The Study Of Automatic Controlling System For Solar Energy Heater Based On Telephone Network

With the social development and the advancement of technology, the 21st century has become a highly efficient and fast-paced era. In the 20th century,70 years, with the emergence and development of intelligent home, people gradually come to realize the importance of time and efficiency, to put a higher domestic demand. Also since the invention of telephone in 1986, the world's telephone network is developing rapidly. The intelligent combination of advanced technology and the public switched telephone network PSTN offers greater possibilities of optimization and promotion of home.The telephone receiver, based on the Public Switched Telephone Network, can be flexible and easy to use, not need to re-wiring, which is saving the radio frequency resources and can be combined radio remote control, infrared remote control and wired remote control technology. Meanwhile, the telephone network is throughout the country provinces and cities. It can take advantage of existing telephone network to control the remote home appliances or other equipment inter-provincial city. This article focuses on solar water heaters wireless intelligent control system, this system is the use of wireless control technology, solar water heaters, water temperature, water level control.These modules include the ring detection module, call filtering module, dual-tone multi-frequency decoder modules, voice prompt module and microprocessor controlled driver module. In addition, the section also gives a telephone receiver of the system software design steps and gives the corresponding programming code, and finally with a microcontroller output port simulation diagram.The system hardware is divided into control and feedback control client side, these two modules are single-chip computer for data processing and control, the use of PT2262/PT2272 encoding chips and wireless transmitter and receiver of the first data communication, the use of sampling module to realize the water temperature, water level sampling, using the keyboard input circuit of the set value is set, the driver circuit consists of microcomputer control; software portion of the use of microcontroller programming, to implement encoding and decoding, timing and drive circuitry control, including LCD display, relay drive circuit, buzzer driver.Automatic Controlling System for Solar Energy Heater is based on the public telephone network design. It can control distant equipment, be convenient to use, and haves high anti-interference ability. It can control not only household appliance, but also industrial equipment.