Research and Application of 1:50 000 Dynamic Updating Project Key Technology
Aiming to geospatial data updating problem, we researched and partially implemented the core technologies based on incremental updating database in this paper. We used the incremental updating database technology, the digital field patrol technology, Arc SDE updating technology and linkage updating technology to solve the traditional mapping problem that long cycle and small range of update, which adapted to the geospatial data diversified, met the social needs, and achieved 1:50 000 topographic features updating annually. The result shows that the methods are closely fit the product, high efficiency, program smooth, easy operate. This study can provide referenced general ideas and methods for integrate, upgrade, reconstruction and establishment of a national multi-level basic geographical information database.
【CateGory Index】： P208