基于嵌入式GIS的内外业一体化土地变更调查技术研究

Land change investigation technology of indoor and field work integration based on embedded GIS

针对目前土地变更调查中"直接外业调绘"方法的内外业分离的缺点,本文提出了将GPS、PDA、Arc-PAD三者相结合用于土地变更调查的模式,在需求分析、逻辑结构设计的基础上,提出了适合PDA存储的土地变更数据结构,研究了系统实现的开发方法,并进一步探讨了GPS采集时需要解决的坐标转换问题的解决方法。本文的研究对于改变现行变更调查模式,提高工作效率,减少因内外业分离引起的错误等进行了有益的探索。

Based on the analysis of current land use change survey that the direct field investigation and plotting leads to the separation of indoor and field work,this paper put forward a mode which combines GPS,PDA and ArcPAD to serve the land change investigation.Based on the requirement analysis,the logic structure design was put forward for the storage of PDA,studied the data structure of system development methods,and further discussed the solution of the coordinate conversion in GPS collection.This research gave a reference to changing the current change mode,improving work efficiency,and reducing the error caused by the separation of indoor and field work.