Elevator motion alert system
AssigneeOtis Elevator Company
InventorsMitsuru Kato, Hideki Miyazawa, Jiro Murata
Life of this patent
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Abstract
An elevator motion alert system for alerting a mechanic working inside a hoistway comprises a self-power-generating car beacon mounted on an elevator car, a self-power-generating counterweight beacon mounted on a counterweight, and a mobile device carried by the mechanic for receiving signals transmitted from the car beacon and the counterweight beacon and for providing an alert to the mechanic whenever the elevator car or the counterweight is approaching.
Claims16
An elevator motion alert system for alerting a mechanic working inside a hoistway, comprising:
- a self-power-generating car beacon mounted on an elevator car;
- a self-power-generating counterweight beacon mounted on a counterweight;
- and
- a mobile device carried by the mechanic for receiving signals transmitted from the car beacon and the counterweight beacon and for providing an alert to the mechanic whenever the elevator car or the counterweight is approaching.
A method for alerting a mechanic working inside a hoistway, comprising:
- mounting a self-power-generating car beacon on an elevator car and a self-power-generating counterweight beacon on a counterweight;
- receiving a signal transmitted from the car beacon and/or the counterweight beacon;
- and
- providing an alert to the mechanic whenever the received signal indicates that the elevator car or the counterweight is approaching.
Dependencies are inferred from the claim text.