Chapter 76: One small step for a slipper, one giant leap for mankind

The remote control system has been set up, and the next thing on the agenda is the image transmission link.

During the two days of the weekend, Wang Ning and Bai Zhen discussed in detail the technical points of using the Icom725 amateur radio station for image transmission.

"Use cameras, right?" Banxia squatted on the floor of the living room, holding the UV9R intercom in her hand, with cameras piled up in front of her. "I found so many cameras that I might have emptied all the cameras on Zhujiang Road."

In the past week, the girl went to Zhujiang Road every day to search and brought back a huge amount of electronic waste.

LCD monitors, computer hosts, motherboards, coaxial cables, cameras, mice, keyboards, all useful and unused, familiar and unfamiliar, were all loaded into sacks and pulled back on a small trailer.

This is a world where junkies are ecstatic.

"I have so many cameras here, which one should I use?" Banxia asked.

After the remote control system was established, communication became much more convenient. The most obvious change was that the girl no longer had to stay in the room all the time.

She can walk around the house with her walkie-talkie.

"It's best to use a UVC camera, OVER." Bai Yang's voice came from the walkie-talkie.

"BG4MXH, what is a UVC camera?"

"UVC stands for USB VIDEO CLASS, a standard protocol." Bai Yang replied, "In simple terms, it is a driver-free camera that can be used as soon as it is plugged in. It is very convenient. OVER."

“So which one is the UVC camera?”

Banxia picked and chose casually. There were so many cameras, including hemispherical, cylindrical, rectangular, and one with a stand like a small desk lamp.

"The vast majority of webcams are UVC cameras, including those you find," Bai Yang said. "Just pick one that works properly, OVER."

Establishing an image transmission link is much more complicated than a remote control system.

Wang Ning said that a pure analog repeater like GR3188 is not much different from 725 in terms of communication protocol, because it is composed of two base stations and they are all one family. As long as the path at the hardware level is built correctly, and the repeater and the Guailiangwu are aligned, the whole link can be made to work.

But image transmission is different.

The image data collected by the camera needs to be transmitted to Baiyang through Guailiangwu, but the camera and the amateur radio are not the same family. The webcam is the new generation, and the amateur radio is the antique. The data exchange between them is undoubtedly like a chicken speaking a duck language and they cannot understand each other, so they need a powerful translator, a core machine, a connection hub, to take on the function of transcoding.

The best person to transcode the image data into a signal that can be transmitted by amateur radio stations is undoubtedly a computer.

Computer is the most convenient and powerful platform. As long as Banxia can find a computer that can work properly, all problems will be solved.

"It's useless. These computers are useless." Banxia shook her head. "They are all rusted and have no response when plugged in... Oh no!"

She suddenly exclaimed.

"What's wrong, Miss? What happened?"

After a few seconds the girl replied:

"It exploded. The motherboard exploded. There was a lot of smoke. Ahem... I'm going to go out and take shelter."

Unable to find a usable computer, Wang Ning and Bai Zhen had to settle for the next best thing. They began to discuss the feasibility of development boards and Raspberry Pi in this system.

"What system does Raspberry Pi use?" Wang Ning asked.

"Linux." Bai Zhen replied.

"Are you good at development on the Linux platform?" Wang Ning asked.

"I am best at single-chip microcomputers and DOS. You know that most of the old-timers in the army use DOS." Bai Zhen said, "I know a little bit about Linux."

"To what extent?"

“I can spell.”

Banxia ran to the balcony, opened the window, let the night breeze blow in, then leaned on the balcony and looked out leisurely.

"I feel like my life has meaning again," she said suddenly.

Bai Yang was stunned.

"Why do you say that? OVER."

"Before I contacted you, I lived day by day. I didn't know why I was still alive in this world, nor did I know what I wanted to do. After the teacher left, I lived alone in the room, always sitting there for the whole day without saying a word. Gradually, I couldn't even speak anymore, because no one talked to me anymore. But I couldn't talk to myself, right? Talking to myself all the time would make me crazy, so I could only force myself to sing." Banxia said, "If I don't sing, I will become mute. Fortunately, you contacted me now. If it was two years later, I could only talk to you like this: Woo woo woo! Woo woo!"

She giggled.

"But now I feel that life is so interesting. I finally have something to do, whether it's picking up trash on Zhujiang Road or modifying the repeater station and 725. When I go to bed the night before, I can think about what I'm going to do the next day. This kind of life is great. I love it so much."

"Uh... don't you think it's troublesome and boring to do this?" Bai Yang asked, "Won't you get bored? OVER."

"I don't think so." Banxia said.

"Miss, you still have to learn programming later, so don't be too confident." Bai Yang reminded, "That is a more boring and difficult task. OVER."

"Come on!"

Banxia was full of confidence. What could be more difficult than her previous life?

——Two days later she rolled on the ground:

"I'm not doing this anymore! I'm not doing this anymore! It just won't work for me! This is unscientific! This is incomprehensible! The code I entered is correct, why won't it run?"

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"BG4MXH, what data do you need after the image transmission link is established?" Banxia asked, "We can only contact you at 10 pm. It will be dark outside. What can we capture?"

"We are still discussing this." Bai Yang replied, "Miss, image transmission is not the point. The point is to broaden the data transmission link. Currently, we can only use radio voice communication, which is too restrictive. We must first pave the road. Only after the road is paved can larger vehicles pass through. Do you understand? OVER."

The girl nodded.

She could understand what Bai Yang said, but she didn't know what she could do after widening the data channel.

It was obvious that Banxia knew almost nothing about the world-destroying disaster in the past.

And there is too little information left in the world about that disaster. Human civilization was completely destroyed in a very short period of time, and seven billion people were left with no remains. Only crashed planes, burned-out cars, and craters on the ground symbolize the resistance that once existed. Perhaps some corner of the earth still has relevant detailed information, but it may be in Greenland, in the deep Pacific Ocean, or at the North American Aerospace Defense Command in Cheyenne Mountain, all places that Banxia cannot reach.

Although the girl was confused, she still did all the work as planned.

Maybe there is some method over there?

——Bai Yang actually didn’t know what method there was. He just followed Zhao Bowen’s instructions and pushed the work forward before he returned.

If there is one person among the seven billion people in the world who has a comprehensive plan in his mind at this moment, then that person is undoubtedly Zhao Bowen.

Bai Yang didn't know where Lao Zhao was now. He hadn't called to ask for applause for a long time. There was no news from this person for many days, as if he had evaporated from the face of the earth.

Sometimes Bai Yang had wild thoughts, thinking that Uncle Zhao might have been locked up as a mental patient, and his cell phone and other things were confiscated, so he had been out of contact for a long time. As he thought about it, the following scene emerged in his mind: Zhao Bowen was locked up in the intensive care isolation ward, with disheveled hair and sunken eyes, desperately banging on the iron door and yelling at the nurse to let me out! If you don't let me out, the world will be destroyed! Then the other patients laughed, and an older mentally ill man next door counted with his fingers and comforted him, saying that young man, don't worry, there will be a arhat in the world and a mighty dragon.

If that were true, the world would be doomed.

With Bai Yang's small brain, he couldn't guess what Zhao Bowen was planning. It seemed that Uncle Zhao was playing a big game.

Bai Yang is waiting for Zhao Bowen's next move.

Uncle Zhao's move was successful, and they might be able to glimpse the truth about the doomsday disaster. However, before Zhao Bowen's move fell, BG4MSR suddenly received a piece of news that shocked everyone present.

This was a major turning point, allowing Bai Yang and others to take a big step forward towards the truth.

This big step is thanks to a slipper.

That’s one small step for a slipper, one giant leap for mankind.

(End of this chapter)