Information Visualization And Price Warning System For Agricultural Products Wholesale Markets In Hebei Based On GIS

The wholesale market of agricultural products is the place where the circulation and price of agricultural products are formed.All kinds of information are of great significance to farmers' production.In the era of rapid development of the Internet,the traditional information management and distribution mode of wholesale market is accelerating transformation.How to use the Internet to manage and publish the information of the wholesale market of agricultural products,and to make these information better guide farmers to make production decisions is the focus of this paper.In view of these problems,this paper puts forward a system of developing a B/S structure of information management,information visualization and price warning of agricultural products in the wholesale market of agricultural products.This paper uses the JavaWeb development technology to develop the information visualization and price warning system of the agricultural product wholesale market in Hebei Province Based on GIS.The main work of the paper is as follows:The first.System design,the system uses modular design,the whole system is divided into information management subsystem and data display subsystem.The information management subsystem is divided into personnel management and market management module.The data display subsystem is divided into market information display,price information display and agricultural product price warning module.The second.In the data display subsystem,we use GIS technology to display the wholesale market information and the price information of agricultural products in Hebei respectively.The chart can analyze the trend of price information of agricultural products in wholesale markets in Hebei province and the comparative analysis between them.The third.The method of support vector machine is used to predict the price of agricultural products in the wholesale market,and the way of forecasting the price of agricultural products and the proper size of the training set are determined through the design comparison experiment.The experimental results are used to predict the price of each agricultural product in each wholesale market,and then analyze the price fluctuation of the forecast results,get the early warning level of the prices of agricultural products in each wholesale market,and finally use the GIS to show the early warning results.