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Apparatus and method for sensing tampering of utility meter

Info

Publication number
CA2101115A1
CA2101115A1 CA 2101115 CA2101115A CA2101115A1 CA 2101115 A1 CA2101115 A1 CA 2101115A1 CA 2101115 CA2101115 CA 2101115 CA 2101115 A CA2101115 A CA 2101115A CA 2101115 A1 CA2101115 A1 CA 2101115A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
meter
power
sensing
tampering
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2101115
Other languages
French (fr)
Other versions
CA2101115C (en )
Inventor
Murray C. Carney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Itron Electricity Metering Inc
Original Assignee
Atos Origin IT Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00Arrangements for measuring time integral of electric power or current, e.g. by electricity meters
    • G01R22/06Arrangements for measuring time integral of electric power or current, e.g. by electricity meters by electronic methods
    • G01R22/061Details of electronic electricity meters
    • G01R22/066Arrangements for avoiding or indicating fraudulent use

Abstract

A device for detecting tampering of a utility meter includes sensors to detect a positional displacement of the meter and lose of power to the meter. On sensing a positional displacement of the meter, indicative of an attempt to remove the meter, a timer is activated to enable sensing a power loss to the meter. In response to detection of a power loss during the time period defined by the timer, an indication is stored in a nonvolatile memory of the tamper event. In response to loss of power with or without a detection of tampering, required parameters including utility consumption data are stored in nonvolatile memory. Remote access to and data retrieval from the nonvolatile memory and system are provided over telephone lines, power lines, or a radio frequency circuit.
CA 2101115 1992-07-24 1993-07-22 Apparatus and method for sensing tampering of utility meter Expired - Fee Related CA2101115C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US07/918,105 1992-07-24
US07918105 US5473322A (en) 1992-07-24 1992-07-24 Apparatus and method for sensing tampering with a utility meter

Publications (2)

Publication Number Publication Date
CA2101115A1 true true CA2101115A1 (en) 1994-01-25
CA2101115C CA2101115C (en) 2001-04-10

Family

ID=25439811

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2101115 Expired - Fee Related CA2101115C (en) 1992-07-24 1993-07-22 Apparatus and method for sensing tampering of utility meter

Country Status (2)

Country Link
US (1) US5473322A (en)
CA (1) CA2101115C (en)

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Also Published As

Publication number Publication date Type
CA2101115C (en) 2001-04-10 grant
US5473322A (en) 1995-12-05 grant

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