Chapter 41 Automobile Training Center
Cui Jian got a small electric scooter from the repair shop, took a megaphone, and followed Shi Feng's car: "Look ahead, don't look at the front of the car, and occasionally pay attention to the center line." Not bad, as long as he can successfully get on the road, Shi Feng can drive forward in first gear. Reversing is impossible.

Cui Jian took the intercom and said, "Boss, he can open it."

Ai Li didn't believe it: "Shi Feng has learned to drive?"

Cui Jian replied: "The feeling of the car is not good enough yet. It needs mileage to settle down. It is only one step away from normal driving."

Ellie: "Okay, then you will supervise his driving practice today."

"Okay." Cui Jian changed the channel: "Shi Feng, go back along the roundabout in front, then drive to the square, make a circle and come back. Just drive like this to practice your driving sense. When taking a corner, keep the speed at around 10 kilometers per hour, and don't brake hard to avoid stalling the engine." After saying that, Cui Jian lay down under the shade of a tree outside the guardrail to rest.

Half an hour later, Ellie announced that the morning class was over and everyone went back to the base camp for lunch and resumed class at 1 o'clock.

Cui Jian stood up and got on his electric scooter. He was very pleased to see Shi Feng driving past him in an S-shaped manner. He thought that this young man was teachable. As for sideways, reverse, starting on a slope, shifting gears, etc., they had nothing to do with him. His mission was to teach Shi Feng how to drive, not to get a driver's license.

The lunch in the dining car was not as good as the college cafeteria, but it was also delicious. There were only three tables, and everyone used stools to push together. At this time, a male student asked a question: "Sister Ellie, why are you in such a hurry to start the class?" This was also a major topic discussed by the students. It was obvious that the three major consortiums had invested a lot of money in the Hancheng Security Company, but why did they start the class when the hardware equipment was quite makeshift?
Ellie said: "Because of the increase in transnational crime rates, especially kidnapping and murder." Previously, most crimes were confined to the country, but the Internet and Bitcoin opened up a transnational crime channel. The criminals and employers have achieved transactions without meeting or contacting each other.

Take homicide as an example. When a homicide occurs, the police will first exclude the related persons and investigate the profiteers. However, if the person who hired the murderer does not know the assassin's information, even if he surrenders voluntarily, the police may not be able to collect enough evidence to convict him. After all, they have to rule out the possibility that he is taking the blame for the real murderer.

The same is true for kidnapping cases. Previously, the kidnappers led the police in circles, looking for opportunities to get the ransom, and all kinds of wits and courage. Now it is no longer necessary. They give you an account to transfer money to. After the money arrives abroad and enters the dark web bank, it is difficult to find clues after it is tampered with by the Xiatecoin. After the kidnappers are sure that they have received the money, they will consider releasing the person or killing the hostage. However, the reputation of transnational kidnapping gangs is generally good.

Faced with this kind of kidnapping method, it is difficult for the police to track down the perpetrators afterwards. The criminals are all foreigners who come to Korea for tourism or business, and they just leave after committing the crime. Even if the police suspect someone and want to talk to him/her face to face, they need to seek help through the National Criminal Police Agency, and the procedures and steps required during this period are extremely cumbersome.

Both of them are billionaires. One billionaire has bodyguards, and the other billionaire has no bodyguards. Who will the kidnappers kidnap?
Shi Feng said: "So the kidnappers are our bread and butter."

Ellie was stunned. That was true.

Someone joked: "So in the future, when we face kidnappers, we must protect their personal safety as much as possible while protecting our employers, and also help them destroy evidence of their crimes."

Ellie slammed the table and stood up: "How can you say that? We are an honest profession, how can we be in cahoots with criminals?"

The male student didn't dare to say anything and just concentrated on eating.

Cui Jian smiled but said nothing. No one knew the relationship between professional bodyguards and professional killers better than him. The two sides also exchanged fire and competed, but when one side was obviously at a disadvantage, some bodyguards would surrender and some killers would flee. Faced with the fleeing killers, some bodyguards would not chase them, saying that they were afraid of luring the tiger away from the mountain or chasing the desperate enemy. Faced with the surrendering bodyguards, some killers would not kill them.

This question involves gang crime, and also explains why Qi Sha designed his own unique logo. In short, when facing the Qi Sha killer, the bodyguard will not die if he gives up and surrenders. Generally speaking, well-known criminal gangs have a good reputation and will not kill them all. A criminal gang killer who kills all will inevitably provoke the bodyguard to fight to the death, and the casualty rate will naturally increase.

But Cui Jian believed that Ellie would not explain this common sense, but Li Ran might tell the bodyguard the rules of survival.

Sitting next to Cui Jian, a female student named Zhu Zhenzhen, with a flushed face, said softly, "Brother Cui Jian, where did you learn driving skills?"

Cui Jian replied: "Driving more. When you have a good enough sense of the car and know the distance and position between your car and the other car, you can basically hit the key parts."

Zhu Zhenzhen: "After lunch, can you accompany me to practice driving?"

"No." Get lost. Cui Jian skillfully strangled all the budding emotions in the womb. In the embarrassment of Zhu Zhenzhen and the dissatisfied eyes of the people around him, Cui Jian took the plate and left, eating the food while walking, put the plate in the sink, and took a can of Coke to the repair shop.

In the repair shop, two repairmen were removing the dashboard and steering wheel to check the car's air conditioning system. After drinking Coke, Cui Jian stepped forward to lend a hand, put the removed evaporator aside, and quickly found that the copper pipe was leaking.

Seeing the repairman preparing to weld, Cui Jian asked curiously, "Aren't you going to replace it with a new one?"

The repairman replied: "No, just repair the cracks and polish it and it will be usable. It will be no different from a new one."

Welding and polishing, Cui Jian helped add refrigerant, then assisted them in putting the evaporator back, and finally put the dashboard and steering wheel back.

Isn’t this more fun than being a coach?

After getting to know the mechanics, Cui Jian took over the tire repair work. During the period, he learned that the vehicles used for training were basically second-hand cars with more than 30 kilometers and more than eight years of age.

After repairing a tire, Cui Jian turned to look at automotive computer technology, which was something he had never been exposed to before. The repairman was tinkering with a laptop computer, and seeing Cui Jian's help, he was interested in his work and did not hesitate to teach Cui Jian.

According to the car computer classification, cars can be divided into three categories. The first category is cars with basically no data, which only have simple data such as fuel level and mileage. The second category is more common, with tire pressure and comprehensive fault monitoring. The third category is cars equipped with advanced intelligent computers, including automatic parking, automatic driving, automatic U-turn, etc.

The mechanic said, "In summary, autonomous driving collects road data and feeds it back to the computer, which then gives the most appropriate driving method. But you see, if I raise the sensor or receiver by two centimeters, the computer will receive the wrong information. Or if I swap the connection wires, the left sensor will become the right sensor."

Cui Jian asked curiously: "Can hackers control cars by intrusion?"

Mechanic: "In theory, yes. Because all driving data will be transmitted to the car dealer's server, as long as there is data transmission, there is a port, but in practice it is still very difficult to operate. Just like the common car induction electronic key, it is very difficult to imitate."

Cui Jian asked: "Master, if you were a gangster and you wanted to control a car, what would you do?"

Mechanic: "If I were a criminal, I would use my own computer to access the driving computer and implant a Trojan horse, so that I could more easily seize control of the vehicle. However, there are many categories of autonomous driving at present, and whether it can be successful depends on the specific situation."

The mechanic used civil aviation as an example to express his views on autonomous driving.

Autopilot was used in civil aviation many years ago, and there have been many air crashes caused by the competition between autopilot and manual pilot for control. For example, the manual judgement of airspeed is normal, but the autopilot is activated through the sensor and determines that the aircraft is in a stall state, so it will force the nose down to gain airspeed. Seeing this, the pilot will of course seize control and pull up the nose. This situation is called man vs. machine in the aviation industry.

After several air crashes, the civil aviation finally introduced a rule: the pilot's authority is greater than the autopilot's authority.

During autonomous driving, when the intelligent system detects danger, it will take away the driver's driving rights and avoid the danger or brake urgently.

Autonomous driving is certainly a good thing, but it is different if someone deliberately sabotages it. Autonomous driving relies on data collection, and once someone destroys the data collection system, it will cause fatal errors in autonomous driving.

Mechanic: "If I were a bodyguard with extensive driving experience, I would not drive a vehicle that could take control from me at any time."

Cui Jian nodded repeatedly, and several more methods of killing came to his mind.

(End of this chapter)