基于双目视觉的接触网几何参数测量系统

发布时间：2018-01-24 12:30

本文关键词： 接触网双目视觉非接触式测量立体控制场校准　出处：《红外与激光工程》2014年06期 　论文类型：期刊论文

【摘要】：接触网是在电气化铁路中沿钢轨上空"之"字形架设的,供受电弓取流的高压输电线,其担负着把从牵引变电所获得的电能直接输送给电力机车使用的重要任务。针对传统的接触网几何参数测量方法中测量效率低下、精度不高的问题,设计了一种快速、高精度测量系统。系统基于双目视觉测量原理,由指示激光器进行特征指引,通过两台高分辨率摄像机采集测量特征并进行图像处理和三维解算,实现接触网几何参数的实时测量。实验结果表明:系统测量的重复性精度可以达到1mm,实现了接触网几何参数的实时、可靠测量,为接触网的日常维护与检修提供了理论依据。
[Abstract]:The catenary is a high-voltage transmission line erected along the "zigzag" above the rail in an electrified railway for the current of the pantograph. It undertakes the important task of directly transmitting the electric energy from traction substation to the electric locomotive, aiming at the problems of low efficiency and low precision in the traditional methods of measuring the geometric parameters of the catenary. A fast and high precision measurement system is designed. The system is based on the binocular vision measurement principle and is guided by the indication laser. The real time measurement of the geometric parameters of the catenary is realized through the acquisition of measurement features by two high resolution cameras, image processing and 3D calculation. The experimental results show that the repeatability of the system can reach 1 mm. The real-time and reliable measurement of catenary geometric parameters is realized, which provides the theoretical basis for the daily maintenance and maintenance of catenary.
【作者单位】：天津大学精密测试技术及仪器国家重点实验室;清华大学精密仪器系;天津津航技术物理研究所;
【分类号】：TM922.5
【正文快照】： 0引言接触网是在电气化铁道中,沿钢轨上空“之”字形架设的,供受电弓取流的高压输电线,担负着把从牵引变电所获得的电能直接输送给电力机车使用的任务。接触线与受电弓的可靠接触与取流关系到电气化铁道的正常、安全运营,因此其在铁路空间位置的准确测量十分关键,是接触网日常

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