Invention Grant
- Patent Title: Detection of deteriorated electrical connections in a meter using temperature sensing and time-variable thresholds
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Application No.: US15719095Application Date: 2017-09-28
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Publication No.: US10393791B2Publication Date: 2019-08-27
- Inventor: Mark David Minich , Steven John Schamber
- Applicant: Landis+Gyr LLC
- Applicant Address: US IN Lafayette
- Assignee: Landis+Gyr LLC
- Current Assignee: Landis+Gyr LLC
- Current Assignee Address: US IN Lafayette
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: G01R31/04
- IPC: G01R31/04 ; G01D4/00

Abstract:
A utility meter includes a meter housing that supports at least one current coil, a temperature sensor, and a processing circuit coupled to both. The current coil can be coupled to receive heat energy from a meter socket. The temperature sensor disposed generates a sensor signal based on a temperature within the meter housing. The processing circuit obtains the sensor signal and generates meter temperature information based at least in part thereon. The processing circuit also obtains a first predetermined threshold based on at least one of time of day information and date information. The processing circuit also determines whether an abnormal condition exists by comparing the meter temperature information to a value based on the first predetermined threshold, and generates an output signal to a memory, display or communication circuit responsive to determining that the abnormal condition exists.
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