The Research And Application Of Laser Scanner Base On Vehicle Measurement

In the rapid development of today's society, the traditional way of data acquisition has been far away to meet the needs of social development. It is more prominent particularly in the close-range data acquisition.Laser scanner comes into being with the rapid development of fast line scan camera photographic technologies, applications and development, Pos system, the improvement of precision, the traditional way of close-range data acquisition has been challenged, but now the laser scanner, linear array camera , Pos also have drawbacks, laser scanner measurement is not accurate position and the volume element can not be directly obtained, the linear camera on the target object's color can not obtain accurate, Pos attitude determination error, which makes laser scanner can not be directly in the close-range the use of measurement; Therefore, the three-dimensional laser scanning system as a close-range data acquisition system, more than a lot of technical problems must be resolved.To solve the above problems, this paper mainly studies content as follows:1.First introduced the measurement principle of laser scanner and laser scanner coordinate system . And lay the foundation for study laser measurement techniques.2.The main Laser measurement error caused by the target object's distance from the laser scanner and the different gray , so set up an experimental calibrate it and get the calibration parameters, for other laser measurement error sources such as laser current, laser speed generated and so is it and carry out calibration and give its calibration parameters.3. Another sensor of on-board laser scanning is IMU, set a joint calibration using laser and IMU and a variety of calibration is carried out after field application testing, and gives the conclusions on laser scanning analysis of vehicle measurement reliability and feasibility of the market.