Design of space power supply telemetry and telecommand system based on state transition diagram

According to the space power supply demand, this paper designs a set of power telemetry and telecommand system including 1553B bus interface circuit, telemetry data acquisition circuit, data command interface circuit and switch (ON/OFF) command interface circuit, a design method based on state transition diagram is used for the system software. This method makes the logic layer of the power telemetry and telecommand system software clear, the call relationship between modules clear and the status flow visible, which greatly simplifies the software design. Finally, the validity of the state transition diagram method is verified by simulation data, and the feasibility of the space power telemetry and telecommand system is verified.