| 摘要 |
PURPOSE: A power source on/off system using a card key is provided to enable energy saving, fire prevention by automatically turning off and on the operation of an electric device the entrance and exit of a person. CONSTITUTION: A transmitter(11) transmits an RF(Radio Frequency) signal according to the insertion of a door card key(2), and a receiver(12) receives an RF signal of the transmitter. The receiver isolates the conduction of an outlet(4) through a switching operation, and the transmitter includes a switch unit, a switch monitoring unit, a microcomputer unit, a transmission signal amplifier, and a transmission unit. The receiver includes a receiving unit, a receiving signal amplifier, a diving signal generator, and a control switch unit. |
