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Physical characteristics of persons with physical disabilities regarding the use of augmentative and alternative communication devices

身体残疾者在使用增强和替代通信设备方面的身体特征

基本信息

批准号：
16091104
负责人：
HIGUCHI Norio
金额：
$ 26.37万
依托单位：
Ritsumeikan University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

项目摘要

In order to support communication of persons with physical disabilities, it is important to select the most suitable device to them and to adapt it to the characteristics of their residual functions.The authors have got research results shown below:1. The authors have proposed a new automatic selection algorithm for the most suitable input device to each person with different type of disabilities, and completed a trial system from the viewpoint of the maximal information transmission speed with consideration of user's range of motion, control accuracy and operating pressure to push switches.2. In order to measure range of motion and control accuracy for mouthsticks quantitatively, the authors have developed a measuring system using a large-sized touch panel. They have proposed polar coordinates model for the controllability of mouthsticks.3. For the investigation of the time pattern of the operating pressure at the top surface of the buttons the authors have developed special hardware and softw are for the measurement, and gathered data of time patterns of persons with different types of disabilities.4. For the improvement of the input speed of the scan-type character input system, the authors have indicated the effectiveness of the additional characters at the first row of the character table which are selected with consideration of the frequency of the combination of the neighboring characters in Japanese sentences.5. It has been indicated that the timing information of pushing switch is useful as well as linguistic information of the text for the automatic error correction of the scan-type character input system. The mental workload during the use of scan-type character input system with automatic error correction has been measured quantitatively by using NASA-TLX.

为了更好地支持肢体残疾人的交流，选择最适合肢体残疾人的设备并使其适应肢体残疾人的剩余功能特点是非常重要的。提出了一种新的自动选择算法，为不同类型的残疾人选择最适合的输入设备，并从最大信息传输速度的角度，考虑用户的运动范围、控制精度和操作压力来推动开关，完成了一个试验系统.为了定量测量口腔棒的运动范围和控制精度，作者开发了一种使用大尺寸触摸屏的测量系统。他们提出了极坐标模型的可控性的嘴棒.为了研究按键顶面操作压力的时间规律，作者研制了专用的测量硬件和软件，并采集了不同类型残疾人的时间规律数据.为了提高扫描式字符输入系统的输入速度，作者指出了在考虑到日语拼音中相邻字符组合频率的情况下，在字符表第一行选择附加字符的有效性.本文指出，在扫描式字符输入系统的自动纠错中，按下开关的时间信息和文本的语言信息都是有用的。本文用NASA-TLX对具有自动纠错功能的扫描式汉字输入系统的脑力负荷进行了定量测量。