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Record W2460406066 · doi:10.1061/9780784479957.025

An Accelerometer-Based Real-Time Monitoring and Leak Detection System for Pressurized Water Pipelines

2016· article· en· W2460406066 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuePipelines 2016 · 2016
Typearticle
Languageen
FieldEngineering
TopicWater Systems and Optimization
Canadian institutionsConcordia University
FundersQatar National Research Fund
KeywordsPipeline transportLeakAccelerometerReal-time computingPipeline (software)Condition monitoringWireless sensor networkComputer scienceSIGNAL (programming language)Leak detectionThreshold limit valueEngineeringMarine engineeringSimulationElectrical engineeringEnvironmental engineeringMechanical engineering

Abstract

fetched live from OpenAlex

Aging infrastructure, and pipelines installed and operated under poor conditions in pressurized drinking water networks are highly susceptible to the threat of leaks; these leaks pose economical, health, and environmental threats. To allow early repair and condition monitoring, multiple researchers tried to address the issue of leak detection and leak location pinpointing using either biological, hardware-based, or software-based solutions. The previous models came short in identifying practical and cost-effective models for combining real-time monitoring, identification, and location predicting. The research presented in this article proposes a model for a real time monitoring system capable of pinpointing the location of single event leaks in pressurized water pipelines. The model relies on wireless accelerometers placed within the network on the exterior of the pipelines. The vibration signals derived from each accelerometer was assessed and analyzed by the model to identify the monitoring index (MI) at each sensor on the pipeline. A leak was identified when the value of the monitoring index spiked above the acceptable ranges identified through an experimental procedure for each sensor. The value of the monitoring index on the left and right of the suspected leak is processed and utilized along with the distance between the two sensors. This allowed the model to identify the original source of the signal i.e. the leak location within a maximum range of ± 25 cm. The leak location was determined by means of a regression equation developed from experimental data for each sensor. Experiments were performed on one inch cast iron pipelines, one inch and two inch PVC pipelines using single event leaks and the results were displayed.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.514
Threshold uncertainty score0.502

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.012
GPT teacher head0.217
Teacher spread0.204 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it