Bluetooth positioning precision optimization method based on high-precision positioning

By constructing a Bluetooth positioning error field and adaptively updating it, the problem of decreased accuracy of Bluetooth positioning in complex environments is solved, achieving high-precision and stable positioning results.

CN122054076APending Publication Date: 2026-05-15HANGZHOU PINBO TECH CO LTD
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Patent Information

Application Number
CN202610177406.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-07
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing Bluetooth positioning technology struggles to accurately reflect signal propagation characteristics in complex environments, resulting in decreased positioning accuracy over time and a lack of dynamic adjustment capabilities to environmental changes, leading to unstable positioning results.

Method used

By synchronizing and preprocessing Bluetooth signal data from multiple base stations, and combining spatial path constraints and energy conservation constraints, a Bluetooth positioning error field is constructed. Error inversion and adaptive updates are then performed to identify occluded objects and compensate for errors, thereby optimizing the positioning results.

Benefits of technology

It effectively suppresses positioning errors in complex environments, improves positioning accuracy and stability, has adaptive capabilities, and is suitable for dynamic scenarios such as industrial sites and large parks.

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Abstract

The invention discloses a Bluetooth positioning precision optimization method based on high-precision positioning, and the method comprises the steps: collecting Bluetooth signal data, and carrying out the preprocessing of the Bluetooth signal data, and generating a multi-base-station synchronous observation sequence; constructing a Radon operator path constraint module, and generating spatial integral constraint data; introducing energy conservation and variation constraint, and performing inversion to generate a Bluetooth error distribution field; a signal deflection event is detected, positioning uncertainty is evaluated, and risk information is generated; acquiring calibration position information, and locally updating an error field according to an error energy migration principle; and calling the updated error field, compensating and smoothing the positioning result, and outputting a final track. According to the method, the Bluetooth positioning error field capable of being self-updated is generated through construction of the spatial path constraint and inversion, and continuous improvement of the Bluetooth positioning precision and the trajectory stability in a complex dynamic environment is achieved.
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