Automated meter reader having time synchronization circuit
First Claim
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1. A device for coupling to a meter measuring product delivery, comprising:
- an interface module adapted to couple to the meter, the interface module providing a first signal indicative of the product delivery; and
a module having a transmitter and a controller receiving the first signal, the module creating and storing usage profile data as a function of the product delivery, wherein the controller has a clock adapted to be synchronized by a remotely provided synchronization signal.
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Abstract
An automated meter reading (AMR) device adapted to be synchronized by a signal provided by a remote device. The AMR device may be synchronized to a standardized clock, such as the automatic clock provided by NIST out of Boulder Colo. USA on station WWVB. Advantageously, this external clock re-synchronizes the internal clock of the AMR device to compensate for clock drift, such as caused by differences in crystal oscillation.
114 Citations
26 Claims
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1. A device for coupling to a meter measuring product delivery, comprising:
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an interface module adapted to couple to the meter, the interface module providing a first signal indicative of the product delivery; and
a module having a transmitter and a controller receiving the first signal, the module creating and storing usage profile data as a function of the product delivery, wherein the controller has a clock adapted to be synchronized by a remotely provided synchronization signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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14. A method of operating an automated meter reading (AMR) device, comprising the steps of:
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coupling the AMR device having a transmitter, a controller and a controller clock to a meter measuring product delivery; and
synchronizing the controller clock using a synchronization signal received from a physically remote device. - View Dependent Claims (13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification