Return to the red age

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 the cable is enough, but considering the future development, I personally think that the future of optical cables is better."

"In the future, this will become the world's largest optical fiber network application system, which will accumulate a lot of experience for our promotion in other countries around the world later." Ni Nan said again.

"Don't worry about the 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 hundreds of millions of dollars in funds, he probably wouldn't be so worried.

If I knew that bangs could earn more than 1 billion US dollars a year, I would probably have bolder ideas.

The reason why Liu Hai didn't ask about the detailed technical aspects was because he didn't know much about it, and there were already relevant instructions in yesterday's information.

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

Just like our country's phased array radar jumped directly to active phased array radar.

As for the Bald Eagle, due to technological development, the phased array radar was directly introduced first, but how to say this thing, it is impossible to eliminate this product after three or two years of production this year.

Congress will definitely not agree to such a plan. At any rate, it will take a few more years to decide. This will cause the Bald Eagle to lag behind us in terms of active phased array radar technology.

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

But by the time Liu Hai crossed over, small active phased array radars were already being used to monitor wild animals damaging crops, but what about more advanced military models?

Liu Hai has no doubt that in the future, individual soldiers will be able to carry active phased array radars, so that in the future people will really become clairvoyant and obedient.

Liu Hai also left FiberHome Technology Company after Ni Nan left. Regarding the general management of this company, Liu Hai had no control at all, only the R\u0026D department.

Anyway, this company is also a confidential company, and there is almost no chance of someone trying 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 at all about the development of semiconductors in our country. He invests hundreds of millions of dollars every year. If he cannot stimulate this industry, it will be impossible.

During this period in history, let alone hundreds of millions of dollars invested in the semiconductor field, how much were the entire foreign exchange reserves?

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

The fly-by-wire control system consists of a steering column and a force-sensitive sensor, various input signals and feedback sensors, a flight control computer, a servo steering gear and a booster.

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

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

Of course, the fly-by-wire system is not omnipotent, and the fly-by-wire system will also be subject to interference and sensor failure.

When it comes to sensor failure, the biggest loss was the Bald Eagle's B2 bomber. Because the sensor was wet due to rain, the data transmitted by the sensor was incorrect, which then caused attitude control errors during operation and eventually crashed.

Therefore, to avoid this kind of error, the telex system is not a single channel, but has two redundancies, three redundancies or even four redundancies.

The earliest civil aviation passenger aircraft was the Airbus A320, which adopted fly-by-wire flight control and a statically unstable design.

It has a flight control system composed of 7 computers, including 2 elevator/flap computers, 3 spoiler/elevator computers and 2 flight stability computers.

When Liu Hai traveled through, the optical fiber transmission system was already more resistant to interference than the telex system.

Liu Hai plans to make this telex laboratory bigger and stronger, because this is the future development trend.

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

This will prevent you from taking too big a step and pulling your eggs.

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 flight postures, complete experimental data can only be obtained by flying in the sky.

The reason why you need to back up a hydraulic control system is because you don’t know whether there will be bugs in this telex system. Because bugs only appear under various conditions, so no one knows what’s going on in this telex system. In the future, will there be bugs due to various chances and coincidences?

Some of the air crashes that occurred in history were all caused by system problems. It was due to some man-made or natural factors that combined various conditions that system bugs appeared.

When the earliest commercial airliners used fly-by-wire systems, they also had backup mechanical control systems.

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

Liu Hai returned to the courtyard in the evening, and the people in the courtyard were not surprised by Liu Hai's return. Liu Hai would come back every now and then.

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

"Not to mention, this is much better than reading a paper!" Liu Hai read happily while copying.

Because the timeline in the novel is 1982, Liu Hai was not anxious at all.

Moreover, this novel cites a lot of paper data, which will allow Liu Hai to know which papers to look for when giving directions to junior sister in the future.

It's much better than Liu Hai looking through those papers, magazines, and medical books.

"Junior sister will take this path from now on!" Liu Hai laughed in his heart, and he will not give any other guidance to junior sister in the future. It is enough to follow the contents of this novel and guide junior sister the way.

I read the novel for several hours and summarized a lot of things. Liu Hai saw that these things were no longer enough for his junior sister to use for several years, so he decided to stop reading.

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

Of course, Liu Hai mainly works on the hardware system. As for the software system, we will take our time.

Liu Hai stretched out after leaving the aircraft carrier space.

When Liu Hai was stretching in the basement, in a base of Fat Bear in Tocharo, a man was smoking and drinking in front of the radar screen.

It's hard for everyone to relax during the day, because once night comes, it's hard to get a good night's sleep inside the base.

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

However, with the continuous high-intensity blockade of the border by Fat Bear, the sound of dozens of flying motorcycles could be heard every night in the past, but now you can basically only hear one or two a night.

But the damn sniper rifles are ringing again, those damn guerrillas, they will shoot everything they can see with sniper rifles from far away.

Once this kind of sniper rifle fires, everyone gets down quickly, because once they are hit, it is over.

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

He quickly picked up the phone: "Bakilov, did you hear anything?"

The radar soldiers called the observation post 15 kilometers away. In order to deal with the attack by the scooters, Fat Bear set up observation posts around the base. When these observation posts heard the sound of the scooters flying in the air, they would give the base an early warning.

"Andre, are you drunk? If there was a sound, I would have called you. There is no sound in this damn sky." At the observation post 15 kilometers away, Bakilov was bored. Hiding inside the outpost of the concrete building.

To be precise, this concrete post is like an underground bunker. There are many sandbags piled around it, almost completely covering up the entire 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 take the lead and could only observe the surrounding situation at any time through the periscope.

"Well, maybe there's something wrong with my old friend." Andri saw that the signal on the radar was completely different from the previous signal characteristics of the flying motorcycle, so he turned off the radar and then 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 alcohol in this damn place." Andre laughed.

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

Because there are a bunch of light spots on it, and the direction of the light spots is the direction of the observation post that is calling me. If there are really so many flying motorcycles, I can hear the sound in the microphone.

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