机车车辆车轮多边形检测算法研究  

Algorithm Research on Locomotive Wheel Polygon Detecting

作　　者：高德阳 解亮 王玉龙 戴永刚 谢宣 贾军战 陆波 王栋 赵波 

机构地区：[1]中国铁路兰州局集团有限公司,甘肃 兰州 [2]成都铁安科技有限责任公司,四川 成都

出　　处：《交通技术》2024年第1期60-66,共7页Open Journal of Transportation Technologies

摘　　要：车轮不圆度作为机车车辆车轮运行安全检测的最重要的参数之一,其是否能被准确的检出直接决定着列车的行车安全。文章介绍了一种机车车辆领域的不圆度检测系统,针对周期不圆的特殊情况–多边形做了详细的研究。该系统通过测量车轮的轮缘高度变化量,进而得到反应车轮不圆度状况的波形,针对波形中电噪声及钢轨磨耗及安装偏差等起伏干扰,提出基于传统谱减算法的改进方法,对波形进行去噪预处理,去噪效果明显,降低了多边形漏报风险,提高了多边形检测准确率。The out of roundness of wheels is one of the most important parameters for the safe operation of locomotive and vehicle wheels, and whether it can be accurately detected directly determines the safety of train operation. This article introduces a non circularity detection system in the field of locomotives and vehicles, and conducts detailed research on the special case of periodic non circularity—polygons. The system measures the height variation of the wheel flange to obtain a waveform that reflects the out of roundness of the wheel. In response to fluctuations such as electrical noise, rail wear, and installation deviation in the waveform, an improved method based on traditional spectral subtraction algorithm is proposed to preprocess the waveform for denoising. The denoising effect is significant, reducing the risk of polygon miss reporting, and improving the accuracy of polygon detection.

关 键 词：机车车辆 接触测量法 车轮多边形 谱减算法 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]