InstantEye Mk-3 GEN4-D1 sUAS Technical Manual
Revision M1.2
August 14, 2019
COPYRIGHT ©2018 InstantEye Robotics, a division of Physical Sciences Inc.
ITAR or EXPORT CONTROLLED
Page 32
using a joystick or by pressing the
NAV
button to disable
NAV
mode. The user should only
enable
HOME
mode when the vehicle is at least 50 feet higher than the surrounding
obstacles. The vehicle is not aware of obstacles and will not avoid obstacles on the way
home that may be in the way. Due to discrepancies between the vehicle GPS and the
GCS GPS, the home location may be in error by as much as 35 meters in poor GPS
conditions and as little as 5 meters in good GPS conditions.
Note:
The
HOME
mode should only be enabled when all systems are operating normally.
It should not be used as an emergency procedure.
3.5.5.4. Landing Mode
Landing mode activates the vertical position controller and commands the aircraft to
slowly descend. Landing mode is automatically initiated when there is a loss of
communication and the aircraft has returned to its home location without regaining
communication with the GCS. This mode can also be entered while in indoor mode. While
in indoor mode, pressing the
HOME
button will initiate the landing mode. Loss of
communications in indoor mode will automatically initiate the landing sequence. Activate
landing mode by pressing and holding the
HOME
button.
3.5.5.5. Lost Communications Mode
Lost communication mode is enabled when the aircraft fails to receive commands from
the GCS. This mode changes depending on the state of indoor mode. While not in indoor
mode, both the translational position controller and the vertical position controller are
activated, allowing the aircraft to climb to a safe altitude and return to the home location.
If the aircraft regains the C2 link in the process of returning home, the operator will once
again have full control. In indoor mode, lost communication mode commands the aircraft
to enter Landing mode. If C2 is regained during the aircraft’s return to HOME, the operator
can wiggle the left joystick to regain control of the aircraft and resume piloting.
3.5.5.6. Camera Aim Point
Camera aim point mode is automatically enabled when the GCS is powered up. While
any selected camera is looking downward, a cursor appears at the center of the field of
view. While this cursor appears on the screen, the GPS location will be calculated at this
point on the ground. In this mode, the location graphic at the bottom of the tablet display
contains the coordinates of the center of the displayed video feed. A small reticle is
generated at the center of the display to aid in pinpointing targets. The indicator has no
information about the ground topography and ASSUMES FLAT GROUND in its
calculation of latitude and longitude. The error in the indicated coordinates will grow with
aircraft altitude and uneven terrain of the underlying ground. Potential error is as great as
twice the size of the indicating reticle box over flat ground and worse over uneven terrain.
When the error is too high, such as when viewing the forward camera feed, the location
graphic will revert to indicating the aircraft location over ground. This is indicated by the
abbreviation “A/C” to the left of the location graphic and the disappearance of the reticle.
3.5.5.7. Rescue
Rescue mode is utilized if the GCS-D is unintentionally powered off midflight by pressing
the
POWER
button, disconnecting the battery, or depleting the battery. Rescue mode
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