dji ZENMUSE L2 - Page 21

ZENMUSE L2
User Manual
©
2023 DJI All Rights Reserved.
19
Altitude Mode Relative to Takeoff Point (ALT): the altitude of the aircraft relative to the
takeo point. It is recommended to use this option for a at mapping area
with no undulations and set the altitude to 150 m.
ASL (EGM96): the altitude of the aircraft relative to the EGM96 geoid.
Altitude Relative to Ground (ALG): the altitude of the aircraft relative to the
ground below. Set the altitude mode to AGL to enable the terrain follow
function and it is recommended to set the Terrain Follow Height to 150 m.
Before using the terrain follow function, please import the DSM or DEM le
including the altitude information.
Flight Route
Altitude
The altitude of the ight route of a ight task.
Elevation
Optimization
It is recommended to enable this option for orthophoto operation. When
enabled, the aircraft will y to the center of the mapping area to collect a set
of oblique images to optimize the elevation accuracy.
Flight Route
Speed
The operating speed of the aircraft after entering the ight route. This speed
is related to the forward overlap ratio.
Course Angle The route direction is parallel to the longer side of the mapping area by
default.
Completion
Action
It is recommended to set the completion action as Return to Home.
Side Overlap
Ratio
Side overlap ratio is the overlap ratio of two pictures taken on two parallel
paths.
The default laser side overlap ratio is 20%. If the mapping area has large
uctuations or higher point cloud density is required, it is recommended to
increase the overlap ratio.
Forward
Overlap Ratio
Forward overlap ratio is the overlap ratio of two pictures captured
consecutively in the same heading along the ight path.
It is recommended to set the forward overlap ratio (Visible) as 80% to
capture orthophotos during point cloud data recording.
Margin The distance of the flight area beyond the mapping area. The purpose of
setting the margin is to ensure the edge accuracy of the mapping area.
Photo Mode The default selection is Timed Interval Shot.
Safe Takeo
Altitude
After taking o, the aircraft will y up to the safe takeo altitude (relative to
the takeo point), then y to the start point of the ight route.
* If the aircraft starts a ight task during ight, the safe takeo altitude will not take
eect.
Takeo Speed The ight speed after reaching the ight route altitude and before entering
the flight route. It is recommended to set it to the maximum to improve
operational eciency.