铁路接触网导线几何参数的激光测量系统

Laser Measurement System of Railway Contact Cable about Geometrical Parameters

为了实现对接触网导线几何参数的实时、有效检测,从而确保铁路安全行驶,延长导线使用时间,提出了基于激光的铁路接触网导线几何参数的测量系统,该系统中应用了距离传感器,角度传感器,位移传感器,CCD摄像头和嵌入式数据处理技术。另外详细介绍了该系统的体系结构和测量原理的数学模型和误差范围,并对该系统的主要参数测量进行了分析和评估。与先前的测量结果相比,该测量系统可旋转方向,从而使铁路接触网的测量速度加快,测量精度可以达到±5 mm。

In order to detect geometrical parameters of contact cable in real-time and effectively,ensure the running of railway and prolong the using time of laser cable,the laser measurement system of contact cable about geometrical parameters is proposed. Distance sensor,angle sensor,displacement sensor,CCD camera and embedded data processing technology are applied to this system. The architecture and measurement principle of the system are introduced,the mathematics model and the error range are described in detail,and the main parameter measurement indetermination degree of the system are analyzed and evaluated. Compared with previous measurements,orientation can be implemented in this measurement system,besides the measurement of railway contact net＇s parameters can speed up,whose accuracy can reach ±5 mm.