Sensus Spectrum, LLC

Zachary A Barker

Travis Smith

Amin Rasekh

Michael Ehsan Shafiee

Michael Eshan Shafiee

Bruce Campbell

Grant Muller

A method, apparatus, and system for leak detection in a distribution network having consumption meters. The distribution network is divided into zones having an upstream location and a downstream location. An upstream pressure sensor detects the upstream pressure at the upstream location and the downstream pressure sensor detects the detected downstream pressure at the downstream location. A downstream pressure lookup table is used to determine an expected pressure at each downstream location based on a range of hypothetical upstream pressures at the corresponding upstream location and consumption data from the consumption meters. The expected pressure and the detected downstream pressure at each downstream location are compared to determine if the calculated discrepancy exceeds a discrepancy threshold. If a discrepancy exceeds a discrepancy threshold, a leak location lookup table containing a set of potential leak locations based on a range of hypothetical discrepancies is used to determine a set of probable leak locations.

Method and apparatus for model-based leak detection of a pipe network

A system for managing a distribution network, the system including a network hydraulic model and an automated meter infrastructure (AMI) providing AMI data from consumption meters. The system includes subnetworks within the distribution network, nodes interconnecting the subnetworks, and boundary devices connected to the nodes. Each boundary device includes a flow meter and a pressure sensor that sense a flow and a pressure of the distribution network at the nodes at a given time step. A subnetwork hydraulic model is generated for each subnetwork from the network hydraulic model. A processing module determines a first comparison for the given time interval between the AMI data from the consumption meters within a given subnetwork, the flow and the pressure at the nodes bordering the given subnetwork, and the subnetwork hydraulic model for the given subnetwork. The distribution network is managed based at least in part on the first comparison.

Systems and methods for subnetwork hydraulic modeling

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Durham, NC, United States of America

Zachary A Barker