I can extract side effects.

Chapter 600 Bionic Manipulator

Just when Xue Shen was fascinated by studying in front of the computer.

At the same location on the fourth floor, Wang Dali was also lying in front of the computer, fascinated by the information on the screen.

"Wow, the robotic arm of this surgical robot is really dexterous."

"It's just like a real person's arm, no, it's more flexible than a human's arm."

"It even uses some animal limb biomimicry, so it can achieve such outrageous manipulations."

"After learning the principles, I can apply it to the bionic manipulator in the brain-computer interface project, bringing more realistic hands to patients."

Thinking of this, Wang Dali couldn't help but fell into deep thought, and his brain began to work rapidly.

"The manipulator I made before is not perfect enough. I can only make some rough movements, such as pressing, pinching things with two fingers, etc. There is still some distance from some fine operations."

"The structure of the human hand is very complex. There are 27 bones and 19 joints in the hand alone. The stability of the hand joints is provided by ligaments and joint capsules, which together form the structure of the entire hand."

"In addition, there are 28 muscles that cooperate with bones and joints to complete a series of delicate movements."

"And all these organizational structures are fully controlled by 48 nerves to complete various fine movements closely related to daily life such as grasping, side pinching, releasing, and finger alignment."

"In a day, the hand can perform thousands of flexion and extension, finger alignment and grasping. Such a powerful function supports human beings to use various tools and become the existence at the top of the food chain."

"Well, to complete the daily movements of the hand, these thirteen basic functions must be done."

"Hanging, Lifting, Touching, Pushing, Hitting, Dynamic Manipulation, Ball Grip, Ball Grip, Column Grip, Hook Pull, Two-Finger Pinch, Multi-Finger Pinch, Side Pinch."

"Let's start with the thirteen basic functions. If you can do these, the bionic hand can almost replace the real hand."

It took Wang Dali a full two weeks to roughly draw the mechanical drawings of these thirteen movements. This was done so quickly only by using part of the technology of the surgical robot.

Fortunately, bionic hand technology has been developed for many years. Although low-end products are rampant, it is very easy to find suppliers.

He quickly found several suppliers to make proofs for his drawings.

At the beginning, I created thirteen samples for thirteen movements, and then studied how to make the movements smoother and lighter every day, and then continued to improve the drawings.

He even wears a sensor device for each of his fingers to capture the curve of his hand movements and the strength of each movement.

Due to material and structural problems, the flexibility and strength of the bionic finger are different from real fingers.

For example, if you pick up an egg, ordinary people can pick it up with a single tap, which seems very simple.

But considering that humans learn how to use their fingers from infancy, it is actually quite difficult to complete this step.

The bionic finger not only needs to achieve the force used by the finger, but also installs a force sensor to respond to the force feedback of the egg shell.

If a normal person picks up an egg, if he suddenly loses his mind, he may use too much force and crush the egg.

What's more, the body of steel itself is much stronger than flesh and blood.

With a little force, not to mention crushing an egg, even crushing a glass is easy.

If it cannot be adjusted in real time according to the force feedback, it is easy to touch the egg lightly, and the egg will be smashed directly before the egg is picked up.

Therefore, this requires careful design in terms of force feedback, signal acquisition and recognition, self-adjusting chips, and product materials and structures before the entire product can be formed.

Wang Dali led the newly established robotics laboratory, and a group of people worked hard like chicken blood.

After several months of hard work, finally came up with a bionic manipulator.

It weighs about 450 grams, which is about the same weight as an adult's hand.

It can lift a weight up to 10 kg at a time. It has 12 movable joints and 6 driving degrees of freedom, which can realize the independent movement of 5 fingers and the cooperative operation between fingers.

Not only has intuitive motion control and grasping motion feeling, but also can easily realize more than 20 kinds of gestures such as fisting, clapping, shaking hands, etc.

Daily actions such as holding eggs, twisting bottle caps, and tying shoelaces are no longer difficult problems.

Wang Dali even felt that with a certain level of practice, strenuous sports such as rope skipping and tennis should be no problem.

However, he didn't install a brain-computer interface and could only use a joystick to operate it, so the conclusions he got couldn't be regarded as objective.

For further operations, it still depends on the effect of real people using it.

And that day is coming soon.

******
Sanqing Headquarters, Neuroscience Laboratory.

In the spacious and bright room, there is a strange set of tables and chairs.

Unlike ordinary chairs, this table and chair set looks like a normal dining table divided in half by a wall.

The table is only half, and the chair is only half, and there is a hole in the shoulder of the partition to the left of the chair.

At this time, Zhang Li was sitting quietly on a chair, stuffing her left arm into the hole. No matter which direction she looked at, she looked like a disabled person who lost her left arm.

And the wall-like partition on the left blocked her view well, preventing her from seeing her missing arm.

On the table in front of her, there was a plastic cover separating her from a very realistic bionic arm.

From her gaze, it was easy to think that the arm on the table was her own arm and hand.

Zhang Li's gaze was fixed on the bionic arm.

Chen Yiqing sat across from her, holding a brush in his hand, lightly touched the bionic arm, and asked.

"Do you feel it?"

Zhang Li stared at the bionic arm, nodded slowly, and said, "I feel it."

"Is it the hand in front of you, or your left hand?" Chen Yiqing continued to ask.

Zhang Li frowned, thought for a few seconds, and replied, "The strange thing is, it's the hand in front of me that feels like it's my real hand."

"Next, close your eyes."

Zhang Li obediently closed her eyes.

"Let's move your left hand." Chen Yiqing's deep voice seemed to have a kind of magical power, making people unable to help but do what he said.

The group of people sitting next to them held their breath and stared at the bionic arm on the table together.

The arm was silent for a few seconds, then a finger moved with difficulty.

Soon, the other four fingers moved one after another.

The entire palm began to open and close, and made a void grasping motion.

Like a natural hand.

"Very good, now open your eyes." Chen Yiqing said with a smile, and at the same time took out a white toffee from his pocket.

Zhang Li opened her eyes again, the first time she saw the white big white rabbit toffee, she immediately jumped up.

"toffee!"

Chen Yiqing pinched the toffee with two fingers, and slowly moved towards the bionic arm.

Zhang Li's gaze was still following the toffee, but the bionic hand on the table slowly turned over.

The palm of the hand naturally spread upwards, and the five fingers stretched out, like a budding rosette, waiting for the arrival of toffee.

All this happened unconsciously.

When the toffee falls from the sky and lands on the palm of your hand as you wish.

Accompanied by a cheer, the bionic hand closed instantly with lightning speed, holding the toffee tightly in the palm of the hand.

"The toffee is delicious, peel it off and eat." Chen Yiqing encouraged with a smile.

Zhang Li's right hand, which had been placed under the table, began to move.

Although separated by a plastic board, the movement is not as convenient as usual, but her right hand still perfectly cooperates with the bionic hand.

With one real and one fake hands, they delicately and quickly peeled off the wrapper of the toffee, pinched the round cylinder, and stuffed it into her mouth.

"Well, it's so sweet." Zhang Li showed a satisfied smile.

clap clap clap!
Warm applause resounded throughout the room.

Chen Yiqing also stood up from the chair, and excitedly applauded Zhang Li.

"The bionic arm is very successful, and the control of the brain-computer interface is also very smooth, as smooth as a natural hand, making people unaware of its existence."

"Not only can I precisely control each finger with my mind, make various movements of grabbing things, but also make multiple gestures such as ok, and successfully complete some fine operations such as entering passwords, peeling sugar wrappers, and clenching fists."

"For those paraplegics, with such a bionic hand, they can already regain the ability to take care of themselves through the brain-computer interface, which is one step closer to the distance of normal people."

"Lily, on behalf of the entire team, I would like to express my sincere gratitude to you for your selfless dedication."

Zhang Li chewed the toffee slowly, and nodded with a smile.

But that bionic hand suddenly spread its palm towards everyone.

Afterwards, the index finger was raised up and hooked gently.

This scene instantly made the applause in the room more intense.

There are also bursts of whistles from Wen Renlong in the middle.

******
When Zhu Jun came to Sanqing Headquarters again and looked at everything he was familiar with, a feeling of a world away suddenly came to his mind.

Since becoming a professional e-sports player, the daily training is too busy, and he hasn't been here for a long time.

It wasn't until yesterday that Wang Dali called again, saying that the brain-computer interface project had made new progress, that he hurried over excitedly.

Brother Zhu Ming pushed the wheelchair, and under the leadership of the staff, he was familiar with the road all the way and escorted him to the door of a testing room.

There are several workbenches around the room, with computers and some test equipment on them.

In the middle is a wheelchair. Zhang Li is sitting in the wheelchair with her hands hanging down naturally on the armrests.

When she saw Zhu Jun, she immediately smiled.

Suddenly, the wheelchair started on its own, and slid forward 2 meters smoothly, before arriving in front of Zhu Jun.

Zhu Jun's eyes widened, and he stared at the wheelchair for a long time, but he didn't notice anything unusual.

"I didn't even move my hands, but the wheelchair moved. Is this a wheelchair that can walk on its own?"

While he was muttering in his heart, suddenly, a slender mechanical hand stretched out from behind the wheelchair like a roc spreading its wings, and came in front of him.

Zhang Li smiled and said, "Long time no see, let's shake hands."

Zhu Jun's eyes widened again, staring at the mechanical hand in front of him.

This is a very realistic mechanical arm, the whole body is silver-gray, so the difference from the real hand can be seen at a glance.

But its structure, fingers, and even joints, are exactly the same as the real hand.

If you change to a flesh-colored rubber case, it will definitely be able to confuse the real ones.

Just as Zhu Jun was observing excitedly, his older brother Zhu Ming had already stretched out his hand and grabbed the bionic robotic hand.

With a light grip, the two hands were tightly clenched together, and I couldn't help but feel a lot of emotion.

"This hand feels so real. If I hadn't seen it with my own eyes, I would have thought I was shaking hands with some real person."

With a click, the bionic arm retracted behind the wheelchair.

Zhang Li controlled the wheelchair and turned around in a circle, then moved forward slowly, and returned to the center of the room.

Then he raised his face, looked at Zhu Jun, and asked with a smile.

"Zhu Jun, do you want to try this wheelchair?"

Zhu Jun nodded excitedly: "I can't ask for it."

Zhang Li got off the wheelchair, and the others immediately stepped forward and surrounded Zhu Jun.

Soon, Zhu Jun was hugged carefully by everyone and moved to the new wheelchair.

He looked around curiously, as if seeing a beloved toy, and wanted to understand its purpose as soon as possible.

Chen Yiqing stood beside him and introduced in detail.

"This is a new wheelchair we have created for paralyzed patients. It is controlled through a brain-computer interface and can walk forward, backward, left, and right. I need to test this function on you in a while."

Zhu Jun was overjoyed immediately: "Great, doesn't this mean that I can go out alone, and I don't need my brother to push me around anymore."

"Hehe, that's what I said, but given your physical condition, you still need a guardian. I suggest that your brother go out with you, but he can free his hands, as long as he keeps his eyes on you."

Chen Yiqing smiled and said.

Now Zhu Ming is happy: "Okay, my brother can control the wheelchair to walk by himself. I am too happy. Now I don't need to push the wheelchair, and my mother can take him out."

"In addition to this function, a bionic robotic arm is installed on the back of the wheelchair, which can complete some daily hand movements under the control of the brain-computer interface."

Chen Yiqing coughed lightly, announcing the big news.

"Wow, that's awesome." Zhu Jun was already so excited that he couldn't speak coherently.

"Now I don't have to bother my family anymore, and I can take good care of myself."

"Okay, let's get on the plane and try." Wen Renlong stood aside and couldn't help urging.

Zhu Jun restrained his excitement and connected the brain-computer interface to the controller of the wheelchair.

"Next, what should I do?" After completing the preparations, he looked at Chen Yiqing.

Chen Yiqing said patiently: "Imagine putting your hands on the controller of the wheelchair, controlling it to turn left, turn right, go forward, go back, and then stop."

"Yeah." Zhu Jun closed his eyes.

As time passed, his brows gradually wrinkled.

Everyone didn't make a sound, so as not to put pressure on him, but waited quietly.

After a while, the wheelchair moved slightly and slid forward.

Zhu Jun opened his eyes, his face was flushed, and he shouted, "Did you see it? It moved, and I felt it move, right?"

Chen Yiqing smiled and said: "I see, well done, keep going!"

In this way, the wheelchair moved smoothly in the room under Zhu Jun's control.

Front, back, left, right, every direction is free to move.

He even avoided the crowd precisely.

Fortunately, the room had enough space. After some tests, Chen Yiqing was very satisfied.

He took out a red balloon from the cabinet, pinched the string that tied the balloon, and handed it to Zhu Jun.

"Okay, try the bionic hand, have you seen the balloon in my hand?"

"This is a balloon I bought when I took my daughter out to play last night. I wanted to do an experiment today, so I brought it here."

"Come on, use the bionic hand to crush it."

"Okay," Zhu Jun frowned again: "I pinch, I pinch, I pinch..."

He muttered and shook his head, a silver-gray bionic arm slowly emerged behind him.

Like the wings of an angel, the arms rise slowly and stretch out.

Then, he spread his five fingers and pinched towards the balloon.

There was a loud "bang".

The balloon popped instantly.

(End of this chapter)