Bulletin of Surveying and Mapping ›› 2023, Vol. 0 ›› Issue (10): 105-110.doi: 10.13474/j.cnki.11-2246.2023.0303

Previous Articles     Next Articles

3D and 2D LiDAR scan calibration method in heavy-haul railway detection equipment

CAO Haibin1, WANG Xinping2, WANG Wenbin1, ZHANG Zhengjun3, YIN Taijun3, ZENG Shan4   

  1. 1. China Shenhua Energy Co., Ltd., Beijing 100011, China;
    2. National Energy Group, Beijing 100034, China;
    3. Digitwinology International Co., Ltd., Qinhuangdao 066000, China;
    4. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2023-07-18 Published:2023-10-28

Abstract: The heavy-haul railway has a large traffic volume, heavy load and fast line wear and deterioration. In order to ensure the transportation safety,it is necessary to carry out static inspection and measurement on the line frequently and regularly.The mobile 3D laser system based on rail can quickly scan and efficiently obtain the 3D reality of railway passage,which is becoming a new method of heavy haul railway infrastructure measurement and detection. However,due to the limitation of the low accuracy of 3D laser data,it cannot accurately measure the track profile. This project designed a heavy duty railway inspection equipment integrating 3D phase laser scanner and 2D line laser scanner. In this paper,the calibration method of 3D and 2D laser scanner is proposed. Experimental result shows that the method can realize the accurate fusion of 3D laser data and 2D line laser data better less than 2 mm,which lays a good data foundation for the subsequent integrated measurement and analysis of railway infrastructure based on millimeter high-precision 3D laser point data.

Key words: heavy-haul railway, mobile measurement technology, multi-source laser data fusion, data calibration

CLC Number: