Automatic meter reading system and method using telephone line

Details Automatic meter reading system and method using telephone line Automatic meter reading system and method using telephone line

2006-09-05

2006-09-05

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Continuously variable indicating

With meter reading

C376S106000, C376S106000, C376S249000

Reexamination Certificate

active

07102533

ABSTRACT:
An automatic meter reading system includes meter-reading devices attached to respective utility meters and a remote control center collecting measured commodity utilization from the meter-reading devices through a telephone network when a meter reading request signal is received from the remote control center. The meter-reading device includes a remote control center interface, a call control processing unit for extracting a call control signal from the meter reading request signal, a main control unit (MCU) for generating a CID control signal based on the call control signal, a caller ID (CID) decoder for decoding the meter reading request signal and extracting CID from a meter reading request signal based on the CID control signal from the MCU, a meter reader connected to the utility meter for reading commodity utilization measured by the utility meter under control of the MCU, and a memory for temporally storing the measured commodity utilization.

REFERENCES:
patent: 5311581 (1994-05-01), Merriam et al.
patent: 5677947 (1997-10-01), Oliver
patent: 6208266 (2001-03-01), Lyons et al.
patent: 6646731 (2003-11-01), Wolleswinkel
patent: 6900737 (2005-05-01), Ardalan et al.
patent: 2002/0067284 (2002-06-01), Chamberlain et al.

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