Chapter 3548 I have only seen 2 people in my life

Li Yalin rarely encounters such a difficult case.

In the past, I encountered difficult cases because there were too few clues, such as incomplete fingerprints and shoe prints, blurry surveillance, etc., but this time it was different. This time there were too many clues, so many that it made my scalp numb.

The surveillance video shows that dozens of identical cars entered the highway one after another, and then chose to fork in the road or exit the highway in different directions.

The most shocking thing is that they all used the ETC system of the same car.

This means that they also hacked into the highway toll system.

He now has too many directions to investigate, such as the driving routes of each vehicle on that day and the origins of these vehicles. He can investigate who bought so many identical commercial vehicles, which vehicle management office recently took over the registration of vehicles of the same model, and whether the hackers have left any traceable traces in the ETC system.

However, when there are too many clues, there is not much difference from having no clues.

Every clue can be investigated, but no one knows whether the investigation will lead to a dead end or into another mystery of the other party.

What if the vehicle owner is found and the vehicle owner information is traced, but it turns out that the other party's information is forged?

What if we find traces of the hacker, but the information left by the hacker is also a deliberate trap?

Therefore, Li Yalin did not want to think divergently at this time. What he hoped most was that AI could locate the vehicle where Xiao Churan was actually located through extremely subtle anomalies that were so subtle that they were imperceptible to humans.

Everything would be much simpler if you could pick out the only one from dozens of cars.

So, he input all the video data into the AI ​​model and let the AI ​​model analyze the differences between these vehicles on its own.

AI immediately analyzed the vehicles from multiple dimensions and found that there was no difference in the appearance of the vehicles, and even different stains could not be found, which proved that they had thoroughly cleaned the vehicles before departure.

If necessary, AI can make judgments based on the suspension posture of the vehicle while it is driving. For example, AI can use video to determine the undulations of the road surface, make an estimated calculation of the slope of the undulations, and then, based on the speed of the vehicle, determine the undulation state of the suspension when the vehicle passes through a certain degree of undulations.

Whether it is ordinary spring suspension, air or electromagnetic suspension, when the vehicle is driving on a bumpy road, the body of the vehicle will compress or release the suspension with the ups and downs.

The major factors that determine the amplitude of the undulation are the slope of the road, the speed of the vehicle, the tuning of the vehicle suspension and the curb weight of the vehicle.

If there is a difference in any of these four points, the performance of the vehicle suspension will be different.

The point of AI's entry is that since they are all the same type of cars, their suspensions must be the same. The road slope and driving speed can be calculated through AI to determine whether the same car will show the same reaction coefficient when passing different slopes at different speeds.

The only variable that cannot be calculated is the curb weight of the vehicle.

The heavier the car, the less it will fluctuate when dealing with ups and downs, and vice versa, just like a fully loaded ship will be more stable when dealing with waves.

The AI ​​listed a lot of its own entry points, which made Li Yalin feel very reasonable, so he immediately authorized the AI ​​to conduct analysis along this line of thought.

However, after the AI ​​ran at full speed for dozens of seconds, the feedback concluded: "I calculated the road slope, vehicle speed, and body undulation in the video to obtain a reaction coefficient. After comparison, I found that the reaction coefficients of all vehicles were the same, which is not reasonable."

Li Yalin immediately asked, "What do you mean by unconventional?"

The AI ​​replied: "If the reaction coefficients calculated using these three points are the same for all vehicles, it only proves that the curb weights of all vehicles are similar. If the weights of their vehicles vary greatly, the reaction coefficients of each vehicle should be different. Lighter vehicles have higher reaction coefficients, and heavier vehicles have lower reaction coefficients."

Li Yalin was surprised and said, "How can dozens of cars have the same weight? Even if other vehicles rush over, the fuel consumption will be different because the distance they travel is different. If there is a difference in fuel consumption, there will also be a difference in weight!"

The AI ​​replied: "Because the video is not accurate enough, my analysis of the suspension height has an error of at least one centimeter, and the weight difference should be within the analysis error."

"In other words, if my accuracy can be as high as two decimal places, then their error is only three decimal places, which is beyond my judgment range. Through overall calculation, if their weight difference does not exceed five kilograms, I will not be able to analyze the difference."

Li Yalin almost cursed on the spot.

Although it is not clear which car Xiao Churan was riding in, it is certain that there were at least four people in that car, including the driver.

The weight of dozens of other cars is the same as this one, which proves that, first of all, Xiao Churan's car has its own weighing function, which can calculate the curb weight of the entire car as soon as their family gets in the car.

Secondly, it proved that the reaction speed of other vehicles was extremely fast. Only half an hour later, they met up with Xiao Churan's car on the highway one after another. This proved that they completed the adjustment of their own weight in a very short time and could even calculate the approximate fuel consumption.

The empty weight of the vehicle is around two tons. To carry four adults, it will at least increase by nearly three hundred kilograms. For a 2,300-kilogram vehicle, the weight difference can be controlled within five kilograms, which is very precise.

Li Yalin asked the AI: "Based on the current data, is there any way you can find the difference between these vehicles?"

The AI ​​responded, "The current video footage is all surveillance footage, which has limited accuracy. We need more accurate data for analysis."

Then, the AI ​​said, "If it were May to October, it would be much easier for me to analyze this matter, but unfortunately the time is wrong."

Li Yalin was surprised and asked, "Why is the time wrong? What's so special about May to October?"

The AI ​​replied, "From May to October, mosquitoes are more plentiful. Every car traveling at high speeds will collide with a large number of them. Even though there are many mosquitoes, just like fingerprints and QR codes, if you compare them, it's impossible for two cars to collide with identical insect carcasses. That would make it easy to locate each other. However, mosquitoes haven't started their new breeding season yet, so there aren't many details to distinguish them."

Li Yalin sighed. He couldn't understand who could be so cautious, so cautious that he even controlled the weight of the car so precisely.

Normally, no one would consider this aspect, and even if they did, they would not do it so precisely, unless the person knew what he was facing and was prepared in advance.

Thinking of this, Li Yalin suddenly felt a chill on his back, and thought to himself: "Could it be that this person knows that Ye Chen has an AI model?"

Then he immediately confirmed his guess.

"It must be!"

So, he immediately called Ye Chen, analyzed the situation to him in a serious tone, and then stated his conclusion: "Master Ye, no matter who that person is, he is very clear about your strength. He knows that you have an AI model and even knows that you will ask me to help investigate. Therefore, they planned it foolproof from the beginning to prevent any problems from being analyzed by AI.

"With such strong control ability, he can accurately command so many people without any mistakes. He can definitely be said to be able to plan and win from thousands of miles away!"

Ye Chen was also shocked when he heard this and muttered, "Even when we were evacuating the assassins, our thinking didn't rise to such a meticulous level, and our control over details was far from this precise... Who on earth would be so perverted and picky about details?"

Li Yalin sighed, "Master Ye, I've lived for over fifty years, and I've only met two people with this ability."

Ye Chen asked hurriedly: "Who are those two?"

Li Yalin said: "One is your father, and the other is your mother."