基于3S技术的土壤采集信息处理系统的设计与实现

Design and Implementation of Soil Sampling Information System Based on 3S

土壤采样质量的高低对精准农业施肥决策制定正确与否有重要的影响,高效、优化的土壤样品采集方案和基于GPS的准确采样是精准农业的基本重要问题之一。运用系统工程的方法,初步构建了土壤采集信息处理系统的通用设计和开发框架,并在此基础上,利用组件技术开发了车载土壤采集信息处理系统。该系统解决了GIS、GPS和RS之间的逻辑链接,实现了基于GIS和GPS的土壤样品采集方案优化设计与取样点导航定位功能;实现了采样点坐标和土壤化验结果的统一管理,与专用传感器相连可实现土壤理化指标的实时快速分析。

The quality of soil sampling had a significant effect on the accuracy of site specific fertilizer application in precision agriculture. The numbers of soil sampling site and the distribution within a field have great importance for achieving a high quality sample. The high quality soil samples were the basic decision material for site specific fertilizer application. Therefore fast and low-cost sampling methods could promote this technique to be applied widely. A general framework of an information processing system for soil sampling had been constructed. Five modules had been set up to response to some main function about soil sampling. A simple system, which is developed using component technology based on RS, GIS and GPS technology, had been designed and implemented. Using this system, design soil sampling sites and optimize sampling path easily. A navigation function had been designed, with which a vehicle can navigate to each soil sample location fast and accurately. With the system, the geographic coordinates and the soil laboratory analysis results of samples can be integrated to manage. Furthermore, connecting with a sensor, the system can analyze samples in the field, immediately after they were taken.