JP6482003B2 - Vehicle position display program, apparatus, and method - Google Patents

Description

  The present invention relates to a vehicle position display program, a vehicle position display device, and a vehicle position display method.

  2. Description of the Related Art Conventionally, there is a technique for displaying a traffic situation so that a traffic situation can be visually grasped by displaying a travel locus of a vehicle on a road map.

  For example, a technique has been proposed in which statistical traffic jam information data obtained as a result of statistically processing past traffic jam information is stored in a road map memory in association with days of the week and time zones. In this technique, when a traffic jam information display mode is instructed and a day of the week and a time zone are designated, statistical traffic jam information related to the designated day of the week and time zone is read out. Based on the read traffic jam information, the traffic jam mark is superimposed and displayed on the road map along the road in the vicinity of the corresponding road. This traffic jam mark is displayed in a display format such as changing the display color according to the degree of traffic jam or displaying a traffic color mark with a specific color or shape to distinguish between real-time traffic jam information or statistical information Can be changed.

  In addition, a guidance route to the designated destination is searched, based on the traffic information stored in the storage means, a degree of congestion with different temporal factors of the searched guidance route is derived, along with the guidance route, Techniques have been proposed for displaying the degree of congestion with different temporal factors for the guidance route. The display of the degree of congestion is expressed by one or both of a color and a pattern corresponding to the degree of congestion.

  In addition, a technique has been proposed in which a road traffic information receiver receives road congestion information indicating the congestion distance and the degree of congestion on a monitored road in each area that is preliminarily classified from the outside, and calculates the degree of road congestion. In this technique, the degree of road congestion is calculated for each area in consideration of the total length of the monitoring road in the area, the congestion distance, and the degree of congestion. Further, based on the degree of road congestion, the hue (degree of redness) of the map image of each region is determined, and the map is displayed with the hue so that the road congestion state can be identified.

JP 09-113290 A JP 2006-078293 A Japanese Patent Laid-Open No. 10-283589

  The information to be grasped as the traffic situation is not limited to the degree of congestion as in the prior art. For example, there may be a case where it is desired to grasp a traveling state of a vehicle that has passed a specific area in a peripheral area including a specific area such as a newly opened road section or a closed road section.

  An object of the present invention is to facilitate identification of a vehicle that has passed a specific area.

  The present invention, as one aspect, accepts designation of a geographical area, identifies a vehicle group in which a traveling history of traveling in the accepted geographic area is stored, and among the identified vehicle group, One or a plurality of vehicles that have passed a specific area included in the geographical area are identified. And based on the said driving | running history, the position of the said vehicle group within the said geographical area | region is displayed using a mark. At this time, display control is performed so that a mark to be displayed corresponding to the specified position of the one or more vehicles is different from a mark to be displayed corresponding to the position of another vehicle.

  As one aspect, there is an effect that it is possible to easily identify a vehicle that has passed a specific area.

It is a functional block diagram which shows schematic structure of the vehicle position display apparatus which concerns on 1st Embodiment. It is a figure which shows an example of a driving locus database (DB). It is a figure which shows an example of the designation | designated information in 1st Embodiment. It is a figure which shows an example of the display object travel locus | trajectory list | wrist in 1st Embodiment. It is a figure for demonstrating a four-sided mesh. It is a figure for demonstrating determination of dot size. It is an image figure which shows an example of the display screen in 1st Embodiment. It is a block diagram which shows schematic structure of the computer which functions as a vehicle position display apparatus which concerns on 1st Embodiment. It is a flowchart which shows an example of the vehicle position display process in 1st Embodiment. It is a flowchart which shows an example of the animation display process in 1st Embodiment. It is a figure which shows an example of the designation | designated information in 2nd Embodiment. It is a figure which shows an example of the display object travel locus | trajectory list | wrist in 2nd Embodiment. It is an image figure which shows an example of the display screen in 2nd Embodiment. It is a flowchart which shows an example of the vehicle position display process in 2nd Embodiment. It is a functional block diagram which shows schematic structure of the vehicle position display apparatus which concerns on 3rd Embodiment. It is a figure which shows an example of the designation | designated information in 3rd Embodiment. It is a figure for demonstrating a display color pattern. It is a figure for demonstrating determination of a display color. It is an image figure which shows an example of the display screen in 3rd Embodiment. It is a block diagram which shows schematic structure of the computer which functions as a vehicle position display apparatus which concerns on 3rd Embodiment. It is a flowchart which shows an example of the vehicle position display process in 3rd Embodiment. It is a flowchart which shows an example of the animation display process in 3rd Embodiment. It is an image figure which shows an example of the display screen in 4th Embodiment. It is a flowchart which shows an example of a mode switching process.

  Hereinafter, an example of an embodiment relating to the present invention will be described in detail with reference to the drawings.

<First Embodiment>
In the first embodiment, a case will be described in which a mark displayed corresponding to the position of one or a plurality of vehicles that have passed a specific section is displayed differently from a mark displayed corresponding to the position of another vehicle group. .

  As illustrated in FIG. 1, the vehicle position display device 10 according to the first embodiment includes a reception unit 11, an extraction unit 12, a specification unit 13, and a display control unit 14. Further, the vehicle position display device 10 reads information on a travel locus database (DB) 31 and a digital road map (DRM) 32 stored in an external storage device. The travel locus DB 31 and the DRM 32 are not limited to being stored in the external storage device, and may be stored in an internal disk of the vehicle position display device 10 or a portable memory such as a USB memory.

  The DRM 32 includes information representing the road network by nodes and links. The node indicates a node on the road network expression such as a junction, an interchange, or an intersection, and the link indicates a road section between the nodes. A unique identification number (node number, link number) is assigned to each node and link. The DRM 32 also includes latitude and longitude information indicating the positions of nodes and links on the road map, and name information such as junctions, interchanges, and intersections corresponding to each node. In addition, the road map included in the DRM 32 is managed in units of a secondary mesh obtained by dividing the entire area included in the DRM 32 into predetermined ranges (for example, 10 km square), and a secondary mesh number is assigned to each secondary mesh. Has been. In addition, the DRM 32 includes information included in a general digital road map.

  The travel locus DB 31 stores travel locus information indicating a travel locus for each vehicle. The travel locus information includes, for example, vehicle position information (latitude and longitude), positioning time, and vehicle identification information (vehicle ID) measured at predetermined positioning intervals by a GPS (Global Positioning System) mounted on the vehicle. It is obtained by processing positioning information including it.

  An example of processing performed to process the positioning information to obtain travel locus information will be described. Here, a case will be described in which an information processing apparatus (not shown) acquires positioning information and converts the acquired positioning information into travel locus information. The information processing apparatus classifies the positioning information for each vehicle ID and rearranges the positioning information in order of the positioning time to create a positioning information string. Based on the position information and the positioning time included in each positioning information, the information processing apparatus detects and detects a location indicating that the vehicle has stopped for a predetermined time (for example, 5 minutes) in the positioning information string. Divide the positioning information sequence at the location. The information processing apparatus takes each of the divided positioning information strings as one trip (a series of traveling trajectories), assigns an identification number (trip number) to each trip, and assigns each trip to the positioning information included in the same trip. Give a number.

  Also, the information processing apparatus associates the position indicated by the position information (latitude and longitude) included in the positioning information on the DRM 32, and the latitude and longitude so that the position can be a position where a vehicle such as a road can exist. To correct. Further, the information processing apparatus acquires the secondary mesh number of the secondary mesh of the DRM 32 including the position indicated by the corrected latitude and longitude, and the link number of the link including the position.

  The information processing apparatus stores the information included in the positioning information and the information acquired by the above processing in, for example, a travel locus DB 31 as illustrated in FIG. In the example of the travel locus DB 31 in FIG. 2, each row (each record) corresponds to one travel locus information. Each travel locus information includes items of “vehicle ID”, “trip number”, “secondary mesh number”, “unit time start date / time”, “latitude”, “longitude”, and “DRM link number”. Each item stores information corresponding to the information included in the positioning information and the information acquired by the above processing.

  The “unit time start date and time” is a date and time indicating the start time point for each unit time (for example, 1 second) of an animation display process to be described later. When the positioning interval at which the position of the vehicle is positioned is set as the unit time, the positioning time can be used as the “unit time start date and time”. Note that the unit time may be longer than the positioning interval, and the obtained positioning information may be thinned out in correspondence with the unit time interval to be converted into travel locus information.

  Designation information 21 designated by the user is input to the vehicle position display device 10. The designation information 21 can be designated by the user by operating the input device (not shown).

  As shown in FIG. 3, the designation information 21 includes display target designation information 22 for designating a display target range for animation display, which will be described later, and specific section designation information 23 for designating a specific section.

  The display target designation information 22 includes information for designating a target area (geographic area) and a target period (time range) as a display target range. In the example of FIG. 3, the secondary mesh number in the DRM 32 is designated as the target area by the item “place”. A plurality of secondary mesh numbers can be designated. The designation of the target area is not limited to the designation of the secondary mesh number, and may be designated by other methods such as designation by latitude and longitude. The target period shows an example in which the date and time indicating the start and end are specified by the items “start date and time” and “end date and time”.

  Moreover, in the example of FIG. 3, the example which designates the names of two arbitrary points, such as a junction, an interchange, and an intersection, is shown as the specific area designation information 23, for example. The designation of the specific section is not limited to the designation by the names of two points, but may be designated by using latitude and longitude, or may be designated by using a node number or link number in the DRM 32.

  The accepting unit 11 accepts the designation information 21 input to the vehicle position display device 10 and stores the accepted designation information 21 in a predetermined storage area.

  The extraction unit 12 refers to the display target designation information 22 included in the designation information 21 and the target area designated by the display target designation information 22 among the travel locus information stored in the travel locus DB 31 read from the external storage device. And travel locus information corresponding to the target period is extracted. Specifically, in the travel locus DB 31, the extraction unit 12 extracts travel locus information whose “secondary mesh number” matches any of the secondary mesh numbers designated by “location” of the display target designation information 22. Extract. The extraction unit 12 further includes a travel locus in which the “unit time start date and time” is included in the target period specified by the “start date and time” and the “end date and time” of the display target designation information 22 in the extracted travel locus information. Extract information.

  The extraction unit 12 registers the finally extracted travel locus information in the display target travel locus list 24. FIG. 4 shows an example of the display target travel locus list 24. The data structure of the display target travel locus list 24 is substantially the same as the data structure of the travel locus DB 31 shown in FIG. 2, except that the display target travel locus list 24 includes an item “specific vehicle flag”. The “specific vehicle flag” will be described later.

  The specifying unit 13 specifies a vehicle (hereinafter referred to as “specific vehicle”) that has passed through a specific section included in the target region. Specifically, the specifying unit 13 specifies, from information included in the DRM 32, a node corresponding to the name between two points specified by the specific section specifying information 23 included in the specifying information 21. The specifying unit 13 searches for a route between the specified nodes based on the node and link information included in the DRM 32. As a route search method, a general route search method can be used. The route searched here is a “specific section”. The specifying unit 13 extracts information on “vehicle ID” of the travel track information in which “DRM link number” matches the link number of any link included in the searched route in the display target travel track list 24. The vehicle indicated by the vehicle ID extracted here is a “specific vehicle”. Therefore, the specifying unit 13 turns ON the “specific vehicle flag” of the travel track information that matches the vehicle ID extracted from the “vehicle ID” in order to represent the travel track information of the specific vehicle in the display target travel track list 24 ( “1”). The “specific vehicle flag” in the travel locus information of vehicles other than the specific vehicle is set to OFF (blank).

  Based on the display target travel locus list 24, the display control unit 14 displays on the road map indicated by the DRM 32 marks corresponding to the number of vehicles other than the specific vehicle and the specific vehicle for each unit time at each position in the target region. Control is performed so that the superimposed display screen is displayed. The display control part 14 implement | achieves an animation display by switching and displaying a mark for every position for every unit time.

  Specifically, as shown in FIG. 5, the display control unit 14 divides the display area when the target area is displayed on the screen into four-sided mesh 71 having a predetermined size. One four-sided mesh 71 corresponds to each position in the target region, and one four-sided mesh 71 corresponds to one mark. In consideration of this point, the predetermined size of the four-sided mesh 71 is set to an appropriate value according to the purpose of analysis, the number of travel locus information, the size of the target area (wide area or details), and the like. The display control unit 14 specifies position information of each four-sided mesh 71. The position information of the four-sided mesh 71 can be specified by, for example, the latitude and longitude indicating the position of the upper left corner of the four-sided mesh 71.

  The display control unit 14 specifies the range indicated by each four-sided mesh 71 based on the positional information and size of each four-sided mesh 71, and indicates the number of specific vehicles that have entered the range indicated by each four-sided mesh 71 for each unit time. Tally. Specifically, in the display target travel locus list 24, the display control unit 14 includes the positions indicated by “latitude” and “longitude” in the ranges indicated by the respective four-side meshes 71 when the “specific vehicle flag” is ON. , Traveling locus information whose “unit time start date and time” matches the corresponding unit time is counted. As shown in FIG. 6, the display control unit 14 determines the size of the mark according to the number of counted travel locus information, that is, the number of specific vehicles that have entered the range indicated by each four-sided mesh 71 in the corresponding unit time. To decide. In the present embodiment, as shown in FIG. 6, a case where a mark is a dot will be described. Similarly, for each vehicle other than the specific vehicle, the display control unit 14 counts the number of vehicles other than the specific vehicle that have entered the range indicated by each four-sided mesh 71 every unit time, and the dot size according to the number of vehicles. To decide.

  Here, when the animation is displayed, a dot indicating the vehicle group of the specific vehicle and a dot indicating the vehicle group other than the specific vehicle so that the vehicle group of the specific vehicle and the vehicle group other than the specific vehicle can be easily identified. Thus, the display colors are determined to be different. In the example of FIG. 6, the dot which shows the vehicle group of a specific vehicle is shown as white, and the dot which shows vehicle groups other than a specific vehicle is determined as black.

  For each unit time within the target period, the display control unit 14 sets a dot indicating a vehicle group of the specific vehicle and a dot indicating a vehicle group other than the specific vehicle for all the four-sided meshes 71 included in the target region. Determine the size and display color. The display control unit 14 associates the unit time and the position information of the four-sided mesh 71 with the size and display color of each of the dots indicating the vehicle group of the determined specific vehicle and the dots indicating the vehicle group other than the specific vehicle, Store in a predetermined area.

  When the determination of the dot size and the display color is all completed, the display control unit 14 performs control so that a display screen 80 as shown in FIG. 7 is displayed on the display device (not shown). In the example of FIG. 7, the display screen 80 includes an animation reproduction area 81 where an animation is reproduced, an information display area 82 where information such as a display target range and a specific section is displayed, and a legend used in the animation. And a legend display area 83 in which is displayed. The display screen 80 also includes a playback command 84 that is operated by the user when controlling the playback of the animation. The reproduction command 84 can include a reproduction button, a pause button, a slide bar for arbitrarily selecting a unit time (frame) to be displayed in the animation reproduction area 81, and the like.

  Specifically, the display control unit 14 specifies a unit time within the target period corresponding to the position of the slide bar included in the reproduction command 84. The display control unit 14 displays the size and display of dots indicating the vehicle group of the specific vehicle determined for each four-sided mesh 71 stored in association with the specified unit time, and dots indicating the vehicle group other than the specific vehicle. Get the color. Further, the display control unit 14 acquires information on nodes and links included in the target area from the DRM 32 and develops a road map in the animation reproduction area 81. And the display control part 14 superimposes the dot 85 which shows the vehicle group of the specific vehicle represented with the acquired size and display color, and the dot 86 which shows vehicle groups other than a specific vehicle on the developed road map. Since the dot 85 indicating the vehicle group of the specific vehicle and the dot 86 indicating the vehicle group other than the specific vehicle have different display colors, the specific vehicle can be easily identified on the display screen 80.

  In addition, when the playback button of the playback command 84 is pressed, the display control unit 14 displays the dot size and display determined for the next unit time each time a predetermined one frame display time elapses. Based on the color, the dot superimposed on the road map is changed. Therefore, the time change in the number of vehicles per unit time for each four-sided mesh 71 is displayed as an animation in a state in which the specific vehicle and other than the specific vehicle are identified. By this animation display, it is possible to simply express the movement situation of the vehicle. Note that the animation reproduction speed can be adjusted by making it possible to arbitrarily change the display time for one unit time (frame).

  In addition, the display control part 14 is totaling the number about each of the specific vehicle and vehicles other than a specific vehicle about each four side mesh 71 for every unit time. Therefore, for one four-sided mesh 71, both a dot 85 indicating a vehicle group of a specific vehicle and a dot 86 indicating a vehicle group other than the specific vehicle may be displayed. In this case, the display control unit 14 synthesizes the dot 85 indicating the vehicle group of the specific vehicle and the dot 86 indicating the vehicle group other than the specific vehicle and displays them in one four-sided mesh 71. For example, the right half of the dot 85 indicating the vehicle group of the specific vehicle and the left half of the dot 86 indicating the vehicle group other than the specific vehicle can be combined and displayed. Further, the dot 85 indicating the vehicle group of the specific vehicle may be displayed with priority over the dot 86 indicating the vehicle group other than the specific vehicle. For example, only one dot 85 indicating a vehicle group of a specific vehicle is displayed on one four-sided mesh 71, or a dot 85 indicating a vehicle group of the specific vehicle is superimposed on a dot 86 indicating a vehicle group other than the specific vehicle. Can be displayed.

  The vehicle position display device 10 can be realized by, for example, a computer 40 shown in FIG. The computer 40 includes a CPU 41, a memory 42 as a temporary storage area, and a nonvolatile storage unit 43. The computer 40 includes an input / output interface (I / F) 44 to which an input / output device 48 such as a display device and an input device is connected. The computer 40 also includes a read / write (R / W) unit 45 that controls reading and writing of data with respect to the recording medium 49, and a network I / F 46 connected to a network such as the Internet. The CPU 41, the memory 42, the storage unit 43, the input / output I / F 44, the R / W unit 45, and the network I / F 46 are connected to each other via a bus 47.

  The storage unit 43 can be realized by a hard disk drive (HDD), a solid state drive (SSD), a flash memory, or the like. A storage unit 43 as a storage medium stores a vehicle position display program 50 for causing the computer 40 to function as the vehicle position display device 10. In addition, the storage unit 43 includes a designation information storage area 61 in which the designation information 21 is stored, and a display target travel locus information storage area 62 in which travel locus information constituting the display target travel locus list 24 is stored.

  CPU41 reads the vehicle position display program 50 from the memory | storage part 43, expand | deploys to the memory 42, and performs the process which the vehicle position display program 50 has one by one. Further, the CPU 41 reads display target travel locus information from the display target travel locus information storage area 62 and develops the display target travel locus list 24 in the memory 42.

  The vehicle position display program 50 includes a reception process 51, an extraction process 52, a specification process 53, and a display control process 54. The CPU 41 operates as the reception unit 11 illustrated in FIG. 1 by executing the reception process 51. Further, the CPU 41 operates as the extraction unit 12 illustrated in FIG. 1 by executing the extraction process 52. Further, the CPU 41 operates as the specifying unit 13 illustrated in FIG. 1 by executing the specifying process 53. Further, the CPU 41 operates as the display control unit 14 shown in FIG. 1 by executing the display control process 54. As a result, the computer 40 that has executed the vehicle position display program 50 functions as the vehicle position display device 10.

  The function realized by the vehicle position display program 50 can be realized by, for example, a semiconductor integrated circuit, more specifically, an ASIC (Application Specific Integrated Circuit).

  Next, the operation of the vehicle position display device 10 according to the first embodiment will be described. The traveling locus DB 31 stores a plurality of traveling locus information obtained by processing positioning information acquired from a plurality of vehicles. In this state, when the designation information 21 is input to the vehicle position display device 10, the vehicle position display process shown in FIG. 9 is executed in the vehicle position display device 10. The vehicle position display process executed in the vehicle position display device 10 is an example of the vehicle position display method of the present invention.

  In step S11 of the vehicle position display process shown in FIG. 9, the receiving unit 11 receives the designation information 21 input to the vehicle position display device 10, and stores the received designation information 21 in a predetermined storage area.

  Next, in step S12, the extraction unit 12 reads the travel locus DB 31 from the external storage device. And the extraction part 12 refers to the display object designation | designated information 22 contained in the designation | designated information 21, Out of the driving | running track information memorize | stored in driving | running locus DB31, it is in the object area | region and object period designated by the display object designation | designated information 22. Corresponding travel locus information is extracted. Then, the extracting unit 12 registers the extracted travel locus information in the display target travel locus list 24. Note that the “specific vehicle flag” in the display target travel locus list 24 is set to OFF (blank) as an initial value.

  Next, in step S <b> 13, the specifying unit 13 specifies from the information included in the DRM 32 the node corresponding to the name between the two points specified by the specific section specifying information 23 included in the specifying information 21. The specifying unit 13 searches for a route between the specified nodes based on the node and link information included in the DRM 32. The specifying unit 13 acquires from the DRM 32 each of the link numbers of all the links included in the searched route.

  Next, in step S14, the identifying unit 13 determines that the “DRM link number” in the display target travel locus list 24 matches the “vehicle ID” of the travel locus information that matches any of the link numbers acquired in step S13. Extract information. And the specific | specification part 13 sets "specific vehicle flag" of the driving | running | working locus | trajectory information in which the "vehicle ID" corresponds to vehicle ID extracted in the display object driving | running | working locus | trajectory list 24 to ON ("1").

  Next, in step S20, the display control unit 14 executes the animation display process based on the display target travel locus list 24 and the DRM 32, and the vehicle position display process ends.

  Next, the animation display process executed in step S20 of the vehicle position display process (FIG. 9) will be described with reference to FIG.

  In step S <b> 21 of the animation display process illustrated in FIG. 10, the display control unit 14 divides the target region into a plurality of four-sided meshes 71. Then, the display control unit 14 acquires, for example, the latitude and longitude indicating the position of the upper left corner of the four-sided mesh 71 as the position information of each four-sided mesh 71.

  Next, in the loop process of step S22, the display control unit 14 sets each unit time from the start date and time to the end date and time of the target period one by one, and executes the loop process of step S23. In the loop process of step S23, the display control unit 14 sets each of all the four-sided meshes 71 in the target region as a processing target one by one, and executes the following processes of steps S24 and S25.

  In step S24, the display control unit 14 specifies a range indicated by the four-sided mesh 71 to be processed based on the position information and the size of the four-sided mesh 71 to be processed. The number of specific vehicles that have entered the range indicated by 71 is totaled. Similarly, the display control unit 14 totals the number of vehicles other than the specific vehicle that have entered the range indicated by the four-side mesh 71 to be processed in the unit time to be processed. Whether it is a specific vehicle or a specific vehicle is determined based on the “specific vehicle flag” in the display target travel locus list 24.

  Next, in step S25, the display control unit 14 sets the size of the dot 85 indicating the vehicle group of the specific vehicle displayed on the four-side mesh 71 to be processed in the unit time to be processed according to the total number of specific vehicles to be processed. decide. Similarly, the display control unit 14 sets the size of the dot 86 indicating the vehicle group other than the specific vehicle displayed on the four-side mesh 71 to be processed in the unit time to be processed in accordance with the number of vehicles other than the specific vehicle that has been counted. decide. Moreover, the display control part 14 determines the display color of a dot according to the dot 85 which shows the vehicle group of a specific vehicle, or the dot 86 which shows vehicle groups other than a specific vehicle.

  When all the loop processing in step S23 is completed, and when the loop processing in step S22 is completed, the processing proceeds to step S26.

  In step S26, the display control unit 14 performs control so that a display screen 80 as shown in FIG. 7 is displayed on the display device. Further, the display control unit 14 specifies a target unit time to be displayed in the animation reproduction area 81 in accordance with the operation of the reproduction command 84. And the display control part 14 superimposes and displays the dot represented with the size and display color which were matched and memorize | stored in the identified unit time on a road map. The display control unit 14 realizes animation display by changing the display of the dots of each four-sided mesh 71 each time the unit time to be displayed changes.

  As described above, according to the vehicle position display device according to the first embodiment, the vehicle that has passed the specific section is specified as the specific vehicle, and the travel locus information of the specific vehicle in the display target range (location and period) The flag which shows that it is the travel locus information of a specific vehicle is raised. When displaying the travel locus information of the display target range, the specific vehicle can be easily identified by identifying the specific vehicle and other than the specific vehicle by using the flag and making the marks different from each other. .

  Further, according to the first embodiment, a mark of a size corresponding to the number of vehicles that have entered the four-side mesh 71 of a predetermined size every unit time is displayed for each four-side mesh 71, and the unit time is changed every moment, The mark displayed for each four-sided mesh 71 is changed. Thereby, the animation display which shows the movement condition of a vehicle simply can be implement | achieved. In this way, by displaying marks according to the number of vehicles, it is possible to animate and display information by bundling the amount of information, so it is not possible to grasp when analyzing the traveling trajectory of each vehicle. Trends in traffic conditions can be visualized. In particular, in the present embodiment, since the specific vehicle and other than the specific vehicle are displayed so as to be identifiable, it is possible to grasp information such as what route the specific vehicle that has passed through the specific section has selected afterwards, This information is useful when determining whether or not the road is being used effectively.

  In addition, although 1st Embodiment demonstrated the case where the size of the mark (dot) to display was changed according to the vehicle number with respect to each four-sided mesh 71 for every unit time, it is not limited to this. For example, brightness and saturation may be changed according to the number of vehicles. Moreover, although 1st Embodiment demonstrated the case where the display color was changed with the mark which shows the vehicle group of a specific vehicle, and the mark which shows vehicle groups other than a specific vehicle, it is not limited to this. For example, the specific vehicle and other than the specific vehicle may be identified by changing the shape of the mark between them.

  Moreover, although 1st Embodiment demonstrated the case where the specific area which is the path | route between the two designated points was used as an example of the specific area | region in this invention, it is not limited to this. For example, an area designated by latitude and longitude may be designated as a specific area. In this case, it may be determined whether or not the vehicle has passed through the specific area depending on whether the latitude and longitude included in the travel locus information are included in the specified specific area.

Second Embodiment
In the second embodiment, a case will be described in which the positions of a group of vehicles that have passed through a specific section are displayed so as to be comparable in different periods. In addition, in 2nd Embodiment, about the part similar to the vehicle position display apparatus 10 which concerns on 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  As illustrated in FIG. 1, the vehicle position display device 10A according to the second embodiment includes a reception unit 11, an extraction unit 12A, a specification unit 13A, and a display control unit 14A.

  As shown in FIG. 11, designation information 21 </ b> A including display target designation information 22 </ b> A and specific section designation information 23 is input to the vehicle position display device 10 </ b> A. Unlike the case of the first embodiment, the display target designation information 22A includes two designations with different designations of the target period. The designation of the target area (location) in the two designations is the same. The specific section designation information 23 is the same as that in the first embodiment.

  The extraction unit 12A extracts the travel trajectory information to be displayed for each of the two designations included in the display target designation information 22A, as in the first embodiment. The extraction unit 12A registers the traveling locus information extracted based on the first designation in the display target traveling locus list 24A1, and extracts the traveling locus information extracted based on the second designation on the display target traveling locus list. Register with 24A2. As shown in FIG. 12, the display target travel locus lists 24A1 and 24A2 include an item “comparison flag” in addition to the items of the display target travel locus list 24 of the first embodiment. The “comparison flag” will be described later.

  Of the two designations with different target periods, it can be determined based on the information of “unit time start date and time” which of the designations is the travel locus information extracted. Therefore, the display target travel locus list 24A1 and the display target travel locus list 24A2 may be separated into one display target travel locus list 24A. In the present embodiment, in order to simplify the description, a case will be described in which the display target travel locus list 24A1 and the display target travel locus list 24A2 are separated.

  The specifying unit 13A extracts the vehicle ID of the specific vehicle based on the display target travel track list 24A1 and extracts the vehicle ID of the specific vehicle in the display target travel track list 24A1 as in the specific unit 13 in the first embodiment. “Specific vehicle flag” is set to ON (“1”).

  Further, the specifying unit 13A specifies the travel locus information in the display target travel locus list 24A2 for the specific vehicle identified based on the display target travel locus list 24A1. This is for comparing the position of the vehicle group of the specific vehicle in the target period specified in the first case of the display target specifying information 22A and the target period specified in the second case. Specifically, the specifying unit 13A sets the “comparison flag” of the travel track information in which “vehicle ID” matches the vehicle ID of the specific vehicle specified based on the display target travel track list 24A1 in the display target travel track list 24A2. "Is set to ON (" 1 "). In the display target travel locus list 24A2, the “comparison flag” of the travel locus information of vehicles other than the specific vehicle specified based on the display target travel locus list 24A1 is set to OFF (blank).

  Based on the display target travel locus list 24A1, the display control unit 14A responds to the number of specific vehicles that have entered the range indicated by each four-sided mesh 71 for each unit time, similarly to the display control unit 14 in the first embodiment. Determine the size of the dots. Similarly, the display control unit 14A determines the dot size according to the number of vehicles other than the specific vehicle that has entered the range indicated by each four-sided mesh 71 for each unit time.

  The display control unit 14A similarly determines the dot size according to the number of specific vehicles and the dot size according to the number of vehicles other than the specific vehicle in the display target travel locus list 24A2. At this time, the display control unit 14A determines whether the vehicle is a specific vehicle or a vehicle other than the specific vehicle based on the “comparison flag” in the display target travel locus list 24A2. Also in the animation display based on the travel trajectory information of the display target travel trajectory list 24A2, the dots indicating each are determined to have different display colors so that the vehicle group of the specific vehicle and the vehicle group other than the specific vehicle can be easily identified. In addition, the display colors of the dots 85 indicating the vehicle group of the specific vehicle displayed based on the respective travel trajectory information in the display target travel trajectory lists 24A1 and 24A2 are the same display color. This facilitates comparison of specific vehicles in different periods. The same applies to the display colors of dots indicating vehicle groups other than the specific vehicle.

  When the determination of the dot size and display color of each four-sided mesh 71 for each unit time is completed based on each of the display target travel locus lists 24A1 and 24A2, the display control unit 14A displays a display screen as shown in FIG. Control is performed so that 80A is displayed on the display device. In the example of FIG. 13, the display screen 80A includes animation reproduction areas 81A1 and 81A2, an information display area 82A, a legend display area 83, and a reproduction command 84.

  In the animation reproduction area 81A1, an animation in which dots based on the traveling locus information in the display target traveling locus list 24A1 are displayed is reproduced. In the animation reproduction area 81A2, an animation in which dots are displayed based on the traveling locus information of the display target traveling locus list 24A2 is reproduced. The animation display method in each of the animation reproduction areas 81A1 and 81A2 is the same as that in the first embodiment. The target unit time for displaying dots in each of the animation reproduction areas 81A1 and 81A2 is synchronized so that the elapsed time from the start date / time of the target period is the same.

  Similar to the information display area 82 of the first embodiment, information such as a display target range and a specific section is displayed in the information display area 82A. Information on the target period is displayed adjacent to the corresponding animation playback area 81A1 or 81A2.

  The vehicle position display device 10A can be realized by a computer 40 shown in FIG. 8, for example. The storage unit 43 of the computer 40 stores a vehicle position display program 50A for causing the computer 40 to function as the vehicle position display device 10A.

  The CPU 41 reads the vehicle position display program 50A from the storage unit 43 and develops it in the memory 42, and sequentially executes the processes included in the vehicle position display program 50A. The vehicle position display program 50A includes a reception process 51, an extraction process 52A, a specifying process 53A, and a display control process 54A. The CPU 41 operates as the extraction unit 12A illustrated in FIG. 1 by executing the extraction process 52A. Further, the CPU 41 operates as the specifying unit 13A illustrated in FIG. 1 by executing the specifying process 53A. Further, the CPU 41 operates as the display control unit 14A illustrated in FIG. 1 by executing the display control process 54A. The reception process 51 is the same as the vehicle position display program 50 in the first embodiment. Thereby, the computer 40 which executed the vehicle position display program 50A functions as the vehicle position display device 10A.

  The function realized by the vehicle position display program 50A can be realized by, for example, a semiconductor integrated circuit, more specifically, an ASIC or the like.

  Next, the operation of the vehicle position display device 10A according to the second embodiment will be described. The traveling locus DB 31 stores a plurality of traveling locus information. In this state, when the designation information 21A is input to the vehicle position display device 10A, the vehicle position display process shown in FIG. 14 is executed in the vehicle position display device 10A. The vehicle position display process executed in the vehicle position display device 10A is an example of the vehicle position display method of the present invention. Moreover, about the vehicle position display process in 2nd Embodiment, about the step which becomes the process similar to the vehicle position display process in 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The process proceeds to step S15 through steps S11 to S14 of the vehicle position display process shown in FIG. In step S15, the specifying unit 13A turns ON the “comparison flag” of the travel track information in which “vehicle ID” matches the vehicle ID of the specific vehicle extracted in step S14 in the display target travel track list 24A2. )).

  Next, in step S20, the display control unit 14A executes the animation display process based on the display target travel locus lists 24A1 and 24A2 and the DRM 32, and the vehicle position display process ends. In the animation display process in the second embodiment, the animation display process (FIG. 10) in the first embodiment shown in FIG. 10 may be executed using each of the display target travel locus lists 24A1 and 24A2. In step S24, when counting the number of vehicles that have entered the range indicated by the four-side mesh 71 to be processed for the unit time to be processed based on the display target travel locus list 24A2, the specific vehicle or the specific vehicle Is determined based on the “comparison flag”.

  As described above, according to the vehicle position display device according to the second embodiment, in addition to the effects of the first embodiment, it is possible to easily compare the travel trajectories of specific vehicles in different periods. For example, a section of a newly opened road is set as a specific section, and a period before the section is opened is designated as a comparison target period. As a result, the vehicle passing through the newly opened road can grasp information such as which route the vehicle was traveling before the opening and how the surrounding traffic situation has changed.

  In the second embodiment, the case has been described in which the display target designation information 22A input to the vehicle position display device 10A includes two designations having different target periods. However, three or more designations may be included. In this case, the vehicle that has passed through the specific section in the target period specified by one is specified as a specific vehicle, and the travel locus information of the specific vehicle is specified from each of the target periods specified elsewhere, A comparison flag may be set. Then, the display screen 80A including the animation reproduction area 81A having three or more screens may be displayed.

  In addition, when the display target designation information 22A input to the vehicle position display device 10A includes only one designation, the process of the first embodiment is executed, and when two or more designations are included, The process may be branched so as to execute the process of the second embodiment.

<Third Embodiment>
In the third embodiment, a case will be described in which cumulative changes in traffic volume are displayed as animations. Note that in the third embodiment, the same portions as those of the vehicle position display device 10 according to the first embodiment or the vehicle position display device 10A according to the second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. To do.

  As shown in FIG. 15, the vehicle position display device 10B according to the third embodiment includes a reception unit 11, an extraction unit 12A, and a display control unit 14B.

  Display target designation information 22A as shown in FIG. 16 is input to the vehicle position display device 10B. The display target designation information 22A is the same as in the second embodiment, and includes two designations with different target periods. Note that, unlike the first and second embodiments, the specific section designation information 23 is not included in the designation information 21B.

  Similar to the second embodiment, the extraction unit 12A extracts the travel locus information to be displayed for each of the two designations included in the display target designation information 22A. The extraction unit 12A registers the travel trajectory information extracted based on the first designation in the display target travel trajectory list 24B1, and extracts the travel trajectory information extracted based on the second designation as the display target travel trajectory list. Register in 24B2. The display target travel locus lists 24B1 and 24B2 are substantially the same as the display target travel locus lists 24A1 and 24A2 of the second embodiment shown in FIG. 12, but do not include items of “specific vehicle flag” and “comparison flag”.

  As described in the second embodiment, the display target travel locus list 24B1 and the display target travel locus list 24B2 may be separated into one display target travel locus list 24B. In the present embodiment, in order to simplify the description, a case will be described in which the display target travel locus list 24B1 and the display target travel locus list 24B2 are separated.

  The display control unit 14B performs control so that each four-sided mesh 71 is displayed in different colors according to the cumulative number of vehicles in each four-sided mesh 71 per unit time based on each of the display target travel locus lists 24B1 and 24B2. The display control unit 14B realizes animation display by switching and displaying the color-coded display for each unit time.

  Specifically, the display control unit 14B selects a display color pattern for displaying the four-sided mesh 71 in different colors based on the total number of vehicles that have entered the target area during the target period. The display color pattern is a combination of display colors corresponding to the cumulative number of vehicles.

  More specifically, as shown in FIG. 17, a plurality of display colors in which the granularity of the cumulative number of vehicles serving as a reference for switching display colors is varied according to the total number of vehicles that have passed through the target region in the target period. Prepare a pattern. The display control unit 14B counts the number of vehicle IDs in the travel track information included in the display target travel track list 24B1 or 24B2, and obtains the total number of vehicles that have passed through the target region in the target period. The same vehicle ID is counted as one case. Whether to use the total number based on the display target travel locus list 24B1 or 24B2 may follow a predetermined rule. For example, the display target travel locus list 24B1 or 24B2 that has a new target period or that has a larger total number can be used. The display control unit 14B determines a display color pattern based on the obtained total number of vehicles.

  In addition, the display control unit 14B totals the cumulative number represented by the total number of vehicles that have entered the range indicated by each four-sided mesh 71 in each unit time from the start date and time of the target period to the corresponding unit time. Specifically, in the display target travel locus list 24B1, the display control unit 14B includes the positions indicated by “latitude” and “longitude” within the range indicated by each four-sided mesh 71, and “unit time start date and time” is applicable. The traveling locus information that is before the unit time is counted. The display control unit 14B follows the display color pattern determined based on the total number of vehicles, that is, the number of travel locus information counted, that is, the vehicle that has entered the range indicated by each four-sided mesh 71 by the corresponding unit time. The display color corresponding to the cumulative number is determined. Similarly, the display control unit 14B also determines a display color corresponding to the cumulative number of vehicles that have entered the range indicated by each four-sided mesh 71 by the corresponding unit time for the display target travel locus list 24B1. FIG. 18 shows an example of the display color of the four-sided mesh 71 corresponding to the cumulative number. FIG. 18 illustrates a case where the total number of display color patterns shown in FIG. 17 is 10,000. In FIG. 18, the difference in color is represented by the difference in pattern in the four-sided mesh 71.

  The display control unit 14B determines a display color corresponding to the cumulative number of vehicles that have entered the range indicated by the four-sided mesh 71 for all the four-sided meshes 71 included in the target region for each unit time within the target period. . The display control unit 14B stores the determined display color in the predetermined area in association with the unit time and the position information of the four-sided mesh 71 for each of the display target travel locus lists 24B1 and 24B2.

  When the determination of the display color of the four-sided mesh 71 is completed, the display control unit 14B performs control so that a display screen 80B as illustrated in FIG. 19 is displayed on the display device. In the example of FIG. 19, the display screen 80B includes animation reproduction areas 81B1 and 81B2, an information display area 82B, a legend display area 83B, and a reproduction command 84.

  In the animation reproduction area 81B1, an animation with a color-coded display based on the traveling locus information in the display target traveling locus list 24B1 is reproduced. Further, in the animation reproduction area 81B2, an animation with a color-coded display based on the traveling locus information of the display target traveling locus list 24B2 is reproduced.

  Specifically, the display control unit 14B specifies a unit time within the target period corresponding to the position of the slide bar included in the reproduction command 84. The display control unit 14B acquires the display color determined for each four-sided mesh 71 stored in association with the specified unit time for each of the display target travel locus lists 24B1 and 24B2. Then, the display control unit 14B displays the four-sided mesh 71 on the road map developed based on the information of the DRM 32 in different colors with the acquired display color.

  In addition, when the playback button of the playback command 84 is pressed, the display control unit 14B changes the color coding for each four-sided mesh 71 for the next unit time every time a predetermined one frame display time elapses. Change to the determined display color. Therefore, the time change of the cumulative number of vehicles that have passed through each four-sided mesh 71 is displayed as an animation.

  The animation display method and the synchronization method for the other animation reproduction areas 81B1 and 81B2 are the same as those in the first and second embodiments.

  In the information display area 82B, as in the information display area 82A of the second embodiment, information on the display target range is displayed. Since the specific section is not specified, information regarding the specific section is not displayed.

  The vehicle position display device 10B can be realized, for example, by a computer 40 shown in FIG. The storage unit 43 of the computer 40 stores a vehicle position display program 50B for causing the computer 40 to function as the vehicle position display device 10B.

  CPU41 reads the vehicle position display program 50B from the memory | storage part 43, expand | deploys to the memory 42, and performs the process which the vehicle position display program 50B has sequentially. The vehicle position display program 50B includes a reception process 51, an extraction process 52A, and a display control process 54B. The CPU 41 operates as the extraction unit 12A illustrated in FIG. 15 by executing the extraction process 52A. Further, the CPU 41 operates as the display control unit 14B illustrated in FIG. 15 by executing the display control process 54B. The reception process 51 is the same as the vehicle position display program 50 in the first embodiment. Thereby, the computer 40 which executed the vehicle position display program 50B functions as the vehicle position display device 10B.

  The function realized by the vehicle position display program 50B can be realized by, for example, a semiconductor integrated circuit, more specifically, an ASIC or the like.

  Next, the operation of the vehicle position display device 10B according to the third embodiment will be described. The traveling locus DB 31 stores a plurality of traveling locus information. In this state, when the designation information 21B is input to the vehicle position display device 10B, the vehicle position display process shown in FIG. 21 is executed in the vehicle position display device 10B. The vehicle position display process executed in the vehicle position display device 10B is an example of the vehicle position display method of the present invention. Moreover, about the vehicle position display process in 3rd Embodiment, about the step which becomes the process similar to the vehicle position display process in 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  Through the steps S11 and S12 of the vehicle position display process shown in FIG. 21, in the next step S30, the display control unit 14B executes the animation display process based on the display target travel locus lists 24B1 and 24B2 and the DRM 32. Thus, the vehicle position display process ends.

  Next, the animation display process executed in step S30 of the vehicle position display process (FIG. 21) will be described with reference to FIG. In addition, about the animation display process in 3rd Embodiment, the step which becomes the process similar to the animation display process in 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

  In step S31 of the animation display process shown in FIG. 22, the display control unit 14B counts the travel track information included in the display target travel track list 24B1 or 24B2, and obtains the total number of vehicles that have passed through the target region in the target period. . Then, the display control unit 14B determines a display color pattern based on the obtained total number of vehicles.

  Next, through step S21, in the next loop processing of step S22, the display control unit 14B sets each unit time from the start date and time to the end date and time of the target period one by one as a processing target, and the loop of step S23. Execute the process. In the loop process of step S23, the display control unit 14B sets each of all the four-sided meshes 71 in the target area as a process target one by one, and executes the processes of the following steps S32 and S33.

  In step S <b> 32, the display control unit 14 </ b> B specifies the range indicated by the four-sided mesh 71 to be processed based on the position information and the size of the four-sided mesh 71 to be processed. Then, the display control unit 14B totals the cumulative number represented by the total number of vehicles that have entered the range indicated by each four-sided mesh 71 in each unit time from the start date and time of the target period to the unit time to be processed. .

  Next, in step S33, the display control unit 14B determines a display color corresponding to the cumulative number of vehicles counted in step S32 according to the display color pattern determined based on the total number of vehicles in step S31. .

  When all the loop processing in step S23 is completed, and further, when the loop processing in step S22 is completed, the processing proceeds to step S34. In addition, the loop process of step S22 and S23 is performed about each of display object traveling locus lists 24B1 and 24B2.

  In step S34, the display control unit 14B controls each four-sided mesh 71 with the display color determined in step S33 so that a display screen 80B as shown in FIG. 19 is displayed on the display device. Further, the display control unit 14B specifies the unit time to be displayed in the animation reproduction areas 81B1 and 81B2 in accordance with the operation of the reproduction command 84. Then, the display control unit 14B changes the color coding of each four-sided mesh 71 to the display color stored in association with the specified unit time. The display control unit 14B realizes animation display by changing the color-coded display of each four-sided mesh 71 each time the unit time of the display target changes.

  As described above, according to the vehicle position display device according to the third embodiment, in addition to the effects of the first embodiment, intuitively grasp the cumulative change in the traffic volume at each point in the target area. Can do. In addition, as in the third embodiment, by using the travel locus information in different periods, it is possible to easily compare the cumulative changes in traffic volume at each point in the target area in different periods.

  In addition, in 3rd Embodiment, although the case where it color-coded according to the cumulative number of vehicles for every four side mesh was demonstrated, based on the number of vehicles per unit time like 1st and 2nd embodiment, You may color-code a four-sided mesh. In this case, the display color pattern defines a set of display colors corresponding to the number of vehicles per unit time. Then, in step S32 of the animation process shown in FIG. 22, the number of vehicles in the unit time to be processed, not the cumulative number up to the unit time to be processed, is totaled, and the number of vehicles in the unit time is calculated according to the display color pattern. A corresponding display color may be determined. Thereby, the change of the traffic volume per unit time in each point of a target area | region can be grasped | ascertained intuitively.

  Also in the first and second embodiments, display according to the cumulative number of vehicles up to a unit time may be performed as in the third embodiment. In this case, the mark size may be changed according to the cumulative number.

  Using the number of vehicles per unit time as an aggregation unit is suitable for grasping the vehicle movement status and traffic volume per unit time, and using the cumulative number as an aggregation unit indicates how much the road uses. It is suitable for grasping information such as whether or not it is done.

<Fourth embodiment>
In the fourth embodiment, a case will be described in which the animation display in the first embodiment and the animation display in the third embodiment can be switched. Note that in the fourth embodiment, the same portions as those of the vehicle position display device 10 according to the first embodiment or the vehicle position display device 10B according to the third embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. To do.

  As illustrated in FIG. 1, the vehicle position display device 10C according to the fourth embodiment includes a reception unit 11, an extraction unit 12, a specification unit 13, and a display control unit 14C.

  Similarly to the display control unit 14 of the first embodiment, the display control unit 14C performs an animation display in which the dots 85 indicating the vehicle group of the specific vehicle and the dots 86 indicating the vehicle group other than the specific vehicle are displayed in an identifiable manner. . In addition, the display control unit 14C performs an animation display in which the four-sided mesh 71 is color-coded according to the cumulative number of vehicles that have passed, in the same manner as the display control unit 14B of the third embodiment. Hereinafter, the former animation display is referred to as mode 1, and the latter animation display is referred to as mode 2.

  Further, as shown in FIG. 23, the display control unit 14C performs control so that each of the display screen 80C1 in mode 1 and the display screen 80C2 in mode 2 is displayed on the display device in a switchable state. Each of the display screens 80C1 and 80C2 includes a switching button 87 that is pressed when switching the display between the modes. The display screen 80C1 is the same as the display screen 80 shown in FIG. The display screen 80C2 is the same as the display screen 80B shown in FIG. 19 except that the display screen 80C2 includes the switching button 87 and the animation reproduction area 81C2 is one.

  When the display control unit 14C detects that the switch button 87 is pressed while the mode 1 display screen 80C1 is displayed, the display control unit 14C switches to display the mode 2 display screen 80C2. When the display control unit 14C detects that the switch button 87 is pressed while the mode 2 display screen 80C2 is displayed, the display control unit 14C switches to display the mode 1 display screen 80C2.

  The vehicle position display device 10C can be realized by, for example, a computer 40 shown in FIG. The storage unit 43 of the computer 40 stores a vehicle position display program 50C for causing the computer 40 to function as the vehicle position display device 10C.

  CPU41 reads the vehicle position display program 50C from the memory | storage part 43, expand | deploys to the memory 42, and performs sequentially the process which the vehicle position display program 50C has. The vehicle position display program 50C includes a reception process 51, an extraction process 52, a specifying process 53, and a display control process 54C. The CPU 41 operates as the display control unit 14C illustrated in FIG. 1 by executing the display control process 54C. About another process, it is the same as that of the vehicle position display program 50 in 1st Embodiment. Thereby, the computer 40 which executed the vehicle position display program 50C functions as the vehicle position display device 10C.

  The function realized by the vehicle position display program 50C can be realized by, for example, a semiconductor integrated circuit, more specifically, an ASIC or the like.

  Next, the operation of the vehicle position display device 10C according to the fourth embodiment will be described. The traveling locus DB 31 stores a plurality of traveling locus information. In this state, when the designation information 21 is input to the vehicle position display device 10C, the vehicle position display process shown in FIG. 9 is executed in the vehicle position display device 10C. The vehicle position display process executed in the vehicle position display device 10C is an example of the vehicle position display method of the present invention. Moreover, about the vehicle position display process in 4th Embodiment, about the step which becomes the process similar to the vehicle position display process in 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  In step S20 of the vehicle position display process shown in FIG. 9, steps S21 to S25 of the animation process shown in FIG. 10 and steps S31 to 33 of the animation process shown in FIG. 22 are executed. Then, in place of step S26 (or step S34), a mode switching process shown in FIG. 24 is executed.

  In step S41 of the mode switching process shown in FIG. 24, the display control unit 14C performs the mode 1 animation display as in step S26 of the animation process shown in FIG.

  Next, in step S42, the display control unit 14C determines whether or not the switching button 87 on the display screen 80C1 has been pressed. If the switch button 87 has not been pressed, the process proceeds to step S43. In step S43, the display control unit 14C determines whether or not to end the display of the display screen 80C1 based on whether or not an instruction to close the display screen 80C1 has been received. When the display is terminated, the mode switching process is terminated. On the other hand, if the display of the display screen 80C1 is not terminated, the process returns to step S41, and the display control unit 14C continues the mode 1 animation display according to the playback command 84.

  On the other hand, if the display control unit 14C determines in step S42 that the switch button 87 has been pressed, the process proceeds to step S45. In step S45, the display control unit 14C ends the mode 1 animation display, and performs the mode 2 animation display similarly to step S34 of the animation process shown in FIG.

  Next, in step S46, the display control unit 14C determines whether or not the switching button 87 on the display screen 80C2 has been pressed. If the switch button 87 has not been pressed, the process proceeds to step S47. In step S47, the display control unit 14C determines whether or not to end the display of the display screen 80C2 based on whether or not an instruction to close the display screen 80C2 has been received. When the display is terminated, the mode switching process is terminated. On the other hand, if the display of the display screen 80C2 is not terminated, the process returns to step S45, and the display control unit 14C continues the mode 2 animation display according to the playback command 84.

  On the other hand, if the display control unit 14C determines in step S46 that the switch button 87 has been pressed, the process proceeds to step S41, and the mode 2 is switched to the mode 1 animation display.

  As described above, according to the vehicle position display device according to the fourth embodiment, the effects of the first and third embodiments can be obtained by a simple switching operation.

  In the fourth embodiment, the case where each of the display screen 80C1 in mode 1 and the display screen 80C2 in mode 2 includes one animation playback area has been described. However, as in the second and third embodiments, 2 Two or more animation playback areas may be included.

  In the above description, the vehicle position display programs 50, 50 </ b> A, 50 </ b> B, and 50 </ b> C have been stored (installed) in the storage unit 43 in advance. However, the present invention is not limited to this. The program according to the disclosed technology can be provided in a form recorded on a recording medium such as a CD-ROM, a DVD-ROM, or a USB memory.

  Regarding the above embodiments, the following additional notes are disclosed.

(Appendix 1)
Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Identifying one or more vehicles that have passed through a specific area included in the geographical area of the identified vehicle group;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A vehicle position display program for causing a computer to execute a process of performing display control different from a mark to be displayed corresponding to a position.

(Appendix 2)
When the position of any vehicle included in the one or more vehicles and the position of any vehicle included in the other vehicle overlap, display corresponding to the specified position of the one or more vehicles The vehicle position display program according to claim 1, wherein display control is performed in preference to a mark to be displayed corresponding to a position of another vehicle.

(Appendix 3)
The vehicle position display program according to supplementary note 1, wherein the position corresponds to any area obtained by dividing the geographical area into meshes with a predetermined size.

(Appendix 4)
Furthermore, we accept the specification of the time range,
2. The vehicle position display program according to claim 1, wherein the vehicle group is a vehicle group in which a travel history of traveling in the geographical area within the received time range is stored.

(Appendix 5)
Accepting another time range specification,
Specify another vehicle group in which the travel history of traveling in the geographical area within the received another time range is stored,
When performing the second display using the mark for the position of the other vehicle group in accordance with the first display using the mark for the position of the vehicle group in the geographical area based on the travel history. Further, in both the first display and the second display, the mark to be displayed corresponding to the position of the one or more vehicles in the specified vehicle group is controlled to the same type of mark. Vehicle position display program.

(Appendix 6)
Accepting another time range specification,
Specify another vehicle group in which the travel history of traveling in the geographical area within the received another time range is stored,
When performing a first display using a mark for the position of the vehicle group in the geographical area based on the travel history and a second display using a mark for the position of the other vehicle group. In both the first display and the second display, one or a plurality of vehicles including the passage history of a specific specific area included in the geographical area are displayed with different marks from other vehicles. Display control,
The vehicle position display program according to appendix 4, which causes a computer to execute

(Appendix 7)
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area The display color of the area is changed according to the time change of the cumulative number of vehicles that have entered each area.
The vehicle position display program according to supplementary note 1, wherein

(Appendix 8)
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area The display color of the area is changed according to the change in the total number of vehicles that have entered each area per unit time.
The vehicle position display program according to supplementary note 1, wherein

(Appendix 9)
Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Among the identified vehicle group, one or a plurality of vehicles that have passed through a specific area included in the geographical area are specified, and the position of the vehicle group in the geographical area is determined based on the travel history. A first display control for differentiating the mark to be displayed in correspondence with the position of the other vehicle from the mark to be displayed in correspondence with the position of the other vehicle, ,
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area A vehicle position display program for causing a computer to execute a process of switching a display color of an area so as to be switchable between second display control for changing the display color of the area in accordance with a change in the cumulative number of vehicles that have entered the area.

(Appendix 10)
A reception unit that accepts designation of a geographical area;
The vehicle group in which the travel history that has traveled in the received geographical area is stored is specified, and one or more of the specified vehicle group that has passed through a specific area included in the geographical area A specific part for identifying a vehicle;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A display control unit for performing display control different from the mark to be displayed corresponding to the position;
A vehicle position display device.

(Appendix 11)
When the position of any vehicle included in the one or more vehicles and the position of any vehicle included in the other vehicle overlap, the display control unit The vehicle position display device according to supplementary note 10, wherein display control is performed so that a mark to be displayed corresponding to a position has priority over a mark to be displayed corresponding to a position of another vehicle.

(Appendix 12)
The vehicle position display device according to supplementary note 10, wherein the position corresponds to any area obtained by dividing the geographical area into meshes with a predetermined size.

(Appendix 13)
The reception unit further receives specification of a time range,
The vehicle position display device according to supplementary note 10, wherein the specifying unit sets the vehicle group as a vehicle group in which a travel history of traveling in the geographical area within the received time range is stored.

(Appendix 14)
The reception unit receives a designation of another time range,
The specifying unit specifies another vehicle group in which a travel history of traveling in the geographical area within the received another time range is stored,
The display control unit adjusts the position of the vehicle group in the geographical area based on the traveling history to the first display using the mark, and uses the mark for the position of the other vehicle group. When performing the second display, the mark of the same type is used to display the mark corresponding to the position of the one or more vehicles in the specified vehicle group in both the first display and the second display. The vehicle position display device according to supplementary note 13.

(Appendix 15)
The reception unit receives a designation of another time range,
The specifying unit specifies another vehicle group in which a travel history of traveling in the geographical area within the received another time range is stored,
The display control unit includes a first display using a mark indicating the position of the vehicle group in the geographical area based on the travel history, and a second display using a mark indicating the position of the other vehicle group. When performing the display, in both the first display and the second display, other one or more vehicles including the passage history of a specific specific area included in the geographical area are included. The vehicle position display device according to appendix 13, wherein the vehicle position display device displays the mark different from the vehicle.

(Appendix 16)
The display control unit mesh-divides the geographical area when displaying the time change of the position of the vehicle group in the geographical area by the time change of the display position of the mark based on the travel history. The vehicle position display device according to appendix 10, wherein the display color of each region obtained in this manner is changed according to the time change of the cumulative number of vehicles that have entered the region.

(Appendix 17)
The display control unit mesh-divides the geographical area when displaying the time change of the position of the vehicle group in the geographical area by the time change of the display position of the mark based on the travel history. The vehicle position display device according to appendix 10, wherein the display color of each area obtained in this way is changed according to a change in the total number of vehicles that have entered the area per unit time.

(Appendix 18)
A reception unit that accepts designation of a geographical area;
The vehicle group in which the travel history that has traveled in the received geographical area is stored is specified, and one or more of the specified vehicle group that has passed through a specific area included in the geographical area A specific part for identifying a vehicle;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A first display control that is different from a mark to be displayed corresponding to a position, and a time change in the position of the vehicle group in the geographical area based on the travel history is displayed as a time change in the display position of the mark. A second display control for changing a display color of each area obtained by mesh division in the geographical area in accordance with a time change of a cumulative number of vehicles that have entered the area. A display control unit that controls to be switchable;
A vehicle position display device.

(Appendix 19)
Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Identifying one or more vehicles that have passed through a specific area included in the geographical area of the identified vehicle group;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A vehicle position display method for causing a computer to execute a process of performing display control different from a mark to be displayed corresponding to a position.

(Appendix 20)
When the position of any vehicle included in the one or more vehicles and the position of any vehicle included in the other vehicle overlap, display corresponding to the specified position of the one or more vehicles The vehicle position display method according to appendix 19, wherein display control is performed in preference to a mark to be displayed corresponding to the position of another vehicle.

(Appendix 21)
The vehicle position display method according to supplementary note 19, wherein the position corresponds to any area obtained by mesh-dividing the geographical area with a predetermined size.

(Appendix 22)
Furthermore, we accept the specification of the time range,
The vehicle position display method according to appendix 19, wherein the vehicle group is a vehicle group in which a travel history of traveling in the geographical area within the received time range is stored.

(Appendix 23)
Accepting another time range specification,
Specify another vehicle group in which the travel history of traveling in the geographical area within the received another time range is stored,
When performing the second display using the mark for the position of the other vehicle group in accordance with the first display using the mark for the position of the vehicle group in the geographical area based on the travel history. Further, in both the first display and the second display, the mark to be displayed corresponding to the position of the one or more vehicles in the specified vehicle group is controlled to the same type of mark. Vehicle position display method.

(Appendix 24)
Accepting another time range specification,
Specify another vehicle group in which the travel history of traveling in the geographical area within the received another time range is stored,
When performing a first display using a mark for the position of the vehicle group in the geographical area based on the travel history and a second display using a mark for the position of the other vehicle group. In both the first display and the second display, one or a plurality of vehicles including the passage history of a specific specific area included in the geographical area are displayed with different marks from other vehicles. Display control,
24. A vehicle position display method according to appendix 22, wherein the computer is executed.

(Appendix 25)
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area The display color of the area is changed according to the time change of the cumulative number of vehicles that have entered each area.
The vehicle position display method according to supplementary note 19, characterized by that.

(Appendix 26)
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area The display color of the area is changed according to the change in the total number of vehicles that have entered each area per unit time.
The vehicle position display method according to supplementary note 19, characterized by that.

(Appendix 27)
Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Among the identified vehicle group, one or a plurality of vehicles that have passed through a specific area included in the geographical area are specified, and the position of the vehicle group in the geographical area is determined based on the travel history. A first display control for differentiating the mark to be displayed in correspondence with the position of the other vehicle from the mark to be displayed in correspondence with the position of the other vehicle, ,
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area A vehicle position display method for causing a computer to execute a process of switching a display color of a region so as to be switchable between a second display control for changing the display color of the region in accordance with a change in the cumulative number of vehicles that have entered the region.

(Appendix 28)
Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Identifying one or more vehicles that have passed through a specific area included in the geographical area of the identified vehicle group;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A storage medium storing a vehicle position display program for causing a computer to execute a process of performing display control different from a mark to be displayed corresponding to a position.

(Appendix 29)
Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Among the identified vehicle group, one or a plurality of vehicles that have passed through a specific area included in the geographical area are specified, and the position of the vehicle group in the geographical area is determined based on the travel history. A first display control for differentiating the mark to be displayed in correspondence with the position of the other vehicle from the mark to be displayed in correspondence with the position of the other vehicle, ,
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area A storage storing a vehicle position display program for causing a computer to execute a process for switching the display color of the area so as to be switchable between the second display control for changing the display color of the area according to the time change of the cumulative number of vehicles that have entered the area. Medium.

10, 10A, 10B, 10C Vehicle position display device 11 Reception unit 12, 12A Extraction unit 13, 13A identification unit 14, 14A, 14B, 14C Display control unit 21, 21A, 21B designation information 22, 22A display target designation information 23 identification Section designation information 24, 24A1, 24A2, 24B1, 24B2 Display target travel locus list 31 Travel locus database (DB)
32 Digital Road Map (DRM)
40 Computer 41 CPU
42 Memory 43 Storage 50, 50A, 50B, 50C Vehicle position display program 71 Four-sided mesh 80, 80A, 80B, 80C, 80C2 Display screen 81, 81A1, 81A2, 81B1, 81B2 Animation playback area 85 Indicates a vehicle group of a specific vehicle Dot 86 Dot 87 switch button indicating a vehicle group other than the specific vehicle

Claims (13)

Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Identifying one or more vehicles that have passed through a specific area included in the geographical area of the identified vehicle group;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A vehicle position display program for causing a computer to execute a process of performing display control different from a mark to be displayed corresponding to a position. When the position of any vehicle included in the one or more vehicles and the position of any vehicle included in the other vehicle overlap, display corresponding to the specified position of the one or more vehicles The vehicle position display program according to claim 1, wherein display control is performed in preference to a mark to be displayed corresponding to a position of another vehicle.   The vehicle position display program according to claim 1, wherein the position corresponds to any area obtained by dividing the geographical area into meshes with a predetermined size. Furthermore, we accept the specification of the time range,
The vehicle position display program according to claim 1, wherein the vehicle group is a vehicle group in which a travel history of traveling in the geographical area within the received time range is stored. Accepting another time range specification,
Specify another vehicle group in which the travel history of traveling in the geographical area within the received another time range is stored,
When performing the second display using the mark for the position of the other vehicle group in accordance with the first display using the mark for the position of the vehicle group in the geographical area based on the travel history. Further, in both the first display and the second display, a mark to be displayed corresponding to the position of the one or more vehicles in the specified vehicle group is controlled to the same type of mark. The vehicle position display program described. Accepting another time range specification,
Specify another vehicle group in which the travel history of traveling in the geographical area within the received another time range is stored,
When performing a first display using a mark for the position of the vehicle group in the geographical area based on the travel history and a second display using a mark for the position of the other vehicle group. In both the first display and the second display, one or a plurality of vehicles including the passage history of a specific specific area included in the geographical area are displayed with different marks from other vehicles. Display control,
The vehicle position display program according to claim 4, wherein the computer is executed. When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area The display color of the area is changed according to the time change of the cumulative number of vehicles that have entered each area.
The vehicle position display program according to claim 1. When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area The display color of the area is changed according to the change in the total number of vehicles that have entered each area per unit time.
The vehicle position display program according to claim 1. Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Among the identified vehicle group, one or a plurality of vehicles that have passed through a specific area included in the geographical area are specified, and the position of the vehicle group in the geographical area is determined based on the travel history. A first display control for differentiating the mark to be displayed in correspondence with the position of the other vehicle from the mark to be displayed in correspondence with the position of the other vehicle, ,
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area A vehicle position display program for causing a computer to execute a process of switching a display color of an area so as to be switchable between second display control for changing the display color of the area in accordance with a change in the cumulative number of vehicles that have entered the area. A reception unit that accepts designation of a geographical area;
The vehicle group in which the travel history that has traveled in the received geographical area is stored is specified, and one or more of the specified vehicle group that has passed through a specific area included in the geographical area A specific part for identifying a vehicle;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A display control unit for performing display control different from the mark to be displayed corresponding to the position;
A vehicle position display device. A reception unit that accepts designation of a geographical area;
The vehicle group in which the travel history that has traveled in the received geographical area is stored is specified, and one or more of the specified vehicle group that has passed through a specific area included in the geographical area A specific part for identifying a vehicle;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A first display control that is different from a mark to be displayed corresponding to a position, and a time change in the position of the vehicle group in the geographical area based on the travel history is displayed as a time change in the display position of the mark. A second display control for changing a display color of each area obtained by mesh division in the geographical area in accordance with a time change of a cumulative number of vehicles that have entered the area. A display control unit that controls to be switchable;
A vehicle position display device. Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Identifying one or more vehicles that have passed through a specific area included in the geographical area of the identified vehicle group;
When displaying the position of the vehicle group in the geographical area using the mark based on the travel history, a mark to be displayed corresponding to the specified position of the one or more vehicles is displayed on another vehicle. A vehicle position display method for causing a computer to execute a process of performing display control different from a mark to be displayed corresponding to a position. Accepts geographic region designations,
Identify a vehicle group in which the traveling history of traveling in the received geographical area is stored;
Among the identified vehicle group, one or a plurality of vehicles that have passed through a specific area included in the geographical area are specified, and the position of the vehicle group in the geographical area is determined based on the travel history. A first display control for differentiating the mark to be displayed in correspondence with the position of the other vehicle from the mark to be displayed in correspondence with the position of the other vehicle, ,
When displaying the time change of the position of the vehicle group in the geographical area based on the travel history with the time change of the display position of the mark, each obtained by mesh division in the geographical area A vehicle position display method for causing a computer to execute a process of switching a display color of a region so as to be switchable between a second display control for changing the display color of the region in accordance with a change in the cumulative number of vehicles that have entered the region.