In this security system is based on the embedded system along with GSM and sensor networks. The human movement is detected using the PIR sensors.

Lutron expands its Caséta Smart Lighting system with a motion sensor and a range-extending signal repeater The new gadgets announced at CES also work with Lutron’s Serena smart shades.

Yes. Most smart home motion sensors use PIR, or passive infrared technology, that detects nearby infrared light, letting them detect people and objects.