| Issue |
MATEC Web Conf.
Volume 167, 2018
2018 3rd International Conference on Mechanical, Manufacturing, Modeling and Mechatronics (IC4M 2018) – 2018 3rd International Conference on Design, Engineering and Science (ICDES 2018)
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|
|---|---|---|
| Article Number | 03003 | |
| Number of page(s) | 6 | |
| Section | Engineering Modeling and Mechatronics | |
| DOI | https://doi.org/10.1051/matecconf/201816703003 | |
| Published online | 23 April 2018 | |
Touch Screen Calibration Based on Laser Sensors
Division of Computer & Electronic Systems Engineering, Hankuk University of Foreign Studies, Republic of Korea
a Corresponding author: sycho@hufs.ac.kr
Interactive learning is becoming important in teaching and learning. In particular, the electronic board has educational significance in terms of being able to share and discuss learner's contents with instructors. However, the existing electronic board is not easily used in an educational environment due to the high cost and complicated installation process. This paper propose a mathematical model to calibrate the position of user coordinates by installing two laser sensors and a reflector on a wall. We virtually locate 9 points with software. To validate the algorithm, Raspberry Pi2 is used as a virtual sensor and simulation was performed by PC using RS-232 communication. This algorithm is powerful because up to four pre-saved coordinates are used to provide the higher accuracy.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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