Research On Design And Energy Saving Of Greenhouse Microclimate Environmental Monitoring System Based On Agricultural Internet Of Things

In recent years,the greenhouse cultivation technology has been rapidly promoted and applied,which has increased the yield of crops and solved the seasonality problem of crop growth.However,due to the high requirements of greenhouse crops on their planting environment,how to control indoor temperature,humidity,and illuminance and other environmental factors has become an important issue that people are studying and solving.Traditional greenhouse monitoring and control systems mostly use complicated wiring which often causes inconvenience in use,difficulty in installation and maintenance of these systems,and poor reliability.The latest development direction is to fully use wireless transmission,embedded system and intelligent control technology to build smart greenhouses.Based on the system architecture model and the network communication protocol,this paper described the specific design and implementation scheme of the greenhouse monitoring application system,and studied the energy-saving methods in the wireless LAN.The main research content of the dissertation is that analyzing the particularity of wireless LAN in agricultural application from the perspectives of application environment,environment configuration,data requirements,sensors and monitoring methods,network structure,network fault tolerance and real-time requirements.A wireless communication greenhouse monitoring system was designed and implemented,which used ZigBee technology to complete the collection and convergence of multi-span greenhouse information;based on GPRS mobile network to achieve the wireless remote transmission of information;utilized VC6.0 to develop a Windows-based display system.The experimental results showed that the data transmission is reliable and stable,and meet the needs of modern greenhouse information collection,transmission and display.In terms of greenhouse microclimate environmental monitoring system based on the Internet of Things,the network topology structure of the greenhouse monitoring subnet was analyzed.It was found that heavy relay load between nodes caused the node to die quickly,resulting in network service interruption.To solve this problem,a clustering routing(GDCR)algorithm based on game theory energy balance was proposed.The algorithm established a game model with the benefits of node energy state,density,and link quality,and utilized Nash equilibrium to find the optimal transmission link for energy balance and link stability.Ultimately,the function of the system was tested.The results illustrated that the temperature,air humidity,and illuminance are finally displayed timely on the interface of the controlling terminal through wireless transmission,and meet the requirements of system design with low latency and stability.