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http://dx.doi.org/10.15683/kosdi.2016.9.30.235

A Study on Disaster Prevention Improved Performance by Utilizing Directional Speakers  

Kang, Shinwook (AIRTECHMEDIA)
Jeon, Gaehyun (AIRTECHMEDIA)
Kim, Teahwan (AIRTECHMEDIA)
Publication Information
Journal of the Society of Disaster Information / v.12, no.3, 2016 , pp. 235-241 More about this Journal
Abstract
Recently our country was entering a high-tech society with social and economic development. However, the individual's ability to respond to disasters is lowered by the increase in complexity society. Accurate situation assessment and disaster response by a margin of personal information that can identify when a disaster has been difficult. Until now, by leveraging Standard speaker was the emergency alert broadcast. However, it was difficult to have regular speakers reverberation, a distinct attenuation of sound by listening to the sound, etc. due to the reflection of sound. By using a directional speaker that is characteristic of the sound attenuation of sound is straight to solve this problem and obtain feedback on measures that can effectively provide the oocytes to a valid information on a disaster situation and the evacuation.
Keywords
social disaster; directional speker; evacuee guidance; emergency; broadcasting system; ultrasonics wave;
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  • Reference
1 上田 颯都, 金森 凱, 鈴木 亮太朗, (2015). "發振器の配列による指向性スピーカーの性能", 兵庫縣立神戸高等學校總合理學科SSH課題研究發表會
2 Oki Sigehumi, (2008). "Effect of Evacuation Announcement by Using Parametric Loudspeakers" , HOSEI University, Master's thesis.
3 Baek, Eun-Sun, (2011). "A study on the Fire Evacuation Guidance Model Using Haas Effect", Chonnam National University, Doctor's thesis.
4 Global Homeland Security&Public Safety Market 2014-2022, Homeland Security Research
5 Ministry of Public Safety and Security statistics annual report 2012.