Design and implementation of surveying and mapping system for farmland based on SOA

Electronic map of farmland is very important for carrying out precision agriculture. However, professional mapping equipments, mapping software and tenchnicists were needed during the cartography. Therefore the surveying and mapping system for farmland using GPS, GPRS and Server GIS was designed and implemented based on service-oriented architecture (SOA). The system consisted of four parts: data layer, component layer, service layer and application layer. The first three parts provided necessary web services of data and function, such as electronic map automatic generation, remote sensing image and mapping results download. The application layer, as the requester to these services, consisted of two parts, the surveying and mapping equipment for farmland based on smartphone and the management system of map data. The former could download high-resolution remote sensing image based on the coordinates of surveying region, upload the data of surveying recorded and display the preliminary mapping results in order to check and correct the results at the scene. The latter provided rapid way to browse, query and download the electronic map of farmland by the web client. The system was applied at the State Precision Agriculture Demonstration Base in Beijing. The results showed that the system was able to achieve fast cartography of farmland which includes fields, facilities and orchards.