驾驶员脑电特征与手臂操纵驾驶行为研究

Research on driver EEG characteristic and arm steering behavior

为了进一步研究脑电信号与驾驶行为的关系,通过脑电采集设备与惯性运动捕捉系统同时捕捉驾驶员脑电信号数据与操作手臂运动参数。分析驾驶员手臂驾驶方向盘的过程中,脑电信号的变化与操作手臂运动方向之间的关系。利用共同空间模式(CSP)与小波包分解(WPD)的方式,提取左右运动相关的C3和C4导联特征,结合手臂运动关节的加速度进行相关性分析。实验结果表明:在实际的驾驶行为中,左右转向过程,C3、C4导联出现持续的ERD/ERS现象,为脑机接口控制量化标准提供基础。

In order to further study the relationship between EEG signals and driving behavior, the EEG signal data and the arm motion parameters of the driver are collected simultaneously using the Neuroscan cap and Inertial Measurement System. The relationship between the EEG signals and the movement direction of the driving arms is analyzed in the process that the driver is holding the steering wheel to conduct driving operation. The CSP and WPD are used to extract the features of the electrodes C3 and C4 related with the motion accel- eration of the driving hands ; and the correlation analysis is performed combining the motion acceleration of the arm movement joints. The experiment result demonstrates that in the real driving behavior, continuous ERD/ERS appear in leads C3 and C4 in the left/right turning process, which provides a foundation for the quantitative standard of BCI control.