The working procedure of a drone may appear simple to most of you but the device is actually carrying a complex technology inside. Before we discuss the concept of drones' working you must know the fact that differentiate between drones and its ancestors- helicopters. The former one can fly independently whereas later needs pilot for directions.
Actually it is a specially designed multi propeller system inside a drone that makes this device highly independent and also assists in reduction of failures. One important thing to note about this multi propeller system is that even if any motor inside this device stops working; it will keep on flying as it gets support from propellers that are working in group. Drones that possess large number of motors inside are able to gain more control over their elevation and hence can carry more loads during flight. These propellers get their power from a dedicated source and most of these devices contain removable batteries so that it can stay in air for long run. The flight time can be extended with use of powerful batteries in design.
A Closer Look at What's Under the Cover
So what exactly are all of those parts inside the drone? How do they work together to keep the drone flying?
A gyroscope measures the rate of rotation and helps keep the drone balanced. Gyroscopes are devices that consist of a mounted wheel that spins on an axis that is free to move in any direction. They're used to provide stability or maintain a reference direction.
A drone also has four high-torque motors powering each of the four propellers. These motors are usually brushless.
Motion sensors are an important piece of the drone puzzle. Altimeters communicate with the drone to let it know its altitude. These chips help the drone make necessary adjustments to keep it aloft.
A computer positioning system helps them maneuver. A programmer inputs the algorithms for positioning and the speed the rotors need to be moving; cameras track the drone by reflecting light off of its markers. This gives the computer an idea of where the drone is located. It's capable of pinpointing a drone's position to a millimeter.
As a result, the drone can flawlessly perform acrobatic movements and launch through tight spaces without error. If the positioning system is applied to several drones simultaneously, each drone can be set to a specific position and together, the drones can create a formation. The programmer must designate a center point for the drones to move around, so that individual drones move as a single unit and do not deviate from formation.
Drones typically use Lithium Polymer, or LiPo batteries. LiPo batteries are the power choice most favored by drone manufacturers since they are light weight and carry a maximized charge capacity and power.
For example, all the Autel Robotics EVO drones are built in LiPo batteries.