"I'm going upstairs," Henry said, and went upstairs.

As soon as I entered the room, a spherical, snowman-like robot rolled to my feet. An infrared scan performed biometric identification, and suddenly, a high-frequency alarm sounded, inaudible to humans.

'An unidentified object has invaded.'

This was some kind of encrypted high-frequency sound, the kind used to transmit warnings. This was to prevent any intruders from noticing that this toy-like spherical robot had issued a warning.

Rather than using loud alarms that would scare people away, Henry, the Kryptonian, prefers to do it stealthily.

The core robot, codenamed BB, is made of plastic without any fancy patterns or colors. Overall, it looks like a tumbler toy for children.

The only difference is that the lower half of this ball-shaped toy can roll, allowing the robot to run all over the floor.

The reason for not using metal is, of course, because plastic is light. Its light weight means it doesn't require a high-power motor, and the battery life can be extended.

Although Henry had activated the lithium iron battery technology tree, this thing was not a small Ark reactor after all and still needed to be charged. To charge, the electricity cost had to be considered.

In order to avoid his electricity bill exceeding that of an average household and becoming too conspicuous, Henry was very restrained in his actions. Otherwise, draining the entire area's electricity instantly wouldn't be difficult for him to do what he wanted.

On the other hand, the toy-like shape of this plastic can reduce the vigilance of illegal intruders. Even though old Gary is guarding the first floor, no door or house in this apartment has been robbed so far.

The robot's control program isn't artificial intelligence. A self-learning program that can grow requires a certain level of computing power, and current computing equipment isn't powerful enough. Henry simply programmed a set of responses for most situations.

So after hearing the warning sound from the core robot BB, Henry immediately gave orders using the same high-frequency voice.

'BB, log in as a new secondary user, username Katie.'

"A new secondary user, Katie, has been logged in. Please provide a DNA sample as soon as possible." "Welcome, Katie."

BB's voice is a very stiff electronic synthesizer. It's not that I didn't want to use a gentle older sister voice, but that would require extra computing power to compose sentences and convey the tone and attitude.

Moreover, electronic music is inexplicably appealing to people of Henry's generation.

As for high-frequency audio conversations, they carry a high level of privilege. Even if an outsider were to detect them, they would still need to crack the encryption. After cracking, they would also need to identify non-European and American languages ​​to decipher the content, and then use the same method to obtain high-level privileges.

With so many precautions in place, Henry didn't even want to set up additional user IDs and passwords. And why would he need to change them regularly? Such inhumane design would only deter forgetful users, not those with ulterior motives.

It could be said that Henry's most focused work during this period was building this voice control system. Just figuring out how to make the microphone distinguish between ambient human voices and sounds coming from the TV took a lot of effort.

Then, after receiving voice commands, how are they converted into instructions that machines can understand? How have voice commands evolved from precise judgment to fuzzy judgment?

Even when using a distorted voice or unusual speaking style, command actions can still be triggered. It's thanks to careful attention to detail that we've achieved today's results.

In fact, at this level, although the system is not built with artificial intelligence programs as the main backbone, big data analysis methods are also used to achieve these functions.

High-frequency sound dialogue is the highest user with advanced permissions and can change the underlying confidential information.

Henry himself is a first-level user and has the authority to use all command functions.

Second-level users only have limited command capabilities, pending activation. Currently, the only person at this level is Kitty, the little tiger. Considering the possibility of Kitty being away from home in the future and having her meals prepared by Baby, I've decided to grant some functionality as appropriate.

The only registered visitor was Old Gary, and when he entered, BB wouldn't sound a warning. The house wasn't equipped with any lethal defenses, except for the security camera, which would automatically activate if an intruder entered.

In a rented house, especially an apartment where ordinary people live, setting up a deadly trap would be excessive. Besides, the more tightly guarded it is, the more important the things here are. Henry didn't leave any treasures in the rented house that couldn't be lost.

For example, my black clinic in South Los Angeles was plagued by thieves when it first opened. Even now, even cockroaches and rats are averse to it. It's because anyone can come and go, and there's nothing to sell there.

After logging in as a new user and greeting the incoming user, BB rolled back to its charging station. For now, this core robot can only use external arms for cleaning. Henry hasn't designed many functions yet.

So he poured a large bowl of water for the little tiger, and Henry did it himself. Then he took out three big steaks from the refrigerator and fried them, preparing to let Katie enjoy one of them.

Henry hadn't figured out whether to feed it raw or cooked food, so he simply let it eat the same cooked food as himself.

The only concern is that tigers are carnivores. They can't just follow humans and eat whatever they eat like dogs do. Tigers don't digest starch well enough, so eating too much plant matter or grains will only cause indigestion.

Now I really have to work hard to make money, otherwise I won’t be able to support this little ancestor.

Chapter 228 Emergency Brainwave Project

The most troublesome thing about having a pet at home is the problem of defecation and urination.

Although the baby has been given a new function, it is impossible to let Katie urinate and defecate anywhere in the house. Henry is a little worried about how to teach her to use the toilet in a fixed place.

After all, Katie was a tiger, albeit a cub, and it seemed impossible to train her the same way as a cat or dog. Henry paused for a moment after finishing the litter box, pondering it carefully as he held it in his hands.

The library didn't have any information on how to tame wild animals, so for something like this, maybe asking a circus trainer would be the right approach. But Henry didn't expect Katie to do any stunts, so why would he need a trainer?

As for communication...

No matter what kind of animal they are taming, those who can do it skillfully are those who are familiar with the animal's habits. They can also understand the animal's current mood from its movements and calls.

But if there was a way to know what animals were thinking, wouldn’t we be able to save ourselves the trouble of learning to interpret their behavior and calls?

Henry's previous experience with Professor X's violent brain invasion had given him some insights into the subject of brainwaves, though he hadn't yet followed through on his original idea of ​​designing a mind-protection helmet based on the principles of a Faraday cage.

But it's not easy to design a helmet, so he ran up to Professor X and said, "Hey, Baldy, come and see if you can read my mind?"

If it works, that's fine. If it doesn't, you'll be showing off your underwear. If you're really invaded, it's hard to resist with your fists, after all, you invited it yourself.

Secondly, who is Professor X? Why would he cooperate with me? Is he just being too arrogant, or is he just being too bored?

However, if you can't afford a mind-protection helmet, trying to decipher brainwaves is a good topic. Deciphering the human brain might be too difficult right away, so practicing on a tiger's brain is a good place to start.

At least tigers don’t have such complicated thoughts... I guess.

Men and women are like different species. How can Henry use his human mind to understand a tiger's thoughts? He can only try and see.

If I don't figure out how to communicate with Katie quickly, this well-fed little one will chase after the baby with full energy every day. Often, she'll chase the baby until it runs out of energy, and then she'll just hold it and chew on it.

Finally, the consequences of using plastic for the shell in order to save trouble are revealed here.

The poor core robot, used as a tooth-grinding tool, was always dented by Katie, and even when it rolled, it would get stuck in the shell. Henry had to repair it from time to time, otherwise the little thing would be useless.

No need to say more, just do it. Brainwave devices are not difficult to use; just think of them as another language and interpret them.

The most important thing is how to collect data correctly and how to find homogeneity from the huge data matrix to determine whether a certain brain wave pattern represents a certain word or a certain emotion.

Perhaps we can use smell, that is, the hormones produced by the body in response to emotions, to judge what kind of mood a person is in.

Collecting this kind of micro-smell is very difficult, just as difficult as collecting brain waves, and both are collection targets that are easily affected by environmental interference.

If the sensitivity of the sensor is reduced, it is very likely that the correct information will not be collected. However, if it is relatively increased, it will be more susceptible to external interference.

All of this required the use of computers to process large amounts of data. To expedite his research, Henry had to improve and upgrade his computer equipment.

The goal is not computing power as most people think, but data storage devices, transmission methods and capacity, that is, hard drives.

The mainstream hard drive of this era was a 5400 rpm IDE hard drive, also known as the ATA specification, with capacities ranging from tens to hundreds of MB. If you wanted a durable, large-capacity, and high-speed hard drive, you would buy a SCSI-spec hard drive.

And because of the support of SCSI interface, the use of multiple hard drives has also developed various fault-tolerant disk arrays, the so-called RAID.

The SCSI interface is not only used for hard drives, but also for all peripheral devices other than the CPU, motherboard, and memory. It primarily serves as an independent processor, sharing CPU functions to improve the computer's overall processing efficiency.

As CPU frequencies continue to increase and performance continues to improve, the need for additional SCSI devices will eventually be eliminated. There may even be a situation where the speed of other computer peripherals cannot keep up with the full speed of the CPU.

Therefore, after the CPU frequency develops to a certain stage, it no longer moves towards "faster" but towards multi-core multitasking, allowing the computer to process more things at the same time.

However, the advancement of hard drives was only from the IDE interface to the SATA interface. It was not until the advent of solid-state drives that computer performance was significantly improved in user perception.

Previously, when Henry was tinkering with various computer devices, his main focus was on the three major components: CPU, motherboard and memory, and he was developing them towards server-level scalability.

The rest of the equipment was purchased ready-made, especially hard drives, floppy disks, and optical drives, which were relatively mature and hadn't seen much significant advancement.

The main project he had previously focused on was helping a group of like-minded people on the Internet build the Linux ecosystem. Henry was like a worker adding bricks and tiles, while the engineers responsible for planning and directing the work were others.

One of the major features of Linux is that it can find ways to make some old computers run smoothly and extend the service life of these old computers.

So, chasing computer performance is just a way to satisfy the Kryptonian's sense of accomplishment. What you make with your own hands is superior to what's available on the market, or even what comes out of someone else's lab.

In fact, the Linux system can't perform very well at all.

But when it came to actual combat, Henry realized that there was still a part that was holding him back. So, he had to make up for this shortcoming.

Henry, who was just taking apart the original hard drive for modification and processing at the workbench, was thinking about the NAND_Flash technology that could be used for SSDs in the future, and wondering whether he should make some solid-state drives.

BB, recently upgraded to a metal case, ran out of battery after being chased around by Katie, and collapsed at Henry's feet. Henry had no choice but to replace the batteries; now, trying to keep BB safely on the charging dock was practically impossible.

Although there's still some progress in reading tiger brainwaves, the good news is that this little guy has learned to go to a designated spot to relieve himself. However, his high energy level doesn't seem to satisfy him by simply running around the house.

The house we rented from Gary was large enough to accommodate a small family, but it contained a lot of equipment, including audio equipment, computers, sofas, a TV, and kitchen utensils.

To prevent the tiger cubs from damaging the equipment, Henry had of course implemented some non-invasive protective measures. Basically, he created a protective barrier; if it got chewed or torn, it would only be the barrier itself, which could be replaced.

But this also reduced Katie's space for movement, which made Henry seriously consider whether to build a cat climbing frame or something like that to give Katie more space for movement.

Just when he was distracted, the call bell in the black clinic far away in South Los Angeles rang again.

Business was coming again. Henry didn't hesitate, changed into his tinker's attire, and set out again.

Get today's wind vane column recommendation, recommended during 9 pm plus one more update. Thank you all for your support

Chapter 229 Everyday Casualties Part 3

In fact, the black clinic has no back door. The place that many injured people who come to the clinic think is the back door is actually a small room used as a warehouse, without even a window.

Besides the empty supply rack, there was a single bed, intended to be one of three burrows, but never actually used.

On the other side of the small room's wall was the internal corridor of the apartment building. Since there weren't many residents in the apartment building, the corridor was rarely visited.

It was at this position that the Tinker used his super speed to achieve molecular penetration, passing through the wall and creating the illusion of opening the clinic from inside.

But when he opened the door and saw the person pretending to ring the doorbell, he immediately put on an unhappy expression and said, "You are not hurt, get out."

Saying that, he was about to close the door.

"Wait a moment!"

He was wearing a cheap suit, but his attire was not formal at all, with his shirt half-pulled out and his suit buttons unbuttoned. Add to that the tattoos showing on his neck and wrists, and you can't imagine such a man being serious.

He grabbed the tinker's hand as he was about to close the door and said, "Our boss wants you to come over."

"This place belongs to Big Old Ou, you know." The repairman mentioned the name of the landlord, Old Hei.

But the white guy just chuckled and said, "Even Big Ou wouldn't dare to offend our boss. You said he's protecting this place, do you think it would work?"

The tinker struggled, but then realized the other man was holding him tightly. He could only say with disgust, "So, you won't let me get some tools. Are you planning on having me use a kitchen knife and sewing needle to save him when we get there? Or are you planning on finding a doctor?"

"Hey hey." The young man let go of his hand, but still threatened: "Doctor, don't even think about running away. You can't get away no matter what, you know."

The tinker suddenly became curious: did the other party know that he was a waiter at the Continental Hotel? Or did the Continental Hotel actually not care about the life and death of its waiters?

On second thought, this wasn't too much of an exaggeration. My relationship with the Mainland Hotel was simply that of an outsourced service provider. Strictly speaking, I wasn't actually an employee of the Mainland Hotel.

If someone with similar strength came forward, would the Continental Hotel really go to war with the other party just because of someone who is not even their godson?

This made the tinker curious about who was behind this white guy. Was he just a clueless youngster? Or was he another powerful figure?

Even without the young man outside urging him, the repairman wanted to see the world, so he picked up the old handbag he had bought from the flea market, which contained various medical instruments and simple medicines, and followed.

Before leaving, remember to put away the call bell and change the message note to "On call" to avoid being overwhelmed by calls from others.

After completing all this, the tinker followed the young man to the alley entrance. The car that was used to pick them up was a Rolls-Royce, a low-end version of the top luxury car...

This shows that the owner of this car is just rich, but does not have the kind of power that can be seen in the open.

However, even if it is a low-end version, a Rolls-Royce is still a Rolls-Royce, and the feeling of sitting in it is different.

This isn't about feeling expensive, or getting high from the hand-painted lines on the bodywork. It's about the angle of the sofa seat and the feel of the leather, which is different from cheap plastic leather sofas with sponge pads.

There's no unpleasant odor inside the car. As soon as the door is closed, the air inside and outside is like two different worlds, completely blocking out the strange smell of oil smoke.

Especially for British and European series cars, the tough suspension system and the soft suspension of American cars give a completely different riding feeling.

Driving your own Cadillac is like riding on a waterbed that's not fully filled. If the road conditions are a little worse and you don't choose the right route, you'll be so shaken that you'll question your life.

However, this Rolls-Royce did not drive to a large villa in the wealthy area that matched its size. Instead, it drove into a warehouse area. Turning left and right, it entered a place that looked like an abandoned factory.

It's like seeing someone with a slicked-back hair, wearing a neat suit and tie, but wearing patterned shorts that reveal their hairy legs, and a pair of beach slippers.

I really want to complain, but I don’t know where to start.

The abandoned factory was very empty, mostly dirty and smelly, except for one area that was beautifully decorated, as if it had been designed by a famous artist.

There is a floor lamp of art grade, a French Rococo-style sofa chair, and an antique coffee table that looks very old.

The paintings that couldn't be hung on the walls were arranged in a row on easels, and Persian carpets, so expensive that you didn't know where to put your feet, covered a small area.

They even had a grand piano, placed to one side. A girl in an evening gown was sitting at the piano, playing melodious music. The music was so soft and gentle that it was truly captivating.

Being brought to this incongruous high-end area, the repairman finally saw the real person he was visiting. He was a fat old white man wearing a bright red bathrobe, hugging two stunning black and white women on his left and right.

Looking at his burly figure, if I wasn't in Los Angeles, I would have suspected that I had met the classic villain of the Marvel Universe, Kingpin.

But Jin is not so tasteless as to stitch together good and bad things like a patchwork.

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