北京地铁异物侵限探测系统研发与实践

对北京地铁异物侵限事件进行调研和总结，根据异物侵限事件发生的位置、侵限源特征及其危害程度对异物侵限源进行分类。在此基础上，提出一种基于雷达-视频多手段融合的智能异物侵限检测方法，采用高清摄像机视频检测、雷达测距和双目立体测距技术等开发一套异物侵限探测设备。通过模拟不同异物侵限工况在北京地铁某试车线开展现场试验，验证该设备具有识别精度高，并可实现实时预警、报警等功能，可为北京地铁安全运营提供技术保障。

Monitoring Equipment for Foreign Matter Intrusion in Beijing Metro

Intrusion of foreign matter in Beijing metro is investigated in this study, and thereafter classified according to the type, feature and impact of intrusion. Additionally, a foreign matter intrusion monitoring equipment based on radar, video multi-methods is proposed, which utilizes high definition detection camera video, radar ranging and binocular stereo ranging technology. From the field tests under different conditions in the Beijing metro, intrusions could be detected using the proposed equipment. Additionally, this equipment was found to have high recognition accuracy and was able to predict possibilities of foreign matter intrusion as an early warning, which can provide practical application and technical support for the safe operation of the Beijing metro.