应答器与测速组合定位在地铁中的应用  

Application of Balise and Speed Measuring Device Combined for Train Positioning in Metro

作　　者：夏青[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070

出　　处：《铁路通信信号工程技术》2012年第2期50-53,共4页Railway Signalling & Communication Engineering

摘　　要：分析城市轨道交通列车运行控制系统对列车定位技术的要求,针对地铁的具体特点,提出在CBTC条件下应答器与测速的组合定位方案。该方案利用测速电机和多普勒雷达提供列车相对位置,查询应答器提供列车绝对位置,利用测速电机定位和应答器定位相互补足的特点,得到精度较高的定位数据,较一般列车定位系统相比,提高了列车测速定位系统的精度和可靠性。The requirements for train positioning technologies of the train control system for urban rail transit are analyzed.According to the specific conditions of metro lines,this paper puts forward a scheme of combining balises and speed measuring devices to obtain train position under the condition of CBTC control mode.The scheme adopts the tachogenerator and Doppler radar to provide the relative position,and balises to provide the absolute position,so the positioning data is more accurate because of the complementary between the balise and speed measuring devices.Comparing with the general train positioning system,the positing accuracy and reliability of the train speed measuring system is improved in this way.

关 键 词：城市轨道交通 列车定位 应答器 测速 

分 类 号：U284.75[交通运输工程—交通信息工程及控制]