Military Technology

After staying in the laboratory for several days, Wu Hao and Yang Fan have been conducting research and research on the technology of the "Battle Sweeper" small high-speed UAV.

After unremitting efforts in the past, Yang Fan and the technical research and development team have produced a small high-speed quadrotor drone with a speed of over 300 kilometers per hour.

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

That means, if our combat boots team is in close contact with enemy troops. If such a high-speed small attack drone is released within 100 meters, the opponent may only have a reaction distance of about one second, and it is too late to evade or intercept.

Even an agile expert can react in this second and find a cover. This high-speed small attack drone is not a bullet with a fixed ballistic trajectory. It will quickly change its direction according to the opponent's movement, so as to catch and select the best angle to attack the target, basically not giving the enemy any chance to dodge.

What is the best angle, that is to say the most reasonable angle. In theory, five hundred and forty degrees have no dead ends. Except for the ground they are stepping on, other places may strike.

An equal range grenade grenade would also work, but it's nowhere near as deadly.

If the combat team has enough of these high-speed small attack drones at close range, it is theoretically likely that the fight will be resolved in a flash.

The high-speed small attack drones take off in groups, fly to the enemy position, find the enemy target through the reconnaissance system and then attack. The whole process can be handled by the 'Battle Sweeper System' itself, or manual intervention. This can undoubtedly be said to change the combat rules and combat forms of close combat, urban street combat, and complex terrain combat in the future.

Of course, the idea is beautiful, but the actual development is difficult. The speed of drones has increased, and there is even room for improvement.

However, it has encountered very difficult problems in the automatic cruise to avoid obstacles and in the intelligent discovery and recognition of targets.

The first is how to install this large number of sensors and devices on small drones that are only a little larger than an adult slap and have a very limited payload.

This is 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 technology of automatic cruise avoiding obstacles is very similar to that of driverless cars, but there are many differences.

First of all, it is unmanned and autonomous, not only to plan the route but also to avoid obstacles, and the speed is also very high.

However, the speed of the car is still far from the speed of their small high-speed drone, and the car actually has a route, and only needs to perform a two-dimensional plane movement on the road, that is, the left and right directions and acceleration and braking.

While the drone flies in the air, its trajectory is three-dimensional. There are various routes and various obstacles encountered, which are far more complicated than on the road.

And because of the fast speed, it is necessary to quickly locate the detected obstacles and re-plan the route to change the direction, all of which must be responded within a thousandth of a second or even a 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 difficult problem. How to process these data quickly or in real time in a very short period of time is a very big problem for system developers, including Wu Hao.

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

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

For the weight of 260 grams, maybe everyone has no concept, and it is about half a catty.

Although there is no need for so many steel balls and all-plastic casings on the drone, the fragments generated by the drone itself after the explosion are good fragments and have strong lethality. And in the future development process, the materials and design of the UAV fuselage will be closer to this aspect.

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

But for such a small drone, every gram of weight on it is precious and not rich.

The speed of the drone is inversely proportional to its own weight. 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 the power of the drone must be increased as much as possible. When there is not much improvement in power, its own weight becomes the best choice.

In the most likely light conditions, the airborne equipment, batteries, including ammunition, must be reduced as much as possible to meet its speed.

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

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

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

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

Know that these sensors must be made small enough within the limited weight. 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 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 that the system carried by the UAV can process the information in the shortest time and control the UAV to quickly maneuver and change direction.

The entire drone must be perfectly integrated from hardware to system to sub-control, without any hesitation.

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

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