Chinese entertainment for engineering students

Busy, setting up tents, building campsites, test flights, collecting data, the laptop has just changed from Laptop to Notebook.

That is to say, it has changed from a size that can be held on the lap to a size that can be held with two hands. LCD screens have also become popular, but the screens are still black and white, and the refresh rate is even more urgent. You can see clearly when the screen is scrolling. remaining traces.

This is what Wang Xu bought for the experimental team. Regardless of the lack of configuration, the price is very scary. The price of one unit is close to 30,000 yuan, which makes Wang Xu almost vomit blood.

It can be said that the development of notebook computers will change rapidly in the future. Until Wang Xu came over, it was still one of the most important electronic products on the market.

At this moment, it should be said that it is the first explosion period of laptop computers. This explosion first started in the West. Their mature business and the emergence of a large number of office software have made mobile office a way to be both efficient and fashionable. The fashion quickly swept the market.

Of course Wang Xu is not trying to follow the trend. Domestic computer office work has just started. Although many departments have bought computers, few people know how to use them. They are just used as decorations.

However, for those engaged in scientific research, this kind of thing is a magical tool in the field. It is such a pleasant feeling to be able to start processing data outside.

Um? How do you feel that you have contributed some strength to the proliferation of 996?

Wang Xu's notebook has been equipped with lithium-ion batteries, which are products that are still under experimentation. The battery cell standard was jointly developed by Shuimu and the Nonferrous Metals Research Institute. It is slightly different from the standard battery. The size is, well, 18650. Larger than AA batteries.

This kind of 18650 battery that appeared in the previous life was actually formulated to adapt to user needs when lithium batteries were not fully mature. It was not a carefully calculated special standard.

But this size also accidentally avoids the embarrassment of people mixing it with ordinary batteries, because lithium-ion batteries are relatively poor safety and require special charging protection circuits to be packaged together, and nickel-metal hydride or nickel-chromium rechargeable batteries cannot be used. circuit.

Moreover, the voltage of generally lithium-ion batteries is relatively high, reaching 3.6 volts, which is much higher than the 1.5 volts of ordinary dry batteries. If the two are the same size, they will cause trouble if they are mixed.

Fortunately, there are no industry standards for lithium batteries at the moment. Standard batteries can be made in any way, so we have to start over and start a new pot, from flat and thin batteries to cylindrical batteries, and Standards have been formulated for various supporting protection circuits.

For this matter, Mizuki and the Nonferrous Metals Research Institute spent a lot of effort to develop a series of standard sizes and finally submitted them to the National Standards Association.

In fact, after the popularity of smart phones in the future, most lithium batteries will become customized sizes and will be directly customized according to user needs, which invisibly raises the threshold for producing mobile phones.

But it’s not that time yet, right now, Xiaori and Huaxia are producing in small batches. This thing is going to explode in production capacity, and there are a lot of things that need to be solved. Among other things, the acquisition of the raw material lithium carbonate is I don’t know how many difficulties there are still to overcome.

Even if mass production technology is available, it will take the next century to truly increase production capacity and complete the follow-up layout.

Of course, there is no problem for Wang Xu to use it here. There is nothing wrong with it except that it is expensive.

The industry is like this. A single move affects the whole body. It is really difficult to make a breakthrough. In the previous life, I kept a low profile for thirty years and completed the industrial upgrading of the entire China. Only then did it soar into the sky in the next ten years or so.

Even in a place where people have been producing shabby things for the past thirty years, how come everything suddenly becomes high-end?

In fact, this is the result of all-round reserves of talent, capital, equipment, technology, management, and policies in the past thirty years. It was only taken advantage of by the massive fiscal releases after the economic crisis.

All Wang Xu can do is to make these preparations more complete. For many things, if you want to appear ahead of the times, the price you pay may not be worth the loss.

Wang Xu watched the test pilots doing the test flight. Li Guoqing even coveted one and flew it himself. In fact, there is really no need to be so strict with drones. It’s just that this thing is not mature yet, and the remote control is still not the same as actually flying a plane. the same.

Therefore, Li Guoqing could only fly twice under the guidance of the test pilot, but this also made this man who had not flown a plane into the sky for a long time happy.

Sometimes a man's happiness is really simple, and operating machinery is definitely one of them. Even if you don't look at an excavator, a bunch of people will gather around to look at it.

It would be even better if you could fly. The popularity of drones in later generations just hit this nerve in men. That is to say, there are many restrictions in China, and flying is not allowed in most places. In the country of Chou, as long as there is a man who loves to play, there is no one who has not played.

Today, he had enough fun, so he could stand by the side calmly and watch Wang Fei hand in hand as a group of men were busy.

He is here to relax, not really to work. After breakfast, he will visit the Mogao Grottoes. A car will take them there. A letter of introduction is required to visit there now. Of course, Wang Xu Nothing is missing.

He is a member of the Imperial Capital Painting Association. Ever since she won the Young Artist Gold Medal, he has become a relatively well-known newcomer in the painting world. Coupled with his unique background, it is easy to get a letter of introduction for the artist.

In fact, she and Faye Wong could even be reimbursed for their travel expenses when they came to collect songs. The system for artists to collect songs has not yet been completely abolished. Artists of certain status will be reimbursed for their travel expenses.

Later, this system was cancelled, and the association's top leaders organized groups to go to various places to collect folk songs, which completely lost its original flavor.

In the past, various associations were official organizations. Later, they were criticized by various people, and they were finally changed to semi-official and semi-private organizations. The result was that after a group of people occupied high positions, they felt worse than before.

As for those real non-governmental organizations, except for the small-scale ones that entertain themselves, basically all of them are cheating money. If nothing else, just take a look at the various weird awards happening around the world right now. Basically, whoever gives the most money gets it.

The gold content of various awards in China in later generations is not high, and it cannot be said that it has nothing to do with the private construction during this period.

Wang Fei is not interested in airplanes. She is more interested in the things captured by airplanes. At the moment, she is watching a small TV next to her. On it is the TV signal transmitted back through the radio. Although it is black and white, it is enough. She was happy.

"Fly to the left, fly to the right, yes, yes, right here, stop, don't shake, and go forward." Wang Fei did not hide her excitement and shouted.

The pilot operating the drone is named Luo Ji. He is a young man who is a student pilot from the Imperial Capital. This young man must be a fan of Wang Fei. As soon as they met, he asked Wang Fei and Wang Xu for their autographs.

Now that I'm working with my idol and jumping around like a child, I don't know if I feel like my dream has collapsed.

Maybe everyone has voyeurism. Wang Fei suddenly noticed that there seemed to be a house in the lens, so she quickly asked Luo Ji to fly over.

Then I took the remote control of the camera and panned the lens, then looked at a house in a ditch and looked at the Spring Festival couplets on the door of the house.

"Can you pull me in a little more?" Li Guoqing's voice suddenly sounded in Wang Fei's ears, startling her. When she turned around, she saw Li Guoqing staring at the small screen.

"Well, yes, look, just press this." Wang Fei, a rare teacher, enthusiastically taught Li Guoqing how to operate the camera.

"Can the specific parameters of this thing be determined?" Li Guoqing looked at the clear image in front of him and suddenly turned his head to ask Wang Xu. Wang Xu was squatting next to them, happily watching his wife playing with the camera.

Wang Xu especially likes Wang Fei's innocent side, which is so innocent and beautiful that people can't help but hug her and rub her in her arms.

Therefore, whenever Wang Fei encounters something that interests her, he always teases her to play, just to see her child-like smile. Her eyes are particularly bright at that time.

"It can be roughly calculated, and it can only roughly determine the position, but it is not very accurate. It depends on how far the drone has flown. The farther away the drone is, the greater the error.

The current distance is calculated based on the starting point, relying on electronic gyroscopes, altimeters, angle meters, compasses and the like, and the error may be as much as ten meters. "Wang Xu immediately understood what Li Guoqing meant, but he still explained with regret that these were just compromises. To accurately locate the position, he still had to rely on Beidou.

At this time, China's Beidou has just passed the demonstration stage, and it will probably take several years to be implemented. Mizuki's participation is quite high this time, because technologies such as micromachines and semiconductor lasers will be used in the system.

It may be a little earlier than in the previous life, but it will certainly not be too much. Generally speaking, it is still the same. This kind of crown jewel really needs the entire crown to be built to be feasible.

"This is also very good. It is enough for guiding artillery. How far can this thing fly?" Guiding the direction of artillery is what the reconnaissance aircraft needs to complete. Isn't this thing the most ideal thing for front-line reconnaissance?

"Well, currently we can only fly a few kilometers, no more than ten kilometers. There are quite a lot of technical limitations. Communication, battery capacity, and computing power are not enough. We can only fly closer and require a lot of manual intervention." Wang When Xu started working on this thing, he was quite confident, but after actually doing it, he realized that now he really has to make do.

"Well, I understand. This thing is a good thing. Why don't you get a fixed-wing one?" Li Guoqing was very surprised. Nowadays, most aerial photography is done by fixed-wing aircraft, and not many helicopters are used. So even if it is a Western shooting The same is true for the content.

"It's better to make movies that can take off and land vertically and hover in the air. I heard that the government is researching fixed-wing aircraft, specifically for reconnaissance. You have to go to the company to find out." Wang Xu revealed a little secret. secret.

After playing for a while, the battery of the plane was about to run out. Luo Ji quickly flew the plane back. Don’t look at it as a big thing. The cost of one is over 100,000 yuan at least. It is not a Taobao product that flew around randomly in the previous life.

Apart from anything else, the high-strength T1400 carbon fiber above has not been mass-produced at all. There are only a small number of laboratory products now, and there are still at least several years of research before large-scale mass production. Except for Wang Xu's cane, Almost all the rest are on these helicopters.

If he really fell, even Wang Xu would feel distressed for a long time.

High-strength carbon fiber cannot be mass-produced at present, but slightly lower carbon fiber can. The reason? There are various aspects. The purity of raw materials, machining accuracy, inspection capabilities, and even the proficiency of workers all have a huge impact on the production line.

Even for a production line that produces lower-strength carbon fiber, it took half a year to debug.

Only in this way can T800-level products be basically and stably produced, but this is already world-class carbon fiber. Even in the small days, it can only produce something similar to this, and no matter how strong it is, it can only be produced in the laboratory.

As for Chou Country, well, it is about the same as Xiaoli.

Therefore, in this life, although China has not announced it, Wang Xu does know that T1400 is the strongest carbon fiber in the world.

In later generations, this thing was a product that only appeared in China after the 21st century. It was upgraded all the way from the T300, but this time, it was the other way around.

The above directly took away the T800 production line, and opened the T500 and T300 to the private sector. For example, the man in Shandong who specializes in producing fishing rods spent a lot of money to directly introduce the T500 production line.

In fact, the civilian market for carbon fiber is also very large, although it is far inferior to materials such as steel and aluminum that can be used everywhere.

But it is particularly popular in the field of sports equipment. After all, this thing is light and strong, and is especially suitable for sports equipment. From clubs and rackets to rowing and rowing bicycles, if you need equipment, you can consider using it. .

However, Wang Xu has no plans to do anything in this field. Although his Wangchao clothing occasionally produces one or two sportswear, the main focus is on casual youth style, which allows people to run, play basketball, and sing rap. What, who said overalls are not sportswear?

Wang Fei regretfully put away the remote control and small TV and placed them in a special box. These were specially designed for drones. Each item has its own special storage device. She has put it away several times. , it can be said that it is easy to master.

After cleaning up, Wang Fei pulled up Wang Xu who was squatting aside.

"Hey, my legs are numb." Wang Xu squatted and chatted with Li Guoqing without paying much attention. As a result, his legs became numb while squatting. He only managed to stand up while holding Wang Fei, grinning and enduring the numbness that slowly passed.

Wang Fei put her arms around Wang Xu's waist and smiled as she watched Wang Xu suffer, but she did not let go at all and helped Wang Xu provide human support.

Wang Xu's legs were numb, but his hands were not. He took advantage of the situation and hugged Wang Fei into his arms. He was wearing thick clothes, but he could still feel the softness of her body. He held her in his arms, full of happiness, and his legs The numbness in my body feels a little lighter.

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(See you tomorrow)