嵌入式GPS/GIS系统设计的几个关键问题及解决方法

Several Key Problems on the Design of Embedded GPS/GIS System and Resolution Schemes

提出嵌入式GPS/GIS系统设计中的几个关键技术问题并给出解决方案。对GPS数据质量采用神经元辨识的方法进行控制;对大数据量底图数据采用一种新的地图综合方法建立多级显示机制,节省内存,提高图形显示效率;建立基于la-bel的空间算子实现方式,完成采集图斑的现场变更,减少内业数据处理的工作量。实际应用表明,这些方法能够满足嵌入式GPS/GIS系统应用于土地调查业务的需要,提高了调查效率。

Several key technical problems of the embedded GPS/GIS system developing are presented and solved. The method of nerve cell identification is applied for GPS data quality control. A new map synthesis algorithm is made to build multi-scale display schema. And it is diminished for memory requirement by this algorithm and the efficiency of display is improved when a large number of map data is handled. The spatial operators based on label are realized to finish altering polygon while collecting field data, and the load of work of the data processing in the room is decreased. The application tests show these methods can satisfy the demand of land survey for embedded GPS/GIS system and the efficiency of survey is improved.