铁路接触网无人检测车控制系统设计

The design of control system of unmanned inspection vehicle for overhead contact line

当前,国内铁路接触网上零/部件的检修方式主要为停电状态下的人工检修,这种检修方式既费时又费力。随着我国电气化铁路建设的快速发展,铁路的总里程数迅速增加,提高接触网上零/部件的检修效率显得越来越重要。为此,对接触网检修工作的实际情况进行分析,设计了一种铁路接触网无人检测车,该检测车可以根据用户的实际需要配载检测设备,通过北斗系统接收机的定位功能实现在距接触网立柱中心±20 mm处自动定位停车,自动调整YZ坐标平台的空间位置,使搭载的检测设备到达预定位置,对接触网相应零/部件进行检测。该检测车的控制系统以PLC为下位机,通过有线和无线通信的方式对该检测车各部件的动作进行控制,以工控机为上位机,一方面实现下位机的功能调用,另一方面对通过北斗系统接收机获得的定位数据和通过检测仪器获得的检测数据进行分析与处理,达到无人检测车的自动定位,从而实现接触网零/部件的自动化检测。

At present, the main maintenance mode of the component parts of railway contact network in China is manual overhaul under power outage, which both time and labor consuming. With the rapid development of the construction of electrified railway in China,the total mileage of the railway has increased,it is more and more important to improve the repair efficiency of contacting parts. Therefore, analyzed the actual situation of the network maintenance work, and designed an unmanned contact network main- tenance vehicle. The vehicle can be equipped with test equipment according to the actual needs of users and achieve automatic positioning parking in the distance from the center of the column of the contact net _＋ 20 mm through the BDS receiver positioning function, then change the position of YZ coordinate platform automatically and make the equipment reach the predetermined posi- tion,and detect the parts of the contact network. The PLC is used as the slave computer in the control system of the vehicle to control the various parts of the maintenance vehicle, through the wire or wireless communication mode. A industrial computer is used as the upper computer in the control system of the vehicle,on the one hand,which realize the function call of the lower com- puter, on the other hand,which could analyze and process the data from the BDS receiver and testing instruments,which achieve automatic positioning of unmanned vehicle maintenance, so as to realize the automatic detection of the component parts of railway contact network.