基于射频技术的无线开关设计

Design of Wireless Switch Based on RF Technology

普通家居开关在装修期间需要预埋电线,给用户造成了极大不便。随着电子技术的发展,无线开关在智能家居领域得到了广泛应用。使用无线开关时,发射端利用51单片机进行编码,然后将所编信号经过315 MHz射频发射电路进行发射;接收端利用超再生式接收电路接收信号,再将接收到的信号经过51单片机进行解码。

General switches need to embed wires during decoration,which causes great inconvenience to users.With the development of electronic technology,wireless switch has been widely used in the field of smart home.When the wireless switch is in use,the transmitter uses 51 single chip microcomputer to encode,and then transmits the coded signal through 315 MHz RF transmitting circuit.The receiving end receives the signal by super regenerative receiving circuit,and then decodes the received signal through 51 MCU.