Remote monitoring system

Communications: electrical – Continuously variable indicating – With meter reading

Patent

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Details

34087019, G08C 1916

Patent

active

046600353

ABSTRACT:
A wheel is mounted on a rotating shaft and cooperates with at least one pair of inductors fixedly mounted in juxtaposition to the wheel. The wheel has at least one opening formed therein for generating a signal whenever the opening in the wheel is substantially aligned circumferentially with the pair of inductors. An electronic control circuit, responsive to the signal, actuates a remote meter for providing a remote indication of the shaft position. In a preferred embodiment, this improved sensing means is applied to the remote reading of a conventional household electric meter. Two pair of inductors are provided for cooperation with five equiangularly-spaced closed slots formed in the wheel, thereby providing ten signals (or counts) for each complete revolution of the wheel. The wheel is mounted on the shaft of the unit decade dial in the meter. The remote meter comprises a digital counter, responsive to the pulse generated by the electronic control circuit, for providing a remote digital read-out of the accumulated kilowatt hours on the meter.

REFERENCES:
patent: 3750122 (1973-07-01), Maeda
patent: 4296411 (1981-10-01), Romanelli et al.
patent: 4334222 (1982-06-01), Kelley et al.

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