Is there something wrong?
Zhang Yuan opened his tablet and began to study it earnestly.
Having studied mathematics for so long, perhaps he could delve into his father's article, incorporate his own ideas, and organize it into a research paper.
The function he wanted to achieve with the full-body motion mapping robot was for a human to perform an action, and for the robot to perform an almost identical one, similar to the robotic arm Ye Kaifu had just used.
Do not underestimate this function; it is the foundation and prerequisite for "powered exoskeletons"!
Powered exoskeletons, also known as power armor, are currently a major research hotspot.
They are not just weapons of war; they can also be used for civilian purposes, such as directly replacing spacesuits.
Due to the rapid development of nanomaterials, spacesuits are trending toward being simpler and lighter. But one thing is unavoidable: no matter what, a spacesuit must carry a large oxygen tank, as well as numerous life-support and communication systems.
Space is dangerous; whether it is a leak or hypothermia, any slight error can cost a life. These life-support systems must be carried; not a single one can be omitted.
Therefore, scientists have envisioned simply using "power armor," a bulkier piece of equipment, to replace the spacesuit. After all, with power armor, one doesn't have to worry about carrying too much, and it is safer and more reliable. Thick armor wouldn't be bothered even if hit by high-speed space debris.
Beyond replacing spacesuits, power armor can be connected to humans via VR equipment, allowing it to perform dangerous and difficult tasks in place of a person. Humans only need to control it remotely, eliminating the risk to their own lives.
It is easy to say but difficult to do. Research into powered exoskeletons has been ongoing for a decade and is still in the experimental stage.
The main reason is still... the technology is not mature enough.
To give a simple example, holding a balloon in one hand and shaking it rapidly up, down, left, and right is an extremely simple action for a human.
But for a robot, it is undoubtedly as difficult as ascending to heaven!
Why? Robots lack self-awareness; they have no idea how much force they are exerting, nor do they know how they should be shaking. All of this must be solved using mathematics.
No matter how sensitive a sensor is, it cannot be as functionally comprehensive as human skin. To hold a balloon, one must first adjust the synergistic pressure of the mechanical hand; the force cannot be too great or too small, otherwise, it will simply pop. Shaking it at high speed is even more difficult.
It is said that 10 years ago, a small company invented a patent for rapid pressure measurement—the "MIA Pressure Sensing System"—which is the leather glove Ye Kaifu used. The patent royalties alone earn them hundreds of millions a year.
Of course, besides synergistic pressure, there are many, many more difficulties, such as joint driving force, body balance, control algorithms, and so on. Such a complex project, with all its hardware and software, often involving millions of lines of code, is not something Zhang Yuan can handle alone.
Therefore, he only wanted to solve one of the more critical problems and write it into a paper or patent. If it could generate revenue for the foundation, that would be even better.
"Come on, let's write a paper!"
No sooner said than done, a line of small text appeared on the screen.
<A Kinematic Analysis Theory for High-Degree-of-Freedom Robots Based on Geometric Group Theory and Topology>...
The more he researched, the more profound and complex he found the ideas within.
His father's idea mainly focused on the complex kinematics of a "27-degree-of-freedom" mechanical hand, containing knowledge of group theory, topology, and some hypercomplex numbers, which looked quite strenuous.
Even if he understood the inspiration behind it, it didn't mean the entire paper could be produced smoothly.
His father only provided a general direction; the vast amount of blank space afterward still had to be filled by Zhang Yuan.
Writing a paper is a painful process, like squeezing water from a sponge; there are a massive number of details to handle, and it is not easy to fully express the inspiration.
Zhang Yuan's brain operated at high speed, entering a state of deep focus. He tried to clarify the entire train of thought, but was soon blocked by a multitude of detailed problems.
Sometimes it is just like this; many problems that seem "obvious" become stumbling blocks when writing a paper, becoming very "non-obvious."
Zhang Yuan let out a deep sigh.
"Kinematics with this many degrees of freedom, plus strange algorithms—with my current ability, I can only understand it; I really have no way to independently propose it. I wonder how my father came up with this..."
"Right, Ye Kaifu, can you let me see your control program?"
"What program?" Ye Kaifu turned his head.
"The one for that mechanical hand."
"Oh, sure, no problem. I'm not actually very proficient at this kind of programming; I'm just self-taught..." Ye Kaifu said very cautiously.
Saying he wasn't very proficient was actually a humble way of putting it.
Being able to write the relevant program was already much more impressive than a typical undergraduate!
Ye Kaifu looked at Zhang Yuan with a bit of competitive spirit, wanting to know exactly what level this new roommate was at.
Young people always have a sense of rivalry, especially these astronauts from all over the world, who are likely to be quite outstanding.
Soon, the relevant program was sent to Zhang Yuan's computer.
Zhang Yuan pinched the bridge of his nose, looking at the code.
How should he put it? Ye Kaifu was indeed a layman, and his programming habits were not very good...
Not to mention the lack of comments in the code, the names of various variables and functions were actually "a," "b," "c," and "d," which left people completely confused.
The downside of doing this is that if enough time passes, even the programmer himself might forget what his code is doing.
However, the algorithmic content inside was much simpler than the ideas his father had proposed.
Soon, he analyzed the general approach.
The entire leather glove was a very sensitive pressure sensor; changes in the human fingers would cause the pressure in the leather glove to change. Thus, by processing this data through a certain algorithm, the specific direction of the finger's movement could be derived.
"And then, by transmitting the movement direction to the mechanical hand, it can be made to follow the movement."
This idea was very intuitive and did not rely on particularly sophisticated mathematical modeling; it mainly relied on the built-in functions of the "MIA Pressure Sensing System."
If judged by true scientific research standards, it was merely at an "ordinary" level.
Of course, Ye Kaifu was only an undergraduate, so one couldn't expect too much; no one expected an undergraduate to produce earth-shattering work.
Zhang Yuan thought it over carefully, analyzing a large number of areas that could be improved.
"Buddy, is there something wrong?" Seeing the rich expressions on Zhang Yuan's face—alternating between deep contemplation and furrowed brows—Ye Kaifu couldn't help but ask with concern.
In his heart, however, he muttered, could you really have understood the entire algorithm in such a short time?
That shouldn't be possible; it took me ages to come up with it, after all...
At the very least, my ex-girlfriend and her male best friend definitely wouldn't be able to understand it.
"Ah, it's nothing, it's just that in some places..." Zhang Yuan turned back, and upon seeing that Ye Kaifu didn't look displeased, he continued, "...I have some different opinions, don't mind me."
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