Development of a wearable vibration device for preventing dozing driving

Abstract

Dozing driving is the main cause of traffic accidents. In addition, from previous studies, sensory vibration stimulation corresponding to brain waves (β waves) is effective for arousal. In this study, we developed a wearable vibration device to prevent drowsiness while driving and evaluated the scale of drowsiness. In addition, it is effective to give vibration when the arousal level drops. Therefore, in order to detect signs of sleep, we also examined changes in arousal levels .The subject were healthy person of Ichinoseki National College of Technology. The experimental equipment is a wearable heart rate sensor (Union Tool）, a shaking table (IDEX Co.), Brain Activity Monitor(Hb133)(Astem) and a haptic reactor Hybrid Tough Type (Alps Alpine). The subjects were vibrated with a vibration device, and drowsiness was measured by subjective evaluation with KSS and evaluation of autonomic nerves using a heart rate sensor. The autonomic nerve measurement showed a tendency for the LF / HF value to increase. On the other hand, in the subjective evaluation, the awakening effect by vibration was not obtained. Also, no signs of sleep could be detected from the oxyhemoglobin concentration and heart rate. It is necessary to change the experiment method and experiment again.