Study Of Several Problems In Quality Control To Digital Products Of Surveying And Mapping

In recent years, database establishment work for province-level fundamental geographic information which is based on 4D digital products of surveying and mapping has formed regular development. The application field of DEM, DOM and DLG has increasing developed. The problem has become the concerned problem in the industry, which is task precision criterion and product quality technique in the course of data collection. So quality control work of digital product of surveying and mapping has become more important. In order to improve the quality of digital products of surveying and mapping, besides the traditional experience, we should practice and summarize gradually, and explore the new routes and methods to manage the quality of surveying and mapping department.Quality control has strong practice and continuity. Combining to the practice of check and acceptance work to 1:10000 fundamental geographic information system in the course of data collection work, this paper expatiates the problem which exits in the course of quality control to digital products of surveying and mapping, analyses several phase of quality control development, and studies the whole member and whole process quality control in the whole quality control to digital products of surveying and mapping. On the basis of this, this paper brings forward the correspond strategies of quality control to the key problem. This paper also brings forward detailed strategy of quality control on basis of analyzing the actuality of quality control to digital products of surveying and mapping.On the basis of field surveying and computer practice, according to the typical case of task processing and digital products, this paper emphasizes two problem, and brings forward material settle strategy. They are set between of DEM and DLG, and joining and corresponding among each working procedure, data, and department.