Invention Grant
- Patent Title: Electronic tamper detection in a utility meter using magnetics
- Patent Title (中): 在使用磁性的电表中进行电子篡改检测
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Application No.: US13225154Application Date: 2011-09-02
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Publication No.: US09097746B2Publication Date: 2015-08-04
- Inventor: Anibal Diego Ramirez
- Applicant: Anibal Diego Ramirez
- Applicant Address: US IN Lafayette
- Assignee: Landis+Gyr, Inc.
- Current Assignee: Landis+Gyr, Inc.
- Current Assignee Address: US IN Lafayette
- Agency: Maginot, Moore & Beck LLP
- Main IPC: G01R11/24
- IPC: G01R11/24 ; G01R22/06

Abstract:
An arrangement for use in a utility meter includes a switch, a processing circuit, and a magnetic element. The switch is supported on a first meter structure. The switch has at least a first and second state. The switch is configured to transition from a first state to a second state responsive to a detected magnetic field of a first polarity, and to transition from a second state to a first state responsive to a detected magnetic field of a second polarity. The processing circuit is operably coupled to determine whether the switch is in the first state or the second state. The magnetic element is supported on a second meter structure configured to be physically connected to the first meter structure, the magnetic element positioned such that removal of the second meter structure from the first meter structure causes the magnetic element to expose the switch to a magnetic field of the first polarity.
Public/Granted literature
- US20120074927A1 Electronic Tamper Detection in a Utility Meter Using Magnetics Public/Granted day:2012-03-29
Information query