Description
DJI Phantom 4 Pro/Adv/V2.0 Downward Vision Positioning Module ...
The DJI Phantom 4 Downward Vision Module is a crucial sensor array for indoor flight and low-altitude positioning, using downward-facing cameras and ultrasonic sensors to maintain stability where GPS fails, typically working best between 0.5m to 11m altitude, and is a replaceable part for repairing damaged or malfunctioning drones.
This video demonstrates how to calibrate the downward vision system on a Phantom 4:
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DJI Tutorials
YouTube • 4 Apr 2017
Function & Importance
Vision Positioning System (VPS): The module provides visual data for the drone's Vision Positioning System, allowing it to hover and move accurately indoors or near the ground.
GPS Alternative: It's essential for flights without GPS signals, using the ground's texture and distance sensors for stability.
Watch this video to see what a downward vision sensor calibration error looks