一种基于嵌入式技术的室内道岔控制电路校验系统

摘要

Switch control circuit is a fault prone of railway signal equipments,and interior relay circuit is an important part of the switch control circuit.Aiming at the fault maintenance of four-wire switch control circuit,a verification system of interior switch control circuit is studied based on embedded software and hardware technology and sensor technology.The system can detect interior operating signals by current sensors and simulate the outdoor switch's action and indication process through a virtual circuit built by the embedded software and hardware technology,and realize indoor cable wiring and circuit's function test without manual intervention in the whole operation process.The experimental results show that the system can simulate the electric switch's process of action and indication circuit,so it can check the interior switch control circuit and improve the work's efficiency.%道岔控制电路是铁路信号设备的故障多发点,而室内继电器组合电路是道岔控制电路的重要组成部分,针对国内四线制道岔控制电路的故障维修,结合嵌入式软硬件技术与传感器技术,研究了一种室内道岔控制电路校验系统.该系统通过电流传感器检测室内的操作信号,通过嵌入式软硬件技术构建转辙机虚拟等效电路来模拟室外转辙机的动作和表示过程,整个操作过程无需人工干预,实现了对室内电缆配线及电路功能的测试.模拟测试结果表明,该系统能够模拟电动转辙机动作和表示电路的过程,可以用于室内道岔控制电路的校验检测,提高工作效率.