MAGNETIC FIELD DETECTION AND INTERACTION

An electric utility meter including a Hall Effect sensor configured to sense a magnetic field proximate the electric utility meter. The electric utility meter also includes a controller having an electronic processor, the controller configured to receive a signal indicative of a magnitude of the mag...

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Bibliographic Details
Main Authors McDougall, JR., Thomas Lee, Waters, Charles Andrew
Format Patent
LanguageEnglish
Published 14.09.2023
Subjects
ALARM SYSTEMS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
TESTING
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Summary:An electric utility meter including a Hall Effect sensor configured to sense a magnetic field proximate the electric utility meter. The electric utility meter also includes a controller having an electronic processor, the controller configured to receive a signal indicative of a magnitude of the magnetic field proximate the electric utility meter from the sensor, determine whether the magnitude of the magnetic field exceeds a first magnitude threshold and whether a threshold flag has been set, set the threshold flag when the threshold flag has not been set and the magnitude exceeds the first magnitude threshold, determine an amount of time for which the magnitude has exceeded the first magnitude threshold when the threshold flag has been set, and generate an alert indicative of a magnetic tamper event when the amount of time exceeds a time threshold.
Bibliography:Application Number: US202318300101