A New Architecture in Greenhouse Soil Solution Monitoring System Based on ZigBee Protocol

Nowadays in the greenhouse monitoring system, there are some shortages: a. the concentration of nutrients (such as N, P plasma) in soil solution as a greenhouse environment parameter is often overlooked; b. small ZigBee system can’t meet the needs of real-time data storage and remote monitoring. Basing on the situation, this paper designs a new architecture in greenhouse soil solution monitoring system based on ZigBee protocol. The architecture has several small sub-networks. Each of these subnets forms an Ad-hoc network by ZigBee protocol. And nodes in the sub-network can real-time monitor the soil solution concentrations of greenhouse and send data to the coordinator after carrying out data cleaning. The coordinator will send real-time data to a PC monitoring machine and the Cloud. Using PC monitoring machine staff can monitor greenhouse crop conditions. And by utilizing mobile devices access to the Cloud, customers can also monitor soil solution concentration. The experimental results show that the system is stable, real-time and accurate.