High-precision indoor and outdoor navigator fused with Beidou GPS

By integrating BeiDou and GPS into a high-precision indoor and outdoor navigation system, synchronous acquisition and processing of BeiDou and GPS signals, dynamic weight allocation and differential enhancement are achieved. This solves the problems of insufficient spatiotemporal reference alignment, signal acquisition and preprocessing capabilities of existing equipment, improves positioning accuracy and stability, and adapts to seamless navigation across the entire domain.

CN122172245APending Publication Date: 2026-06-09SHENZHEN XINGBIAOHANG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN XINGBIAOHANG TECHNOLOGY CO LTD
Filing Date
2026-03-27
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing BeiDou/GPS dual-mode navigation devices have shortcomings in spatiotemporal reference alignment accuracy, signal acquisition and preprocessing capabilities, and differential enhancement adaptability, resulting in insufficient positioning accuracy and stability, and failing to meet the requirements for seamless, high-precision navigation across the entire domain.

Method used

The system employs a dual-mode signal acquisition module, a spatiotemporal reference registration module, a scene feature perception module, a fusion weight calculation module, and a positioning coordinate output module to achieve synchronous acquisition and processing of BeiDou and GPS signals, dynamic weight allocation and differential enhancement, and full-domain coordinate calculation and output.

Benefits of technology

It improves the positioning accuracy of dual-system fusion, maintains the stability of positioning performance in weak signal scenarios, achieves seamless switching and continuous coverage between indoor and outdoor scenarios, and adapts to the high-precision navigation needs of multiple industries.

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Abstract

This invention relates to the field of satellite positioning technology, specifically to a high-precision indoor and outdoor navigation device integrating BeiDou and GPS. It includes a main processor and a satellite signal receiving antenna. Its distinguishing feature is that it further includes a dual-mode signal acquisition module, a spatiotemporal reference registration module, a scene feature perception module, a fusion weight calculation module, and a positioning coordinate output module. This invention provides a high-precision indoor and outdoor navigation device integrating BeiDou and GPS. By achieving precise synchronization of the time references of the BeiDou-3 and GPS dual systems and unbiased coordinate system transformation, it eliminates system-level positioning deviations between the two systems, thereby improving the upper limit of the dual-system fusion positioning accuracy. It simultaneously completes the synchronous acquisition and standardized preprocessing of dual-frequency satellite signals, performs cycle slip repair and gross error removal of observation values, enhances the signal's resistance to obstruction and multipath effects, and maintains stable positioning performance in weak signal scenarios.
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