How drones balance in the air
Imagine a drone balancing in the air like a person walking on a one-wood bridge, where the person needs to constantly adjust his or her footing and body posture to maintain balance to prevent falling off the bridge.
A drone balancing in the air is similar.
It relies on a sophisticated sensory system and brain to sense its surroundings and react quickly. First, the drone's sensory system includes sensors such as gyroscopes, accelerometers, and barometers. These sensors are like the eyes and ears of the drone; they sense changes in the drone's tilt angle, acceleration, and altitude. The gyroscope is like a spinning gyro that senses the speed and direction of the drone's rotation. The accelerometer is like a scale that senses gravity and measures the drone's acceleration. The barometer is like a barometer that measures altitude, helping the drone know how far it is from the ground.
The brain of the drone is the flight control system, FCS, which, based on the data collected by the sensors, calculates how the drone should adjust its motors, rotational speed, and rudder position to maintain stability. This process is like the human brain receiving information from the eyes and inner ear and directing the body to make corresponding movements to maintain balance.
In actual flight, the drone may encounter external disturbances such as wind, just as a person may encounter wind on a log bridge. The flight control system will monitor these disturbances in real time and quickly adjust the drone's flight attitude, just as a person would adjust his or her stride and body posture to counteract the wind, and if the drone starts to tilt, the control system will command the motors to generate more thrust to counteract the tilt, just as a person would use the power of his or her arms and legs to control the tilt. legs to balance the body.
Additionally the drone uses technology such as GPS and optical flow sensors to aid in positioning and hovering, GPS acts as a map to tell the drone where it is in space, and optical flow sensors help the drone to maintain its position in indoor environments where there is no GPS signal by analyzing changes in the texture of the ground, similar to how a person would look at their surroundings to determine their position in the absence of a map.
In short, keeping a drone balanced in the air is a complex process that involves real-time sensing, fast computation, and precise control. Through these high-tech senses and brains, drones are able to hover and fly stably in a variety of flight conditions.
