Multi-sensor System For Indoor Environment Monitoring

This paper designed an indoor environment monitoring system, in order to enhance the quality of indoor air. This system can accurately measure the temperature, humidity and the concentration of oxygen, carbon dioxide, carbon monoxide, formaldehyde, PM2.5 and PM10 using the sensor array and transfer the data to the mobile terminal through a wireless network. The system is implemented on ARM which is regarded as the core controller and integrates a number of functional modules. We select the sensors that have the characteristics of high sensitivity and robustness to carry out a real-time measurement. Data collected can be displayed either on the LCD or on the computer or phone via Wi-Fi. The system is not only easy to operate, but also has high stability, and the accuracy of it meet the needs of measurement. Our system can provide accurate and timely health reference to users.