How does Li-Fi work? | Li-Fi technology | Li-Fi full form
A few days ago, on the Internet, on various technology websites, in the newspapers, you must have heard about Li-Fi. Now what is Li-Fi ?, Li-Fi is better than Wi-Fi, or how Li-Fi is able to make your internet connection much faster in this article.
The li-Fi full form is Light-Fidelity but
What is Li-Fi?
Li-Fi's full name is Light-Fidelity. However, just knowing its full name will not tell you anything about Li-Fi. So we need to discuss this in more detail. First of all, the inventor of Li-Fi is Professor Harald Haas. In 2011, he first unveiled Li-Fi's motto to the public. And he showed how you can communicate with the help of lights.However, since then he has been researching Li-Fi in detail, and Li-Fi was tested about three weeks ago. And tests show Li-Fi is much faster than Wi-Fi.
Actually works on the concept of Li-Fi (VLC - "Visible Light Communication"). Now if you don't know what VLC is? Then I am trying to explain. If you give Constant Input Power to an LED bulb, you will see its Output and Constant. If you change some of the input power, you will see the change in the output. The faster you change the input, the faster the output changes. And with this idea, you can create a kind of communication system.
Haven't you got it in your head yet? Well, there is nothing to worry about! Giving more examples. Think of the TV remote this time. In fact, there is an infrared bulb in front of the TV remote. And when you press a certain button on the remote, the light in the specified position on that bulb goes into the water. This time the sensor on your TV realizes that attitude and completes its work. Suppose the remote's bulb beeps twice to change the TV channel, then the bulb will beep twice when you press the remote to change the channel. And the sensor on the TV will receive it, you already have a program on your TV that needs to change the channel after receiving the beep twice. Let's come, this time the matter is as clear as water.
Li-Fi's main mantra is something like this. But Li-Fi, like a TV remote, has more than one bulb, so you can exchange data much faster and many users can use it at the same time. In fact, VLC is the simplest way to manage Li-Fi. But Li-Fi is able to give you more. It will not happen that you will move away from the light of the LED bulb and your internet will be turned off. Li-Fi will automatically connect to you when you move from one bulb source to another.
Simple bulbs that we use in the office or at home can only be converted to LED bulbs and a type of driver can be used to use Li-Fi. As soon as the light comes from the roof of the house, you will be able to use the internet, at the best speed.
So this was the general idea of Li-Fi, and how Li-Fi works. This time let's take a look at the benefits of Li-Fi.
Special benefits of Li-Fi:
1. Speed: The first thing to say about the benefits of Li-Fi is the speed of Li-Fi. Using Li-Fi you can get speeds up to 100 Gbps. It has been thoroughly tested. Moreover, the frequency of Li-Fi is 10,000 times higher than that of Wi-Fi.2. Capable of more user control: Li-Fi has a much higher frequency than Wi-Fi, so Li-Fi has the ability to control many users at once. This means that even if the number of users increases, the connection error between them will not be found. If we talk about Wi-Fi, you will see that if a user uses more bandwidth, then the connection of another user is slow. But that won't be the case with Li-Fi technology.
3. More security: Wi-Fi or wireless signals can penetrate your walls and win. As a result, your neighbors get signals when you use Wi-Fi. And if you don't want to give your Wi-Fi password to a neighbor, come to e-Techtunes and find a tutorial on hacking Wi-Fi passwords. However, since Li-Fi runs on light technology, the signal is not likely to penetrate the walls of your house. Because we know that light cannot penetrate dense objects. So you will use the internet at home with Bindas Li-Fi and Kauro Baap will not have the ability to detect your signal.
4. Maximum signal: Wireless signal is actually WIDE. That is, when you turn on the Wi-Fi router, its signal spreads evenly around. Now if that signal doesn't come to you, it's useless. Because the more signals come to you, the more signals will go around you. But since Li-Fi is light, you can target it to your liking. This will allow you to get the most signals and increase your data density. You can exchange high speed data at the maximum signal.
5. Health Friendly: Many studies have shown that wireless signals have radiation. But since Li-Fi runs on light, there is no need for radiation. So you can say that Li-Fi is completely health friendly.
So these were the special benefits of using Li-Fi. There are many more benefits you can get when you use Li-Fi. So let's discuss some misconceptions about Li-Fi. Even before Li-Fi came, many misconceptions have spread around. So take a look at some of the misconceptions you've already had.
Some misconceptions about Li-Fi:
Many people know that Li-Fi is 100 times faster than Wi-Fi. In fact, I have seen this in many places, even on Techtunes and with this title you can get 2-4 tunes. But in fact it is a misconception. Because the latest technology of Wi-Fi is IEEE 802.11ad which is capable of providing speeds up to 600 Gbps. Which was never found in the Li-Fi test. So if you think that Li-Fi is 100 times faster than Wi-Fi, this is a misconception.
Another misconception is that if you download a movie with Li-Fi, it will be downloaded in 1 second or 2 seconds. You see, that's not the point at all. In fact, the speed of the Internet depends on your Internet service provider and the server from which you download the movie. I don't think there are any servers today that are capable of 100 Gbps speeds. However, you can transfer files locally at a speed of 100 Gbps.
Use of Li-Fi technology:
So let's talk about where and how Li-Fi can be used. Just as we use a Wi-Fi router to use Wi-Fi, we need a device to use Li-Fi, don't we? So let's take a look.
1. Street Lamps as Li-Fi Hotspots: As I said before, Li-Fi runs on light so street lamps are enough to turn your entire colony or neighborhood or road into a Li-Fi Hotspot. This allows you to use the Internet with a much lower cost Li-Fi Hotspot with public lighting. You can even turn the various twinkling lights, shop lighting boxes, etc. in the city at night into a Li-Fi Hotspot. Can you imagine how much easier life will be?
2. Connecting all devices together: You can easily connect all the current modern devices such as smart phones, laptops, TVs, etc. to each other using Li-Fi. In addition to exchanging data with each other, it will be possible to establish all kinds of connections through this Li-Fi technology. And there is the system of high speed complete data exchange.
3. Usable in any environment: Li-Fi technology can be used in any environment. You can also use Li-Fi in some environments such as minus plants or petrochemical plants where wireless signals can sometimes be harmful. You can even use Li-Fi on airplanes. If you look at the plane, you will see that there are light bulbs on the passenger seats, from there you can use Li-Fi. The best part is that you can use Li-Fi underwater. You know that underwater wireless signals do not work, but the light can be seen.
4. Use of Li-Fi in cars: You know that there are many LED bulbs in cars nowadays, and you can use Li-Fi in cars with the help of those bulbs. And using Li-Fi in smart cars, you can connect with other cars. This can greatly reduce the risk of accidents.
The future of Li-Fi technology:
Li-Fi is a completely new technology. So there won’t be a chance to get or use it right now. Maybe in the next 10 years, the use of Li-Fi will start in full swing. The Li-Fi device may then be pre-installed on the smart phone or tablet. However, I can clearly say that in the coming days, Li-Fi will be able to replace Wi-Fi.
The range of Li-Fi will not be much. Because it will be on your head, so you have to use Li-Fi from a certain place. However, you can rest assured about high speed data exchange.