基于真北校准的AR空间移动误差动态管理方法及平台
By adopting a dynamic management method for AR spatial movement errors based on true north calibration, and combining GNSS and IMU data, the calibration scheme is adaptively selected and error correction is performed. This solves the problems of directional deviation and position drift caused by equipment movement in underground pipeline AR systems, thereby improving positioning accuracy and operational reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO
- Filing Date
- 2025-12-15
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional AR visualization technology for underground pipelines, the pose drift caused by equipment movement and magnetic field interference cause the true north direction to be inaccurate. The true north calibration scheme is fixed and lacks dynamic adaptive control, making it difficult to solve the combined problem of directional deviation and position drift, which affects the accuracy and reliability of the operation.
Based on the position and magnetic field characteristics of the AR terminal obtained by the intelligent sensor, the true north calibration scheme is adaptively selected, and true north calibration is performed by combining GNSS and IMU data. Error correction strategy is obtained and error correction is performed to dynamically manage AR spatial movement error.
It achieves anti-interference and accuracy of true north direction in complex magnetic field environments, improves the positioning accuracy and operational reliability of AR pipeline visualization, and ensures the reliability of decision-making for long-distance inspection and precise positioning.
Smart Images
Figure CN121761936B_ABST