Design and application of ZigBee based telemonitoring system for greenhouse environment data acquisition

Focused on the data and information monitoring of greenhouse environment, in this paper, the design and development of sensor node technology were introduced, and wireless sensor network of field monitoring was constructed based on ZigBee protocol. Through network sink node as well as integrating wireless mobile network (GPRS/CDMA) with INTERNET, field acquired data were transmitted to designated database server. The star-type network topology was adopted for the wireless sensor network which could be awakened up by software settings in the requirements and had many advantages, such as moving conveniently, flexible networking. The applicable results in the practical production show that the working performance of the system is quite stable and can reach the design requirements in real-time data acquisition and remote transmission. Especially, by effectively simplifying the design of field communication wiring and device installation, it becomes more useful and convenient in data monitoring in different kinds of agricultural sites.