接触网禁停区域自动识别与监测技术研究

Research on automatic identification and monitoring technology for OCS non-stop areas

当城市轨道交通列车通过接触网锚段绝缘关节处时,受电弓将从接触网工作支向非工作支过渡,此时会形成一个不宜停车的过渡区域。在列车动态行驶过程中,经过此区域对受电弓受流无影响,若列车在此区域停车,且受电弓的受流过程保持一段时间后,极可能引发弓网事故。为避免因列车在接触网过渡区域停留时间过长而引发的弓网损伤等恶性事故,文章引入无线射频技术和列车信号控制技术,提出一种列车正线运营在接触网绝缘锚段关节过渡区域停车时自动识别与监测方法,该方法利用车载监控装置实时监测列车速度和位置信息,一旦识别到列车在危险区域内停车,车载监控装置会立即触发预警系统,控制进入危险区域的受电弓自动落下,并向司机发出声光报警,从而有效预防弓网事故的发生,增强列车正线运营的安全性。

When the urban rail transit train passes through the insulated joints of the anchor section of OCS,the pantograph will be in transition from the working branch of the OCS to the non-working branch,which will form a transition area that is not suitable for stopping.In the dynamic traveling process of the train,passing through this area has no effect on the pantograph current,if the train stops in this area,and the current process of the pantograph is maintained for a period of time,it is very likely to cause a pantograph-OCS accident.To avoid major accidents such as the pantograph-OCS damage caused by the train stopping too long in the transition area of the OCS,this article introduces the wireless radio frequency technology and train signal control technology,and puts forward a method for automatic identification and monitoring of train stopping in the transition area of OCS insulated anchor section joints during main line operation,which utilizes the on-board monitoring device to monitor the real-time speed and position information of the train,and once the train is identified to be stopping in a dangerous area,the on-board monitoring device will immediately trigger the early warning system to control the pantographs entering the dangerous area to lowering automatically and send sound and light alarms to the driver,so as to effectively prevent the occurrence of pantograph-OCS accidents and enhance the safety of the main line operation of trains.