Hubsan ACE PRO User Manual page 26

Forward and Backward Vision Systems manually switched on in normal or film mode
(Choose to avoid obstacles or actively brake on X-Hubsan 2). Using the Forward and
Backward Vision Systems,the aircraft can actively brake when detecting obstacles in
front.The Forward and Backward Vision Systems work best with adequate lighting
and clearly marked or textured obstacles.
Vision Systems and Infrared Sensing System have limited ability to sense and avoid
obstacles, and the performance may be affected by the surrounding environment. Be
sure to maintain line of sight with the aircraft and pay attention to prompts in HUBSAN
ACE PRO APP takes no responsibility for any aircraft that is damaged or lost while using
Vision Systems.
Without GNSS, the maximum hovering height of the aircraft is 5m when using the vision
system in an open and flat field.The Vision System is only effective when the aircraft is
at an altitude of 0.5 to 50meters. Please note that the Vision Positioning function may
be affected if the aircraft's altitude is above the limit.
In X-Hubsan 2 you can set the Auxiliary Light (on, off or automatic). If Auto is selected,
the Auxiliary Light is automatically enabled when the environment light is too weak. Please
note that the Vision System cameras performance may be affected when the auxiliary
bottom light is enabled. Fly with caution if the CNSS signal is weak.
The Vision System may not function properly when the aircraft is flying over water or
snow-covered areas. Therefore, when the landing function is triggered, the aircraft may
not be able to actively avoid the water below. It is recommended that the user maintains
full control of the flight and makes reasonable judgements based on the surroundings, without
over-reliance on the visual system.
The Vision System cannot work properly over surfaces that DO NOT have clear pattern variations,
environments with insufficient or excessive light intensity. Operate the aircraft cautiousl
y when in any of the following situations：
1. Flying over monochrome surfaces （e.g.， pure black, pure white, pure blue, pure red）
2. Flying over highly reflective surfaces. (e.g.， water surfaces, ice surfaces, glass curtain
walls, smooth surfaces, etc.);
3. Flying over transparent surfaces. (e.g.， transparent glass etc.);
4. Flying in an area where the lighting changes frequently or drastically. (e.g., backlighting, etc.);
5. Flying over extremely dark or bright surfaces;
6. Flying over surfaces that strongly reflect or absorb infrared waves （e.g.， mirrors）;
7. Flying over moving surfaces or objects. （e.g.， above the flow of people, above the
grass blown by the wind, etc.);
8. Flying over surfaces without clear patterns or texture;
9. Flying over surfaces with repeating identical patterns or textures（e.g.， tiles with the
same design);
10. Flying over obstacles with small surface areas;
11. The safe working temperature of the visual system is 0-50 degrees， or it will influence the
stability of Vision System, Please use the Vision Assistance System within the safe temperature.
Keep the sensors clean at all times. Do not obstruct the Infrared Sensing System.
If the aircraft experiences a collision, camera calibration is required.
Do not fly on days that are rainy, smoggy, or if there is no clear sight. （less than 100 lux）.
Check the following every time before takeoff：
a. Ensure there are no stickers or any other obstructions over the glass of the Infrared Sen
sing and Vision System.
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