Short message based enhanced positioning method, apparatus, device, medium and program

By working in concert with the reference station and the rover, and utilizing short message transmission technology, the problem of high-precision positioning in the absence of terrestrial network coverage in existing satellite positioning technologies has been solved, achieving centimeter-level positioning in network-free environments.

CN122194208APending Publication Date: 2026-06-12INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
Filing Date
2026-03-11
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing satellite positioning technologies cannot achieve high-precision positioning at the RTK level in areas lacking terrestrial network coverage. RTK technology relies on terrestrial communication networks, while PPP technology has slow initialization and insufficient positioning accuracy.

Method used

By collecting observation data from the reference station and satellite-based augmentation information from the global navigation satellite system, the target correction is determined and combined into a combined correction, which is then sent to the rover station in the form of a short message. The rover station uses the satellite-based augmentation information and the short message to perform positioning calculations.

Benefits of technology

Stable and reliable high-precision positioning has been achieved in areas lacking terrestrial network coverage, solving the problem that existing technologies cannot achieve RTK-level positioning accuracy and providing centimeter-level positioning services.

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Abstract

The application discloses a short message-based enhanced positioning method, device, equipment, medium and program, and the method is applied to a positioning system, wherein the positioning system comprises a reference station, a global satellite navigation system and a mobile station in communication connection with the reference station. The method comprises the following steps: determining target correction numbers under each frequency point through the reference station according to observation data collected and satellite-based augmentation information broadcast by the global satellite navigation system; combining the target correction numbers to obtain combined correction numbers, and sending the combined correction numbers to the mobile station in the form of short messages; and determining a positioning result through the mobile station according to the satellite-based augmentation information and the short messages. The application can provide stable and reliable high-precision positioning services in an area lacking ground network coverage.
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