Research on Continuous Scanning Path Planning for High Precision Measurement of Laser Scanner for Sheet Metal Parts
Line laser detection technology has been widely used in automobile,aerospace and other com-plex parts detection for its non-contact and high precision measurement characteristics.Continuous scanning path planning for laser scanner has an important influence on the efficiency and accuracy of 3D sheet metal parts.Line laser scanner has two noticeable characteristics:continuous measurement;linear distribution of data collected in a single frame.Therefore,the traditional discrete programming method based on viewpoint selecting is difficult to manage the automatic and full surface coverage measurement of 3D sheet metal parts.Firstly,a multi-objective optimization model of laser scanner continuous scanning path was construc-ted by considering the path length and incidence angle of the sensor.Then,the search random tree planning strategy is introduced to realize the full surface coverage path planning of complex structural parts by itera-tive optimization of continuous scanning accuracy.Finally,the application of the door assembly scanning case was verified,and the effectiveness and feasibility of the proposed method was verified by comparison and analysis with the traditional 3D coverage path planning method.
sheet metal partslaser measurementcontinuous path planningcoverage growing random tree algorithm
NETL
NSTL
万方数据
维普
