Application Research of WSN in Precise Agriculture Irrigation

In order to accurately get extent of the water deficit and therefore realize effective and water-saving irrigation, the application of wireless sensor networks (WSN) to precision irrigation system is explored based on the acoustic emission principle for crop water stress. Cluster based multi-hop routing algorithm is proposed to reduce energy consumption of node transmitting data. By the newest gateway in WSN, the system realizes bridging between wireless networks and wired networks. It runs distributed and possesses many advantages, such as good robustness, extensibility, scalability, and so forth. Simulation results show that the application is correct and reasonable and enables user to precisely acquire the crop water requirement information. The system can be effectively applied to some water-saving agriculture areas, for example, the cropland, the nursery garden, the greenhouse, etc.