Design Of Greenhouse Wireless Temperature And Humidity Control System Based On ZigBee

As the development of economy and the improvement of the people's living standards,the daily life needs lots of fruits and vegetables.Our country with large population,but most of the areas in the Frigid Zone,due to the temperature and humidity,most regions are not suitable for the planting at 2^nd half year.So the Greenhouse is required,to plant the fresh fruits and vegetables in these seasons.Thus,it can eliminate the large quantity of fresh fruit and vegetable transportation and avoid the waste of resources.It's good for the market control.Due to the huge market requirement of the Greenhouse and the current Greenhouse control system imperfect;currently,most of the Greenhouse is managed by a lot of people working on the scene.This type of greenhouse system,the control is imprecise,low efficiency,low capacity.It is difficult to adapt to the large population demand.So this paper will design the Greenhouse wireless temperature and humidity control system.If the designed system be applied,the workers can manage the Greenhouse remotely rather than check the temperature and humidity on scene every day.The system can achieve the remote control of the Greenhouse,with high efficiency,high yield and high automatic level.At the same time,it can meet the requirement of rapid development of economy and reduce the waste of resources.The article will use the ZigBee wireless network technology to achieve the temperature and humidity remote control.Firstly,based on the research of the Greenhouse remote system and ZigBee,the article completes the whole control system design.From the different aspects of the control system design,the article is mainly focus on describing the different levels of the system control.It includes the remote client center,the middle layer wireless transmission,and the terminal measurement control module.Secondly,based on the whole system character,the article did the hardware selection.The article chooses the DHT11 and DS18B20 as the temperature and humidity measure sensor.It selects the CC2530 ZigBee module as the core controller to achieve the control of temperature and humidity and wireless transmission;Thirdly,The article will complete the hardware circuit designing,node and whole logic control programming.It describes the hardware designing and control program coding clearly.Finally,the design completed the whole system integration and debugging.It can meet the requirement of design.The whole system can achieve the predicted function:terminal data collection,data transmission and processing,terminal command function.The design achieved the greenhouse wireless management,the system is precise,and improved the workers efficiency.