Elevator – industrial lift truck – or stationary lift for vehicle – Having computer control of elevator – Includes redundant circuitry
Patent
1997-12-17
1999-08-10
Nappi, Robert E.
Elevator, industrial lift truck, or stationary lift for vehicle
Having computer control of elevator
Includes redundant circuitry
187382, B66B 128
Patent
active
059362111
ABSTRACT:
The elevator control system includes a plurality of car controllers which control respective operations of a plurality of elevator cars, and at least one column of hall terminals. Each hall terminal in a column of hall terminals controls input/output operations relevant to present running display units for the elevator cars, a hall call button unit and arrival notice unit provided at a floor of the building associated with the hall call terminal. A communication relay system relays communication between the plurality of car controllers and the plurality of hall terminals. The communication relay system includes a plurality of slave communication units, each of which corresponds to a column of hall terminals and receives/transmits data from/to the corresponding column of hall terminals. A master communication unit receives/transmits data from/to the plurality of car controllers and the slave communication units.
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LG Industrial Systems Co., Ltd
Nappi Robert E.
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