An Improved Green Energy Granary Monitoring System Based on Wireless Sensor Network

In the study of granary monitoring, many research projects are involved in environmental monitoring in recent years. However, most existing studies are interested in the outdoor natural environment monitoring. Few of them focus on the indoor monitoring. This paper presents a system based on wireless sensor network (WSN) for granary monitoring including grain temperature and humidity. The whole system adopts sensors DS18B20 to measure the granary temperature, DHT11 to measure humidity, and the data is processed by transceiver CC2530, which is a true system-on-chip (SoC) solution for IEEE 802.15.4 applications. To deal with energy consumption problems effectively, the scheme of solar battery board is proposed in order to produce a kind of clean and renewable energy. In addition to showing the temperature and humidity monitoring and alarm mechanism, the system can set up or modify the working parameters through keywords at control terminals. The overall system architecture is described in detail. What is more, the network deployment and wireless communication protocol etc. are introduced. Experimental results in actual granary show that the proposed new system is convenient, efficient, and correct. Copyright © 2014 IFSA Publishing, S. L.