Chapter 699 Decision (Second Update)

PS: Today's 10,000-word update is over. I wish you all a happy May Day holiday. I will continue to update 10,000 words tomorrow.

The next day, Liu Hai met Ni Nan at Fenghuo Technology Company. Liu Hai had read the relevant information yesterday, but Liu Hai was not satisfied with what was said in the information.

"I have read the information you gave yesterday. Is there any way to further improve the transmission rate of optical fiber?" Liu Hai originally engaged in this project to promote the development of domestic semiconductor technology. Liu Hai would definitely not be satisfied with simply using the existing optical fiber technology, after all, such a large investment.

"This is difficult, especially in our domestic optical fiber manufacturing technology. If we introduce foreign technology and research talents, it should be able to be improved again." Ni Nan answered when he heard Liu Hai's words.

"In addition, there are modulators and other things. After all, it is such a large project." Liu Hai asked again.

"The main line is all optical fiber. I personally think there is no problem at all, but if the boss wants more information, more professional investigation and research are needed." Ni Nan said this with a guilty conscience, because the information submitted to the boss yesterday was mainly his personal opinion.

To replace the cable solution with the optical cable solution, the technical standards involved, as well as the relevant training and upstream and downstream related industries, are a very complex system.

Before the boss spoke, Ni Nan could not produce a more professional result, because this was not something that one person could decide, and he needed to find technical personnel in related fields to demonstrate.

"Then you should investigate first. You should also make a cable-to-optical cable solution. Our goal is to promote the development of semiconductors, not to make do with existing technology. When formulating technical standards, it might as well be a little higher." Liu Hai reiterated his thoughts.

"In fact, at this stage, the transmission rate of cables is enough, but considering future development, I personally think that optical cables have a better future."

"In the future, this will become the world's largest optical fiber network application system, which will help us to promote it in other countries around the world and accumulate a lot of experience." Ni Nan said again.

"Don't worry about investment. If you can use the optical fiber network, then use the optical fiber network." Liu Hai certainly knew that the future development direction was the optical fiber network, and he would definitely do it now.

Even if the investment increased by 50%, or more, Liu Hai could accept it.

This is equivalent to skipping the cable network step and directly entering the optical fiber network.

Fiber optic networks have many advantages. First, the transmission rate is high, then the power consumption is low, and the last point is also the most critical, it is not afraid of theft.

Although the possibility of things being stolen on the railway is not high, there are still many.

The cables are all copper.

Of course, the cable solution also has many advantages. First of all, the solution is mature, can be laid on a large scale and quickly, and the construction process is not as complicated as optical fiber.

Of course, there are also disadvantages, that is, high power consumption, there is a risk of theft, and the other is the problem of updating and iteration.

"Boss, I propose to build a fiber optic network inside the Oriental Heavy Industry University for experiments." Ni Nan proposed an idea.

"Of course, including the computers equipped, these can be included in the budget."

"In addition, the parameters of the computer chip I mentioned to you last time, how long will it take to produce the finished product?" The computer chip that Liu Hai mentioned last time was the classic 386 chip of the generation.

"I can only say that the laboratory is fully engaged in research and development!" Ni Nan is a technical talent. When he heard Liu Hai ask this, he answered like this.

"Yeah!" Liu Hai nodded. Anyway, the 386 chip was not launched by Intel until 1985.

If we can develop it first during this period, it will be better. If we can't develop it first, we will have to buy technology licenses.

"In addition, you should also find someone to sort out the patents and technologies in optical fiber communication. You should buy all the licenses that should be purchased abroad, especially the basic ones, otherwise we will be easily strangled when we develop." Liu Hai said again.

"Okay, boss." When Ni Nan heard Liu Hai say this, he knew that the boss had decided to replace the cable solution.

At the same time, he secretly made up his mind to go back and urge the guys in the chip laboratory. After all, the boss bought chip architecture licenses and technology. The boss was willing to invest so much, and everyone should be willing to work hard.

"In addition, when making this plan, try to use our domestic related things as a substitute. If the domestic products are really not enough, then buy imported ones. Of course, we can license the technology, or even buy it back and produce it ourselves." Liu Hai nodded and said again.

"I will give the boss a detailed plan as soon as possible!"

"Well, the project plan should be a little more detailed, including technical training, construction training, etc."

"Understood, boss." Ni Nan left after he finished speaking. He thought the boss would let him talk more, but he didn't expect the boss to ask only this little thing. It was a pity that he had prepared a lot of materials.

At the same time, he was relieved because the boss was not an expert. If it was purely from the cost point of view, it would be most cost-effective to use cables, and the laying speed would be the fastest, because everything was ready.

There are still many technical problems in the optical cable area. When laying the network, the progress may not be so fast, because some problems may be discovered only in large-scale applications.

Optical cables are now only experimental in foreign countries and in China.

The most important thing is that Ni Nan is afraid that the investment in the optical cable project is too large and the boss does not have that much money.

If Ni Nan knew that Liu Hai still had several hundred million dollars in funds, he would not be so worried.

If he knew that Liu Hai could earn more than 1 billion dollars a year, he would have bolder ideas.

The reason why Liu Hai did not ask about the detailed technical aspects was because he did not know much, and there were relevant explanations in the information yesterday.

Of course, the most important thing is that Liu Hai knows the general direction of the future. Although there are many difficulties in installing optical cables now, once a breakthrough is made, we will be at the forefront.

Just like our phased array radar directly jumped to active phased array radar.

And because of technological development, the bald eagle directly installed phased array radar, but how to say this thing, it is impossible to eliminate this product after it is manufactured this year for three or two years.

The parliament will definitely not agree to such a plan. At least you can use it for a few more years. This has led to the bald eagle lagging behind us in active phased array radar technology.

Of course, we also experienced many difficulties when we directly installed active phased array radar.

But when Liu Hai traveled through time, small active phased array radars were already used to monitor wild animals destroying crops, so what about more advanced military models?

Liu Hai had no doubt that in the future, individual soldiers would be able to carry active phased array radars, so that people would really have clairvoyance and hearing.

Liu Hai left Fenghuo Technology Company after Ni Nan left. Liu Hai did not manage the general management of the company at all, but only managed the R&D department.

Anyway, this company is also a confidential company, and there is almost no chance for someone to get involved in it. If anyone wants to do something in it, there will be serious consequences waiting for them.

Liu Hai is not worried about the development of semiconductors in our country. Even if he invests hundreds of millions of dollars every year, it is impossible if he still cannot pull up this industry.

In history, at this period, not to mention hundreds of millions of dollars invested in the semiconductor field, how much is the entire foreign exchange reserve?

Back in the factory, Liu Hai still came to the telex laboratory of the private plane.

The fly-by-wire control system consists of a joystick and force-sensitive sensors, various input signals and feedback sensors, flight control computers, servo steering gears and boosters.

This is also closely related to semiconductors because if you want to know the current state of the aircraft, you need to apply sensors on a large scale and in a wide range.

To put it bluntly, it is to let the pilot understand what the aircraft is like now and what attitude it will present when operating it.

Of course, the fly-by-wire system is not omnipotent. The fly-by-wire system will also be interfered with and sensor failures will occur.

Speaking of sensor failure, the biggest loss is the Bald Eagle's B2 bomber, because the rain sensor is wet, which makes the sensor transmit data incorrectly, and then causes attitude control errors during operation, and eventually crashes.

So to avoid this kind of error, the fly-by-wire system is not single-channel, but two-redundancy, three-redundancy or even four-redundancy.

The earliest civil airliner was the Airbus A320, which adopted fly-by-wire flight control and static instability design.

It consists of a flight control system composed of 7 computers, including 2 elevator/aileron computers, 3 spoiler/elevator computers and 2 flight stabilization computers.

When Liu Hai crossed over, the fiber optic transmission system had a stronger anti-interference ability than the fly-by-wire system.

Liu Hai planned to make this fly-by-wire laboratory bigger and stronger, because this is the trend of future development.

Start with small private aircraft, and then gradually expand to other aircraft.

This will avoid taking too big a step at once and causing trouble.

Of course, the current fly-by-wire system is only in the laboratory, and it will continue to be tested and optimized after it is put on the plane.

Because the laboratory can only simulate the flight posture, you have to fly in the sky to get complete experimental data.

The reason for backing up a hydraulic control system is that you don’t know whether the fly-by-wire system will have bugs, because bugs can only appear under the superposition of various conditions, so no one knows whether the fly-by-wire system will have bugs under various coincidences after it is put on the sky.

Some of the air crashes that occurred in history were caused by system problems, that is, under the superposition of various artificial or natural conditions, its system bugs will appear.

When civil airliners first used the fly-by-wire system, there was also a backup mechanical control system.

Even if Liu Hai simulated the relevant data through the software system of the aircraft carrier space, it cannot be said to be completely correct. Experiments and applications are always a little different.

Liu Hai returned to the slum at night. People in the yard were not surprised by Liu Hai's return. Liu Hai would come back every three or five days.

Liu Hai came to the basement, and then entered the aircraft carrier space, and took out the novel to read, taking notes while reading, such as the relevant technology of coenzyme 10.

"Don't mention it, this is much better than reading papers!" Liu Hai read and copied happily.

Because the timeline in the novel is 1982, Liu Hai is not in a hurry at all.

Moreover, this novel quotes a lot of paper data, which makes Liu Hai know which papers to look for when he gives directions to his junior sister in the future.

It is much better than Liu Hai flipping through those paper magazines and those medical books.

"Junior sister will take this path in the future!" Liu Hai smiled in his heart, and he would not give his junior sister any other advice in the future. It would be enough to give his junior sister guidance according to the things in this novel.

After reading novels for several hours and summarizing a lot of things, Liu Hai decided to stop because he thought these things were not enough for his junior sister to use for several years.

"The next step is to continue dismantling the Hornet!" Liu Hai prepared to dismantle the Hornet carrier-based aircraft.

Of course, Liu Hai mainly worked on the hardware system. As for the software system, he would take his time.

After leaving the aircraft carrier space, Liu Hai stretched his body.

While Liu Hai was stretching in the basement, in a base of the Tocharian country Fat Bear, a man was smoking and drinking in front of the radar display screen.

During the day, everyone finally relaxed, because once it was night, there would be no sleep in the base.

At night, there was either the sound of sniper rifles or the disgusting sound of gasoline engines flying through the sky.

However, with the continued high-intensity blockade of the border by Fat Bear, the sound of dozens of flying motorcycles could be heard every night before, but now basically only one or two can be heard every night.

But the damn sniper rifles sounded again, those damn guerrillas, they would use sniper rifles to shoot everything they could see from a long distance.

Once this sniper rifle sounds, everyone quickly lies down, because once hit, it's over.

Suddenly, the radar soldier saw a flash of light on the display screen, and was so scared that he dropped the cigarette in his hand.

He quickly picked up the phone: "Bakirov, did you hear any sound?"

The radar soldier called the observation post 15 kilometers away. In order to deal with the attack of the small motorcycle, Fat Bear set up observation posts around the base. These observation posts heard the sound of the flying small motorcycle in the air and gave the base an early warning.

"Andre, are you drunk? If there was a sound, I would have called you a long time ago. There is no sound in this damn sky." At the observation post 15 kilometers away, Bakirov was bored hiding in the concrete sentry post.

To be precise, this concrete sentry post is like an underground bunker, surrounded by a lot of sandbags, almost covering the entire sentry post.

Because those damn guerrillas had RPGs, rifle grenades, and even heavy sniper rifles. Fortunately, the observation post was on a steep mountain. Even so, these soldiers did not dare to show their heads and could only observe the surrounding situation at any time through the periscope.

"Well, maybe there is something wrong with my old friend." Andre looked at the signal on the radar and found that it was completely different from the signal characteristics of the previous flying motorcycle, so he turned off the radar and restarted it.

"Andre, don't finish the wine. Wait until I come back from my shift. If there is no wine, I will crush your balls." The soldier at the observation post was still teasing on the phone.

"Haha, you deserve it. There is no wine in this damn place." Andre laughed.

"Oh, it's broken." Andre chatted with the other party and waited for the radar to restart, but when the radar was turned on, Andre slapped his forehead.

Because there were a bunch of light spots on it, and the direction of the light spots was the direction of the observation post that was talking to me. If there were really so many flying motorcycles, I could hear the sound in the microphone.

Since there was no sound, the problem must be with this radar.