On-line automatic detection device for pipe network leakage

Abstract

The invention discloses an on-line automatic test device for pipe network leakage and belongs to the technical field of detection of the pipe network leakage. The on-line automatic detection device comprises a water meter; and a sound sensor, a sound signal acquirement circuit, a time control device, a signal processing circuit, a comparison circuit, a communication module and a power supply are arranged in the water meter. Compared with the prior art, the on-line automatic detection device regularly and automatically collects and processes sound information in the pipe network through the sound sensor installed in the water meter and judges whether the pipe network has leakage after comparing with the standard frequency spectrum; due to automatic detection, the device is time-saving and labor-saving; moreover, the phenomenon that detection result and detection standard are inconsistent because manual detection of leakage depends on personal experience is avoided; and a detection result provided by the detection device has characteristics of objectivity and accuracy.

Description

technical field [0001] The invention relates to the technical field of pipe network leakage detection, in particular to an online automatic detection device for pipe network leakage combined with water meter technology. Background technique [0002] The urban water supply network is an important infrastructure of the city and the material basis for the survival and development of the city. It is called the "lifeline" of the city. Its maintenance and management level directly affect the daily life of citizens and the production and operation of factories and enterprises. Due to the long-term disrepair of pipelines or the interference of other pipeline constructions, leaks and leaks occur from time to time, and most of the leaks are unknown for a long time, resulting in a great waste of water resources. Today, with the rapid economic development and urbanization, the leakage of water supply pipe network not only affects the water safety of residents, but also affects the soci...

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Problems solved by technology

[0003] At present, to reduce the leakage of the pipeline network, on the one hand, the construction quality management should be strengthened during pipeline construction, which can reduce the leakage of the pipeline network to a certain extent; Most of the traditional leak detection methods require a professional leak detection team to carry out the leak detection work, which is not only time-consuming and laborious, but also, because the leak detection effect largely depends on the experience of the leak detection personnel, therefore, the leak detection effect cannot be obtained. Guaranteed, sometimes, different leak testers will get different results due to the different standards everyone relies on

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