Drive belt montoring for passenger conveyors
AssigneeOtis Elevator Company
InventorsAlexander Turek, Thomas Illedits
Life of this patent
Estimating the term…
Abstract
A drive belt monitoring system for a passenger conveyor (10) is provided having a drive belt (30) having at least one cord (36) extending longitudinally within the drive belt (30). The monitoring system (50) includes: a first sensor (52) configured to measure the pretension of the drive belt (30); a second sensor (54) configured to determine a passenger load on the drive belt (30); a third sensor (56) configured to determine the resonance frequency of the drive belt (30); and a controller (60) configured to evaluate a condition of the drive belt (30) based on: the measured pretension of the drive belt (30), the determined passenger load of the drive belt (30), and the determined resonance frequency of the drive belt (30).
Claims16
A drive belt monitoring system (50) for a passenger conveyor (10) having a drive belt (30) having at least one cord (36) extending longitudinally within the drive belt (30),
- wherein the monitoring system (50) comprises:
- a first sensor (52) configured to measure the pretension of the drive belt (30);
- a second sensor (54) configured to determine a passenger load on the drive belt (30);
- a third sensor (56) configured to determine the resonance frequency of the drive belt (30);
- and
- a controller (60) configured to evaluate a condition of the drive belt (30) based on:
- the measured pretension of the drive belt (30), the determined passenger load of the drive belt (30), and the determined resonance frequency of the drive belt (30).
A method (100) for monitoring a drive belt (30) of a passenger conveyor (10), the method comprising:
- measuring a pretension of the drive belt (30);
- determining a passenger load on the drive belt (30);
- determining a resonance frequency of the drive belt (30);
- evaluating a condition of the drive belt (30) based on:
- the measured pretension of the drive belt (30), the determined passenger load, and the determined resonance frequency of the drive belt (30).
Dependencies are inferred from the claim text.