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2021 DJI All Rights Reserved.
AGRAS T30
User Manual
The amount of selectable return points is related to the position of the aircraft. Select
according to the app display.
Make sure that the aircraft has completely avoided the obstacle before resuming operation.
In the event of an emergency, make sure that the aircraft is operating normally and y the
aircraft manually to a safe area to resume operation.
Repeat the instructions above to exit and resume operation in the event of an emergency when
returning to the route, such as whenever obstacle avoidance is required.
System Data Protection
In Route or A-B Route operation mode, the System Data Protection feature enables the aircraft to retain
vital system data such as operation progress and breakpoints after the aircraft is powered off to replace
a battery or rell the spray tank. Follow the instructions in Operation Resumption to resume the operation
after restarting the aircraft.
During Route operations, in situations such as when the app crashes or the remote controller
disconnects from the aircraft, the breakpoint will be recorded by the flight controller and recovered
automatically in the app once the aircraft is reconnected. If recovery is not performed automatically,
users can perform the operation manually. Go to Operation View, select
, , then Advanced Settings,
and tap Continue Unnished Task. Recall the operation in the Executing tag in the operation list.
Spherical Radar System
Prole
The Spherical Perception Radar System, consisting of the Omnidirectional Digital Radar and Upward
Radar, works during day and night and is unaffected by light or dust. In an optimal operating
environment, the omnidirectional digital radar can predict the distance between the aircraft and the
vegetation or other surfaces in forward, backward, and downward directions to y at a constant distance
to ensure even spraying and terrain following capability. The radar system can detect obstacles in all
horizontal directions from 30 m away and from 15 m above in the upward direction. It effectively senses
the environment and helps to circumvent obstacles in both Route and A-B Route operation modes. In
addition, the radar module limits the descent speed of the aircraft according to the distance between the
aircraft and ground in order to provide a smooth landing.
The altitude stabilization and obstacle avoidance functions of the radar module are enabled by default
and can be disabled in the app. When enabled, the aircraft ies above the vegetation at a constant
spraying distance in Route, A-B Route, and Manual Plus operation modes. In Manual operation mode,
the radar module can measure the spraying distance above the vegetation or other surfaces, but the
aircraft is not able to y at a constant spraying distance. Obstacle avoidance can be used in any mode.
Auto Obstacle Avoidance is disabled by default. Users can enable it in the app.
Detection Range
The obstacle detection distance of the omnidirectional digital radar is 1.5-30 m while the upward radar
has a detection distance of 1.5-15 m. The FOV of the system is shown in the gure below. The aircraft
cannot sense obstacles that are not within the detection range. For the four gray areas in the gure, the
detection performance of the radar module may be reduced due to the obstruction of the frame arms
and landing gear. Fly with caution.
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