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Research on an assist system for sustaining the variety of activities of the aged people in house considering QOL

考虑QOL的支持居家老年人多样化活动的辅助系统研究

基本信息

批准号：
14580481
负责人：
KAJIHARA Yasuhiro
金额：
$ 1.98万
依托单位：
OKAYAMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14580481/
关键词：
Industrial Engineering Human Engineering Aged people Activity of daily living Virtual Reality Monitoring QOL バーチャルリアリティ生活のリズム EMG

项目摘要

We developed a monitoring system that watches the activities of the aged and a virtual reality system that can analyze the movements of the aged staying home for the purpose of extending the scope of activity of the aged. As for the monitoring system, we developed a recognition method that can make out human figures from input images though the brightness of a natural light and switching on and off of ceiling lights change the lightness of a room. Our movement analysis unit that takes advantage of virtual reality made it possible to analyze the effect of the dimension, such as height and depth, of furniture over the work posture of the aged and the locus of each part of their bodies in their daily life activities. In connection with this study, we also developed a movement simulation method that uses a human body link model. In this method, the upper body of a human being is represented by a link model having eight joints. In consideration of the physical characteristics of the aged, we set resistance to and constraints on the bending of each joint. We then specified the positions of fingers at the starting and ending points of movements and formulated the problem of finding the bending angle of each joint as a non-linear problem. Thanks to the use of a simulation model, now it is possible to make a simulation and an analysis of movements of the aged at any time and place.

为了扩大老年人的活动范围，我们开发了一个监视老年人活动的监视系统和一个可以分析居家老年人活动的虚拟现实系统。至于监控系统，我们开发了一种识别方法，可以从输入图像中识别出人物，尽管自然光的亮度和天花板灯的开关会改变房间的亮度。我们的运动分析单元利用虚拟现实，可以分析家具的高度和深度等尺寸对老年人工作姿势的影响，以及他们在日常生活活动中身体各部位的轨迹。在这项研究中，我们还开发了一种运动模拟方法，使用人体链接模型。在该方法中，人的上半身由具有八个关节的连杆模型表示。考虑到老年人的身体特征，我们对每个关节的弯曲设置了阻力和约束。然后，我们指定了手指在运动起点和终点的位置，并将寻找每个关节的弯曲角度的问题制定为非线性问题。由于使用模拟模型，现在可以在任何时间和地点对老年人的运动进行模拟和分析。