Method and device for checking dual-network signals of process layer of intelligent substation

The invention provides a dual-network signal checking method and device for a process layer of an intelligent substation. The method comprises the following steps: receiving a signal sent by each interface of the process layer of the intelligent substation; according to a preset time interval, reading a signal which is sent by each interface and meets a preset filtering condition; if the signal sent by each interface is two-frame data, judging whether the signal data are the same, if so, judging that the dual-network states of the process layer of the intelligent substation are consistent, and otherwise, acquiring an application number corresponding to the signal data; and performing troubleshooting and positioning on the intelligent substation process layer dual-network signals based on the application numbers corresponding to the signal data. According to the intelligent substation process layer dual-network signal troubleshooting method provided by the invention, the signal troubleshooting efficiency can b