城轨美式应答查询器状态分析与故障检测

Status Analysis and Fault Detection of Urban Railway American Transponder Interrogator

摘要:

城市轨道交通中应答器传输系统是对行进列车进行精确定位的关键系统,列车定位是保证基于通信的列车控制系统（CBTC）安全高效工作的前提。在运营过程中,应答器传输系统在因线路老化、列车振动、设备故障等原因出现信标丢失的故障,导致无法对列车进行定位而引起列车制动,这对列车运行造成极大的影响,更是线路运营的重大安全隐患。目前城市轨道交通中针对车载设备的故障,采取的检修方法是整体更换故障设备,维修成本高且效率低下。为减少车载设备故障情况,本文通过对应答器传输系统中的美式应答查询器的工作状态进行研究,旨在根据其工作状态判断应答查询器故障的具体位置,提出了一种针对应答查询器的故障的检测流程,为城轨车载设备的故障检测提供了指导,有良好的应用价值与实际意义。

Abstract:

In urban rail transit, balise transmission system is the key system for accurate positioning of moving trains. Train positioning is the premise to ensure the safe and efficient operation of communication based train control system (CBTC). During operation, the balise transmission system has the failure of beacon loss due to line aging, train vibration, equipment failure and other reasons, resulting in the failure to locate the train and cause train braking, which has a great impact on train operation and is a major potential safety hazard of line operation. At present, the maintenance method for the failure of on-board equipment in urban rail transit is to replace the failed equipment as a whole, which has high maintenance cost and low efficiency. In order to reduce the fault of on-board equipment, this paper studies the working state of American transponder in transponder transmission system, aims to judge the specific location of transponder fault according to its working state, and puts forward a fault detection process for transponder, which provides guidance for the fault detection of urban rail on-board equipment, It has good application value and practical significance.