State detection circuit of secondary cell pressing plate in distribution network ring main unit and terminal

The invention discloses a state detection circuit of a secondary cell pressing plate in a distribution network ring main unit and a terminal. The circuit comprises an input port, an output port, a power supply circuit, a protection circuit, a comparison circuit and an output circuit. The input port is used for being connected with a pressing plate and collecting pressing plate data; the power circuit is used for providing power for the state detection circuit; the protection circuit is used for carrying out rectification and voltage division on the pressing plate data to obtain output data; the comparison circuit is used for comparing the output data with a reference voltage to obtain a comparison signal; the input end of the output circuit is connected with comparison signals; the output port is connected with the output end of the output circuit and used for collecting circuit data in the output circuit, and the circuit data is used for judging the pressing plate state of the pressing plate. The technical p