Elevator control system

Details Elevator control system Elevator control system

1977-01-21

1978-11-07

Schaefer, Robert K.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 118

Patent

active

041241029

ABSTRACT:
An elevator control system having a car processor, its associated car processor memory and car logic circuitry individually associated with each car to apply a first set of car control signals to the car associated control equipment to cause it to operate the car in a particular manner and having a group processor, its associated group memory and group logic circuitry common to each of the cars receiving hall call signals and selected first car control signals and in response thereto applying group control signals to selected car processor circuitry which operates in response thereto to apply second car control signals to its associated car control equipment to cause it to operate its associated car as a member of a supervised group. Whenever the group processor is to receive a first car control signal from or is to transmit a group control signal to the selected car processor circuitry, the group logic circuitry operates to cause the group processor and the selected car processor to suspend their sequence of operations and to cause the signal transfer therebetween.

REFERENCES:
patent: 4029175 (1977-06-01), Winkler

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