Electricity meter tampering detection
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United States of America Patent
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Sep 2, 2014
Grant Date -
Apr 19, 2012
app pub date -
Jul 8, 2010
filing date -
Jul 8, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Tampering with an electricity network is detected from an electricity meter by transmitting a probe signal over at least part of the electricity network (12) from a signal source (106a) in the electricity meter (10). A reflected signal produced by reflection of the probe signal in the electricity network (12) is received back. The reflected signal is compared with a reference signal. An alarm signal is generated when said comparing detects a deviation between the reflection signal and the reference signal, in particular when reflections from a new position on the electricity network near the electricity meter are detected.
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