Sewer flooding incidents in the UK are being increasingly associated with the presence of blockages. Blockages are difficult to deal with as although there are locations where they are more likely to occur, they do occur intermittently. In order to manage sewer blockage pro-actively sewer managers need to be able to identify the location of blockages promptly. Traditional closed-circuit television (CCTV) inspection technologies are slow and relatively expensive so are not well suited to the rapid inspection of a network. This is needed if managers are to be able to address sewer blockages pro-actively. This paper reports on the development of an acoustic-based sensor. The sensor was tested in a full scale sewer pipe in the laboratory and it was shown that it is able to find blockages and identify structural aspects of a sewer pipe such as a manhole and lateral connection. Analysis of the received signal will locate a blockage and also provide information on its character. The measurement is very rapid and objective and so inspections can be carried out at much faster rates than using existing CCTV technologies.udud
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机译:英国的下水道洪水事件越来越多地与堵塞相关。堵塞很难处理,因为尽管在某些位置更容易发生堵塞,但它们确实会间歇性地发生。为了主动管理下水道堵塞,下水道管理者需要能够迅速确定堵塞的位置。传统的闭路电视(CCTV)检查技术速度较慢且相对昂贵,因此不适用于网络的快速检查。如果管理人员能够主动解决下水道堵塞,则需要这样做。本文报告了基于声学的传感器的发展。该传感器在实验室的大型下水道中进行了测试,结果表明该传感器能够发现堵塞并识别下水道的结构方面,例如人孔和侧向连接。对接收信号的分析将确定阻塞,并提供有关其特性的信息。测量是非常快速和客观的,因此可以比使用现有CCTV技术更快地进行检查。 ud ud
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