脑-机接口(BCI)是不依赖于外周神经和肌肉组织等常规大脑输出通路的一种信息通道。作为一种特殊的人-机接口方式,其研究目的是在人脑和计算机或其它电子设备之间建立一种直接联系,使人们以脑电图(EEG)等形式直接控制计算机或外部设备。移动设备(如智能轮椅或护理机器人等)的控制是BCI技术的一个重要应用方向,本综述介绍了用于移动外设控制的BCI技术的研究现状,分析对比了关键技术,展望了以后的发展趋势和方向。
Brain computer interface(BCI) is an information channel independent of routine brain output ways such as peripheral nerves and muscle organization.As a special human-computer interface mode,it provides a direct communication pathway between the brain and external devices so as to exert control over those devices by ways other than primitive human communication.Controlling over mobile peripheral devices such as intelligent wheelchairs or nursing robots is a very important application of BCI technology in the future.This paper describes the newest progress of the above mentioned technology,analyzes and compares key techniques involved,and forecasts future development in this field.