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스마트폰의 소지위치 인지 기반의 정확한 보행수 검출 기법
허태호(Taeho Hur),염하늘(Haneul Yeom),이승룡(Sungyoung Lee) Korean Institute of Information Scientists and Eng 2017 정보과학회논문지 Vol.44 No.4
As the walking exercise is emphasized in personalized healthcare, numerous services demand walking information. Along with the propagation of smartphones nowadays, many step-counter applications have been released. But these applications are error-prone to abnormal movements such as simple shaking or vibrations; also, different step counts are shown when the phone is positioned in different locations of the body. In this paper, the proposed method accurately counts the steps regardless of the smartphone position by using an accelerometer and a proximity sensor. A threshold is set on each of the six positions to minimize the error of undetection and over-detection, and the cut-off section is set to eliminate any noise. The test results show that the six position type were successfully identified, and through a comparison experiment with the existing application, the proposed technique was verified as superior in terms of accuracy.