Autel Robotics EVO II Dual 640T Enterprise Bundle V3 Drone with Thermal Imaging - Manual (Page 23)

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the aircraft.
Barometer
Measure the atmospheric pressure and determine the altitude
of the aircraft.
Ultrasonic sensor Measure the distance between the aircraft and the ground.
Binocular vision
sensing system Support omnidirectional binocular vision (front, rear, left, right,
up, and down).
1. Flight Mode
The aircraft can automatically switch between three flight modes based on the
availability of GPS signals and flight conditions.
Flight Mode
Flight Mode Description
GPS mode
The aircraft will activate the GPS mode once it detects a
sufficient GNSS signal. In GPS mode, with the assistance of
the front and rear vision systems, the aircraft can locate and
avoid obstacles. GPS provides stable and smooth flight control
and supports features such as return to home and failsafe.
ATTI mode
The aircraft automatically changes to ATTI mode when the
GPS signal is weak, and the vision systems are unavailable due
to poor light conditions. The obstacle avoidance feature is
disabled, and the aircraft controls the altitude through a
barometer.
Starpoint mode
In this mode, the aircraft uses vision positioning, which is highly
dependent on the environment and altitude. The surrounding
environment must have sufficient light, and the ground texture
must be clear. In addition, the aircraft must fly at an altitude
that can be sensed by the vision systems. Otherwise, the
aircraft enters the ATTI mode.