Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means – Monitors operational parameter
Patent
1997-02-03
1999-03-09
Nappi, Robert E.
Elevator, industrial lift truck, or stationary lift for vehicle
With monitoring, signalling, and indicating means
Monitors operational parameter
187282, B66B 134
Patent
active
058804170
ABSTRACT:
An improved synchronous position correction apparatus for an elevator which is capable of safely escaping passengers from a car when a synchronous position error occurs in the elevator by moving the car to a neighboring floor and correcting the synchronous position error by using a floor height value of a neighboring floor, for thus normally operating the elevator system. The apparatus includes a car controller for controlling the operation thereof, a floor number switch disposed in each floor for storing a floor number of a corresponding floor, a floor controller for receiving and storing a floor number from the floor number switch, outputting the floor number when a synchronous position error occurs, and checking an opening/closing state of an elevator door, and a main controller for communicating with the car controller and the floor controller, controlling the operation of the elevator, receiving the synchronous position error from the floor controller, moving the car to a neighboring floor, receiving the floor number of the neighboring floor from the floor controller, and correcting the synchronous position a floor height value of the floor.
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LG Industrial Systems Co. Ltd.
Nappi Robert E.
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