设计了稳态视觉诱发电位(SSVEP)空闲状态检测的特征提取方法,建立了基于SSVEP的异步脑机接口二级分类器结构,开发了基于TI CC2430芯片的无线传感器网络模块,实现了机器人控制命令的远程传送,使该仿人机器人系统具有脑电控制、语音交互、游戏手柄交互、机器视觉与避障等功能.通过SSVEP空闲状态检测实验验证了脑机接口系统异步控制的有效性.
A feature extraction method is proposed for steady-state visual evoked potential(SSVEP) idle state detection. By designing a two-level classifier structure,SSVEP-based asynchronous brain-computer interface(BCI) is established. A wireless sensor network(WSN) hardware node embedded with TI CC2430 is implemented for remote transmission of robot control command.The developed humanoid robot control system has multiple control modes,such as mind control, voice interaction,joystick input,machine vision,and obstacle avoidance.The effectiveness of brain-computer interface asynchronous control is validated through experiments on SSVEP idle-state detection.