Visual Positioning Function - Autel Robotics Alpha User Manual

14 Chapter 2 Flight Safety
Warning
 The obstacle avoidance distance of the millimeter-wave radar sensing system varies with
the obstacle's ability to reflect electromagnetic waves and its surface size.
 The gray area represents the blind spot of a millimeter-wave radar, where the radar cannot
detect obstacles.
 Observation Range of Radar and Visual Sensing Systems
With the integration of radar and visual sensing systems, the aircraft achieves 720°
omnidirectional obstacle avoidance and supports nighttime obstacle avoidance.
Note
 If the aircraft uses a 60 GHz bottom millimeter-wave radar, it supports nighttime obstacle
avoidance by millimeter-wave radars.
 If the aircraft uses a 24 GHz bottom millimeter-wave radar, the front, rear, left, right and
top millimeter-wave radars are disabled by default. The aircraft does not support nighttime
obstacle avoidance by millimeter-wave radars and only supports visual obstacle avoidance
in good lighting conditions. Additionally, it uses the bottom millimeter-wave radar only for
assisted landing.

Visual Positioning Function

The aircraft supports the visual positioning function even without GNSS signals. It means that
the aircraft can provide flight positioning capability in case of poor or no GNSS signal to ensure
flight safety.
When there is GNSS positioning information, the visual positioning function supplements the
aircraft's position information, enhancing positioning accuracy.
When there is no GNSS signal and the environment and height cannot meet the visual sensing
system, that is, when there is no GNSS signal and visual positioning failure at the same time, the
ATTI mode will be activated.
Observation Range of Millimeter-wave Radars