehicle mark.

  Based on the driving information before and after the occurrence of the event, the vehicle mark is displayed on the map before and after the occurrence of the event, and the surrounding image of the vehicle is displayed simultaneously with the vehicle mark. It becomes possible to analyze the situation in detail.

  (5) The driving support device, wherein the control means causes the display unit to display a display indicating a countdown before the event occurs.

  Since the display indicating the countdown is displayed on the display unit before the event occurs, it can be recognized that the event occurs from a predetermined time before. Since the countdown display is switched from the normal screen before a predetermined time before the event occurs, the display can be analyzed in an easy-to-read manner without always securing the display space for the countdown display.

  (6) The control means displays the contents of dangerous driving information that is frequently used for each driver based on dangerous driving information and driver information, which is one of the events, among driving information. Driving assistance device.

  The dangerous driving information that is one of the events is read from the recording medium for each driver and the contents of the dangerous driving information that is frequently used by each driver are displayed. Guidance can be given to eliminate, contributing to safe driving.

  (7) The driving support device characterized in that the control means displays on the map the actual vehicle information of the driver, which is one of the events, among the driving information in correspondence with the position information.

  The manager who displays the driver's actual vehicle information, which is one of the events, among the driving information on the map in correspondence with the position information can efficiently perform the dispatch. By giving priority to a driver who has a track record of driving in a certain area, the driver can afford to drive and can eliminate dangerous driving. Therefore, it can contribute to safe driving.

  (8) The driving support device, wherein the control means displays the content of driving danger information, which is one of the events, among driving information on a map in association with the position information.

  Since the content of the driving danger information, which is one of the events, among the driving information is displayed on the map in correspondence with the position information, driving or driving guidance can be performed with care to avoid the position.

  (9) The driving support device, wherein the control means displays dangerous driving information or actual vehicle information in a predetermined time zone.

  Since dangerous driving information or actual vehicle information can be displayed in a predetermined time zone, it is easy to understand how often dangerous driving information is present in that time zone.

  (10) In a driving information calculation system for reading driving information relating to past vehicles from a recording medium and analyzing driving performance, a computer including an input means, a calculating means, and an output means is recorded on the recording medium according to the occurrence of a predetermined vehicle event. Based on the driving information read by the reading means for reading the driving information recorded on the vehicle, the vehicle mark indicating the vehicle position information corresponding to the occurrence of the event is displayed on the map, and the vehicle corresponding to the position information Driving information calculation system for functioning as a means for displaying the peripheral image of the mark on the display unit simultaneously with the mark.

  As a means for causing a computer to display a vehicle mark indicating vehicle position information when an event occurs on a map and to display a vehicle peripheral image corresponding to the position information on the display unit in synchronization with the mark. Because it works, it is easy to analyze where and what situation. A driving information calculation system that can easily confirm the analysis result and contribute to the safe driving of the driver can be realized using a computer.

1 is a diagram illustrating a schematic configuration of a driving support system according to an embodiment of the present invention, in which FIG. 1A is a diagram illustrating a schematic configuration of a driving support device on a center side, and FIG. 1B is a schematic configuration on a mobile station side; FIG. FIG. 2 is a block diagram illustrating an electrical configuration of a drive recorder 1, a control device 2, and a center device 4. 3 is a block diagram illustrating an electrical configuration of a center device 4. FIG. It is a figure showing the main screen of a driving assistance system. 4 is a flowchart showing a PC data reading process from the CF card 11. 4 is a flowchart showing an analysis process of a center control unit 18. It is a figure showing the content of the data of a reproduction order. FIGS. 7A and 7B are diagrams showing an image data reproduction screen, in which FIG. 7A is a diagram in which a main screen 25 and a sub screen 26 are displayed simultaneously, and FIG. 7B is a diagram corresponding to position information when an event occurs. It is a figure showing the display 27 etc. which show the countdown while displaying the content of the said event on a map. It is a figure showing the setting screen of the target period of a risk ranking. It is a figure showing a risk ranking screen. It is a figure showing the violation frequent occurrence area analysis screen. It is a figure showing a performance area analysis screen. It is a figure showing a time slot | zone setting screen. It is a figure showing the performance area form at the time of congestion. It is a figure showing a dangerous driving instruction book.

Explanation of symbols

18 Center Control Unit 19 Center Storage Unit 20 Display Means 20a Display Unit 23 CF Card Reader 25 Main Screen 26 Subscreen

Claims (7)

In a driving support method for reading driving information about a vehicle from a recording medium and analyzing driving performance,
A driving support method characterized in that an area with a large number of violations is extracted and displayed as a frequent violation area based on dangerous driving information in the driving information read from the recording medium. In a driving support method for reading driving information about a vehicle from a recording medium and analyzing driving performance,
A driving support method comprising extracting and displaying an area having a large number of actual vehicles based on driving information read from the recording medium.   The driving support method according to claim 1, wherein the driving information is displayed while being narrowed down to a predetermined time zone.   The driving support method according to claim 1, wherein the ranking of the frequent violation areas and the number of violations are displayed together.   The driving support method according to claim 1, wherein the violation items most frequently generated in the frequent violation areas and the violation occurrence rates are displayed together. In a driving support device that reads driving information about a vehicle from a recording medium and analyzes driving performance,
Based on the dangerous driving information of the driving information read from the recording medium, means for extracting an area with a large number of violations as a violation frequent occurrence area,
Means for displaying the extracted frequent occurrence areas of violations on a map of a display unit. In a driving support device that reads driving information about a vehicle from a recording medium and analyzes driving performance,
Based on the driving information read from the recording medium, means for extracting an area with a large number of actual vehicles,
Means for displaying the extracted area on a map of a display unit.