Mesh-Based Road Section Diagnostic Device for Dynamic Infrastructure Management

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Solution Overview

Problem

Existing methods for managing road-related infrastructure, such as road surfaces and guardrails, fail to accurately reflect the latest positions due to maintenance and construction, leading to ineffective management when map information is not up-to-date.

Innovation Solution

An infrastructure diagnostic device and method that divides a road into sections by meshes based on sensor information collected from moving vehicles, allowing for real-time determination and management of road section states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If map information is used to divide roads into sections, then infrastructure management can be organized systematically, but the position information becomes outdated due to maintenance and construction

Engineering Contradiction:
Improvesystematic organization of infrastructure managementVSAvoidposition accuracy of road sections
Core Design Contradiction:
Stability of the object's compositionVSMeasurement precision

Solution Approach 1:

The patent transitions from static map-based road section definitions to dynamic movement path-based sections. The system continuously updates road section information based on actual vehicle movement trajectories, ensuring position accuracy reflects current road conditions despite maintenance or construction changes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system pre-divides the ground surface into meshes and prepares the infrastructure management framework in advance. When movement path data becomes available, the system can quickly generate accurate road sections by overlaying the movement paths on the pre-prepared mesh structure, combining systematic organization with up-to-date position information.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If actual movement path data is collected to update road positions, then position accuracy is improved, but data collection complexity and processing requirements increase

Engineering Contradiction:
Improveposition accuracy of road sectionsVSAvoiddata collection and processing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a computational intermediary that processes movement path data. The system collects raw movement data from vehicles, processes it through algorithms that match movement paths with pre-divided meshes, and generates updated road section definitions. This intermediary processing layer simplifies the overall system by automating the complex data matching and section generation tasks.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The ground surface is pre-divided into a mesh structure, and movement paths are segmented into discrete position points. This segmentation allows the system to process large amounts of movement data by comparing individual mesh cells rather than processing continuous geographic information, reducing computational complexity while maintaining position accuracy.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If road sections are divided based on predetermined mesh sizes, then systematic division is achieved, but adaptability to actual road variations is reduced

Engineering Contradiction:
Improvesystematic road section divisionVSAvoidadaptation to actual road positions
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by allowing road section definitions to vary locally based on actual movement paths while maintaining the overall systematic mesh structure. Each mesh cell can be independently assigned to road sections based on whether it contains movement path data, enabling the system to adapt to local road variations such as maintenance areas or construction zones while preserving the global systematic organization.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20240117575A1Infrastructure diagnostic device, infrastructure diagnostic method, and recording medium
Publication Date: 2024.04.11 NEC CORP
  • US20240117575A1 patent drawing
  • US20240117575A1 patent drawing
  • US20240117575A1 patent drawing

AI summary

An infrastructure diagnostic device 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: generate a road section by dividing, by meshes, a movement path of a moving body collected from the moving body moving on a road, the meshes being obtained by dividing a ground surface into a predetermined size; and determine and output a state of the road section based on sensor information of the road section collected from the moving body.