针对平遥增压站紧急停车系统(ESD)在复位失效导致无法触发ESD命令的问题,借助数据选择器(MUX),设计了一种基于MUX的ESD系统改进方案。通过MUX,并以10 s延迟为基准,根据复位是否失效,选择ESD的触发电路(RS/SR触发电路),很好地解决了平遥增压站ESD系统在实际应用中的问题。
As ESD (Emergency Shutdown Device)commands cannot be triggered after reset failure in the ESD system of Pingyao Boosting Station,this paper uses MUX (multiplexer)to design a MUX-based ESD improvement scheme.With the help of MUX and based on standard 10 s delay,it selects an ESD trigger circuit (RS or SR),depending on whether the reset is invalid,thus solving the problems of practical application of the ESD system at Pingyao Boosting Station.