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A Flexible Bio-Signal Based HMI for Hands-Free Control of an Electric Powered Wheelchair

机译:基于柔性生物信号的HMI,用于电动轮椅的免提控制

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摘要

This paper presents a bio-signal based human machine interface (HMI) for hands-free control of an electric powered wheelchair. In this novel HMI, an Emotive EPOC sensor is deployed to detect facial expressions and head movements of users, which are then recognized and converted to four uni-modal control modes and two bi-modal control modes to operate the wheelchair. Nine facial expressions and up-down head movements have been defined and tested, so that users can select some ofthesefacial expressions and head movements to form the control commands. The proposed HMI is user-friendly and allows users to select one of six available control modes according to their comfort. Experiments are conducted to show the feasibility and performance of the proposed HMI.
机译:本文提出了一种基于生物信号的人机界面(HMI),用于电动轮椅的免提控制。在这种新颖的HMI中,部署了Emotive EPOC传感器来检测用户的面部表情和头部运动,然后将其识别并转换为四种单模式控制模式和两种双模式控制模式以操作轮椅。已经定义和测试了九种面部表情和上下头部动作,因此用户可以选择其中的一些面部表情和头部动作来形成控制命令。提议的HMI是用户友好的,并允许用户根据自己的舒适度选择六个可用的控制模式之一。实验表明所提出的人机界面的可行性和性能。

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