Summarize the development status of surveying and mapping industry and the application of modern industry?

The analysis report of Prospective Industry Research Institute's "Market Prospect and Development Plan of China Engineering Surveying and Mapping Industry in the 13th Five-Year Plan" points out that since 1980s, with the emergence and development of GPS positioning technology, surveying and mapping positioning technology has also undergone revolutionary changes, providing new technical means and methods for engineering survey. For a long time, the conventional ground positioning technology based on angle measurement, ranging and leveling is gradually being replaced by GPS technology with high speed, high efficiency and high precision, which can determine three-dimensional coordinates at one time, and the positioning range has expanded from land and offshore to ocean and space; The positioning method extends from static to dynamic; The field of location service has expanded from the field of navigation and surveying and mapping to the broad field of national economic construction. Especially in recent years, continuous operation reference station system (CORS) has been established one after another, which greatly facilitates the use of GPS positioning technology.

At present, surveying and mapping has completed the transformation from manual simulation to digital production system, and has become an important basic part of the construction of urban information port. It will face the whole society and provide basic geographic information services in time, which is of great social significance and responsibility.