Performance evaluation of information delivery system in a major disaster for deaf people based on embedded web system

Ito, Atsushi; Watanabe, Yu; Yabe, Toshikazu; Fujii, Masahiro; Tsunoda, Koichi; Kakuda, Yoshiaki; Hiramatsu, Yuko

doi:10.1109/isads.2013.6513415

Cited by 5 publications

(2 citation statements)

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“…However, the situation for hearing-impaired people on disasters has been worse. We have studied the information system for 14 years [20,21,9,10,8,4,7,5] and have to continue our project to support hearing-impaired people under disasters.…”

Section: Related Work On Disaster Information Systemmentioning

confidence: 99%

“…• Requirement1: Accurate information rapidly for deaf people One solution to satisfy the requirements were designing LED displays with a battery connected by the ad-hoc network, as shown in Figure 1 and testing at Miyagi-Prefectural School for the Deaf since 2012. One of the LED displays receive information from cloud (by SMS or GCM (Google Cloud Messaging)) or a smartphone of a teacher and delivers to other displays [10] by using an ad-hoc network. Each LED display has a battery, and we calculated the capacity of the battery for a one-day operation.…”

Section: Introductionmentioning

confidence: 99%

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A Study on Ad-hoc Network with BLE Advertisement

Ito

Takahashi

2020

IJNC

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In Japan, there is a high chance of getting damage from earthquakes, tsunamis, and typhoons, so we need to get information about where to evacuate quickly. However, in such situations, communication infrastructures such as base stations of 3G, LTE are broken. Even if they are available, many people try to access the Internet or make a phone call, network congestion occurs. As a result, their ways of communication are limited. Under such a situation, weak people at a disaster, who called CHECT (Children, Handicapped, Elderly people, Chronically ill, Tourists), usually receive a disadvantage. We have been developed a support system for hearingimpaired people in a disaster since 2007 because they are hard to get information because a lot of emergency information is delivered by sound. For them, information by vision is more suitable. Now, we are testing our disaster information delivery system in Miyagi-Prefectural School for the Deaf. The system is constructed by several LED displays and connected by the ad-hoc network. To install our system, we are now trying to use Bluetooth Low Energy (BLE) Advertisement. In this paper, we will explain the outline of our system and the result of the experiment of the performance of the ad-hoc network with BLE Advertisement. The performance includes the reachability of transmitted packets, the routability of the routing protocol we developed. As a result, we can conclude that BLE Advertisement based ad-hoc network is feasible to construct a disaster information system for hearing-impaired people.

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