Speaking of CORS and CORS accounts, I think everyone is familiar with them. CORS, a continuous satellite positioning service system, is a new technology developed on the basis of traditional RTK. It is a network composed of multiple reference stations, which uniformly transmits data to the server. By optimizing the software and the location of the mobile station, the server sends the data of the nearest base station to the mobile station, or creates virtual base station information near the mobile station for the mobile station to perform differential calculation. Users only need one receiver to perform centimeter-level real-time rapid positioning.

At present, there are two giants in the domestic "CORS account /CORS network" system:

First, the provincial cors account number

The "National Satellite Navigation and Positioning Reference Service System" organized by the National Surveying and Mapping Department, such as the provincial cors network and the county cors network we bought, are all products of this system.