Ye Ming turned around and walked behind the screen, took out a white coat and followed Gu Qin to the third floor while putting it on.

"What's the trouble?"

"Today, Liu Jiequan got the mechanical leg model over there, and Mogu took someone to operate immediately, and the mouse reacted very abnormally."

"Hmm...... What is her guess? ”

"Maybe it's an electrical disorder, I can't tell now, it should be something wrong."

While the two were talking, they went to the biological laboratory.

After pushing open the door, I saw that in addition to the Mogu Medical College, Liu Jiequan and Cao Gang under Lao Chen were all there, both of whom were doctoral students who came in last year, and they were the main force of this year's work.

A group of people in white coats whispered something around the operating table.

"Senior brother." Ye Ming said hello first, and then looked at Mogu.

She was the chief surgeon and had been wearing a mask, and when she saw Ye Ming coming, she took off her mask.

"Sister, what's going on?" Ye Ming looked at the strangled mark on her nose and thought to himself that this operation would probably take a long time.

"Specifically, after connecting the motor nerves, after only one movement, the mouse began to tremble like an electric shock." Saying that, she looked at Liu Jiequan and Cao Gang: "Lao Liu and Lao Cao discussed it and said that it might be a circuit design problem, and after the nerve signal was connected, there was reflux. ”

Ye Ming also looked at the two.

One of these two people is engaged in AI, and the other is engaged in information technology, but they have both obtained doctorates and are obviously familiar with circuit problems.

"This ...... Can you do it again? ”

"......" Mo Gu looked at the mouse and frowned: "Yes, but you can only change it - don't you check the circuit design?" ”

"Okay." Ye Ming looked at the guinea pig tied with gauze on the stage, thought about it and nodded.

Although he thinks that his circuit design is definitely fine.

This is the trouble of biological experiments, it is not like running software, you don't change a few lines of code at a time and run it again, if it is not ideal, it is a big deal......

It's nothing more than looking for bugs, and it's nothing more than time.

But biological experiments ...... Although it is said that there is 3R care, for this living laboratory animal, it cannot be used as a consumable indefinitely.

Not to mention the fact that the surgery itself is tiring.

……

Here, Mogu and the others went to rest, and Ye Ming took the circuit and model and pulled Liu Jiequan and the others to have a small meeting next door.

"Here's the video of the operation just now, take a look." Gu Qin waited until a few people discussed for a while before coming over with a notebook: "You can intuitively see the reaction of the guinea pig." ”

"Okay, thank you!"

Ye Ming clicked on the video and saw that the video was two hours long, so he knew that Mogu and they were very well prepared this time, and they probably wanted to launch a sprint......

Sure enough, in the video, Liu Jiequan and the others were there from the beginning, probably planning to witness the miracle.

As the video played, Ye Ming also saw these people chatting easily at the beginning, to being nervous and silent at the end, and then to the violent trembling of the guinea pig at the end......

"It's just overpowered." Ye Ming pauses the video.

"Are you sure?" Liu Jiequan asked, and he smiled as he spoke: "Although I also think it's overpowered." ”

Ye Ming smiled and nodded: "I'm sure...... Because I was electrocuted when I was a kid, and it was exactly like this. ”

Everyone: "......"

After laughing, Ye Ming picked up the line and looked at it carefully, and sniffed it again.

"Has the chip been checked? Did it burn down? ”

"I didn't smell it, I hit it with a multimeter just now, and it didn't seem to break through."

"Hmmm......"

Ye Ming looked at the mechanical part again.

This circuit is divided into three parts, the first part is the GTRGD drive circuit part, because it has not yet completed the chip, so it is still a "big lump", and even because of the addition of electrodes, this lump is even more.

The second part is the signal conversion circuit, which is composed of a PCB board and several chips, and the core is a single-chip microcomputer to complete the translation and conversion of neural signals.

The last part is the mechanical part.

This was designed by Ye Ming himself, and the four robotic arms were one size smaller than his previous design, completely simulating the leg joints of a guinea pig, and at this time they were cleverly fixed to a plastic cylinder the size of a winter melon by Liu Jiequan.

The idea of the experiment is that once the nerve connection is completed, as long as the mouse "wants" to move, the robotic arms can move.

"I'll try it with a multimeter."

An hour later, Ye Ming returned to his office with this large piece of circuit.

It stands to reason that this kind of problem of not finding the BUG is the most effective way to solve it is to copy another set.

Ranwen

But what does that mean?

They are all ready to witness the miracle, how can Ye Ming be willing to give up......

Others, on the other hand, behaved unusually steadily.

After all, how can it be so smooth sailing for a national key project?

Besides, their progress has been phenomenal.

Back in the office, Ye Ming rummaged through the drawers for a while, and finally found the Yinta brand super multimeter he made in the corner last summer.

After letting Yin Ta intervene, Ye Ming quickly found the problem, and there was a section on the back of the PCB that should be connected to the diode that was directly connected.

……

8 p.m.

Mo Gu pinched the USB drive and came to Ye Ming's desk.

The strangulation marks on her nose are long gone, and looking at her appearance, it seems that she has already taken a shower, washed her hair, and even changed her clothes - this is a posture to go out on a date!

"Are you sure you can simulate?" She looked at Ye Ming with a puzzled expression.

Ye Ming smiled: "Of course-Sister Mo, are you going on a date?" ”

Mo Gu suddenly rolled his eyes: "Dating? You're dating me? ”

"Uh...... Well, I'll make an appointment with you. Ye Ming took the USB drive: "I ask you to witness the miracle." ”

“……”

"By the way, do you have a virus on the USB drive?"

"You only have a virus on the USB drive, and your sister and I are very innocent in the USB drive, except that data is data." Mo Gu said and sat on the sofa, looking at Ye Ming's mechanical arm on the desk—oh no, it should be a mechanical leg, or a simulated leg, and his eyes didn't blink: "I'll see if there is any miracle." ”

"You wait and see......" Ye Ming plugged the USB drive into the computer.

Very good, no virus reported.

Subsequently, he proposed all the neural signal data collected by Mogu and the others in the past six months, and then connected it directly to the signal conversion module through the wire, bypassing the material chip part.

"Here we go!"

Mo Gu cocked Erlang's legs, supported his chin with his hand, and glanced at Ye Ming with a smile.

"Hey, you don't believe ......"

Ye Ming clicked the mouse, and then, one of the legs on the desk kicked up continuously.

"it!"

"Haha! Again! ”

As Ye Ming's words fell, the four legs shook violently at the same time!

"Perfect!" Ye Ming stuck his waist and laughed.

Mogu got up instantly: "Let's go!" Get on the operating table! The old lady still doesn't believe it! ”

……

As everyone gathered at the operating table again, Mogu also put on his gloves again, rolled up his sleeves, and picked up the scalpel.

The rest stayed far away.

"Even if we succeed today, it is only the first step, and it can only mean that exoskeleton assistance can be achieved by connecting nerves."

Ye Ming, Liu Jiequan, Cao Gang, Gu Qin, and Sheng Fei, who came to hear the news, pulled a small bench and sat at the door.

Ye Ming glanced back and whispered: "Neural connections are in the medical category, and they have nothing to do with us, what we want to die of is the brain-computer exoskeleton." ”

Everyone nodded in unison.

"But it also involves how to complete brain-computer collaboration without destroying nerves." Sheng Fei's biological theory is much more solid, he looked up at the operating table, and whispered: "It's still inseparable from medicine." ”

"Well, the nerves themselves are self-recovering, Mogu and they have already tested it, and the papers are ready to be sent."

"Damn, it's so fast!"

"Yes, so we have to speed it up, and when we get the chip out in the next stage, we will use large mammals and use hydrogels at the same time."

Sheng Fei nodded his head like a chicken pecking rice.

Although the molecular formula and preparation method are all from Ye Ming, insulating hydrogel materials are his topic, and he is doing the actual work, and he is also writing the paper...... No matter how you say it, you have to share a piece of the paper when it comes out.

It's just that because the material of Ye Di is too special, it will take a little time for the Guoxin wafer factory to be released for a while. But this material paper will be sent early and late, and it will be sent sooner or later.

Sheng Fei is already a fourth-year Ph.D., he is not a newcomer to scientific research for a long time, he has the mentality, and he can afford to wait.

"And then, in the next experiment, we can't just support four legs - because our fundamental purpose is to let the release robotic arm replace the limbs, so now it's two squares."

Ye Ming looked at the four imitation legs that were suspended in the air on the operating table: "Either add an automatic stabilization system and let the system cooperate with biological signals to complete stabilization, or add a feedback system to simulate biological signals, so that the brain can complete a comprehensive match with the flexibility of an arm and a finger according to the feedback." ”

The rest nodded again.

"In addition to the motor nerves, there are also optic nerves, auditory nerves...... In short, all neurological areas should be on! ”

Time passed quietly.

As Gu Qin wiped away the beads of sweat for Mogu, Ye Ming also connected the drive circuit on the side.

"That's it." Mo Gu stared at the microscope and said in a deep voice, "Then deal with the postoperative treatment." ”

After wrapping gauze around the mouse's wound, she let out a long breath.

"Wake up."

When everyone heard it, her voice trembled a little.

After a moment, I saw one of the legs suspended in the air move slightly.

Immediately afterward, all the legs of the imitation moved.

"That's it!"

She pulled down her mask and jumped up instantly.

……

……

The news that the joint research group had completed the first phase of the project soon spread throughout the academic circle, like a stone thrown into a calm lake, and soon set off wave after wave of discussion.

Frankly speaking, if you look at the phenomenon of making a mouse with a severed nerve move a mechanical leg, it is actually the result of several years of completion.

But it depends...... How it works.

You can drive into town with a tractor.

But how does it compare to a car?

This is the first time that GTRGD materials have been applied to brain-computer integration in the medical community.

As Ye Ming proposed in the discussion, the biggest advantage of GTRGD, a neural material, is non-destructive fusion.

That is, theoretically, it is possible to make a lossless connection to the nerves.

——An inappropriate example is that if the human nerve is compared to a cable wrapped in insulating rubber, then the GTRGD material can be used to remove the insulating rubber and then connect another wire to complete the one-to-two design of the circuit!

This really means that in the field of brain-computer, there are infinite possibilities.

The brain-computer chip also has an unlimited market.