Telephone-based single-chip remote control home appliances
Abstract:The design is based on AT89C51 single-chip microcomputer as the core, the development of the telephone network-based remote control of the intelligent system appliances. The system is the use of telephone network to transmit digital and voice information, part of the remote control to receive telephone network to send the DTMF signal, decode it, decoded by the CPU AT89C51 control home appliances in accordance with decoding information. Telephone remote control without special wiring, radio frequency resources are not occupied, but also to avoid electromagnetic pollution; through embedded intelligent voice prompts, voice prompts to highlight features and password control system, will enable the operator based on a variety of tone keep abreast of information about the controlled object; issue voice commands through the phone number of the remote control home appliances, the user can query the status of appliances, provide the password function, only to enter the correct password to control home appliances, resulting in improved safety; the flexible design features diverse, high reliability and easy operation, practicality, and can be widely used in home or other place of intelligent control.
Key Words: single-chip; telephone remote control system;household appliances
