Research And Application Of Modern Agricultural Internet Of Things Monitoring Node Based On NB-IoT

In recent years,with the implementation of the national comprehensive revitalization strategy,the importance of agricultural development has become increasingly prominent.In order to make agriculture more scientific and digital,and to connect with the rural revitalization strategy,China is actively transforming and upgrading,vigorously promoting the development of smart agriculture,alleviating the shortage of rural agricultural labor,improving water resource utilization rate and crop planting output rate,and promoting agricultural development.High-quality systematic development.According to the rural revitalization strategy and the development goal of smart agriculture,this paper takes modern agricultural intelligence as the research object,and combines the latest narrow-band cellular Internet of Things NB-IoT wireless transmission technology to design and develop a set of agricultural crop environment collection terminal system equipment based on Internet of Things technology,and develops related applications.The main research object and content of this paper is the hardware structure design and related software development of modern agricultural crop growing environment acquisition node equipment based on NB-IoT wireless transmission technology.Based on the current agricultural development status and the application of Internet of Things technology at home and abroad,this paper analyzes the characteristics of several new Internet of Things technologies,and selects NB-IoT technology as the communication scheme of terminal data acquisition and transmission.The hardware part uses the ultra-low power consumption single-chip microcomputer MSP430F5438A of TI company as the core processor,and consists of peripheral circuits such as NB-IoT communication module.The peripheral modules include power supply module,battery charging and discharging module,acquisition module and so on.The acquisition and transmission terminal is composed of multi-module integrated connection.The hardware structure design not only considers the application and direction of new technology in the future development of Internet of Things,but also considers the functional diversity and practicality of the system.At the same time,it also considers the expansion of the later system functions.The software system makes full use of the internal resources and peripheral circuits of MSP430F5438A microcontroller to realize various functions,including the main program,A/D acquisition and conversion subroutine,communication subroutine and so on,and realizes the functions of data acquisition,communication connection and transmission of agricultural crop growth environment.Finally,the research and development of the Internet of Things terminal equipment access to the Internet of Things open platform,using the advantages of the cloud platform for data analysis and storage and equipment remote control management.Designed and developed the agricultural crop growth environment collection terminal system equipment,real-time monitoring of the growth environment parameters such as temperature,humidity,illuminance,soil moisture content and PH value by real-time debugging and use in the modern agricultural intelligent park of Leyu Town,Zhangjiagang City,The relevant data provided strong support for the irrigation model of the irrigation control system of the modern agricultural intelligent park in Leyu Town,realized multi-point monitoring of crop growth environment,intelligently controlled operation,achieved on-demand irrigation of crops,improved water resource utilization,and saved cost increases crop yields.At the same time,the use of telecommunications NB-IoT platform,realize the real-time application of terminals and platforms to connect,will crop monitoring NB-IoT will offer package to the systematic,formed by acquisition perception layer,NB-IoT network transmission layer,The platform application layer constitutes a complete structure,which makes the agricultural intelligent application form an ecological chain,and improves the agricultural production technology level and production efficiency.The terminal system designed in this development has high expansibility and reliable platform data security.Combined with the characteristics of low power and large connection of NB-IoT Internet of things technology,it will have great advantages and market space in the future development of agriculture.