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손일문,곽효연 대한인간공학회 2002 大韓人間工學會誌 Vol.21 No.4
In the programming of industrial robot, it is difficult to control the motion of mechanical arm by teach pendant in the coordinate system, because an operator may have the poor perceptions of the position and direction of mechanical arm in three-dimensional workspace. In this paper, we argued that cognitive characteristics must be considered in a study on the control-motion compatibility of teach pendant for improving the task performance. "The visual cues or references related to the positions and directions of axes in the coordinate system according to changing of operator-robot orientation" was suggested as one of the important factors by protocol analysis. In the experiments, this suggested factor, and visual cues(Gray,1991) were tested to evaluate the effects on task performance. In results, the visual cues was good to improve the task performance, too. But the improvement of task performance by the teach pendant considering the suggested factor was better than the visual cues. Furthermore, it was acquired as the best result that the reduction rate of task completion time, and the numbers of task errors were 48.2%, and 86.5%, respectively, by using the visual cues and the suggested factor, simultaneously. Male's work completion time was 78.0%, and the numbers of task errors were 61.4% compared to female's.
Interpretation of seongho's ergonomic philosophy in terms of contemporary views
손일문,이동춘,이상도 대한인간공학회 1991 大韓人間工學會誌 Vol.10 No.2
This paper interprets the Seongho/s ergonomec philosophy in terms of contemporary view of ergonomics, which appears in 'ichuck' of Seongho Sasul written in 1760's. The content of Jichuck is largely composed of three parts such as the proportions of human body dimensions, numerical examples, and the principles and method of clothes edsign. Some parts of human body proportions are tested and compared with Woodson's criteria and anthropometric data suggested by Korea Standards Research Institute in 1986. Concludingly, it is revealed that the ancient Seongho's ergonomic philosophy is regarded as apporopriate, and 'saji(4 fingers width)' is more reasonable for criterion of human body proportions.