Indeed, according to common sense, Bluetooth transmission is absolutely impossible to transmit over a distance of several kilometers.
But since the reality is true, Li Zhong believes that there are details that they don't know.
After all, the world is so big and there are so many experts everywhere, it’s possible that some people just have special skills.
However, Li Zhongna is engaged in scientific research, and a rigorous style is an essential element for people like them.
So for Li Zhong, things must be scientifically proven.
After carefully synthesizing Tang Xiaoquan's follow-up answers and related procedures, Li Zhong touched his chin and muttered: "Xiaoguo, don't say anything. I thought about it and found out that the method that bastard said is actually possible."
"What!?" Just pretend that there is something wrong with your ears. You can just say that Tang Xiaoquan, a layman, said nonsense. His brother Li Zhong also joined in the conversation, which was really hard for Li Guo to accept: "Brother! I didn't You heard me wrong, you said that is the only way to do it? Aren’t you talking nonsense! Let me ask you, what kind of Bluetooth can hinder the communication that can support several kilometers? If Bluetooth is so awesome, why bother with those base stations!?”
"Haha, Xiaoguo, don't rush to conclusions so early. Just listen to me and explain to you." Li Zhong looked confident.
Seeing that his brother was not joking, Li Guo took two deep breaths, suppressed the restlessness in his heart, and said patiently: "Okay, tell me, I'd like to hear what you have to say."
"This... mobile phone communication base stations are necessary, that's right."
"Well, that's right. Now the problem is that the base stations everywhere are paralyzed. Xiao Tanggang also said that they are over there at WH and their mobile phones have no signal. I am right, Xiao Tang, is that what you just said? ?”
"Yes! That's what I said." He didn't expect that his question would cause the Li brothers to argue, which made Tang Xiaoquan feel a little embarrassed in the middle.
But in order to get the answer, he still chose to continue listening.
"You see...that's the problem!"
The meaningful sentence, Li Zhong's deliberately drawn-out tone matched his just-right expression, immediately attracted the attention of the country. Quan's interest.
"What's the problem? Brother, stop being pretentious and get to the point."
"Haha," smiled calmly. Li Zhong nodded: "We are always accustomed to using inertial thinking when thinking about problems. When it comes to base stations, our subconscious instinct will think of those base stations set up by mobile companies, right? But don't forget, as long as conditions permit, the mobile phone itself can't As a base station?”
"The mobile phone itself serves as a base station?" He pondered Li Zhong's words carefully. Tang Xiaoquan looked confused and confused, but Li Guo had vaguely caught something.
"If my analysis is correct, the root of Bluetooth communication is to use mobile phones as base station nodes for transmission. We usually use two mobile phones to transmit Bluetooth messages. The limit distance is within 10 meters, so imagine if ten What will be the effect if mobile phones are rolled out at a node of 10 meters?"
As soon as he said this, Li Guo immediately understood: "You mean, Bluetooth transmission is actually a network connected by many mobile phones?"
"That's right! The Bluetooth transmission distance of a single mobile phone is limited. But once these points are connected together to form a Bluetooth network, the signal can be expanded without limit."
"That's true! But the question is, how did the people who created this network get so many mobile phones, and what is the switching and transmission platform to maintain?"
"Now let's talk about the flyer Quanzi mentioned before? Obviously the people who run this network are also aware of the problem you mentioned, so they spread the flyers widely in the city. And mobile phones are everywhere. I believe that as long as Anyone who sees the flyer will definitely hope to find the official organization through mobile phone contact. This is one of the ways to expand the Bluetooth network." Li Zhong held out a finger and continued:
"However, it is not enough to rely on these individuals for the operation of a network. There must be a transfer station for maintenance and transfer to ensure the smooth flow of signals. So according to my estimation, in addition to mobilizing survivors in the city, the other party must set up facilities in major buildings in the city. It’s a relay base station. It’s not difficult to do this, you just need to get a portable base station or a high-power Bluetooth device.”
"Fake base station!" After hearing Li Zhong's words, Tang Xiaoquan immediately thought of the fraud that was often mentioned in past news reports.
Some criminals will use fake base stations purchased through illegal channels to roam in consumption places such as banks, and send fake information to users by blocking and pretending to be official base stations. Thereby inducing users to be fooled and then profit from it.
Even Tang Xiaoquan could understand things, and Li Guo naturally understood it better. After carefully savoring his brother's analysis, he nodded to himself: "It makes sense! Relying on Bluetooth as a node, and then cooperating with the mobile portable base station to convert support, I really I want to meet that developer, he’s such a genius!”
The technology itself is not difficult. If this matter were left in the past, no one would even notice it.
After all, there are so many ways to make calls, and there is no need for people to use such cumbersome and unsafe communication methods.
However, things are different in the last days. Things that were once simple have now become extremely troublesome.
So after analyzing the reality of the Bluetooth network at this time, the Li brothers were all sincerely impressed.
In response, Tang Xiaoquan played with his hair: "This person is not simple! But I think it can't be done by one person to build such a big network, right?"
"Theoretically, one person can do it, but in reality right now... it's difficult. Why, look at you, Quanzi, are you thinking of something else?"
It has to be said that after a short period of contact, the Li brothers' understanding of Tang Xiaoquan has become deeper and deeper.
Just by watching Tang Xiaoquan play with his hair, Li Zhong knew that the other party must have made a new discovery.
"Haha," grinned. This feeling of being guessed made Tang Xiaoquan a little embarrassed: "I was wondering who is so determined to carry out such a project. If it is just for communication, a wireless mobile phone is enough. At worst, we can get a car radio, so why go to all the trouble?"
"Well, this is indeed a bit strange, but judging from the requirement to register for use, the other party seems to intend to include the urban survivor plan."
"That's right!" Tang Xiaoquan stopped his movements and tapped his finger on the table: "Li Zhong, what you said is the same as mine. I feel that establishing a network is probably just the first step for the other party. Then he can use the tools at hand to information resources and get in touch with the survivors one by one. As long as he is willing, he can easily bring together the scattered survivors! Don’t you think so?” (To be continued.)
