Design Of Smart Vertical Agriculture System Based On ZigBee And NB-IOT

China is the world’s third largest agricultural country in terms of arable land,and traditional agriculture is still the mainstream of my country’s production and planting industry.Traditional agriculture consumes too much manpower and material resources and cannot guarantee the optimal growth environment of crops,so it cannot achieve maximum yield.The Internet of Things technology has been vigorously developed in agricultural production,promoting the innovation of traditional agriculture,and accelerating the development of intelligent agricultural production models.Vertical agriculture has emerged as the times require.Vertical farming transforms the traditional horizontal planting direction into a vertical stepped planting direction,and uses advanced sensing and detection technology to simulate and reproduce the actual farm environment.Vertical farming not only improves the utilization rate of arable land,but also increases the yield of crops through intelligent means.In order to realize the development and innovation of information technology in agricultural production activities,this topic uses the Internet of Things technology to build a smart vertical agriculture system.Upload the smart vertical agriculture service platform.Users can obtain and intelligently control the environmental information in the greenhouse in real time,and realize the connection between the wireless sensor network system and the Internet cloud platform.The intelligent vertical farming system can greatly liberate productivity and promote the development of intelligent agricultural production methods.The main research contents of this paper include the following aspects:（1）According to the research and study on the current situation of vertical agriculture research at home and abroad,Internet of Things technology,wireless transmission technology and cloud platform,etc.,clarify the system design purpose and determine the overall system design plan.The system adopts the three-layer structure of the Internet of Things.The perception layer is responsible for data collection,the transmission layer uses Zig Bee technology and NB-IOT technology to cooperate to complete the data transmission work,and the application layer is responsible for data display,processing and storage.（2）Through the analysis of the overall scheme of the system,the hardware design with STM32 microprocessor as the core is completed.First select the sensor,Zig Bee chip,NB-IOT chip and cloud platform,then build the hardware framework of the system wireless sensor network and data transmission channel,and finally complete the design and implementation of its hardware circuit.（3）Based on the IAR integrated development environment,complete the main control program,the terminal equipment collection data program,the coordinator to build the wireless sensor network program,the NB-IOT module initialization and data transmission program,and the cloud platform access program.Based on the services provided by the cloud platform,the system interaction page is designed to complete the data communication work.（4）Build a vertical farming model,and test the stability of the system,the reliability and effectiveness of data transmission,and the realization of functions.The test results show that the system is running normally,and all the functional parameters have reached the design goals.