The public toilet is modern society's one kind of infrastructure, it is the human culture evolution important product. Along with the population growth, the fresh water resource already lacked, if can the automatic control water washout, not only the people enter the restroom to be convenient, moreover to the economize on water is also not a small contribution! this topic designed two parts of electric circuits to realize the flushing water automatic control: The urinal flushing water automatic control system and washes the hands the pond flushing water automatic control system. Is mainly through the pyroelectric infrared sensor, the solid state relay, the solenoid valve as well as each control circuit's effective match realizes. After the pyroelectric infrared sensor catches the human body signal, passes through the amplifying circuit, the reshaping filter circuit, after timing circuit, the connection solid state relay, the solid state black-white control solenoid valve realizes the flushing water automatic control. So has realized in the urinal system, the human in the flushing water, after the human leaves, the moment stop flushing water; Washes the hands in the pond system, when after the human arrives, controller water supply organization work, but after leaving, the automatic stopping turns on the water. This design can the big environmental enhancement sanitary condition, simultaneously also be able to save the energy for the country.
The public toilet is modern society's one kind of infrastructure, it is the human culture evolution important product.Along with the population growth, the fresh water resources already lacked, if could the automatic control water washout, not only the people entered the restroom to be convenient, moreover to saved the water used also was not a small contribution!
This topic designed two parts of electric circuits to realize flushes the water automatic control: The urinal flushes the water automatic control system and washes the hands the pond to flush the water automatic control systemMainly is through the pyroelectric infrared sensor, the solid state relay, the solenoid valve as well as each control circuit effective match realizes.After the pyroelectric infrared sensor catches the human body signal, the process enlargement electric circuit, the reshaping filter circuit, after the timing circuit, the connection solid state relay, the solid state black-white control solenoid valve realizes flushes the water the automatic control.So has realized in the urinal system, the human in flushes the water, after the human leaves the moment to stop flushing the water; Washes the hands in the pond system, after the human arrives the controller water supply organization work, after but leaves then stops turning on the water automatically.This design can improve the environmental sanitation condition greatly, simultaneously also can save the energy for the country.
Key word: Pyroelectric infrared sensor, solid state relay, automatic control
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