Design of a Wireless Monitoring Network for Granary Temperature and Humidity Based on Zigbee

Jingwei Dong; Huile Li; Yuan Liu; Yanwen Guo; Guanhua Tang
April 2014
International Journal of U- & E-Service, Science & Technology;Apr2014, Vol. 7 Issue 2, p77
Academic Journal
The granary monitoring systems in used in China are mostly based on wired networks such as RS-485 serial bus, CAN fieldbus, etc. Inevitably these monitoring systems have drawbacks of high installation cost, high failure rate and high maintenance cost. Aiming at these problems, this paper designed a granary temperature and humidity monitoring system based on Zigbee wireless network. The monitoring system consists of sensor modules as Zigbee end devices, a host PC connected to a Zigbee coordinator and some Zigbee routers if necessary. The sensor module is a temperature and humidity testing device using a CC2430 as the controller and a SHT11 as the sensor. All testing results are displayed as figures and curves in real-time on the host PC, and history data are saved in a database file for further analysis.


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