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Assistive technology design and preliminary testing of a robot platform based on movement intention using low-cost brain computer interface

机译:使用低成本脑计算机接口的基于运动意图的机器人平台辅助技术设计和初步测试

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The process through which children learn about the world and develop perceptual, cognitive and motor skills relies heavily on object exploration in their physical world. New types of assistive technology that enable children with impairments to interact with their environment have emerged in recent years, and they could be beneficial for children's cognitive and perceptual skills development. Many studies have reported on brain computer interface (BCI) research. However, a conventional electroencephalography (EEG) system is generally bulky and expensive. It also requires special equipment and technical expertise to operate successfully. In this study, a compact low-cost EEG system was used to detect signals related to movement intention and control a mobile robot control. EEG signals of three non-disabled adults were acquired by the BCI system and the movement intention was classified during physical movement and motor imagery. The average classification accuracies achieved during testing were 56.4% for the motor imagery and 72.7% for the physical movement. The results show moderate classification accuracy for the motor imagery; however, the classification accuracy for the physical movement was high for all the subjects. Even though further improvement of the system is still needed, the experimental results demonstrated the feasibility of a BCI-based robotic system that is affordable and accessible for many people including children with disabilities.
机译:儿童学习世界并发展感知,认知和运动技能的过程在很大程度上依赖于他们对物理世界的探索。近年来,出现了使残障儿童能够与其环境互动的新型辅助技术,它们可能对儿童的认知和感知技能发展有益。许多研究报告了大脑计算机接口(BCI)研究。但是,常规的脑电图(EEG)系统通常笨重且昂贵。它还需要特殊的设备和专业技术才能成功运行。在这项研究中,紧凑的低成本EEG系统用于检测与运动意图有关的信号并控制移动机器人控件。 BCI系统采集了三名非残障成年人的脑电信号,并在身体运动和运动成像过程中对运动意图进行了分类。在测试过程中,运动图像的平均分类准确度为56.4%,身体运动的平均分类准确度为72.7%。结果表明,运动图像的分类精度中等;但是,所有受试者的身体运动分类准确度都很高。尽管仍然需要对该系统进行进一步的改进,但实验结果证明了基于BCI的机器人系统的可行性,该系统对于包括残疾人儿童在内的许多人来说都是负担得起且可访问的。

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