Boots – shoes – and leggings
Patent
1982-08-03
1989-03-28
Lastova, John R.
Boots, shoes, and leggings
364138, 235375, G09G 302
Patent
active
048169889
ABSTRACT:
A master station in a supervisory control system comprises a console (3) having a card reader (5) and control switches (9, 11, 13), a card (7) being inserted into the card reader. Information specifying a substation (271-27n) and a device (D11-Dnm) included in the substation is recorded in machine and human readable form on the card. A signal from the card reader is applied to an output control (23) through an input control (17), the output control reading the contents of a status memory (21) and a pattern memory (25) associated with the substation and device specified by the card, and providing a pattern display on a video display (1) based on the read information. The display of the selected device is flashed on the video display. An operator's actuation of the control switch causes the input control to send the control command to a line interface (19), and the line interface transmits the control command to a substation containing the selected device.
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patent: 3555516 (1971-01-01), Proctor
patent: 3757037 (1973-09-01), Bialek
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patent: 4303973 (1981-12-01), Williamson, Jr. et al.
patent: 4396977 (1983-08-01), Slater et al.
patent: 4451895 (1984-05-01), Sliwkowski
"SCADA: Where are we? Where are we going?", John T. Tyner, Transmission & Distribution, pp. 23-56, May 1980.
Lastova John R.
Mitsubishi Denki & Kabushiki Kaisha
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