The first Wu Zhiqiang.

The second road is Xuzhou.

The third stroke is Zhao Haohuan.

The fourth Su Shen.

The fifth way is Zhang Peimeng.

The sixth way of work and rest.

The seventh Zhou soldiers.

The eighth thanks for your job.

The ninth chapter of Liang Jiahong.

...

The countdown to start the stadium electronic starting system.

Nine high-speed cameras capture the starter area at 1000 frames per second.

Sushen's steel starter front plate flashes with a 65cm scale laser.

"The front plate is moved back by 2mm, and the left pedal angle is lowered by 0.5°." Zhao Haohuan's also adjusted the starting device according to the instructions of Randy and Ralph Mann. For players with a height of 192cm, the traditional 45° pedal angle will cause insufficient folding of the hip joint. The improved 50° setting allows his torso angle to maintain a 43° gold inclination in the "preparation" posture.

detail.

Decide success or failure.

The Su Shen system has always done this.

This is how it is when Su Shen entered the team.

Xie Zhengye's starting machine has a particularly obvious feature of the rear movement - the rear pedal is 1.02 meters away from the starting line, and the standard is 0.9 meters. This special transformation allows his center of gravity projection point to move forward by 3cm at the moment of gunfire.

The starting device for work and rest still maintains the traditional 78cm front plate distance, but a 5mm rubber pad is installed on the surface of the pedal, which is his favorite starting feeling.

Personal customization.

It's something that will inevitably happen in modern sports.

The Su Shen system takes one step ahead.

These people are all sprinters and deserve such differentiated treatment.

When nine people completed the "Each In Place" command simultaneously, the infrared three-dimensional capture system instantly generated a bone projection.

This is one of the latest achievements of Sushen Laboratory.

The athlete's bone projection can be captured during high-speed exercise.

"What is this?" Yu Weili has now taken the position of Mapletzu Yong and became the head coach. Naturally, there are more and more things, although he has always insisted on practicing it.

But because of the increasing number of care, his energy cannot be only focused on the sprint team, which leads to his understanding of many new things not as thorough as he has been here before.

"This is a good thing," Yuan Guoqiang explained: "The infrared three-dimensional capture system instantly generates a bone projection."

"What...what, what?"

Yu Weili felt.

It seems that there is no problem with these words alone.

The combination of a long word made him feel that it was particularly difficult and unfamiliar to deal with these words.

This is a very normal situation. The brain needs to re-analyze and disassemble and combine unfamiliar words.

"The infrared three-dimensional capture system instantly generates a skeleton projection." Yuan Guoqiang said with a smile: "Xiaotian Laboratory's new thing."

"Having infrared marking point tracking means sticking infrared reflective marking points on key parts of the athlete's body, such as joints, to the joints. Multiple infrared cameras in the infrared three-dimensional capture system will continue to track the position changes of these marking points."

"Adopting the principle of triangulation, using multiple cameras to obtain image information of marking points from different angles, and using triangulation method to calculate the coordinate position of each marking point in three-dimensional space."

"Then it is done to transmit and process data. The marked point data collected by the camera is transmitted to the computer through a data transmission line or a wireless network. The computer uses specific algorithms to filter and reduce the original data, etc.."

"This is how to build a bone model. Based on the principles of human anatomy and kinematics knowledge, each marking point corresponds to the human skeleton structure, and an athlete's bone model is constructed through mathematical models."

"Using real-time rendering and projection, and with the help of graphics processing technology, the built bone model is rendered into a visual three-dimensional image in real time and projected onto the display device."

"The system calculates kinematic parameters such as angle, angular velocity, angular acceleration, etc. of each joint of the bone based on the coordinate changes of the marking points and the time series."

"By bone projection and kinematic parameters, combined with mechanical principles, the dynamic information such as muscle strength and joint torque of athletes during sprinting can be further analyzed."

"During the period, coordinate system will be established and calibrated. Before the system starts, a unified three-dimensional coordinate system needs to be established and cameras and other equipment are calibrated to ensure that the collected data is accurate and consistent under the same coordinate system."

"It has a time synchronization mechanism. In order to ensure the synchronization of data collected by multiple cameras, the system adopts high-precision time synchronization technology to enable the images collected by different cameras at the same time to accurately correspond."

"Continuously optimize data processing algorithms and bone model construction algorithms to improve the accuracy, stability and real-time of the system and better adapt to the needs of complex sports scenarios such as sprinting."

"Oh, by the way, this is called algorithm optimization and update."

He finished speaking in one breath.

Yuan Guoqiang deliberately glanced with his little eyes.

It seems to be saying-

Looks like I said it's right.

I'm not here to praise me.

But after waiting for a while, Yu Feili didn't even speak.

Yuan Guoqiang was a little anxious, but instead turned his head.

It just met Yu Feili's expression.

Is Yu Weili surprised?

surprise.

Yuan Guoqiang actually looked like he was applying for the dish.

So many were reported in one go.

But that's exactly what...

It makes people feel suspicious.

It is true that Yuan Guoqiang is learning new knowledge, but such professional things are spoken out of his mouth.

That's still unlikely.

Yu Weili suddenly said something-

"I'll carry it for a long time."

"It's okay, it's just..."

After saying that, Yuan Guoqiang became embarrassed.

This wave of careful thoughts was instantly pierced by Yu Fei's power.

All of them have to have red faces.

But at least the head coach of the sprint has seen big scenes and can stay in the venue.

He forced himself to say, "I'm not that. It's not the case. You're busy with work, so familiarize yourself with these things in advance. When you ask, I will be able to tell everything in detail, know everything and say everything."

"Don't recite it so hard next time, maybe I will believe it." Yu Weili finished speaking, very curious about these new equipment.

See nine sets of three-dimensional pictures displayed on the screen.

This chapter is not over, please click on the next page to continue reading! Yu Weili suppressed his thoughts and asked in a low voice:

“What are the functions?”

That was the principle just now.

What is the function.

This is the key.

You use something that you can't know how it works.

But you must not ignore the instructions for using it.

For inventors, principles may be the most important, but for users...

Sometimes it is more inclined to the latter.

"Hmm?" Seeing that Yuan Guoqiang didn't say anything for a long time, Yu Weili asked, "Old Yuan, you can't recite the key points."

"Then...how can that be?"

Yuan Guoqiang is still very clear about this aspect.

He also chose the stupidest method.

Let's try to keep up with the progress of these geniuses.

That's...
To be continued...