Intelligent enuresis alarm based on capacitive sensor

The invention discloses an intelligent enuresis alarm based on a capacitive sensor. Theintelligent enuresis alarm comprises a reel frame, a reel, a motor, a fixed frame, a guide roller, a protective net, an alarm structure, a connecting belt, an air bag, an air box, an exhaust pump, an air inlet pump and a power-off structure;bearing seats are mounted on two side walls of the reel frame; the two ends of the reel are installed in the bearing seats in a matched mode through bearings, a capacitor is connected into a capacitor oscillation circuit composed of a 555 electronic chip, when the capacitance value of the capacitor changes, oscillation frequency generated by a 555 oscillator changes, the rear side of the 555 oscillator is connected with a frequency detection circuit, the frequency change is converted into voltage change, the frequency detection circuit is connected with the voltage detection alarm circuit, and when the voltage exceeds a certain set value, an alarm prompt is given, disabled people or infa