Home electric safety and smart home design

Design?

1.?We?adopt a single beam and single channel control mode?which?is the most simple infrared remote control mode. The executing device can be a relay or a silicon controlled device?to control?on-off.?

2. Circuit diagram and function: infrared transmitting circuit and infrared receiving and controlling circuit compose?infrared optical switching circuit. The?core of infrared transmitting circuit is a time-based integrated circuit 555. The infrared receiving and controlling circuits include infrared electric converter, Schmidt trigger, bistable flip-flop and SCR trigger?circuit.