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Remote water leakage detection utilising GPRS and 3G communications

The Phocus3m from Primayer combines specialist leak noise detection and versatile communications technology to create a fixed network to monitor leakage. The logger samples pipeline noise at one-second intervals during each of three sample epochs during the night when background acoustic noise is lowest. It carries out statistical analysis on each of the three epochs to determine the Leakage Confidence Factor. The lowest leak noise is also measured, termed the Critical Noise Value: important as a measure of how close to the leak the logger is situated.

Once installed, leak noise data calculated using the proven Primayer algorithm. Data is transmitted via 3G/GPRS removing the requirement for site visits and “drive by” data retrieval.

Potential leak areas quickly identified

Phocus3m allows leakage teams to monitor the status of each logger deployed from any internet enabled device. The cloud-based analysis tool, PrimeWeb can seamlessly be used to interpret results. The system works in conjunction with *Google Maps technology to provide a live on-screen tracking, allowing leakage teams to respond quickly to problem areas and bring them under control efficiently.


Status report for deployed loggers
Status report for deployed loggers

* Courtesy of Google maps

Key Features

  • Remote leakage identification to reduce leak run-time and improve efficiency
  • PrimeWeb map based data available
  • Audio files available for remote listening to confirm presence of leak noise
  • Phocus noise algorithm reduces incidence of undetected leaks
  • Three sample periods to separate usage from leakage thus reducing false alarms
  • No infrastructure above ground required
  • One, small, low cost logger per installation
  • Embedded roaming SIM for optimum communications


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Cloud based data delivery available

Phocus3m Schematic