Wireless sensor network-based viticulture environmental monitoring system
Li Jianqi1, Kong Lingshuang2, Wang Fuwen1, Li Xiaofeng1, Cao Binfang1
1.College of Electrical and Information Engineering, Hunan University of Arts and Science, Changde, Hunan 415000, China; 2.College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou, Hunan 412008, China
Abstract:In order to realize the key environmental parameters in viticulture to be monitored and reduce the labor intensity of agricultural workers in Southern China, a monitoring system is put forward with combination of the layered wireless sensor network(WSN)and Wi-Fi technique. The CC2530 wireless transmitter chip is used in the system as the core to construct wireless data acquisition nodes, the corresponding hardware design is carried out and a real-time collection is completed for the key environmental parameters, such as temperature and humidity of air and soil, CO2 content and so on. In order to locate network nodes, a network structure is adopted based on the virtual network cells, further the cluster head election mechanism for the cells is optimized and the multihop transmission of cluster head is achieved; the error detection and correction mechanism are utilized as well. Compared with the traditional LEACH-C clustering algorithm, the improved algorithm has a nearly 22% enhanced network energy efficiency. The system can monitor a wide range of land in viticulture because multiple assess points are allowable in Wi-Fi technique, also it can retransmit data automatically once any errors occur. This PC monitoring system is easily operated and can monitor any changes in the parameters in grape growth stages real-timely. Importantly, it can trigger an error alarm and indicate expected operations according to the expert experience database implemented. It is shown that the system is reliable in operation and can satisfy the needs of viticulture management.
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