Chapter 219:

Regarding Cheng Yuan's invitation, Liu Changfeng didn't even think about it and nodded in agreement.
Her original goal was to enter a technology crystallization company, and now Cheng Yuan directly invited her, and she would not object at all.
Seeing Liu Changfeng agree, Cheng Yuan smiled with satisfaction.
After the conversation between the two was over, Cheng Xin, who had not spoken, finally spoke. She muttered and looked at Cheng Yuan with dissatisfaction, saying, "Brother, you patronize and talk to Changfeng. We haven't had lunch yet! "
Talking, she rubbed her belly just as she did.
"Okay, I know you're hungry, let Fang Jing take you to lunch." Cheng Yuanjian's own sister stared at him with a grimace and said with a grin.
Cheng Xin heard that his slender eyebrows were unconsciously wrinkled and wondered, "Brother, don't you eat?"
"Who said I didn't eat?" Cheng Yuan froze, looking at Cheng Xin with some curiosity, wondering what she meant by that.
"Then how would you tell Sister Fang to take us to lunch, wouldn't you come with us?" Cheng Xin stared at Cheng Yuan, waiting for his answer.
Cheng Yuan was stunned and laughed: "I still have something here. I may be late for dinner. Do n’t you have to go to class in the afternoon, eat early, and just let Fang Jing take you back to school."
When Cheng Yuan said that he was in trouble, Cheng Xin was slightly disappointed and said, "Well, you can do your business."
"" Long "] Wind"] Text "︽♂t for Cheng Yuan not to go home for a long time now, Cheng Xin can understand, not to mention that Cheng Yuan now has his own career, even if he does not have this career, he must be in school Stay here.
What's more, after Cheng Yuan got married, she definitely couldn't live with her parents and her, so she still needed to move out.
Therefore, the family understands Cheng Yuan's situation at this time.
As long as Cheng Yuan went home during the Chinese New Year holiday, they were satisfied. This way will not disturb Cheng Yuan.
"Well, hurry up to eat with your classmates, and then go back to school to work hard. In the future, your brother and I will rely on you to help me share some things."
Seeing his sister's disappointment, Cheng Yuan gave a soft consolation.
To be honest, Cheng Yuan now has a very large shop and few people who can use it. This is one of the reasons why he has not opened a branch.
No management staff!
Even if it can be hired outside, this supervision cannot keep up.
Although Zero Energy helped him monitor everything in the company to a great extent, there were always things he couldn't judge.
Therefore, even if he came up with the graphene preparation technology, it was directly placed in the company instead of reopening a new material company.
"I see!" Cheng Xin is also a person who knows the importance. Hearing Cheng Yuan's words, he nodded to show that he understood.
Subsequently, Cheng Xin and Liu Changfeng left under Fang Jing's leadership.
After the three left, Cheng Yuan hurriedly went upstairs and returned to the laboratory.
At this time in the laboratory, four humanoid robots exhaling the cold atmosphere stood there in a row.
The height of the robot is one meter nine, and its body is thick. The appearance is covered with a hard silver-white nickel-titanium alloy shell, and its appearance is very similar to that of the Iron Man armor.
Nitinol is a shape memory alloy, a special alloy that automatically returns to its original shape at a specific temperature. And its expansion and contraction rate is above 20%, and the fatigue life is up to the 7th power of 1 10. The damping characteristics are 10 times higher than ordinary springs, and its corrosion resistance is better than the best medical stainless steels at present, so it can meet the needs of various engineering and medical applications, and is a very good functional material.
And use this metal to make the shell. In addition to making the robot lighter and stronger, it can also reduce future maintenance and maintenance costs.
In addition to the material on the body, there are other differences in the palm, chest energy stove and internal design.
The materials used by the four security robots, which have been deleted, modified, are just a few trucks of titanium alloy pulled by Yang Qiaoyuan last time. Was directly detained by Cheng Yuan at that time, and now it is used reasonably.
The palm of the guarding robot is claw-shaped, and various sharp appliances are installed inside each sharp finger.
Graphene solar absorption panels are installed on both sides of the shoulder, back and chest of the guarding robot. The driving energy inside it is a graphene solar cell that has not yet been released.
These solar panels can effectively bring powerful power to the robot.
Of course, compared to a miniature nuclear fission reactor, this battery still has a big gap. But for Cheng Yuan, it is the most suitable.
After all, these robots are destined not to participate in too many battles. Their more role is probably to deter and protect them.
Because after Cheng Yuan developed the z1 robot, his protection level increased to another level.
Finally, because the guard robot is intelligently controlled, and unlike Iron Man's armor, it can carry people, so the internal space is sufficient. Zero energy and intelligent cores are uniformly placed in the chest position, and protective plates are also added in this area.
"Sir, the three of Fang Jing have left, can we start the test?" Soon after Cheng Yuan came to the laboratory, he said zero.
Cheng Yuan nodded and said, "Let's start, let me see if they are more flexible than z1."
"By the way, the data of the combat skills have been loaded?"
"Yes, do you need to add additional data?"
Cheng Yuan shook his head and said, "No, since they already have it, let them start."
Hearing Cheng Yuan's instructions, Zero responded: "Okay."
With the zero sound falling, four guard robots suddenly started, and eight pairs of cold blue eyes lit up, followed by two or two confrontations, and began the first actual test.
"Wait!"
Suddenly, Cheng Yuan opened his mouth and stopped, and the four robots turned their heads and looked at Cheng Yuan at the same time. The zero voice sounded, "Do you have any more orders?"
Cheng Yuan pointed to his laboratory and said, "The place here is too small, we should go to the rooftop to test, so that the robot can let go of its hands and feet in actual combat and don't have to worry about where it will be destroyed."
"Okay, sir." Zero had no objection to Cheng Yuan's proposal, and four guard robots walked towards the rooftop under the control of zero.
At the same time, Cheng Yuan also opened a virtual window.
Inside the window, the appearance of the four security robots is clearly visible.
Soon, four robots came to the rooftop, two of them stood in groups of ten meters apart.
"let's start!"
Cheng Yuan saw that they had stood firm and ordered.
With an order from Cheng Yuan, the four guard robots started at the same time, and pulled their legs and rushed towards the other side.
At the moment of the robot's action, on the virtual window in front of Cheng Yuan, a number was added to the top of each robot's head.
The two on the left are number one and two, and the two on the right are number three and four.
At the same time, Cheng Yuan added two more virtual windows beside him, which respectively showed the internal mechanical response and energy consumption of several robots.
On the left, No. 1 and No. 1 are the fastest to start first, and No. 2 is closely behind him, following him firmly. On the right, No. 3 and No. 4 go hand in hand, rushing towards their current opponents at the same time.
The running movement of the four robots was very smooth. Through the data response of the window, Cheng Yuan did not find any problems.
On the rooftop, when the two sides were still about five meters away, No. 1 suddenly jumped up, his right arm was raised backwards, his right hand was fisted, his body was slightly adjusted in the air, and a standard flying punch was made.
In the face of No.1's attack, No.3 was also unwilling to show weakness. He ran out of his body while running, hitting No.1 with a punch. At the same time as No. 3 made the move, No. 4 followed closely, and jumped to No. 1.
In the face of the total number of fists of No. 3 and No. 4, it seemed that No. 1 did not see it, and still rushed forward.
At this moment, the number two behind him also moved.
The number two, who has been right behind him, suddenly accelerated, and the moment he jumped up from the number four, he accurately grasped the ankle of the opponent, and then dragged the opponent's body to the number three.
Suddenly, if it is placed on a human, the number four will definitely hit the number three, and then the two robots will fly out like a hoist.
But for a robot that can perfectly control every part of its body, No. 3 and No. 4 are not panic in the face of such an attack.
At the same time as No. 2 made a throwing motion, No. 4 grabbed No. 3's hands at a very fast speed, and then followed No. 2's strength, No. 3 changed his fist and hit No. 1 with a severe kick.
At the same time, at the moment when No. 3 hit No. 1, No. 4 let go of his hand, and his body was still dropped by No. 2.
This result is equivalent to one for one.
Neither side has benefited.
And just after No. 1 and No. 4 were hit, No. 2 and No. 3 directly started close-range attacks.
...
In the laboratory, Cheng Yuan didn't pay much attention to the attack actions of the four guard robots, and his gaze always followed the mechanical response and energy consumption inside them.
From the data reaction, the operation of the four guard robots is almost perfect, and each of their internal parts is running perfectly in one action without any errors.
So ~ EbookFREE.me ~ The movements of the four guard robots at this time are fast, clean and neat, without any slight lag.
"They are doing very well!" Cheng Yuan's eyes lightened slightly, and he couldn't help but admire the four guard robots fighting scenes comparable to the sci-fi movie screen.
"They calculated hundreds of thousands of times, and now the chance of internal errors is one in a million. I don't think there will be any hardware errors without special events."
Hearing Cheng Yuan's admiration, Zero replied slightly proudly.
"Really, what about the previous z1 robot?" Cheng Yuan looked at the perfect guard robot and suddenly remembered the [z1] large robot in the base.
"If it is standard and manufactured according to our design, the probability of z1 error is 1 in 100,000. Of course, the chain reaction of large robots is more complicated. I think the maintenance of z1 needs to be stricter."
"That's OK, then I don't want z1 to give me moths during the actual combat detection phase." Thinking of the z1 battle detection that Ma Zhicheng mentioned last time, Cheng Yuan's confidence is even more confident. (To be continued.)