Creating New Tactile Sensations for Tactile Aids with Designer Materials

使用设计师材料为触觉辅助工具创造新的触觉感觉

• 批准号: 10366542
• 负责人: Charles B. Dhong
• 金额: $ 40.66万
• 依托单位: UNIVERSITY OF DELAWARE
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-02-01 至 2027-01-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10366542
• 关键词: 3D Print; Address; Adhesions; Advocate; Area; Auditory; Benchmarking; Blindness; Categories; Chemical Structure; Chemicals; Chemistry; Collaborations; Color; Communities; Complex; Confusion; Cues; Development; Devices; Emerging Technologies; Esthesia; Face; Friction; Generations; Goals; Guidelines; Human; Hybrids; Hydrophobicity; Label; Lead; Mathematics; Mechanics; Metals; Methods; Occupations; Outcome; Pattern; Perception; Performance; Persons; Plastics; Play; Polymers; Property; Psychophysics; Research; Resolution; Resort; Role; Sensory; Series; Shapes; Silanes; Silicon; Solid; Speed; Standardization; Stimulus; Sum; Surface; Tactile; Technology; Testing; Texture; Touch sensation; Vision; Visual; Visual Aid; Visual impairment; Visually Impaired Persons; Water; Work; base; blind; cost; density; design; functional group; hydrophilicity; improved; innovation; materials science; mechanical force; mechanical stimulus; member; millimeter; multimodality; nanometer; next generation; single molecule; surface coating; theories

PROJECT SUMMARY For blind people, visual aids like a graphic or a plot are not accessible. Instead, tactile aids are used help render abstract concepts through an arrangement of physical features, like bumps, lines, and textures. Although useful, static tactile aids cannot easily render many abstract concepts and still face difficulties when displaying large amounts of information. A key issue with displaying dense, complex information is that using too many lines or bumps in a small space creates “tactile clutter”, leading to confusion and misinterpretation by the user. In fact, the ability of tactile aids to render information by touch is practically at full capacity. While fabrication costs are lowering with emerging technologies, the core technology of using patterns of bumps and textures to render information by touch has largely remained the same. Most current research is not focused on addressing this fundamental limitation and instead sidesteps by using other senses instead, like audio. Therefore, there has been little progress in tactile stimuli generated by a tactile aid, which has limited their ability to make complex information accessible for blind people. To address the lack of methods to create tactile sensations in static tactile aids, this research will increase the variety and density of tactile sensations by using “designer materials”. Designer materials, unlike physical features like bumps and lines, are surface coatings which use phenomena from surface chemistry to control adhesion and friction and thereby generate new tactile sensations. By relying on surface chemistry, it is possible to exert a level of control and spatial resolution not currently possible. Designer materials will be combined with current physical features to build the next generation of easier-to-read and more information dense tactile aids. These tactile aids will be demonstrated in a series of everyday activities with blind subjects. This project combines our team’s expertise in material science, solid mechanics, human psychophysics, and tactile aid development. Our project is centered around the discovery of new designer materials, developing next generation tactile aids, and mechanistic studies into the optimal design of tactile aids. Together, these areas allow us to rapidly iterate new tactile aids, build rationale guidelines for designing traditional and next generation tactile aids, and provides a much-needed expansion in the toolkit for tactile aid developers. To maximize impact, all aspects of the project involve close collaboration with members of the blind community.

项目概要 对于盲人来说，无法使用图形或绘图等视觉辅助工具，而是使用触觉辅助工具来帮助呈现。 通过物理特征（如凹凸、线条和纹理）的排列来抽象概念虽然有用，但 静态触觉辅助工具无法轻松呈现许多抽象概念，并且在显示大型图像时仍然面临困难 显示密集、复杂信息的一个关键问题是使用过多的线条或内容。 小空间中的颠簸会产生“触觉混乱”，导致用户混淆和误解。 触觉辅助设备通过触摸呈现信息的能力实际上已达到满负荷，而制造成本却很低。 降低新兴技术，利用凹凸图案和纹理进行渲染的核心技术 目前大多数研究并未集中于解决这个问题。 基本的限制，而是通过使用其他感官来回避，例如音频。 在触觉辅助器产生的触觉刺激方面进展甚微，这限制了他们制作复杂物体的能力 解决盲​​人无法获得静态触觉的问题。 触觉辅助工具，这项研究将通过使用“设计材料”来增加触觉的多样性和密度。 与凹凸和线条等物理特征不同，设计师材料是利用现象的表面涂层 从表面化学到控制粘附和摩擦，从而产生新的触觉。 在表面化学方面，可以实现目前无法实现的控制水平和空间分辨率。 设计师材料将与当前的物理特征相结合，构建下一代更易于阅读的内容 以及更多信息密集的触觉辅助工具这些触觉辅助工具将在一系列日常活动中得到展示。 该项目结合了我们团队在材料科学、固体力学、人类学方面的专业知识。 我们的项目以发现新设计师为中心。 材料、开发下一代触觉辅助工具以及触觉辅助工具优化设计的机械研究。 这些领域共同使我们能够快速迭代新的触觉辅助工具，建立设计的基本原理指南 传统和下一代触觉辅助工具，并为触觉辅助工具包提供了急需的扩展 为了最大限度地发挥影响力，该项目的各个方面都需要与盲人成员密切合作。 社区。