Drone basic theory knowledge study Drone Buying Guide for Total Beginners 2021 how pick drone DJI скачать в хорошем качестве

Drone basic theory knowledge study Drone Buying Guide for Total Beginners 2021 how pick drone DJI

I use the drone to automatically shoot the clip just now, automatic clips of drones in the travel can shoot more angles of the video, as a way to expand your horizons and enrich your circle of friends, then this video we talk about the drone purchase guide, drones can be broadly divided into fixed-wing , helicopter ,multi-rotor, because of the simple structure, low cost, and more flexible flight, more stable, therefore multi-rotor is also the most widely used in aerial drones, then this video we mainly talk about multi-rotor. multi-rotor drones with a takeoff weight of 250 grams or less does not need to be registered in China, this drone is a bit like a bicycle, he does not need a driver's license, but also does not need to be licensed, but still to comply with traffic rules. Empty weight in 250 grams to 4000 grams, takeoff weight within 7000 grams, here the drone is a bit like an electric bicycle, he does not need to take a driver's license, but to be licensed, you need to go to the Civil Aviation Bureau's website to register and report, and then He will give you a two-dimensional code, you have to print it out and paste it on the drone, like a license for your aircraft, if your aircraft is sold or lost, you should timely cancel the drone information. the empty weight of more than 4000 grams, or takeoff weight greater than 7000 grams, this type of drone is a bit like a motor vehicle, you have to get a license and a driver's license, this drone You need to have a special drone pilot's license to fly, we use them to do engineering mapping or agricultural plant protection, we often buy more of the first two types which is lighter, and do not need a drone pilot's license aircraft, we bought four different prices of drones to show you the different prices. What are thr difference between drones? First of all, the flight aircraft can fly steadily and return safely, the most important thing is to rely on the flight control system flight control, in fact, it is easy to understand, you can imagine why we can stand stable, why walking and running will not fall down? This is because our cerebellum will control the muscles of various parts of the body to tighten or relax, so as to allow the body to achieve a balance, the same for drones, the propellers of the drone is its muscles, is its four flight control, is his brain, he has to constantly adjust the power of each propeller, so that the drone can accurately make lifting, hovering, steering, flying and other various operations, to achieve Accurate control, only rely on the feeling is not possible, believe it or not, you can try, close your eyes to go straight, then you probably can not go straight, so the drone also rely on GPS, barometer, compass, optical flow, sensors and other kinds of eyes to feel the environment, and constantly adjust each propeller, in order to maintain accurate in different environments. The flight, this is the role of flight control, different price points, different brands of drones flight control level is not the same, this is more than 100 yuan of drones, GPS, compass and other kinds of sensors, it is not, like a baby with its eyes closed, after takeoff is not under your control, stumbling, even stand unstable, but when there is a little breeze in the air, then it is uncontrolled with the wind, this drone is basically where it floats, you run over to pick it up, as a toy, the drone I do not think I am playing with it, but it is playing with me, I think this drone even is not qualified as a toy, it is too dangerous, almost no control, in case the wind blows, the consequences are still quite serious, drones whose price are above 1000 is more like a Children, except that he is more naughty, like to move around when standing there, no self-control, guess because it does not have optical flow sensor, IMU compass, etc., these eyes can sense the surrounding environment, so that he does not have the ability to do accurate hovering, but it is still very obedient on the whole. GPS, so he also knows the way, you let him out of a not very far door, he can also come back by himself, playability is still very high, but this no self-control aircraft is also a certain degree of danger, such as low altitude hovering, if you want to shoot a piece of material, and this aircraft hovering in the air is not so stable, there will be safety risks, it is like a naughty child, you have to keep an eye on him all the time let people It is not that reassuring, while the DA JIANG DRONE Mini II of 2900 yuan, this one is smaller and lighter, but its flight control is more like a mature and stable adult as reassuring, even in a windy environment, he can still be accurately positioned by compass, GPS, optical flow, sensors and other eyes, constantly adjusting the power on the propellers according to the changes in the environment, and can do stable in different environments. Hovering, at the same time, DA JIANG DRONE's flight control ..