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http://dx.doi.org/10.5302/J.ICROS.2011.17.12.1194

Implementation of a Touch Panel System using Accelerometers  

Lee, Young-Sup (University of Incheon)
Kim, Dong-Il (University of Incheon)
Kang, Min-Su (University of Incheon)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.17, no.12, 2011 , pp. 1194-1202 More about this Journal
Abstract
A touch panel system has been one of the most widely used input devices. In this study, a touch panel embedded system using accelerometers is considered in order to make commercial white-boards or plates into touch panels. Three accelerometers are located at different positions on such a white board, so that touch points on the board can be identified using the sensors. For the identification of touch points, a TDOA (Time Difference of Arrivals) technique is applied in the algorithm which was implemented in a DSP board (TI 6713 DSK), which can provide a precise touch location by using the cross-correlation function of measured signals from the three accelerometers. Experiment results show that the touch panel system with accelerometers could provide the exact touch location. Thus a novel approach using such accelerometers could be applied to a new touch panel system.
Keywords
touch panel; accelerometer; cross correlation function; touch location; TDOA (Time Difference of Arrivals);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
Times Cited By SCOPUS : 0
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