Soon-O. Kwon

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A method of vertical and horizontal force estimation for soft physical human–robot interaction by using an air-filledmaterial and a camera was proposed in this study. First, we considered hypotheses for vertical and horizontal force applied to the air-filled material. Second, the prototype of air-filled material and vision-based force-sensing device (AVFSD)(More)
Drowsy driving can lead to accidents. Therefore, finding methods by which drowsy driving can be prevented is essential. This paper proposes a method of detecting drowsy driving that utilizes the Low Frequency (LF), High Frequency (HF), and LF/HF values of photoplethysmography (PPG) signals measured on fingers and earlobes. In experiments conducted, of 20(More)
The purpose of this study is to develop a seat posture stabilizing function for an electric wheelchair without actuators. The non-actuator seat posture stabilizing function uses instruments that can stabilize the posture of a passenger seat, including controlled pendulum mechanism, brake, and posture angle detector. When applying the novel seat posture(More)
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