面向老年用户的功能沙发坐姿体压特征研究

本研究面向老年用户,采用体压分布测试技术,探究了在使用功能沙发时,不同坐姿下座面和靠背的体压分布规律。结果显示,随着坐姿变化,沙发座面的体压数据先减小后增大,但仰靠和躺靠的变化幅度较小。在沙发靠背上的体压数据方面,躺靠坐姿下的体压大于仰靠坐姿。根据主观评价分析,老年用户认为躺靠坐姿最舒适,坐姿倾角越大,用户的休息程度越高。综合主客观评价分析表明,老年人应避免长时间保持正坐姿,以减轻大腿的压力,并且设计沙发的腰靠尺寸时应考虑不同用户的体态特征,以满足不同老年用户的需求。

基于压力传感器的人体坐姿识别测试研究

坐姿识别对坐姿监测具有重要的研究意义。目前坐姿识别准确率偏低、装置调试复杂、成本较高,针对这些问题文中介绍了一种基于压力传感器的坐姿识别方法。该方法根据不同坐姿人体上半身8处监测位置压力传感器压力值的差异,实现对不同坐姿的识别。由测试实验的结果可知,此法能对4种坐姿进行识别,且在身高相同的条件下,压力值大小与体重的大小成正相关。在4种坐姿中,胸椎和腰椎处的压力值明显偏高。文中结果证明此方法能较好地应用于坐姿监测设备,实现对坐姿的识别和监测。

Personal Space of Small Mobile Robot Moving towards Crouching, Sitting and Supine Adult Males

In this paper, the authors present a basic study of the planning techniques for human-robot living spaces. Taking into account the previous studies, the authors clarify at what distances adult males feel comfortable with a small mobile robot. The authors investigated the impact of differences in position in a personal distance of the robot. The authors make the robot to move towards the subjects at different speeds and from five different angles （0°, 45°, 90°, 135° and 180°） while they were crouching, sitting on the floor and supine. In this experiment, about setting up a small mobile robot, the authors explained the robot does not have a support function for the people watching. A questionnaire survey was also conducted before and after the experiments. The result is that differences were out to personal distance with the robot due to the difference in position. The research finds that personal distance also becomes small position changes, sight line becomes lower. In addition, individual distance is increased when the slow speed as well as the paper before.