The last thing you want is to fly high in the air and find that the drone is out of order. So whenever you fly, you should remember to check before flying, such as whether there are cracks in the fuselage, whether the picture transmission and signal are good, whether the compass is calibrated and so on.
Especially the calibration of compass and GPS is very important. At present, there are many intelligent drones hovering above.
2. Check whether the propeller is damaged.
Propeller is the most important part of flying and hovering. A little damage will lead to instability and out of control of drones, and they are really easy to damage. So be sure to carefully check the four propeller blades before each flight, and remember to unload the propeller after the flight to avoid crushing.
3. Check the battery before flying and charging.
Uavs generally use polymer or lithium batteries, which are extremely dense and can provide stable voltage for four motors at the same time. Be sure to store them carefully.
Therefore, it is necessary to check the battery voltage and the voltage of each battery before each takeoff. Pay attention to the charging time when charging after use. If you don't use it for a long time, remember to discharge, but avoid excessive discharge.
4. Never take it for granted
If you find any abnormality in the drone, don't risk flying before further maintenance. Therefore, we also suggest that for commercial aerial photography enthusiasts, we must buy multiple drones, so that once one of them has problems, other drones can still be used.
In addition, even if there is no problem with the drone, the weather conditions that are not suitable for flying, such as heavy wind and heavy rain and dense crowds, must focus on safety and do not take risks!
5. Keep the software up to date
Firmware updates of UAV manufacturers such as Kunming Jinying are very fast, which reflects the responsibility of the manufacturers. They constantly eliminate bugs, which may be the culprit of the bomber in the old version, so be sure to update the software at any time.
6. Don't let dust and fine sand enter the motor.
Many flying hands like to go to the seaside to take aerial photos of the sea. Because the motor is magnetic, fine metal particles contained in dust and fine sand may be sucked into the motor, which will affect the normal operation of the motor. More seriously, it is easier to cause the motor to stop running.
If you are really careless and particles get into the motor, you can try to use a vacuum cleaner, but if the motor still doesn't run smoothly, you may have to disassemble the motor or find a maintenance point.
7. Learn simple welding
Because the UAV vibrates during take-off, landing and even flight, it sometimes even causes some cables to loosen when landing. At the same time, some people will install larger antennas to enhance the remote control signal. These all require welding skills. It is suggested that flying hands can learn some basic welding skills according to online tutorials, which can save a lot of trouble.
8. Understand the working principle of each part of the drone.
Know yourself and know yourself, and you will win every battle. Understand the working principle of each part of the drone, so as to quickly investigate and prescribe the right medicine when there is a problem.
For example, four motors are connected to the controller, and the controller is connected to the flight control. The flight controller collects signals from the remote controller through the receiver, and decides to let the controller increase or decrease the motor speed according to the signals.
The power supply of the motor comes from the battery, and the voltage provided by the battery is determined by the controller.
Flight control also includes barometer, compass, GPS and other modules to ensure the smooth flight of the drone. Once the drone is unstable, it will adjust the speed of different motors to keep the drone stable. (UAV should be averaged)