Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks

Discovering very small water leaks at the household level is one of the most challenging goals of smart metering. While many solutions for sudden leakage detection have been proposed to date, the small leaks are still giving researchers a hard time. Even if some devices can be found on the market, t...

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Autores principales:	Marco Carratù, Salvatore Dello Iacono, Giuseppe Di Leo, Consolatina Liguori, Antonio Pietrosanto
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	water leak detection IoT smart water meter smart city EMPIR Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/ffc117f4ce2f4efe923230f36747bb83
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spelling	oai:doaj.org-article:ffc117f4ce2f4efe923230f36747bb832021-11-11T19:13:05ZImage Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks10.3390/s212172511424-8220https://doaj.org/article/ffc117f4ce2f4efe923230f36747bb832021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7251https://doaj.org/toc/1424-8220Discovering very small water leaks at the household level is one of the most challenging goals of smart metering. While many solutions for sudden leakage detection have been proposed to date, the small leaks are still giving researchers a hard time. Even if some devices can be found on the market, their capability to detect a water leakage barely reaches the sensitivity of the employed mechanical water meter, which was not designed for detecting small water leakages. This paper proposes a technique for improving the sensitivity of the mechanical register water meters. By implementing this technique in a suitable electronic add-on device, the improved sensitivity could detect very small leaks. This add-on device continuously acquires the mechanical register’s digital images and, thanks to suitable image processing techniques and metrics, allows very small flows to be detected even if lower than the meter starting flow rate. Experimental tests were performed on two types of mechanical water meters, multijet and piston, whose starting flow rates are 8 L/h and 1 L/h, respectively. Results were very interesting in the leakage range of [1.0, 10.0] L/h for the multijet and even in the range [0.25, 1.00] L/h for the piston meter.Marco CarratùSalvatore Dello IaconoGiuseppe Di LeoConsolatina LiguoriAntonio PietrosantoMDPI AGarticlewater leak detectionIoTsmart water metersmart cityEMPIRChemical technologyTP1-1185ENSensors, Vol 21, Iss 7251, p 7251 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	water leak detection IoT smart water meter smart city EMPIR Chemical technology TP1-1185
spellingShingle	water leak detection IoT smart water meter smart city EMPIR Chemical technology TP1-1185 Marco Carratù Salvatore Dello Iacono Giuseppe Di Leo Consolatina Liguori Antonio Pietrosanto Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks
description	Discovering very small water leaks at the household level is one of the most challenging goals of smart metering. While many solutions for sudden leakage detection have been proposed to date, the small leaks are still giving researchers a hard time. Even if some devices can be found on the market, their capability to detect a water leakage barely reaches the sensitivity of the employed mechanical water meter, which was not designed for detecting small water leakages. This paper proposes a technique for improving the sensitivity of the mechanical register water meters. By implementing this technique in a suitable electronic add-on device, the improved sensitivity could detect very small leaks. This add-on device continuously acquires the mechanical register’s digital images and, thanks to suitable image processing techniques and metrics, allows very small flows to be detected even if lower than the meter starting flow rate. Experimental tests were performed on two types of mechanical water meters, multijet and piston, whose starting flow rates are 8 L/h and 1 L/h, respectively. Results were very interesting in the leakage range of [1.0, 10.0] L/h for the multijet and even in the range [0.25, 1.00] L/h for the piston meter.
format	article
author	Marco Carratù Salvatore Dello Iacono Giuseppe Di Leo Consolatina Liguori Antonio Pietrosanto
author_facet	Marco Carratù Salvatore Dello Iacono Giuseppe Di Leo Consolatina Liguori Antonio Pietrosanto
author_sort	Marco Carratù
title	Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks
title_short	Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks
title_full	Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks
title_fullStr	Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks
title_full_unstemmed	Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks
title_sort	image processing technique for improving the sensitivity of mechanical register water meters to very small leaks
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ffc117f4ce2f4efe923230f36747bb83
work_keys_str_mv	AT marcocarratu imageprocessingtechniqueforimprovingthesensitivityofmechanicalregisterwatermeterstoverysmallleaks AT salvatoredelloiacono imageprocessingtechniqueforimprovingthesensitivityofmechanicalregisterwatermeterstoverysmallleaks AT giuseppedileo imageprocessingtechniqueforimprovingthesensitivityofmechanicalregisterwatermeterstoverysmallleaks AT consolatinaliguori imageprocessingtechniqueforimprovingthesensitivityofmechanicalregisterwatermeterstoverysmallleaks AT antoniopietrosanto imageprocessingtechniqueforimprovingthesensitivityofmechanicalregisterwatermeterstoverysmallleaks
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Image Processing Technique for Improving the Sensitivity of Mechanical Register Water Meters to Very Small Leaks

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