Under the biochemistry building, Xu Chuan followed Xu Xiao towards the laboratory.

Virtual reality is actually quite broad.

It includes computer technology, electronic information, and simulation technology. and so on, and each of these branch types involves many different fields.

For example, computer technology in virtual reality includes not only terminal servers, but also dynamic environment modeling technology, real-time three-dimensional graphics generation technology, stereoscopic display and sensor technology, application system development tools and other things.

It's actually quite difficult to push the technology forward on your own.

In fact, science has developed to the point where it is today, and in most fields, breakthroughs and progress in science and technology are basically promoted by a large number of scientific researchers.

Except for the relatively special field of mathematics, where you can occasionally see a few 'withdrawn' talents who can make some great results on their own, other fields are basically carried out in a cooperative way.

Although Xu Xiao was recommended to take the road of virtual reality, Xu Chuan did not think that Xu Xiao could solve this problem.

Even if her talent is not bad, it is already very good to be able to make some achievements on this road.

In order to advance on this road to a field that no one has set foot in, it requires not only the talent and efforts of scientific researchers, but also a lot of money and investment.

Following Xu Xiao all the way through the tree-lined path, the two came all the way to another experimental building.

After passing through the curfew, Xu Chuan curiously looked at the decoration and configuration of this experimental building, the walls were painted white, and he needed to wear shoe covers and masks after entering, which looked a bit like a hospital.

Pushing open the door of the laboratory, Xu Xiao led Xu Chuan into the laboratory.

In the room, a man and a woman are two students who look a few years older than Xu Xiao? Or maybe the researcher noticed the movement and turned his head to look at it.

"Xiaoxiao is here, no class today?"

After seeing Xu Xiao, the girl said hello casually, and when she was about to turn around and go back to continue her work, her eyes fell on Xu Chuan, who walked in with Xu Xiao, and a surprised expression suddenly appeared on her face, and then she became excited.

"Chuan, Chuanjin??"

shouted suddenly, and the girl immediately reacted, blushing and hurriedly changing her words: "Academician Xu." ”

On the other side of the laboratory, the boy walked forward quickly and said excitedly, "You are. Xu Xiao's brother. That Academician Xu? ”

Looking at the excited and enthusiastic researcher in front of him, Xu Chuan nodded with a smile and responded, "It's me." ”

"Big guy!"

Hearing this accurate answer, the researcher suddenly howled, enthusiastically stretched out his hand and shook Xu Chuan, and then said quickly: "Big guy, please sit down, please sit down, what do you drink, big guy?" ”

asked, and then he reported a series of drink names as if reporting the name of the dish, "We have tea, coffee, Red Bull, Coke, Sprite, Wang Laoji, Wahaha guy, which one do you want?" ”

Somewhat uncomfortable by this guy's enthusiasm, Xu Chuan coughed lightly and said with a smile: "Cough, just have a cup of tea." ”

"Don't be so polite, I just came over to see Xu Xiao."

On the other side, the female researcher had already pulled Xu Xiao and whispered: "Xiaoxiao, why didn't you say it in advance when your brother came?" ”

Xu Xiao shrugged his shoulders and said, "He attacked suddenly, and I don't know." ”

Female Researcher: "."

Well, it's worthy of being a sister.

"By the way, Senior Sister Zhou, what about the bioelectrode chip and experimental data we made last time? Where is it? My brother wants to see it. Xu Xiao asked quickly.

"It's kept over there, go get it yourself." The senior sister surnamed Zhou pursed her lips and pointed to the storage cabinet on the other side of the laboratory.

Xu Xiao nodded, walked over quickly, opened the cabinet and took out an item with a shape somewhat similar to a motorcycle helmet.

It's very simple, made of an unknown milky white material to form the whole bracket, there are some tightly attached wires on the bracket, and there are a dozen small silver-white patches, and a long data cable.

"Brother, this is a little improved product made for the bioelectrode chip, which can sense the signal of brain waves by wearing it externally without implanting it in the scalp."

"As for the previous kind of nerve signals input into the organism through bioelectrodes to complete complex information transmission, it also needs to be surgically implanted into the chip."

"Would you like to try this first?"

Taking over this strange-looking product from Xu Xiao's hand, Xu Chuan looked at it carefully and asked, "How is this used?" ”

Xu Xiao explained: "Just put it on your head and stick these electrodes on your scalp, forehead and temples on both sides. ”

"However, there is still a big problem with the sensitivity of the product in the external wear test, and a specific room to eliminate interference is needed to do the experiment. Moreover, the clarity and performance of neural signal sensing and reception are much lower than those of implantable bioelectrodes. ”

"But it's enough for you to experience it."

Xu Chuan nodded and said, "Then I'll try." ”

Xu Xiao nodded, and just as he was about to start, Zheng Hai, who had been invisible for a long time, appeared.

"Ahem, Professor, if I'm going to do an experiment, can I come?"

Seeing that the person he protected was about to follow his sister to the laboratory, Zheng Hai sighed in his heart, and quickly stood up and took the experimental product from Xu Chuan's hand.

This guy really doesn't take his safety seriously.

Although it is impossible for Xu Xiao to harm his brother, it is unknown whether this kind of laboratory product will cause harm to the human body.

Especially this kind of product that is worn on the head and has something to do with the brain, if something accidentally goes wrong, it will be over.

The previous little cold in front of him has attracted the attention of the top level, and if there is brain damage or something due to some experiments, he doesn't know what kind of anger will erupt from above.

And if something happens, even if he is shot 10,000 times, he will not be able to escape the blame and cannot be compensated.

"Uh, Brother Zheng, this experimental product has been rigorously tested and will not cause damage to the human body, I have worn it before."

Seeing Zheng Hai snatching the experimental product, Xu Xiao opened his mouth to explain.

Zheng Hai: "I'm sorry, although I understand, but this is my job, and I hope you can support it." ”

Xu Xiao glanced up at his brother, Xu Chuan shrugged his shoulders and said, "Since that's the case, let Zheng Hai come." ”

Although he really wanted to try it out and experience what it was like to wear that helmet, he could understand Zheng Hai's responsibility.

Xu Xiao nodded and said, "Then Brother Zheng come with me." ”

Zheng Hai nodded, and followed him into another side room of the laboratory.

The side chamber is large and divided into two parts, one part of which is a room separated by walls and clear glass, a bit like a CT room.

Outside, there are computer equipment and various instruments.

Xu Chuan also followed, watching Zheng Hai cover his head with a helmet and electrode patch under Xu Chuan's guidance.

On the other side, after connecting the data cable of the helmet to the computer, Xu Xiao's skillfully controlled the program and began the debugging work.

Xu Chuan watched from the sidelines, and after a while, on the display screen, a special software that seemed to record information was opened, and the lines that zigzagled and fluctuated like an electrocardiogram crossed the software. There is not only one line, there are thick and thin, the color is different, and the amplitude of the beating is completely different.

Looking at the beating lines on it, he said curiously, "What are these?" ”

Xu Xiaotou replied without replying: "Some basic characteristics of EEG include cycle frequency, amplitude, phase, rhythm, baseline, amplitude modulation, background and other things. ”

"We call these ERPs, also known as event-dependent potentials. That is, when a specific external stimulus acts on the sensory system or a certain part of the brain, when the stimulus is given or withdrawn, or when a certain psychological factor appears, the potential changes in the brain area. ”

"It's complicated to explain, but the potential changes in the biological brain waves can be recorded through electrodes placed on the scalp and separated from the EEG in a way that is filtered and superimposed by signal."

"For humans, its potential change is a time-related brain electrical activity related to human physical or mental activities, which is a non-damaging brain cognitive imaging technology."

"It is also possible to control external equipment through this technology."

After dealing with the debugging work in hand, Xu Xiao raised his head and said to Zheng Hai in the compartment: "Brother Zheng, did you see the drone on the table in the distance in front of you?" ”

In the compartment, Zheng Hai nodded, and Xu Xiao continued: "Close your eyes and imagine in your mind that you can control that drone, let it turn on the power, rise, and fly back and forth, left and right. ”

Listening to Xu Xiao's words, Xu Chuan looked at the compartment with interest.

About three meters in front of Zheng Haiduan, there was a silver-white drone, which was quietly parked there.

And with the passage of time, the drone suddenly turned on automatically.

Although no sound could be heard outside, Zheng Hai in the compartment obviously felt the movement, suddenly opened his eyes, and looked at the drone not far away in disbelief.

Then, according to Xu Xiao's command, he closed his eyes again and began to control the flight and movement of the drone.

Immediately afterward, a magical scene appeared in the compartment.

The silver-white drone staggered up, slowly rose into the air, and after two seconds of stagnation, began to fly slowly back and forth, left and right, up and down.

Seeing this scene, the look of interest on Xu Chuan's face became even stronger.

He looked at Xu Xiao curiously and asked, "How did you do this?" ”

Xu Xiao said with a smug smile on his face: "There are too many specific details to tell, and I can't finish it in three days and three nights." ”

"To put it simply, it's about monitoring the electrical activity coming from the brain through those electrodes on the device and passing the signal (or signal interruption) to the computer. The computer then processes the data and converts it into another electronic signal, which is transmitted to the receiver of the aircraft through Wifi, so as to control the flight action of the aircraft. ”

After a pause, she continued: "Actually, the United States was able to control drones through brainwaves a few years ago. ”

"But their approach is completely different from mine, where the technology is executed by translating commands. For example, in the mind to construct the idea of drone start, leaf speed, forward, backward and so on, and then the brainwave device detects these signals, and then separates them separately and commands. ”

"Commands are one-way and can only be passed through the brain to the drone."

"On my side, there is a deeper human-machine cooperation, when the aircraft is running, it can transmit a part of the data observed by the drone back to the computer through external devices such as cameras and sound collectors, and then process it into adapted brain waves through that device, so that part of the picture or sound can be transmitted back to the brain."

"It's like the drone becomes a part of your body, you can control it, and it can give you feedback."

Hearing this, Xu Chuan touched his chin and thought for a moment, and said with interest: "If that's the case, this technology has great potential?" How could Mizuki University give up? ”

According to Xu Xiao, the potential of this technology can be seen by everyone.

Through nerve signals and brain waves, not only can external drones and devices be controlled, but the equipment can also feedback signals back.

This is equivalent to giving people a doppelganger.

It can even be said that if this technology is mature, it will have great potential in many fields, in addition to the initial development of medical fields such as vision and hearing.

For example, remotely controlling robots to enter the deep sea instead of humans to explore, it is completely possible to clearly observe and understand the deep sea that humans have not understood on the sea or even on land.

Even militarily, its potential is unusually enormous.

Just this Mizuki University will give up this project, Xu Chuan can't figure it out.

On the side, Xu Xiao sighed, shook his head and said, "It's not like to give up completely, it's just that large-scale investment will not be made for the time being." ”

"Because compared to the way in the United States, this technology is still very immature, and both the output and reception of neural signals are very imperfect."

"The interference of the external device is also very serious, and the device being controlled cannot completely transmit all the signals back from both the feeling and the picture. At the moment, it's only a little bit of a fuzzy feeling."

"What's more, our understanding of the brain is still very shallow."

"Although we have long recognized that the brain can give instructions to control behavior, we do not understand the process of forming instructions, so we cannot read instructions effectively."

"For example, using a mouse and keyboard requires the arm and ten fingers to work together with a reasonable amount of time, position and force to achieve the result we want."

"Although typing is very simple, there are tens of thousands of neurons involved in this process in the brain, and they are spread across different brain regions, and their signals are very complex, and it is not easy to collect relevant signals, and their signals are like heavenly books, and it is even more difficult to read."

"With our current capabilities, we can only collect signals from some neurons in specific brain regions at most. And its error will be quite large. ”

After a pause, Xu Xiao continued: "The most important thing is that the long-term use of this technology will form a serious burden on the brain. At present, users who use it for more than 15 minutes will experience dizziness, headache, motion sickness and other conditions. ”

"And this problem, let alone a solution, we can't even find the reason at the moment."

"All of them can only be stopped for a while, and we can find ways to further improve the transmission of nerve signals and the neural signal database."

"And that's not what costs money."

PS: I may take a leave of absence tomorrow, and I have a tumor on my back, almost parallel to the heart, and it has been growing for more than a year, and I didn't care about it because it didn't hurt or itch before, and it didn't grow (at first I thought it was formed by the accumulation of grease pox).

Recently, I found that it has become bigger, and then it starts to hurt when I touch it, and I have to go to the hospital tomorrow to see what the situation is, and then give it a gam.

ε=(ο'*)))) Alas, hopefully nothing.

I'll make up for it after that.