# US 12,180,660 B2 · Degradation display system, degradation display method, and recording medium

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- Number: US 12,180,660 B2
- Document ID: US12180660B2
- Status: Granted
- Kind: B2
- Application number: 17/910,422
- Filed: 2021-03-05
- Published: 2023-05-04
- Granted: 2024-12-31
- Earliest claimed: 2020-03-31
- Assignees: NEC Corporation
- Applicants: NEC Corporation
- Inventors: Chisato Sugawara; Yosuke Kimura
- Web page: https://patentgrep.com/patent/US12180660B2

## CPC

- E01C 23/01: Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed {or reference line} supports (form rails E01C19/50); Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs (E01C23/07 takes precedence; measuring roughness or irregularity in general G01B)
- G01B 5/28: for measuring roughness or irregularity of surfaces
- G01C 21/367: {Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker}
- G01C 21/3697: {Output of additional, non-guidance related information, e.g. low fuel level (G01C21/3679 takes precedence)}
- G06Q 50/26: Government or public services (business processes related to the transportation industry G06Q50/40)
- G06T 7/55: from multiple images
- G06T 7/62: of area, perimeter, diameter or volume
- G06T 11/65: on geographic maps
- G08G 1/0129: {for creating historical data or processing based on historical data}
- G09B 29/00: Maps; Plans; Charts; Diagrams, e.g. route diagram (star maps G09B27/04; devices for holding or supporting maps A47B97/02; for computing purposes G06G1/14, G09B1/16; display boards G09F)
- G08G 1/0112: {from the vehicle, e.g. floating car data [FCD]}
- G08G 1/012: {from other sources than vehicle or roadside beacons, e.g. mobile networks}
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93})
- G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B)

## Abstract

A degradation display system according to an aspect of the present disclosure includes: at least one memory configured to store instructions, and at least one processor configured to execute the instructions to perform: acquiring a degradation index indicating a degradation state of a road section, changing display form of a map in accordance with a display range and a scale of the map, and superimposing degradation information on the map, the degradation information based on the degradation index of an area on the map or the road section in the area, wherein the superimposing includes: superimposing, for each area, the degradation information in a display form corresponding to a degree of the degradation index of the area in a case that the map is at a first scale, and superimposing, for each road section, the degradation information in a display form corresponding to a degree of the degradation index of the road section in a case that the map is at a second scale larger than the first scale.

## Claims

### Claim 1

A degradation display system comprising:
at least one memory configured to store instructions; and
at least one processor configured to execute the instructions to perform:
acquiring a degradation index indicating a degradation state of a road section;
changing display form of a map in accordance with a display range and a scale of the map; and
superimposing degradation information on the map, the degradation information based on the degradation index of an area on the map or the road section in the area, wherein
the superimposing includes:
superimposing, for each area, the degradation information in a display form corresponding to a degree of the degradation index of the area in a case that the map is at a first scale, and
superimposing, for each road section, the degradation information in a display form corresponding to a degree of the degradation index of the road section in a case that the map is at a second scale larger than the first scale.

### Claim 2 (depends on 1)

The degradation display system according to claim 1, wherein the at least one processor is further configured to execute the instructions to perform:
determining the degree of the degradation index of the area based on a degradation index of the road section in the area.

### Claim 3 (depends on 1)

The degradation display system according to claim 1, wherein the at least one processor is further configured to execute the instructions to perform:
displaying a road image of the road section, and superimposing the degradation information on the road image in a display form corresponding to the degradation index of the road image, the degradation information based on the degradation index of the road image.

### Claim 4 (depends on 1)

The degradation display system according to claim 1, wherein the at least one processor is further configured to execute the instructions to perform:
determining the degree of the degradation index of the area based on at least one degradation index level of each degradation index.

### Claim 5 (depends on 4)

The degradation display system according to claim 4, wherein
the degree of the degradation index of the area is a representative level representing the degradation index of the area, the representative level determined based on the degradation index level for each road section in the area.

### Claim 6 (depends on 4)

The degradation display system according to claim 4, wherein
the degree of the degradation index of the area is a representative level representing the degradation index of the area, the representative level determined based on a ratio of the degradation index level that is highest for the degradation index of each road section.

### Claim 7 (depends on 4)

The degradation display system according to claim 4, wherein
the degree of the degradation index of the area is a representative level of the degradation index of the area, the representative level determined based on a ratio of the representative level for each road section in the area.

### Claim 8 (depends on 1)

The degradation display system according to claim 1, wherein the at least one processor is further configured to execute the instructions to perform:
superimposing, for each area, the degradation information on the map by using at least one of a color, a transmittance, and a thickness of a frame line partitioning the area corresponding to the degree of the degradation index of the road section in the area in a case that the map is at the first scale, and
superimposing, for each road section, the degradation information on the map by using at least one of a color, a transmittance, and a shape of an arrow indicating a road section in a case that the map is at the second scale larger than the first scale.

### Claim 9 (depends on 3)

The degradation display system according to claim 3, wherein the at least one processor is further configured to execute the instructions to perform:
superimposing the degradation information on the road image by using at least one of a color, a transmittance, a shape, a size, and an angle with respect to a road of an arrow indicating a traveling direction in a road section, the degradation information based on the degradation index of the road image.

### Claim 10 (depends on 1)

The degradation display system according to claim 1, wherein the at least one processor is further configured to execute the instructions to perform:
superimposing information on the map, the information including a presence of a pot hole, a degradation type, or a degradation factor on the area or the road section.

### Claim 11

A degradation display method comprising:
acquiring a degradation index indicating a degradation state of a road section;
changing display form of a map in accordance with a display range and a scale of the map;
superimposing degradation information on the map, the degradation information based on the degradation index of an area on the map or the road section in the area;
superimposing, for each area, the degradation information in a display form corresponding to a degree of the degradation index of the area in a case that the map is at a first scale; and
superimposing, for each road section, the degradation information in a display form corresponding to a degree of the degradation index of the road section in a case that the map is at a second scale larger than the first scale.

### Claim 12

A non-transitory recording medium that stores a program causing a computer to perform:
acquiring a degradation index indicating a degradation state of a road section;
changing display form of a map in accordance with a display range and a scale of the map;
superimposing degradation information on the map, the degradation information based on the degradation index of an area on the map or the road section in the area;
superimposing, for each area, the degradation information in a display form corresponding to a degree of the degradation index of the area in a case that the map is at a first scale; and
superimposing, for each road section, the degradation information in a display form corresponding to a degree of the degradation index of the road section in a case that the map is at a second scale larger than the first scale.

### Claim 13 (depends on 4)

The degradation display system according to claim 4, wherein
the degree of the degradation index of the area is a representative level representing the degradation index of the area, the representative level determined based on an average value of the degradation index levels of each road section in the area.
