The Design And Implementation Of The Agricultural Product Tracking And Traceability System Based On GIS

With the development of social economy and the improvement of people's living standards,people pay more and more attention to the quality and safety of agricultural products.At the same time,the rapid development of geographic information systems has made GIS technology play an increasingly important role in agricultural product traceability systems.Therefore,it is of great significance to apply GIS technology to the tracing and traceability system of agricultural products.This paper deeply studies the realization principle and method of GIS-based agricultural product tracking and traceability system,and proposes a GIS-based agricultural product tracking and traceability solution.With Java as the development language,Eclipse as the development environment and Openlayers as the space support component,Spring MVC framework,two-dimensional code coding technology and GPS technology were integrated for system development.In the construction of the database,PostgreSQL is used as the spatial database and SQL Server is used as the attribute database to manage different types of data in the system separately,which greatly improves the efficiency of data management.Starting from the requirements of five different roles of system administrator,agriculture-related manufacturers,government personnel,vehicle transportation personnel and consumers,the requirements analysis was conducted and the login management module,agriculture-related enterprise management module,tracking and traceability module,enterprise map distribution management module and system operation and maintenance management module were realized.Through the research on the deployment of spatial database in GeoServer,the system conducts the storage operation of the involved spatial data,providing convenience for the visualization operation of the agricultural product origin spatial information,vehicle logistics information and other spatial data in the system.Through the standard use of JT/T808 protocol,the flow data of the interaction between the on-board terminal and the monitoring terminal in the transport process of logistics vehicles is analyzed to realize the real-time monitoring of logistics vehicles.Due to the different characteristics of agricultural products,reducing travel time in the process of vehicle transportation can improve the quality of agricultural products.According to the specific starting point and ending point,the improved Dikjistra algorithm is used in the system to realize the shortest path planning of agricultural products.By monitoring the whole process of agricultural products,it can effectively prevent the occurrence of safety incidents of agricultural products.After interface testing,functional testing and compatibility test,the system feasibility,safety and compatibility all meet the requirements,has achieved the anticipated effect.