公开(公告)号：US20220106158A1

公开(公告)日：2022-04-07

申请号：US17400838

申请日：2021-08-12

Applicant: OTIS ELEVATOR COMPANY

Inventor： Ankit Anand Gupta ,  Frank Higgins ,  Sanket Mhadgut

IPC: B66B1/34 ,  G01R33/02

Abstract: A method of monitoring a conveyance apparatus within a conveyance system including: detecting, using a magnetometer, a first magnetic signature within the conveyance system at a first time, the magnetometer being attached to the conveyance apparatus; comparing the first magnetic signature detected to a plurality of magnetic signatures contained in a magnetic signature lookup table, wherein each of the plurality of magnetic signatures in the magnetic signature lookup table are assigned to a specific location along a conveyance path of the conveyance system; and determining a location of the conveyance apparatus at the first time by matching the first magnetic signature to one of the plurality of magnetic signatures.