Genius is just the threshold for me!

Led by security personnel, Lin Dong left the core area. The clear winter sun shone on him, bringing a comfortable warmth.

I just left the outer area and haven't entered the residential area yet.

Just then, a shout suddenly rang out from the milk tea shop across from the entrance of the residential area.

"Hey! Lin Dong, over here!"

Lin Dong paused and turned to look.

Huang Qingyao, Xia Ran, Su Yue, and Jiang Caiping were sitting on benches in front of the milk tea shop, basking in the warm winter sun, each holding a cup of milk tea.

"You guys really know how to enjoy yourselves, basking in the sun and drinking milk tea." Lin Dong walked over and smiled at Huang Qingyao, who had just called him.

"That's what weekends are all about."

Huang Qingyao didn't refute Lin Dong's words at all. Instead, she replied with a look of agreement: "All we're missing now is a deck of cards or mahjong."

"I just told Caiping that I was bringing a deck of cards, but you said you didn't want it."

Su Yue sat opposite Huang Qingyao and said disdainfully, "Playing cards at the entrance of the residential area is not a good image."

"This is indeed a bad image."

Xia Ran sat down next to Huang Qingyao and smiled, then looked up at Lin Dong and asked, "Lin Dong, would you like some milk tea?"

"No, I just ate a lot of snacks."

Lin Dong shook his head and was about to say goodbye when a familiar shout suddenly came from the street corner not far away.

"Wangcai! Wangcai, where did you run off to?!"

Wang Wang Wang --

A faint hum of an electric motor and the sound of limbs slapping the ground rang out.

The next moment, a mechanical dog made of beige peek material and wearing a suit rushed out from the corner of the road and ran quickly to a spot not far from Lin Dong.

With a squeak.

The mechanical dog slowed down and stopped, then squatted down in front of Lin Dong and barked twice.

"Wow—Wangcai!"

Su Yue exclaimed in surprise, quickly got up and ran over, patted the dog's head happily and said, "Quick, call me sister."

"Woof—Sister Yueyue!" The mechanical dog barked politely and called out "Sister."

"Lin Dong, is Wangcai really that smart?"

Huang Qingyao also walked over in surprise, asking incredulously, "Did it just hear your voice and come running over?"

"My dad said he added a daily learning model and a behavioral model of Chinese rural dogs."

Lin Dong gave a brief explanation.

Fueled by a no-holds-barred spending spree, the number of robotic dogs in Chengdu has exceeded 200,000 in just over three months, and the total number of robotic dogs across the country has surpassed 400,000.

With a large amount of training data, Lin Weiliang made continuous improvements, and Lin Dong helped solve some difficult problems. The mechanical dogs have now evolved into two groups.

One is a ruthless combat mechanical dog, which is strictly controlled equipment and is not open to individuals or ordinary units. Only military units and special units can purchase and possess it.

The wolf pack system is equipped with a combat learning model and various tactical models, and the underlying code does not have any restrictions on preventing people from being injured.

One is a pet mechanical dog or a special mechanical dog, which is a normal commercial product targeting the mass market, the industrial market, and the fire protection market.

The wolf pack system is equipped with a daily learning model, as well as various natural dog behavior models, guide dog models, and fire rescue dog models. The underlying code has a setting that prevents it from harming people unless activated by a special command.

"Why isn't my aunt's robotic dog as smart as Wangcai?"

Huang Qingyao said with some surprise, "Her dog doesn't recognize people at all, and she has to use a remote control to give it voice commands every time."

Once, I went out for a walk with my dog ​​but forgot the remote. I used the public mode and a cyclist yelled at me, and I chased him for several kilometers.

"The difference between the special edition and the general edition."

Lin Dong couldn't help but chuckle when he heard Huang Qingyao's aunt's dog being chased away by a cyclist.

talking.

Lin Dong looked at Xu Qingling, who was chasing Wangcai over first, and Zhang Xiali, who was walking behind her. He smiled at Xu Qingling and asked, "What did you buy while shopping?"

"I bought some snacks and the dishes I cooked today."

Xu Qingling ran over carrying a bag, slightly out of breath from running and chasing, her bangs disheveled by the wind. Looking at Wangcai squatting on the ground, she said, "I thought something had happened just now, and Wangcai suddenly started running."

"Its electronic radio is quite sensitive; it heard my voice... You guys chat, I'll head back now."

Lin Dong took the bag from Xu Qingling, waved to Huang Qingyao and the others, and went home with Zhang Xiali.

"Oh my god!"

As soon as Lin Dong and Zhang Xiali entered the residential area, Su Yue approached Xu Qingling, her expression incredulous, and asked, "Have you been going shopping for groceries with Aunt Xia every day lately?"

"Not every day."

Xu Qingling corrected, "I only have time on Saturdays and Sundays."

"Lin Dong isn't here, don't you feel awkward and restrained being with Aunt Xia like this?" Huang Qingyao asked, somewhat puzzled.

"No way!"

"I often went over to visit and have meals when I was in second grade. Aunt Xia and Uncle Lin were both very easy to talk to. Lin Dong also often came to my house, and my mother treated him the same way..."

Xu Qingling paused for a moment, her expression tinged with helplessness, and said, "It's just that my dad always has a sour face, but he's gotten much better these past few months..."

"Waaah, please stop talking!"

Hearing this, Huang Qingyao couldn't help but break down: "My wonderful weekend mood has been cruelly ruined by you guys..."

Sigrún has taught at the Iceland University of the Arts as a part-time lecturer since and was Dean of the Department of Fine Art from -. In – she held a research position at Reykjavík Art Museum focusing on the role of women in Icelandic art. She studied fine art at the Icelandic College of Arts and Crafts and at Pratt Institute, New York, and holds BA and MA degrees in art history and philosophy from the University of Iceland. Sigrún lives and works in Iceland.

At 7:20 p.m., even though Chengdu is in the southwest region, the sun sets early in winter and it is already completely dark.

The streetlights in the community lit up one by one, their bright lights like clusters of stars in the cold night. After finishing their dinner, Chengdu Aircraft Industry Group employees began to leave the community and head to the base.

"Qingling, your Uncle Lin and I are working overtime and won't be back this early."

"You and Xiaodong's clothes can be washed first. Don't hang them to dry in the sun; just put them in the dryer. Your mom's coming to pick you up tomorrow; winter clothes don't dry that quickly..."

After finishing dinner, Zhang Xiali and Lin Weiliang changed into their work clothes. Zhang Xiali even gave Xu Qingling a few instructions before leaving.

"Okay, Aunt Xia."

Xu Qingling responded and looked at the anti-eavesdropping device that had not been turned off in the house for some time.

Looking at Lin Dong, who was still eating at the table, she leaned over and asked curiously, "Isn't this project unrelated to Uncle Lin? Why did you assign him work again?"

"no."

Lin Dong picked up the last piece of twice-cooked pork and explained simply, "He has an image recognition problem to solve with the mechanical dog at a high-altitude outpost."

Lin Weiliang received a request from the army for a robotic dog at a border outpost. Because the scenery on the plateau is different from the plains of Chengdu, the current recognition data is not quite suitable.

As expected, this will require one or two weeks of specialized training to correct the data discrepancies.

"Okay, I'll take care of it after you finish eating. You can go if you're busy." Xu Qingling nodded and took the initiative to clean up the dishes and wash the dishes after Lin Dong finished eating.

During this time, she and Lin Dong learned that Chengdu Aircraft Industry Group (CAC) was going to take on a large project from Shenyang Aircraft Corporation (SAC), and that the project was being launched under the watchful eyes of a group of spies.

Especially after that J-10 fighter jet landed today, the atmosphere at the entire Chengdu Aircraft Industry Group base immediately changed.

The entire security department was mobilized to meticulously check the wiring and install cameras.

Meanwhile, photosensitive detectors to prevent laser monitoring and eavesdropping were deployed on the balconies and windows of the family quarters and base office buildings.

Moreover, it's the weekend, and many people, like Zhang Xiali, changed into their work clothes and went to the base after dinner.

"No rush."

"I need to wait for Shenyang Aircraft Corporation's data to be integrated into the database."

Lin Dong smiled and shook his head.

Together with Xu Qingling, they put the dishes away, washed the dishes, took clothes, took a shower, dried their hair, and then slowly went into the study.

"Data unlocking and access are not yet complete..."

Lin Dong logged into Wang Xingguo's email account but didn't see any relevant emails. He also didn't receive any messages on his secure phone, so he simply switched back to his own email account.

In less than three seconds, an email from Su Ruohua popped up.

"Xiao Dong, I have carefully studied the MRV control scheme you provided for the Dongfeng-21D anti-ship missile project and found that there is still a lot of room for improvement in the performance of this control and trajectory change."

However, by increasing the initial trajectory change angle and connecting it to the anti-missile simulation system, the penetration rate was recalculated and the simulation results showed a decrease...

Lin Dong carefully examined the question and replied decisively: "Godmother, the MRV control scheme, in addition to its own control, also has to contend with modern anti-missile systems, resulting in a very obvious boundary effect."

Because the ballistic missile's trajectory is already revealed in the mid-course phase, the enemy's anti-missile system has already calculated a rough impact range.

At this point, no matter how much the MARV controls its trajectory, its landing point will still be within this range. The anti-missile system will not be deceived by the brief signal of the initial trajectory change angle.

The real way to improve penetration efficiency is not by changing the trajectory angle initially, but by changing the trajectory intermittently and multiple times.

From one orbital change to two, then three, each additional orbital change will cause the accuracy of missile defense prediction to plummet, while the penetration rate will increase significantly.

However, the drawback of multiple trajectory changes is that with each additional trajectory change, the time available for correction decreases. In addition, the natural atmospheric fluctuations and aerodynamic layout errors accumulate during trajectory changes, and missiles do not have the precise flight control capabilities of fighter jets. The combination of these two factors leads to a significant decrease in the accuracy of the hit.

Therefore, a balance needs to be struck between the two; just enough is sufficient, rather than blindly optimizing the parameters to the extreme, as this may backfire...

For related research papers and specific computational models, you can refer to paper g201103b13 on the internal network, as well as materials from my lab with numbers a7628 and d769g.

Lin Dong attached a series of document numbers and paper numbers and sent the email back.

MARV stands for Maneuvering Reentry Vehicle, a technology used in modern ballistic missiles.

Specifically, it refers to a technical solution that allows spacecraft to re-enter the atmosphere and control maneuvering and orbit changes.

The Dongfeng-21D anti-ship missile has perfected the design of this maneuvering reentry, which is why it can lock onto a moving aircraft carrier target during the terminal phase maneuver.

Before the advent of maneuverable reentry vehicle technology, the earliest ballistic missiles all used parabolic warheads.

Because there is no terminal reentry maneuver, even a high school student can accurately calculate the missile's impact point, making it a sitting duck for modern anti-missile systems. As a result, missiles used in China are no longer in use.

Ding-dong-

The email was just sent.

At that moment, a message popped up on the secure phone next to me.

[001]: The core data for the J-16D project from Shenyang Aircraft Corporation has been unlocked and accessed to the database. I'll be working from home all night tonight, and the project can be launched.