A direct-buried cable non-calibration positioning method based on quantum heuristic field and topology perception

By employing quantum-inspired fields and topological sensing methods, a complex-valued probability amplitude field and a parameterized Schrödinger-type equation are constructed to solve the multimodal signal fusion problem in underground cable path location, achieving high-precision, calibration-free cable location suitable for complex urban environments.

CN122391523APending Publication Date: 2026-07-14YUNNAN ELECTRIC POWER TESTING & RES INST (GRP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YUNNAN ELECTRIC POWER TESTING & RES INST (GRP) CO LTD
Filing Date
2026-06-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve high-precision, calibration-free positioning of underground cable paths in complex urban environments, especially in areas with dense reinforced concrete structures. Multimodal signals are difficult to fuse effectively, and are also affected by strong scattering and noise interference, making it difficult for traditional methods to guarantee continuity and anti-interference capabilities.

Method used

A quantum-inspired field and topological sensing approach is adopted. By constructing a complex-valued probability amplitude field, an implicit neural network and a parameterized Schrödinger-type equation are used to achieve unified field reconstruction of multimodal data. Combined with physical consistency and data consistency terms, iterative fitting and gauge field adjustment are performed to output the location results of the cable's three-dimensional path, burial depth and branch nodes.

Benefits of technology

It achieves centimeter-level cable path reconstruction in high-noise and complex environments, supports cable surveys, construction early warning, and dynamic fault diagnosis, and has high precision and robustness, without the need for hardware synchronization or absolute calibration.

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Abstract

The application relates to the technical field of cable positioning, and discloses a direct-buried cable non-calibration positioning method based on a quantum heuristic field and topological perception. The method obtains an observation set Y representing the characteristics of a plurality of physical fields of an underground cable, defines a complex probability amplitude field as a unified field and converts the unified field into an implicit neural network to establish a parameterized Schrodinger equation. The observation set is mapped to the unified field and iteratively fitted to obtain initial values of the unified field and a gauge field under the constraint of the equation. A joint loss function containing a physical and data consistency term is constructed, and the unified field reconstruction is completed by alternately updating. Based on the reconstructed unified field, the three-dimensional path of the cable, the depth curve, the branch and joint node positioning results and the confidence evaluation information are output. The method has high robustness in a strong scattering and low signal-to-noise ratio scene such as reinforced concrete, can realize centimeter-level continuous path reconstruction, is suitable for cable survey, construction early warning and dynamic fault diagnosis, and has the advantages of high precision, non-calibration and engineering feasibility.
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