Leak Localization / Correlating System
Method 1 is a two CP correlation system in which two CP loggers are deployed either side of a known leak and record for a number of time slices. Data is downloaded into the software, usually locally onto a laptop and site information (distance between CPs, pipe diameter and material) entered. The software correlates this information and gives an exact leak position. This system offers no trailing wires or radio communications, filtering and PC processing that allows for a sharp definition of noise and a no recharging battery life of more than three years. Day or night correlation is possible.
Method 2, a three CP correlation system, requires 3 CP loggers are deployed around a known leak and record for a number of time slices. Data is downloaded into the software, usually locally onto a laptop and site information (distance between CPs) entered. The software correlates this information and gives an exact leak position. This process eliminates the need to know the exact diameter and material of the main, is capable of locating leaks collelating around Ts, requires no trailing wires or radio communications, and has a battery life of more than five years.
A full deployment, localization and correlation system can be employed, utilizing six or more CP loggers deployed in a district where there is a known leakage problem. Loggers record for a number of time slices and can be moved if necessary until the entire district has been covered. Data is downloaded into the software and a localizing module run, giving an approximate location of one or more leaks in the system. GIS or site information can then be input for the CPs relevant to the approximate leaks and a second, correlating module run over the same data giving an exact location. This method targets resources and allows full analysis on an office PC.
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