Intelligent enuresis alarm based on capacitive sensor

Abstract

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 infants with incontinence can be better protected, an alarm structure can be better replaced, the disabled people or infants do not need to get up to replace a bedroll, continuous use can be achieved, and the use comfort is greatly improved.

Description

technical field

[0001] The invention relates to the technical field of sanitary products, in particular to an intelligent enuresis alarm based on a capacitive sensor. Background technique

[0002] At present, although the baby diapers sold in the market can absorb urine, they cannot promptly remind personnel to dispose of the diapers, which is likely to cause damage to the baby's skin. Some diapers that can provide enuresis monitoring cannot be used on a large scale due to their high cost because they are disposable or only used for a limited number of times. It cannot be disposed of in time. Moreover, some disabled persons with incontinence in the society will also experience enuresis that cannot be disposed of in time when they sleep at night. When using it, after enuresis occurs, they need to get up and replace the bed bedding. The operation is troublesome and affects work and rest. In view of the situation, a low-cost intelligent enuresis alarm that can detect enuresis ...

Images