Energy efficient and low cost air quality sensor for smart buildings

An Indoor-Air-Quality (IAQ) sensor is developed in conformity with ISO/IEEE/IEC 21451 standards. The developed IAQ sensor is suitable to monitor the concentrations of indoor air quality parameters like PM2.5, CO
₂
, O
₃
, and CO. The semiconductor and PM 2.5 sensors are used for implement the sensor array. The optical PM2.5 Sensor module has been developed. The sensing part of the developed sensor is controlled through smart devices with GSM network. The machine-to-machine (M2M) data communication is implemented for the air quality sensor and smart devices. The calibration of the developed sensor has also been implemented successfully. The IAQ sensor is portable, easy to operate, low cost, and energy efficient.