Patent ID: 8305224

Claim:
An in-train display-device management system incorporated in a train constituted by a plurality of vehicles and connected to a plurality of display devices arranged in each vehicle of the train by a transmission path, the in-train display-device management system comprising: a monitoring unit that detects a driving status of the display devices to generate monitoring information; an analyzer that generates, as analysis information of the driving status of the display devices, as a result of determination whether the display devices maintain image display quality based on the monitoring information of the display devices; a storage unit that stores the monitoring information and the analysis information; a status display panel that collectively displays the driving status of the display devices per vehicle unit based on the analysis information; and a display controller that controls display on the status display panel, and displays a predetermined alarm indicating that an end of operating life is approaching on the status display panel, as the driving status of the display devices, based on the analysis information of the display devices before the end of operating life, wherein the monitoring information is luminance information at a time of displaying an image on the display devices, and the analyzer analyzes the driving status of the display devices based on the luminance information, and when luminance at a time of displaying an image on the display devices is in a range between a mean value of luminance of entirety of the display devices collectively managed and a half-value of standard luminance set in advance at a time of displaying an image, the display controller causes the predetermined alarm to be displayed on the status display panel.