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

A monitoring method for a passenger conveyor, comprising:

• an image acquisition step:
• sensing a lighting device of the passenger conveyor to acquire image data;
• a background acquisition step:
• acquiring a background model based on image data sensed when the lighting device is in a normal state or in an abnormal state;
• a foreground detection step:
• comparing image data sensed in real time with the background model to obtain a foreground object;
• and
• a working condition judgment step:
• performing data processing at least based on the foreground object to judge whether the lighting device is in a normal state.

A monitoring system of a passenger conveyor, comprising:

• an imaging sensor configured to sense a lighting device of the passenger conveyor to acquire image data;
• a microcontroller configured to process the image data to monitor whether the lighting device is in a normal state, the microcontroller is operable to:
• acquiring a background model, using a background acquisition module, based on image data sensed when the lighting device is in a normal state or in an abnormal state;
• compare the image data sensed in real time with the background model, via a foreground detection module, to obtain a foreground object;
• and
• perform data processing at least based on the foreground object, using a working condition judgment module, to judge whether the lighting device is in a normal state.