EP 2583075 A1 20130424 - METHOD FOR DETECTING AND LOCATING A LEAK IN A DRINKING WATER SUPPLY NETWORK
Title (en)
METHOD FOR DETECTING AND LOCATING A LEAK IN A DRINKING WATER SUPPLY NETWORK
Title (de)
VERFAHREN ZUR ERKENNUNG UND ORTUNG EINES LECKS IN EINEM TRINKWASSERVERSORGUNGSNETZ
Title (fr)
PROCÉDÉ DE DÉTECTION ET DE LOCALISATION D'UNE FUITE DANS UN RÉSEAU DE DISTRIBUTION D'EAU POTABLE
Publication
Application
Priority
- DE 102010023776 A 20100615
- EP 2011059797 W 20110614
Abstract (en)
[origin: WO2011157685A1] The invention relates to a method for locating a leak in a drinking water supply network by carrying out an amplitude and frequency analysis of leak noise spectra (10, 17) which are recorded at several points in the network, the existence of a leak (11) being derived from the presence of typical leak noises and the position of the leak being derived from the intensity and frequency data of the leak noise data. A sum level signal is determined on the individual measuring points which contain information about the noise level present at the measuring point; the sum level signal being subjected to the frequency analysis and the signal component determines the maximum frequency (FM) contained in the sum signal and is significantly above the noise level; for the respective measuring point, an index variable LI = SP ? F is formed, said index variable being a value for the product from the sum signal level (SP) and the maximum frequency (MF) of the noise spectrum provided on the measuring point, and the position of the leak is deduced from the spatial distribution of identical values of the index variable, corresponding to the same distances of the measuring point from the measuring point to the leak which is being looked for.
IPC 8 full level
G01M 3/24 (2006.01)
CPC (source: EP)
G01M 3/243 (2013.01)
Citation (search report)
See references of WO 2011157685A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010023776 A1 20111215; DE 102010023776 B4 20190228; EP 2583075 A1 20130424; WO 2011157685 A1 20111222
DOCDB simple family (application)
DE 102010023776 A 20100615; EP 11735812 A 20110614; EP 2011059797 W 20110614