Tunnel positioning method and device, storage medium and electronic equipment

By employing basal feature image matching and an improved ICP algorithm for point cloud registration in tunnel engineering, the problems of low positioning accuracy and efficiency in tunnels have been solved, achieving high-precision, real-time tunnel positioning, which is applicable to tunnel construction under different geological conditions.

CN122434877APending Publication Date: 2026-07-21CHINA THREE GORGES CORPORATION
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Patent Information

Application Number
CN202610574608.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies in tunnel engineering suffer from problems such as low positioning accuracy, low efficiency, high cost, and difficulty in fusion of multi-sensor data. In particular, they are unable to meet real-time positioning requirements when GPS signals are missing and large-scale point cloud data processing is required.

Method used

By matching the basal feature image with the real-time feature image and combining it with the improved ICP algorithm for point cloud registration, and by calibrating the coordinates of the vehicle center point, the vertical axis and the horizontal axis, high-precision positioning of the tunnel is achieved.

Benefits of technology

It improves the accuracy and efficiency of tunnel positioning, achieving sub-centimeter-level positioning accuracy, adapting to different geological conditions, reducing labor costs, and meeting the real-time positioning needs of construction.

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Abstract

The invention discloses a tunnel positioning method and device, a storage medium and electronic equipment, and belongs to the technical field of tunnel engineering measurement and positioning, and the method comprises the steps: carrying out the calculation of a plurality of coordinates based on a transformation matrix, obtaining a plurality of coordinates after registration, and obtaining a plurality of coordinates; the plurality of coordinates after registration comprise the coordinate of the vehicle center point after registration, the coordinate of the positive direction of the longitudinal axis after registration, and the coordinate of any point in the direction of the transverse axis after registration; and the current position of the vehicle is determined based on the coordinates of the vehicle center point after registration, and pose calculation is carried out based on the coordinates of the vehicle center point after registration, the coordinates of the longitudinal axis positive direction after registration and the coordinates of any point in the transverse axis direction after registration, so that pose information of the vehicle is obtained. Through the tunnel positioning method, the positioning precision of tunnel positioning can be improved.
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