专注度触发假肢运动的新方法

The Research about the Triggering of Artificial Limb Movement by Attention

目的:由于脑电信号的复杂性,假肢控制系统对其难以识别,本文提出用人体精神专注度触发假肢运动的脑电控制新方法。方法:首先通过脑电信号采集装置从人脑中检测到脑电信号,解析出人体精神专注度数值;然后通过实验测定触发假肢运动和停止的阈值,受试者通过调节注意力,当专注程度达到运动或停止的阈值时,即可触发或停止假肢运动;最后,借助Lab VIEW软件对专注度触发假肢运动和停止的过程进行模拟。结果:能够实现通过人体精神专注度来触发和停止假肢运动的目的。结论:以人体精神专注度作为假肢运动的触发源,可以为脑电控制假肢这一研究提供一种新的思路。

Objective： Aiming at the problem that the brain electrical signal is not easy to be identified in the prosthetic control pattern,a new distinguishing method for the brain electrical signal, which is based on the human mental concentration, is proposed to realize the control of the artificial limb. Methods： First, the EEG signal is got from the brain electrical signal acquisition device, and the mental concentration data are resolved from EEG signal. Then the mental concentration＇s starting and stopping thresholds of the artificial limb movement are set by experiments. When these values are achieved by adjusting the human mental concentration, the artificial limbs work.Finally, the processing above is simulated with Lab VIEW. Result： Achieve the purpose of triggering the movement of artificial limb through the human mental concentration. Conclusion： Choosing the human mental concentration as the trigger source of artificial limb movement can provide a new way for the research of brain electrical signal controlling artificial limb.