System for remote reading of indicating devices such as meters a

Details System for remote reading of indicating devices such as meters a System for remote reading of indicating devices such as meters a

1973-05-03

1976-06-01

Habecker, Thomas B.

Communications: electrical

Digital comparator systems

340183, 340204, 340177R, 340409, G08C 1506

Patent

active

039613178

ABSTRACT:
A system for remote reading of indicating devices such as meters and the like, which devices are comprised of a plurality of switch contacts and associated resistance elements. The reading systems senses the closing of one or more of a group of device contacts and does so using only a single pair of sensing lines for each group. Additionally, means is provided for sequencially selecting pairs of lines from a plurality of said pairs of lines, each pair associated with a single group among several assemblies of many groups. The selected pair of sensing lines is routed to an analog-to-digital converter, the output of which is sent to a computing device for processing the data received on the pair of sensing lines.

REFERENCES:
patent: 3039687 (1962-06-01), Chope
patent: 3047837 (1962-07-01), Fieser
patent: 3145374 (1964-08-01), Benner
patent: 3219991 (1965-11-01), Fredtas
patent: 3495074 (1970-02-01), Jacques
patent: 3697970 (1972-10-01), Jaxheimer

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