A sewer inspection well detection method, device and electronic equipment
By using inertial dead reckoning and radio frequency positioning correction of the flexible guide rail and probe system, combined with an active cleaning device, the problems of probe swaying and anti-interference in manhole detection are solved, achieving high-precision three-dimensional modeling and accurate quantification of silt distribution, supporting the operation and maintenance management of drainage pipe networks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA THREE GORGES CORPORATION
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
In existing well inspection technologies, probes are prone to wobbling, resulting in poor scanning stability. Sonar has weak anti-interference capabilities and insufficient positioning accuracy, making it impossible to construct high-precision three-dimensional models. Furthermore, traditional methods cannot effectively monitor the accumulation of sediment at the bottom of the well.
By employing a flexible guide rail and probe system, combined with an inertial measurement unit, radio frequency positioning tags, and scanning devices, continuous sensing and precise correction of probe status parameters are achieved through inertial dead reckoning, radio frequency positioning correction, and active cleaning devices. This generates a high-precision three-dimensional point cloud model, and noise interference is eliminated through acoustic window cleaning.
It achieves high-precision 3D modeling of the underwater structure of inspection wells and accurate quantification of silt distribution, improving the stability of detection and the authenticity of data, and supporting the operation and maintenance management and early warning of drainage pipe networks.
Smart Images

Figure CN122409866A_ABST