With Pan Wenjun making the decision, and the two professors from the project team agreeing to overturn the previous research direction, the specific implementation was naturally very fast in terms of efficiency.
After the meeting, Pan Wenjun reassigned tasks to everyone and began to follow Xu Yun's design plan.
Xu Yun is naturally responsible for the core content, perfecting algorithms to solve side-lobe problems and optical phased arrays.
At first, everyone was still a little unbelievable, marveling at Xu Yun's terrifying learning talent.
It was not until the plan was actually implemented that they fully understood the feelings of Academician Pan and the two professors.
Not to mention that the previous research direction was just a bit vague.
Even if I finish most of it, I won’t hesitate to start over.
Because the gap between the two is too big.
If their initial research direction can barely keep up with the industry, then Xu Yun's design may lead the world.
The value of possession cannot be measured.
The key is to study according to Xu Yun's design plan. The problems that troubled them will be solved and the progress of the project will be greatly accelerated.
Tang Kang and Qin Hangfei were the quickest to accept it, and they almost turned into curious babies later on.
I have to ask Xu Yun relevant questions every day.
After all, they knew very well that Xu Yun could not stay in the laboratory all the time. It would be difficult to meet again when he returned to Jingzhou. Now, they must make full use of such a good time to learn more advanced technologies from Xu Yun. It's your own thing.
In this regard, Xu Yun refused to accept anyone who came, almost allowing himself to experience the experience of being a tutor and leading a student in advance.
Mainly Tang Kang and Qin Hangfei are project members. The more thorough their understanding, the faster the progress.
In short, it is all about completing tasks and getting rewards.
It is also worth mentioning that although Xu Yun’s design is very complete and no loopholes can be found, there are still difficulties in researching it specifically, such as the chips and precision processing technology required for lidar.
Fortunately, with the joint efforts of everyone, the laboratory finally produced a device in July.
And start the actual test experiment immediately.
…
…
"Today's weather is not very good. Will it affect our test data?"
July 3, 2018, Teito University, on the road outside the campus.
Tang Kang was sitting in the passenger seat of the test vehicle, looking at the moderate rain falling outside through the window. He turned his head to express his concern to Xu Yun and Professor Wang in the back seat.
The solid-state lidar they studied is mainly used in fields such as vehicles, drones, and robots.
Since its performance is tested, it is undoubtedly the most suitable way to install it on the car and actually drive it.
However, lidar uses laser as a signal source. It emits pulses to the target to cause scattering. The light waves are reflected to the receiver and then the data distance to the target is obtained based on the ranging principle.
At the same time, the target will be scanned to obtain all target point data.
After using this data for imaging processing, an accurate three-dimensional image is obtained.
With this principle as the premise, there will also be differences in the reflection distances of different target materials.
Not to mention the special weather now.
There is no doubt that it will affect the lidar test data.
Unable to achieve full effectiveness.
"The actual application of lidar includes extreme severe weather, and our testing must take it into consideration."
"Don't you have confidence?"
Xu Yun took over Tang Kang's words and replied with a smile.
The test time has been set. If it is changed midway, I am afraid it will be delayed for a few days.
It has now entered July. According to the progress of the advanced tasks displayed on the panel, I am afraid that it will be completely ended by the end of this month. He definitely doesn't want to wait any longer.
After discussing this with Pan Wenjun, we decided to continue the rainy day test according to the scheduled time.
"Xu Yun said a lot."
"Only when our lidar can withstand severe weather can it be considered a qualified product and live up to the country's expectations of us." Professor Wang recognized the concept proposed by Xu Yun and replied to Tang Kang with a smile on his face: "Our products use Xu Yun’s design consists of tens of thousands of laser receivers forming an area array, and I believe there will be no problem even in extreme environments.”
"Professor Wang is right. It seems that I am worried too much." Tang Kang put his hand on his head in embarrassment.
Professor Wang didn't say much about this, and immediately gave instructions to Qin Hangfei, who was in charge of driving.
"Xiao Fei."
"Get ready to start."
"Good professor."
Qin Hangfei nodded in response, then started the car and activated the solid-state laser radar installed above.
From the outside, the lidar looks slightly smaller, with the height of the entire cylinder not exceeding ten centimeters, because the surface used for testing does not have any information.
Soon as the vehicle started to merge onto the main road, Xu Yun and Tang Kang each held their laptops to view the three-dimensional images fed back by the radar.
Under the action of software and algorithms, the target points reflected to the receiver are automatically processed to present a stereoscopic image.
It didn't take long for Tang Kang's excited voice to be heard in the car.
"The maximum detection distance is three hundred meters."
"The detection distance reaches 90 meters at 10% reflectivity."
"The point frequency is 198,000 points per second in single echo mode."
“This has exceeded the new test data of Weloda, the leading overseas lidar brand!”
Compared to Tang Kang who was very excited, Xu Yun sat behind him and remained calm with a smile on his face.
Naturally, he also saw the synchronized data.
In fact, it is true that he solved the design problem by overclocking his brain, but he didn't know much about the actual data.
Now that I finally have the result, I feel completely relaxed.
Weloda Company has always been a leading giant in lidar. Now their domestic solid-state lidar has achieved data catch-up. There is no doubt that they have advanced domestic lidar and successfully broke through the technical blockade to complete the project.
Then he only needs to wait patiently for four months to pass and get the mission reward that he has been thinking about for a long time.
"The data is better than I expected."
"This data is already very good. If it were under normal weather, the data would be much higher." Hearing Xu Yun's murmur, Professor Wang turned his head and responded excitedly: "How can you achieve such results in this project?" The first achievement will be specially noted on the final report."
In the past, old guys like them took the lead in projects and had to distract students to answer questions.
This time I used Xu Yun's light experience to win, and you can imagine how I feel.
Xu Yun knew that Professor Wang was right. If it hadn't rained, the data obtained from the test would have been even higher.
However, the current data alone is enough to conclude the question.
In order to ensure the accuracy of the data in the following time, Qin Hangfei drove the car to another road.
at the same time.
LiDAR Joint Laboratory.
In the conference room, Pan Wenjun, another professor, and the remaining project team members watched the screen in front of them eagerly.
Almost as soon as the measured data was synchronized, the expression on his face was instantly replaced by ecstasy.
Cheers immediately erupted in the conference room.
"The data is out."
"Look."
"It is unimaginable that the maximum detection distance in a rainy environment still reaches 300 meters. This data far exceeds our estimate."
"If the weather were tested under normal conditions, the data would probably be even better."
"This kind of data is enough for us to reach the international leading level."
“The stereoscopic image constructed by the algorithm is also very clear, and I believe it will be very popular among users in actual use.”
Looking at the data on the screen and everyone's reactions, Pan Wenjun secretly breathed a sigh of relief. When a smile returned to his face, he turned to look at the professor next to him who was also shocked by the data.
"I said, Lao Li, it was the right decision to overturn and start over, right?"
The professor who was called Lao Li seemed to have thought of his previous attempt to prevent Pan Wenjun from changing his research direction, and now he felt a little embarrassed to respond to this incident.
"Who would have thought that Xu Yun's design plan was so excellent. If I had known about it, I should have called him over earlier."
"yes."
"I really envy those old guys at Beijing University." Pan Wenjun nodded in agreement.
Such outstanding and talented students are naturally the targets that every university wants to compete for.
After all, there are huge benefits to the school as well.
For example, Qinghua's mathematics department may have been in a leading position in the country in the past, but since Xu Yun proved Hodge's conjecture and held a global academic seminar in the Department of Mathematics of Peking University, Peking University's academic status has skyrocketed.
In particular, the Institute for Advanced Mathematics has been established. I believe that more and more students will be willing to apply for the Department of Mathematics at Peking University in the future.
"With Xu Yun's learning speed and qualifications, it won't take long for him to complete his doctoral studies."
"It will be a matter of course to obtain the title of professor by then. Even if we can't recruit people, it would be a good idea to invite them to give lectures a few times a month."
At this time, Lao Li smiled and gave Pan Wenjun an idea that was beneficial to the school.
And these words immediately made Pan Wenjun's heart move slightly, and he fell into silence and murmured thoughtfully.
"That's a good idea."
"I will have a good talk with him another day."
"It's best to let the principal come forward."
After saying that, he seemed to have thought of something, and turned back to focus on Professor Li.
"The results of the test are already available. Now it's time for us to write a final report."
"I see no problem." Professor Li replied with a smile.
…
Xu Yun and the others continued their testing until night, and returned to the laboratory only after obtaining very comprehensive test data.
Xu Yun naturally also learned about the final report.
But in the next few days, while he was patiently waiting for the mission reward, he suddenly received an email from Princeton University, inviting him to Princeton for academic exchanges.
When he held a previous academic report meeting, he promised Professor Deligne to go to Princeton to consult with him if he had the opportunity.
There is really no reason to refuse now.
What's more, being able to communicate with well-known scholars in mathematics was also very helpful for him in the final proof of Goldbach's conjecture.
Thinking that he would go directly from Princeton to de Janeiro to attend the International Congress of Mathematicians, he finally chose to agree to go in his reply email.
(End of chapter)
