| With the development of cloud computing and communication technology,the Internet of things in our daily life and has been widely used in production,monitoring system as the main application scenario of the Internet of Things,it is of great practical significance to develop a monitoring system of Internet of Things with low power consumption and cloud connection and reliable system architecture to meet people’s demand for intelligent and remote monitoring of equipment operation.Therefore,this paper designs an Internet of Things monitoring system based on the cloud platform of the Internet of Things and NB-IoT,carries out related research and design on its development,and takes the refrigerator as the research object to carry out experimental verification on the function of the system.Firstly,starting from the development of the Internet of Things and the requirements of monitoring system,this paper designs the four-layer monitoring system architecture of the Internet of Things based on cloud platform,analyzes its function layer by layer,compares the mainstream cloud platform of the Internet of Things,and puts forward the advantages of the development of cloud platform in the application architecture of the Internet of Things.Then,the network layer in the Internet of Things system is analyzed,and a variety of wireless communication modes are compared.According to the requirements,NB-IoT communication mode,which is the most suitable for terminal embedded devices,is adopted as the networking mode of the Internet of Things monitoring system,and the MQTT communication protocol is applied on the communication mode to complete data transmission.Based on the analysis of cloud service technology,the architecture of Internet of Things application development on cloud server is designed.The B/S Internet of Things monitoring architecture is developed by the way of front and rear end separation,and the user monitoring interface with high stability and reliability is realized.Finally,the intelligent refrigerator monitoring system based on cloud platform and NB-IoT is developed,including terminal hardware and program design of the system,communication design,cloud platform configuration,related cloud services and database construction and design,front and rear end program design,and conduct relevant tests on each unit and the whole,and verify the functions of the Internet of Things monitoring system based on cloud platform and NBIo T from multiple perspectives,reflecting its systematicness and high efficiency in development,low power consumption of device side communication,high performance and convenience of application side. |
