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当今出现了一种神奇的上网方式,它既不需要网线也不需要Wi-Fi*,仅仅点盏灯就能上网。只要有光的地方就能上网,用窗帘遮住光线,信息就不会外泄!这就是Li-Fi(Light Fidelity),也被称为可见光通信。也就是通过可见光来传输数据,例如:灯亮表示1,暗表示0,通过快速“开关”来传输大量的“1”或“0”的数据信息。打开一盏LED灯就能上网,这种魔幻般的神奇功能是怎样做到的?这与目前常用的Wi-Fi有什么关系?让我们接着往下看。
There is a magical way of surfing the internet today that does not require a network cable or Wi-Fi * and just clicks a light to access the Internet. As long as the light of the place will be able to access the Internet, with curtains covering the light, the information will not leak! This is Li-Fi (Light Fidelity), also known as visible light communication. In other words, data is transmitted by visible light. For example, a light indicates 1, a dark indicates 0, and a large number of data information of “1” or “0” is transmitted through the fast “switch”. How can this magical magic function be achieved by turning on an LED light? What is the relationship with the currently popular Wi-Fi? Let’s look down.