Solution of Abnormal Stopping of Liaison Signal between Yards Based on Electronic Execution Module
Liaison signal between yards is used to secure safe and efficient train operation between two yards of a station.When the electronic execution module is adopted to replace the liaison relay circuit between yards,reliable transmission of interlocking information should be ensured,such as conflicting check,signal status of the adjacent yard,and approaching signal between the two yards.During the phased implementation of the liaison signal equipment upgrade project,since the electronic execution module does not well match the not-yet-replaced existing liaison circuit between yards,abnormal stopping of starting signal of the yards may occur due to a short time drop of the check relay during train operations between yards.Based on practical cases,analysis of on-site data and the design drawings of the liaison circuit is made to identify the immediate cause of the fault.Through analyzing the processing logic of the electronic execution module and comparing the the differences in the duration of no electricity state of the relay circuit and the electronic execution module during the process of positive and negative electrical conversion,a solution is proposed,including optimizing the processing logic of the electronic execution module and improving the liaison relay circuit.The solution has been practically applied in specific engineering projects and achieved good implementation results.
Liaison circuit between yardsAbnormal stopping signalElectronic execution moduleRelayConflicting check
万方数据
维普
