The system management control center is the core of the entire network RTK system. The network RTK system is a star network with the system management control center as the central node. Each reference station is a sub node of the network RTK system, and the system management control center is the central node of the system. It is mainly composed of internal networks, data processing software, servers, etc., and is connected to the reference station through network communication methods such as ADSL and SDH private network. The system management control center has functions such as benchmark station management, data processing, system operation monitoring, information services, network management, and user management. Specifically, the main functions of the system management control center include:

　　① Data processing. Conduct quality analysis and evaluation on the data collected and transmitted from each benchmark station, integrate and distribute multi-site data, and form a unified differential correction data system that meets the RTK positioning service.

　　② System monitoring. Automatic, real-time, and dynamic monitoring and management of the entire GNSS benchmark network subsystem.

　　③ Information services. Generate service data required by users, such as RTK differential data, Completeness information, etc.

　　④ Network management. The entire system management and control center has various forms of network connection, and network management of the entire system is achieved through network devices.

　　⑤ User management. The System Management Control Center manages various types of users through databases and system management software, including user measurement data management, user registration, registration, revocation, query, and permission management.

　　⑥ Other functions. The system management center also has the functions of automatic control, system Completeness monitoring, etc

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