An Information Display System with Information Scrapping User Interface Based on Digital Signage Terminals and Mobile Devices for Disaster Situations

摘要

In the East Japan Earthquake of 2011, a lot of people stranded at a station in a metropolitan city gathered and stayed in front of digital signage terminals displaying disaster information. The situation had the potential to cause a secondary disaster such as crowding accidents. To solve this problem, we propose an information display system with information scrapping user interface based on a digital signage terminal and mobile devices. Users can watch disaster information on the screen of their own mobile device by access to a digital signage terminal through Wi-Fi connection. The information scrapping user interface allows users to save target disaster information on the screen of their own mobile device and meta-information related with the target information by encircling the target information roughly. The main effect of this system is to shorten the time needed to access disaster information and save the desired information in a mobile device. We conduct a field experiment to evaluate the performance of the proposed system. The main effect of the system was confirmed by comparing with noting or taking photos of desired information among disaster information displayed by a digital signage terminal.