"The train started. ”

As the cold and sluggish electronic synthesis sound fell, the two headlights at the front of the car instantly lit up and shot straight ahead.

In the cab, many virtual projections also appeared out of thin air, displaying various icons and data that Chen Yu couldn't understand.

Sitting in the driver's seat, Chen Yu looked at the rows of screens and joysticks on the left and right armrests, and asked, "Aren't there steering wheels and accelerators or anything like that?"

"The train is operated by touch throughout the train. Electronic tone replied.

"Tell me how it works. ”

"Manual Mode > Smart Mode?"

Chen Yu hesitated for a moment: "The manual mode has a sense of control, let's introduce the manual mode first." ”

"Yes, conductor. The three-level engineering vehicle of maglev construction is divided into two sets of operation systems, under the passage state, the movement mode is superconducting magnetic repulsion (EDS), which refrigerates the superconductor at the bottom of each carriage and generates a strong magnetic field with the electromagnetic track, and the stator three-phase winding is energized by artificial intelligence control special long stator synchronous linear motor, which generates a moving magnetic field and the train suspension (excitation) to produce an effect to complete the traction ......"

During the explanation, the second artificial intelligence also intimately displayed a set of dynamic videos.

In the video is a working principle diagram of a long stator synchronous linear motor, the complex circuit and line diagram, written with many pole distance, stator lamination, stator winding, linear generator winding, excitation winding and so on.

I'm afraid that Chen Yu won't understand.

Chen Yu thoughtfully, cocked Erlang's legs, and maintained the posture of a wise man, sometimes pondering, sometimes nodding, sometimes pinching his chin, and sometimes sliding the crystal ball......

"Because the number of motor stages is large, the number of slots per pole and each phase is taken q=1;In order to facilitate the arrangement of the winding......"

“…… Since the number of slots per pole and phase q=1 and the uniform air gap is adopted, the harmonic magnetodynamic potential of the stator tooth is large, and the driver should pay attention to the changes of current density, the value of the rated voltage and the rated current of the excitation device when pressurizing the power......"

“…… Standard calculation example: the length of a carriage of the maglev train is 23.32 meters, the total weight is 107.6 tons, the ultra-low speed stage is 400 kilometers per hour, and the running resistance is 60.22kn......"

“…… The calculated parameter values are as follows: at 75 degrees Celsius and 215 Hz, the stator resistance per phase in the 300m power supply section is 0.2886 Ω (omega), and the stator leakage reactance is 21......"

[What?what??]

[What are you talking about?]

[Sit in a row under the tree in confusion.] 】

[Great, wonderful. 】

【Devil's ......】

[I don't understand, skip it.] 】

[I always feel that the evaluation of the up master is becoming more and more unfriendly. 】

[There are so many things I don't understand in junior high school mathematics?]

[Isn't it elementary school math?]

[Looking at the anchor's contemplative appearance, he must have understood. 】

[Nonsense, those who can do scientific and technological evaluations must have full professional knowledge. 】

【T ......】

[T +1.] 】

After five minutes, the obscure principles and controls were finally introduced.

Chen Yu turned his head and looked at Xiao Taohong: "Do you understand?"

"Huh?" Little Peach looked dazed.

"Alas. ”

Sighing, Chen Yu stood up and patted Xiao Taohong's shoulder: "You can't always think about playing, you have to study more." Listen to it yourself a few more times and try to get it started. I went out to get some air. ”

As he spoke, Chen Yu shook off the non-existent dust on the dragon coat, walked out of the cockpit with his hands behind his back, and left the camera inside.

Entering the living area to solve the three urgent problems, Chen Yu lay on the sofa and rested for five minutes, estimating that the official person was about to come, so he got up and returned to the cab.

In front of the crystal ball, Xiao Taohong was still listening to the artificial intelligence explanation with her eyes confused.

"Do you understand?" asked Chen Yu.

"Huh?" Little Peach looked dazed.

"Forget it, this knowledge is still too profound for you, take your time. Chen Yu waved his hand and looked at the camera: "More than ten minutes have passed, and the introduction of this maglev three-level general construction project vehicle is here." Next, let's jump right into the actual operation and evaluation. ”

After the words fell, Chen Yu walked to the giant car window, looked out, and saw that police cars, helicopters, and camouflage jeeps were all coming outside, densely parked around.

Since he was not wearing protective clothing, Chen Yu could not be exposed to the outside world at will, so he instructed Xiao Taohong to say: "You go outside to find the person in charge, and bring the cooperation intention and the things given by the other party." ”

"Good!"

Little Peach nodded heavily, trotted out of the cab, got off the first carriage, and stood on the snow with his hands on his hips: "Who is your person in charge?"

"It's me, it's me! I'm in charge here for the time being!" a young man hurriedly leaned over and nodded, "Hello ma'am." ”

"Now I'm my father-in-law. Little Peach pointed to the eunuch suit on her body.

"Male... The father-in-law ......" The young man was stunned on the spot.

"Hmm. What do you have to give me?"

Looking at the girl in front of him who seemed to be "not very smart", the young man wanted to talk, but when he recalled the order of his superiors, he held back and handed over the small box in his hand: "I am really grateful to Mr. Wang for this cooperation that benefits the country and the people." Please tell Mr. Wang that the whole of China will unconditionally support his maglev construction plan. ”

"Okay, I'll get that. Taking the box, Little Pink waved her hand, stepped onto the train and closed the door.

"Hoo ......"

Taking a breath, the young man took a few steps back, looked at the maglev engineering truck, and smacked his lips with envy......

……

"My king, to you. ”

"Hmm. ”

Taking the box handed by Xiao Taohong, Chen Yu opened it with his back to the camera.

At the top, there is a handwritten thank you note with many stamps at the end.

He read the thank you letter carefully, set it aside, and picked up the file bag on the lower level.

"Tear up!"

Unwrapping the seals and pulling out the stacks of documents in the portfolio, it was found that these were detailed construction plans, including site selection, geological structure along the way, excavation difficulty, and so on.

There are three copies of the roadmap, and Chen Yu is recommended for reference.

After carefully examining all the documents, among the three routes, Chen Yu chose the second one, from the capital Pyeongchang to the magic capital Puqing, without any transit stations along the way. It's a straight line.

After making a decision, Chen Yu buckled the lid of the box, picked up the route plan and sat in the driver's seat, and said loudly: "Second goods." ”

"I'm here. ”

"Turn on the smart mode and go to the Pyeongchang district of the capital. ”

"Sorry, your destination location is not recognized, please manually select the destination coordinates. ”

The electronic synthesized sound echoed, and a virtual projection appeared half a meter in front of the driver's seat, showing a flat two-dimensional map.

Chen Yu observed for a moment and then found the location and clicked on a certain point in Pyeongchang District.

"The path is being planned. ”

"The path has been planned, it has deviated from the road surface, and it is being corrected. ”

"Boom ......"

With a loud rumbling sound, the behemoth, which was nearly three hundred meters long, began to shake.

Outside the train, everyone felt the numbness coming from the soles of their feet.

This is the power of machinery and technology......

"Knock knock!"

Half a minute later, the originally flat bottom of the train sank rows of track chains.

These tracks have raised surfaces with sharp spikes that enhance friction with the ground. In the track, the drive wheel, the support wheel, the guide wheel, and the carrier wheel are all complete.

More like a tank, more like a train.

"Quack Quack ......"

The huge body is slowly moving forward under the force of countless driving wheels.

The thorny tracks rubbed against the snow, making a strange sound that made your teeth sour and your scalp tingling.

"This ...... Or a weapon, right?"

The young man in charge raised his head, looked at the steel beast in front of him, and muttered to himself.

Inside the cab, feeling the movement of the body, Chen Yu rubbed his hands excitedly, and pointed straight ahead: "Accelerate!