基于GPS/PDA技术的土地调查系统设计与实现

Land Survey System Design and Realization Based on GPS/PDA Technology

根据第二次全国土地调查的实际需求,提出基于GPS/PDA集成技术的土地信息采集系统,介绍了系统的方案设计、组成、功能以及用于土地调查的作业流程。并通过案例证明GPS/PDA土地调查系统外业定位精度高,数据记录准,定位精度均匀,现场成图,录入属性,数据均以数字化形式保存,所获得的调查数据更加准确。操作流程更加简单,工作效率明显提高,土地信息更具实用性,是一项内外业一体化的土地调查新技术,对完善国土资源科技支撑体系具有重要意义。

According to the practical demand of the national second land surveying,we put forward the land information collection system based on GPS/PDA,clarifying its design,structure,function and the work flow. Applications into actual cases demonstrate that the system is accurate in fieldwork positioning and data recording with even positioning precision,in-the-field drawing,digital saving of input attribute and data. The survey data are more precise,the work process is easier,the wok efficiency are improved evidently,and the land information has a high practicality. As a new technology of land surveying which integrates homework and fieldwork,it is of great significance for the improvement of national resource technology support system.