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The outside button on the elevator is not friendly to every users. Including the children and
elder even the men with defective which can\'t touch the button easily. According to Maximum
population value rule, setting the button range between 95cm~127cm which form the floor.
Using the IR sensor and Soft key to define the position who can touch easily. Re-think the problem in our daily life!
National Yunlin Uniersity of S&T