Research on Automobile Outline Dimension Measurement Method Based on Point Cloud Technology
Aiming at the new requirements for the measurement of automobile outline dimension in"Motor Vehicle Safety Technology Inspection Items and Methods"(GB 38900-2020),the commonalities in the shape of tractor-trailers and all kinds of trailers after they are connected,and the key positions of outline segmentation are studied by adopting the whole automobile point cloud data technology.By improving the 3D point cloud segmentation algorithm,a new measurement method is proposed to measure the outline dimension automobile trains and trailers in one and the same way.Without changing the hardware,the method can realize that the parameters of the outline dimension of automobile trains(tractor and semi-trailer combinations)can be measured in one measurement by upgrading the software and algorithms only.The feasibility of the proposed method is verified by using various structural trailers as test cases,and the effectiveness of the proposed method is analyzed through adaptive tests.The research results show that the method can fully meet the new requirements in GB 38900-2020,with wide applicability and high measurement accuracy.The method can improve the traditional methods'measurement time from"hourly"to"secondly",which significantly improves the working efficiency of related organizations.
万方数据
维普
