基于GPS的农田信息采集与处理系统的设计与实现

农田信息的有效采集和管理是实践精细农业的重要基础。开发基于GPS的农田信息采集与处理系统,包括空间信息采集、空间信息处理、土壤属性、网络查询和帮助模块。用VB 6.0中的MSComm控件,编制RS-232串行通讯接口程序,实现GPS数据的计算机实时采集;编程实现GPS定位数据的过滤、分解、保存及定位精度分析;编制高斯-克吕格投影程序,把WGS-84坐标转换为二维直角坐标;开发土壤属性管理模块,实现土壤水分的采集和分析;设计农田信息的网络查询模块等。该系统经过测试和使用,具有操作简便,性能稳定等特点。

Study on Field Information Management System of Precision Agriculture Based on GPS

In order to Collecting and Treatment field information efficiently,We have studied field information management system based on GPS.The system consists of field information collecting module,field information processing module,inquiring module,and so on.Based on MSComm widget of VB 6.0,RS-232 communication program was made,GPS data of computer real time collecting were realized.The program was made for filtration of GPS original location data,decomposition,conservation and location precision analysis.Gaussian-Kriging projection program in WGS-84 coordination was made to transform earth coordination into 2D coordination.In the module of collecting and managing of soil information,real time collecting,analysis and treatment of soil water were realized.For using fully network resource,inquiring module of field information was designed.The system has been tested,and proved to be stable and convenient.