Methods and systems for displaying media data, host computers, devices, and media

A system for displaying media data on electronic signage, comprising a host computer, a wireless access device, and one or more electronic signage, wherein

• the host computer comprises:
• a first processor;
• a first communication module, communicatively coupled with the first processor and configured to communicate with the wireless access device;
• and
• a first memory storing instructions, which, when executed by the first processor, cause the first processor to:
• send media data carrying a signage identifier for uniquely identifying the electronic signage to the wireless access device, and
• the wireless access device comprises:
• a second processor;
• a second communication module, communicatively coupled with the second processor and configured to communicate with the electronic signage;
• a third communication module, communicatively coupled with the second processor and configured to communicate with the host computer;
• and
• a second memory storing instructions, which, when executed by the second processor, cause the second processor to:
• receive, from the host computer, the media data carrying the signage identifier for uniquely identifying the electronic signage;
• and send the media data to the electronic signage to which the signage identifier belongs, to trigger the electronic signage to display the media data.