定测技术在城市轨道交通SelTrac系统工程中的应用

摘要

定测是设备安装前的一项重要内容，其数据的准确性关系到后期列车运行的控制精度。本文以实际工程中轨旁设备定测为背景，论述了轨道交通中定测的类型和方法、关键点，并分析了误差产生的原因。其中描述的定测方法是SelTrac系统在实际工程中的经验总结，可为今后城市轨道交通其它系统的设备安装和测量提供参考。%Location survey is an important part of equipment before installation, the accuracy of the data relates to the late stage of train operation control accuracy. This article taken the location survey of wayside equipment of practical engineering as the background, discussed the types and methods, the key points of location survey in Urban Transit, analyzed the causes of error. The location survey method is the summarize experience of SelTrac System in the actual project, can provide a reference for the equipment installation and measurement of Urban Transit.