Road Surface Property Acquiring Device Using Past Data Guidance
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Solution Overview
Problem
Current methods for measuring road surface properties are inefficient when re-measuring areas with past splits, recesses, and projections, as they require manual targeting and lack real-time, reliable data comparison for rapid assessment.
Innovation Solution
A road surface property acquiring method and device that guides a vehicle to specified points, displays past and present road surface data, issues warnings for deviations, and saves data on areas with significant differences, using past data to efficiently identify and mark defective areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual targeting and measurement methods are used for re-measuring road surfaces, then measurement flexibility is maintained, but measurement efficiency and productivity deteriorate due to time-consuming manual operations
Solution Approach 1:
The system performs preliminary actions by automatically acquiring and storing past road surface measurement data, creating a digital reference map before the actual re-measurement process. This preliminary data preparation enables the vehicle to be automatically guided to defective areas without manual intervention, significantly reducing measurement time and improving productivity
Solution Approach 2:
The patent replaces manual mechanical targeting operations with an automated optical-electronic system. The road surface property acquiring device uses light projection and imaging to automatically detect and guide the vehicle to defective areas, substituting manual mechanical operations with automated optical measurement and control systems
2Reliability
If comprehensive road surface re-measurement is performed without reference to past data, then complete current state information is obtained, but measurement time and resource consumption increase
Solution Approach 1:
The system implements feedback by comparing current road surface measurement data with past measurement data. The comparison results provide feedback that identifies defective areas requiring attention, enabling targeted re-measurement that maintains data reliability while reducing overall measurement time by focusing only on areas with significant changes
Solution Approach 2:
The patent extracts and utilizes only the relevant portions of past measurement data that correspond to potential defective areas. By extracting and comparing specific regions of interest rather than processing entire road surfaces, the system maintains reliable comparison capabilities while significantly reducing measurement time and computational resources
3Measurement precision
If detailed road surface property data are collected and processed, then measurement precision and reliability improve, but data processing complexity and device complexity increase
Solution Approach 1:
The patent segments the road surface measurement data into distinct categories and regions, processing different types of data (height information, reflectivity, texture) separately and independently. This segmentation allows for high measurement precision in each parameter while simplifying overall data processing by handling smaller, organized data subsets rather than large unstructured datasets
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and reliable measurement of road surface properties by comparing past and present data, providing real-time feedback and efficient maintenance by highlighting areas needing attention.
Implementation Method 1
a light projecting means for projecting light onto a road surface
Implementation Method 2
a means for imaging a light irradiation line
Data Source
AI summary
To rapidly and reliably measure a road surface property using measurement results and determination results of a road surface in the past. A vehicle mounted with a road surface property acquiring device is guided to a specified point on a road and measurement is carried out. The past road surface data on a past road surface property is acquired, a present position of the vehicle is acquired, and a past road surface property image representing a feature amount of the road surface property in a range including the present position created based on the past road surface data is displayed; and the vehicle is guided from the present position to a specified area while measuring a state of the road surface with the road surface property acquiring device.