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Leakage Analysing and Model Study on Urban Water Distribution System

Author: LiuBaoChuan
Tutor: WuChenGuang
School: Harbin Institute of Technology
Course: Municipal Engineering
Keywords: Water supply system Dropout positioning model Pattern Recognition Probabilistic neural network
CLC: TU991.33
Type: Master's thesis
Year: 2009
Downloads: 115
Quote: 1
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Dropout water IDM widespread serious problem , regardless of the water supply system pipe , and over time will inevitably occur dropout . China 's water scarcity , only a quarter of the world average per capita possession of water resources , water pollution , soil erosion , dropout is not only a waste of valuable water resources , bringing Disaster , returned to the water supply enterprises . the large economic losses. Therefore, the dropout issue has become the focus of the important issues in China 's water supply industry . Water supply system when the dropout occurs , the pressure monitoring point pressure value will appear with different levels of volatility , and the type of dropout position , type dropout level , corresponding to the fluctuation spectrum is not the same match the person's fingerprint , fingerprint identification , it can determine the identity of the person , the use of probabilistic neural network model for pattern recognition of the fluctuation spectrum , thus positioning the dropout position . Probabilistic neural network using Bayesian classifier selector to the fluctuations of the pressure monitoring points dropout occurs as a neural network input to set different dropout position of the various modes , and the mode set as the output of the neural network , the network training , dropout positioning model , and the establishment of probabilistic neural network model to calculate the results of the analysis, preliminary checking and correction model . Finally, to as SGS actual water supply systems , for example , to check the actual monitoring data to establish the probability neural network model to analyze the existing problems of the model , and model-based water supply industry in China The dropout control the work of the recommended measures .

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CLC: > Industrial Technology > Building Science > Municipal Engineering > Water supply project ( on the Water Works ) > Water distribution > Water distribution network
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