给水管网故障实时诊断方法

本文提出了城市给水管网故障实时诊断的一个快速、有效和实用方法。方法通过实时监测给水管网中3个位置的水压变化，利用人工神经网络技术来诊断故障位置、故障程度和故障影响范围。方法可适用于我国北方冬季严寒气候等常常导致的给水管网爆管事故及日常故障的实时诊断。作为给水管网故障诊断的重要内容之一，本文还建立了给水管网局部破坏状态下水力分析的方法。最后，本文以一小型给水管网为例对方法进行了验证，并就实际应用中的几个问题进行了讨论。

On-line fault diagnosis of water distribution systems

This paper proposed a methodology for fault diagnosis of a water distribution system by monitoring the water pressure on-line at three nodes in the water distribution system.A neural network-based inverse analysis method was established to detect the location and extent of the fault and the affected area based on the variation of water pressure.This paper also developed a method for hydraulic analysis of a water distribution system with drainage.It was shown through an example that the methodology is effective and practical.