Road Segment Inspection Control for Lower Measurement Data Load

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Solution Overview

Problem

Existing road inspection methods using measurement vehicles generate a large amount of data, particularly when multiple vehicles and locations are involved, leading to inefficiencies in data transmission and processing.

Innovation Solution

A road inspection system that determines the need for inspection on individual road segments and controls measurement and data transmission accordingly, using a server and measurement vehicle configuration that includes an inspection determination part, a control part, and a road surface inspection part to analyze and manage data effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If measurement vehicles collect road information under automated driving mode with imaging devices and acceleration sensors, then measurement precision is improved, but the amount of data transmitted increases

Engineering Contradiction:
Improveroad information measurement precisionVSAvoidamount of measured data
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent extracts and transmits only the essential road information data elements needed for road surface state analysis, separating critical measurement data from redundant information. The system identifies and transmits only the necessary parameters (road surface state, curvature, gradient) while filtering out unnecessary data, thereby reducing transmission volume while maintaining measurement precision.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the road into multiple road sections and processes measurement data by section. This segmentation allows the system to manage and transmit data in manageable units, reducing the overall data burden while ensuring comprehensive coverage of the inspection area through structured data organization.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple measurement vehicles and locations are used for road inspection, then inspection coverage is improved, but the amount of measured data increases

Engineering Contradiction:
Improveinspection coverageVSAvoidamount of measured data
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent merges measurement data from multiple vehicles and locations into a unified road surface state analysis framework. By integrating data from multiple sources and associating it with specific road sections, the system achieves comprehensive inspection coverage while avoiding redundant data transmission through intelligent data consolidation and deduplication.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a universal data processing system that can handle measurements from multiple vehicles and various measurement locations through a common framework. The road surface state management apparatus universally processes data from different sources, associating all measurements with the appropriate road sections, thereby enabling multi-vehicle operations without proportionally increasing data transmission requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If all measured data is transmitted and analyzed, then road surface state analysis accuracy is improved, but data transmission efficiency deteriorates

Engineering Contradiction:
Improveroad surface state analysis accuracyVSAvoiddata transmission efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent performs preliminary association of measurement data with road sections before transmission. The system pre-processes measurements by linking them to specific road segments based on location information, filtering and organizing data in advance. This preliminary action ensures that only relevant, section-specific data is transmitted, maintaining analysis accuracy while improving transmission efficiency through pre-filtering.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20240175680A1Road inspection system, measurement vehicle, server, road inspection method, and program recording medium
Publication Date: 2024.05.30 NEC CORP
  • US20240175680A1 patent drawing
  • US20240175680A1 patent drawing
  • US20240175680A1 patent drawing

AI summary

A road inspection system includes: an inspection determination part that determines, regarding road segments, each of which is a unit obtained by dividing an inspection target road, a need for inspection for the individual road segment; a control part that controls, based on the need for inspection for the individual road segment, measurement of a road surface state(s) of the road performed by a measurement vehicle that is capable of measuring the road surface state(s) or transmission of measured data obtained by the measurement; and a road surface inspection part that analyzes measured data received from the measurement vehicle and performs inspection.