US 12,168,592 B2
Determining elevator car location using radio frequency identification
Sandeep Sudi, Farmington, CT (US); and Vinay Shimoga Baburao, Karnataka (IN)
Assigned to OTIS ELEVATOR COMPANY, Farmington, CT (US)
Filed by Otis Elevator Company, Farmington, CT (US)
Filed on Aug. 19, 2019, as Appl. No. 16/543,675.
Claims priority of application No. 201811032615 (IN), filed on Aug. 30, 2018.
Prior Publication US 2020/0071126 A1, Mar. 5, 2020
Int. Cl. B66B 5/00 (2006.01); B66B 1/34 (2006.01)
CPC B66B 5/0025 (2013.01) [B66B 1/3453 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for determining elevator car locations, the system comprising:
a controller coupled to a memory;
a sensor affixed to a moving component of an elevator car operating in a hoistway of a building, wherein the sensor is operated by the controller; and
a tag affixed to at least one landing of a plurality of landings in the hoistway of the building;
wherein the controller is configured to:
operate the sensor to obtain tag data from the tag within a range of the sensor;
analyze the tag data to determine a position of the elevator car in the hoistway of the building;
based at least on a determination of the position of the elevator car in the hoistway, operate an elevator sensor to collect sensor data associated with the elevator car; and
associate the sensor data with the position of the elevator car.