Chapter 932
This is what geniuses are like
At 11 p.m., the atmosphere in the control room suddenly became tense.
Yang Anchao sat in front of the control panel, with dense streams of data scrolling across the three screens in front of him.
He is reviewing the guidance algorithm for a soft landing on the lunar surface, which is the most critical part of the entire mission. The rocket needs to initiate the landing procedure at an altitude of tens of kilometers above the lunar surface, use reverse thrust to decelerate, and adjust its attitude at the same time, so that it can finally land steadily on the lunar surface at a near-zero speed.
The guidance algorithm in this process needs to handle hundreds of variables—velocity, altitude, attitude, thrust, fuel reserves, lunar surface topography, and gravity anomalies.
If any variable malfunctions, the landing may fail.
Yang Anchao had been reviewing the case for three hours, drinking four cups of strong tea, and his eyes were bloodshot, but he remained highly focused.
"Mr. Yang."
A young engineer suddenly stood up, his voice a little strained: "Look here."
Yang Anchao walked to his workstation and leaned over to look at the screen.
The above is a set of simulation data for a guidance algorithm. The curve suddenly showed abnormal fluctuations at a certain node.
"what is this?"
Looking at the screen, Yang Anchao asked, "Is this a response delay in the attitude control system?"
The young engineer immediately pulled up more detailed data and explained, "At an altitude of 1,200 meters above the lunar surface, the rocket needs to make a final attitude adjustment, changing from an inclined state to a vertical state. During this process, the response time of the attitude control engine is 0.1 seconds slower than the design value."
"One tenth of a second?"
Someone nearby breathed a sigh of relief and said, "This is nothing."
Yang Anchao didn't speak, but just stared at the data, his brows furrowing deeper and deeper.
Old Zhou walked over, glanced at the screen, and his expression changed.
"A delay of 0.1 seconds means that the rocket will descend an extra 10 meters during attitude adjustment. Ten meters is nothing on flat ground. But on the lunar surface, a 10-meter error could mean landing in a crater, on a slope, or in a pile of rocks. If it lands steadily, everything is fine. If it doesn't land steadily, the 60-ton rocket will tip over, and the entire rocket landing on the moon will become the entire rocket landing on the moon."
The control room was so quiet you could hear each other breathing.
Everyone was watching Yang Anchao, waiting for him to make a decision.
"Can it be adjusted?" Yang Anchao asked.
The young engineer shook his head.
“We tried adjusting the control parameters, but the root cause of the delay is not in the software, but in the hardware. The solenoid valve of the attitude control engine takes 0.3 seconds from receiving a signal to fully opening. This physical delay cannot be compensated for by software.”
Yang Anchao fell silent.
Hardware issues mean that the design needs to be changed.
Changing the design means dismantling the arrow.
Dismantling the arrows means that the 21-day countdown may not be completed.
"Is there any other way?"
No one answered.
Because everyone knows that this problem is difficult to solve.
Yang Anchao stood up and paced back and forth in the control room a few times.
Then he stopped, as if making a decision, took a deep breath, picked up his phone, and dialed a number.
"Mr. Wang, we need your help with a problem."
Wang Donglai arrived thirty minutes later.
He came alone, without anyone else with him.
When he walked into the control room, everyone stood up.
It wasn't because he was the boss, but because they knew this person could solve problems.
"Tell me more about it." Without exchanging pleasantries, Wang Donglai walked directly to the main control panel.
Yang Anchao explained the situation, pulled up the data, and pointed to the abnormal curve.
"The response delay of the solenoid valve of the attitude control engine is 0.1 seconds, which cannot be compensated by software and cannot be modified in time."
Wang Donglai stared at the screen, lost in thought.
Everyone held their breath, waiting for him to speak.
To be honest, when Yang Anchao took out his phone, everyone breathed a collective sigh of relief.
Those who had witnessed Wang Donglai's research capabilities appeared very confident, while those who had not met him showed little skepticism.
After all, Wang Donglai has a well-established reputation, and the fact that so many cutting-edge technological breakthroughs were achieved under his guidance is enough to prove a lot.
The issue of solenoid valve response delay may be a difficult problem for them to solve.
But for Wang Donglai, it might not be the case.
"This problem isn't unsolvable, but we don't have enough time right now, so let's bypass it for now."
Wang Donglai didn't keep them waiting long before confidently speaking.
"Bypass?" Yang Anchao was taken aback.
Wang Donglai did not offer much explanation.
He walked to the whiteboard, picked up a marker, and began writing formulas.
The control room was so quiet you could hear the scratching of a pen tip across the whiteboard.
Yang Anchao looked at the formulas, first confused, then surprised, and finally shocked.
He understood!
Wang Donglai wasn't adjusting the control parameters; he was redesigning the control logic.
"The response delay of the attitude control engine is due to the physical characteristics of the solenoid valve. This delay cannot be changed, but we can make it start earlier."
Wang Dong glanced at the others gathered around and began to explain: "The current control logic is that the sensor detects the attitude deviation, sends a command, the solenoid valve responds, and the attitude control engine ignites. Each step of this process has a delay. Added together, it's 0.3 seconds."
He stopped, looked at Yang Anchao and the others, and said, "We don't need to change the physical properties of the solenoid valve; we only need to change the timing of the command transmission."
Yang Anchao's eyes lit up, and he quickly said, "Send it ahead of time?"
"Yes, instead of waiting for the attitude deviation to occur before making adjustments, we predict the attitude deviation and send commands in advance. In this way, when the attitude control engine actually ignites, the deviation occurs just in time, and the delay is canceled out."
Old Zhou gasped, saying with a mixture of shock and disbelief, "Predict attitude deviation? How is that possible?"
Why is it impossible?
Wang Donglai looked at Lao Zhou and calmly asked, "The attitude changes of the Hercules rocket are determined by hundreds of variables, such as thrust vector, center of mass position, fuel sloshing, and external disturbances. These variables are not random; they follow certain patterns. Once you find the patterns, you can predict them."
He turned around and continued writing on the whiteboard.
This time, I'm not writing a formula, but a diagram of a neural network structure.
"Use AI. Feed in all the past flight data of the Lux rockets and train an attitude prediction model. This model can predict the deviation tens of milliseconds in advance. Then, input the prediction results directly into the control commands, skipping the sensor detection process. In this way, the response delay is canceled out."
There was a three-second silence in the control room.
Then, Lao Zhou was the first to react and pointed out the technical difficulties in this plan: "It's feasible. But training this model requires a massive amount of data, and the data must be highly consistent with the actual flight characteristics of the Lux-2000. Do we have enough data? In addition, the model must be highly accurate and precise."
Wang Donglai put down his pen and said confidently, "The data may not be much, but we can supplement it with simulation data for AI. On the quantum computing platform, there is a complete digital twin model of the Lux-2000. We can use this model to generate simulation data and train it by mixing it with real data. The model's generalization ability is sufficient to cover real flight." Yang Anchao nodded. He naturally understood how powerful Galaxy Technology's artificial intelligence technology was.
Furthermore, the fact that these words came from Wang Donglai makes it even more plausible.
He immediately made a decision and asked, "Mr. Wang, I'd like to ask, approximately how long will it take?"
"We should be able to finish the first version tonight."
Wang Donglai's voice remained calm, showing no surprise at Yang Anchao's choice.
"You'll have the trained model by tomorrow morning. Then you can use this model to run simulations of the guidance algorithm and see if the delay can be offset. If it can, continue; if not, optimize it further."
Looking at Wang Donglai, Yang Anchao suddenly realized that he really was getting old.
In the past, if this problem were encountered in the space agency, the launch would inevitably be postponed, and everyone would work overtime to find a solution.
This doesn't even mention the various pressures faced when such an event occurs.
But at Galaxy Technology, Wang Donglai came over immediately with just one phone call.
In less than an hour, they came up with a definite and feasible solution.
They were not pressured or criticized.
They offered nothing but support and trust.
"Mr. Wang."
His voice was a little hoarse, but he said firmly, "The 'Entire Arrow Landing on the Moon' project will definitely be completed on time and perfectly!"
Wang Dong looked at him and the many staff members around him, a smile appearing on his face.
There was no smugness in that smile, only a reassuring certainty.
"Engineer Yang, I've always believed that!"
……
At four in the morning, the control room was still brightly lit.
Yang Anchao didn't leave, Lao Zhou didn't leave, and the whole team stayed.
They are waiting for the training results of the AI run.
Wang Donglai originally wanted them to leave work on time, but they refused to leave no matter what, insisting on seeing the training results data to confirm that the plan was correct.
In the end, both sides compromised, and once the data came out and it was confirmed that the solution was sound, they immediately left work and took a day off the next day.
Wang Donglai didn't leave either. He sat in the corner with a cold cup of tea in front of him and a pen in his hand, writing something on a piece of paper.
At five o'clock in the morning, Wa's voice rang out in the control room.
"The attitude prediction model V1.0 has been trained. On the test set, the prediction accuracy is less than 0.01 degrees for deviation and less than five milliseconds for time prediction. The simulation results after integration with the guidance algorithm show that the landing point deviation of the lunar soft landing has been reduced from ±15 meters to ±3 meters."
There was a moment of silence in the control room.
Then, applause broke out.
It wasn't the kind of polite applause; it was heartfelt applause, filled with both exhaustion and excitement.
Yang Anchao did not applaud.
He simply sat in front of the control panel, staring intently at the simulation curve that had reappeared on the screen.
The curve was as smooth as a ribbon, stretching from a height of 1,200 meters all the way to the lunar surface, without the slightest fluctuation or anomaly.
He stared at it for a long time, then stood up and walked over to Wang Donglai.
"Mr. Wang, we're counting on you this time. If it weren't for you, we wouldn't know how to solve this problem."
Wang Donglai stood up, looked at him, and patted him on the shoulder.
"Engineer Yang, I've said it before, I will provide you with all the support you need, whether it's funding or technology."
"So, if you encounter any problems, you can contact me anytime."
"Twenty-one days from now, I want to see that rocket land steadily on the lunar surface, lying there, becoming our first lunar base."
Yang Anchao nodded vigorously. He turned around and said to everyone in the control room, "Everyone, there are only twenty days left. In twenty days, we will show the world that the Chinese can send rockets to the moon and lay them there as a base."
"Does everyone have confidence?"
A chorus of responses immediately rang out in the control room: "Yes, sir!"
Although they had stayed up all night, no one seemed tired; on the contrary, they looked quite energetic.
However, at this very moment...
"Alright, everyone hurry up and go home to get some rest."
"To do scientific research, you must take good care of your health. Only when you are healthy can you have more possibilities."
"Overtime is acceptable, but it must be strictly controlled, and work must be carried out on the premise of ensuring physical health."
"Finally, I congratulate you all on the success of this project, and the 100 million bonus is always ready."
Wang Donglai didn't say much, but his words had a powerful effect on boosting morale.
Not only do they care about their employees' health, but they also pay them generously and readily.
Such a boss is not just rare, but extremely rare.
……
Wang Donglai, upon returning to headquarters, did not rest.
With Wang Donglai's current physique, although he can't be called a superman, he is definitely far beyond that of an ordinary person.
Even today, Wang Donglai has a lot to deal with every day.
Galaxy Technology Group has hundreds of thousands of employees and more than a thousand business chains and partner companies.
As the head of such a super conglomerate, there are too many things that Wang Donglai needs to handle.
If it weren't for the AI Wa helping Wang Donglai with most of the work, he wouldn't have had so much free time to do scientific research.
Even so, there are still many things that Wang Donglai has to handle personally.
And these things, unsurprisingly, are all matters concerning development direction and strategy.
All Wang Donglai needs to do is point out a direction, list the requirements, set goals, and then supervise the process.
The rest can be left to the people below.
Just like the movie "All or Nothing".
In terms of economic scale, this is at most a project with a profit of a few hundred million.
Galaxy Technology is simply not worth mentioning.
However, the film carries something extraordinary, which is why Wang Donglai attaches such importance to it.
Wang Donglai oversaw the entire process from project initiation to release.
To ensure the film would generate wider discussion and attention, Wang Donglai even retrieved the song from his memory. (End of Chapter)