Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Implementation of a Touch Panel System using Accelerometers

가속도센서를 이용한 터치패널시스템 구현

  • 이영섭 (인천대학교 임베디드시스템공학과) ;
  • 김동일 (인천대학교 임베디드시스템공학과) ;
  • 강민수 (인천대학교 임베디드시스템공학과)
  • Received : 2011.08.18
  • Accepted : 2011.11.15
  • Published : 2011.12.01
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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.

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References

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