In March, An Feng changed the direction of his work.

Head of R&D at Robotics Company, Colin Robotics. Hoffman obviously did not disappoint him, in just a few months, the second generation of exoskeletons has already taken shape, although there is still a gap from the close-fitting lightness required by An Feng, but after all, that is the task of the third generation, and now the second generation is the main focus.

Hoffman's work is concentrated in the upper limb part, according to An Feng's plan, this is 50% of the overall work, the beginning is the most difficult, I thought it would take half a year, but this silent guy has repeatedly refreshed An Feng's understanding of human genius - this guy's brain is too good!

Even if An Feng did it himself, he didn't have the patience to test it dozens or hundreds of times.

Hoffman, on the other hand, enjoyed the process.

If he was like a normal person in terms of life, it would be very pleasant, but unfortunately things can't be perfect, except for professional content, Hoffman is a super long neural reflex arc, stuffy gourd and nerd who doesn't understand life.

In order to speed up the research and development, Anfeng joined the research work. To his credit, this is one of the few times he has been willing to take the initiative to get involved.

Unlike the graphene and cancer cells in front of him, it is his ideal to have a set of exoskeletons and several robot pets that are familiar with human nature. When other things stabilized, he became a standard office worker, sending his wife to school every day, going to work at nine o'clock and returning home at three o'clock in the afternoon...... Repeat this for two weeks.

In addition to exoskeletons, the company has also set up bionic machines, pet machines, flying machines and other research groups, although the speed of exoskeletons is the fastest, but other groups in Anfeng's advice or guidance, the progress is not slow. Recently he received a new toy: a quadcopter horizontal coaxial aircraft.

It is two palm-sized, has four center-symmetrical rotors, can receive wireless commands, and is loaded with GP Energy's custom-built high-energy battery. It can last up to five hours of flight, and a wide-angle HD camera is mounted underneath, like a fly's compound eye, and can record up to 2TB of video.

The control terminal can be applied to a variety of devices, which is equivalent to a multi-platform APP, which can be used on mobile phones and tablets. The controls are just like playing a game, with a tap of your finger, but it requires a certain amount of bandwidth to accept the video image, and when it is far away from the tower, it can only be reduced to SD video.

An Feng now uses a tablet to control the aircraft, and the content of the tablet shows the scenery outside the robot company - in the air. It's not HD, but the variable focal length is big enough for him to read the text of the road sign, or the license plate number of the vehicle. Switch modes and be able to record at the same time. Take high-definition pictures at the same time.

Click, a car passing by the door of the robot company was photographed, the driver was enjoying picking his nose, his expression was weird, An Feng retched a few times, and deleted the high-definition picture...... Sometimes, these too powerful technologies are not a good thing, and it is beautiful to be able to ignore them.

An Feng controlled the aircraft to fly farther. It has a maneuverable radius of about 3 kilometers and a maximum ceiling of 300 meters. When the aircraft floated to the fifth floor of an office building, it found a girl who was bending over and busy at the office desk, with a standard skirt and uniform and a round buttocks.

"Hey, find the beauty!" An Feng smiled, but unfortunately the disadvantage was that it couldn't make a sound. I can't project text, otherwise I can make fun of the beauty. He put down the tablet and recorded the defects on the side, making sounds and projecting words that were necessary to convey information when it mattered.

It's not the intention to look at beautiful women. After recording the defects, An Feng manipulated the aircraft to turn back.

"The flight speed is still too slow." An Feng muttered, and the camera captured Hoffman scratching his head, and the aircraft shook in front of him to show its existence.

Hoffman looked up, then lowered his head and wrote on the paper, which stood up and said: No sound can be collected, always a half-finished product!

"Bastard!" An Feng scolded with a smile, let the aircraft team know that the results of their hard work were evaluated like this, and see if they would knock you on the stuffy stick with a sack at night.

Hoffman goes on to write: The arm is having trouble with dynamic feedback.

An Feng raised his hand to look at his watch, he was about to get off work, but if he refused, this guy should be entangled all night...... An Feng let the aircraft land, picked up his suit jacket, put it on, ran downstairs, and walked towards the warehouse. The converted warehouse has become the general base for Hoffman and his "army of robots".

The second-generation robotic arm was indeed finished, but there were a bit of problems with the force feedback.

For example, when you shoot a gun, hold the pistol with one hand and fire, the arm will be subjected to a backward force, and if it is a normal state, An Feng's force is enough to offset the recoil and keep the muzzle stable. But when wearing an exoskeleton, the computer mistakes the backward force for a limb movement and responds quickly.

As a result, after firing a shot, the arm movement will make the muzzle of the gun point to the sky, which is very exaggerated.

An Feng and Hoffman currently have to overcome the difficulties, which means that they need to design denser sensors, collect muscle movements, and feed back to the computer thousands of times per second, so that the computer can quickly determine what actions are autonomous and what is involuntary, and then give accurate feedback.

Hoffman said: "I tried all the silicon chips, and the computing speed could keep up, but the energy consumption was too high; Control energy consumption, but not arithmetic. ”

"If the silicon technology doesn't work, let's use the GP's experiment." An Feng said.

Hoffman nodded: "That's a good direction!" ”

Fortunately, they have good congenital conditions, a powerful enough graphene computer, and a sufficient super battery, so they only need to work information feedback, and sooner or later it will be solved...... After several days of research, the newly designed chip was added to the exoskeleton arm, and An Feng wore it again.

In order to reduce weight, the material of the exoskeleton is made of carbon fiber or aerospace alloy as much as possible, which requires lightness and sturdiness. He sat in silence as two technicians fitted him with an exoskeleton arm. Now this exoskeleton is very dexterous, mainly has a set of hydraulic and electronic hybrid power assist system, it is the key to the force, of course, it is also equipped with a power assist system on the small arm and fingers.

The machinery that clings to his right hand alone has more than 20 sets of power assist systems, the largest of which is an exoskeleton that simulates the human triceps and biceps, which has a huge amount of power; The smallest is five fingers, and the extension and flexion of each finger are correspondingly assisted.

This means that no matter what the action, even if it is a nose picking, the amount of effort required is only one-third, or even one-tenth, of the original.

It took ten minutes to install. The system energy is provided by the battery pack behind the back, the battery is not ordinary, it is specially made by GP Energy, the top quality, the market is not available, and it is currently in the top secret state. Its energy is capable of providing more than 30 hours of machine work.

Hoffman took a few steps back and said, "It's time for the actual wear test." ”

An Feng stood up slowly, because he was not fully equipped with an exoskeleton, he felt that the weight was pressed on his right hand, which was actually not too heavy, don't look at it as big, because he was willing to spend money, the total weight was only a little more than three kilograms, An Feng tried to raise his arm. The feedback this time was very sensitive.

"Feeling...... Better than last time, faster feedback. An Feng said that judging by the naked eye alone, it is impossible to distinguish the difference, and only by wearing it can you feel it through subtle changes. An Feng walked a few steps, and the routine was a heavy load, a fifty-kilogram heavy iron box.

This time there was no iron hook, and it relied entirely on five fingers and biceps. Fingers lightly touch the grip. With a little effort, keep your fingers together. With only half the usual strength, it already feels very tight, and if you lift it up - there is no pressure. He shifted his movements, his arms straightened, and he lifted heavy objects flat—a test of the computer's responsiveness, but still fast.

An Feng said breathlessly: "I feel like it's only about ten kilograms." ”

"For more complex movements." Hoffman said.

An Feng's next challenge is: an inflated balloon. Playing with balloons in an exoskeleton is the opposite of usual, and the amount of force fed back by the computer is slightly increased. will pinch and pop balloons, and last time I blew up a dozen ...... An Feng carefully touched the balloon, opened his palm to grab it, and gently picked it up.

An Feng looked at the balloon that remained in its original shape in his hand and breathed a sigh of relief.

"The data is good! More brisk action! Hoffman recorded on the computer. The other researchers had different expressions. After all, there is only one set of templates.

It's the boss's set, because it's tailor-made, the length of the arm and the length of the fingers are Anfeng's data, and others can't wear it, so its success or failure is related to the future of the machine, including whether the millions of research and development expenses are wasted or a grand slam.

An Feng was obviously also confident in this expensive set of arms, he grabbed the balloon and slapped it up - the first time, the balloon easily rose into the air, he changed his backhand action to catch the balloon, the action was sudden, but it still did not explode, he threw it again, and then grabbed it with other very awkward movements...... After doing so more than a dozen times, the most sensitive details were not wrong, and the balloon was still safe and sound in his hand.

I clearly felt that Hoffman was also relieved: "Good! The computer data is within the error value! ”

"Let's take the next test."

The firearms section was specifically requested by Anfeng, and a small underground shooting range was opened for this purpose - because San Jose's regional laws are strict on firearms, they can only do what they are required to keep a low profile. In the underground shooting range, An Feng loaded a Glock pistol.

Raising his hand, the muzzle of the gun is aimed at the target ten meters away, and the gun is fired, until the entire magazine is emptied, and the high-speed camera records his every movement, and the 10,000-frame camera means that it can break up the super slow motion of the bullet coming out of the chamber and spreading the gas and flames around.

In these slow motions, the amplitude of An Feng's arm swing was controlled to a minimum, and the recoil of the gun tried to affect An Feng's movements, but the sensor and the sensitive computer finally worked closely together this time, so that every autonomous action was fed back and the involuntary was ignored.

The researchers' faces were filled with joy, and they knew what it meant.

After An Feng emptied the magazine, he skillfully unloaded the empty magazine and exclaimed: "It's really amazing, I feel that this machine is the same as my own arm, I can't tell whether it is myself or the machine is working, the sensitivity has been greatly improved, and it is already a success!" ”

An Feng has information in his head, so he knows what success is and what is a semi-finished product.

It felt right this time! Then the left arm is made, and then the spine and leg are done - they are much easier than the arm, so the arm occupies 50% of the workload, as long as the difficulty of the arm is overcome, the future work can be inferred, at most it takes a little time.

When fully completed, a beggar's version of Iron Man with bones and no armor will be available. (To be continued......)