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2019 | OriginalPaper | Chapter

Intelligent HCI Device for Assistive Technology

Authors : Rui Azevedo Antunes, Luís Brito Palma, Hermínio Duarte-Ramos, Paulo Gil

Published in: Technological Innovation for Industry and Service Systems

Publisher: Springer International Publishing

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Abstract

This paper presents a new intelligent Human-Computer Interaction (HCI) device for Assistive Technology. The developed device can be used as a mouse or as a gamepad, moving a part of the human body, typically the head, for hands-free computer access tasks. The state-of-the-art hardware uses an Advanced RISC Machine 32-bit microcontroller and a microelectromechanical 9-degree motion sensor, including a System-in-Package (SiP) accelerometer, gyroscope and magnetometer. The hardware/software device with a human-in-the-loop controller can be identified as a Cyber-Physical intelligent system to be incorporated in the “Industry 4.0” trend. Results reveal that the embedded controller of the HID device allows the improvement of the user’s performance, decreasing the effort and the execution time of the hands-free computer tasks.

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Footnotes
1
The MATLAB ident command from the System Identification toolbox, provides a Graphical User Interface (GUI), allowing the identification of this type of ARX structure by Least Squares (LS), returning the \( T_{{P_{1} }} \), \( T_{{P_{2} }} \) and \( T_{z} \) parameters of the equivalent closed-loop resulting model \( G_{{{\text{x}},{\text{y}}}} (s) \) (10), for each screen axis, that aggregates the operator dynamics and the HID device.
 
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Metadata
Title
Intelligent HCI Device for Assistive Technology
Authors
Rui Azevedo Antunes
Luís Brito Palma
Hermínio Duarte-Ramos
Paulo Gil
Copyright Year
2019
DOI
https://doi.org/10.1007/978-3-030-17771-3_13

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