重度身体障害者のためのピエゾフィルムセンサを用いた呼気入力デバイスの開発

概要

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This paper presents the realization of an input device for disabled persons, a hands-free man-machine interface using expiration. In our research, the expiration signal was detected by a piezo film sensor array. The piezo film sensor can convert the vibration generated by the expiration into electric signal. The sensors also had added benefits, including being very light weight, small in size and of low-price. The device enabled disabled persons to dramatically extend the number of control channels hands-free by changing the strength direction, and duration of expiration. We describe the results of research on the basic characteristics of the expiration signal for developing an input device for disable persons as follows: (i) possibility of detection of the expiration by the piezo film sensor, (ii) development of the novel method for identification of the expiration signal and the noise, (iii) the improvement of the number of the control channels.
2010-02-26