Paper Info
Title
A Hierarchy Of Change-Point Methods For Estimating The Time Instant Of Leakages In Water Distribution Networks
Abstract
Leakages are a relevant issue in water distribution networks with severe effects on costs and water savings. While there are several solutions for detecting leakages by analyzing of the minimum night flow and the pressure inside manageable areas of the network (DMAs), the problem of estimating the time-instant when the leak occurred has been much less considered. However, an estimate of the leakage time-instant is useful for the diagnosis operations, as it may clarify the leak causes. We here address this problem by combining two change-point methods (CPMs) in a hierarchy: at first, a CPM analyses the minimum night flow providing an estimate of the day when the leakage started. Such an estimate is then refined by a second CPM, which analyzes the residuals between the pressure measurements and a network model in a neighborhood of the estimated leakage day. The proposed approach was tested on data from a DMA of a big European city, both on artificially injected and real leakages. Results show the feasibility of the proposed solution, also when leakages are very small.
Year
DOI
Venue
2013
10.1007/978-3-642-41142-7_62
ARTIFICIAL INTELLIGENCE APPLICATIONS AND INNOVATIONS, AIAI 2013
Keywords
Field
DocType
Leakages in Water Distribution Networks, Change-Point Estimation, Nonstationarity Detection
Instant,Leak,Leakage (electronics),Simulation,Computer science,Flow (psychology),Distribution networks,Pressure measurement,Hierarchy,Network model
Conference
Volume
ISSN
Citations 
412
1868-4238
2
PageRank 
References 
Authors
0.44
2
3
Name
Order
Citations
PageRank
Giacomo Boracchi132430.49
Vicenç Puig232557.80
Manuel Roveri327230.19