汽车二维运动参数测试系统开发研究

摘要

With the pursuit of low cost and high precision of the two dimensional automobile track test facility ,a new testing method based on the CM OS sensor is proposed .By designing an appropriate op‐tical imaging path and analyzing the image‐forming principle ,the images can be processed by combi‐ning with the programmable DSP .The testing track could be received by the software LabVIEW , w hich could also eliminate the boundary limit on the display system and realize the coordinate trans‐formation between the sensor system and road testing system .The analyses show that this system has the advantages of low cost ,quick response ,high precision and not being limited by the test condition . Thus ,the proposed system could be suitable for a variety of automobile performance tests .%针对当前汽车二维运动参数测试装备对低成本、高精度的追求，提出基于CMOS图像传感器的新型测试方案，设计了合适的光学系统，结合可编程的DSP芯片实现对拍摄图像的分析处理。利用LabVIEW编程消除了显示系统的边界限定，实现了CMOS传感器坐标系与道路坐标系的坐标转换并完成汽车二维运动参数的测试。该方案具有成本低、响应快、不受道路条件限制等优点，可应用于多种汽车性能测试。