Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan.
Tokyo Metropolitan University, 6-6 Asahigaoka, Hino, Tokyo, 191-0065, Japan.
Appl Ergon. 2019 Nov;81:102881. doi: 10.1016/j.apergo.2019.102881. Epub 2019 Jun 26.
The aim of this study was to propose a new method for optimizing the touch-screen installation position in order to minimize the physical workload and increase screen visibility. Ten students participated in this study. The participants utilized a touch screen at different installation heights (50, 65, and 80% of stature), tilt angles (0°, 45°, and 90° from the horizontal plane), and having different button sizes (a square with a side of 10, 20, and 30 mm). The joint angles, when using a touch screen, were measured to calculate the joint torque ratios (JTRs). Subjective screen visibility were also determined. The optimal installation position was determined by solving a bi-objective optimization problem consisting of two objective functions. The Pareto optimal solutions for the two objectives showed a range of 1124-1251 mm and 44.4-67.9°. The proposed method determined the optimal installation position of the touch screens.
本研究旨在提出一种新的方法来优化触摸屏的安装位置，以最小化体力负荷并增加屏幕可见性。十名学生参与了这项研究。参与者在不同的安装高度（身高的 50%、65%和 80%）、倾斜角度（与水平面成 0°、45°和 90°）以及按钮大小（边长为 10、20 和 30mm 的正方形）下使用触摸屏。测量使用触摸屏时的关节角度，以计算关节转矩比（JTR）。还确定了主观屏幕可见性。通过求解由两个目标函数组成的双目标优化问题来确定最佳安装位置。两个目标的帕累托最优解显示范围为 1124-1251mm 和 44.4-67.9°。该方法确定了触摸屏的最佳安装位置。
