Beidou high-precision satellite navigation and position service system

Abstract

The invention provides a Beidou high-precision satellite navigation and position service system, which comprises a satellite navigation positioning resolving module, a user management platform, a terminal user and an operation state monitoring module, and is characterized in that the satellite navigation positioning resolving module is used for resolving reference station data to obtain regional enhanced data information; the user management platform is used for managing and authenticating a terminal user, selecting a corresponding virtual observed quantity of a certain grid point from the regional enhanced data information as differential information of the user according to information uploaded by the terminal user, and sending the differential information and position coordinates of the grid point to the terminal user; and the running state monitoring module is in data communication with the satellite navigation positioning resolving module and is used for monitoring the running state of the base station and the regional enhanced data information. According to the invention, only a fixed number of grid point virtual reference stations are calculated through the satellite navigation positioning calculation module, the calculation is not related to the number of terminal users, and the consumed resources are fixed, so that the resource cost can be greatly saved.

Description

technical field [0001] The invention relates to the technical field of satellite positioning, in particular to a Beidou high-precision satellite navigation and location service system. Background technique [0002] The implementation steps of network RTK positioning technology can be summarized into the following three points: [0003] First, the baseline calculation is performed based on the observation data of the CORS network, and the ambiguity parameters on each baseline are fixed. The exact fixation of the ambiguity parameters determines the calculation accuracy of various spatial correlation errors. The distance between the current CORS network reference stations is generally long, and the fixation of long-distance baseline ambiguity is the key technology of network RTK. [0004] Secondly, when the ambiguity parameters are fixed accurately and timely, the coefficients of the modified model are calculated. [0005] Finally, the data processing center obtains the opti...

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to provide a Beidou high-precision satellite navigation and location service system, which can solve the technical problems that the existing precise positioning service is limited by hardware resources, the user's carrying capacity is limited, and the security level protection design is not satisfied.

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