mini I20E User Guide
Usage Requirements of Optical Flow Positioning
Please note, Optical Flow Positioning works when flying at altitude below 9.8ft.
Measurement accuracy of the Optical Flow System (OFS) is easily affected by light intensity
and texture of the surface. If the OPS fails the drone will automatically switch to fixed altitude
mode. Below is a list of conditions that can cause failure to the OFS:
1. Flying fast at low altitude (below 16ft).
2. Flying over monochrome surfaces such as pure black, pure white, pure red etc.
3. Flying over surfaces with strong reflections.
4. Flying over water or transparent surfaces.
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