After spending several days in the laboratory, Wu Hao and Yang Fan have been researching the technology of the small high-speed drone of the 'Battlefield Sweeper'.

After unremitting efforts, Yang Fan and the technical R&D team have come up with a small high-speed quadcopter drone with a speed of more than 300 kilometers per hour.

What is the concept of 300 kilometers per hour, which means that this small quadrotor drone can fly a distance of five kilometers per minute and 83.333 meters per second.

This means that if our Combat Boot Squad comes into close contact with enemy troops. Releasing this kind of high-speed small attack drone within 100 meters, the opponent may only have a reaction distance of about one second, and it is simply too late to evade or intercept.

Even a nimble master reacts and finds cover in this second. This high-speed small attack drone is not a bullet with a fixed trajectory, it will quickly change direction according to the opponent's movement, so as to catch and choose the best angle to attack the target, basically will not give the enemy any chance to dodge.

What is the best angle, that is to say, the most reasonable angle. Theoretically, there is no dead angle at 540 degrees, and other places may be attacked except for the land you are stepping on.

A grenade grenade at the same distance will also work, but it will be far less lethal than this one.

If, at close proximity, the combat squad has enough of these high-speed small attack UAVs, then it is theoretically possible that the battle will be resolved in an instant.

High-speed small attack drones take off in a swarm, fly towards the enemy's position, find the enemy target through the reconnaissance system and then attack. The entire process can be handled by the 'Battlefield Sweeper System' itself, or it can be manually intervened. This can undoubtedly be said to change the operational rules and forms of close-quarters combat, urban street warfare, and complex terrain warfare in the future.

Of course, the idea is beautiful, but when it comes to real development, it is difficult. The speed of the drone has increased, and there is even room for improvement.

However, it has encountered very difficult problems in automatic cruise avoidance of obstacles and intelligent discovery and identification of targets.

The first question is how to solve this large number of sensors and devices installed on small drones that are only a little larger than an adult's palm and have a very limited payload.

It's like concentrating all the equipment and technology on the driverless car into such a small device, which is undoubtedly a huge problem for hardware integration.

In fact, their automatic cruise obstacle avoidance technology is very similar to driverless car technology, but there are many differences.

First of all, they are all unmanned and automatic navigation, not only to plan the route but also to avoid obstacles, and the speed is also very high.

But the speed of the car is still far from the speed of a small high-speed drone like theirs, and the car actually has a route, and only needs to move in a two-dimensional plane on the road, that is, in the left and right directions and acceleration and braking.

And the drone flies in the air, and its movement trajectory is three-dimensional. There are many different routes and obstacles, and they are far more complex than the roads.

And because of the high speed, it is necessary to quickly locate the detected obstacles and re-plan the route to change direction, all of which must be reacted in a thousandth of a second or even a ten-thousandth of a second. Whether it is for the hardware itself, including drones, flight control systems, sensors, etc., there are very strict requirements.

In addition, processing system software is also a very headache problem, how to quickly process these data in a very short time or process these data in real time, which is a very big problem for system research and development personnel, including Wu Hao.

Because this is a small, high-speed attack drone, its payload is actually very limited. In addition to the necessary on-board electronics, batteries are carried, as well as ammunition for the attack. The amount of charge is directly related to the power of your small high-speed attack drone.

Take the grenade, the most commonly used throwing weapon for infantry, as an example, the domestic 82-2 all-plastic handleless steel ball grenade, which weighs 260 grams. Its internal charge is about 60 grams, and the rest of the weight comes from 1,600 steel balls, plastic injection-molded projectiles, and detonating devices.

For the weight of 260 grams, you may not have any idea, which is about half a catty.

Although the drone does not need so many steel balls and all-plastic shells, because the fragments produced by the drone itself after the explosion are good fragments and have strong lethality. And in the future development process, the materials of the UAV fuselage, including the design, will get closer to this aspect.

On the one hand, it is to increase the power of fragments, and on the other hand, it is also to protect the technical secrets of this UAV.

But for such a small drone, every gram of weight on it is very valuable, and there is no abundance.

The speed of the drone is inversely proportional to its own weight, and the heavier the weight, the slower the speed of the drone. Therefore, in order to maintain a high speed, the weight of the drone must be strictly controlled within the allowable range.

This requires that the drone must be as light as possible, or as much as possible to increase the power of the drone. When there is not much improvement in power, its own weight becomes the best choice.

Under conditions that are as light as possible, the on-board equipment, batteries, and ammunition must be reduced as much as possible to meet its speed.

Not much to say about batteries and ammunition, it's a must. In order to ensure its power and range, or air endurance, it must be guaranteed at a certain weight.

Therefore, in addition to improving the power performance and increasing the load, the only thing that can be deducted is to start from the equipment on board.

Therefore, on such a small drone, the equipment that can be carried is actually very limited.

A small device means that its power is small, which will not only affect the drone's ability to process data, but also affect the drone's detection range of surrounding obstacles.

You know, within a limited weight, these sensors have to be small enough. This means that its power will be smaller, so that the distance it can detect will be greatly reduced.

The speed of the drone is very fast, and the detection distance is small, so the time left for the drone to deal with it is very limited, even only a few milliseconds or even a few microseconds.

This not only requires the sensor to have a fast response time, but also requires the system on board the drone to be able to process this information in the shortest possible time and control the drone to maneuver quickly to change direction.

The entire UAV must be perfectly integrated from hardware to system to sub-control, without the slightest hesitation.

Otherwise, for a drone that crosses obstacles at high speed, it is an infinite bomb crash.

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