Wireless PIR & D6T thermal sensor based lighting & air-conditioning control device for building

This paper discussed on the implementation of wireless passive infra-red (PIR) sensor based versus thermal sensor based lighting and air-conditioning control device for application in lecture hall. Two systems are discussed. In the first system, the passive infra-red (PIR) sensors are used to detect the human presence in the building area. Lighting systems are automatically turned on/off if any movement detected by the PIR sensors. The air-conditioning systems are automatically turn off with certain time setting delayed. In the second system, the thermal sensor based (Omron D6T) is used for human body temperature detection in the building area. The Zigbee wireless sensor network has been used to transmit and receive data from the control circuit for lighting and air-conditioning driver circuit. Overall analysis about the control device including software and hardware development, the performance and comparison of D6T thermal sensor and PIR sensor, and the performance of the controller have been discussed in this paper.