Abstract: The paper introduces a new type self-positioning and active protection system for metro train, which adopts the inertial navigation platform which has been maturely applied in the domestic aerospace field as the main positioning means, supplemented by electronic map of lines, and performs multi-source positioning information fusion by integrated application of multi-sensors such as vision and radar to correct the integral error of inertial navigation platform time. The on-site practical trial of the new type self-positioning and active protection system for metro train in urban rail transit proves that the system can not only provide high reliability and high precision positioning information for the train control system, but also realize the train active protection.

Key words: new type, self-positioning, active protection

摘要： 介绍一种研制的新型地铁列车自主定位和主动防护系统，采用国内航天领域成熟应用的惯导平台作为主要定位手段，辅以线路电子地图，并综合运用视觉、雷达等多传感器对多源定位信息融合，修正惯导平台时间的积分误差，新型地铁列车自主定位和主动防护系统经过在城市轨道交通现场实际试用证明，该系统在为列控系统提供高可靠、高精度定位信息的同时，实现列车的主动防护。

关键词: 新型, 自主定位, 主动防护