Chapter 991 Is a Genius and an All-Rounder

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Chapter 991 Is a genius and an all-rounder

Holding the remote control, Zhao Zhongyao directed the model airplane fighter he designed, and began to fly in the sky. Liu Changyun really didn't expect that the model airplane designed by Zhao Zhongyao could really fly in the sky.

Zhao Zhongyao used the remote control to control his model aircraft, doing various difficult movements in the sky. Liu Changyun looked dazzled. He really didn't expect that the model airplane designed by Zhao Zhongyao could not only fly, but also make some difficult moves in the air. The performance of this model aircraft in the air is very free and easy. People can feel that the performance of this model aircraft is very good. It is not easy to design such a model aircraft. Moreover, it is possible to design such an advanced aircraft model aircraft only with certain knowledge of aircraft design.

"Zhongyao, this model airplane fighter you developed is really good. How did you develop it and what is it made of? It looks similar to a real plane." Liu Changyun is now a little curious, he Looking at Zhao Zhongyao, who was still remote control model airplane, said.

"This! This plane is made of plastic steel." Zhao Zhongyao looked at Liu Changyun again and said. "Oh, a kind of plastic steel, is that steel?" Liu Changyun looked at Zhao Zhongyao with some puzzlement and said after hearing what Zhao Zhongyao said.

"Since it is said to be plastic steel, of course it is not real steel. It is just a very strong plastic." Zhao Zhongyao said again.

"That's it. Now, can you tell me in detail how your model airplane was developed. I really want to know about it now." Liu Changyun looked at Zhao Zhongyao again and said.

"Okay, then let me land the plane on the ground first." Zhao Zhongyao said, and then used the remote control to smoothly land the plane from the sky to the ground.

"Zhongyao, the model airplane you designed flies fast and smoothly. I really don't know how you designed it. Are you very experienced in developing model airplanes?"

Liu Changyun now wants to know how Zhao Zhongyao developed such an advanced model airplane. After all, he had never seen such a model airplane before.

"Leader, you want to know how the model airplane is developed!" Zhao Zhongyao put the remote control on the wing of the model airplane, and looked at Liu Changyun again and said.

"That's right, I just want to learn the basics of developing model airplanes. When I was a child, I was very excited about model airplanes and wanted to develop one by myself, but I don't have the ability to do so. Now look at Now that you have developed this model aircraft, I want to know more about it.”

When Liu Changyun was a child, he was very interested in model airplanes. But when he was a child, his family was also very poor, and the country's technology was not developed. For the development of aircraft, there is not much progress. The country's large aircraft are all imported from abroad. Some high-tech model airplanes are also imported from abroad. Ordinary people simply cannot afford such model aircraft. Liu Changyun has only seen these high-tech model airplanes on TV, but has never seen them in reality.

Today, it was the first time for him to really see a model airplane. And it is a very special model airplane. When he saw this special model airplane developed by Zhao Zhongyao, he also wanted to know how Zhao Zhongyao developed such a model airplane. Liu Changyun also wanted to learn from Zhao Zhongyao.

"Okay, then let's go to your office and talk slowly! There is also a lot of basic knowledge about developing model airplanes, which can't be explained clearly in a few words." Zhao Zhongyao looked at Liu Changyun and said.

"Okay, of course, just go to my office!" Liu Changyun readily agreed after hearing Zhao Zhongyao's words.

After Zhao Zhongyao finished speaking, he looked at Liu Tianming again and said, "Director Liu, can you help me move this model airplane to the car!"

After hearing what Zhao Zhongyao said, Liu Tianming smiled and said: "Why not, I won't help you here, who will help you." Carried it into the car.

The three of them went upstairs again and came to Liu Changyun's office.

After arriving at the office, Liu Changyun put Zhao Zhongyao and Liu Tianming on the sofa.

Liu Changyun himself sat on the sofa opposite. He looked at Zhao Zhongyao now and said: "Zhongyao, now you can tell me some knowledge about the development of model airplanes, I am really interested in these things.

After hearing Liu Changyun's words, Zhao Zhongyao smiled and said: "Okay, then I will tell you some of the knowledge I know about the development of model airplanes!"

After finishing speaking, Zhao Zhongyao paused for a moment, thought for a while, then looked at Liu Changyun and said, "Aeromodelling fighters are mainly composed of two parts: aeromodelling aircraft and aeromodelling remote control. Let's talk about aeromodelling remote control first. Wait a while , let’s talk about the model aircraft.”

After finishing speaking, Zhao Zhongyao thought about it again, and then continued: "Common wireless remote controls are based on different technologies, mainly including infrared remote control and 2.4g remote control. Infrared remote control has the characteristics of narrow direction range and short distance, so the model aircraft remote control Devices basically use 2.4g wireless remote control. So what's the difference? First of all, we need to make a brief introduction to 2.4ghz wireless technology and standards.

2.4ghz wireless technology has now become the mainstream transmission technology of wireless products. The so-called 2.4gh range, this frequency band is free to apply for use all over the world.

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The scope of use is different. The 2.4G frequency is also used as the carrier, and the communication methods derived from different communication protocols will be very different. Only in the amount of transmitted data, there is a difference from 1m per second to 100m per second.

The remote control of the aircraft model uses a kind of wireless protocol in the 2.4ghz ism frequency band, and the remote control protocol is called the 2.4ghz wireless communication protocol.

The 2.4g wireless communication module works in the global application-free 2.4ghhz-2483mhz. Realize the function of automatic frequency scanning when starting up, with a total of 50 working channels. The remote controllers of model airplanes on the market basically use 2.4g wireless communication modules, and the corresponding remote controllers will be equipped with a receiver. The remote control (transmitter) and the receiver need to be paired for use, and those from different manufacturers are generally not compatible, because the transceiver chips and protocols used may be different.

There are differences between domestic and imported remote controls. The difference between domestic remote control and imported remote control lies in the gap in radio technology, and on the other hand, there are too few domestic research and development institutions, and there is no long-term product testing.

The domestic remote control uses relatively cheap electronic components, so the cost is relatively low, especially the receiver, the receiver chip, good receivers are imported chips, so it is very stable, the program is better written, and the cheap receiver chip is relatively Cheap, so prone to accidents.

A very simple example, the potentiometer on the remote control, domestic equipment used domestic potentiometers generally have a service life of 100,000 to 300,000 times, and the potentiometer of imported equipment can reach 1 million times, which directly affects the life of the remote control.

It is generally believed that the workmanship of the remote control is the best, and the circuit layout is very good in all aspects, especially at present, only the jr remote control is equipped with a fuse. If the enthusiast accidentally short-circuits, you only need to replace the fuse, which is more user-friendly. More importantly, jr remote controls are all made abroad, and the quality is guaranteed.

So you get what you pay for the remote control. The expensive imported remote control naturally has its reasons. Cheap domestic remote controls also have reasons for their cheapness.

Now there are more and more manufacturers of domestic remote controllers, and the preferential price makes the threshold of model airplanes lower and lower, so we can choose our own remote controllers reasonably according to our own economic strength. "

After Zhao Zhongyao said the knowledge, he looked at Liu Changyun again and said, "How about it, Minister Liu, can you still understand the knowledge you told me?"

After listening to the knowledge Zhao Zhongyao said, Liu Changyun felt a little half-understood. However, in front of Zhao Zhongyao, he was embarrassed to say that he didn't understand at all. After all, he is a leader and has a college degree, so how can he say that he doesn't understand this knowledge.

Thinking of this, Liu Changyun looked at Zhao Zhongyao and said, "Well! I can almost understand it. It's just that you just talked about the knowledge of the remote control. Can you talk about how to conduct remote control commands."

After hearing Liu Changyun's words, Zhao Zhongyao thought for a while and said, "Okay, let me talk about the flight controller again."

After finishing speaking, Zhao Zhongyao began to give lectures to Liu Changyun again: "The flight control is the soul of the multi-rotor aircraft. So what is the flight control? The flight control is the electronic control part of the aircraft. The full name is the flight controller. The flight control mainly includes Main control processor mcu and inertial navigation module (sensor part).

Compared with aircraft models such as helicopters, quadcopters have the most complicated electronic part. It can be compared with fixed wing and helicopter. On conventional fixed-wing model aircraft, gyroscopes are not commonly used devices. Compared with the direct-upgrade aircraft model that is more difficult to control, if there is no automatic stabilization system, the gyroscope is only used for tail locking. The quadcopter must be equipped with a gyroscope, which is the most basic requirement, otherwise it cannot fly, let alone fly stably. Not only must there be, but all three dimensions must be available, which is determined by the mechanical structure and power composition characteristics of the quadcopter. On this basis, supplemented by a 3-axis acceleration sensor, these 6 degrees of freedom constitute the basic part of the flight attitude stability, and it is also the key core part of the inertial navigation module, referred to as imu. The attitude sensing in flight depends entirely on this imu, it can be seen that it is the core component of the whole model.

The imu perceives the attitude of the aircraft in the air and sends the data to the main control processor mcu. The main control processor mcu will control the stable operation of the aircraft through the flight algorithm according to the user's operation instructions and the imu data. Since there is a large amount of data to be calculated and extremely high real-time control is required, the performance of the MCU also determines whether the aircraft can fly stably and flexibly. "

Zhao Zhongyao told Liu Changyun some knowledge about the main controller of the aircraft model. After Liu Changyun heard this, he felt that he really gained a lot of knowledge. At this time, he really admired Zhao Zhongyao. Originally, he thought that Zhao Zhongyao might not know much about model aircraft. After all, he is just an expert in military industry, not an expert in aircraft research.

But now Zhao Zhongyao told Liu Changyun about the model aircraft knowledge, which Liu Changyun had never heard of.

"Zhongyao, what you said is really good. You are really knowledgeable!" Liu Changyun listened to Zhao Zhongyao's knowledge about model airplanes, and he knew Zhao Zhongyao's knowledge even more. admired.

"Hi! I'm just cramming! In order to develop this aircraft model aircraft, I also learned a lot about aircraft model aircraft." Zhao Zhongyao looked at Liu Changyun again and said.

Originally, Zhao Zhongyao also learned a lot about aircraft model aircraft in order to study aircraft model aircraft when he was at the'Zhuhai Aviation Academy'. After all, a qualified aircraft designer must learn about aircraft model aircraft. It is impossible to develop any kind of aircraft at once. First of all, it is necessary to study a model aircraft and test the performance of this aircraft first.

Performance, look at the advantages and disadvantages of this aircraft. There are only constant revisions to deficiencies. Only after it is developed into a real large aircraft, there will be fewer problems, or no problems.

"You are so good at holding Buddha's feet temporarily, so if you study this knowledge seriously, you will be so good." Liu Changyun looked at Zhao Zhongyao again and said.

Without waiting for Zhao Zhongyao to say anything, Liu Tianming interjected at this moment and said: "Minister Liu, Zhao Zhongyao is an all-rounder! There is nothing he doesn't know. I have been with him for two or three years Yes. In my opinion, Zhao Zhongyao's knowledge is far superior to ours. Let alone us laymen. Even some military experts don't know as much as Zhao Zhongyao. Liu Tianming is also very knowledgeable I was touched. He has been with Zhao Zhongyao for two or three years. No matter what kind of advanced weapon he is researching, as long as Zhao Zhongyao develops it, it will definitely be faster and more advanced than others.

"No, the ak-47 assault rifle developed by Zhao Zhongyao before was very advanced, and now it can be said to account for half of the sales of light weapons in the entire international market. It has created a miracle in the sales of light weapons in history.

Now that the model airplane developed by Zhao Zhongyao is so advanced, I really feel strange. I don't understand Zhao Zhongyao, how did you do this, does your head look different from ours. "

After listening to Liu Tianming's words, Liu Changyun recalled what he had heard about Zhao Zhongyao in the past two years. He also felt that Zhao Zhongyao was not only a genius, but also an all-rounder. There is nothing he doesn't understand.

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