Information display control device, information display method, and program

Abstract

To provide an information display control device, an information display control method, and a program that can quickly grasp a time point of a traffic record at each location after a disaster or the like occurs.SOLUTION: An information display control device according to the present disclosure comprises acquisition means and control means. The acquisition means acquires vehicle information including a location on a road that each of plural vehicles passed and a time point when the vehicle traveled at the location. The control means extracts the vehicle traveling at a constant speed or higher based on the vehicle information, and causes the display means to display a traffic record of the extracted vehicle.SELECTED DRAWING: Figure 12

Description

Technical Field

[0001] The present disclosure relates to an information display control device, an information display method, and a program.

Background Art

[0002] There is known a system that collects road images captured by vehicles and monitors the traffic performance and conditions of roads.

[0003] For example, Patent Document 1 discloses an apparatus that runs a plurality of vehicles equipped with drive recorders, and acquires images via a communication network as shooting information, including images of roads captured by each vehicle and information such as the shooting time and location. This image acquisition apparatus analyzes the road conditions based on the received shooting information. The technology of Patent Document 1 is used for road management operators to grasp the passable road conditions in the disaster area even during disasters. In this case, the traffic performance of the road is, for example, displayed on a map and presented to the operator.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] During a disaster, the road conditions change moment by moment. For example, in the case of a typhoon or heavy rain, waterlogging on the road, falling trees or poles, or landslides occur, and the passable roads become impassable as time passes since the disaster occurred. In this case, the operator of the road management agency needs to confirm up to what point there was traffic performance in order to grasp the road conditions in detail.

[0006] On the one hand, when displaying traffic records on a map, generally, the traffic records at the current time or a specified time are displayed. For this reason, as described above, when the road conditions change moment by moment, in order to confirm up to which point there were traffic records, the operator has to repeatedly specify the time on the map and check the changes in traffic records for each section of the road. Therefore, when the sections of the road to be managed are extremely numerous, it has been difficult to quickly grasp the points in time when there were traffic records for each section.

[0007] One object of the present disclosure is to solve the above problems and provide an information display control device, an information display control method, and a program that can quickly grasp the points in time when there were traffic records at each location after a disaster occurs or the like.

Means for Solving the Problems

[0008] An information display control device according to one aspect of the present disclosure includes an acquisition unit that acquires vehicle information including points on each section of a road where each of a plurality of vehicles has passed and the time when the vehicle passed through the point, and for each section of the road, a map is generated in which the traffic record calculated based on the vehicle information including the points on the section is shown in different modes according to the elapsed time from the latest time included in the vehicle information including the points on the section, and a control unit that causes a display unit to display the map.

[0009] An information display method according to one aspect of the present disclosure acquires vehicle information including points on each section of a road where each of a plurality of vehicles has passed and the time when the vehicle passed through the point, generates a map in which the traffic record calculated based on the vehicle information including the points on the section is shown in different modes according to the elapsed time from the latest time included in the vehicle information including the points on the section for each section of the road, and causes the display unit to display the map.

[0010] A recording medium according to one aspect of the present disclosure acquires vehicle information including the location of each section on a road where each of a plurality of vehicles has passed and the time when the vehicle passed that location, and for each section on the road, generates a map showing the traffic performance calculated based on the vehicle information including the location on the section in different modes according to the elapsed time from the latest time included in the vehicle information including the location on the section, and records a program for causing a display means to execute a process of displaying the map.

Effect of the Invention

[0011] An effect of the present disclosure is that it is possible to quickly grasp the time when there was traffic performance at each location after a disaster or the like.

Brief Description of the Drawings

[0012]

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[0013] The embodiments will be described in detail with reference to the drawings. In each of the drawings and each of the embodiments described in the specification, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

[0014] (First Embodiment) The first embodiment will be described.

[0015] First, the configuration of the information display system in the first embodiment will be described. FIG. 1 is a schematic diagram showing an overview of the information display system 10 in the first embodiment. Referring to FIG. 1, the information display system 10 includes a plurality of imaging devices 20_1, 20_2,... 20_N (N is a natural number) (hereinafter, also collectively referred to as the imaging device 20), an information display control device 30, a plurality of vehicles 40_1, 40_2,... 40_N (N is a natural number) (hereinafter, also collectively referred to as the vehicle 40), and a display device 50.

[0016] In the information display system 10, the imaging devices 20_1, 20_2,... 20_N are respectively mounted on the vehicles 40_1, 40_2,... 40_N belonging to a road management agency such as a local government or a road management company. Also, in the information display system 10, the information display control device 30 and the imaging devices 20_1, 20_2,... 20_N are connected so as to be communicable via, for example, a communication network.

[0017] The information display control device 30 and the display device 50 are arranged, for example, at the above-described road management agency. Further, the information display control device 30 may be arranged outside the above-described road management agency. In this case, the information display control device 30 may be realized by a cloud computing system.

[0018] Note that, in the present embodiment, the case where the imaging device 20 is mounted on the vehicle 50 will be described. In this case, the imaging device 20 may be, for example, a drive recorder mounted on the vehicle. Further, the imaging device 20 may be mounted on other moving bodies such as bicycles and drones, or a person may carry the imaging device 20.

[0019] Next, with reference to FIG. 2, the configuration of each device will be described. FIG. 2 is a block diagram showing an example of the configuration of the information display system 10 in the first embodiment.

[0020] (Configuration of Imaging Device) As shown in FIG. 2, the imaging device 20 includes an imaging unit 21, a time acquisition unit 22, a location acquisition unit 23, a storage unit 24, and a transmission unit 25.

[0021] The imaging unit 21 captures an image of the surroundings of the vehicle 40. The imaging unit 21 captures an image of the surroundings of the vehicle 40 at a predetermined interval while the vehicle 40 is traveling on the road. The image obtained by the imaging may or may not include an image of the surrounding road such as in front of the vehicle 40. Further, the image obtained by the imaging is an image of the surroundings of the moving body in the case of a moving body in general, and an image of the surroundings of a person in the case of a person.

[0022] The time acquisition unit 22 acquires the time at the location where the vehicle 40 has passed. The time acquisition unit 22 outputs the imaging time to the imaging unit 21.

[0023] The location acquisition unit 23 acquires the location where the vehicle 40 is passing. The location acquisition unit 23 outputs the location where the vehicle 40 has passed to the imaging unit 21. The location acquisition unit 23 is, for example, a GPS (Global Positioning System) receiver, and may be provided in the imaging unit 21 or may be a separate unit.

[0024] The imaging unit 21 associates the location acquired by the location acquisition unit 23, the time acquired by the time acquisition unit 22 (the time of passing through the location), and the image captured by the imaging unit 21 (the image captured at that time), and stores them in the storage unit 24 as vehicle information.

[0025] The storage unit 24 stores a vehicle ID (Identifier). The storage unit 24 also stores vehicle information. The storage unit 24 is, for example, a RAM (Random Access Memory).

[0026] The transmission unit 25 acquires vehicle information from the storage unit 24 and transmits it to the information display control device 30 via a communication network. The transmission unit 25 may transmit, for example, vehicle information including the image each time an image is captured, or may transmit vehicle information including each of one or more images captured in each predetermined period at each predetermined period. (Configuration of Information Display Control Device) The information display control device 30 includes a vehicle information acquisition unit 31, a storage unit 32, and a display control unit 33. The vehicle information acquisition unit 31 is an embodiment of the acquisition unit in the present disclosure. The display control unit 33 is an embodiment of the control unit in the present disclosure. Note that some or all of the components of the information display control device 30 may be realized by the above-described cloud computing system. For example, the vehicle information acquisition unit 31 and the storage unit 32 may be arranged on the cloud, and the display control unit 33 may be arranged in a road management agency.

[0027] The vehicle information acquisition unit 31 acquires vehicle information transmitted from the imaging device 20 of the vehicle 40. FIG. 3 is an example of vehicle information in the first embodiment. The vehicle information includes, as described above, a vehicle ID, a location where the vehicle passed, the time of passing through the location, and an image captured at that time. When the imaging device 20 transmits vehicle information each time an image is captured, instead of the imaging device 20 setting the time of passing through the location in the vehicle information, the vehicle information acquisition unit 31 may set the time when the vehicle information is received as the time of the vehicle information.

[0028] Referring to FIG. 3, as an example, the vehicle information stores a vehicle ID "1", a time "13:00", a location "A1_1", and an image "Image I31" taken at that time. The vehicle information acquisition unit 31 stores the vehicle information in the storage unit 32.

[0029] The storage unit 32 stores the vehicle information acquired by the vehicle information acquisition unit 31. In addition, a map is stored in the storage unit 32 in advance. The map is, for example, a map of an area managed by a road management agency.

[0030] The display control unit 33 displays the map stored in the storage unit 32 on the display device 50. In addition, the display control unit 33 acquires the vehicle information from the storage unit 32. The display control unit 33 uses the location and time included in each vehicle information to show the passing record on the map displayed on the display device 50.

[0031] The display control unit 33 determines the passing record for each predetermined-length road section, for example, as described later. In addition, the display control unit 33 may determine the passing record for each location included in the vehicle information received from each vehicle 40. Further, the display control unit 33 may determine the passing record for each mesh obtained by dividing the area on the map into a grid based on the location (latitude / longitude) included in the vehicle information. The display control unit 33 shows the passing record on the map by, for example, superimposing a predetermined figure such as a rectangle or a predetermined line segment such as a thick line on the road on the map. Note that if the display control unit 33 can show the passing record on the map, a predetermined figure or a predetermined line segment may be superimposed at a position along a road other than on the road.

[0032] In addition, the display control unit 33 changes the display mode of the travel record on the map according to the elapsed time from the time of the latest vehicle information. Here, the display control unit 33 changes, for example, at least one of the size, color, and transparency of the above-described predetermined figure indicating the travel record, or at least one of the thickness, color, and transparency of the predetermined line segment. Further, when the elapsed time from the time of the latest vehicle information is equal to or more than a predetermined value, the display control unit 33 deletes the predetermined figure or the predetermined line segment. Further, when the elapsed time from the time of the latest vehicle information is equal to or more than a predetermined value, the display control unit 33 may change the predetermined figure or line segment to a different figure or line segment.

[0033] Furthermore, when an arbitrary road section where the travel record is shown on the map is designated, the display control unit 33 displays an image included in the vehicle information of the road section on the display device 50. When there are a plurality of images with different times for the designated road section, the display control unit 33 may display the plurality of images on the display device 50 in time series. Further, when displaying an image on the display device 50, the display control unit 33 may also display the time associated with the image together.

[0034] The display device 50 is, for example, a display. The display device 50 displays a map or an image showing the travel record according to the control of the display control unit 33.

[0035] Next, the operation of the first embodiment will be described. (Travel Record Display Process) The travel record display process in the information display system 10 will be described with reference to FIGS. 4 and 5.

[0036] FIG. 4 is a flowchart showing the travel record display process in the first embodiment. The travel record display process may be automatically executed by the information display control device 30 at an arbitrary timing after the occurrence of a disaster, or may be executed in response to an operator's instruction.

[0037] In the following description of the travel record display process, it is assumed that the storage unit 32 stores the vehicle information as shown in FIG. 3 acquired by the vehicle information acquisition unit 31. It is also assumed that the storage unit 32 stores a map as shown in FIG. 5. FIG. 5 is an example of a map displayed on the display device 50 in the first embodiment. Here, it is assumed that each road in the map to be managed is divided into sections of a predetermined length (for example, several tens of meters or several hundreds of meters). Note that the points "A1_1", "A2_1",... in FIG. 3 are the points included in the sections "A1", "A2", respectively.

[0038] The display control unit 33 of the information display control device 30 selects a section to be processed (hereinafter also referred to as a target section) among the sections on the road in the map (S101). The display control unit 33 acquires the vehicle information of the target section in the time zone for which the travel record is to be displayed (hereinafter also referred to as the target time zone) from the storage unit 32 (S102). Here, the target time zone is, for example, the time zone from the disaster occurrence time to the current time specified by the operator. The vehicle information in the target time zone is the vehicle information in which the time included in the vehicle information is included in the target time zone. The vehicle information of the target section is the vehicle information in which the location included in the vehicle information is included in the target section. Note that the display control unit 33 may acquire the vehicle information of the vehicle 40 that has moved at a certain speed or more among the vehicle information of the target section in the target time zone. The vehicle 40 that has moved at a certain speed or more can be extracted based on the vehicle ID, location, and time included in the vehicle information.

[0039] In step S102, if the vehicle information cannot be acquired (step S103 / NO), the display control unit 33 determines that there is no travel record in the target section in the target time zone, and proceeds to the process of step S105.

[0040] In step S103, if the vehicle information has been acquired (step S103 / YES), the display control unit 33 determines that there is a travel record at the target location in the target time zone.

[0041] The display control unit 33 indicates the traffic record at the target location on the corresponding target section on the map (S104). Here, the display control unit 33 indicates the traffic record in different manners according to the elapsed time from the latest time included in the vehicle information of the target section.

[0042] The display control unit 33 repeats the process from step S101 for the entire section of the road on the map (step S105), thereby generating a map with the traffic record indicated.

[0043] The display control unit 33 causes the map with the traffic record indicated (the generated map) to be displayed on the display device 50 (step S106).

[0044] FIGS. 6 to 8 are examples of the maps displayed on the display device 50 in the first embodiment.

[0045] FIG. 6 is an example when the traffic record display process is executed at the current time of 15:30.

[0046] For example, assume that the traffic record display process is executed at the current time of 15:30 with the target time period being 13:00 to 15:30. In this case, the display control unit 33 determines based on the vehicle information in FIG. 3 that there is a traffic record in sections A1, A2, and A3 during the target time period. Here, the latest times included in the vehicle information of sections A1, A2, and A3 are 13:00, 14:00, and 15:00 respectively.

[0047] The display control unit 33, for example, as shown in FIG. 6, superimposes a line (thick line) thicker than the thickness of the line indicating the road on the section of the road with a traffic record. Then, the display control unit 33 changes the transparency of the superimposed thick line according to the number of times the first time has elapsed from the latest time included in the vehicle information. Further, the display control unit 33 deletes (does not superimpose) the thick line if the second time has elapsed from the latest time included in the vehicle information even if there is a traffic record.

[0048] Here, the first time is set to 1 hour and the second time is set to 4 hours. Also, according to the number of times the first time has elapsed (0 times, 1 time, 2 times, 3 times), the transparency of the thick line indicating the traffic record is set to four levels: 0% (less than 1 hour from the last reception time), 25% (1 hour or more and less than 2 hours), 50% (2 hours or more and less than 3 hours), and 75% (3 hours or more). Also, the second time is set to 4 hours.

[0049] As shown in FIG. 6, the display control unit 33 causes the display device 50 to display a map in which the traffic records of sections A1, A2, and A3, for which 2.5 hours, 1.5 hours, and 0.5 hours have elapsed respectively from the latest time included in the vehicle information, are indicated by thick lines with transmittance of 50%, 25%, and 0% respectively.

[0050] FIG. 7 is an example when the traffic record display process is executed at the current time of 17:30.

[0051] For example, assume that the traffic record display process is executed at the current time of 17:30 with the target time zone being 13:00 to 17:30. In this case, the display control unit 33 determines, based on the vehicle information for example, that there are traffic records in sections A1, A2, and A3 during the target time zone. Here, assume that the latest times included in the vehicle information for sections A1, A2, and A3 are 13:00, 14:00, and 17:00 respectively.

[0052] As shown in FIG. 7, the display control unit 33 deletes the thick line superimposed on section A1 for which 4.5 hours have elapsed from the latest time included in the vehicle information, and generates a map in which the traffic records of sections A2 and A3 for which 3.5 hours and 0.5 hours have elapsed are indicated by thick lines with transmittance of 75% and 0% respectively, and causes the display device 50 to display it.

[0053] FIG. 8 is another example when the traffic record display process is executed at the current time of 17:30.

[0054] When the second time has elapsed from the latest time included in the vehicle information as shown in FIG. 8, the display control unit 33 may indicate the passing record using a line other than the thick line instead of deleting (not overlapping) the thick line.

[0055] In the example of FIG. 8, as shown in FIG. 8, a broken line is superimposed on section A1 where 4.5 hours have elapsed from the latest time included in the vehicle information in the display control unit 33.

[0056] By doing so, it is easy to grasp that there is past vehicle information also for the section where the second time has elapsed from the latest time included in the vehicle information.

[0057] In the description of the passing record display process described above, as shown in FIGS. 6 to 8, the passing record before the elapse of the second time was indicated by a thick line. However, if the elapsed time can be represented by the thickness (size), color, or transparency, other line segments or figures other than the thick line may be used. Also, although the passing record after the elapse of the second time is indicated by a broken line, if it is different from before the elapse of the second time, other line segments or figures other than the broken line may be used. (Image display process) Next, the image display process in the information display system 10 will be described with reference to FIG. 9.

[0058] FIG. 9 is a flowchart showing the image display process in the first embodiment. The image display process is executed following the passing record display process.

[0059] The information display control device 30 receives a designation of a section for which an image is to be confirmed from an operator or the like (step S201). Here, the operator or the like designates a section on the map displayed on the display device 50 where the passing record is shown.

[0060] The display control unit 33 causes the image included in the vehicle information regarding the designated section to be displayed on the display device 50 (step S202).

[0061] FIG. 10 is an example of image display in the first embodiment. For example, when the map in FIG. 8 is being displayed, assume that an operator or the like designates section A3. Also, assume that for section A3, images I31, I32, and I33 are included in the vehicle information at times 15:00, 16:00, and 17:00, respectively. In this case, the display control unit 33 causes images I31 to I33 to be displayed in time series as shown in FIG. 10, for example. In FIG. 10, images I31 to I33 are displayed on the map as thumbnails. For example, if an operator designates any one of the images, the display control unit 33 may cause the display device 50 to display the image in an enlarged manner. Also, the image of the designated section may be an enlarged image instead of a thumbnail. The enlarged image may be displayed, for example, over the entire screen of the display device 50. In this case, the display control unit 33 may display marks such as arrows at the right end and left end of the image, and cause the previous and subsequent images in the time series to be displayed by clicking on the marks.

[0062] FIG. 11 is another example of image display in the first embodiment. In the example of FIG. 11, at the intersection of area B, the traffic performance in three different display modes is shown adjacent to each other. Here, as shown in FIG. 11, the traffic performance of sections B1 and B2, at which 0.5 hours and 3.75 hours have elapsed respectively from the latest time included in the vehicle information, are shown by thick lines with transmittance of 0% and 75%, respectively. Also, the traffic performance of section B3, at which 4.75 hours have elapsed, is shown by a dashed line.

[0063] For example, by referring to the traffic performance as shown in FIG. 11, an operator can estimate that the cause of the congestion in section B1 is near the intersection, considering that there has been no passage of vehicle 40 in section B3 for more than 4 hours and no passage of vehicle 40 in section B2 for more than 3 hours in area B. For example, in the event of a disaster, an operator can quickly grasp until what point in time it was possible to pass without specifying a time, just by checking the traffic performance on the map.

[0064] Thus, the operation of the first embodiment is completed.

[0065] In the first embodiment, the display control unit 33 showed the traffic performance of each section on the map based on the vehicle information. The display control unit 33 may further show the traffic jam situation of each section at the current time or the specified time on the map. In this case, the display control unit 33 calculates the moving speed of each vehicle 40 based on the vehicle information for a predetermined period including the current time or the specified time in each section, and determines the traffic jam situation by performing statistical processing such as calculating the average value. Also, the display control unit 33 may use traffic jam information obtained from a site or the like that distributes traffic jam information. Then, the display control unit 33 shows a predetermined figure or a predetermined line segment indicating a traffic jam in each section on the map in a manner corresponding to the traffic jam situation together with the traffic performance, and causes the display device 50 to display it. Also, the display control unit 33 may change at least one of the size, color, and transparency of the predetermined figure or the predetermined line segment indicating a traffic jam in the same manner as the display mode of the traffic performance so as to represent the passage of time. The display control unit 33 may also display information related to obstacles such as "U-turn" and "lane change" obtained from vehicle information or the like in addition to the traffic jam. Also, in the first embodiment, the display mode of the traffic performance was changed according to the elapsed time up to the starting point, which is the latest time included in the vehicle information. However, a slide bar for specifying the starting time may be provided on the screen displayed by the display control unit 33, and the display mode of the traffic performance and the traffic jam information up to the specified time may be changed.

[0066] Next, the effects of the first embodiment will be described.

[0067] According to the first embodiment, it is possible to quickly grasp the data acquired after the occurrence of a disaster. The reason is that the information display control device 30 acquires vehicle information including the location of each section on the road where each of the plurality of vehicles 40 has passed and the time when the vehicle has traveled at that location, and for each section on the road, generates a map showing the traffic performance calculated based on the vehicle information including the location on the section in different manners according to the elapsed time from the latest time included in the vehicle information including the location on the section, and causes the display device 50 to display it. Also, according to the first embodiment, by displaying the traffic jam information together with the traffic performance, it is possible to suggest to the operator the locations that should be prioritized for response.

[0068] (Second Embodiment) The second embodiment will be described.

[0069] FIG. 12 is a block diagram showing an example of the configuration of the information display control device 1 in the second embodiment.

[0070] The information display control device 1 includes an acquisition unit 2 and a control unit 3. The acquisition unit 2 acquires vehicle information including the location of each section on the road where each of the plurality of vehicles has passed and the time when the vehicle has traveled at that location. The control unit 3 generates a map showing the traffic performance calculated based on the vehicle information including the location on the section in different manners according to the elapsed time from the latest time included in the vehicle information including the location on the section for each section on the road, and causes a display device (not shown) to display it.

[0071] According to the second embodiment, it is possible to quickly grasp the time when the traffic performance has been obtained at each location after the occurrence of a disaster or the like. The reason is that the information display control device 1 acquires vehicle information including the location of each section on the road where each of the plurality of vehicles has passed and the time when the vehicle has traveled at that location, and for each section on the road, generates a map showing the traffic performance calculated based on the vehicle information including the location on the section in different manners according to the elapsed time from the latest time included in the vehicle information including the location on the section, and causes a display device (not shown) to display it. (Hardware configuration) In each of the above-described embodiments, each component of each device (such as the imaging device 20 and the information display control device 30) is shown as a functional block. Some or all of the components of each device may be realized by any combination of the computer 500 and a program.

[0072] Fig. 13 is a block diagram showing an example of a hardware configuration of a computer 500. Referring to Fig. 13, the computer 500 includes, for example, a CPU (Central Processing Unit) 501, a ROM (Read Only Memory) 502, a RAM (Random Access Memory) 503, a program 504, a storage device 505, a drive device 507, a communication interface 508, an input device 509, an output device 510, an input / output interface 511, and a bus 512.

[0073] The program 504 includes instructions for implementing each function of each device. The program 504 is stored in advance in the ROM 502, the RAM 503, or the storage device 505. The CPU 501 implements each function of each device by executing the instructions included in the program 504. For example, the CPU 501 of the information display control device 30 implements the functions of the vehicle information acquisition unit 31 and the display control unit 33 by executing the instructions included in the program 504. Also, for example, the RAM 503 of the information display control device 30 may store data of the storage unit 32.

[0074] The drive device 507 reads and writes data from and to the recording medium 506. The communication interface 508 provides an interface with a communication network. The input device 509 is, for example, a mouse or a keyboard, and receives information input from an operator or the like. The output device 510 is, for example, a display, and outputs (displays) information to an operator or the like. The input / output interface 511 provides an interface with peripheral devices. The bus 512 connects these hardware components. The program 504 may be supplied to the CPU 501 via a communication network, or may be stored in advance in the recording medium 506, read out by the drive device 507, and supplied to the CPU 501.

[0075] It should be noted that the hardware configuration shown in FIG. 13 is merely an example, and other components may be added, or some components may not be included.

[0076] There are various variations in the method of realizing each device. For example, each device may be realized by any combination of a different computer and program for each component. Furthermore, multiple components of each device may be realized by any combination of a single computer and program.

[0077] In addition, some or all of the components of each device may be realized by general-purpose or dedicated circuits including a processor, etc., or a combination of these. These circuits may be configured by a single chip, or may be configured by multiple chips connected via a bus. Some or all of the components of each device may be realized by a combination of the above-mentioned circuits, etc., and a program.

[0078] Furthermore, when some or all of the components of each device are realized by a plurality of computers, circuits, etc., the plurality of computers, circuits, etc. may be arranged in a centralized manner or in a distributed manner.

[0079] Further, the information display control device 30 may be arranged in the vehicle 40, or may be arranged at a location different from the vehicle 40 and connected to the imaging device 20 via a communication network.

[0080] As described above, the present disclosure has been described with reference to the embodiments, but the present disclosure is not limited to the above embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present disclosure within the scope of the present disclosure. Also, the configurations in each embodiment can be combined with each other as long as they do not deviate from the scope of the present disclosure.

Description of Reference Numerals

[0081] 1, 30 Information display control device 2 Acquisition unit 3 Control unit 10 Information display system 20 Imaging device 21 Imaging unit 22 Time acquisition unit 23 Location acquisition unit 24, 32 Storage unit 31 Vehicle information acquisition unit 33 Display control unit 40 Vehicle 500 Computer 501 CPU 502 ROM 503 RAM 504 Program 505 Storage device 506 Recording medium 507 Drive device 508 Communication interface 509 Input device 510 Output device 511 Input / output interface 512 Bus

Claims

1. An acquisition means for acquiring vehicle information including a point on a road through which each of a plurality of vehicles has passed and the time when the vehicle passed through the point; A control means for extracting vehicles traveling at a certain speed or higher based on the vehicle information, and causing a display means for an operator of a road management agency to display a traffic record indicating that the road was passable at a predetermined time based on the vehicle information of the extracted vehicles; The control means divides the elapsed time from the latest time included in the vehicle information of each point by a predetermined value into a plurality of time zones, and indicates the traffic record in different manners for each time zone. An information display control device.

2. The control means indicates the traffic record in each section in a predetermined time zone before the current time by a predetermined figure superimposed on the section on the map or a predetermined line segment; changes at least one of the size, color, and transparency of the predetermined figure or at least one of the thickness, color, and transparency of the predetermined line segment according to the elapsed time from the latest time included in the vehicle information of each section. The information display control device according to claim 1.

3. When the elapsed time from the latest time included in the vehicle information of each section is a predetermined value or more, the control means deletes the predetermined figure superimposed on the section or the predetermined line segment. The information display control device according to claim 2.

4. Each of the sections is a section obtained by dividing the road into a predetermined length. The information display control device according to claim 2 or 3.

5. The vehicle information includes an image captured at a point where the vehicle is traveling. The control means causes the display means to display an image included in the vehicle information including a point on a designated section. The information display control device according to any one of claims 1 to 4.

6. The control means causes the display means to display, in chronological order, images included in a plurality of the vehicle information including a point on the designated section based on the time included in each of the plurality of the vehicle information. The information display control device according to claim 5.

7. Acquire vehicle information including a point on a road through which each of a plurality of vehicles has passed and the time when the vehicle passed through the point, extract vehicles traveling at a certain speed or higher based on the vehicle information, and cause a display means for an operator of a road management agency to display a traffic record indicating that the road was passable at a predetermined time based on the vehicle information of the extracted vehicles. In the display of the traffic record, the elapsed time from the latest time included in the vehicle information at each location is divided into a plurality of time zones by a predetermined value, and the traffic record is shown in different modes for each time zone. Information display method. **Claim 8** Obtain the locations on the road where each of a plurality of vehicles has passed, and vehicle information including the time when the vehicle passed the location. Based on the vehicle information, extract vehicles traveling at a certain speed or higher, and cause a display means for an operator of a road management agency to display a traffic record indicating that the road was passable at a predetermined point in time, based on the vehicle information of the extracted vehicles. In the display of the traffic record, the elapsed time from the latest time included in the vehicle information at each location is divided into a plurality of time zones by a predetermined value, and the traffic record is shown in different modes for each time zone. A program that causes a computer to execute the process.

Images