Acoustic Pipe Leak Localization with Fewer Sensors
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Solution Overview
Problem
Conventional pipe leakage detection systems, particularly in subsea applications, suffer from limited range and inability to accurately localize leaks due to the need for multiple sensors and interference from environmental noise, making them inefficient and costly.
Innovation Solution
A system using emitting devices to propagate acoustic pulses within the pipe, amplified by hydrophones, and frequency sensing devices to detect frequency differentials, combined with a control system and GPS for precise leak localization, powered by renewable energy sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional acoustic sensors are used for leak detection, then leak presence can be identified, but the detection range is limited to approximately 800 meters requiring numerous sensors
Solution Approach 1:
The patent combines multiple functions into a single integrated device: an acoustic sensor for detecting leaks, a GPS receiver for location identification, and a cellular transceiver for data transmission are merged into one unit that can be disposed at fewer strategic locations along the pipeline, eliminating the need for numerous separate sensors while expanding effective monitoring coverage
Solution Approach 2:
The monitoring device performs multiple functions simultaneously: it detects acoustic signals from leaks, determines geographic location via GPS, transmits data through cellular networks, and provides power management. This multi-functionality allows a single device to replace what would traditionally require multiple specialized components, reducing overall system complexity
2Reliability
If multiple acoustic sensors are deployed to cover entire pipeline length, then detection coverage improves, but system cost and complexity increase
Solution Approach 1:
The patent adds the spatial dimension of GPS location data to the acoustic detection system. Instead of relying solely on acoustic signal strength and timing for localization, the GPS component provides direct geographic coordinates, enabling strategic placement of fewer sensors at critical locations while maintaining comprehensive coverage through location-aware monitoring
3Reliability
If environmental noise is present in subsea applications, then detection accuracy decreases, but the system must still function reliably
Solution Approach 1:
The system continuously monitors acoustic signals and compares them against baseline environmental noise patterns. By establishing reference levels of normal subsea acoustic activity and comparing real-time measurements against these references, the system can distinguish between background noise and actual leak signals, maintaining detection accuracy in noisy environments
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 continuous, accurate, and real-time detection and localization of leaks along the entire pipe length, minimizing environmental impact and facilitating quick remediation.
Implementation Method 1
an emitting device configured to propagate an acoustic pulse through a fluid within a pipe
Implementation Method 2
a frequency sensing device configured to detect a frequency of the propagated acoustic pulse
Data Source
AI summary
Various embodiments of the present invention are directed to a leak localization system configured to identify the presence of a leak within a pipe system and locate the same to a high degree of accuracy. At least one embodiment of such a leak localization system may comprise an emitting device configured in connection with an amplification device for the propagation of an acoustic pulse throughout the pipe. Distally disposed in relation to such emitting device may be at least one frequency sensing device configured to detect the frequency of the acoustic pulse, with the intent of determining any changes thereto. Such frequency sensing device(s) may be configured to generate sensor data which may used to localize an existing leak. Such sensor data may be communicated to a control center via an interconnected control system, wherein the localized leak may subsequently be communicated to the owner of the pipe for remediation.