Chapter 3547: In a Lifetime, I Have Only Seen Two Such People

Liyalin rarely encountered such a thorny case.

Previously, when he encountered a thorny case, it was because there were too few clues, such as incomplete fingerprints and shoe prints, blurry surveillance footage, and so on, but this time it was different—this time there were too many clues, so many that they made his scalp tingle.

The surveillance video showed that dozens of identical vehicles entered the highway one after another, then chose different exits or left the highway in various directions.

The most astonishing thing was that they all used the ETC system of the same vehicle.

This meant they had also hacked into the highway's toll system.

He now had too many directions to investigate, such as each vehicle's travel trajectory that day, the origins and destinations of these vehicles, investigating who bought so many identical business vehicles, checking which vehicle administration office recently registered the same model, and seeing if the hacker left any traceable traces in the ETC system.

But when there were too many clues, it was hardly different from having no clues at all.

Every clue could be investigated, but no one knew whether pursuing it would lead to a dead end or into another trap set by the other side.

If they found the vehicle owner and then investigated the owner's information, what if the information was forged?

If they found traces of the hacker, but the hacker's information was deliberately set as a trap, what then?

So Liyalin did not want to let his thoughts wander at this moment; what he most hoped for was that the AI could locate Xiao Churan's true vehicle through extremely subtle anomalies, so subtle that humans could not perceive them.

If he could pick out the single unique vehicle from dozens by following the thread, everything would become much simpler.

Therefore, he input all the video materials into the AI model and let the AI analyze the differences among these vehicles on its own.

The AI immediately analyzed these vehicles from multiple dimensions; it believed there was no difference in the vehicles' appearance, not even different stains could be found, proving they had thoroughly cleaned the vehicles before departure.

If needed, the AI could judge by analyzing the vehicles' suspension posture while driving, for example, the AI could use the video to judge road undulations, estimate the slope gradient, then based on the vehicle's speed, determine the suspension's undulation state when passing a certain degree of undulation.

Whether it was ordinary spring suspension, air suspension, or electromagnetic suspension, when a vehicle drives on an undulating road surface, the body will compress or release the suspension along with the undulations.

The main factors determining the undulation amplitude are respectively the road undulation gradient, the vehicle's driving speed, the suspension tuning, and the vehicle's curb weight.

If any one of these four points differs, then the vehicle's suspension performance will differ.

The AI's entry point was thinking that since they were all the same vehicle model, their suspensions must also be the same; road gradient and driving speed can be calculated by the AI to determine their linkage relationship, to ascertain whether the same vehicle, at different speeds over different gradients, exhibits the same response coefficient.

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

The heavier the vehicle, the lower the undulation degree when dealing with undulations, and vice versa, just like a fully loaded ship encounters waves more smoothly.

The AI listed a large number of its own entry points, making Liyalin feel it was very reasonable, so he immediately authorized the AI to proceed with analysis along this line of thought.

However, after the AI ran at full power for several tens of seconds, the feedback conclusion was: "I calculated the response coefficient from the video's road gradient, vehicle driving speed, and body undulation degree, then compared and found that all vehicles had the same response coefficient, which is unreasonable."

Liyalin immediately asked: "What does 'unreasonable' mean?"

The AI replied: "If all vehicles yield the same response coefficient from these three points, it can only prove that all vehicles' curb weights differ by almost nothing; if their weights differed significantly, each vehicle's response coefficient should be different—lighter vehicles would have a higher response coefficient, heavier ones a lower one."

Liyalin exclaimed in surprise: "How could dozens of vehicles possibly have exactly the same curb weight? Even if other vehicles rushed over, because the distances they rushed were different, fuel consumption would differ, and with different fuel consumption, weight would also differ!"

The AI replied: "Because the video resolution is insufficient, analyzing suspension undulation height from the video itself already has at least a one-centimeter error, and their weight difference should lie within this analysis error."

"In other words, if my precision could reach two decimal places, then their error would be in the third decimal place, exceeding my judgment range; through overall calculation, if their weight difference does not exceed five kilograms, I cannot analyze the difference."

Liyalin almost cursed on the spot.

Although it is currently unclear which vehicle Xiao Churan is in, it can be confirmed that the vehicle she is in has at least four people, including the driver.

The weights of the other dozens of vehicles are the same as this vehicle's, proving first, that Xiao Churan's vehicle itself has a weighing function, able to calculate the entire vehicle's curb weight the moment her family gets in.

Second, it proves the other vehicles' response speed is extremely fast; they joined Xiao Churan's vehicle on the highway within half an hour, one after another, proving they completed their own weight adjustment in a very short time, even calculating fuel consumption roughly.

The vehicle's empty weight is about two tons; carrying four adults adds at least nearly three hundred kilograms, making a 2,300-kilogram vehicle—being able to control the weight difference within five kilograms is already very precise.

Liyalin asked the AI: "From the current data, do you still have any way to find differences among these vehicles?"

The AI replied: "The current video materials are all surveillance footage, with limited precision; more and more precise data are needed for analysis."

Immediately, the AI added: "If it were May to October, analyzing this would be relatively much easier, unfortunately the timing is wrong."

Liyalin felt puzzled in his heart and asked it: "Why is the timing wrong? What is special about May to October?"

The AI replied: "From May to October, there are more mosquitoes; during high-speed driving, each vehicle's front will collide with large numbers of mosquitoes; although there are many mosquitoes, just like fingerprints and QR codes, as long as they are compared, it is absolutely impossible for any vehicle to have exactly the same mosquito corpses on its front; that would make it easy to locate them, but now the season has not yet started a new round of mosquito breeding, so no distinguishable details can be found."

Liyalin sighed, unable to comprehend what kind of person would be so meticulous, meticulous enough to control vehicle weight to such precision.

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

Thinking of this, Liyalin suddenly felt a chill down his back, secretly thinking: "Could this person know that Ye Chen has an AI model?"

Afterwards, he immediately confirmed his guess.

"It must be so!"

Thus, he immediately called Ye Chen, solemnly analyzing the situation to him, then stating his conclusion: "Young Master Ye, no matter who that person is, they fully understand your strength, they know you have an AI model, even know you would come to me for help investigating, so they planned from the beginning to be foolproof, not allowing the AI to detect any problem.

"Such strong control, able to precisely direct so many people without any oversight, is absolutely worthy of being called 'planning strategies within the tent, winning victories thousands of miles away!'"

Ye Chen also listened with a startled heart, murmuring: "Even when we withdrew the death warriors, our thoughts had not risen to such a meticulous degree, our control over details was far from this precise…… exactly what kind of person would be so perverted in obsessing over details?"

Liyalin took over and sighed: "Young Master Ye, I have lived over fifty years, and I have only ever seen two people with such ability."

Ye Chen hurriedly asked: "Which two?"

Liyalin said: "One is your father, the other is your mother."