This is how black technology should be used

Chapter 96 The Problem

After today's test is finished, the exoskeleton prototype has been scarred, but it contributed more data.

Also, doing this kind of test is too tiring, and even a little dangerous. There are three testers in total.

Fortunately, they are just tired, and most of them have some scratches, which is not a big problem, because many high-intensity tests cannot use testers, but directly obtain the sensor data above.

However, there will be no high-intensity test today. It is a test left at the end. This kind of test has only one purpose, and that is to destroy the test prototype!
After a day of testing, Li Future and the technicians did not go to rest after eating, but went to the conference room for a meeting. They wanted to summarize the data obtained today and analyze the problems that occurred.

There are several key nodes in the technology of powered exoskeleton, the first is the material of exoskeleton.

Early exoskeletons were made of steel and aluminum, but this would cause the system to be too heavy, so that the power of the exoskeleton had to overcome its own weight in addition to driving the human body.

Therefore, the current research and development is reducing the dead weight, and more lightweight materials such as composite materials and titanium alloys are used to make the energy efficiency higher.

The exoskeleton that Li Weiwei used for Ma De's mother is made of aluminum alloy and engineering plastics, but the power of that exoskeleton is not strong. too much.

Now it is a military exoskeleton, which has very strict requirements for its own weight. In the case of limited power, only the lower the weight of the exoskeleton, it can hang thicker armor and carry more weapons and ammunition.

The polyethylene armor used for exoskeletons is very light now, it can defend against pistol bullets, but it is not so good against rifle bullets, basically it will crack after a few shots, if the second bullet hits the crack, it will be dangerous up.

Fortunately, there are not many such sharpshooters, and soldiers are not immobile targets after wearing exoskeletons.

There are also armors with stronger defenses, but this is the action device of the exoskeleton. It is this part that gives soldiers greater strength.

In the past, the hydraulic power cylinder was favored because of its large power output and accurate action execution, but its disadvantage was that it was too heavy and the hydraulic device might leak.

Now the focus of "action device" research and development is turning to small or micro permanent magnet servo motors, which can be assembled into tiny components to achieve high torque and high responsiveness of motion.

The exoskeleton that Li Weiwei made before is also a civilian version. The research institutes he contacted through the Science and Technology Alliance are also more civilian-use, so the things he got are not top-notch.

But when it came to the military individual exoskeleton, he didn't say anything, and those research institutes with serial numbers but no names sent over the best things.

That's why they were able to create this test machine that was equipped with lightweight armor and could carry a variety of weapons.

The same is true for the flexibility of the joints, which involves the ability of the exoskeleton to perform more tactical actions, such as crawling and jumping.

These movements are easy for human joints, but more difficult for exoskeletons that mimic human joints.

Especially the shoulder joints, hip joints, spine and other parts of the human body are difficult points for exoskeleton imitation.

At present, the mainstream exoskeleton is equipped with external spherical joints along the shoulders, hips and knees of the human body, and then connected by parallel connecting rods.

But during movement, these external artificial joints and connecting rods tend to misalign with the fit of the human body.

Although the existing exoskeleton system does not interfere with actions such as walking, running and directly crawling, it still has a great influence on the bending of the user.

The same is true for the military exoskeleton that Li Future participated in. After all, it has so many exoskeletons and hard armor. Although it can do various movements, it will never be as flexible as it is without armor.

Fortunately, it is enough.

A good exoskeleton system must have a sophisticated computer artificial intelligence control system to control the exoskeleton to respond to human body movements.

If the response speed is too slow, the action efficiency will be very low, just like an old lady crossing the road.

If the response speed is too fast, it may cause harm to the user, such as pulling eggs if the stride is too big.

Since different joints of the human body move at different speeds, the exoskeleton control system must also be able to coordinate the speed, so that the user feels that the exoskeleton is a kind of assistance rather than resistance.

Moreover, an advanced control system needs to be able to detect and prevent the user's wrong actions, such as falling, which is very important for disabled soldiers who have limited mobility.

Technology in this area is Li Future's strength. The original powered exoskeleton was used by "disabled people" whose movements are very inconvenient.

If the previous project can be regarded as a strong alliance between the two sides, then the issue of power supply is not so good.

Having an omnipotent reactor like Iron Man is only a fantasy in the movie. The existing internal combustion engine with strong power output cannot be applied due to problems such as noise and heat insulation. Therefore, current mainstream exoskeleton systems use batteries to drive motors.

High-capacity fuel cells are the focus of current research, but they can barely meet the needs. Some experts once imagined that the exoskeleton could use wireless power transmission in the future.

Now, the "future" is coming very quickly, and they have not been made to wait for the real distant future, and wireless power transmission has also come, but the real situation is far from the imagined situation.

The main reason is that the distance of wireless energy transmission is too short, only tens of meters. Judging from the current development, the individual exoskeleton system is likely to be used first in non-combat fields, such as logistics transportation, station maintenance, equipment repair, etc. In the case of heavy physical handling, the use of exoskeletons can ease the work intensity of soldiers.

They had already done tests in these scenarios. In order to cope with the short battery life, they directly let the exoskeleton work with cables.

But in this case, they have to reduce the number of people working on the site, and also arrange specific positions and routes of action. Only in this way can the number of cables entangled in one piece be reduced.

As a result, due to the reduction in the number of people and the need to always pay attention to evasion, the efficiency of regional work is even lower than before.

At most, the reduced number of people can go to other jobs, and the overall efficiency will be improved.

But that's only in daily situations. If it enters a wartime state, the mobility and complexity of personnel in various places will rise sharply, and the long cables connected to the exoskeleton will directly become cumbersome.

But now that Li Future has brought the technology of wireless charging distance up to tens of meters, this test machine can operate smoothly in this scenario, directly improving the work efficiency several times.

The logistics can be prepared quickly, which actually improves the combat effectiveness of the soldiers in disguise.

And it is not completely unable to fight on the front line, as long as it follows a vehicle with power generation function, it can properly participate in the battle.

For example, a truck gun with a high appearance rate in the army now has a semi-automatic loading system, as long as the soldier moves the shell weighing 90 kilograms from the cartridge in the middle of the truck to the loading machine at the rear of the truck, and then presses a button. , the loading machine can load 90 catties of ammunition into the artillery.

The mobility of the artillery mounted on the truck must be stronger, but the loading port of the artillery is also high, and it is not easy for ordinary soldiers to load it, so there is a semi-automatic loading machine.

After all, the shells weighed 90 kilograms. Even if they didn't need to be loaded into the high-level artillery, they only needed to be placed on the loader below, but the physical consumption of the soldiers would be huge after a long time.

The exoskeleton can play a very good auxiliary support role in the transportation process, but the original battery life is short when not connected, and it will be significantly cumbersome to connect online.

Well now, the truck cannon has a generator on it, so it has a lot of power. If you add a wireless transmission device to it, and then the soldier wears a powered exoskeleton with a receiving device, it is equivalent to carrying a super large battery.

But that's it. The tens of meters of wireless charging technology can only make the devices gather near the "energy transmission tower". Even if they can leave, they can only leave for a short time. You cannot leave for a period of time after that.

Because wireless charging is not instantaneous charging, it cannot fully charge the exoskeleton immediately.

Unless the car has enough spare batteries.

But even if you bring enough spare batteries, you can't support the exoskeleton to go further. This is equivalent to the loss of tangible lines, but the invisible lines still connect them.

This is okay if it is in those places with sufficient energy, but if the powered exoskeleton is to perform its tasks in the harsh conditions of border patrols, it is still a lot of effort.

The mobile power supply can only follow a certain distance. When it comes to places that are particularly difficult to pass, such as steep slopes, dense forests and other places, the mobile power supply cannot move.

Another way is to erect a series of wireless charging stations along the border.

But that is obviously impossible.

It's okay in peacetime, but once it's wartime, those charging piles must be the first targets to be destroyed.

But this becomes a paradox.

It is a bit wasteful to build a series of electric piles without exoskeletons in normal times. Exoskeletons are used in wartime, but the fixed electric piles are too easy to be destroyed.

So today's test seems to be going well, but in fact there are still many problems.

"There is no major problem with the overall technology of the No. 1 prototype. After all, the technology provided by Comrade Li Weiwei is very complete. Now the other modules are sufficient. The rest is to carry out practical classification and refined research. The main problem is the length of the powered exoskeleton. The problem of time-independent energy supply cannot be solved, so everyone can speak freely to see if there is any way to solve it?"

Director Liu of the exoskeleton team asked everyone.

Dong Gang, who was wearing glasses, immediately suggested after hearing this: "I think it is possible to reduce some armor, so that the reduced weight can add more batteries."

"I don't think so!"

Jiang Hongtu, with a square face and short hair, objected: "Why are there different levels of bulletproof vests? Why are there only bulletproof vests? It's not because the weight of the highest grade bulletproof vests is too heavy. Wearing them not only affects the movement but also affects the carrying capacity of weapons and ammunition." , so it can only be reduced again and again!"

"Now that you finally have an exoskeleton but don't increase your armor, no matter how many weapons and ammunition you carry, you will still lose your combat effectiveness if you get shot. Isn't that like a 'deliverer' in the game? Anyone who plays games knows that Want third-level armor and third-level helmet!"

Although he was refuted, Dong Gang raised his glasses and said, "You are right, but Lao Jiang, can you listen to me first?"

"After our tests, 80% of the armor coverage area is actually exceeded. For example, the armor behind the legs is not necessary."

"First of all, a soldier's leg is not easy to be hit. After all, it is much smaller than the upper body, and it is not the primary target of attack. It is usually the most tightly protected by the bunker. Even kneeling and crawling shooting can hide them very well. It's one of the reasons why today's soldiers only have bulletproof vests and helmets...."

"So the armor of the exoskeleton is the same. The armor of the upper body must not be less, but the armor behind the legs can actually be subtracted, and even the armor on the front of the legs is the same."

Everyone thought about it carefully and found that what Dong Gang said was right.

The current body armor is just a bulletproof vest. Weight and flexibility are the main reasons, but the targets of the limbs are relatively small, and the lower limbs are mostly in the bunker. Because the upper limbs hold guns, the frontal silhouette of the forearm is about the size of a fist. In the battlefield The probability of being hit is relatively small.

The upper arm is more dangerous, because it is basically "connected" with the chest and abdomen. If the enemy is designed towards the chest, it is likely to be biased towards the upper arm.

However, as far as the limbs are concerned, even if they are hit, as long as they are treated in time, the possibility of the wounded surviving is still very high, and at most they will be disabled.

"I still disagree!"

Others feel good, but Jiang Hongtu's thoughts are very firm, he said: "Reducing the leg armor is actually not important, after all, the exoskeleton is definitely not equipped for the whole army, at most it is used in some special places, or Build a dedicated exoskeleton force."

"Those troops patrolling in extreme environments are fine without armor. For example, patrols above 5000 meters above sea level, they almost don't need armor, just use basic exoskeletons, but it's cold there, the efficiency of batteries is relatively low, and they The heating function is required, which also consumes more power, and even their special load requirements must be considered, and the power is still not enough in the end.”

"Not to mention those units that need heavy armor. Not only must there be less armor, but even more, and even the weight of the original battery will be squeezed."

"So this is not something that can be solved by reducing weight elsewhere. The only thing that can be solved is the battery problem with ultra-high energy density!"

Jiang Hongtu's words directly silenced the meeting room, because everyone just couldn't solve the essential problem, so they had to find a way from other aspects.

Even many people have thought of ways to reduce weight and increase the number of batteries.

However, Jiang Hongtu's straight-ball speech directly cut off all kinds of paths and brought the problem back to the original point.

"..."

No one noticed that Jiang Hongtu had already secretly looked at Li Future.

Of course, Li Future himself noticed it. His attention is very sharp now, and when he found that Jiang Hongtu was looking at him, he immediately understood.

'This is also a smart man. '

In fact, he has already planned to talk about graphene batteries. After all, people will know that graphene batteries are used in future 2 mobile phones at most in a few months. Even before that, mobile phones need to be reviewed by the state department before they can be sold. Will know sooner.

Thinking of this, Li Future knocked on the table to make everyone follow him.

He said: "Actually, I have a battery plan with ultra-high energy density... It's about graphene."

Everyone's eyes lit up immediately, looking at Li Future was like looking at a piece of graphene.

　Thanks Forever Yang for the reward~~
　　
　
(End of this chapter)