Chapter 432 Echo Positioning

Sick**, Lin Hong is still lying **.

He accidentally found that he could explore the surrounding environment through the echo of sound, and he couldn't help feeling very fresh and magical.

In fact, the phenomenon of echolocation is very common in nature. For example, bats, toothed whales, seals and sea lions all have such magical abilities. They can detect the environment through their own ultrasonic waves, especially bats, which can fly rapidly in the air without touching any obstacles, even Through this ability, you can also catch small mosquitoes in the air. The ability of echo positioning has undoubtedly reached the point of trance~~ Shushuw.cn-update the first release~~ into the point.

Although it is known that there is such a phenomenon in nature, and scientists have also carried out targeted research to develop artificial devices such as undersea sonar, this is a little too far away for Lin Hong. It's like hearing that the country has successfully launched a satellite again. There is no intersection with myself at all, and there is no feeling at all.

But this time it was different, he personally experienced the effect of echolocation.

The inadvertent "tap" in his mouth actually modeled the surrounding environment in his own brain. At first glance, this way is really amazing.

Lin Hong temporarily forgot to continue writing the driver, but began to carefully study the principle of this phenomenon.

He is such a character. This exploration of the unknown field has an inexplicable attraction to him. If he doesn't figure out its essential principles, he will feel as if there are countless ants biting in his heart, which is crazy.

Therefore, there was a "tap" in the ward from time to time, and Xu Wenjing and Wang Yuqing were completely numb to it.

After some exploration, Lin Hong finally has a deeper understanding of the basic principles of echolocation.

Echo is a reflection that occurs after a sound wave collides with an object. Generally, this phenomenon is most obvious in places where it is narrow or there is a barrier in front of it.

When Lin Hong was a child, he also played echo games, ran to the top of the mountain, and then roared loudly below. After a while, there will be echoes coming back.

These echoes are transmitted at different times, and the size of the sound is different. Even if you listen carefully, the tone nature of the sound is different.

After testing, Lin Hong gradually figured out the law.

Among them, the timing of the sound has a lot to do with the distance of the object from itself. This is actually a conversion process. If it is quantified, the speed of sound is multiplied by the time of propagation, and then divided by two, the distance of the object is obtained.

Of course, the transmission time is generally very short, especially in this kind of room. At a natural speed of sound of 340 meters, you can run back and forth ten times in less than a second.

It is precisely because of the short time and the small sound that the back echo is often ignored, mainly because it directly overlaps with the original sound. The interval between the two is too short to be separated at all. That's why in a narrow and closed room, the voice feels louder than the open environment.

Lin Hong uses a super-brain system to monitor the sound, and the sensitivity of receiving sound signals has been unprecedentedly improved. Of course, it does not mean that the native system is not sensitive. It may be due to the need for evolution, the human ear directly filters these invalid noises and muffles them.

The most typical example is the blind. If they have no vision, their hearing will be enhanced accordingly, and they can hear sounds that ordinary people can't hear, which is equivalent to the brain re-opening the fuzzy filtering mechanism.

The superbrain system can calculate the distance of the object that reflects the echo according to the nuances transmitted back from the echo, and can also judge the size of the object according to the change of its wavelength. Finally, it is the nature of the object, which can be identified according to the amplitude of the sound. Objects of different materials have obvious differences in the reflected sound waves.

The combination of the parameters of vision, size, shape and material can detect the surrounding environment clearly.

As soon as Lin Hong heard these echoes at that time, he directly realized this, which was also the reason why he had a strong interest in this phenomenon.

In order to display them more vividly on the retinal screen, Lin Hong directly processed these signals, directly graphically modeled these signals, and then displayed them on the retinal screen to make them as close as possible with his eyes.

Of course, the image created in this way has no color characteristics, all of which are black, white and gray. In this case, it is a bit like a dim light at night. The scenery seen in the eyes has only a faint outline, and there is no information such as color at all.

If necessary in the future, Lin Hong can also add an automatic dyeing function. First, he can judge what kind of object it is, and then dye it according to the color of the common object, so that the scenery he sees will not be too monotonous and depressing.

In addition, Lin Hong also added a direction judgment mechanism to it, which can adjust the angle of the picture on the retina screen through the control of neck steering and other body parts.

For example, when the head turns to the left, the picture on the retina screen also rotates, directly displaying the scene on the left in front, which is a complete simulation of normal vision.

When Lin Hong finished this function, it was already night. At this time, Wang Yuqing had also gone home, leaving Xu Wenjing alone who was still by Lin Hong's side to take care of him.

Lin Hong then wrote a simple function for his right hand, which can just control the index finger to move up and down, similar to mouse clicks. In this way, as long as Xu Wenjing holds his right hand, the two can communicate without having to do it in the blink of an eye and writing notes like before. And now Lin Hong's hearing has basically returned to normal, and Xu Wenjing can talk to him directly through language.

There are only two of them left here. Lin Hong was distracted and used for both purposes. While continuing to write the driver of the limb control module, he explained the basic situation of his brain to Xu Wenjing.

Only then did Xu Wenjing know that Lin Hong had fallen when he was a child and just fell to the back of his head. Since then, he has begun to be different. At first, he was mentally retarded and became a fool. He was looked down upon and laughed at. And from that time on, he suffered from "sleeplessness" and never needed to sleep.

When Xu Wenjing heard this, her heart was caught. She really didn't expect that Lin Hong had such a sad experience in her childhood, and tears couldn't help rolling in her eyes.

Fortunately, Lin Hong's brain became more and more useful, and he began to try his best to acquire knowledge. Finally, he met Xu Zhizhong, stepped into the temple of radio, and broke into the world of ham, so he also became a springboard in turn and met many people, including Xu Wenjing.

"Where's your insomnia? Did you get better later?" After Xu Wenjing calmed down, she remembered that Lin Hong couldn't sleep when he was a child.

She can't imagine what kind of experience a person would have if she didn't sleep.

At the beginning, when she was in the Spring Festival, she wanted to learn from her brother many times, and insisted on staying up all night, but in the end, she never succeeded once. The state of want to sleep but can't sleep is really uncomfortable. She has had several such hard-working experiences.

Lin Hong's fingers tapped rhythmically in the palm of her hand: [No, this problem has always existed. At the beginning, I also went to the hospital for a check-up, and I couldn't find out the reason at all.

Later, in order to be afraid of my father's worry, I hid this matter, and they don't know this situation until now. After they get here, don't tell them for the time being.

Hearing his words, Xu Wenjing was completely shocked.

"You mean that you have never slept since you were a child?"

This news is too shocking!

This has been more than ten years. Xu Wenjing stroked Lin Hong's face with pain and muttered, "Why have you never heard you talk about this matter?"

[In fact, there is no problem, and it doesn't matter if you can't sleep. As you know, I later contacted martial arts, and I can relax my brain by standing on a pile. It is also because of this that the previous headaches have gradually disappeared. In this way, it only took me 20 years, but it is equivalent to living nearly 40 years and making money.]

"Your joke is not funny at all!" Xu Wenjing said sadly, "Is it because of this reason that you have become like this? Hong, you can't pay attention to this matter. You must get effective treatment. Shall we go to see the best brain doctor in the world? They must know how to treat your disease.

[It's useless. The current medicine has not reached this level. I am very clear about my problem. Don't worry, I will definitely find a way. Don't you think I'm slowly recovering now? Believe me, I should be able to walk on the ground tomorrow. The good news for you is that mine did fall asleep yesterday. It's good news, isn't it?

Xu Wenjing heard the words, thought for a long time, and said, "Hong, is there anything else you haven't told me? How do you find a way by yourself? How do you know when you can get better?

In fact, Xu Wenjing has had doubts about this problem for a long time. He is obviously recovering in a good direction now, but it seems too incomprehensible. He is a patient himself. Why does he seem to know these situations well?

Lin Hong was silent for a while, and finally his fingers began to move again: [If I say that the human brain can be programmed like a computer, do you believe it?]