JP-2026074654-A - Road maintenance support system, image processing server, information and communication terminal, and image processing method

JP2026074654AJP 2026074654 AJP2026074654 AJP 2026074654AJP-2026074654-A

Abstract

[Problem] To provide a road maintenance support system suitable for assisting with road environment maintenance and management tasks, including manual labor. [Solution] The image processing server constituting the system is communicatively connected to an information and communication terminal and a communication terminal corresponding to a work vehicle for performing predetermined tasks related to road maintenance. It includes a data communication processing unit 61 that acquires location information of the work vehicle and work status information relating to the work status of the predetermined task corresponding to the location information from the information and communication terminal, a map information acquisition unit 63 that acquires map information, and a video playback processing unit 66 that generates a first image in which a sign image for recognizing the current location of the work vehicle is superimposed on a road on a map, and a second image which is an image in which information relating to the current work status of the work vehicle is superimposed on the first image. The data communication processing unit 61 also transmits the image data of the image generated by the video playback processing unit 66 to the communication terminal. [Selection Diagram] Figure 3

Inventors

布施光弘
高野淳
池田博久
森田明男
古村千里

Assignees

首都高技術株式会社
首都高速道路株式会社
株式会社ファンクリエイト

Dates

Publication Date: 20260507
Application Date: 20241021

Claims (19)

A road maintenance management support system comprising: an information and communication terminal corresponding to a work vehicle for performing prescribed work related to the maintenance or management of the road environment of a highway; a communication terminal; and an image processing server that is connected to the information and communication terminal and the communication terminal via a communication line, The aforementioned image processing server is A first work information acquisition means that acquires location information of the work vehicle from the information and communication terminal and work status information relating to the work status of the predetermined work corresponding to the location information, A means for acquiring map information, Image generation processing means for generating a first image in which a sign image for recognizing the current location of the work vehicle is superimposed on the road on the map, and a second image which is an image in which information regarding the current working status of the work vehicle is superimposed on the first image. The system includes an image data transmission means for transmitting image data of the image generated by the image generation processing means to the communication terminal, The aforementioned information and communication terminal is This is a portable terminal that can be carried by the occupants of the aforementioned work vehicle. A means for acquiring location information to obtain the location information of the device, An input means on which the crew member can input information, A second work information acquisition means that acquires the work status information based on the input information input via the input means, The system includes an information transmission means that transmits the location information acquired by the location information acquisition means and the work status information acquired by the second work information acquisition means to the image processing server, The aforementioned communication terminal is A road maintenance support system characterized by comprising image display means for displaying an image based on the image data from the image processing server.
The communication terminal includes instruction transmission means for transmitting instructions related to image display to the image processing server. The road maintenance support system according to claim 1, characterized in that the image generation processing means generates a second image in which information regarding the working status of the work vehicle corresponding to the instruction is superimposed on the first image based on an instruction from the communication terminal.
The road maintenance management support system according to claim 2, characterized in that the predetermined work includes at least one of the following: snow and ice response work, which is work related to maintaining or managing the road environment of the expressway in relation to snow and ice, and cleaning work for maintaining the road environment of the expressway.
The road maintenance management support system according to claim 3, characterized in that the work status information includes information on the worker performing the predetermined work, information indicating the work content, information on the date and time of the work, identification information for identifying the work location, and information indicating the work status.
The aforementioned information and communication terminal is equipped with a means for taking images, The road maintenance support system according to claim 4, characterized in that the information indicating the work status includes image information relating to the work status taken by the photographic means outside the vehicle.
The second work information acquisition means acquires, as work status information, information indicating the start of travel of the work vehicle from the base, information indicating the start of work, and information indicating the end of work. The first work information acquisition means, upon acquiring the information indicating the start of driving, starts acquiring the location information from the information communication terminal that is the source of the information, The image processing server includes a driving trajectory recording means that, when the first work information acquisition means acquires information from the information communication terminal indicating the start of the work, records the driving trajectory based on the location information acquired by the first work information acquisition means, and when the first work information acquisition means acquires information from the information communication terminal indicating the end of the work, terminates the recording of the driving trajectory. The road maintenance support system according to claim 4, characterized in that the image generation processing means generates a third image in which the driving trajectory recorded by the driving trajectory recording means is superimposed along the road on the map.
The aforementioned snow and ice countermeasures include work that is repeatedly performed on the same road section. The work status information corresponding to the snow and ice countermeasure work further includes information on the number of times the work is repeated, The second work information acquisition means acquires information indicating the number of repetitions as work status information, The road maintenance support system according to claim 6, characterized in that the image generation processing means generates a third image in which the driving trajectory in the time range is superimposed and color-coded according to the number of repetitions, based on the time range instructed by the communication terminal and the information on the number of repetitions acquired by the first work information acquisition means.
The aforementioned repeated operations include the operation of spraying salt water on the road surface. The road maintenance support system according to claim 7, characterized in that the image generation processing means generates a fourth image in which a plant sign image for recognizing the location of a brine plant that stores brine and sodium chloride for producing brine is superimposed on the map, and a fifth image which is an image in which information regarding the inventory status of brine and sodium chloride at the brine plant in response to instructions from the communication terminal is superimposed on the fourth image.
The road maintenance management support system according to claim 8, characterized in that the image generation processing means generates a fifth image displaying information showing changes in the inventory status of the brine plant at predetermined intervals in response to instructions from the communication terminal.
The aforementioned snow and ice response operations include patrol operations for snow and ice on the aforementioned expressway, The work status information corresponding to the patrol work includes patrol report information which includes information indicating the condition of the road surface at the road location to be patrolled, information on the weather at the road location, and information on images of the road surface at the road location taken by the photographic means. The road maintenance support system according to claim 5, characterized in that the image generation processing means generates a sixth image in which a reporting sign image for recognizing the reporting location of the patrol report information is superimposed on the road on the map, using the location information obtained when the first work information acquisition means acquires the patrol report information as reporting location information, and a seventh image in which a patrol report including the patrol report information corresponding to the reporting sign image corresponding to the instruction from the communication terminal is superimposed on the sixth image.
The second work information acquisition means acquires work status information corresponding to the cleaning work, including information indicating departure from the base, information indicating the start of work, information on at least images relating to the work status from among images relating to the work status and images of abnormal areas taken by the photography means, information indicating completion of work, and information indicating arrival at the base. The first work information acquisition means, upon acquiring information indicating that the base has departed, starts acquiring the location information from the information communication terminal that is the source of the information, The aforementioned image processing server is A first travel trajectory recording means records a first travel trajectory, which is a travel trajectory during movement without cleaning work based on the location information acquired by the first work information acquisition means, when the first work information acquisition means acquires information from the information communication terminal indicating that the base has departed or information indicating that the work has been completed, and terminates recording of the first travel trajectory when the first work information acquisition means acquires information from the information communication terminal indicating that the base has arrived, The system includes a second travel trajectory recording means which, when the first work information acquisition means acquires information from the information communication terminal indicating the start of the work, records a second travel trajectory which is a travel trajectory involving cleaning work based on the location information acquired by the first work information acquisition means, and when the first work information acquisition means acquires information from the information communication terminal indicating the end of the work, it terminates the recording of the second travel trajectory. The road maintenance support system according to claim 5, characterized in that the image generation processing means generates an eighth image in which the first and second driving trajectories recorded by the first and second driving trajectory recording means are superimposed on the map with the first and second driving trajectories color-coded along the roads.
The image processing server includes a cleaning report generation means that generates a cleaning report based on work status information corresponding to the cleaning work from the information and communication terminal, which includes information on the worker who performed the cleaning work, information indicating the content of the cleaning work, information on the work location, time information for departure from the base, start of work, end of work and arrival at the base, and at least information on images related to the work status and images of abnormal locations, wherein the cleaning report includes information on images related to the work status and images related to abnormal locations. The road maintenance support system according to claim 5, characterized in that the image generation processing means generates a ninth image displaying a summary list of the cleaning reports searched using search conditions corresponding to instructions from the communication terminal, and generates a tenth image in which the details of the cleaning report corresponding to the summary selected from the summary list are superimposed on the ninth image in response to instructions from the communication terminal.
The information transmission means transmits images relating to the status of the cleaning work and images of the abnormal areas to the image processing server, along with information on the date and time of transmission and location information at the time of transmission. The road maintenance support system according to claim 12, characterized in that the image generation processing means generates an 11th image in which photographic marker images for recognizing the transmission order and transmission position of images relating to the work status of the cleaning work and images of abnormal locations are superimposed on the road on the map, and a 12th image in which information relating to the work status or images of abnormal locations corresponding to the selection result is superimposed on the 11th image based on the selection result of the photographic marker images in the 11th image from the communication terminal.
The aforementioned predetermined work includes road surface temperature measurement work using a work vehicle equipped with a first road surface temperature sensor for measuring road surface temperature, a position information measuring device for measuring the vehicle's position information, and a communication device capable of communicating with the image processing server via the communication line, The aforementioned expressway has second road surface temperature sensors installed at predetermined intervals along the road to measure the road surface temperature throughout the entire road or in a predetermined area. The aforementioned road temperature measurement operation is performed on road locations where the road temperature measured by the second road temperature sensor is below a predetermined temperature or where the change in said road temperature is above a predetermined temperature. The road maintenance support system according to claim 3, characterized in that the image generation processing means generates a 13th image in which the distribution of measured road surface temperatures at the relevant road location is superimposed along the road on a map, based on road surface temperature information and location information from a work vehicle corresponding to the road temperature measurement work using the first road temperature sensor.
The road maintenance support system according to claim 14, characterized in that the image generation processing means generates, as the 13th image, an image in which the roads on the map are color-coded along the roads on the map based on the measured values.
The road maintenance support system according to claim 3, characterized in that the image generation processing means generates an image as the first image by superimposing multiple different types of sign images, each corresponding to the work content of the predetermined work, each corresponding to the movement state of the work vehicle, or each corresponding to the work state of the predetermined work, and then generates the first image on the map by superimposing only the type of sign image corresponding to the instruction from the communication terminal, based on the instruction regarding the work content, movement state, or work state.
An information and communication terminal corresponding to a work vehicle for performing prescribed tasks related to the maintenance or management of the road environment of a highway, and an image processing server that is connected to the communication terminal via a communication line, A work information acquisition means that acquires location information of the work vehicle from the information and communication terminal and work status information relating to the work status of the predetermined work corresponding to the location information, A means for acquiring map information, Image generation processing means for generating a first image in which a sign image for recognizing the current location of the work vehicle is superimposed on the road on the map, and a second image which is an image in which information regarding the current working status of the work vehicle is superimposed on the first image. An image processing server characterized by comprising an image data transmission means for transmitting image data of an image generated by the image generation processing means to the communication terminal.
An information and communication terminal for a work vehicle used to perform prescribed tasks related to the maintenance or management of the road environment on a highway, This is a portable terminal that can be carried by the occupants of the aforementioned work vehicle. The image processing server is connected via a communication line, enabling communication. A means for acquiring location information to obtain the location information of the device, An input means on which the crew member can input information, A work information acquisition means that acquires work status information relating to the work status of a predetermined work based on input information input via the input means, An information communication terminal characterized by comprising: an information transmission means for transmitting the location information acquired by the location information acquisition means and the work status information acquired by the work information acquisition means to the image processing server.
An information and communication terminal corresponding to a work vehicle for performing prescribed work related to the maintenance or management of the road environment of a highway, and an image processing method for an image processing server that is connected to the communication terminal via a communication line, The steps include: acquiring location information of the work vehicle from the information and communication terminal and work status information relating to the work status of the predetermined work corresponding to the location information; Steps to obtain map information, The steps include generating a first image in which a sign image for recognizing the current location of the work vehicle is superimposed on the road on the map, The steps include generating a second image which is an image in which information regarding the current working status of the work vehicle is superimposed on the first image, An image processing method characterized by comprising the step of transmitting the image data of the generated image to the communication terminal.

Description

An application for application of Article 30, Paragraph 2 of the Patent Law was filed. The presentation was given at the lecture meeting of the 27th Symposium on Bridges of the Japan Society of Civil Engineers on August 8, 2024. This invention relates to a road maintenance support system, an image processing server, an information and communication terminal, and an image processing method. Traditionally, when inspecting road structures, including road surface structures and auxiliary structures installed around the road surface, inspectors have reviewed images captured by cameras mounted on inspection vehicles. Patent Document 1 discloses a technology in which a central control unit, wirelessly connected to the work command control units mounted on each of different road maintenance vehicles such as optical snowplows, wet salt spreaders, watering trucks, and signage devices, controls the work command control units of each vehicle, and this single central control unit issues work commands corresponding to the individual work processes of each vehicle. Japanese Patent Publication No. 2011-8383 This is a block diagram showing an example configuration of a road maintenance support system according to the first embodiment.This figure shows an example of the hardware configuration of the image processing server 100.This is a block diagram showing an example of the functional configuration of the image processing server 100.This is a flowchart showing the vehicle information display process.This figure shows an example of the system's main screen.This figure shows an example of the main screen after the display has been switched.This is a flowchart showing the video playback process.This figure shows an example of the screen display when video captured by traffic control PC 103 is played back on the main screen.This figure shows an example of the screen display when video captured by the wearable camera 300 is played back on the main screen.This is a flowchart showing the road temperature information display process.This figure shows an example screen displaying the road temperature measurement area of a highway image on the main screen, color-coded for clarity.This figure shows an example of a screen displaying a graph of road temperature measurements for each kilometer post within a specified time range for the selected route.This is a flowchart showing the vehicle monitoring process for snow and ice conditions.This figure shows an example of a screen for monitoring snow-freezing vehicles that are undergoing saltwater spraying treatment.Figures (a) to (e) show examples of how to display icons and summary information for moving and working vehicles, depending on the type of vehicle designed for handling snow and ice.This is a flowchart showing the process for displaying snow and ice patrol reports.This figure shows an example of the display screen for viewing snow and ice patrol reports.This figure shows an example of the display screen for the detailed view of the snow and ice patrol report.This is a flowchart showing the process for displaying a list of snow and ice patrol reports.This figure shows an example of the display screen for the list of snow and ice patrol reports.This flowchart shows the inventory status display process for a brine plant.This is a diagram showing an example of a display of the inventory status of a brine plant.This flowchart shows the process for displaying the inventory status list of the brine plant.This figure shows an example of the display screen for the saltwater plant inventory status list.This is a flowchart showing the process for supporting the reporting of work related to snow and ice countermeasures.Figures (a) to (c) show examples of operation screens used when reporting the status of anti-freezing work.Figures (a) and (b) show examples of operation screens used when reporting the status of anti-freezing work.Figures (a) and (b) show examples of operation screens used when reporting the status of anti-freezing work.Figures (a) to (d) show examples of operation screens for setting the type of work for each task other than anti-freezing work.Figures (a) to (c) show examples of operation screens used when reporting inventory levels in a brine plant.Figures (a) to (d) show examples of operation screens used when reporting the work status and reporting items for snow and ice patrol work.Figures (a) to (c) show examples of operation screens used when reporting the work status and reporting items for snow and ice patrol work.This figure shows an example of the operation screen used when reporting the work status and reporting items for snow and ice patrol work.This is a block diagram showing an example configuration of a road maintenance support system according to the second embodiment.Figure 34 is a block diagram showing an example of the functional configuration of the image processing server 100A.This is a flowchart showing the process for displaying cleaning work informati