ZigBee-based Vegetable Greenhouse Control System

Since the 21 st century,with the continuous rich material base,people have higher demand for the production and supply of crops.In the past,people only satisfied with the crops that can be harvested in the current season,and the quality requirements for the crops produced were not high.But with the emergence of greenhouse,not only can we plant vegetables and fruits in the reverse season,but also can improve the yield and quality of crops to the greatest extent by controlling the growth environment of crops in the greenhouse.Secondly,our country is a traditional agricultural country,but our agricultural resources are not quite abundant,the per capita water resources in China is low,and the per capita land area is far behind the world average.The emergence of greenhouse greenhouse can not only improve the yield of crops cultivated in the shed,improve the land use rate and save land resources,but also can change the waste of water resources caused by blind irrigation of crops by traditional planting industry.Therefore,greenhouse has an inseparable relationship to the development of agricultural modernization,and it is also a trend to realize intelligent control of greenhouse.This paper takes tomato shed in Longsha Town,Wanzhou District as the simulation environment,mainly explores the process of using various sensors to monitor the growth environment of tomatoes in the greenhouse in real time,and ZigBee module sends the monitored data to the data processing module,and then sends negative feedback to the controller by ZigBee module.Based on this,the control system of greenhouse greenhouse based on ZigBee is designed and developed.This paper mainly includes the following parts.Firstly,according to the main characteristics of crop growth in greenhouse,the main environmental factors affecting its growth are analyzed.The current wireless transmission means are compared.The advantages of ZigBee technology in wireless communication in greenhouse are analyzed,and the network topology and hardware facilities suitable for the system are defined.Secondly,in the aspect of hardware design,the hardware selection and the construction of each module are completed.In the aspect of software design,the main part is to compile the program of each module.Thirdly,the user interface is designed by VS2010.The interface is simple and convenient,and it can directly monitor the environment in the greenhouse.When there is an emergency in the greenhouse,the control command can also be sent through the operation in the interface to realize the control of the executive unit.Finally,after completing the design of each part,the compiled code is burned to the chip,and the system is debugged and tested.In the process of testing,the software and hardware testing process is strictly followed.The results show that the system has good stability and reliability.