
U.S. Department of Transportation
December 31, 2014
Page Eleven
11
sd-654307
Figure 9 – DJI S1000
B. The DJI A2 Flight Control System
The DJI S1000 will be used in conjunction with the A2 multi-rotor stabilization flight control
system that provides self-leveling and altitude holding. The A2 is a complete flight control
system for various multi-rotor platforms, including the S1000. The A2 provides precise
positioning and flight control through its high performance antenna and low noise anti-
interference front-end RF design. Notable features of the A2 Flight Control System include:
Auto Return-To Home/One Key Go-Home: If the S1000 disconnects from the A2
during flight, the system’s failsafe protection will enable the S1000 to return to home
and land automatically. The operator can also setup a One Key Go Home function to
activate this feature manually.
Multi-Rotor One-Motor Fail Protection: When the S1000 is in attitude or GPS
attitude mode, and one of the motors stops, the aircraft will retain good attitude and
rotate around the frame arm with the stopped motor. In this condition, the S1000 is
still under control and returns home safely, highly reducing the risk of a crash.
Set Speed Feature: Ability to lock the S1000 craft into its current horizontal speed.
Point of Interest: Users can record the current position of the S1000 as a point of
interest by a preset switch on the remote control. The S1000 can achieve a circling
flight around the point of interest with the nose pointing at the POI in an area of 5
meters to 500 meters radius, when the roll command is given. This function is easy to
set and simple to operate, it is suitable for all-round shooting of a fixed scenic spot.
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