研究

UW students introduce Printed Wi-Fi – plastic, 3D printed, smart sensing

Vikram Iyer, Shyam Gollakota and Justin Chan at the University of Washington (UW) have developed a unique concept that could help transform the way we shop, take stock, and even control TV sets. By using3D printed sensors,团队正在创建更智能的塑料物体,这些物体能够无线通信,而无需使用电池或电子设备。

Titled印刷Wi-Fi,该概念已被证明a recent paper由艾耶(Iyer),戈拉科塔(Gollakota)和陈(Chan)合着。在文章中,团队演示了一系列塑料对象,可用于控制计算机屏幕,中继库存和监视瓶中剩余的洗涤剂量 - 所有这些都使用台式3D打印机制造,并使用商业上可用的灯丝制成。

3D printing the unseen

说话UW新闻的文章Iyer, an electrical engineering doctoral student at the university and co-author of the study, explains, “Our goal was to create something that just comes out of your 3D printer at home and can send useful information to other devices,”

“……最大的挑战是,如何仅使用塑料与Wi-Fi无线通信?那是以前没人能做的。”

Plastic objects created by the team are made into active Wi-Fi antennas by 3D printing a conductive strip onto the body, made from a copper-containing plastic filament. The objects are then capable of reflecting signals from a existing Wi-Fi router, to make data which is readable on a mobile phone or other Wi-Fi receiving device.

图表解释了UW的印刷Wi-Fi。图片通过UW打印的Wi-Fi
Diagram explaining UW’s Printed Wi-Fi. Image via UW Printed Wi-Fi

反向散射物理

UW的对象使用反向散射物理学工作 - 摄影中负责雷达系统和异常效果(如漂浮球)的波浪的反射。Wi-Fi活动对象没有生成和传输自己的数据,而是反映了路由器作为二进制代码发出的信号。

该代码的1和0s由对象的3D打印天线上的“命中”或“错过”确定。此代码的反射本身是由塑料3D打印机制控制的,该机构通过打开和关闭在波浪路径中的中断。

3D打印的齿轮和天线系统用于无线控制计算机滚动和UW研究中所示的其他功能。剪辑通过贾斯汀·陈on YouTube

越过Alexa

在概念证明用例证明中,已经使用了印刷Wi-Fi技术,为潮汐瓶的瓶子提供了一个附件。该设备可与手机连接使用,以自动订购新产品,当时水平低时,削减了中间人以提供家庭用品。

UW's 3D printed detergent sensor. Photo by Mark Stone/University of Washington
UW’s 3D printed detergent sensor. Photo by Mark Stone/University of Washington

“As you pour detergent out of a Tide bottle, for instance,” explains Gollakota, associate professor in the Paul G. Allen School of Computer Science & Engineering and senior author of the paper, “the speed at which the gears are turning tells you how much soap is flowing out,”

“ 3D打印开关和天线之间的相互作用无线传输数据。然后,接收器可以跟踪您剩下的洗涤剂数量以及降低一定量的水量时,它可以自动向您的亚马逊应用发送消息以订购更多。”

Sensors are getting smarter

使用与UW研究类似的原则,新罕布什尔州达特茅斯学院的一支团队发明了重定向和控制WiFi信号的设备从无线路由器发射。3D打印传感器也正在进行实验,以实现其潜在应用power generation industriesthe development of wearables.

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第二届年度3D印刷行业奖的提名现已开放。在这里为最佳研究团队提供选择。

Featured image shows UW’s Printed Wi-Fi mechanism. Photo by Mark Stone/University of Washington