Monitoring system of a passenger conveyor, a passenger conveyor, and a monitoring method thereof

US10059569B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Hui Fang · Shanghai, CN
• Zhen Jia · Shanghai, CN
• Yanzhi Chen · Shanghai, CN
• Alan Matthew Finn · Amston, US
• Arthur Hsu · South Glastonbury, US
• Jianwei Zhao · Shanghai, CN
• Zhaoxia Hu · Zhejiang, CN
• Qiang Li · Beijing, CN
• Anna Su · Shanghai, CN
• LongWen Wang · Shanghai, CN
• XuLei Guo · Shanghai, CN
• Alois Senger · Gresten, AT

Key dates

• Filing date: Jul 26, 2017
• Grant date: Aug 28, 2018
• Expiry date: Jul 26, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G06V40/103
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A monitoring system and a monitoring method for a passenger conveying device, and the passenger conveying device. The monitoring system comprises an imaging sensor and/or a depth sensing sensor for sensing a monitoring area of the passenger conveying device to acquire data frames; and a processing device for performing data processing on the data frames to monitor whether the monitoring area is abnormal, and configured to comprise: a background acquisition module for acquiring a background model based on data frames sensed when the monitoring area is in a normal state; a foreground detection module for comparing data frames sensed in real time with the background model to obtain a foreground object; a foreground feature extraction module for extracting a corresponding foreground object markup feature from the foreground object; and a state judgment module for judging whether the foreground object belongs to an abnormal population.