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US 5,817,994 AGranted
Remote fail-safe control for elevator
AssigneeOtis Elevator Company
InventorsGerald B. Fried, Michael Mutal
Life of this patent
Estimating the term…
Abstract
A remote control arrangement (and method) for generating a car command remotely, includes a wireless transmitter and a wireless receiver which is coupled to an elevator controller. The receiver is detachably connected to wiring which leads to the controller. After finishing use of the transmitter/receiver arrangement, elevator service personnel detaches the receiver from the elevator wiring leading to the controller.
Claims9
A method for controlling an elevator car, comprising:
- connecting a wireless receiver to a car operating panel inside the car;
- transmitting a remote car command signal from outside the to the wireless receiver inside the car;
- sending the car command signal from the car operating panel to the car controller, controlling the elevator car responsive to the car command signal;
- and
- disconnecting the wireless receiver from the car controller.
2 more elements
An elevator control system, comprising:
- a controller including an electronic processor connected to a memory, a motor control routine stored within said memory, said motor control routine including instructions for detecting a control signal indicative of remote car command signal and for causing an elevator car to move in a direction associated with said signal;
- a car operating panel inside the car electrically connected to said controller so as to provide the said remote car command signal to said controller;
- a wireless transmitter outside the car for generating and transmitting said remote car command signal;
- and
- a wireless receiver inside the car for receiving said remote car command signal, said receiver being electronically detachably coupled to said car operating panel.
2 more elements
Dependencies are inferred from the claim text.