Intelligent wireless sensor solenoid valve control circuit design

Intelligent wireless sensor solenoid valve control circuit design in a row of pump stop working solenoid valve solenoid valve control circuit in order to achieve anytime, anywhere to the intelligent monitoring of mine gas concentration is a function, main control chip CC fuzzy PID control, through the P_ output waveform, through the following circuit control solenoid valve opening and closing. Electromagnetic valve broken, a row of pump stop working; To start working, electromagnetic valve, and a row of pump, the mine gas discharge in mine, till the mine gas concentration in the range of safe production. When the output is high electricity at ordinary times, triode in saturated state, the field effect tube IRF as electronic switch, IRF driving voltage, gain amplification drain current, electromagnetic valve is closed. When the output is low electricity at ordinary times, the base voltage of triode, make the transistor is in the state, the field effect tube also does not meet the requirements for the conduction, and also in by the state, the electromagnetic valve is disconnected.