Power Measurement Ltd.

Bernard C Mansey

Simon H Lightbody

Martin A Hancock

Michael Edward Teachman

Stewart John Harding

Geoffrey T Hyatt

Scott Henneberry

Arthur B Wynans

Darrin Graham Marr

Systems and methods are disclosed for accurately measuring delivered or supplied electrical energy over an extended range of values. In one embodiment, a meter for monitoring the energy at a remote site includes a current sensor for measuring the current supplied to or from the site, and a microprocessor that generates output readings with an enhanced accuracy over a wide range of outputs in response to digital samples received from the sensor. In a one implementation, the meter is configured to provide readings with an accuracy that satisfies the standards IEC 60687 1A 0.5S, IEC 60687 5A 0.5S, ANSI C12.20 Class 20 0.5, and ANSI C12.20 Class 2/10 0.5. In another implementation, the meter is configured to provide readings with an accuracy that satisfies the standards IEC 60687 1A 0.2S, IEC 60687 5A 0.2S, ANSI C12.20 Class 20 0.2, and ANSI C12.20 Class 2/10 0.2.

Energy device with an extended dynamic range on current readings

Systems and methods for ensuring data integrity in a mesh network. A mesh network can include multiple RF devices. Transmitting quality data in or on the mesh network is improved using communication validation functions. The communication validation functions ensure a reliable communication network, preserve data during a network outage, and validate data. The communication validation functions can measure or control data quality within a communication and analysis network. The communication validation function operates to control data quality, for example, by measuring the quality of wireless links, ensuring the presence of redundant links, testing the ability of the mesh network to establish a backup communication path, generating alarms based on communication thresholds, tracking the communication path followed by communication packets, and identifying placement locations for additional RF devices.

Data integrity in a mesh network

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Malahat, Canada

Bernard C Mansey