System for collecting data from meters placed at remote places

Details System for collecting data from meters placed at remote places System for collecting data from meters placed at remote places

1976-11-22

1978-02-21

Yusko, Donald J.

Communications: electrical

Digital comparator systems

340188R, 340177R, G08C 1508

Patent

active

040756076

ABSTRACT:
A data collection system wherein a central or data collection station is interconnected through data transmission lines with a plurality of meters or terminal stations at remote places and prior to the data reading operation a high-level voltage is applied from the central station to charge the stray capacitance between the data transmission lines and ground and thereafter a predetermined voltage is applied for reading data.

REFERENCES:
patent: 3742342 (1973-06-01), Schick
patent: 3876997 (1975-04-01), Farley et al.
patent: 3961317 (1976-06-01), DeBrem et al.

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