Sewage discharge control system based on Internet of Things and control method thereof

The invention discloses a sewage discharge control system based on the Internet of Things and a control method thereof, and the system comprises a water level monitoring module, a water pressure monitoring module, an input coupling processing module, a negative feedback operation module, a sound-light alarm module, an isolation module, and a relay triggering module. The water level monitoring module converts water level parameters of a measured point into output electric signals in real time. The water pressure monitoring module converts a pressure signal into an output electric signal throughwater level depth change; the input coupling processing module is used for filtering ripples in the monitoring electric signals; the negative feedback operation module is used for recovering an output signal of the amplifier to an input end for reverse comparison operation; the sound-light alarm module receives the conduction electric signal to enable a triode Q5 to obtain conduction voltage; theisolation module enables