System of monitoring handrail for a passenger conveyer device, a passenger conveyer device and monitoring method thereof

US10046952B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Zhaoxia Hu · Zhejiang, CN
• Wilfrid Fuchs · Groß Gerungs, AT
• Alois Senger · Gresten, AT
• Hui Fang · Shanghai, CN
• Zhen Jia · Shanghai, CN
• Jianwei Zhao · Shanghai, CN
• Qiang Li · Beijing, CN
• Anna Su · Shanghai, CN
• Alan Matthew Finn · Amston, US

Key dates

• Filing date: Jul 28, 2017
• Grant date: Aug 14, 2018
• Expiry date: Jul 28, 2037

Classification

• Technology area (CPC —): General

Abstract

A moving handrail monitoring system includes a sensor configured to sense at least part of a moving handrail of the passenger conveying device to acquire a data frame; a processing device configured to analyze and process the data frame to monitor whether a tension degree of the moving handrail is in a normal state, wherein the processing device is configured to include: a target object recognition module configured to recognize, based on a sensed movement and/or position and/or color and/or shape, a moving handrail portion that serves as a target object from the data frame; an object feature extraction module configured to extract a tension degree feature of the moving handrail portion; and a judgment module configured to compare the extracted tension degree feature with a system preset interval, and judge whether a current tension degree of the moving handrail is normal.