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"Boss, would you like to ask for instructions from above?" Xiao Wang, a staff member of the relevant department in a suit and leather shoes, cautiously whispered to Lao Zhang: "These things that Lin Zheng said, this is ...... This...... Isn't that a bit inappropriate? ”

Lao Zhang, who led the team, looked calm, shook his head slowly, and said, "Don't worry, let's take a look first." Pen "Fun" Pavilion www.biquge.info"

Still looking? Xiao Wang was a little anxious, and if he looked at it again, who knew what Lin Zheng, a guy who didn't know the height of the sky, would toss? But here Lao Zhang is the person in charge, although he is a little depressed, he still honestly closes his mouth: as a newcomer who has just joined the work for a year, maintaining respect for old comrades is one of the basic rules of work, and no one will like disobedient little guys.

And at this time, Lin Zheng on the stage had already continued to start......

"Speaking of which, this task is actually a little easier than the others......

As soon as Lin Zheng's words landed, there was another commotion below: Dare to love the things exposed in front of you or simple? Nima, is there any heavenly reason?!

Xiao Wang was even more anxious, and his mouth almost bubbled: I'll wipe it! This Lin Zheng really doesn't have a door, how can he dare to say anything?

If it weren't for the fact that there were so many foreigners at the scene, he couldn't wait to rush up and block Lin Zheng's broken mouth.

Seeing Xiao Wang's anxious appearance like a monkey in a cage, Lao Zhang frowned: Today's young people are really not as good as a stubble, why are they so rough? He scolded in a low voice: "What for? Don't you know when above? ”

Lao Zhang's heavy news smashed Xiao Wang, with a confused face: "Ah? Brother Zhang, what do you mean...... Know above? ”

Pointing to Lin Zheng on the stage, Lao Zhang said: "This activity of theirs has been reported to the above, do you say the above knows?" ”

“……”

Lianchuang Technology has already reported to the above? Xiao Wang was dumbfounded immediately, no matter how stupid he was, he knew that since he had already reported it, it meant that what Lin Zheng said today was allowed by the above, but why would the above allow Lin Zheng to say such an important thing? Xiao Wang couldn't figure it out in his heart.

Of course, there are above considerations, "Lao Zhang is the leader of the team after all, and it is his duty to help newcomers." Seeing Xiao Wang's confused look, he had to explain to him: "It has nothing to do with us what you think above, our job is to keep an eye on the point, don't let people make trouble." Everything else has nothing to do with us, you know? ”

"Understood." Xiao Wang let out a sigh of relief, he really understood, since the above can let Lin Zheng say this, then there must be a reason to allow Lin Zheng to say this. What do you think about above, as long as you do your part, think about it, Xiao Wang said to Lao Zhang with a grateful face: "Brother Zhang, thank you for reminding me." ”

"It's all my own brothers, what's polite," Lao Zhang waved his hand: "Hurry up and watch, see what new things this big boss Lin has tossed out." ”

……………………

"Once you are familiar with and understand the physics problems, physics will tell you which ones are easy to implement and which ones are difficult, as far as our two examples are concerned. The task of transporting this glass of water is simple, and obviously, balancing the pole is difficult, and there is no doubt about this, right? His eyes swept over everyone, and seeing that everyone had no doubts, Lin Zheng continued: "We have all heard that some athletes can still insist on doing some sports despite injury, so a new question arises: when the machine is extremely physically damaged, can they continue to do these actions?" ”

"Common sense tells us. This type of aircraft requires at least four sets of propellers to maintain flight, as these four angles control the rolling, tilting, rocking, and acceleration of the aircraft, and the 6- and 8-axis aircraft have 6 and 8 propellers to provide additional redundancy for the aircraft. But the reason why a quadcopter is more popular is that it has a minimum number of propeller engines that can be kept fixed: four, or...... No? ”

What the?

Today's technical seminar of Lianchuang Technology has surprised everyone more than once, just now everyone thinks that this intelligent drone can balance the pole and the water cup is enough against the sky, but now, listening to the meaning of Lin Zheng's words, it turned out to be artificially after causing damage to the drone. So that this drone can still fly?

Is it possible? There was another commotion in the audience.

Fortunately, everyone learned to be obedient this time, although they were curious, but no one raised their hands to ask questions, and no one interrupted Lin Zheng's words, everyone stared at Lin Zheng's next move with wide eyes, eager to keep every detail of Lin Zheng's movements firmly in their minds.

Next, a scene that made everyone look stupid appeared: Lin Zheng picked up a pair of scissors from the small table on the side, and cut off one blade of each of the four pairs of double-bladed propellers, so that the entire drone originally had 8 blades, and now there are only 4 left.

Doubts rose from everyone's mind: Isn't it? Could it be that they have been destroyed into this bear-like and can still fly?

But it turns out that even if it is destroyed like this, this drone can really fly - although this drone flies crookedly, and its attitude is also in a parallel state, it can really fly, and the altitude of the aircraft is basically very stable.

"it!"

“**！”

“ohmy！”

Everyone was stunned: Nima has become like this, this thing can really fly?!

If you hadn't seen it with your own eyes, who would dare to say to yourself that a flying machine could still fly if it was destroyed like this, he would have spit on him: You just brag about it, but now, the truth is really happening in front of your eyes.

"Based on the mathematical model of the aircraft, we found that it can fly in an unconventional way," he picked up the control stick again in his hand, while controlling the climbing, descending, forward acceleration, and backward acceleration of the aircraft, Lin Zheng said: "We can't control the remote movement of the aircraft, but through algorithms, we can realize the rolling, tilting and acceleration of the aircraft, and the aircraft can still be reconfigured." ”

Controlling the "seriously injured" drone to fall, Lin Zheng continued: "Mathematical models tell us exactly when and why these can be achieved, in this example, scientific knowledge has enabled us to design such a novel mechanical structure, or to design a clever algorithm, that can handle physical damage so elegantly, just like a human athlete, rather than by providing redundant mechanical structures like a flying machine in the general sense now...... How much cost and valuable flight weight have we saved on this alone?

We can't help but hold our breath, and when we watch a diver somersault into the water, but when we watch a pole vaulter twist his body in the air and quickly fall to the ground, we can think, can a diver complete a beautiful entry? Can a pole vaulter pull off a nice landing?

Suppose we want the aircraft to perform a three-week flip here similar to that of a diver, and then stop precisely at the position before it starts to perform the flip, and this process happens so fast that when the aircraft performs it, we can't use the position feedback to make the correct move, for the simple reason that there is not enough time, in fact, the aircraft is blindly performing this action, we can observe how it completes this process, and then use this information to modify the behavior of the aircraft. So the next flip will be a little better, just like a diver and a pole vaulter. It is only through repeated practice that this process can be learned and executed until the highest standards are reached. ”

And then...... As expected, when the other drone, which was not violently destroyed, climbed up, made a heavy tumbling motion in the air for three weeks, and the flight attitude became more and more stable as the action was repeated over and over again, the audience was already numb: the shock was too much, and many people's brains went down directly.

But you think that's the end of it?

It's really tooyoungtoosimple.

"When you master this, how far can the aircraft go? We know that in many sports, concentrating on a moving ball is a necessary skill, and now, this flying machine can do it as easily and effortlessly as an athlete. ”

As soon as Lin Zheng's words fell, someone finally couldn't help it, jumped up and shouted: "This is impossible!" There is simply no flying machine that can do this! ”

Someone jumped out to stir up the situation, and the host hurriedly stood up: "This gentleman, please ......"

"Who is this gentleman?" Lin Zheng frowned; signaled to the host that it was okay, and then asked the brother who jumped out, "This gentleman, may I ask why you said that?" Well, trouble the staff to give this gentleman a microphone. ”

It's said that it's a technical seminar, but I've been saying it since the beginning until now, and there are too many people who have accumulated a lot of problems, and now, it's not much of a problem to break the rules a little.

"I am an American student in China, my name is Steve, and I am also an aeromodel enthusiast," Steve took the microphone and looked at Lin Zheng with an angry face: "With all due respect, Mr. Lin, what you said can't be done at all, because it's just impossible." ”

"It was indeed impossible before," Lin Zheng nodded, not angry at the other party's rudeness, and asked him with a calm face: "But that is only limited to the level of science and technology at that time, if in principle, Mr. Steve, do you think it is possible?" (To be continued.) )