Design and Implementation of Granary Monitoring System Based on Wireless Sensor Network Node

According to the application requirements of granary environment, short-range wireless transmission method is employed to design a temperature and humidity monitoring system of granary, which is based on Atmega128 microprocessor and JN5139 wireless data transmission chip.JN5139 facilitates the design of the node of wireless sensor network, whose ultra-low power and high integration help to reduce energy consumption. The node can not only monitor environmental parameters effectively, but also configure various sensors conveniently, thus having a strong versatility and easy networking ability. The experimental results show that the node of wireless monitor network, based on the ZigBee protocol, can be driven by 3v battery to carry out a single hop or multi-hop communications successfully, which proves the feasibility and validity of the system design.