关键词: 北斗CORS跨网服务, 无缝切换, 通信模型, 网络RTK/RTD

Abstract:

At present, the BDS CORS service systems in different provinces and cities in China operate independently of each other. The accounts of the service system in different provinces can't be universally used, which affects the social application scope of BDS high-precision location service to a certain extent. To solve this problem, this paper proposes a virtual communication medium based on mobile communication technology. Based on the virtual communication medium, the communication model of CORS cross-network service seamlessly switches can enable users to seamlessly switch between different provinces and real-time access to inter-provincial BDS high-precision services data. This method does not change the current service processes of various provinces and cities.And the user can realize the seamless switching and use the CORS service in different provinces and cities without re-registering the account. After testing,the average time of cross-province switching and obtaining high-precision positioning data is 9.029 s by using this method.This method can be applied to multi-provincial and inter-network services and the national "BDS location service one network" construction.

Key words: BDS CORS cross-network service, seamless switching, communication model, network RTK/RTD cross-network service