Great Power Technology: Domination Of The World Starts With Chips

Accuracy refers to the gap between the actions made by people and the actions imagined in the mind.

When I punched out, I originally wanted to hit the center of the target directly, but after I punched it, it was slightly to the side, because the potential difference conducted in the nerve was different from the potential difference required to hit the center of the target. Size, there is a certain error in the number after ten decimal places.

The more precise the movement, the more the two data are the same.

The size of the potential difference controls the various angles of the action in three-dimensional space.

Therefore, identifying the magnitude of the potential difference is the fundamental principle of this electrical signal identification technology to translate nerve electrical signals into information that can be recognized by chips.

The transistors and electronic devices in the chip can judge the size of these weak potential differences, identify the messages conveyed by the nerves, and then process them into related instructions, so as to control the motors in the mechanical exoskeleton and control the activities of the joints.

So Ye Cheng's current task is how to make the chip in turn process the current in the exoskeleton circuit, and then translate it into a precise nerve potential difference, which is then recognized by the nerve.

The difficulty of doing this is not low.

This requires accurate calculation of each resistance of the circuit and the voltage applied to it, and it also needs to reach ten decimal places.

The resistance is also the most troublesome, because in the calculation process, the chip resistance, artificial nerve resistance, and line resistance must be calculated accurately, and the line resistance is the most troublesome, because the line in the exoskeleton is relatively long, and the chip resistance is relatively long. Electrical resistance and artificial nerve resistance are already known and given in the data.

The size of the line resistance is proportional to the length, the cross-sectional area is inversely proportional, and there is also a resistivity.

The resistivity is in turn affected by the temperature of the wire.

So it is more troublesome.

Ye Cheng thought for a moment, and soon thought of Xiaobai.

Xiaobai now has a supercomputer, and usually helps Zhong Xin, Guge and the others to optimize related circuits. For Xiaobai, it is very good at this aspect.

"noob."

"Here, Master." Xiao Bai's voice sounded.

Ye Cheng thought for a while and said, "Taking the left arm of the exoskeleton designed by Guge as the structural diagram, if I want to use the pressure sensor in the palm of my hand to realize the sense of touch, then from the pressure sensor to the artificial nerve, you can accurately Control the final output voltage at, um..."

He looked at the magnitude of the tactile nerve potential difference in the data, and then continued: "Is it controlled between the tactile potential difference?"

All he wants to achieve for the time being is to add a sense of touch to the exoskeleton.

Even if it is only covering the part of the hand, the tactile sense of the hand is the most important for the user.

It’s just that to realize the sense of touch, the cost has to rise a lot. Just adding an artificial nerve, as for the chip, it has to be redesigned, but because it only adds a touch function, the 7nm process is still enough, and now it is used to identify nerves. The chip of the electrical signal is very small, only less than 30 square millimeters, and there is no problem in expanding it.

As for things like virtual networks, because it is more complicated, all five senses of human beings must be realized, so don't think about it for the time being. Wait until the tactile sense is successful and you have experience, and then use it as the next goal of preparation for development.

At this time, Xiaobai asked, "What kind of wire do you use?"

"Copper wire."

After a while, Xiaobai replied: "No problem! But the current in the wire will change with the temperature of the wire, and the chip needs to respond according to the current change, so an intelligent current controller should be designed in the circuit to stabilize the input. Otherwise, once the current output to the artificial nerve changes, it will easily affect the feeling received by the human brain."

Ye Cheng nodded.

If a person using a mechanical prosthetic hand holds a mobile phone with a prosthetic hand, he obviously used a lot of strength to hold the mobile phone, but because the magnitude of the tactile current is inaccurate, the tactile feedback makes him think that his strength is very small, and the result is another make more effort.

Then the phone was broken by him, and Zhiqi will definitely trouble them when the time comes.

So if you want to control the current according to the temperature of the wire, you need to add a controller.

The current controller is a resistor that can be adjusted, but it obviously needs intelligent control to ensure that the current input to the chip is maintained at a constant value, so that after the chip is processed, the output current can be accurate to ten decimal places, so as to give the brain a response The most accurate feeling.

But how to realize the intelligent control of the current controller in such a small place?

Ye Cheng thought about it, and needed to add another program to regulate the current controller.

This requires adding a current detector and an integrated circuit in the bone arm connector, which are specially used to monitor the magnitude of the current, and then command the change of the current controller.

It is also troublesome, and the volume of the bone arm connector must be enlarged to accommodate these new devices.

Thinking of these questions, Ye Cheng had a headache in his head.

"So, it would be great if there were room-temperature superconductors, so we don't have to worry about the resistance of these wires at all." Ye Cheng couldn't help but sigh in his heart.

Superconductors have no resistance, which reduces all these unstable things. In this way, what kind of current he wants to achieve is completely easy.

As long as he now masters the manufacturing method of room-temperature superconductors, he dares to engage in virtual reality directly!

Moreover, the value of room-temperature superconductors cannot be fully tapped out by just a virtual reality.

Let’s just say that the maglev train is faster than the high-speed rail. I don’t know where it went. I remember that the President of the United States was still envious of the high-speed rail all over China when he gave a speech a few days ago.

There are also effects on nuclear fusion and power transmission.

"Let me be healthy, how much is the integral of the room temperature superconducting material."

Ye Cheng couldn't help but opened the system mall.

Room temperature superconducting materials, worth 30 million.

Ye Cheng couldn't help curling his lips.

"Really expensive."

But at this moment, a problem that he had considered before could not help but arise at this time.

"The system, nuclear fusion technology, should use room-temperature superconductors, right? Then I spent 30 million on room-temperature superconductors, and another 100 million on nuclear fusion?"

System: "The host will know after completing ten achievements."

"Ten achievements?"

Ye Cheng was taken aback.

Now he has completed eight achievements, and he is only two short of ten achievements. However, the probability of this thing triggering is too metaphysical, and Ye Cheng doesn't know what he has done to complete the achievements.

"Then we can only wait until later."

Ye Cheng shook his head and stopped thinking about it.

Then, he started to design the circuit of the current controller just now.

At this time, the role of super inspiration began to play out.

He can come up with a circuit that can hardly be further optimized if he thinks about it casually.

After designing the circuit, he began to design the corresponding integrated circuit, integrating the program of monitoring the circuit and regulating the current controller into it.

I use their Zhiqi EDA software, relying on Xiaobai's assistance and his own super inspiration, the progress is constantly improving