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http://dx.doi.org/10.14372/IEMEK.2013.8.4.227

Development of Smart pH Reader Based on Android Smart Phone  

Kim, Min J. (Pukyoung National University)
Chang, Byoung-Yong (Pukyoung National University)
Joo, Moon G. (Pukyoung National University)
Publication Information
IEMEK Journal of Embedded Systems and Applications / v.8, no.4, 2013 , pp. 227-233 More about this Journal
Abstract
In this paper, we propose an implementation of pH reader on Android smart phone by using Eclipse and SDK. After taking a picture of pH spectrum and tested litmus paper at the same time, we save the picture. From the picture, reference values in RGB and YUB of all pH color in the spectrum are obtained and then those of a chosen point by user in the litmus paper are to be compared with. The distances between the reference colors and the litmus paper's color are measured by Euclidean distance in RGB or YUB coordinate. The nearest two pH values are taken to find the weighted average of the result. Series of test show the proposed scheme is feasible and has performance within 10% error.
Keywords
Android; Smart phone; pH reader; Eclipse; RGB; YUV;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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