System and method for acoustic leak detection in a utility distribution system
Номер патента: EP4399439A1
Опубликовано: 17-07-2024
Автор(ы): Jens Lykke Sørensen, Mick Althoff KRISTENSEN, Peter Schmidt Laursen, Soren Tonnes Nielsen, Sune Hoveroust DUPONT
Принадлежит: Kamstrup AS
Опубликовано: 17-07-2024
Автор(ы): Jens Lykke Sørensen, Mick Althoff KRISTENSEN, Peter Schmidt Laursen, Soren Tonnes Nielsen, Sune Hoveroust DUPONT
Принадлежит: Kamstrup AS
Реферат: A system and a method for identifying a leak indication in a utility distribution system is de- scribed. A pipe network for supplying a utility to a multitude of service connections includes a plurality of acoustic sensors mounted at the service connections. The acoustic sensors are preferably integrated in ultrasonic flow meters. The method comprises the steps of obtaining information about a time of change (55) of a fluid pressure and then establishing a first noise indicator from the noise measured by the acoustic sensors before said time of change (55), establishing a second noise indicator from the noise measured after said time of change (55); and then correlating one or more first noise indicators and second noise indicators with the fluid pressure to identify service connections subject to leak indications. A leak detection sys- tem based on a mathematical cross correlation of noise indicators and fluid pressure in a fluid pipe system is also described.
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