OptiStructures: Fabrication of Room-Scale Interactive Structures with Embedded Fiber Bragg Grating Optical Sensors and Displays
OptiStructures: Fabrication of Room-Scale Interactive Structures with Embedded Fiber Bragg Grating Optical Sensors and Displays
复制标题
OptiStructures：利用嵌入式光纤布拉格光栅光学传感器和显示器制造房间规模的交互式结构
DOI：
10.1145/3397310
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Hudson, Scott E.
中科院分区：
文献类型：
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作者：
Swaminathan, Saiganesh;Fagert, Jonathon;Rivera, Michael;Cao, Andrew;Laput, Gierad;Noh, Hae Young;Hudson, Scott E.
最近在“智能建筑”社区中有一个相当感兴趣的话题，涉及使用传感器构建交互设备，并使用新的制造方法快速创建这些对象。然而，这些工作中的大部分都是在所谓的手工尺度上完成的，对较大的物体和结构(在家具或房间尺度上)的关注较少，尽管我们经常确实被这样的物体包围。在这项工作中，我们提出了一套在这些尺度上创建交互对象的新技术。我们演示了将输入传感器和显示器直接制成铸造材料--由在模具中凝固的液体或膏体形成的材料；包括，例如：混凝土、石膏、聚合物树脂和复合材料。通过我们的一套新颖的传感器和制造技术，我们能够在室内规模和各种材料上识别人类活动。我们的技术创造的物体看起来与典型的被动物体相同，但包含用于输入传感和简单显示的内部光纤。我们使用一种新的制造设备将光纤注入到数控铣削模具中。光纤布拉格光栅光学传感器被配置为非常灵敏的振动传感器嵌入在这些对象中。这些设备不需要内部电源，可以沿着一根光纤放置在多个位置，并且可以从光纤末端进行询问。我们通过创建两个完整的应用原型来评估系统的性能：交互墙和交互桌子。通过这些原型，我们演示了我们的系统能够感知八个不同用户的各种人类活动。我们的测试表明，有了合适的材料，这些传感器可以检测和分类直接相互作用(如敲击)和由活动引起的更细微的振动，如在附近走过地板。
A recent topic of considerable interest in the "smart building" community involves building interactive devices using sensors, and rapidly creating these objects using new fabrication methods. However, much of this work has been done at what might be called hand scale, with less attention paid to larger objects and structures (at furniture or room scales) despite the fact that we are very often literally surrounded by such objects. In this work, we present a new set of techniques for creating interactive objects at these scales. We demonstrate fabrication of both input sensors and displays directly into cast materials -those formed from a liquid or paste which solidifies in a mold; including, for example: concrete, plaster, polymer resins, and composites.Through our novel set of sensing and fabrication techniques, we enable human activity recognition at room scale and across a variety of materials. Our techniques create objects that appear the same as typical passive objects, but contain internal fiber optics for both input sensing and simple displays. We use a new fabrication device to inject optical fibers into CNC milled molds. Fiber Bragg Grating optical sensors configured as very sensitive vibration sensors are embedded in these objects. These require no internal power, can be placed at multiple locations along a single fiber, and can be interrogated from the end of the fiber. We evaluate the performance of our system by creating two full-scale application prototypes: an interactive wall, and an interactive table. With these prototypes, we demonstrate the ability of our system to sense a variety of human activities across eight different users. Our tests show that with suitable materials these sensors can detect and classify both direct interactions (such as tapping) and more subtle vibrations caused by activities such as walking across the floor nearby.