UAV terminology

1 , cool fly

Generally speaking, there is no accident during the flight and the flight is very smooth.

Ps: Small catalogues are flying every day, it should be the most anticipated by each model friend~

2 , fixed nails

Mainly refers to the drone fixed point, stable like nails, indicating that GPS performance is good.

Ps: Under normal circumstances, GPS has high precision, good signal, good flight environment and no wind.

3 , one key release

Generally refers to the drone flying when a key returns, the reason for the release may be that the magnetic compass is disturbed or the GPS loses the signal.

Ps: According to the feedback from the model friends, the one-click release is higher in the flight control of a big brand~

4 , take control home

After the release of a button, the drone flies, and the machine is found to be fruitless, but can only go home with the remote control.

Ps: According to model friends, this is a terrible thing than "fried chicken." . .

5 , fried chicken

The fried chicken is a bomber, and the machine is a drone. It means that the drone has landed abnormally for various reasons. Simply put, it is broken. There are many reasons for fried chicken. It may be due to improper operation of the flying hand, or it may be the reason for flight control.

6 , lost stars

Refers to GPS loss of signal, generally in the GPS mode, no one is out of control.

Ps: Flying in GPS mode, the star is a time bomb.

7 , jelly

The aerial picture vibrates due to the vibration of the body or the pan/tilt during aerial photography, making the picture look like jelly vibration.

Ps: Solve the problem of jelly, starting from the paddle, motor, pan/tilt, etc., such as static balance on the slurry (splicing of transparent plastic); using a motor with better dynamic balance; motor and paddle and fuselage, head and machine The body should be connected tightly; use a shock-absorbing pan/tilt to reduce vibration through the shock-absorbing ball.

8 , shooting paddle

Generally speaking, the propeller is damaged or disconnected from the motor during flight. Most of the reasons are: the paddle is of poor quality; the paddle is not fixed; or the flight environment is too bad.

Ps: fixed, use the paddle, nothing to go to the harsh environment.

9 , high

When the vehicle is hovering in the GPS mode, the throttle is not moved but the drone suddenly rises at a rapid speed.

Ps: Immediately close the throttle, if not controlled, immediately cut the self-stabilizing mode.

10 , air parking

Refers to the motor stops rotating when the drone is flying in the air.

Ps: There are many reasons for this, such as wiring problems (dath welding), flight control procedures, battery problems, etc.

1 , flight control

The brain known as the drone, the flight control system of the drone, mainly consists of a gyroscope (flight attitude perception), an accelerometer, a geomagnetic induction, a GPS module (optional), and a control circuit. The main function is to automatically maintain the normal flight attitude of the aircraft.

If there is no flight control, there is no auxiliary stabilization, there is no limit to the angle of flight, the requirements for flying hands are very high, and it is not convenient to do over-the-horizon flight.

2 , channel

The most common term for remote control is to indicate several signal modes. One channel corresponds to one signal. This signal allows the aircraft to make corresponding actions. For example, the remote control can only control four axes to fly up and down, then it is one channel. Using the most common four-axis drones as an example, the number of action paths that the four axes need to control during the control process are: up and down, left and right, front and back, and rotation, so it is better to have more than 4 channels of remote control.

3 , 2s , 3s , 4s battery

2s, 3s, 4s What do you mean? Represents the number of lithium batteries, the standard voltage of the lithium battery is 3.7v, then the 2s battery means that there are 2 3.7v batteries in it, the voltage is 7.4v, and so on.

4 , the model of the paddle

Paddles are available in different models, such as 1045, 7040, which are 4 digits. The first 2 digits represent the diameter of the paddle (unit: 1 inch = 254 mm). The rear 2 positions are the angle of the paddle.

5 , ESC

The function of the ESC is to convert the control signal of the flight control into the magnitude of the current to control the speed of the motor. Because the current of the motor is very large, usually, when each motor works normally, there is an average current of about 3a. If there is no ESC, the flight control board can not withstand such a large current, and the ESC is still in the four axes. Acts as a voltage variator.

6 , motor

The motor is divided into a brush motor and a brushless motor. It is often said that the 2212 motor, the 2018 motor, etc., no matter what brand of motor, specifically corresponding to 4 such figures, the first 2 are the diameter of the motor rotor, The second two digits are the height of the rotor of the motor. Note that it is not a shell.

7 , the match of the motor and the propeller

The larger the propeller, the greater the lift, but the greater the force required to drive; the higher the propeller speed, the greater the lift; the smaller the kv of the motor, the greater the rotational force; in summary, the large propeller needs to be used. For low-kv motors, small propellers require high-kv motors (because the speed is needed to compensate for the lack of lift). If the high-kv has large paddles and the power is not enough, then it is very difficult. Actually, it is still vulgar, and the motor and ESC are easy to burn. . If the low kv has a small paddle, there is no problem at all, but the lift is not enough, which may result in the inability to take off.

8. What is the meaning of c behind the battery ?

Representing the battery discharge capacity, this is the most important difference between ordinary lithium batteries and power lithium batteries. Power lithium batteries require a large current discharge. This discharge capacity is expressed by C. If the capacity is 10000mah battery, the standard is 5c, then use 5x10A, it is concluded that the battery can discharge at a current intensity of 50A.