Chapter 174 It was actually designed by you, Professor Xu [Please subscribe]

"The fly-by-wire flight control system independently designed by our institute has been proven to be reliable on other types of fighter jets."

"However, the latest generation of stealth fighters have greatly improved their maneuverability due to their side strips and canard designs, but the control difficulty and risk will also increase significantly."

"This requires the flight control system to be more reliable and advanced, and there are still many areas that need to be upgraded in this regard."

In the spacious and bright conference room, Liang Zhanjun, the researcher in charge of the fly-by-wire flight control system, stood in front of the projection screen and explained the system problems in detail.

The others at the scene were listening attentively.

As the performance of fighter jets continues to improve, the requirements for flight control systems will inevitably continue to increase.

Take what Liang Zhanjun said at the meeting, for example, the J-20 adopts an aerodynamic layout design of side strips and canards, which enhances the fighter's lift performance.

However, there is a nonlinear relationship between their enhancement degree and deflection angle change.

In the first millimeter when the pilot pulls the joystick, the aircraft may rise gently and obediently.

And then one millimeter, it was like a strong and fierce horse being stabbed in the butt by a branding iron, and the man was thrown to the ground.

If an airplane is overturned while flying at high speed, it can disintegrate directly in the air.

This is how the importance of advanced flight control systems is reflected.

With the report of researcher Liang Zhanjun, everyone has a clear understanding of the current situation.

About five minutes passed.

Liang Zhanjun turned his gaze to Song Wencong and said, "Academician Song, I have finished speaking."

Upon hearing this, Song Wencong raised his hand to motion Liang Zhanjun to sit down first. Then he looked at Xu Yuan and Dai Zhigang next to him respectively, and asked with a smile.

"Do you two have anything else to add? If it's okay, I'll arrange the task."

"Since we've been invited to help this time, we'll naturally follow the institute's arrangements regarding our work." Dai Zhigang was the first to speak up when he heard this, and he had no objection to the matter.

Then Xu Yuan said without hesitation: "I have no objection either."

As for the postdoctoral fellow sitting behind Dai Zhigang, he had no right to speak in this situation.

Although he is older than Xu Yuan, there is still some distance between a postdoctoral fellow and a full professor.

Song Wencong listened to everything the two said and did not waste any time.

The work arrangements were announced directly on the spot.

"Since both of you have no objection, Professor Xu will be responsible for the flight mechanics mathematical model of the electronic control system, while Professor Dai and Researcher Liang will upgrade and optimize the hardware and software."

From the initiation of the domestically produced latest generation stealth fighter project to the present, their Jincheng Aircraft Design Institute has invested a lot of human resources and time.

If we fail to produce results as soon as possible, it will be difficult to explain to anyone.

After all, it was he who went against all odds and firmly supported the development of the latest generation of domestic stealth fighter jets.

According to his ideal result, the first flight would be completed next year.

It is not only an announcement to the world that they already have fighter jets that are not inferior to the most advanced in the world, but also a gift to the Olympic Games.

For this reason, he specifically sought external help, hoping to speed up the development of the J-20.

Needless to say, Xu Yuan is the designer of the fighter's aerodynamic layout and appearance. Professor Dai Zhigang from Jinling University has previously participated in the research and development of the flight control system of the previous generation of fighter jets.

At this time, when Xu Yuan heard the arrangement that Academician Song Wencong had made for him, it was quite within his expectations.

Although he was fully capable of optimizing the fly-by-wire flight control system software with his computer skills, since the institute had invited Professor Dai Zhigang to help, he couldn't do someone else's work as well. For now, he just had to complete the fighter flight mechanics calculations as quickly as possible and provide a mathematical model for Professor Dai Zhigang.

What's more, he was the designer of the aerodynamic layout of the fighter, so it was relatively easy for him to be responsible for this task.

Dai Zhigang would have no objection, and immediately stood up and stretched out his right hand towards Xu Yuan and said:

"Professor Xu."

"Then let's cooperate with each other."

"We will strive to complete the upgrade of the fly-by-wire flight control system as soon as possible so that the fighter jet can have a smooth maiden flight."

"Don't worry, Professor Dai. I will complete the mathematical model quickly and will not delay your progress." Xu Yuan also stood up and shook hands with the other party, making a special assurance with a warm smile on his face.

Dai Zhigang: "Everyone knows that Professor Xu is talented in mathematics. I am absolutely assured of this."

After saying this, Dai Zhigang turned his attention to Song Wencong and continued speaking in a more respectful tone.

"Speaking of such a complex aerodynamic surface design, this is the first time I have seen it on a stealth fighter."

"Although this leads to demanding requirements for the fly-by-wire flight control system, as long as an advanced and reliable flight control system can be developed, the performance of this fighter will definitely reach a terrifying level."

"By then, we will have fighter jets that are not inferior to the most advanced ones overseas."

He wasn't just saying this.

Although his main research area is computers, he has participated in the design of flight control systems for the previous generation of fighter jets, so he can still see how a fighter jet performs.

In addition, since the canard layout had been used by Academician Song Wencong before, Dai Zhigang believed that it was the aerodynamic layout designed by Song Wencong.

Even his postdoctoral student Li Hao, who was standing beside him, was looking at Song Wencong with admiration.

After all, if he hadn't had this opportunity by following his mentor, he wouldn't have seen that the country already had such powerful fighter jets.

For ordinary netizens outside, their understanding of domestic fighter jets is still at the level of the J-10.

This is the so-called third-generation aircraft.

When the J-10 made its first successful flight and began service, everyone was indeed excited for a while.

But when I think of the more advanced stealth fighters overseas, I still can't get rid of the sense of loss brought about by this huge gap.

Everyone is looking forward to the day when they can have their own domestically-produced top-notch stealth fighter.

However, due to the gaps in various aspects, everyone understands that realizing this dream cannot be accomplished overnight, and it may take many years to catch up.

What Li Hao can be sure of at this moment is that even if the news about the J-20 is announced now, probably not many people will believe in its existence.

Because just now at the meeting, he also couldn't believe it after hearing the introduction of the fighter's performance.

If it weren't for the occasion, he would have been so surprised that he would have shouted out loud.

Song Wencong understood Dai Zhigang's emotions very well, which just proved the powerful performance of the domestically-produced stealth fighter.

However, he did not take credit for being the designer of the aerodynamic layout and appearance.

The next second he smiled and explained:
"The latest generation of domestic stealth fighters use a canard-style aerodynamic layout with winglets and lifting bodies, which can indeed greatly enhance the maneuverability of the fighter."

"This design also ensures that our fighter jets have the strength to compete with foreign Raptors."

"But I was not the one who designed this aerodynamic layout."

When she said the last sentence, she glanced at Xu Yuan intentionally or unintentionally, with a bright smile on her face.

In addition, researchers such as Liang Zhanjun in the conference room, as well as Zhao Yuefeng in the back, also smiled and said nothing more.

On the other hand, Professor Dai Zhigang and Li Hao were instantly filled with surprise when they heard the news.

He repeated in disbelief: "The aerodynamic layout plan was not designed by you, Academician Song?"

He was quite familiar with Academician Song Wencong, who was the chief designer of the J-10 and had long ago proposed theories on the canard layout. Logically speaking, the current stealth fighter project should also be the masterpiece of Academician Song Wencong.

Song Wencong saw Dai Zhigang's confusion, so he didn't keep the matter a secret.

Dai Zhigang and Li Hao had not participated in the project before, so they were naturally subject to confidentiality regulations.

Now that the two have finished listening to today's report meeting, and will next be responsible for assisting in upgrading the fly-by-wire flight control system, there will be no issue of project confidentiality.

"In fact, the entire aerodynamic layout design for the latest generation of stealth fighter jets was completed by Xu Yuan."

Almost as soon as Song Wencong finished speaking, Dai Zhigang and Li Hao behind him immediately looked at Xu Yuan, their eyes widened in surprise.

If I had heard that the plan was not designed by Academician Song Wencong, I would have just felt surprised.

Then at this moment, all that is left is shock.

Of course, this does not mean to question Xu Yuan's ability. It is mainly because everyone has his or her own expertise.

Xu Yuan, who is well known to everyone, is the mathematical genius who won the Gauss Prize for proving many difficult mathematical problems.

But designing the aerodynamic layout of a stealth fighter is really hard to accept.

After a slight hesitation, Dai Zhigang couldn't help but ask another question.

"Professor Xu."

"As far as I know, you have been studying mathematics. Are you also studying the aerodynamic layout of fighter planes?"

He naturally would not think that Song Wencong was talking nonsense, which was why he found it so incredible.

At this point, Xu Yuan had no choice but to answer Dai Zhigang.

"That's right, Professor Dai. In addition to studying mathematics, I also studied engineering mechanics at Qinghua University."

"I designed this aerodynamic layout after reading Academician Song's paper on small aspect ratios."

As soon as he finished speaking, Academician Song Wencong added: "If Xu Yuan had not provided us with this aerodynamic layout plan, the domestic stealth fighter project would not have been so easy to finalize." While speaking, his face did not hide his admiration for Xu Yuan at all.

Li Hao finally reacted after hearing this. He didn't expect that the person who made the domestic stealth fighter come into being was Xu Yuan, a mathematical genius who was much younger than him.

As a doctoral graduate from the School of Computer Science at Jinling University, he had of course heard of Xu Yuan's experience.

In the past, he just thought that Xu Yuan was a very rare mathematical genius like Gauss, and was a natural mathematician who could lead the rise of China's mathematical community. But today he really realized that he had always seriously underestimated Xu Yuan's talent.

Xu Yuan's talent is not limited to mathematics, but is also beyond the reach of others in other fields.

Perhaps it was this huge change in mentality that made him unable to help but interrupt and say something.

"I didn't expect that this aerodynamic layout design was actually designed by you, Professor Xu."

I didn't even notice that I called out "Professor Xu" so smoothly.

However, Zhao Yuefeng, who was sitting in the back, could understand Li Hao's inappropriate behavior very well.

It was as if I saw myself at the seminar in the other person.

I couldn't help but have a much better impression of Li Hao.

Dai Zhigang was still digesting what Academician Song Wencong had just said, because he discovered something from it.

It was Professor Xu's proposal that led to the launch of the stealth fighter project.

A few years ago...

Doesn't that mean he designed the plan right after entering college?
His thoughts stayed here, and after he figured out the real situation, he immediately exclaimed:

"Professor Xu just started college and he has already completed this aerodynamic layout plan?"

"It was also my good luck that I was selected for use in the domestic stealth fighter project." Xu Yuan met Professor Dai Zhigang's surprised expression, paused, and answered in a humble manner.

When Dai Zhigang heard this, he took a deep breath and calmed himself down a little.

Then his eyes stopped on Xu Yuan and he said with a complicated expression.

"No wonder you Qinghua wanted to keep you no matter what. It's a great blessing for the country to have a genius like you."

He wouldn't simply think that Xu Yuan was lucky.

I still remember that when Xu Yuan was a freshman, he proved the problem of the spacing of infinite Carmichael numbers and published his first paper in the Annals of Mathematics.

With such solid achievements, it is normal to also achieve some results in aerodynamic layout design.

It’s just that the latter is unknown to the outside world.

He even couldn't help but wonder, what would happen if one day everyone knew that the world-famous young genius mathematician also designed the aerodynamic layout of the latest generation of domestic stealth fighter jets.

I don’t know what the reaction will be.

But one thing is absolutely certain, that is, the whole world will be shocked.

Song Wencong obviously liked to see everyone's recognition of Xu Yuan, and he did not forget to take over the conversation and agree with them.

"I remember that day when Xu Chongxing from the Institute of Fluid Mechanics came to see me with Xiao Xu. When I saw the aerodynamic layout design plan, I was even more surprised than you are now."

"If the country could have a few more geniuses like Xiao Xu, our technology would definitely surpass that of overseas countries."

"Academician Song, your words are very profound. It seems that we still need to give more opportunities to young people." Dai Zhigang nodded in agreement.

As soon as he finished speaking, a smile appeared on his face again, and he expressed his heartfelt emotions to Xu Yuan.

"Since Professor Xu is the designer of the aerodynamic layout, I will be more confident about upgrading the fly-by-wire flight control system."

"I will fully cooperate with Professor Dai," Xu Yuan replied warmly.

The meeting ended here, and Song Wencong did not waste too much of everyone's time.

After giving a few final instructions, he announced the end of today's meeting, and everyone left one after another to start their own work.

It is worth mentioning that Jincheng Aircraft Design Institute has prepared special offices for Xu Yuan and Dai Zhigang.

Xu Yuan wanted to complete the flight mechanics calculations as soon as possible so that he could provide a mathematical model to connect with Dai Zhigang.

So after the meeting, I returned to my office and quickly immersed myself in deep learning.

As for Dai Zhigang, he was also busy testing the existing flight control system software in order to better grasp the key points and complete the optimization.

……

……

Xu Yuan's efficiency has always been amazing, not to mention that this time he was calculating the mathematical model for the aerodynamic layout that he designed himself.

In just a few days, everything was completed.

After all, they are just some mathematical models, which are much easier than proving the Goldbach conjecture.

That morning, Xu Yuan was sitting at his desk. He stopped and stretched while looking at the mathematical model he had just completed.

"We have finally finished the model. The next step will be handed over to Professor Dai."

Thinking that Academician Song had not assigned him the task of upgrading the software, he muttered this to himself, while planning what to do next in his mind.

He was undoubtedly confident about the mathematical model he had completed.

There will definitely be no mistakes.

So to some extent, the mission he was invited to help with the stealth fighter project has been accomplished.

Dai Zhigang's job is to upgrade and optimize the fly-by-wire flight control system to ensure that its performance meets the requirements.

However, he has no plans to leave for the time being, at least until there is progress in upgrading the fly-by-wire flight control system.

Otherwise, if we call him over again, we’ll have to go through a lot of trouble.

Besides, being here does not affect his research on the Goldbach conjecture. Perhaps the new environment can spark more inspiration.

Just as he was thinking about this, his thoughts were suddenly interrupted by a knock on the door from outside.

He quickly came to his senses, looked towards the office door, and then uttered two words.

"Please come in."

Zhao Yuefeng pushed the door open upon hearing that.

After walking to the desk and stopping, he addressed him respectfully as Professor Xu.

"Professor Xu."

As the saying goes, when we address others by their positions at work, there is some difference from how we interact with them in private.

Xu Yuan didn't say much after hearing this, but just asked normally: "What do you want to talk to me about?"

"It's like this, Professor Xu. Academician Song asked me to ask if you have any other requests. If you have any questions, just tell me directly." Zhao Yuefeng answered Xu Yuan's question truthfully.

"The institute has made sufficient preparations. I don't have any other requests. But since you are here, come with me to Professor Dai." Xu Yuan suddenly said, "I just happened to share my completed mathematical model of flight mechanics with him."

"Okay, Professor Xu... mathematical model?" Zhao Yuefeng reacted belatedly after hearing this.

Then he subconsciously asked, "Are you saying that the mathematical model has been completed?"

He has been involved in the domestic stealth fighter project and is very familiar with the computational complexity of the mathematical model of flight mechanics.

What’s more, Xu Yuan did not optimize the original model, but designed a new model from scratch.

This undoubtedly increases the workload.

In the opinion of other researchers in the institute, it will definitely take a lot of time to complete this mathematical model.

Now he heard something.

However, in just a few days, Xu Yuan had completed the model.

Even though he knew Xu Yuan's talent, he still couldn't help being surprised when he heard this efficiency with his own ears.

"I'm worried that Professor Dai will be waiting anxiously." Xu Yuan said as he picked up his things and stood up to go out.

Zhao Yuefeng didn't say anything more after hearing this, and immediately followed Xu Yuan to Dai Zhigang's office.

In the past few days, Dai Zhigang has conducted a relatively detailed study on the existing fly-by-wire flight control system, and has initially come up with a relatively clear optimization direction and content.

However, since we didn’t get the new mathematical model designed by Xu Yuan, it was difficult to start the subsequent work immediately.

After all, only a few days had passed, and even if Xu Yuan was a math genius, it would be impossible for him to accomplish it.

But after Xu Yuan came over, this thought completely disappeared from his mind in an instant.

——"The mathematical model of the fighter's flight mechanics has been completed. This speed is really amazing."

In the office, Dai Zhigang took the things handed to him by Xu Yuan. He was still a little unresponsive, and his face showed nothing but surprise.

If I didn't know that Xu Yuan couldn't lie about such a thing, and had already got the things.

I guess they wouldn't believe it.

Of course, it is normal for him to behave like this. Who would have thought that in addition to having a high talent, Xu Yuan could also enter a deep learning state at any time.

In this state, the efficiency is several times higher than usual.

It might be because I had a new understanding of Xu Yuan’s talent a few days ago.

This time he calmed down quickly, and a smile appeared on his face again, looking quite excited.

"It should be said that this mathematical model is quite timely. Next, we can immediately start upgrading and optimizing the flight control system."

"Then I'll leave the rest of the work to Professor Dai. If you have any questions, you can always come to me." Xu Yuan said with a smile after the meeting with Dai Zhigang.

Hearing this, Dai Zhigang said confidently:
"Don't worry, Professor Xu."

"With your model, I think I can optimize the system quickly."

From the moment they arrived at Jincheng Aircraft Design Institute, everyone's attention was on Xu Yuan.

Although this was nothing, it was finally his area of ​​expertise.

It must be completed beautifully.

With the experience of the previous generation of fighter jets' fly-by-wire flight control systems, he is confident that he can make the flight control system more advanced.

Xu Yuan listened to everything Dai Zhigang said, and then he stopped disturbing him and left with Zhao Yuefeng.

He is not sure whether Dai Zhigang has a clear understanding of the aerodynamic complexity of the J-20, but if it is just regarded as an ordinary domestic stealth fighter, then the flight control system finally developed may not achieve the best effect.

However, the results have not come out yet, and we can only make a preliminary judgment after the ground test is completed.

that's it.

In the following time, Xu Yuan felt much more relaxed and spent most of his time in his office.

Continue to study the Goldbach conjecture.

In addition, he returned to Yanjing several times and did not stay in Jincheng all the time.

In addition, he is also paying attention to the specific situation of the flight control system that Dai Zhigang and Liang Zhanjun are jointly responsible for.

Judging from the information we have received, the upgrade and optimization work is going smoothly.

Two months passed in the blink of an eye.

end of September.

Thanks to Xu Yuan's efforts, he successfully combined the previous screening method and improved it.

Although there is still a long way to go to prove the Goldbach conjecture, it is not without gain.

If he focused his eyes on the panel in front of him at this time, he would definitely find that the progress bar had reached 20%. Even if it was only a 10% increase, it represented the motivation to continue proving himself.

At least it shows that his current ideas and direction are correct.

No errors occurred.

It’s just that the proof method is not the optimal solution, so the growth of the progress bar appears to be very slow.

But even so, according to the current efficiency, he can still finish the project ahead of schedule.

"There is still room for improvement in the current screening method. It seems that further innovation is needed."

"In addition, we can consider combining methods from the branch of group theory mathematics."

In the office in the morning, after having breakfast, Xu Yuan started to continue with the previous proof progress and continued to deduce and improve the process.

During this process, various methods kept emerging in my mind, but were rejected as quickly as possible.

Ensure that the Goldbach conjecture is solved with high efficiency.

However, at this time he did not immerse himself in deep learning. Instead, he looked at the time and stopped temporarily.

"It's almost time to pass."

He simply tidied up the manuscripts on the desk, stood up and pushed open the office door to go out while muttering to himself.

A few days ago, the flight control team led by Liang Zhanjun had already notified the research institute and decided to conduct onboard ground tests of the flight control system today.

This includes acceptance testing of field replaceable components.

Testing and validation of software.

Comprehensive experiment of the whole system.

Structural modal coupling experiment and other tests.

Strictly speaking, this is also a preliminary verification of the fighter's flight control system, which is used to judge the character of the flight control system.

If the final data does not meet the ideal target, then even the flight test cannot be carried out.

Just two months after the flight control system was upgraded and optimized, onboard ground tests of the flight control system were arranged. This shows that the upgrade of the flight control system has made significant progress.

So Xu Yuan is also looking forward to this.

Soon Xu Yuan arrived at the ground test site on the aircraft. He looked up and saw that Liang Zhanjun and Dai Zhigang were already in place.

Final preparations are underway.

Even Li Hao followed behind to run errands and help, and everyone's face was filled with confident smiles.

"Professor Xu is here. I hope today's experiment will give you a surprise."

Dai Zhigang noticed Xu Yuan's figure, and immediately stopped what he was doing and greeted him confidently.

Xu Yuan nodded and said, "I am looking forward to it too."

After saying this, he did not forget to greet researcher Liang Zhanjun next to him.

Soon, Academician Song Wencong and other researchers also rushed over to witness today's experiment together.

After all, as long as the flight control system passes the test, the next step will be to arrange the flight test, so the real first flight will not be far away.

Song Wencong always noticed Xu Yuan at a glance and would take the initiative to come over to chat about the next experiment.

"Professor Dai was able to assist Xiao Liang and his team in getting the fighter's fly-by-wire flight control system to the level of onboard ground testing so quickly, which has a lot to do with your quick completion of the mathematical model."

"Otherwise, we wouldn't be able to see this ground test today."

It can be seen that Song Wencong highly praised Xu Yuan's efficiency and did not hide the joy on his face when he spoke.

Xu Yuan spoke truthfully: "It's mainly because I'm familiar with the aerodynamic layout and appearance design of the fighter plane, otherwise it would be impossible to complete the model so quickly."

After listening to this, Song Wencong did not talk more about this topic and immediately raised another question.

"Let's not talk about that for now. What do you think of today's flight control system onboard ground test?"

"Can the fighter plane's performance be fully utilized?"

"The canard-style aerodynamic layout of the wing slat lift body is quite bold, and the number of aerodynamic surfaces is very large, which puts almost harsh demands on the flight control system."

Faced with this question, Xu Yuan organized his words a little before speaking.

"This requires the flight control system's computer software to be powerful enough and to have advanced and appropriate algorithms to assist in operation."

"What you said is exactly what we are worried about, but since we have chosen this aerodynamic layout, we must get the flight control done no matter how difficult it is." After listening to Xu Yuan's words, Song Wencong nodded in response.

From the beginning of the domestic stealth fighter project, everyone was aware of the difficulties that might be encountered during the research and development process.

The reason why we persist to the end and never give up is because once we succeed, it will bring benefits to the country.

It can make its own fighter jets reach the world's leading level in one fell swoop.

Having said that, the two of them didn't say anything more for the rest of the time, waiting patiently for the final preparations to be completed.

About another twenty minutes passed.

Liang Zhanjun walked quickly to Song Wencong and made a formal report before the experiment.

"Song Yuan."

"All preparations for the onboard ground test of the J-20 fighter's fly-by-wire flight control system have been completed."

"You can start the experiment."

Hearing this, Song Wencong just calmly shouted out three words: "Let's get started."

As Song Wencong issued the final order, the engineers responsible for the onboard ground tests also began to get busy.

Record various indicators and data of the fighter.

This was the first time that Xu Yuan saw the latest generation of stealth fighter designed by himself at such a complete and close distance.

The unique canard-style shape of the canard and the large size of the aircraft, which is far longer than overseas fighter jets, give people a strong visual impact.

At this time, Professor Dai Zhigang looked extremely focused, personally watching all aspects of the onboard system testing, fearing that even the slightest mistake would affect the final verification results.

As time goes by, ground tests on the aircraft are still in full swing.

It lasted until almost noon before it gradually came to an end.

However, no one had any plans to eat at the moment, as they were all looking forward to the results of this experiment.

But judging from the expressions on Liang Zhanjun and Dai Zhigang's faces when they received the results, it's probably not as ideal as they imagined.

……

"What were the results of this onboard ground test of the flight control system?"

Song Wencong could not wait to come before Liang Zhanjun and immediately asked about the key points of the test.

Liang Zhanjun paused for a moment before speaking: "Compared with the previous version of the fly-by-wire flight control system, after being upgraded and optimized by Professor Dai, all performance aspects have been greatly improved, but some individual aspects still do not meet our expectations." He did not forget to hand the detailed report document in his hand to Song Wencong for review.

Upon hearing this, Song Wencong took the report and looked at it carefully, and found that it was indeed the same as what Liang Zhanjun reported.

Although only a few individual data performances did not meet expectations, it still sentenced the entire fly-by-wire flight control system to death.

After all, stealth fighters are different from ordinary fighters. At such a fast flying speed, if individual control units fail to achieve the expected performance, it is not just the performance of the fighter that is affected.

Instead, it is very easy to have an accident in which the aircraft is destroyed and people are killed.

This is something that no country can accept.

However, considering that the upgrade of the fly-by-wire flight control system was indeed effective, Song Wencong did not hesitate to give praise after closing the report.

"It's a good thing that our flight control system optimization has achieved results. This progress in just two months is already very good."

Dai Zhigang stood next to Liang Zhanjun, heard this sentence, and suddenly said:

"This time it's mainly because the system computer's software algorithm needs to be optimized. It will take some time to solve this problem."

"The fly-by-wire flight control system is not just your business, Professor Dai. Just do your best and don't put too much pressure on yourself." After listening to Dai Zhigang's words, Song Wencong deliberately added a few more words.

For Dai Zhigang, he and Xu Yuan were both invited by the Jincheng Aircraft Design Institute to participate in the upgrade of the fighter's flight control system.

Now that Xu Yuan had completed the assigned work in just a few days, he naturally didn't want to fall behind.

Originally, he was quite confident about today's onboard ground tests and believed in the performance of the upgraded fly-by-wire flight control system.

As a result, several values ​​still did not meet expectations.

It can only be said that he underestimated the operational complexity of this stealth fighter. It is indeed not an easy task to perfectly bring out the performance of the fighter.

But he still has some confidence in the optimization of fighter jets' fly-by-wire flight control systems.

It's just a matter of spending more time.

Xu Yuan saw this scene, and although he was not surprised by the result, he couldn't help feeling a little regretful.

In the afternoon, when he was about to go to Dai Zhigang to apply for cooperation with him in optimizing the fly-by-wire flight control system, he suddenly received a call from an acquaintance he hadn't seen for some time.

After chatting for a few minutes on the phone, the two agreed on a meeting place.

-

"Junior Brother Xu, this way."

In the afternoon, Xu Yuan came to a restaurant according to the address. As soon as he walked upstairs, he saw a familiar figure standing at the door of the private room, waving at him.

When Xu Yuan saw this scene, a slight smile appeared on his lips and he walked straight towards the other party.

When he got closer, he responded, "Brother Guo, we haven't seen each other for a long time."

That's right.

The familiar person in front of me is Guo Zhihang, a doctoral graduate from Qinghua School of Planning.

It was Xu Yuan who helped complete the machine learning algorithm, enabling the project to successfully obtain national support.

When Qinghua held the annual Person of the Year awards ceremony, Guo Zhihang and Zhu Minfeng said that they would go to Jincheng to participate in a key project to add a very important function to the Skynet monitoring system with the help of their algorithms.

After he came to Jincheng Aircraft Design Institute, he did not take the initiative to contact them because of the sensitivity of the project and his busy research on Goldbach's conjecture.

I didn't expect Guo Zhihang to come to me today.

"Look, I forgot about this again. Now I should call Professor Xu."

Guo Zhihang pulled Xu Yuan into a private room, and suddenly thought of something, so he quickly changed his words with a smile.

Xu Yuan glanced at this and said, "Don't be so harsh. Just call me Junior Brother."

"Min Feng is busy with a project today and can't leave, so I have to pay for Professor Xu's dinner." Guo Zhihang continued after seeing Xu Yuan sit down: "If I hadn't called the hospital, I wouldn't have known you were coming to Jincheng."

"Come and have a cup of this sour plum juice to cool down."

Xu Yuan and Guo Zhihang tacitly understood each other and did not explain the detailed reasons for his sudden visit to Jincheng.

He took a sip of the sour plum juice in front of him, then continued, "You called me here today. Did you encounter any difficulties in the project?"

He told Guo Zhihang on the day of the award ceremony that he could contact him if he encountered any difficulties with the project.

After all, when Guo Zhihang and his colleagues applied for national funding, his name was also listed as a member of a project on the application for machine learning algorithms.

Guo Zhihang shook his head and said, "This project went very smoothly. Our algorithm has been integrated with Jincheng Skynet surveillance."

"I'm here to talk to you about two things today. In addition to inviting you to dinner, I also want to invite you to attend the launch ceremony the day after tomorrow."

"Starting ceremony?" Xu Yuan repeated subconsciously.

After Guo Zhihang's detailed explanation, Xu Yuan finally understood the whole situation.

It turned out that their project in Jincheng was indeed going smoothly this time. With the help of machine learning algorithms, they successfully developed an image restoration algorithm and used it as the software system for Skynet monitoring.

With the help of this image algorithm, when looking for a person or object, it can be directly compared with the images in the surveillance system.

Similar data can be identified at the fastest speed, greatly reducing the manual comparison time of staff.

In addition, blurred surveillance images caused by environmental weather can also be further restored.

The day after tomorrow is the day when Jincheng officially launches the Skynet surveillance system as a pilot city.

If the effect is very good, it will be put into use nationwide in the next step.

Although he did not specifically participate in the project at Jincheng, he is the developer of the machine learning algorithm. Since he happened to be in Jincheng, it was normal for him to attend the launch ceremony.

At the beginning, Guo Zhihang was afraid that he would waste Xu Yuan's time. After all, everyone knew that Xu Yuan wanted to study the Goldbach conjecture, and it would take a long time to travel from Yanjing and back.

When he called Professor Yao Qizhi of the School of Planning to report the good news of the project, he learned that Xu Yuan happened to be in Jincheng.

So this is what happened today.

After figuring out the situation, Xu Yuan had no reason to refuse since he would just show up for the day anyway.

With his thought staying here, Xu Yuan stopped hesitating and looked at Guo Zhihang and agreed without hesitation.

"I know about this. I will be there on time the day after tomorrow."

After saying that, he picked up the sour plum juice in front of him and congratulated Guo Zhihang and Zhu Minfeng on the success of their project.

“Also, congratulations on the successful completion of the project.”

"Junior brother, it's great that you can come." Guo Zhihang said repeatedly with a bright smile on his face.

In the following time, Xu Yuanze and Guo Zhihang ordered several dishes.

Then they went back separately.

Friday, September 2007, 9, Jincheng Skynet Monitoring Center.

After breakfast, Xu Yuan came to the Public Security Building. Because he had called Guo Zhihang in advance, he soon saw Guo Zhihang and Zhu Minfeng coming over.

Both of them had work IDs hanging around their necks.

After all, this is a special place and you can't get in without a special person to lead you.

Originally, Xu Yuan just wanted to come here simply to show his face, so as not to waste the kind invitation of Guo Zhihang and Zhu Minfeng.

After entering the building and arriving at the monitoring center, I saw two familiar faces.

(End of this chapter)