For the gift, start research and development of graphene batteries

Chapter 98 It's a big gift bag, it's been a long time
For the Smart Driving Challenge project, the news that Jiang Ming was appointed as the project manager has been announced.

The members of the project team were all stunned. It was the first time that the project manager was held by an outsider.

And I heard that Jiang Ming only came to the project team recently, and his technical strength is average.

Compared to the astonishment of others, Zhang Ru, the director of software, and Liu Ming, the director of hardware, admired Jiang Ming very much.

In order to let the team members better understand the software architecture, Jiang Ming called the two supervisors and explained his ideas to them.

After all, those who just read the project book may not understand it well.

In the process, the two were impressed by Jiang Ming's unique insights.

"You said, can we not consider the steering wheel in the mass-produced cars in the future?"

During the explanation, Jiang Ming asked Liu Ming.

"If you don't need a steering wheel, how do you control the vehicle?"

Liu Ming didn't understand.

"With automatic driving in the future, you don't have to drive yourself, you just need to tell the system where to go."

Jiang Ming explained.

"There's a problem here. It's fine if there are place names, but if there are no place names, how can you drive over such a corner place? You can't say, go forward and back, and give voice instructions like this?"

Ming Liu proposed a practical application.

"Well, that's a problem."

Jiang Ming admitted that he hadn't thought of it.

Instead, it can be realized by using holographic simulation, only by projecting the screen, and then the driver can simulate the operation in it.

Jiang Ming thought of it the next moment.

However, holographic simulation technology seems to be very difficult to implement.

And if you want to combine it with autonomous driving technology, it will be even more difficult.

When the two are combined, it becomes artificial intelligence.

It would be great to have artificial intelligence. In terms of sorting out data, searching for data, and recording, artificial intelligence has a very big advantage.

Unfortunately, artificial intelligence has very high requirements for knowledge.

His self-driving technology has just reached the point of a little success, and he is still far away from the inheritance of artificial intelligence.

Forget it, let's not think about these for now, it's a bit far away, let's finish the challenge first.

Because Jiang Ming took the lead, Jiang Ming made a lot of improvements to the hardware of the vehicle.Added some security devices.

For example distance sensor, side impact sensor.

These sensors don't cost much, but they are of great use in improving safety.

Jiang Ming admitted that he hadn't thought carefully before, and was a little too optimistic about pure visual perception.

Jiang Ming thought about it again. Adding distance sensors will improve the safety performance of the autopilot system, making it more suitable for commercial applications.

In this way, the system of the autonomous driving challenge gradually improved over time.

It's just that as the project progresses, more and more difficulties are encountered in the development of the automatic driving system.

Zhang Ru admitted that he had miscalculated. He underestimated Jiang Ming's new self-driving system, which was far more complex than previous projects.

In order to catch up with the progress of the project, Zhang Ru transferred more than twice the number of people originally planned to write the software.

It's just that the workload can be solved by stacking people, but the difficulty is Zhang Ru.Entering the field of autonomous driving technology, Zhang Ru felt powerless for the first time.

"Jiang Ming, this is a corresponding problem with the software, please take a look, is there any solution?"

There was no other way, Zhang Ru could only find Jiang Ming and seek a solution.

After all, Jiang Ming is the project manager and is responsible for the progress of the entire project.

Although Zhang Ru recognized Jiang Ming's attainments in software architecture, Zhang Ru was not sure whether Jiang Ming could solve the details.

Besides, being hit by Jiang Ming before, Zhang Ru was unwilling to admit defeat in her job, so she never looked for Jiang Ming.

But the difficult problem has not been solved, and Zhang Ru can't bear it anymore.

"Oh, let me see."

After a few days of leisure, Jiang Ming was surprised to see Zhang Ru coming.

During the recent contact, Jiang Ming also understood Zhang Ru's personality.To be honest, Zhang Ru is a pretty good person, but she has a bit of a strong personality, and she has to fight for everything.

If you don't consider workplace factors, this is an easy person to contact.

But the workplace is like a battlefield, how can it be non-competitive, no one wants to fall behind others for no reason.

Looking at the densely packed questions in the form, Jiang Ming also felt a little speechless. How long has it been saving for? Why are there so many? This is a joke.

To know the problems in the software, it is still necessary to solve them in time.

Because of software problems, they are generally chained.This cannot be solved and will have a great impact on subsequent strategies.

With so many problems, it is strange that the project can be pushed forward.

"Give me a big gift bag when you come up, have you saved it for a long time?"

Jiang Ming said sarcastically.

"I"

Zhang Ru wanted to explain, but after a long time, I still didn't say it.

I can't say that I want to be strong and think that I can solve it, but in the end I didn't research it, so I came to you.

"Don't me, me, let's see the problem."

Jiang Ming motioned Zhang Ru to sit next to him, and then discussed specific issues.

After Jiang Ming really came into contact with the problem, he felt that the problem was difficult.

Zhang Ru's technique is really good.In her hands, there are so many difficulties that have not been solved, which is enough to show the complexity of the autonomous driving system designed by Jiang Ming.

Of course, the program of the automatic driving system itself is more complicated.Otherwise, it would be impossible for domestic large and small automakers to drive the system, which would be at the highest level of L2.

It's not that the car factory doesn't want to invest more energy. It's really difficult to produce results without long-term research and development.

As the architect of this system software, Jiang Ming still has a great advantage in dealing with problems in the software.

"Aiming at the data exchange of blockchain servers, it is recommended to adopt a multi-point parallel data structure. This structure has outstanding advantages in terms of data timeliness and security. Moreover, in terms of data redundancy, it has a good Performance."

Jiang Ming pointed to the first question and said to Zhang Ru.

"Multi-point parallel data structure, although this is relatively partial, there is no problem in its implementation. However, the multi-point parallel data structure may not be able to meet the requirements in terms of data flow. The total capacity limit is there, and our data requirements are If it’s too big, there will be problems.”

Hearing Jiang Ming's explanation, Zhang Ru thought for a moment, and then said.

"Then you can try the diamond-shaped data transmission mode, it should be able to solve this problem."

Jiang Ming reminded.

"Oh? Diamond data transmission mode?"

Zhang Ru was stunned for a moment when he heard this word, and then he came to his senses.

Good guy, Zhang Ru has heard of this diamond-shaped data transmission mode.It's a transmission mode that can't be more biased. I didn't react just now, but it made Jiang Ming laugh.

It’s just that this data transmission mode, Zhang Ru remembers, seems to be a problem, otherwise, it’s impossible for developers to not use it.

"But this diamond-shaped data transmission mode, according to the research, seems to have a problem with the stability of the data, and it has not been resolved yet."

Zhang Ru also said this with a frown.

"That's because you haven't studied this data transmission mode thoroughly. The result of high-speed data transmission will inevitably bring about a decrease in data stability. As long as this problem is solved, it will be a good solution."

Jiang Ming said bluntly.

"This"

Zhang Ru is a little speechless, if it is so easy to solve, don't we all use this model, what do you need to say?Isn't it because the industry can't solve it, so it is abandoned.

Seeing that Zhang Ru was speechless, Jiang Ming stopped embarrassing her, but continued:

"The instability of the rhombus is because it has four nodes for transmission. Although the four nodes are symmetrical, changes in the data flow will also affect its stability. There are two measures for this problem."

Zhang Ru listened attentively.

"The first one is to add a stabilizer. Write a special program to balance the internal data flow and make it stable."

"The second is to add nodes. Isn't it just four nodes now? You can add four more nodes at the corners. In this way, it becomes 8 feet. Compared with before, it is much more stable. "

"oh, I see."

After hearing Jiang Ming's words, Zhang Ru thought about it and felt that it made sense.

"Then can both methods be used, so as to increase the data transmission speed and keep the data stable?"

Zhang Ru raised a point.

"There is no problem in theory, but the stabilizer itself balances the data flow. If the data flow is too large, it cannot handle it. In this case, no matter how many feet are added, it is of little use."

Jiang Ming gave his opinion.

"Oh, I got it."

At this time, Zhang Ru was like an obedient student, earnestly asking Jiang Ming for advice.

Next, Jiang Ming led Zhang Ru to discuss all the issues one by one and gave his opinions.

Even though Jiang Ming was so fast, it took the two of them nearly a day to finish their discussion.

After the problem was finally resolved, Zhang Ru's attitude towards Jiang Ming made a 180-degree turn, and he admired Jiang Ming's skills quite a lot.

"Jiang Ming, you are so skilled, why don't you come to our research institute. I believe that with your participation, the products of our research institute will be launched to the market faster."

Zhang Ru invited Jiang Ming like this.

"Forget it, forget it, autonomous driving is just a hobby."

Jiang Ming declined.

"Forehead"

Hearing Jiang Ming say it was just a hobby, Zhang Ru was a little bit shocked.Those who co-author a career are not as interested as others. This time is too crazy.

"Okay, but if there is a chance, I still hope you will come over."

Zhang Ru warmly invited and made the last effort.

After bidding farewell to Jiang Ming, Zhang Ru brought the solution and convened a team to discuss software design issues.Because Zhang Ru already knew how to solve it, the project will go smoothly.

It didn't take long, and the sample of Xiake Academy's autopilot system finally came down.

"Here, Mr. Jiang, this is our testing plan. We plan to finish testing all items within three days."

In the testing ground, Liu Ming handed one of the test plans to Jiang Ming and said.

"Hey, is there anything else you want to add?"

Liu Ming asked routinely.

Jiang Ming took a look at the test plan. It was very detailed. If it can all pass, the final product must not be too bad.

But after watching for a long time, Jiang Ming always felt that something was missing.

"Why is there no road test?"

Jiang Ming asked.

Isn't that right? In the test plan, all the autonomous driving tests are performed at the test site, and there is a lack of complete road tests.

A self-driving vehicle, most importantly, is unmanned and truly drives on the road.

Nothing is complete without testing it on the road.

"That's right, Mr. Zhang, this autopilot challenge is a closed event. Within the scope designated by the organizing committee, limited autopilot tests will be conducted without involving real road conditions."

Liu Ming said.

"The automatic driving system we made is not only for the challenge, but also for the purpose of commercialization. Road tests are still required."

Jiang Ming said.

"And not only to do it, but also to do it in detail, and to do it on as complicated a road as possible to achieve the real purpose of testing. But before going on the road, other items must be tested to ensure the stability of the system."

Jiang Ming added.

"I remember that in Kyoto, there is a road marked out for the test of the automatic driving system. I will arrange for people to apply for the next test."

Liu Ming took the words and said.

"Okay, let's start testing according to the test plan."

Jiang Ming said.

"First, it is to test the visual perception function of the vehicle."

Liu Ming said.

When Jiang Ming heard this, he nodded directly.

The visual perception function, as the core function of the automatic driving system, should be tested with emphasis.

These key functions must be tested first and targeted for improvement.

Of course, before testing the core functions, all other auxiliary tests of the vehicle have been passed, and there is no problem.

This time it is a joint commissioning to prepare for finalization.

The test of visual perception function is still relatively complicated, following the idea from simple to complex.

I saw that the engineer arranged a lot of props along the way, including vehicles, dummies, stalls, sundries and other messy things, waiting for the system to identify them.

In fact, when the autonomous driving system was tested before, the corresponding props had been calibrated, and the system could correctly identify objects.

But that is under static conditions, and the recognition function of the system under dynamic conditions has yet to be tested.

At present, the vehicle cannot directly use the automatic driving function. Instead, the engineer drives the vehicle at the lowest speed and slowly passes through the simulated road area for the automatic driving system to recognize.

After confirming that the driving system can recognize objects at slower speeds.The speed of the vehicle will gradually increase before recognition.

In this way, increase the speed step by step until the speed of the vehicle increases to the maximum, and the driving system can still be recognized after confirming it.

(End of this chapter)