Water Meter Temperature Profiling for Precise Leak Localization

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Solution Overview

Problem

Existing methods for locating leaks in water supply networks, such as those using acoustic detection, struggle to accurately pinpoint the exact location, often requiring costly and time-consuming techniques like tracer gas or ground penetrating radar.

Innovation Solution

Utilizing the temporal temperature curve and water flow data from electronic consumption meters to calculate the length of pipe between the meter and the leak location, employing existing meter electronics for calculation without additional hardware.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If acoustic detection methods are used to detect leaks, then leak detection capability is improved, but exact location pinpointing deteriorates

Engineering Contradiction:
Improveleak detection capabilityVSAvoidleak location precision
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent introduces temperature as an intermediary parameter to bridge the gap between acoustic detection and precise location. Temperature sensors measure the thermal signature of leaking water, which serves as a mediator to determine exact leak location without requiring complex acoustic pinpointing equipment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces complex mechanical/acoustic pinpointing systems with a simpler thermal measurement approach. Instead of using expensive ground penetrating radar or tracer gas methods, the invention uses temperature sensors to detect the thermal anomaly caused by leaking water, achieving precise location with simpler technology.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If additional pinpointing techniques such as tracer gas or ground penetrating radar are used, then leak location precision is improved, but cost and time consumption deteriorate

Engineering Contradiction:
Improveleak location precisionVSAvoidtime consumption for leak localization
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent enables the consumption meter to perform leak location detection using its own integrated temperature sensor and processing capabilities. The meter autonomously measures temperature, determines temporal curves, and identifies leaks without requiring external specialized equipment or manual intervention, thereby reducing both cost and time.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent makes the consumption meter a multi-functional device that not only measures water consumption but also detects and locates leaks using its integrated temperature sensor. This universal approach eliminates the need for separate specialized pinpointing equipment, reducing overall system cost and deployment time.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If additional pinpointing equipment is deployed, then leak location precision is improved, but device complexity and investment cost deteriorate

Engineering Contradiction:
Improveleak location precisionVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the leak detection and location functions into the existing consumption meter by integrating a temperature sensor. This combination eliminates the need for separate acoustic detectors, correlators, and ground penetrating radar equipment, thereby reducing system complexity while maintaining precise leak location capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The consumption meter performs leak location detection using its own integrated temperature sensor and processing capabilities, eliminating the need for external specialized equipment. The meter autonomously measures temperature, determines temporal curves, and identifies leaks, thereby reducing both system complexity and investment cost.

Inventive Principle:
Principle #25Self-service

4Area of stationary object

If a large area is searched for leak location, then comprehensive coverage is improved, but time consumption and traffic obstruction deteriorate

Engineering Contradiction:
Improvesearch area coverageVSAvoidtime consumption for leak localization
Core Design Contradiction:
Area of stationary objectVSLoss of time

Solution Approach 1:

The patent replaces manual area-by-area searching with automated thermal detection. Temperature sensors continuously monitor the thermal signature across the network, automatically identifying the precise location of leaking water through its thermal anomaly, thereby eliminating time-consuming manual searches and traffic obstruction.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables accurate and cost-effective leak localization using existing consumption meters, reducing the need for additional investments and improving efficiency in identifying leak locations.

Implementation Method 1

the temperature profile of the medium is used to locate the leak... the change of temperature in the water network between a water source and one or more water consumption meters on the consumer side

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentUS12516999B2Method for locating a leak in a water supply network
Publication Date: 2026.01.06 KAMSTRUP
  • US12516999B2 patent drawing
  • US12516999B2 patent drawing

AI summary

A method for locating a leak (19) in a water supply network with a water source (11) and one or more water consumption meters (21, 22) on the consumer side. The method includes calculating a length of the pipe (17) between the consumption meter (21) and the leak (19) location based on a temporal temperature curve and a quantity of water flowing through the at least one consumption meter (21).