Design Of Automatic Control System Of LOT(Internet Of Things) For Wise Agriculture

With the continuous development of modern science, building precise and automatic agricultural control system plays an increasingly important role in agricultural production. This paper studies and designs an agricultural automatic control system with loT.Firstly, this paper analyzes the development trend of modern agriculture and designs the overall scheme of the system which consists of automatically capture / control terminal, network transmission, cloud platforms and applications. It designs and realizes the control board and expand boards based on ARM, 3G module, solar power module and shell in automatically capture / control terminal. Also, this paper describes the software framework development based on μC / OS II operating system, the underlying driver configuration, tasks planning, the instruction state machine, packet structure and protocol for control board and expand boards. It completes the MODBUS based on ethernet and 3G network transmission between control board and cloud platform, and realizes the communication between control board and cloud platform in passive mode and the automatic control in active mode. Take automatic irrigation system and automatic temperature control system for examples, it designs the automatic control algorithm based on fuzzy neural network. Also, the paper builds loT cloud platform, users can achieve remote monitoring in agriculture by accessing web pages on the terminal.Finally, the paper gives the process of hardware and software debugging. The results show that the system can achieve remote monitoring and automatic control functions to meet the needs of wisdom control in agricultural field.