Raytheon Bbn Technologies Corp.

George Woods Shepard

Ronald Bruce Coleman

Richard Madden

Paul James Remington

Yevgeniy Yakov Dorfman

John Scott Knight

John Joseph Phelan

Methods and systems of parasitic sensing are shown and described. The method includes, measuring, at a first time using one or more electrical elements native to a domain, a parameter of a circuit within the domain and measuring, at a second time using the one or more electrical elements native to the domain, the parameter. The method also includes, comparing the parameter measurement from the first time to the parameter measurement at the second time and determining, in response to the comparison, that an activity occurred within the domain.

Methods and systems for parasitic sensing

A method and apparatus of performing power line sensing is presented. The method and apparatus includes a three-axial vector magnetic sensor for detecting a magnetic field radiated from a power line. An active isolation system is used to determine the effects of noise and other magnetic fields on the three-axial vector magnetic sensor. Power line status information is then determined from data received from the three-axial vector magnetic sensor and the active isolation system.

Remote passive detection of failed power lines and estimation of power line current and power flow

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Carlisle, MA, United States of America

George Woods Shepard