Variable Compliance Haptic Field Displays

可变顺应性触觉场显示器

• 批准号: 0413204
• 负责人: James Colgate
• 金额: --
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0413204&HistoricalAwards=false
• 关键词: Variable; Compliance; Haptic; Field; Displays

Prop ID: 0413204 P I: Colgate, J. Edward Organization: Northwestern University Title: Variable Compliance Haptic Field Displays AbstractThis research will address a novel class of haptic devices: "Haptic Field Displays" (HFDs). HFDs are large scale arrays of moveable pins or "tactels" covered by a flexible graphical display. HFD pin arrays will be much like the "tactile arrays" that have been developed for displaying Braille or virtual environments, but with some key differences. For instance, HFDs will be full-screen enabling scanning with the fingertip or using multiple fingers. They will operate not by actively controlling the displacement or force of each tactel, but by controlling compliance. The intellectual merit of this research stems from two sets of studies. The first is a set of psychophysical studies that will provide quantitative specifications for HFDs including the necessary dynamic range of tactel compliance and the resolution (or just noticeable difference) of compliance. These studies will also lead to an initial set of HFD primitives that naturally encode affordances (such as pushing, sliding or rotating). Finally, these experiments will assess human operator performance in using HFDs, especially in spatial localization and analog level-setting tasks. The second set of studies will address the design and integration of electronically programmable HFD tactels, each a meso-scale mechatronic system including a variable compliance mechanism, actuation and sensing. These studies will focus on the meso-scale realization of two low power "semi-active" approaches: variable damping achieved by controlling an orifice, and variable compliance achieved by placing a continuously variable transmission (CVT) between the fingertip and compliant element. Broader impacts of this research include the potential to improve the usability of graphical interfaces for normally-abled populations, as well as increase the accessibility of interfaces for differently-abled populations such as the elderly, those with low vision, and those who are blind. In addition, it has the potential to increase safety and utility in situations where high demands are placed on vision. For instance, HFDs would allow automobile drivers to focus visual attention on the road while simultaneously taking advantage of the growing assortment of electronic devices that may be found in a vehicle. This research will also impact undergraduate and graduate education at Northwestern more generally: tactel design and control will be integrated into at least two project-based courses taught by the P.I.s.

道具ID：0413204 P I：Colgate，J.Edward组织：西北大学标题：可变符合性触觉场显示器摘要本研究将解决一种新型触觉设备：“触觉场显示器”(HFDs)。HFD是由灵活的图形显示器覆盖的可移动引脚或“手镯”的大规模阵列。HFD引脚阵列将非常类似于为显示盲文或虚拟环境而开发的“触觉阵列”，但有一些关键的区别。例如，HFD将是全屏幕的，可以用指尖或使用多个手指进行扫描。他们不会通过主动控制每个塔克特尔的位移或力来运作，而是通过控制顺应性来运作。这项研究的学术价值来自两组研究。第一个是一套心理物理研究，它将为HFDs提供量化规范，包括Tactel遵从性的必要动态范围和遵从性的分辨率(或仅仅是明显的差异)。这些研究还将导致一组初始的HFD原语，这些原语自然地编码负担(如推、滑或旋转)。最后，这些实验将评估人类操作员在使用HFD时的表现，特别是在空间定位和模拟水平设置任务中。第二组研究将涉及电子可编程HFD手柄的设计和集成，每个手柄都是一个中尺度机电系统，包括可变的顺应机构、驱动和传感。这些研究将集中在两种低功率“半主动”方法的介观实现上：通过控制孔口实现可变阻尼，以及通过在指尖和柔顺元件之间放置连续可变变速器(CVT)来实现可变柔度。这项研究的更广泛影响包括有可能改善正常功能人群的图形界面的可用性，以及增加不同功能人群(如老年人、低视力者和盲人)界面的可访问性。此外，在对视力要求很高的情况下，它还有可能提高安全性和实用性。例如，HFD将允许汽车司机将视觉注意力集中在道路上，同时利用车辆中可能发现的越来越多的电子设备。这项研究还将对西北大学的本科生和研究生教育产生更广泛的影响：塔克特尔设计与控制将被整合到至少两门由P.I.教授的基于项目的课程中。