JP2012203662A - Driving condition analysis support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving condition analysis support device which allows intuitive recognition of relation between a traveling position of a vehicle and a vehicle state such as a traveling speed or an engine speed at the traveling position.SOLUTION: The driving condition analysis support device time-sequentially and successively displays a track line K which is a section of a traveling track in a display color predetermined corresponding to the highest traveling speed on a traveling road on the traveling road on a map image P specified by the traveling position, on the basis of vehicle information including the traveling position of the vehicle and the vehicle state (traveling speed and engine speed) when traveling at the traveling position. Thus, by time-sequentially and successively displaying the track line K, a traveling route of the vehicle can be reproduced by an actually traveled route, and the display color can be changed corresponding to the vehicle condition in each track line section.

Description

  The present invention relates to a driving condition analysis support device that supports analysis of driving conditions by displaying a travel locus of a vehicle on a map image.

  For example, in the case of a transport company that uses a vehicle such as a taxi, bus, truck, etc., it is important to promote safe driving for each in-house driver and prevent accidents in advance. .

  Therefore, for example, an operation recording device called a “digital tachograph” is installed so that an administrator arranged in the company of the carrier can always check whether each driver actually performs safe driving on a daily basis. It has been put into practical use. This digital tachograph is installed in each vehicle such as a taxi, bus, truck, etc., and the vehicle information including the vehicle speed such as the running speed and the engine speed acquired every certain time (for example, 0.5 seconds) is stored in a memory card or the like. It is automatically recorded in the storage means.

  And, for example, by using a personal computer as a driving situation analysis support device installed at a sales office or the like, the administrator reads the data such as the vehicle information recorded on the memory card or the like and analyzes it in detail. , Driving time, mileage, maximum speed, average speed, speed over time, number of speed over, engine over speed, over speed, sudden start, sudden acceleration, sudden deceleration, idling time, etc. It is possible to grasp each driver, and based on the grasped result, it becomes possible to promote safe driving and economical driving for each driver.

  Further, in recent years, GPS (Global Positioning System) devices that acquire the travel position of a vehicle from a satellite have become widespread, and the travel position of the vehicle acquired by the GPS device, the travel speed when traveling in the travel position, In some cases, the vehicle state such as the engine speed is correlated, and the travel position and the vehicle state are recorded on a memory card or the like as vehicle information.

  Then, the manager displays the map image on the display device, and displays the travel locus of the vehicle over the map image using the vehicle information (travel position) recorded in the memory card. For example, it can be used as a reference for setting an optimum route such as delivery and creating a delivery plan.

  For example, the vehicle display device disclosed in Patent Document 1 includes display means 803 having a first display area 803a and a second display area 803b, as shown in FIG. In the first display area 803a, an SP graph 834 indicating a change in travel speed and a TA graph 835 indicating a change in engine speed are displayed. A map 836 and a travel locus 837 are displayed in the second display area 803b. When the playback mode is executed, the time bar 838 moves horizontally in the first display area 803a at a predetermined speed, and continuously indicates the running speed or engine speed at the time of playback, and synchronizes with this. Then, the vehicle position mark 839 moves on the traveling locus to continuously indicate the vehicle position at the reproduction time point. In this way, the travel speed of the vehicle and the engine speed at each travel position could be grasped simultaneously with the reproduction of the travel route of the vehicle by the movement of the vehicle position mark 839.

JP 2010-149668 A

  However, in the above-described vehicle display device, the vehicle state such as the travel speed and the engine speed and the reproduction of the travel route of the vehicle are displayed in separate display areas, so the relationship between the travel position and the vehicle state However, there was a problem that it was difficult to grasp intuitively.

  The present invention aims to solve the above problems. That is, an object of the present invention is to provide a driving condition analysis support device that can intuitively grasp the relationship between the traveling position of the vehicle and the vehicle state such as the traveling speed and the engine speed at the traveling position.

  In order to achieve the above object, the invention described in claim 1 is a driving situation analysis support apparatus for displaying a traveling locus of a vehicle on a map image, the traveling position of the vehicle collected in an external device. Vehicle information storage means for storing vehicle information including the vehicle state when the vehicle is traveling at the travel position, and each section of the travel locus based on the vehicle information stored in the vehicle information storage means And a traveling locus reproducing means for sequentially displaying in time series in a predetermined display color corresponding to the vehicle state at a position on the map image specified by the traveling position. It is the driving condition analysis support device.

  According to a second aspect of the present invention, in the first aspect of the invention, the vehicle state includes a traveling speed of the vehicle, and the traveling locus reproduction means corresponds to the traveling speed. The section of the travel locus is extended and displayed from one end near the previous section to the other end on the opposite side at a predetermined extension speed.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the traveling locus reproduction means may be arranged on or near a section of the traveling locus when the vehicle state satisfies a predetermined condition. In addition, a predetermined mark corresponding to the condition is displayed.

  According to the first aspect of the present invention, vehicle information including the travel position of the vehicle and the vehicle state when traveling in the travel position collected in the external device is stored in the vehicle information storage means. Based on this vehicle information, the traveling locus reproduction means time-sequentially displays each section of the traveling locus in a display color predetermined corresponding to the vehicle state at a position on the map image specified by the traveling position. Since it is displayed sequentially, it is possible to reproduce the travel route of the vehicle by the actual route traveled by displaying each section of the travel locus in chronological order, and the display color can be changed according to the vehicle situation at that position. For example, the display color when the traveling speed is less than or equal to a predetermined speed upper limit value is defined as black, the display color when the traveling speed exceeds the upper speed limit value is defined as red, etc., and each section of the traveling locus is determined as the traveling speed (vehicle state). Color-coded according to By displaying, etc., it is possible to simultaneously grasp the driving situation along with the route traveled, and therefore intuitively grasp the relationship between the traveling position of the vehicle and the vehicle state such as traveling speed and engine speed at the traveling position. be able to.

  According to the second aspect of the present invention, the vehicle state includes the traveling speed of the vehicle, and the section of the traveling locus is moved closer to the section immediately before it at a predetermined extension speed corresponding to the traveling speed. Since the display is extended from one end to the other end on the opposite side, the extension speed of each section of the travel locus can be changed according to the speed of the vehicle. For example, the extension when the travel speed is a predetermined speed threshold or less The speed is defined as a low speed, the extension speed when the speed exceeds the threshold is set as a high speed that is faster than the low speed, etc., and each section of the travel locus is displayed with the extension speed changed according to the travel speed (vehicle state) By doing so, it is possible to produce a more realistic driving feeling, so that it is possible to more intuitively understand the relationship between the driving position of the vehicle and the vehicle state such as the driving speed and engine speed at the driving position. it can.

  According to the third aspect of the present invention, when the vehicle state satisfies a predetermined condition, a mark determined in advance corresponding to the condition is displayed on or near the section of the travel locus. The driving situation in the section can be grasped by the mark. For example, the above condition is satisfied by setting the traveling speed to be equal to or lower than a predetermined speed upper limit value and the engine speed to be equal to or lower than the predetermined speed upper limit value. By displaying a predetermined eco mark or the like on or near each section of the travel locus, the driving situation in the section can be grasped at a glance. It is possible to more intuitively understand the relationship between the vehicle speed and the vehicle state such as the engine speed.

It is a figure which shows the hardware constitutions of one Embodiment of the driving condition analysis assistance apparatus of this invention. It is a schematic functional block diagram of the driving | running condition analysis assistance apparatus of FIG. It is a figure which shows an example of the map image displayed on the display apparatus of the driving condition analysis assistance apparatus of FIG. It is master data stored in the memory | storage device of the driving | running condition analysis assistance apparatus of FIG. 1, Comprising: (a) is a figure which shows an example of speed upper limit information, (b) is an example of rotation speed upper limit information. FIG. It is a figure which shows an example of the vehicle information memorize | stored in RAM of the driving | running condition analysis assistance apparatus of FIG. It is a flowchart which shows an example of the process (traveling track reproduction | regeneration process) which concerns on this invention in CPU of the driving condition analysis assistance apparatus of FIG. It is a figure which shows an example of the driving | running condition analysis information produced | generated in the process shown to the flowchart of FIG. FIG. 4 is a diagram in which the entire travel locus of the vehicle is displayed superimposed on the map image shown in FIG. 3. It is a figure explaining the operation | movement by which the driving locus (trajectory line K1) of a vehicle is displayed on the map image shown in FIG. FIG. 10 is a diagram illustrating an operation in which a vehicle travel locus (trajectory line K2) is displayed on the map image following FIG. 9; It is a figure explaining the operation | movement by which the driving | running | working locus | trajectory (trajectory line K3) of a vehicle is superimposed and displayed on a map image following FIG. FIG. 12 is a diagram illustrating an operation in which a vehicle travel locus (trajectory line K4) is displayed on a map image following FIG. FIG. 13 is a diagram for explaining an operation in which a vehicle travel locus (trajectory lines K5 to K10) is displayed superimposed on a map image following FIG. 12. It is a figure explaining operation | movement of the conventional vehicle display apparatus.

  Hereinafter, an embodiment of the driving condition analysis support apparatus of the present invention will be described with reference to FIGS.

  Such a driving situation analysis support device is installed at, for example, the office of a carrier that performs transportation work using a vehicle, and the traveling position recorded by an in-vehicle device such as a digital tachograph mounted on the vehicle. And an analysis of the driving situation of the vehicle based on the vehicle information including the vehicle state (travel speed, engine speed, etc.). The driving situation analysis support device of the present embodiment supports the analysis of the driving route and the driving situation by displaying the map image on the display device and displaying the driving locus of the vehicle superimposed on the map image. It is. The vehicle information used for such an analysis is recorded on a memory card such as an SD card or a CF card by an in-vehicle device, for example, and transferred to the driving situation analysis support device by this memory card.

  The driving situation analysis support device 50 (hereinafter referred to as the support device 50) shown in FIGS. 1 and 2 is configured by a known personal computer or the like. As illustrated in FIG. 1, the support device 50 includes a CPU (Central Processing Unit) 51 that controls the overall operation of the support device 50 according to a predetermined program. The CPU 51 has a ROM 52 which is a read-only memory storing basic operation programs for the CPU 51 and the like via the bus B, and has a work area for storing various programs and various data necessary for the processing work of the CPU 51. A RAM 53 which is a writable memory is connected.

  A storage device 54 composed of a hard disk device, a large-capacity memory, or the like is connected to the CPU 51 via a bus B. The storage device 54 includes a driving situation analysis support program for analyzing the vehicle information recorded in the memory card and analyzing the driving situation such as whether the vehicle is driving in safe driving and low fuel consumption driving (eco driving). Stored. The driving situation analysis support program stored in the storage device 54 is read from the storage device 54 and then stored (loaded) in the RAM 53 and executed by the CPU 51. The CPU 51 functions as various means such as a traveling locus reproducing means by executing the driving situation analysis support program.

  An input device 55, a display device 56, and an external I / F unit 57 are connected to the CPU 51 via the bus B. The input device 55 includes a keyboard, a mouse, and the like, and outputs input information corresponding to a user operation to the CPU 51. As the display device 56, various types of display devices such as a known liquid crystal display and CRT are used. Under the control of the CPU 51, an operation screen, an analysis result screen, a travel locus reproduction screen, and the like of the driving situation analysis support program are displayed.

  The external I / F unit 57 includes various interfaces for wireless communication, memory card access, and the like, and is a part to which external devices including these interfaces are connected. In the present embodiment, the external I / F unit 57 is provided with a card I / F 57a and a communication terminal I / F 57b. A memory card C is attached to the card I / F 57a, and an in-vehicle device T mounted on the vehicle is connected to the communication terminal I / F 57b via wireless communication.

  In the storage device 54, map information for displaying the map image P shown in FIG. 3 as an example, a road Rn (n represents a natural number) on the map image P, and an upper limit of an allowable speed on the road Rn. Speed upper limit information J1 (shown in FIG. 4 (a)) indicating the relationship with the speed upper limit indicating the value, and speed upper limit information J2 (shown in FIG. 4 (a)) indicating the upper limit of the engine speed allowed when the vehicle travels. 4 (b)) is stored as master data M. The map information includes latitude and longitude information indicating the position of each road Rn. In the present embodiment, “road” refers to a section (a portion without a branch) between a branch point and a branch point of the entire road that is continuous in a mesh shape. The storage device 54 stores various information (driver management information, vehicle management information, vehicle operation information, etc.) relating to vehicle operation as a database D.

  In the memory card C, vehicle information J3 shown in FIG. The in-vehicle device T acquires a traveling position (for example, latitude and longitude) at a certain time (for example, 0.5 seconds) from a GPS device mounted on the vehicle according to the traveling of the vehicle, and simultaneously from various sensors. Vehicle conditions such as travel speed and engine speed are acquired, vehicle information J3 associated with these is generated, arranged in chronological order, and recorded in the memory card C.

  The CPU 51 includes (1) a card processing unit that reads vehicle information J3 from the memory card C into the RAM 53, (2) a data processing unit that reads master data M from the storage device 54, and (3) vehicle information J3 and master data M. Based on the speed upper limit value information J1 and the rotation speed upper limit value information J2, a safe driving processing unit that analyzes the driving situation on the road on which the vehicle has traveled, (4) based on the analysis result of the safe driving processing unit, Various functions such as an image processing unit that performs reproduction, (5) an image processing unit that superimposes the reproduction of the travel locus by the reproduction processing unit on the map image P indicated by the map information included in the master data M, and displays it on the display device 56. Acts as a block.

  Next, an example of the operation (running locus reproduction process) according to the present invention performed by the CPU 51 of the support device 50 will be described with reference to the flowchart of FIG.

  When a predetermined operation for requesting execution of the travel locus reproduction process is input to the input device 55 of the support device 50, the CPU 51 advances the process to step S110 in FIG.

  In step S110, the vehicle information J3 is read from the memory card C and written to the RAM 53 for copying. At this time, it may be copied to the storage device 54 instead of the RAM 53. Then, the process proceeds to step S120.

  In step S120, the travel position is taken in order from the head of the vehicle information J3 copied to the RAM 53, and one road Rn on the map image P on which the vehicle traveled is specified from the latitude and longitude indicated by the travel position. In the present embodiment, since the travel position is recorded at short time intervals (0.5 seconds), one road is specified by a plurality of travel positions. In addition, since a measurement error of the GPS device is included with respect to the travel position, when the travel position deviates from the road Rn on the map image P, the travel position is appropriately treated as indicating the road Rn closest to the travel position. Make corrections. And it memorize | stores sequentially as driving condition analysis information J4 (shown in FIG. 7) in the predetermined area | region provided on RAM53. Then, the process proceeds to step S130.

  In step S130, the maximum traveling speed on the road identified in step S120 (hereinafter referred to as “traveling road R”) is detected. That is, the fastest travel speed is detected as the maximum travel speed on the road among the travel speeds stored in association with the travel position used to identify the road on which the vehicle traveled in step S120. The maximum traveling speed is stored in association with the traveling road R in the driving situation analysis information J4. Then, the process proceeds to step S140.

  In step S140, the speed upper limit value on the traveling road R is read from the speed upper limit information J1 stored in the storage device 54, and compared with the maximum traveling speed detected in step S130, a speed excess determination is performed. Then, the process proceeds to step S150.

  In step S150, the driving situation on the road R is stored based on the determination result of the overspeed determination. That is, if the maximum travel speed is equal to or less than the speed upper limit value, information indicating “no excess” as the speed excess determination result is stored in association with the travel road R in the driving situation analysis information J4. Alternatively, if the maximum traveling speed exceeds the speed upper limit value, information indicating “exceeded” as the speed excess determination result is stored in association with the traveling road R in the driving situation analysis information J4. Then, the process proceeds to step S160.

  In step S160, the maximum engine speed of the vehicle on the road R is detected. That is, the fastest engine speed is detected as the highest engine speed on the road from the engine speeds stored in association with the travel position used to identify the road on which the vehicle traveled in step S120. The maximum engine speed is stored in association with the traveling road R in the driving situation analysis information J4. Then, the process proceeds to step S170.

  In step S170, the rotational speed upper limit value is read from the rotational speed upper limit value information J2 stored in the storage device 54, and compared with the maximum engine rotational speed detected in step S160, a rotational speed excess determination is performed. Then, the process proceeds to step S180.

  In step S180, the driving situation on the travel road R is stored based on the determination result of the rotation speed excess determination. That is, if the maximum engine speed is equal to or less than the upper limit value of the engine speed, information indicating “no excess” as the engine speed excess determination result is stored in association with the traveling road R in the driving situation analysis information J4. Alternatively, if the maximum engine speed exceeds the rotation speed upper limit value, information indicating “exceeded” as the rotation speed excess determination result is stored in association with the traveling road R in the driving situation analysis information J4. Then, the process proceeds to step S190.

  In step S190, it is determined whether or not all the vehicle information J3 has been processed. If all the vehicle information J3 has been processed, it is determined that the analysis of the driving situation has been completed for all the roads on which the vehicle has traveled, and the process proceeds to step S200 (S190). If all processing is not performed, it is determined that the analysis of the driving situation has not been completed for all the roads on which the vehicle has traveled, and the process returns to step S120 (N in S190).

  In step S <b> 200, the map image P is displayed on the display device 56 based on the map information stored in the storage device 54. Then, the process proceeds to step S210.

  In step S210, one traveling road R is sequentially read from the head of the driving situation analysis information J4, and is superimposed on the road Rn on the map image P corresponding to the traveling road R, and is closer to the starting point along the road Rn. The trajectory line K is displayed on the display device 56 so as to extend from one end to the other end at a predetermined extension speed. The display color of the trajectory line K is a color according to the speed determination result on the travel road R, and the extension speed of the trajectory line K is the extension speed corresponding to the maximum travel speed on the travel road R. That is, when the speed excess determination result is “no excess”, the locus line K is displayed in black, and when “exceeded”, the locus line K is displayed in red. Further, when the maximum traveling speed is equal to or lower than a predetermined speed threshold (for example, 50 km / h), the locus line K is displayed to extend at the predetermined first extension speed V1, and when the maximum traveling speed exceeds the predetermined speed threshold, the locus line is displayed. K is displayed to extend at a second extension speed V2 that is faster than the first extension speed V1. Of course, the combination of black and red is an example, and other color combinations may be used. Then, the process proceeds to step S220.

  In step S220, on the traveling road R read in step S210, only when the speed determination result is “no excess” and the rotation speed excess determination result is “no excess”, that is, there is no speed excess and the engine speed exceeds. Only when there is no “eco-driving”, a predetermined eco-mark E (for example, shown in FIG. 9) is displayed on the display device 56 on or near the road Rn on the map image P corresponding to the traveling road R. Then, the process proceeds to step S230.

  In step S230, it is determined whether or not all of the traveling road R in the driving condition analysis information J4 has been processed (the locus line K is displayed). This flowchart is ended (Y in S230), and when all are not ended, the process returns to Step S210, and the reproduction of the traveling locus is continued (N in S230).

  Step S110 described above corresponds to the card processing unit that is the functional block described above, steps S120 to S190 correspond to the safe driving processing unit, and steps S200 to S230 correspond to the regeneration processing unit. The data processing unit is included in the function of reading the speed upper limit value information J1 and the rotation speed upper limit value information J2 in the safe driving processing unit. The image processing unit is included in a function of performing image display in the reproduction processing unit.

  In the flowchart described above, the processing configuration may be such that the eco mark display in step S220 is omitted. In step S210, the locus line K is displayed so as to extend from one end to the other end. However, the present invention is not limited to this, and the locus line K is temporarily displayed from one end to the other end. It may be a processing configuration.

  Next, an example of the operation (action) according to the present invention in the above-described driving situation analysis support device 50 will be described with reference to FIGS.

  The vehicle follows a travel route S (in order of road R47, road R34, road R24, road R18, road R17, road R33, road R42, road R43, road R49, road R55) shown on the map image P in FIG. The vehicle travels from the travel start point A to the travel end point B, and includes the travel position during travel and the vehicle state (travel speed and engine speed) when traveling in the travel position by the in-vehicle device T mounted on the vehicle. Vehicle information is recorded on the memory card C.

  After the memory card C is mounted on the support device 50, when a predetermined operation requesting execution of the travel locus reproduction process is input to the input device 55 of the support device 50, first, vehicle information is stored in the RAM 53 from the memory card C. J3 is copied (S110). And the road (traveling road R) where the vehicle traveled is specified from the traveling position of the vehicle information J3.

  Then, the road R47 is first identified as the traveling road R from the traveling position of the vehicle information J3 (S120). Then, the maximum traveling speed 30 km / h of the vehicle on the road R47 is detected (S130), and this is compared with the upper speed limit 50km / h on the road R47, and it is determined that the traveling speed on the road R47 is “no excess” (S140, S150). Further, the maximum engine speed 1500 rpm of the vehicle on the road R47 is detected (S160), and compared with the maximum engine speed 2000 rpm of the vehicle, it is determined that the engine speed of the road R47 is “no excess” (S160). S170, S180).

  Subsequently, the road R34 is specified as the road R, and the road R34 has a maximum traveling speed of 50 km / h and an upper speed limit of 50 km / h. Since the rotational speed is 1800 rpm and the rotational speed upper limit value is 2000 rpm, it is determined that the engine rotational speed is “no excess”. Subsequently, the road R24 is identified as the traveling road R. Since the road R24 has a maximum traveling speed of 60 km / h and a speed upper limit value of 50 km / h, it is determined that the traveling speed is “excess” and the maximum engine speed is reached. Since the upper limit of the engine speed is 2000 rpm at 2100 rpm, it is determined that the engine speed is “excess”. Subsequently, the road R18 is specified as the traveling road R. Since the road R18 has a maximum traveling speed of 50 km / h and a speed upper limit value of 30 km / h, it is determined that the traveling speed is “excess” and the maximum engine speed is reached. Since the rotation speed upper limit value is 2000 rpm at 1800 rpm, it is determined that the engine rotation speed is “no excess”. Thereafter, in the same manner, the road R55 is specified, and the speed excess determination and the engine speed excess determination on the road R55 are performed.

  When the analysis is completed for all the vehicle information J3 (Y in S190), the map image P shown in FIG. 3 is displayed on the display device 56 (S200).

  Next, a travel locus is displayed on the traveled road.

  First, a locus line is displayed on the road R47. At this time, on the road R47, the speed excess determination is “no excess” and the maximum travel speed (30 km / h) is equal to or less than the speed threshold (50 km / h), so the travel start point along the road R47 The black locus line K1 is displayed so as to extend from the one end close to A to the other end at the first extension speed V1 (S210). Further, since the speed excess determination is “no excess” and the rotation speed excess determination is “no excess”, the eco-mark E is displayed on the road R47 (S220) (FIG. 9).

  Next, a locus line is displayed on the road R34. At this time, in the road R34, the speed excess determination is “no excess” and the maximum traveling speed (50 km / h) is equal to or less than the speed threshold (50 km / h), so the road R34 is closer to the road R47. A black locus line K2 is displayed so as to extend from one end to the other end at the first extension speed V1 (S210). Further, since the speed excess determination is “no excess” and the rotation speed excess determination is “no excess”, the eco-mark E is displayed on the road R34 (S220) (FIG. 10).

  Next, a locus line is displayed on the road R24. At this time, in the road R24, the overspeed determination is “exceeded” and the maximum traveling speed (60 km / h) exceeds the speed threshold (50 km / h), so the road R34 is closer to the road R34. A red locus line K3 is displayed so as to extend from one end to the other end at the second extension speed V2 (S210). Further, since the speed excess determination is “excess” and the rotation speed excess determination is “excess”, the eco-mark E is not displayed on the road R24 (S220) (FIG. 11).

  Next, a locus line is displayed on the road R18. At this time, in the road R18, the speed excess determination is “exceeded” and the maximum traveling speed (50 km / h) is equal to or less than the speed threshold (50 km / h), so the road R18 is closer to the road R24. A red locus line K4 is displayed so as to extend from one end to the other end at the first extension speed V1 (S210). Further, since the speed excess determination is “excess” and the rotation speed excess determination is “no excess”, the eco-mark E is not displayed on the road R18 (S220) (FIG. 12).

  Thereafter, in the same manner, the trajectory lines K5 to K10 are displayed up to the travel end point B, and the reproduction of the travel trajectory is terminated (Y in S230) (FIG. 13).

  As described above, according to the present invention, the vehicle information J3 including the travel position of the vehicle and the vehicle state (travel speed and engine speed) when traveling in the travel position collected in the in-vehicle device T is stored in the RAM 53. And the CPU 51 displays a predetermined display color corresponding to the maximum traveling speed on the traveling road R on the traveling road R on the map image specified by the traveling position based on the vehicle information J3. Since the trajectory line K, which is a section of the travel trajectory, is sequentially displayed in time series, the trajectory line K can be displayed in time series in order to reproduce the travel route S of the vehicle with the actual travel route, The display color can be changed according to the vehicle situation in each locus line section. In the present embodiment, the display color when the traveling speed is equal to or lower than the predetermined speed upper limit value is determined as black, the display color when the traveling speed exceeds the upper limit value is determined as red, and each locus line K is determined according to the traveling speed. By displaying in different colors, it is possible to simultaneously grasp the driving situation along with the route traveled, and therefore it is possible to intuitively grasp the relationship between the traveling position of the vehicle and the traveling speed at the traveling position.

  The vehicle state includes the traveling speed of the vehicle, and the trajectory line K is moved from one end near the trajectory line K immediately before to the other end on the opposite side at a predetermined extension speed corresponding to the traveling speed. Since the display is expanded, the expansion speed of each locus line K can be changed according to the speed of the vehicle. In the present embodiment, the extension speed when the maximum traveling speed on the road R is equal to or lower than a predetermined speed threshold is defined as the first extension speed V1, and the extension speed when the speed exceeds the threshold is higher than the first extension speed V1. By defining the second extension speed V2 and displaying each locus line K by changing the extension speed according to the maximum traveling speed, it is possible to produce a more realistic driving feeling. The relationship with the traveling speed at the traveling position can be more intuitively grasped.

  Further, when the vehicle state satisfies a predetermined condition, a predetermined mark corresponding to the condition is displayed on the locus line K or in the vicinity thereof, so that the driving situation in the section is grasped by the mark. be able to. In the present embodiment, the maximum traveling speed is equal to or less than a predetermined speed upper limit value (that is, “no excess” in the overspeed determination) and the engine speed is equal to or lower than the predetermined speed upper limit value (that is, the engine speed is exceeded). When the determination satisfies “no excess”) and this condition is satisfied, a predetermined eco-mark E is displayed on or in the vicinity of the locus line K, so that the traveling road R on which the locus line K is displayed is displayed. The driving situation can be grasped at a glance, and therefore the relationship between the traveling position of the vehicle and the maximum traveling speed and the maximum engine speed at the traveling position can be more intuitively grasped.

  In the above-described embodiment, the extension speed of the locus line K is fixed by one set of the first extension speed V1 and the second extension speed V2. However, the present invention is not limited to this. In the traveling locus reproduction process, a plurality of reproduction modes having different reproduction speeds (for example, a low-speed reproduction mode, a normal reproduction mode, a high-speed reproduction mode, etc.) are provided, and in each reproduction mode, the first extension speed V1 and the second extension speed are provided. You may comprise so that reproduction speed may differ relatively between each reproduction modes, maintaining the relationship with V2. For example, the first extension speed V1 in the normal playback mode is 1.0 (reference value), the second extension speed V2 is 2.0, the first extension speed V1 in the low speed playback mode is 0.5, The extension speed V2 is set to 1.0, the first extension speed V1 in the high-speed playback mode is set to 2.0, and the second extension speed V2 is set to 4.0. Also, the number of playback modes is not limited to three, and may be determined as appropriate according to the configuration. In one mode, three or more extension speeds such as the first extension speed V1, the second extension speed V2, and the third extension speed V3 may be determined.

  Further, in the present embodiment, the trajectory line K is displayed for each road Rn on the map image P (the portion where there is no branch between the branch points). However, the present invention is not limited to this. Absent. For example, the entire road on the map image P is divided into unit distances (for example, 1 km), and each road is divided into roads. A speed upper limit value is determined for each of the roads. The segment roads may be identified from the segment roads, and the trajectory lines K for each segment road may be sequentially displayed in time series, and the unit for displaying the trajectory lines K is arbitrary as long as the object of the present invention is not violated. .

  Further, in the present embodiment, when the predetermined condition is satisfied, the eco mark E is displayed on or near the locus line K. However, other than this, for example, overspeed, rapid acceleration, sudden When conditions such as deceleration are defined and these conditions are satisfied, a speed excess mark, a sudden acceleration mark, a sudden deceleration mark, etc., which are determined in advance corresponding to the conditions, may be displayed. In this way, the driving situation can be grasped at a glance, and a dangerous driving situation may occur due to factors other than the driver, for example, when a sudden deceleration mark is displayed at the same location among a plurality of drivers. Therefore, it is possible to notify the driver of such a location in advance and call attention, thereby preventing an accident.

  In the present embodiment, the vehicle information J3 is transferred (copied) from the in-vehicle device T to the RAM 53 of the support device 50 using the memory card C. However, the present invention is not limited to this. The machine T and the support device 50 may be connected by wireless communication, and the vehicle information J3 may be transferred from the in-vehicle device to the RAM 53 of the support device 50 through the wireless communication. Alternatively, the CPU 51 directly accesses the vehicle information J3 of the memory card C attached to the support device 50 via the card I / F 57a without transferring the vehicle information J3 from the memory card C to the RAM 53 of the support device 50. Good. In this case, the memory card C corresponds to the vehicle information storage means in the claims.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

50 Driving condition analysis support device 51 CPU (traveling track reproduction means)
53 RAM (vehicle information storage means)
54 Storage device 56 Display device T In-vehicle device (external device)
P Map image K Trajectory line (section of travel trajectory)
Rn road (location on the map image)
E Eco Mark (Mark)
J1 Speed upper limit information J2 Speed upper limit information J3 Vehicle information J4 Driving condition analysis information V1 First extension speed (extension speed)
V2 Second extension speed (extension speed)

Claims (3)

A driving situation analysis support device that displays a running locus of a vehicle on a map image,
Vehicle information storage means for storing vehicle information, which is collected in an external device and includes vehicle travel position and vehicle state when traveling in the travel position;
Based on the vehicle information stored in the vehicle information storage means, each section of the traveling locus is displayed in a predetermined display color corresponding to the vehicle state at a position on the map image specified by the traveling position. A driving condition analysis support apparatus, comprising: a traveling locus reproduction means that sequentially displays in time series. The vehicle state includes a traveling speed of the vehicle,
The travel locus reproducing means is configured to extend and display the section of the travel locus from one end near the immediately preceding section to the other end on the opposite side at a predetermined extension speed corresponding to the traveling speed. The driving condition analysis support device according to claim 1, wherein   When the vehicle state satisfies a predetermined condition, the traveling locus reproduction means is configured to display a mark predetermined corresponding to the condition on or near the section of the traveling locus. The driving state analysis support apparatus according to claim 1 or 2, characterized in that

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