Research And Realization Of Agricultural Machinery Vehicle Networking System Based On Internet Of Things Technology

In recent years,peasants engaged in farming less and less,and rural ceded large tracts of land available to urban development,making China's agriculture face more and more serious situation.In view of China's current situation,to promote the intelligent agricultural machinery is the key issue.Therefore,the research on the network system of agricultural vehicle based on the IOT(Internet of Things)technology is an urgent need for important technology in our country.Based on the research and analysis of the development status of agricultural machinery field,and for the lack of intelligence in data acquisition and data transmission during agricultural runtime.This paper developed the agricultural machinery vehicle networking system,which combines the technologies of satellite positioning and data acquisition and so on.Firstly,the design of the Satellite Positioning System is carried out.Through the study of the Beidou positioning technology,this paper adopts the Beidou Positioning System composed of Beidou satellite base station,mobile station and cloud platform to carry out the precise positioning of agricultural machinery,and uses RTK forwarding technology and serial communication technology to obtain the Beidou precise positioning information in the agricultural machine controller.Secondly,in terms of the data of agricultural machinery status,using the IOT sensor technology,thought analog,digital input and output interfaces and CAN bus,are sent to the agricultural machine controller.Then,in the aspect of agricultural machinery networking controller,the minimum system for embedded processors is designed,including the smallest system external peripheral function circuit.It is also equipped with Linux embedded system,which carried out the Function testing of the Beidou positioning and agricultural machinery detection system.Finally,the Beidou positioning,agricultural machinery detection system and data transmission and other functions were tested and analyzed respectively.The experimental test proves that the agricultural machinery vehicle networking system developed in this paper can well receive the accurate positioning and the operation status data of the agricultural machinery.The data interface can be displayed in the agricultural machinery terminal and Internet server.It realize the practical application of the Internet and agricultural machine.