Abstract
Digital displays, as the replacement of traditional static signs, have gained increasing popularity for out-of-home advertising. Latest advancements in smartphone, wireless communication, and digital display technologies make it possible to design new interactive signage systems linking the digital content with the physical digital displays. Although recent studies have demonstrated the trend of cyber-physical interaction, they are not generally scalable for multiple users, and none of them support interaction with multiple displays in one location. Smart Signage, a “draggable” cyber-physical broadcast/multicast (B/M) media system is proposed in this paper. With a novel cyber-physical B/M protocol that synchronizes the content on the digital displays with the smartphones, it supports one-to-many interaction by allowing multiple users acquiring content from one display with a “dragging” hand gesture. With the embedded display orientation information in the same protocol, Smart Signage supports many-to-many interaction by allowing users obtaining content from the digital display they are pointing at with their smartphones. Users' quality of experience, which is characterized by the response time, is carefully studied in this paper to guarantee the performance of this cyber-physical interactive display system.
Highlights
Traditional static signs have been used as a convenient way to broadcast advertisements to a large number of targeted audiences who pass by the signages located at public/semipublic areas
Motivated by the above observations, Smart Signage, a ‘‘draggable’’ cyber-physical broadcast/multicast (B/M) media system is proposed in this paper
With a novel cyberphysical B/M protocol that synchronizes the content on the digital displays with the smartphones, it supports one-tomany interaction by allowing multiple users acquiring content from a display with ‘‘dragging’’ hand gesture
Summary
Traditional static signs have been used as a convenient way to broadcast advertisements to a large number of targeted audiences who pass by the signages located at public/semipublic areas. With the embedded display orientation information in the same protocol, Smart Signage supports many-to-many interaction by allowing users obtaining content from the digital display. They are pointing at with their smartphones. To the best of our knowledge, Smart Signage has advantages over other existing approaches in terms of the scalability to engage a large number of users, more flexible interaction range, more intuitive interaction, less visual compromise on the presentation of the advertisement, higher throughput, supporting interaction with mobile users, and supporting interaction with multiple displays For the rest of the fields in the data packet, Signage ID is a unique identification of the signage device; Showing ID is the identification of the content being displayed on the signage display; Sending ID is the identification of the content being carried in this data packet; Data Header includes the size of the content with the specified Sending ID, the total number of packets of the sending content and the sequence number of the data fragment of this content encapsulated in this packet; Data payload contains the data fragment limited to the size of 1024 bytes
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