Transcript · English → Chinese
Using Humans as Antennas for 6G
这是2023年1月 《大众机械》杂志上的一篇文章。
科学家想利用人体作为天线 来为6G供电。我直接读一下这篇文章。
我们还不完全清楚6G 无线技术将如何运作，
但马萨诸塞大学阿默斯特分校的 研究人员认为，利用人类作为
天线来为6G供电 可能是最可行的方法，
用来收集原本会被浪费掉的 额外能量。
在不断努力 加速信息交换的过程中，
科学家们已经开始 研究可见光通信（VLC），
这基本上是光纤的无线版本，它利用
闪烁的光线来传输信息。
将VLC引入
6G促使麻省大学阿默斯特分校团队 进行更深入的研究。首先，介绍一下6G 的背景。
温习一下，5G，
被认为是第五代 也是最新一代的
蜂窝宽带网络， 目前仍处于起步阶段。
真正的5G网络运行在
30至300吉赫兹之间的 毫米波频段，
其频率比以前的
4G蜂窝网络 高出10到100倍。
一些手机运营商在耍花招，
他们将4G频谱的高频端 称为5G。
这些蜂窝世代的定义 由一个全球合作组织定义，
即3GPP。鉴于科技 永无止境的发展历史，
5G在未来不可避免地 会被新网络所取代。
只是目前还不完全 清楚6G会是什么样。
与此同时，
在新的研究中，麻省大学阿默斯特分 校的 科学家发现人类可以发挥关键作用
在提高VLC效率方面发挥作用， 通过将人体作为线圈载体
以铜线捕获来自VLC的废弃能量。
研究的主要作者，
我不知道该怎么读他的名字，
麻省大学阿默斯特分校信息 与计算机科学教授解释道：
VLC非常简单且有趣。
它不使用无线电信号来无线发送 信息，而是使用
LED的光线，这些LED每秒 可以开关多达100万次。
LED灯泡随后可以传输
数据，而任何带有摄像头的设备， 比如我们的智能手机、
平板电脑或笔记本电脑都可以作为 接收器， 张说道。
VLC的缺点在于高比例的能量泄漏， 这伴随着发射
旁路通道无线电波信号。
研究人员认为，如果他们能够 收集这些浪费的射频能量，
它们可以派上大用场， 为小型电子设备供电。
在对导线、线圈 和背景进行实验后，
科学家们意识到人体 提供了最好的介质，
比测试的其他任何环境 效果好上十倍，
能有效放大铜线圈 收集流失射频能量的能力。
随后，他们制作了这款手环，
这是一款价格低廉的装置， 旨在佩戴在前臂上，
但也可以改装成戒指、
腰带或项链来收集流失的能量。
这款铜线圈手环 可以产生微瓦级的电量，
足以支持佩戴在身上的 健康监测传感器，
该团队表示，这些传感器 工作时只需要很少的电力。
好吧，还有一些内容，但那就是， 是的，我想是6G可穿戴天线。
End of transcript · 543 words · machine translated
Original transcript (English)
This is an article in Popular Mechanics from January of 2023. Scientists want to use people as antennas to power 6G. I'll just read the article. We don't know exactly how 6G wireless technology is going to work, but researchers at the University of Massachusetts Amherst believe using humans as antennas to power 6G may be the most viable way
to harvest additional energy that would otherwise get wasted. In the always present effort to speed up informational exchange, scientists have already started investigating visible light communication, VLC, basically a wireless version of fiber optics that uses flashes of light to transmit information.
Adding VLC to 6G spurred the UMass Amherst team to dig even deeper. First, some background on 6G. As a refresher, 5G, what is considered the fifth and most recent generation of cellular broadband networks, is still in its infancy.
True 5G networks operate in millimeter wave frequency between 30 and 300 gigahertz, which are 10 to 100 times higher frequency than previous 4G cellular network. Some cell phone providers cheat,
however, by claiming the upper end of the 4G spectrum as 5G. The definition of these cellular generations are defined by a global partnership known as 3GPP. Given the history of the never ending march of technology, it's inevitable that 5G will be replaced by a new network in the future. It just isn't entirely clear what 6G will be.
In the meantime, in the new study, the UMass Amherst scientists found that humans can play a crucial role in making VLC more efficient by using their bodies as a carrier for coiled copper to catch waste energy from VLC. Lead study author,
I don't know how to say his name, UMass Amherst Professor of Information and Computer Sciences explains, VLC is quite simple and interesting. Instead of using radio signals to send information wirelessly, it uses the light from LEDs that can turn on and off up to 1 million times per second.
LEDs bulbs can then transmit data and anything with a camera like our smartphones, tablets or laptops could be the receiver, Zhang says. The downside of VLC comes from a high rate of leakage of energy with the emitting of side channel radio wave signals.
The researchers believe that if they can harvest the wasted radio frequency energy, they can put it to good use by powering small electronic devices. After experimenting with wires, coils and backgrounds, the scientists realized the human body offers the best medium, up to 10 times better than any other setting tested for amplifying
a copper coil's ability to collect leaked RF energy. They then built the bracelet, an inexpensive gadget that is meant to be worn on the forearm, but can adapt into a ring, belt or necklace to harvest lost energy.
The coiled copper bracelet can reach up to micro watts, enough to support on body health monitoring sensors, which require little power to work, the team says. Okay, there's a little more, but that's, yeah, 6G wear antennas, I guess.
