From black technology to super engineering

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

"What's the trouble?"

"Today, Liu Jiequan finished the model of the mechanical leg, and Mo Gu led the staff to perform the operation immediately. As a result, the mouse reacted abnormally."

"Well... what is her guess?"

"Maybe it's the current disorder. I can't tell now. It should be something wrong."

While the two were talking, they arrived at the biology laboratory.

After opening the door, apart from those from Mogu Medical School, Liu Jiequan and Lao Chen's subordinate Cao Gang were there. Both of them were doctoral students who came in last year, and they were the main force for this year's work.

A group of people in white coats were discussing something quietly around the operating table.

"Brother." Ye Ming greeted first, then looked at Mo Gu.

She was the chief surgeon and had been wearing a mask all the time. Seeing Ye Ming coming over at this time, she took off the mask.

"Sister, what's going on?" Ye Ming looked at the strangled mark on her nose, thinking that the operation might take a long time.

"To be specific, after the motor nerve is connected, just move it a little, and the mouse starts to tremble like being shocked by an electric shock." As she spoke, she looked at Liu Jiequan and Cao Gang: "Old Liu and Lao Cao had a discussion, It is said that it may be a circuit design problem, and after the nerve signal is connected, a backflow occurs."

Ye Ming also looked at the two of them.

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

"Can...can you do it again?"

"..." Mo Gu looked at the little white mouse and frowned: "Yes, but only one can be changed—won't you check the circuit design?"

"Okay." Ye Ming looked at the little white mouse tied with gauze on the stage, thought for a while and then nodded.

Although he thinks his circuit design must be fine.

This is the trouble with biological experiments. It’s not like running software. You just run it again without changing a few lines of code at a time. If it’s not ideal, it’s a big deal and come back...

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

But biological experiments... Although there is 3R care, such living experimental animals cannot be used as consumables without restriction.

Not to mention that the surgery itself is tiring.

...

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

"This is the video of the operation just now. Take a look." Gu Qin waited for a few people to discuss for a while before walking over with a notebook: "You can see the reaction of the mouse very intuitively."

"Okay, thank you!"

Ye Ming clicked on the video and saw that the video was two hours long, so he knew that Mo Gu and the others were 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, presumably intending to witness a miracle.

As the video played, Ye Ming also saw these people chatting easily from the beginning to the nervous silence at the end, and finally the little white mouse trembling violently...

"It's just a power outage." Ye Ming paused the video.

"Are you sure?" Liu Jiequan asked, and he smiled as he spoke, "Although I also think it's an electric shock."

Ye Ming smiled and nodded: "I'm sure... because I was beaten by electricity when I was a child, just 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? Is it burned?"

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

"Um……"

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 been chipped, it is still a "big lump", and even because of the addition of electrodes, this lump is even more numerous.

The second part is the signal conversion circuit, which is composed of a PCB board and several chips. 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. The four robotic arms are one size smaller than the one he designed before, completely simulating the leg joints of a mouse. At this time, they are skillfully fixed by Liu Jiequan on a plastic cylinder the size of a wax gourd.

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

"I'll try it out with a multimeter."

An hour later, Ye Ming returned to his office with the big circuit in his arms.

It stands to reason that the solution to the problem of not being able to find the BUG is to copy another set to be the most effective.

But how do you say that?

They are already ready to witness a miracle, how could Ye Ming give up just like that...

Others, on the other hand, were extremely calm.

After all, how can there be such a smooth sailing for a national key project?

Besides, their progress is already amazing.

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

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

...

8pm.

Mo Gu came to Ye Ming's desk holding the USB flash drive.

The strangle marks on her nose were long gone, and from her appearance, it seemed that she had already showered, washed her hair, and even changed her clothes—this is the posture of going out on a date!

"Are you sure you can simulate?" She looked at Ye Ming suspiciously.

Ye Ming chuckled: "Of course——Sister Mo, are you going on a date?"

Mo Gu immediately rolled his eyes: "A date? Are you asking me out?"

"Uh... well, I'll ask you out." Ye Ming took the USB flash drive: "I'll ask you to witness a miracle."

"..."

"By the way, does your USB drive have a virus?"

"Your USB flash drive has a virus. Your sister and my USB flash drive are very clean, except for the data." Mo Gu sat down on the sofa as he spoke, and looked at Ye Ming's robotic arm on the desk—oh no, It should be a mechanical leg, or a bionic leg, without blinking eyes: "Let me see what a miracle it is."

"Just wait and see..." Ye Ming inserted the USB drive into the computer.

Very good, no virus reported.

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

"It's started!"

Mo Gu raised Erlang's legs, rested his chin with his hands, and glanced at Ye Ming with a smile.

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

Ye Ming clicked the mouse, and immediately after that, a bionic leg on the desk kicked up continuously.

"Fuck!"

"Haha! Come again!"

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

"Perfect!" Ye Ming laughed with his waist in his arms.

Mo Gu got up instantly: "Let's go! Go to the operating table! I don't believe it!"

...

As everyone gathered around the operating table again, Mo Gu put on his gloves again, rolled up his sleeves, and picked up the scalpel.

The rest stayed away.

"Even if it succeeds today, it is only the first step. It can only mean that exoskeleton assistance can be realized by connecting nerves."

Ye Ming, Liu Jiequan, Cao Gang, Gu Qin, and Sheng Fei who came after hearing the news sat at the door with a small bench.

Ye Ming glanced back, and whispered: "Neural connection is in the medical field, and has nothing to do with us. What we are going to smash is the brain-computer exoskeleton."

Everyone nodded in unison.

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

"Well, the nerve itself has self-recovery properties. Mogu and the others have already tested it, and the paper is ready to be published."

"Damn, move so fast!"

"Yeah, so we have to speed up. When our chips are produced in the next stage, we will use large mammals and hydrogels at the same time."

Sheng Fei nodded his head like a chicken pecking at rice.

Although the molecular formula and the preparation method are all from Ye Ming, the insulating hydrogel material is his subject, and he is doing the actual work, and he is also writing the thesis... In any case, he will share a cup of the thesis. .

However, because the material of Ye Di is too special, it will take some time for the National Chip Fab, so it will not be announced for a while. But this material paper will be published early and late, and will be published sooner or later.

Sheng Fei already has a Ph. D., he is no longer a rookie in scientific research, 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 life-release robot arm replace the limbs, so now we have two plans."

Ye Ming looked at the four bionic legs suspended in the air on the operating table: "Either add an automatic stabilization system and let the system cooperate with biological signals to complete the stabilization, or add a feedback system to simulate biological signals and let the brain act according to the feedback. The flexibility of the arm makes the finger complete a full match."

The rest nodded again.

"In addition to motor nerves, there are also optic nerves, auditory nerves... In short, all neurological fields must be used!"

Time passed quietly.

As Gu Qin wiped off the sweat for Mo Gu, Ye Ming also switched on the drive circuit.

"It's ok." Mo Gu stared at the microscope and said in a deep voice: "Then the postoperative treatment."

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

"wake."

When everyone heard it, her voice trembled a little.

After a while, one of the bionic legs suspended in the air moved slightly.

Immediately afterwards, all the bionic legs moved.

"Done!"

She pulled off her mask and jumped up instantly.

...

...

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

Frankly speaking, if you just look at the phenomenon of moving the mechanical legs of mice with severed nerves, this is actually a result that has been accomplished for several years.

But it depends...how it's done.

You can also drive into town with a tractor.

But how does it compare with a car?

This is the first time that the medical field has realized the application of GTRGD materials in brain-computer integration.

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

In other words, in theory, it is possible to achieve a non-destructive connection to the nerve.

——To give an inappropriate example, if the human nerve is compared to a cable wrapped in insulating rubber, then the GTRGD material can peel off the insulating rubber, and then connect another wire to complete the connection of the circuit. One drag two design!

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

The brain-computer chip also has an unlimited market.