Patent ID: 8866911

Claim:
A signage device, comprising: a display device, configured to display media content in a display mode and display diagnostic information in a diagnostic mode; and a signage controller in communication with the display device, the signage controller comprising a processor and a non-volatile memory storing computer executable codes, wherein the codes are configured, when executed at the processor, to receive an image frame, generate a demographic-map data structure, wherein the demographic-map data structure contains demographic information of persons detected in the image frame, store the demographic-map data structure in a data queue, send the demographic-map data structure stored in the data queue to a server system, receive the media content provided by the server system in response to the demographic-map data structure, display the media content on the display device in the display mode, switch from the display mode to the diagnostic mode in response to a diagnostic input command, and display the diagnostic information on the display device in the diagnostic mode, wherein the diagnostic information comprises system information and content operational and deployment information.