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http://dx.doi.org/10.7842/kigas.2021.25.3.46

Real-Time Location Identification of Indoor Rescuees at Accident Sites and Location-Based Rescue Response  

Ko, Youngjoo (Dept. of Disaster and Safety, Myongji University)
Shin, Yongbeom (Dept. of Chemical Engineering, Myongji University)
Yoo, Sangwoo (Dept. of Disaster and Safety, Myongji University)
Shin, Dongil (Dept. of Disaster and Safety, Myongji University)
Publication Information
Journal of the Korean Institute of Gas / v.25, no.3, 2021 , pp. 46-52 More about this Journal
Abstract
In this study, the on-site location identification and response system was proposed by accurately checking the location information of rescue requesters in the buildings using the smartphone Wi-Fi AP. The location server was requested to measure the strength of the Wi-Fi AP at least 25 times at 8 different building location points. And the accuracy of the position and the error range were checked by analyzing the coordinate values of the received positions. In addition, the response time was measured by changing the conditions of location information in three groups to compare the response time for saving lives with and without location information. The minimum and maximum error values for the eight cases were found to be at least 4.137 m and up to 14.037 m, respectively, with an average error of 9.525 m. Compared to the base transceiver station (BTS) based position error value of 263m, the range could be reduced by up to 93%. When the location information was given, it took 10 minutes and 50 seconds to save lives; however, when there was no location information at all, rescue process took more than 45 minutes. From this research effort, it was analyzed that the acquisition of the location information of rescuees in the building using the smartphone Wi-Fi AP approach is effective in reducing the life-saving time for on-site responses.
Keywords
location based service; real-time fire responses; Wi-Fi AP;
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