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.

CN122409866APending Publication Date: 2026-07-17CHINA THREE GORGES CORPORATION
View PDF 0 Cites 0 Cited by

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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122409866A_ABST
    Figure CN122409866A_ABST
Patent Text Reader

Abstract

本发明涉及检查井探测技术领域,公开了一种排水管网检查井探测方法、装置及电子设备,方法包括:获取探头沿柔性导轨移动过程中不同时刻的惯性测量数据、编码器位移数据和扫描数据;根据惯性测量数据和编码器位移数据进行惯性航位推算,得到探头在不同时刻的状态参数集;获取射频定位读取器读取到各射频定位标签时各射频定位标签对应的绝对深度;基于绝对深度和射频定位读取器读取到各射频定位标签时的状态参数集对探头在不同时刻的状态参数集进行校正,得到探头精准状态参数集;根据探头精准状态参数集对扫描数据进行坐标映射得到三维坐标集,并对三维坐标集进行成像畸变补偿处理得到检查井三维点云模型。本发明实现了检查井水下部分的有效监测。
Need to check novelty before this filing date? Find Prior Art