Passenger information system equipment centralized monitoring and remote operation and maintenance method and device

The invention provides a passenger information system equipment centralized monitoring and remote operation and maintenance method and device. The method comprises the following steps: sampling equipment running state information of equipment in a passenger information system to obtain an equipment running state sampling value; judging whether the sampling value is in a preset normal operation interval or not to obtain a state judgment result; acquiring a planned playing picture of the equipment, acquiring a real-time playing picture, and comparing the histogram of the planned playing picture with the histogram of the real-time playing picture to obtain a picture comparison result; if the state judgment result or the picture comparison result is abnormal, generating a fault reason and a corresponding fault operation and maintenance scheme by using an operation and maintenance decision tree model; sending the fault reason and the corresponding fault operation and maintenance scheme to a management end, so that