ABSTRACT
This text designed a set of control system of solar energy water- heater.Carry on diagraph and control to water temperature and water level of water- heater.Spread the feeling machine DS18 B20 and the display LCD1602 rightness water temperatureses to carry on diagraph and show through a number temperature.Pass again in the water tank to place electrode to carry on an examination to the water level.Pass the machine AT89 C51 rightness water temperatureses of the core parts list slice and water level information to carry on a processing, carry on a control to the electromagnetism valve of the electricity heating in the water tank and the top pipe line road while being to attain initial value.The textual design is in the last water process can't a pair of is aquatic full, combine a temperature information to carry on comprehensive last water.Can carry on an use in water that can also promise to have 50 degrees in the sky of overcast and rainy.This text designs of solar energy water- heater control the system has an use convenience, stability , economy energy etc. characteristics, function .
Keywords: water heater ; temperature ; water level; control