After the design of the shape of the recyclable rocket was completed, the 1,210-ton propulsion system that had been completed before was added.

If you compare a rocket to a person.

At this moment, he already has thick and powerful legs and a healthy and straight torso.

What is lacking now is eyes and ears that can explore the surroundings clearly, and a brain that decides where the rocket goes!

The eyes and ears of a rocket are actually the measuring instruments in its navigation system.

Different types of rockets will adopt different navigation methods, such as inertial navigation, satellite navigation, starlight navigation and so on.

Generally speaking, rockets are guided by inertia, and gyroscopes and accelerometers are used for navigation.

A small number of satellite navigation systems will be used to assist in positioning, as for the use of relatively fixed neutron stars in the universe for navigation, it is relatively rare, and only when detecting planets in the solar system, starlight guidance will be used.

But in general, no matter which way of navigation you take, in the process of navigation, you leave behind a variety of gyroscopes and accelerometers.

Gyroscopes play an important role in the process of inertial guidance of rockets.

The gyroscope on the rocket, generally a sensing gyroscope, can detect different data such as horizontal, vertical, pitch, heading and angular velocity of the rocket.

And it will be passed to the control computer of the rocket, and then the control computer of the rocket will give various data according to the gyroscope.

The state of the current rocket is automatically calculated, and the attitude is adjusted.

The form of action of acceleration is similar to that of gyroscopes, but the physical parameters measured by the two are different.

Although the actuator in the attitude control system is different, the newly developed recoverable rocket is not the same as the previous one.

However, in terms of navigation methods, the difference is not very big from the previous one, and the inertial guidance method is also used.

Therefore, the development progress of the navigation system is progressing relatively smoothly, but the attitude adjustment system is relatively not so smooth.

Because the rocket has to take into account the recovery factor, the sensitivity and accuracy of attitude adjustment have higher requirements.

If the first-stage rocket cannot make sensitive and accurate attitude adjustments when returning to the landing site, it is easy to cause all kinds of accidents.

After the separation of the first-stage rocket, the attitude control system is required to adjust the rocking engine of the first-stage rocket and adjust the angle so that the rocket can smoothly return to the landing site.

"How's the attitude control system doing?"

After Zhang Xingyang returned from the high-speed research institute of the aerodynamics research center, he came to the control system research room in a hurry.

Ask Qin Ming, who is in charge of the research and development of the control system, about the current research and development progress of the attitude control system.

You know, what the rocket lacks now is the control system, as long as this part can be successfully completed.

Then the rocket can start the test launch work at any time, and then the follow-up low-orbit satellite communication network project work can be launched!

"Brother Xingyang, the current problem is still stuck in what I told you last time, the problem of controlling the speed of the computer."

"We've tried to reduce the accuracy of the data in the input control computer, although it does greatly reduce the computation time of the control computer."

"However, the output control amount of the control computer, the deviation range will be a bit large, and it will not be able to meet our requirements for accuracy."

Qin Ming was also a little helpless, with the current equipment conditions, it was difficult to find a solution to the best of both worlds.

"We have done simulation experiments on the small supercomputer in the research institute, and the probability that the rocket can accurately land in the process of returning to the landing site is no more than 30%."

Listening to Qin Ming's complaints, Zhang Xingyang rubbed his stubble-covered chin a few times before he had time to shave.

"Have you been in contact with the computer institute? Do they have a way to provide higher performance computer chips? ”

The easiest way to solve the problem of insufficient computing power in control computers is to replace them with higher-performance computer chips.

Moreover, the computer chips required for rockets are not too demanding for computing power compared to computer chips in other fields.

However, because the working environment of the rocket is very harsh, the stability requirements for the computer chip are relatively high.

The computing chip as the core could not meet the requirements of use, and Qin Ming naturally contacted the computer, but the result was not ideal.

"The latest chips that they can come up with now can barely meet our job requirements."

"However, the current stability of the latest chip is not very good, especially in the process of rocket operation, to withstand high acceleration and strong vibration, it is easy to cause chip failure."

Zhang Xingyang can understand Qin Ming's statement, but in fact, there is no solution to this matter.

"If the vibration damping system of the control computer is strengthened, and the computer chips are connected in parallel, can the problem of insufficient computing power of the control computer be solved?"

Zhang Xingyang nodded at Qin Ming, who was a little into the tip of the horns.

"But the size and weight of the control computer will increase by several times, will it exceed the pre-designed values in the development plan that was previously formulated?"

Of course, Qin Ming didn't do this before, naturally not because he was a stupid person, but because he would have the problem of being overweight when controlling the computer in this way.

Of course, this is also the fact that he is not clear about the current rocket propulsion system, and the thrust is actually more than enough.

If it weren't for the first-stage rocket, it would have been necessary to retain a part of the fuel after it had been disengaged, which would have been used to slow down the rocket during the landing process.

In fact, the load of the rocket can be raised even higher.

So now the weight of the control computer is a little overweight is not a big problem, and the thrust of the rocket is actually enough.

"Don't worry about the overweight of the control computer, Geng Bo's current thrust of the propulsion system can fully meet the requirements of the control computer after it is overweight!"

Zhang Xingyang said categorically, giving Qin Ming a reassurance.

After hearing Zhang Xingyang's assurance, Qin Ming also laughed:

"If you don't care about the weight, then the problem of controlling the computer is easy to solve."

"I can also guarantee that in less than a month, I will be able to get the attitude adjustment system right!"

Zhang Xingyang knows Qin Ming's personality, in fact, he is a very serious person, and he never says anything that he is not sure about in terms of research.

"Now among the several major systems of the rocket, your control system is missing."

"As soon as your control system is completed, we will be able to carry out a complete rocket production test work in no time!"

"Our control system research laboratory will definitely not slow down the overall research and development progress of the rocket!"

(End of chapter)