Technology and life: starting with solar cars

Chapter 105

Once the owner loses control of the machine, it is no different from a little white rabbit waiting to be slaughtered.

Therefore, it is impossible for Liu Yun to use those intelligent processors now, and he will not use those intelligent processors in the future.

Besides, the mecha version 1.0 has very low requirements on the processor, it only needs to complete the processing of a few hundred actions, which is really very simple.Such a small amount of calculation does not require any particularly powerful processor at all, and any processor can complete this kind of work.If you have to give this processor a model to describe it, X3 335, a three-core CPU that has been eliminated for more than ten years, and CPUs above this CPU can basically handle various requests for Mecha 1.0, about a dozen yuan Money looks~~~
Therefore, the cost to realize the control of the mecha is not very high, or even negligible.In addition to the CPU, which is a processor with very low requirements, it is natural to need a circuit board soldered with accessories such as graphics card, memory, hard disk, etc., plus the CPU to form a complete motherboard. This motherboard can be said to be the entire 1.0 mech. The control center, through the cooperation of various electronic components on the motherboard, the operator can control the mecha.

And Mecha 1.0 also has very low requirements for the graphics card. Using those core graphics cards can basically achieve the auxiliary effect on the CPU. If you don’t need a core graphics card, you can also use the GTS240 graphics card from ancient times.

As for the memory sticks on the mainboard, the mecha has very low requirements for this, not to mention the need to use DDR4 memory sticks, even DDR3 memory sticks are good, if you want to reduce the cost, use DDR2 memory sticks It is not impossible, anyway, the performance of the DDR2 memory stick is sufficient.

For the memory card on the main board, a 2G storage is enough, mainly to store some system auxiliary files run by the CPU, and there is no need to store a bunch of data at all.The controller's request is at most recorded in the system log. Normally, the controller's request will be cleared after the mecha completes the execution of the controller's command, and will not continue to be recorded like this .

It is precisely because of this overlay file storage method that the mecha's requirements for memory capacity are not so high.

In addition to these accessories on the motherboard is the power supply.

The power supply is very simple, it is nothing more than choosing whether the armor supplies 12V or 220 for household use.In order for the car to run quickly, it is natural to use 220V household power supply to make the car more powerful. The power supply horsepower of 12V is too small to realize the fast movement of the armor. Let’s make an analogy of what kind of electricity is 12V. The 12V power supply of the car we usually use is definitely not enough. Such a 12V power supply The voltage can only be used to charge some mobile devices or to power the driving recorder.

Compared with the voltage of 220V and 380V, the voltage of 12V is really small. With such a low voltage, let alone driving the mech to move quickly, even if it is used to supply power to the car, the car cannot move quickly. The reason is very simple. The 12V voltage is too bad to support objects. It is impossible to drive some heavy things with 12V voltage. It is still possible to use 12V voltage for charging and the like.

380V is called three-phase electricity, and 220V is our commonly used voltage. In order to promote better in the future, Mecha 1.0 must choose 220V voltage. As for the voltage of 380V, Liu Yun has not considered it, because Liu Yun thinks that 380V Electricity is completely unnecessary.After all, 380V electricity is not very popular in daily life. These 380V voltages are basically used for some commercial purposes, such as watering the ground in the vegetable garden, such as some industrial purposes.

For better promotion, it is natural to choose 220v household electricity, so that you can avoid laying power supply equipment for mechas in the future.Even for convenience, it is also possible to design a 1.0v charging socket for the 220 version of the mecha. At that time, as long as the 220v is connected to the mecha from the outside, the charging operation of the mecha can be completed.

After the choice of voltage is determined, the next step is the mechanical design part.For the mechanical design part, Liu Yun intends to use the previous method of connection - steel wire plus spring, the continuous contraction and stretching of the steel wire realizes the rise and fall of the mechanical arm to the left or right, or forward or backward, And the purpose of putting spring on the outside of the steel wire is to make the stretching of the steel wire faster.

For example, if the steel wire controlling the boom receives a command to descend at this time, the steel wire controlling the boom will start to loosen. When the steel wire stretches, one of the biggest problems is that it relies on gravity when stretching, purely relying on gravity To stretch, the stretching speed will be very slow, which cannot meet the speed requirements of the mech at all, so the only way to make the wire rope stretch quickly is through other methods. The method used here is to realize the fast speed of the wire rope through the spring method. Stretch, in order to achieve the degree of stretch required by the mecha.Liu Yun's plan is like this, because Liu Yun doesn't know if there is a better way to realize the extension and contraction of the mechanical arm. At present, Liu Yun only knows this method to realize the continuous movement of the mechanical arm through springs and wire ropes. .

As for other better methods, Liu Yun is not clear, but if he finds a better way to stretch the robotic arm in the future, Liu Yun will definitely replace this combination of wire rope and spring with a more effective combination.For now, this combination of spring and wire rope is sufficient for the requirements of the Mecha 1.0 version, and can quickly realize various actions of the Mecha 1.0, which is enough to complete the design of the Mecha 1.0 version.

Liu Yun's plan is to use the wire rope to control the movement of the mech's upper arm and forearm. When the wire rope is stretched, the corresponding mechanical upper arm or mechanical forearm will fall in the direction of the wire rope or move in other directions.The stretching of the wire rope is not to say that it is only a downward movement, it may also be a forward movement or a leftward movement or a rightward movement.

This is because there is not only one wire rope when designing the wire rope. In other words, there are several wire ropes on the upper arm or the forearm of the robotic arm to control the movement of the robotic arm, and there is no wire rope on the upper arm or the forearm. The setting is that each big arm or small arm has 4 steel wire ropes. It is through the steel wire ropes connected up, down, left, and right on the big and small arms that the control of the robot arm can be realized, and the robot arm can continue to move according to the idea of ​​the mech operator. change direction.

When the operator sends out instructions, the control center will send instructions to the wire rope on the robotic arm, and the wire rope that receives the instruction will start to complete the instruction.

(End of this chapter)