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In addition, the image media mainly dealt with in this study include personal mobile terminals, TVs, digital signage, urban electronic signs and bus information systems.
First, looking at the form of multi-media contents suitable for a personal mobile terminal, there are text information and links that can be used in multiple languages through emergency disaster messages. Of course, there is still a limit to the number of texts that can be included in emergency messages, but standardization to overcome the limitations of emergency messages applied to 5G is being promoted in Korea through TTA. Through this, by providing web-based multimedia content, it is possible to check response tips and shelter information, including a map of the disaster area.
In the case of TV, only text information in the form of closed captioning has been provided until now, but as UHD gradually spreads, disaster information contents suitable for this needs to be prepared. For example, through ATSC 3.0 and AEAT, which are standard UHD standards, it is possible to utilize not only the broadcasting network but also the communication network, and through the provision of links, disaster information in a different form than before can be accessed. Furthermore, disaster information contents applying IBB and HBB, which is more scalable than AEAT, will be possible.
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IEEE/ICACT20210233 Slide.13
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