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

US10479653B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Qiang Li · Beijing, CN
• Jianwei Zhao · Shanghai, CN
• Zhaoxia Hu · Zhejiang, CN
• LongWen Wang · Shanghai, CN
• Hui Fang · Shanghai, CN
• Zhen Jia · Shanghai, CN
• Anna Su · Shanghai, CN

Key dates

• Filing date: Jul 28, 2017
• Grant date: Nov 19, 2019
• Expiry date: Jul 28, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B20/40
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A monitoring system includes: an imaging sensor configured to sense a lighting device of the passenger conveyor to acquire image data; and a processing apparatus configured to process the image data, the processing apparatus being configured to include: a background acquisition module configured to acquire a background model based on sensed image data; a foreground detection module configured to compare image data sensed in real time with the background model to obtain a foreground object; and a working condition judgment module configured to perform data processing at least based on the foreground object to judge whether the lighting device is in a normal state. Then, a failure or an abnormal lighting state of the lighting device can be timely diagnosed so that maintenance is performed.