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Just a few days ago, the DJI drone completed an extreme challenge on Mount Everest, successfully crossing the 6,000-meter altitude limit and flying over Mount Everest, which is said to have reached an altitude of 9,232.68 meters, about 400 meters higher than Mount Everest.
Those who don't know may think that this is nothing to be proud of, but you must know that even Americans are envious and jealous of such capabilities as drones. First of all, let's take a look at the difficulties and challenges of drone flying over Mount Everest?
What's so hard about drones flying over Mount Everest?
Many people know that Mount Everest is the highest peak in the world at 8,848 meters above sea level. Since people discovered the existence of Mount Everest, many people have wanted to challenge Mount Everest, but as the world's highest peak, it is not easy to conquer Mount Everest.
Because Mount Everest is steep and high, it is also accompanied by a lot of dangerous storms, blizzards, low temperatures, and avalanches, which can kill people when encountering them on the mountain. Moreover, the altitude here is high, there is little air, climbing Mount Everest is a very physically demanding thing, and climbing in such an environment can easily cause hypoxia and altitude sickness.
Many people have always wanted to conquer Mount Everest, some people succeeded, some people failed, and some people left their bodies on Mount Everest and directly gave their lives here.
But then again, after all, people are mortal beings, and many times it is reasonable to not be able to withstand the torture of nature, but no matter how difficult it is to climb the mountain, it should not be difficult to release a drone. For a long time, some people have been curious, can a human helicopter fly up to a height like Mount Everest? While it is true that it is possible to fly to this height, few people dare to try it.
First of all, considering the flight principle of the helicopter, we all know that the helicopter relies on the rotation of the propeller to have enough lift to lift the aircraft, and this process has a lot to do with the density of the atmosphere. If the density of the atmosphere is high, you will get enough lift, and if the density of the atmosphere is low, the lift will decrease. According to the data, the density of the atmosphere on Mount Everest is about a quarter of that at sea level, and it is conceivable that the lift of the helicopter will drop significantly at this altitude.
In addition, our current helicopters are basically driven by burning oil, burning oil requires oxygen, at the height of Mount Everest, the air pressure is low, the oxygen is thin, the engine can not get enough oxygen to burn, this kind of thing on the ground is nothing more than not to start, if in the sky, the plane has the risk of falling. So no one dares to try to fly a helicopter across Mount Everest, even if some helicopters can fly at an altitude of more than 10,000 meters, it is a special helicopter, which is a small exception.
Since helicopters can't fly over Mount Everest, why can't drones?
Why can DJI drones fly over Mount Everest?
UAVs and helicopters are both rotary-wing aircraft, and when flying, they will be affected by the density of the atmosphere, but the rotor of the UAV is much smaller than that of the helicopter, and the rotation speed is not as good as that of the helicopter, so the difficulty of the UAV flying on Mount Everest is actually greater than that of the helicopter.
So the fact that the drone can fly over Mount Everest shows that the propeller of the DJI drone, whether in terms of structure or speed, is quite powerful, otherwise it will not get enough lift. However, it should be noted that the drone is not only able to fly in this process, but also faces the problem of external environmental interference.
One of the biggest problems with drone flights over Mount Everest is air turbulence. On Mount Everest, strong winds can reach speeds of up to 15 meters per second, which is a deadly challenge for climbers, not to mention drones, which rely on aerodynamic aircraft. If you want the drone to be able to maintain normal flight in complex air turbulence, you need to have a strong and stable flight control program, that is, to make the drone have the ability to resist the interference of the external environment.
In fact, drones have another advantage over helicopters, that is, drones are powered by batteries and do not need fuel engines to drive, which means that the power source of drones will not be affected by air content.
However, this statement is also a bit inappropriate, after all, the battery in the normal environment, and in the height of Mount Everest is completely different from the two things, low temperature and low air pressure will actually affect the normal operation of the battery, just like the southerners arrived in Harbin, found that the mobile phone power consumption is very fast, are a reason.
The temperature of Mount Everest can reach minus 15 degrees, in such an extreme environment, if the battery quality is not good, the drone can still be scrapped at high altitude, but DJI drones do not have such a situation, which is enough to show that their battery technology is also very reliable.
At this point, some careful people will think of a question, DJI drones need a communication connection to operate, does Mount Everest have a signal?
There was indeed no signal on Mount Everest before, and many people who went to climb the mountain had to go crazy for this problem, but in 2020, China Mobile and Huawei jointly built a 5G signal base station on Mount Everest, and it is said that even the peak has signal coverage, so under such a reliance, DJI drones can gallop at will without being affected.
Some people may feel that this era is developing too fast, and it should be reasonable to be able to do such a technology, and there is nothing to be happy about. So whether you are strong or not, you have to compare it with foreign countries, and today when the whole world supports DJI drones, what is the situation of foreign drones? Can't their drones fly over Mount Everest?
Can foreign drones fly over Mount Everest?
In fact, there are also drones abroad, for example, there are many drone companies in the United States, and in terms of the development of this technology, they started much earlier than China, but why since the emergence of DJI, no one cares about drones in the United States, it is unknown.
Two years ago, the global network investigated the United States UAV, and found that although there are indeed many UAV companies in the United States, their UAV production and manufacturing, in the end, they have to find Chinese companies to OEM, from the production of circuit boards, to the manufacture of parts, almost the entire production line of UAVs is based on Shenzhen or Dongguan factory processing. As for the reason behind it, they said that the main reason is that it is cheaper to make these accessories in China, such as a 6,000 yuan drone like DJI, if it is made in the United States, it will cost tens of thousands of dollars.
The higher the productivity, the lower the production cost, in fact, from the perspective of manufacturing costs, you can see the gap between American manufacturing technology and China.
However, it is said that the United States not only relies on Chinese companies for the production of drones, but also cannot compete with China in terms of technology. According to industry insiders, if they want to upgrade and iterate on UAV technology, if they want to improve the product, the R&D system must be in China.
In general, the development and production of UAVs need a huge industrial chain, it just so happens that China now has these industrial chains, these are of course not innate, as early as 2015 when China's civilian UAVs were just emerging, China's UAVs also rely heavily on imported parts, and now, foreign countries have taken the initiative to rely on us, which is enough to show that China's efforts over the years have been successful.
According to the survey, although foreign countries can produce drones by relying on Chinese factories, the drones they design are not easy to use. For example, the maximum communication distance of their drones is 6.2 kilometers, while DJI's can reach 10 kilometers, and it can also transmit high-definition maps without being affected.
According to a retired U.S. drone operator, the killings caused by the use of America's own drones were too serious, and he roughly calculated the manslaughter records, which were probably more than 1,600 people, and many of them were children, which made the operator suffer from war trauma syndrome. So the US military prefers to use Chinese drones.
But even so, U.S. officials still dare to sanction Chinese drone companies, especially DJI. But what they didn't expect was that no matter how they sanctioned, DJI was still getting stronger day by day, not only did the drone do well, but even the sales market also occupied a large share in the United States.
It can be seen that with the existing drone technology in the United States, it is very difficult to fly over Mount Everest like a DJI drone.
This time the DJI drone flying over Mount Everest is a model used for cargo transportation, it can carry 30 pounds of materials to fly over Mount Everest, it takes only 12 minutes, and there is still 43% of the power left after the delivery of materials, which is already a top existence in the field of drones, and it is another heavy blow to the European and American countries that blockade DJI.
In fact, in recent years, with the development of drone technology, drone delivery of goods has become a hot topic, because in reality, there are many places that are inaccessible to transport vehicles.
Although DJI carried 30 kilograms of materials in this test over Mount Everest, in fact, some of their current drone products can already achieve a load of 150 kilograms, and are widely used in the construction industry and agriculture, and have also been affirmed by the market in actual use.
However, these use scenarios are relatively normal, and an extreme environment like Mount Everest is the first attempt. The success of this attempt not only means that DJI's technology has reached a higher level, but also that the market demand for drone transportation in extreme environments will bring a lot of changes.
This kind of impact is not only reflected in the civilian field, but also in the military field, DJI drones can do this, can European and American countries not panic?