Intercar coordination in multicar hoistways
AssigneeOtis Elevator Company
InventorArthur Hsu
Life of this patent
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Abstract
A system includes a centralized controller configured to coordinate movement of a plurality of elevator cars in a multicar hoistway. The system also includes a plurality of car controllers configured to communicate with the centralized controller through a plurality of centralized control flows, establish two or more car-to-car control flows between at least two of the car controllers, and exchange an elevator car status between at least two of the car controllers. Movement of at least two of the elevator cars in the multicar hoistway is controlled based on the elevator car status and one or more commands received through at least one of the centralized control flows.
Claims20
A system comprising:
- a centralized controller configured to coordinate movement of a plurality of elevator cars in a multicar hoistway;
- and
- a plurality of car controllers configured to communicate with the centralized controller through a plurality of centralized control flows, establish two or more car-to-car control flows between at least two of the car controllers, and exchange an elevator car status between at least two of the car controllers, wherein movement of at least two of the elevator cars in the multicar hoistway is controlled based on the elevator car status and one or more commands received through at least one of the centralized control flows.
A method comprising
- establishing a plurality of centralized control flows between a centralized controller and a plurality of car controllers of a multicar hoistway;
- establishing two or more car-to-car control flows between at least two of the car controllers;
- exchanging an elevator car status between the at least two of the car controllers;
- and
- controlling movement of at least two elevator cars in the multicar hoistway based on the elevator car status and one or more commands received through at least one of the centralized control flows.
Dependencies are inferred from the claim text.