In order to master clearly environmental information around us

an unsupervised adaptive and mobile environment monitoring system is designed for monitoring four environmental information including temperature

humidity

the concentration of PM 2. 5 and the concentration of HCHO. The system mainly consists of two partsa wearable and mobile hardware device used to collect information and a cell phone terminal APP software. After processing information

the wearable device sends it to the cell phone terminal APP software via the Bluetooth module. An unsupervised and adaptive algorithm is proposed to idemtify the indoor and outdoor scene. By collected environmental information

the indoor and outdoor scene are identified and distinguished automatically. The system is mini

portable

practical and has high precision of identification.