Multifunction proximity digital billboard

摘要

A multifunction proximity digital billboard, including a set of display panels each positioned and formed to provide an information display; a resource bay that includes a set of resources for driving a content of the display panels and for communication to and from the digital billboard; a removable module for providing a function that is adapted to a particular deployment of the digital billboard, a set of sensors to gather environmental data and a charging module for charging external mobile devices.