Optimum arousal level preservation system using biosignals.
Optimum arousal level preservation system using biosignals.
复制标题
使用生物信号的最佳唤醒水平保持系统。
DOI：
10.11183/jhe.40.119
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
K. Yokoyama
中科院分区：
文献类型：
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作者：
Issey Takahashi;Hayato Ohashi;K. Yokoyama
本研究的目的在于建立驾驶员驾驶时的最佳唤醒水平保存系统。开发该系统的重点是如何保持驾驶员的驾驶状态。大多数已经投入实际使用的自动驾驶系统，都是使用可听到的声音或在显示器上发出警告信息，敦促司机休息。然而，觉醒水平与自主调节的平衡密切相关；因此，我们需要刺激来保持驾驶员的生理状态。以往的一些研究报道了利用生物节律尤其是心跳节律进行刺激对人体的影响。考虑到这一点，我们制作了一个利用驾驶员的心跳节律进行反馈刺激的过程来实现需求。在本文中，我们从两个角度考察了刺激。一个是研究通过使驾驶员的心跳与振动刺激同步来控制驾驶员心跳节律的可能性。二是找出诱发呼吸性窦性心律失常的刺激，以调节副交感神经的调节。实验结果表明，1 [s]恒拍刺激具有诱导RSA的作用，采用心跳节奏的刺激具有控制驾驶员心率变异性的可能性，通过调整刺激节奏以适应驾驶员的心跳节奏，有可能提高其效率。
The purpose of this study is to develop a driver's optimum arousal level preservation system while driving. The important point of developing this system is how we keep a driver's adequate conditions on driving. Most of the systems, which have been already put to practical use, are using audible sound or warning messages on a display to urge driver to take a rest. However, arousal levels are strongly related to the balance of autonomic modulations; therefore we need the stimulation that preserves a driver's adequate condition physiologically. Some preceding studies reported that the stimulation using the biological rhythms especially heart beating rhythms are influential to human body. We gave a consideration to this fact and made a course of using driver's heartbeat rhythm for the feedback stimulation to realize the demand. In this paper, we examined the stimulation from two points of views. The one is to investigate the possibilities of controlling a driver's heartbeat rhythms by making synchronization between the driver's heartbeat and a vibratory stimulation. The other one is to find out the stimulation that induces RSA (Respiratory Sinus Arrhythmia) in order to adjust the parasympathetic modulations. The result of the experiment indicated that the 1 [s] constant beat stimulation has an effect of inducing RSA, and the stimulation using a rhythm of heartbeat has a possibility of controlling driver's heart rate variability, and its' efficiency might be possible to be improved by adjusting the rhythm of the stimulation to the driver's heartbeat rhythms.