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US 12,630,391 B2Granted
Elevator positioning system with cascading reflector arrangement
AssigneeHoneywell International Inc.
InventorsEn Yi Chen, Yang Lu, Wu Chen
Life of this patent
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AssigneeHoneywell International Inc.
InventorsEn Yi Chen, Yang Lu, Wu Chen
Estimating the term…
Various embodiments are directed to determining an elevator car position within an elevator shaft using radar-based distance measurements and a plurality of radar reflectors positioned along the elevator shaft. In one aspect, an example method is provided. The method includes associating a height segment of the elevator shaft with each of the plurality of radar reflectors. The method further includes selecting a target reflector from the plurality of radar reflectors based at least in part on an initial height of the elevator car being within a height segment associated with the target reflector. The method further includes determining an inferred position of the elevator car within the elevator shaft based at least in part on determining a radar-based distance measurement to the target reflector. The radar reflectors may be positioned such that at least one radar reflector is optimally detectable by a dynamically-positioned radar transceiver of the elevator car.
A method for determining a position of an elevator car within an elevator shaft by an elevator positioning system, the elevator positioning system comprising a plurality of radar reflectors, a radar transceiver, and a controller communicably connected to the radar transceiver and configured to perform the method, the method comprising:
An elevator positioning system for determining a position of an elevator car within an elevator shaft, the elevator positioning system comprising:
A computer program product for determining a position of an elevator car within an elevator shaft by an elevator positioning system, the elevator positioning system comprising a plurality of radar reflectors, a radar transceiver, and a controller communicably connected to the radar transceiver, the computer program product comprising at least one non-transitory computer-readable storage medium having computer-executable program code portions stored therein, the computer-executable program code portions comprising program code instructions configured to cause the controller to:
Dependencies are inferred from the claim text.