Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-03-07
1996-02-20
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34087020, 34087030, 340870280, G08L 1700
Patent
active
054932874
ABSTRACT:
A remote meter reading system (10) includes a group of meter interface units in which each meter interface unit (12) is operable in an inactive state, and in which each meter interface unit (12) is periodically activated to monitor a communication channel for channel activity. The meter interface unit (12) is responsive to communication signals from a meter reading device (15). To remotely read the group of meters, the meter reading device (15) initiates communication with a target meter interface unit (12) selected from among the group of meter interface units. Next, the meter reading device (15) receives a message from the target meter interface unit (12), which contains a group identifier for the target meter interface unit (12). The meter reading device (15) then transmits a message on the communication channel which includes the group identifier received from the target meter interface unit (12).
REFERENCES:
patent: 4614945 (1986-09-01), Brunius et al.
patent: 4713808 (1987-12-01), Gaskill et al.
patent: 4799059 (1989-01-01), Grindahl et al.
patent: 5194860 (1993-03-01), Jones et al.
patent: 5251214 (1993-10-01), Mertens et al.
patent: 5301122 (1994-04-01), Halpern
Fuller Andrew S.
Horabik Michael
Massaroni Kenneth M.
Motorola Inc.
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