基于三维结构光振动融合的道路平整度检测方法和设备
By combining three-dimensional structured light and accelerometers to calculate vehicle vibration displacement and correct road elevation data, and by using dynamic Fourier filtering technology, the vibration impact of vehicle-mounted laser profilers when detecting road smoothness is solved, and accurate detection of full-width longitudinal profile smoothness is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TONGJI UNIV
- Filing Date
- 2024-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing vehicle-mounted laser profilers cannot effectively offset the impact of vehicle vibration on the test results when detecting road smoothness, especially at curves where they are difficult to accurately analyze road condition indicators such as wear, bumps, and texture depth.
By acquiring vehicle driving status data, combined with a 3D structured light scanner and an accelerometer, the vertical vibration displacement of the vehicle is calculated. Then, the road cross-sectional elevation data is corrected using double integral and dynamic Fourier bandpass filtering techniques. Finally, the road surface smoothness index is calculated using a quarter-vehicle model.
It improves the accuracy of road smoothness detection, can accurately obtain the smoothness index of the entire longitudinal section, analyze road surface conditions such as wear, bumps and texture depth, and provide more accurate data support.
Smart Images
Figure CN118422551B_ABST
Abstract
Citation Information
Patent Citations
CN114910046B
CN101845788A
JP2005043181A