Water supply pipeline leakage point detection system and method based on flexible pipeline robot

Abstract

The invention provides a water supply pipeline leakage point detection system and method based on a flexible pipeline robot, and relates to the technical field of water supply pipeline leakage point detection. The system comprises the flexible pipeline robot and an upper monitoring terminal; the flexible pipeline robot is used for performing real-time positioning in a walking process to obtain real-time positioning time and real-time position information, and outputting pressure abnormal change time and real-time position information when pressure abnormal change of a water supply pipeline isdetected; and the upper monitoring terminal comprises a track generation module used for generating a walking track according to the real-time positioning time and the corresponding real-time positioninformation, a first marking module used for giving a leakage point mark on the walking track according to the real-time position information corresponding to the pressure abnormal change moment; anda second marking module used for marking the walking track containing the leakage point marks on a pre-generated water supply pipeline electronic map. Tiny pipeline leakage points can be accurately captured and positioned, and a GIS system of an underground water supply pipe network can be calibrated and automatically constructed; and the labor and equipment cost are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of water supply pipeline leak detection, in particular to a water supply pipeline leak detection system and method based on a flexible pipeline robot. Background technique [0002] At present, the main detection methods for water supply pipe network leakage are: audio-audio leak detection method, DMA partition measurement. [0003] 1) Audio-audio leak detection method: When tap water flows normally at a certain flow rate in the pipeline, it is silent and audible on the ground. However, if there is water leakage in the pipes and auxiliary facilities, the water with a certain pressure will be sprayed out through the damaged part, and it will cause a vibration sound of a certain frequency when it is hit on the earth or stone or punched into a cavity. The audio-audio leak detection method is based on this to distinguish water leakage and determine the leak point. [0004] Advantages: The tools used are simple,...

AI Technical Summary

Problems solved by technology

[0005] Disadvantages: In order to prevent noise interference during the day, leak detection must be carried out at night, which requires high technical skills for workers (master with apprentice mode, long-term experience accumulation), low detection efficiency

[0008] Disadvantages: The cost of establishing a DMA metering management area is relatively high. It not only requires flow meters and data recorders, but also needs to replace or modify valves to meet the closedness of the metering area, or renovate the original pipe network. Conduct detailed demonstrations to save investment and rationalize zoning

The closed system created by DMA zoning may cause damage to the water quality in the area; at the same time, DMA zoning will lead to an increase in the number of dead points at the end of the pipe network, and the need to install flushing points will increase costs

Valves and instruments need to be inspected regularly, which will also lead to increased costs

Images