made such a big limelight, but it obviously swept Liu Qiangjun's face. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Although everyone did not confirm his statement, seeing that Sun Cheng confidently wrote down the various sources in the document, even Liu Qiangjun, who was still a little indignant, looked ugly.

The atmosphere in the screening room became a little strange for a while, until Wang Zhaokun arrived.

Xu was in a hurry after class, and Wang Zhaokun didn't notice that there was a place on his forehead that was dyed white with chalk.

As soon as he came in and said hello to everyone with a smile, he happily walked to Sun Cheng and sat down near Xu Dong Village, "Hehe, I was just guessing, Lao Xu, will you take him with you!" ”

Because he didn't know the turmoil that Sun Cheng had just caused, after he sat down, he shouted at Liu Qiangjun on the podium: "Old Liu, everyone is here, you can start!" ”

Liu Qiangjun nodded with a stinky face, picked up the document in front of him, which he thought was quite good, and the more he looked at it, the more dazzling he felt, but in the end, he was a teacher who had been trained for many years, and his cultivation was also very good, so he began to speak.

"In recent years, the world's military powers have entered the field of unmanned aerial vehicles, because in the field of aviation technology and materials, I have too many historical debts to be repaid, so for a long time, Daming has paid serious attention to UAVs. In addition to the purchase of a batch of old-fashioned "Scout" tactical UAVs from Israel in the early years, in recent years, only the [Aviation Power Research Institute] has carried out relevant technical research in this regard! ”

He paused, and then continued: "However, a few years ago, I heard that several design plans were put forward by the research institute and failed to pass the review, mainly because the Ministry of War was a little uncertain about the positioning of the drone. At the beginning of next month, a senior member of the military department will come to us for inspection, so the research institute hopes that we can help do a complete strategic and market analysis of drones! ”

"I am responsible for presiding over the project this time, the old rule, I will first throw bricks and lead the way, and talk about my own views!"

As soon as he talked about his plan, he seemed to have forgotten the embarrassment just now, standing on the podium and talking with thoughts, operating the projector from time to time to put some foreign military drone products, commenting and analyzing, and by the way, answering the inquiries of some professors below.

Sun Cheng also sat down and listened carefully, although he has accumulated a lot of knowledge about aviation, it is basically something in writing, if the experience is not a little bit worse than every veteran professor of the Imperial University here.

Half an hour passed in a flash, Liu Qiangjun finally talked about civilian drones, couldn't help but stop, lifted a cardboard box from the side of the podium and placed it on the podium, and finally saw a little smile on his face that had been gloomy for a long time.

I saw that he quickly took out a machine with a large turtle lid on his back and four propellers the size of a bowl and half-held it in his hand, and said with some smugness: "This is the work that my students have been working overtime recently and just completed yesterday." Although it looks unremarkable, it is a well-designed drone. Because the design of military drones is more rigorous, even if we only develop a system platform, it is difficult for us to guarantee that it can be written before the military department comes to inspect it. Therefore, I came up with this product first, and I am ready to show the huge market of UAVs to the Ministry of War from the civilian market at that time! ”

"This turtle's back...... Well, what materials are used for drones and propellers? What is the total weight? How much does it cost? ”

Wang Nian pointed at it and asked.

"The main body is made of ordinary engineering plastics, and the four propellers are made of fiberglass, so the empty weight is less than one pound without loading the equipment, because it is equipped with batteries, not counting the loading equipment, the cost can be controlled below five hundred yuan!"

"Low cost also means poor performance, how much range and speed can the battery provide!"

Deng Changlin frowned, stood up and took a serious look, and quickly shook his head and said, "Lao Liu, how did you solve the endurance of this drone?" Although it is a civilian product, there is no requirement for how high and fast it can fly, but if the battery life is less than half an hour, I think it is not much different from a child's toy. If you want me to say, your drone can fly in the sky for more than five minutes, which is considered to be over-standard! ”

In the end, he has been dealing with aero engines for most of his life, and he only took a look at it and decided that this is not a qualified product.

Liu Qiangjun's face twitched, "Well, because of the urgency, it can indeed only fly for a few minutes at present, but the problem of battery life can be solved by looking for a better battery later!" ”

Xu Dongcun also asked: "What about market positioning?" This little body board can't even fly for long with empty weight, who will it sell it to? ”

"The civilian market for drones is still very extensive, it can be equipped with cameras and even cameras to provide high-altitude aerial data, although the farthest distance we can control so far is only two kilometers, but there are further possibilities in this regard, in the future, we may be able to increase this distance to five kilometers, or even further! In this way, there is not only demand from the people, but also for border defense and anti-narcotics agencies. ”

Although it seems that he is not on the right path with Xu Dongcun, when it comes to work, he still answers seriously and in detail: "In addition, we can also try to improve the structural structure, increase its load, let it help spray pesticides, and extinguish fires on the upper floors of the building!" ”

The others also asked some questions, and Liu Qiangjun was obviously very prepared, and he answered them one by one, of course, he also had to write down a lot of deficiencies summarized by other professors.

So after twenty or thirty minutes of lively discussion, Wang Zhaokun finally noticed that Sun Cheng on the side frowned slightly, looked directly at the drone on the podium as if he was thinking about something, and couldn't help asking: "What, do you have any doubts?" ”

"Hmm!"

Sun Cheng nodded, and after seeing Liu Qiangjun looking at him, his face suddenly became a little ugly again, and he also hesitated, but after all, he couldn't help but be curious, and asked, "Professor, can I also ask?" How do you solve the data transmission of drones, the main control of the platform and the carrying system of different equipment? Is the simplified civilian flight control system used? Or is it a new platform developed based on an open-source system? ”

He thought that Liu Qiangjun would ignore him, but unexpectedly, the other party only frowned slightly, and answered him after a while.

"The data transmission of the drone is controlled remotely via wireless or satellite communication through our newly developed data link system; The main control does use a simplified flight control system; Different equipment needs to be specially customized and loaded. ”

"Why not develop a universal system? Integrate flight control, data transmission, and equipment mounting? ”

Sun Cheng continued to ask, "For example, develop a new drone platform based on an open source system!" ”

"It's not a small tone!"

Liu Qiangjun snorted angrily: "You take it for granted, there are so many open source systems on the market, Linux, Unix, FreeBSD, OpenSolaris, Android, which one do you say is suitable for platform development?" How much manpower and material resources need to be invested? How many years will it take to see results? ”

Sun Cheng opened his mouth, just wanted to tell him that with the current versatility of Android, it can be used directly after a little adjustment.

But when the words came to his mouth, he couldn't help but remember that he had offended him, and he swallowed it back at the moment, and he didn't find himself bored.

snorted coldly, Liu Qiangjun didn't bother with him anymore.

Soon fiddled with the drone, and it seemed that it was ready to let it fly and show the big guys!

Because it was also the first time to get in close contact with a drone, Sun Cheng also followed with great interest, and while looking at it, he did not forget to compare it with the design plan of the ultra-small army individual unmanned reconnaissance aircraft that he had digested in his head.

After Liu Qiangjun fiddled for a while, he quickly signaled everyone to step back with a smile on his face, and then controlled the remote control to make it fly.

With the sound of the buzzing propellers, the drone on the podium quickly and smoothly flew into the sky, hovering back and forth in the projection classroom with his control, sometimes high and sometimes low, sometimes south and sometimes north.

"Can this thing really be sold?"

Xu Dongcun muttered quietly on the side, the more he looked at it, the more he felt that it was like a child playing with a toy and a remote control plane!

Although Sun Cheng was looking at the drone intently, he still listened to his words in his ears, and couldn't help but smile and said: "Teacher, in fact, I am quite optimistic about the future drone market." The domestic market may not be large for the time being, but there is a lot to be done abroad, and even in the military field, maybe it can have amazing performance! ”

"The military field?"

Unexpectedly, Professor Yang Jin next to him had very good ears and actually heard his words.

Sun Cheng smiled and nodded, "I'm just guessing, according to the indicators that Professor Liu just mentioned, although this thing is a civilian drone, it can be used as a reconnaissance aircraft on the front line of the battlefield after adding a camera, especially in the Middle East, where street battles are frequently fought and the military intensity is not high, or some war-torn areas in Africa, it is cheap and you don't have to worry about the supply being cut off, maybe it can have an unexpected effect!" ”

This is the point of view he summed up according to the design plan of the ultra-small army individual unmanned reconnaissance aircraft he obtained before, so as soon as he said it, not only Xu and Yang heard it, but even Zhang Danian, who only heard most of the vagueness, couldn't help but turn his face and praise, "Don't say it, the feasibility is extremely high!" ”

Several people were communicating together, and suddenly heard an exclamation, Sun Cheng couldn't help but look at it, and saw that the drone that was still flying in the air suddenly swayed left and right as if drunk.

He raised his eyebrows, and guessed the problem: "Sure enough, there is a conflict in the system!" ”

As soon as the words fell, I saw that the drone fell headlong and hit a table next to it, knocking out several small cracks in the fuselage.

Liu Qiangjun walked up with a stunned face, picked it up and checked it carefully, and then breathed a sigh of relief, "It's not a big problem, maybe the propeller or somewhere is not tightened!" ”

Sun Cheng suddenly asked, "Professor Liu, this shouldn't be the first time that a plane crashed during a test flight, right?" ”

Liu Qiangjun frowned, "How can you not fall in the test stage!" ”

"No, I mean, you guys didn't find the problem!"

He said calmly, "If I guessed correctly, the compatibility between the flight control system and the data link system is not good, and there will soon be a conflict when it is running, resulting in a logical problem with the main control chip!" ”

"Didn't you guess that, too?" He replied angrily.

Sun Cheng shook his head, "But I'm at least ninety percent sure, there is a computer in the screening room, can you let me connect to the data cable to check it?" ”

Looking at his face, he knew that Liu Qiangjun was going to refuse, and Sun Cheng had to remind: "The military department will arrive in a few days, instead of you continue to find problems with the team after you go back, let me take a look, anyway, there will be nothing missing!" ”

After a pause, he added: "My computer is better than aerodynamics!" ”

Speaking of this, Sun Cheng was also a little impatient.

If he wasn't really interested in the flight control system and data link of the drone, he wouldn't have taken this job boringly.

Seeing that he had said everything about this, several other professors couldn't help but help persuade him.

Liu Qiangjun had no choice but to shove the drone into his hand, "I want to see it, okay." I also want to see how you got such a big breath when you went to do an internship and was still driven back by the research institute! ”

This is too damning to say, not only Sun Cheng's eyes changed slightly, but Xu Dongcun immediately made a cold face, and shouted: "Lao Liu, how can you talk, Xiao Sun is kind enough to help you check the problem, you don't remember it well, why are you still spilling!" ”

He still didn't believe in the plagiarism of the documents that Sun Cheng had mentioned before, so he didn't mention it in his words.

Liu Qiangjun snorted lightly and didn't speak, because the two of them had a temper with each other, and it wasn't a day or two if they didn't go the right way, this was a small scene.

Although he didn't show it, Sun Cheng was also a little angry in his heart.

Straight to the computer on the podium with the drone in his arms, after turning on the computer, he fumbled for a while to connect the drone with the computer, his eyes were fixed on the screen, and his hands immediately crackled on the keyboard and tapped quickly.

As he moved, a page of operations soon appeared on the computer screen.

Liu Qiangjun walked over and only glanced at his lips and twitched slightly, that page was too familiar to him, and it was the system database of the drone.

In other words, in the case of the first contact with the main control system of the drone, the young man in front of him only took a very short time to get acquainted with it, and their whole team spent a lot of effort to get the flight control system.