Drone , a 21st century "elf".
The four-rotor aircraft is one of the top ten technology products selected by Time magazine in 2014. It is the matchmaker in Wang Feng’s “headline†event.
The current quadrotor looks like an infinite glory, but it has also been frustrated. In the past, the four-rotor aircraft was light and weak, could not walk long distances, and could not afford heavy objects. Compared to the family of aircraft that took the "tough guy" wind, the quadrotor was once white-eyed.
From the beginning of recognizing himself, the fate of the quadrotor appeared to turn.
Figure 1 "Time" 2014 top ten innovative tools (above) and Wang Feng proposed (below)
know yourself
In order to recognize yourself, the quadrotor is equipped with two powerful eyes: one can only see his "location", know whether he is in Huangshan or Taishan, this is the built-in GPS positioning system; the other can only see Clearing your own "attitude" means knowing whether you are "sitting," "lying," or "inverted." This is the gyroscope. These two eyes are also used in conjunction with the "accelerometer" to more accurately know their posture and position, as well as changes in posture and position.
Figure 2. Four-rotor "both eyes": GPS and gyroscope
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