Communications: electrical – Continuously variable indicating – With meter reading
Patent
1990-08-21
1991-04-16
Weldon, Ulysses
Communications: electrical
Continuously variable indicating
With meter reading
34082507, 455603, G05B 2302
Patent
active
050086626
ABSTRACT:
A remote supervisory and controlling system for remotely supervising and controlling loads in time-divisional multiplex transmission of control unit and monitor data between a central control and terminal units each connected to the central control unit through a two-wire line. Supervision and control of the overall system can be carried out from a plurality of locations so that failure of a central or host computer will not render the overall system inoperative.
REFERENCES:
patent: 3337992 (1967-08-01), Tolson
patent: 4161651 (1979-07-01), Sano et al.
patent: 4259746 (1981-03-01), Sandstedt
patent: 4418333 (1983-11-01), Schwarzbach et al.
patent: 4613848 (1986-09-01), Watkins
patent: 4740787 (1988-04-01), Kimura
patent: 4780872 (1988-10-01), Masuda et al.
patent: 4807052 (1989-02-01), Amano
Ito Yoshiharu
Kuroda Mitsunobu
Masuda Toshiyuki
Tokizane Toshiaki
Yamada Osamu
Matsushita Electric & Works Ltd.
Weldon Ulysses
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