Research And Design On Intelligent Home Furnishing Gateway Of Internet Of Things

With popularization and development of science and technology,communication is not between people,but also between people,things and things.The link between them is the Internet of Things.Internet of Things technology is based on the Internet.It applies embedded technology,sensor technology and data analysis and processing technology to intelligent monitoring and control management.At present,the Internet of Things is widely used in smart home systems,logistics systems,security systems,vehicle systems,and so on,covering almost all aspects of life.Internet of Things is the trend and inevitability of the development of science and technology,so choosing the direction of smart home to study Internet of Things technology is in line with the mainstream of contemporary.This topic is the research and design of intelligent home Internet of Things gateway,because gateway can not work independently from the whole system,in order to verify the correctness of gateway,other parts of the system need to be designed,including Internet of Things terminal node,Internet of Things coordinator and user terminal.The main work of this paper is as follows:Firstly,this paper analyses and explains the research status of the Internet of Things gateway of smart home at home and abroad,summarizes and summarizes the key technologies used,and elaborates the overall structure of the Internet of Things gateway of smart home in detail.The main body of the system is divided into sensor nodes,coordinator nodes,intelligent gateway platfonn and server platform.According to the communication protocol,the system is divided into communication subnet composed of node-coordinator-gateway and communication extranet composed of gateway-server.Intelligent home system takes monitoring,security and control as its basic requirement.Therefore,temperature and humidity sensors,combustible gas concentration sensors and relays are selected as the sensing module and control module of nodes,and Zigbee wireless communication mode is used between nodes.The gateway platform carries Andriod operating system,calls serial communication protocol at the bottom to communicate with the coordinator,and uploads the data after parsing to the server.Secondly,each node is tested for data communication.Based on the Zstack protocol stack,the communication between nodes is designed,and the communication protocol between nodes is explained,and the specific specification of the protocol is given.Then the hardware and software design process of the gateway platform are elaborated in detail,and how to call the serial port to communicate with the coordinator in the Andriod operating system,as well as the data analysis and processing process in the gateway platform are explained.Finally,the selection of server platform and the process of software design are elaborated,and the gateway binding server and data upload are explained.The gateway system of smart home Internet of Things is summarized and concluded.