Method and device for diagnosing and detecting running state of drainage pipe network

Abstract

The invention provides a drainage pipe network operation state diagnosis method and device. The device comprises a bottom cover, a top cover, a counterweight system, an MEMS gyroscope acceleration system, a starting system and a polymer lithium battery. The device can collect angular acceleration and axial acceleration data according to the characteristic that the MEMS gyroscope accelerometer in the instrument can generate angular acceleration and axial acceleration changes along with the change of the motion state of the water flow, so that secondary integral displacement superposition is performed, the water flow motion trail of the drainage pipe network is reproduced, and the model is compared with an established model library. The running state of a water outlet pipe network can be diagnosed, and the functions of detecting and positioning abnormal running working conditions such as damage, pipe breakage and deposition in a drainage pipeline can be achieved. The method can be applied to finding out the current situation of the drainage pipe network, mastering and evaluating the running state of the drainage pipe network, preventing and treating urban waterlogging, treating black and odorous river channels and the like, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of municipal drainage pipe network management systems, and in particular relates to a method and device for diagnosing and detecting the running state of a drainage pipe network. Background technique [0002] The urban drainage pipe network system is buried deep underground, "invisible and intangible". Due to insufficient attention and lagging management, problems such as urban waterlogging, low sewage treatment efficiency, and black and smelly water have become increasingly prominent in recent years. As of May 2018, the number of black and odorous water bodies identified in my country is 2,100, with a total drainage area of ​​1,463km 2 , the problem of black and smelly rivers in cities is becoming more and more serious, seriously affecting urban residents' sensory awareness of environmental quality and bringing a greater impact on people's lives. However, there are insufficient diagnostic techniques for pr...

AI Technical Summary

Problems solved by technology

[0005] Advantages and disadvantages: The instrument inspection technology has the advantages of clear image, high safety and repeatable image viewing, but there are also problems such as inaccurate positioning, difficulty in adapting to the pipeline silting environment, high cost and low efficiency

[0008] Advantages and disadvantages: This method can only be used to diagnose abnormal inflow water in the drainage system, but it cannot identify conditions such as siltation and subsidence. At the same time, there are problems such as complex monitoring environment and low data accuracy.

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