Experimental study on human vital sign measurement for automobile control system

本研究旨在利用生物讯号控制车辆在交通事故发生时，在驾驶员踩下刹车踏板前的反应。我们测量了志愿者的反应时间和下肢肌电图，并将中年一代与年轻男性一代进行了比较。实验结果表明，在释放加速器的瞬间，无论年龄大小，胫骨前肌的肌电图都有反应。我们还用数字滤波器测量了RR距离，并分析了呼吸性窦性心律失常（RSA）与年龄相关的影响。结果表明，RSA在青年和老年受试者之间存在显著差异。综上所述，根据身体位移的RSA振幅可以将年龄分为两组。

This study aim to control automotive using biosignals reacted before drivers step on the brake pedal in traffic accidents occurrence. We measured reaction time and electromyogram from lower extremity of volunteers, and compared the middle-aged generation with young male generation. Experimental results showed that electromyogram of tibialis anterior was reacted at the moment of releasing the accelerator, regardless of ageing. we also measured RR distance with a digital filter, and analyzed an influence of respiratory sinus arrhythmia (RSA) related to aging. As results, RSA was significantly different between young and elderly subjects. In conclusion, age can be divided into two groups by using amplitude of RSA from body displacement.