Chapter 660: Foreplay

"Old Lu, boy, when I tossed this 4-rotor prototype, I didn't have much thoughts at first, it was just a whim."
Tan Zhenhua's opening remarks have already been said just now. At this moment, it is just a repeat of the old tune, but Lu Hesheng knew that he had something to say next, so he nodded in cooperation and motioned him to continue.
"However, when I actually sent it to the sky, I discovered that it turned out that it will have a very wide range of uses in the future, whether it is civilian or military, it has extremely broad prospects..."
Lu Hesheng interjected: "You don't need to talk about these. I can also guess a general idea. What I want to discuss with you is the future technological development."
Tan Zhenhua prepared a long story about being choked on his chest by Lu Hesheng’s words, and he immediately felt very depressed. Unfortunately, he couldn’t get mad about it all the time, so he had to swallow and reorganize the language before continuing to say:
Okay. Well, let’s talk about the technical aspects. I think there are several directions."
"Oh? Let's talk about it?"
"The first is to broaden its flight envelope. From the feedback of actual use, the current mass-produced model has insufficient ceiling or flight speed, such as in the typical mountainous environment of Afkhan. The use is restricted by many altitudes. This is also the most common problem reported by users after the delivery of the first batch of aircraft. The main reason is that it is restricted by the performance of the motor. If it can be matched with a motor with better performance, I believe its Performance can be improved again."
Lu Hesheng nodded slightly and said: "This is a good one. However, China's micro-motors are indeed not as advanced in technology. If we can use our US or Japanese-made micro motors, it can indeed greatly improve its performance. Look at this. Very clear. Anything else? Go on."
Tan Zhenhua continued: "The second nature is to increase the flying time of the aircraft. The most direct way to achieve this is to improve the energy density of its energy storage system, which is the battery. This is beyond the scope of the aircraft itself. A breakthrough in the field of electrochemistry can only be achieved. Only when a breakthrough is made in basic materials can substantial progress be made. I personally think that the current development of lithium-ion batteries is the most likely direction."
Lu Hesheng did not answer directly this time, but after thinking about it carefully, he said: "I have also heard that lithium may become the core material of next-generation energy storage products. For a period of time, nickel-metal hydride batteries were the relatively fast-moving ones, so I agree with you in principle, but have reservations about the final solution."
Well, even with Lu Hesheng’s ability, he cannot fully predict the rapid development of technology and materials in the next few decades, so Tan Zhenhua did not start a debate with him, not to mention that he himself actually knows the basics of lithium ion secondary batteries. Limited, I really don't want to be self-defeating, so he said: "On this point, neither you nor I are professionals in electrochemistry, so our conclusions lack professional support. It is better to stop here and reserve our own opinions. "
Lu Hesheng didn't mean to force Tan Zhenhua based on his age and qualifications, so he nodded and said, "Yes, you can continue."
Tan Zhenhua cleared his throat and said, "Then let me talk about the third point, which is communication."
Seeing Lu Hesheng listening intently to his narration, Tan Zhenhua also showed his full spirit: "On the current mass-produced model, communication is actually a very simple process, that is, the drone receives the remote control It’s a relatively simple process, but I think it’s far from enough. Because this remote control operation is actually very limited, the power of the transmitter, the transmitter and the aircraft The distance between the aircraft and whether there are obstacles in the middle that affect the transmission of radio commands constitute key factors that may affect the communication effect. I hope that in the future, with the growth of communication methods and capabilities, the gap between the aircraft and the control equipment will be greatly increased. Communication capabilities, and the most important point among them is that this communication must be transmitted from the current control equipment-the passive reception of the aircraft, which is a unilateral mode, to a two-way communication mode."
"Two-way communication? Why? Is it meaningful and necessary to install complex two-way communication equipment on such a tiny system?"
"This involves the fourth point I want to say, load." Tan Zhenhua replied: "Lao Lu, you should already know that the load on the current model is an optical camera, and this optical camera transmits The only means of data is to recover the film that it has taken. In this process, there is bound to be a time difference in information acquisition. To solve this problem, in my opinion, the only means is to convert optical information into electronic information. Once this conversion is successful, the aircraft can transmit this information back to the control device through communication means in real time. Of course, if you want to achieve all this, you need to consider the communication bandwidth between the aircraft and the control device."
After hearing this, Lu Hesheng rarely expressed his opinion immediately. Instead, he fell into a short silence. After a while, he sighed: "Eric, I thought I had paid enough attention to you, but I didn’t. I still underestimate you. Although you don’t understand many principles in the aviation industry, I was amazed by your forward-looking nature. Moreover, as for the points you just mentioned, at least several disciplines with different professional directions are involved. I’m very curious about the future direction of development. How can you see the future of so many disciplines so clearly at a young age?"
Tan Zhenhua has no way to answer this question. He can't always say that these are things that are commonplace in the second decade of the 21st century, right?
Moreover, explaining to Lu Hesheng that the 4-rotor drone is just a means for him to do what he likes, to attract the old people’s trust and interest in him, just like the foreplay he did before to increase the interest, his purpose Not here at all.
So he pretended to smile shyly and said: "Old Lu, you are so complimenting me so that the kid has no place to show himself. Don’t worry about what is wrong."
Lu Hesheng said with a serious face: "Aircraft, from the first day of its birth, has been a collection of the most cutting-edge achievements in various disciplines. Only those who have been involved in many related fields of natural and engineering sciences can do a real aircraft design. Teacher, so, I was a little surprised when I heard Vivian said that your major was electronics. It’s a shame that people like you don’t learn aircraft design."
After he said this, he shook his head, as if he was really heartbroken because Tan Zhenhua chose the wrong major.
But Tan Zhenhua knew that the opportunity to change the subject that he had been waiting for had finally come.