Research And Design Of Intelligent Irrigation System Based On NB-IoT

With the development of science and society,freshwater consumption has increased.Attention has been paid to how to make rational use of water resources.Since traditional irrigation techniques can no longer meet the needs of modern irrigation methods,more reasonable irrigation methods need to be sought.With the continuous development and progress of the Internet of Things technology,the combination of the Internet of Things technology and agricultural irrigation has become the current trend of development.Therefore,through the combination of NBIoT technology and irrigation,an intelligent irrigation system based on NB-IoT is designed.In this paper,sensor technology,cloud platform technology and NB-IoT technology are comprehensively used to realize the intelligent irrigation system.NBIoT technology is applied to the system,which makes the system more suitable for field deployment and lower power consumption.The data of soil moisture and temperature and humidity are collected by the hardware terminal of sensing layer of intelligent irrigation system in this paper.The data is transmitted to the upper computer management system by NB-IoT communication module and cloud platform,and the system displays and processes the data.When the water shortage of crops is judged by the upper computer management system,the irrigation instruction is issued.The design of this system includes hardware and software.Among them,the hardware circuit design of terminal sense layer and network layer is completed by the hardware part.STM32F103 is used as the main control chip in the sensing layer,and BC95 chip is used in the network layer.The hardware circuit design of sensing layer includes main control module circuit,irrigation control module circuit,data acquisition module circuit and power supply circuit.NB-IoT communication module circuit is designed at the network layer.The software consists of data acquisition module program design,irrigation strategy design,BC95 communication design,telecom cloud platform development,host computer management system development and Android mobile phone client development.The system is tested and the following conclusions are obtained.The data can be received and transmitted by the cloud platform of intelligent irrigation system.The data can be displayed and processed by the upper computer management system.The whole system can operate automatically and manually,and runs well.The system design requirements are met.A solution is provided to intelligent irrigation,which has certain practical application value.Fig[64] Table[4] Reference[62]...