Intel Falcon 8+ User Manual page 77


Table 3-6. Operational guidelines in case of emergency
Event
In GPS-Mode:
Position accuracy of the UAV is
low, and it starts drifting from its
current position.
In GPS-Mode:
The UAV does not seem to react
to the control inputs of the pilot
while the data link is not
disturbed.
In GPS-Mode:
The UAV is swiftly flying away
from its current position during
vertical take-off.
In GPS- or Height-Mode:
The UAV performs strong
changes in altitude, which have
not been commanded on the
CTR.
Loss of the data link connection
between UAV and CTR
Simultaneous loss of GPS
reception, and data link
connection, between UAV and
CTR
A motor stops working in flight.
®
TM
Intel Falcon F8+
Possible action
Switch to Height-Mode and control the UAV in Height-Mode.
With low GPS reception quality, the UAV might not have automatically
switched to Height-Mode yet, and therefore drift from the current position
without any possibility for the sensors to detect it.
Switch to Height-Mode and control the UAV in Height-Mode.
In GPS-Mode, the right control stick on the CTR commands a specific
speed. If the speed accuracy is low because of a low GPS reception quality
(but not yet automatically activated Height-Mode), the reactions to control
commands might be slow.
Switch to Height-Mode and continue the vertical take-off to get to a safe
distance from the ground and other obstacles quickly. Control the UAV in
Height-Mode.
The compass sensors might have been disturbed on the ground and the
compass error estimation algorithms do not have enough information yet
from other sensors to work with sufficient accuracy. After receiving
enough input from the IMU sensors, the compass error estimation
algorithms are usually capable to stabilize the position control even in GPS
Mode.
See also chapter 3.6 Flight Modes
Switch to Manual-Mode and perform a controlled landing. 
Get help from support to analyze the cause.
Throughout the duration of a mission, there can be a drift of +/- 5 m in
altitude due to all cumulative errors: temperature, drift, weather changes,
etc. If stronger changes occur, there might be a malfunction of the
barometric sensors, which needs to be analyzed.
Because of the triple redundant flight control of the Intel Falcon 8+ UAV
there is a very low probability for this malfunction to occur.
Check the antenna orientation.
Try to shorten the distance to the UAV by walking towards it.
Before take-off:
• Analyze the flight situation and plan the routes to fly.
• Based on this assessment, select an appropriate Link Loss Procedure
for every single flight.
• Always make sure that there will be no obstacles in between the UAV
and its home position if Link Loss Procedure
, has been selected.
ComeHome High
The Intel Falcon 8+ UAS features two fully independent data link
connections.
In case one link is disturbed, there is always a second independent link on
a different channel in the 2.4 GHz band.
In case that both data links are lost, the UAV automatically activates one
of the three Link Loss Procedures you are forced to select before the start.
As soon as the link is re-established you can take control again, and
continue the flight.
All Link Loss Procedures always go into a controlled descend.
Check the antenna orientation.
Try to shorten the distance to the UAV by walking towards it.
The Intel Falcon 8+ UAV will activate the Link Loss Procedure because of
the lost data link connection. As no GPS signal can be received, it is
impossible to locate the home position and a
performed. The UAV will drift with the wind in such a situation.
1. Steer back the UAV with careful control commands and avoid strong
control stick inputs.
2. Carefully land the system.
3. Identify and repair the cause of the failure before flying again.
Should one of the motors become defective, it will be identified by the
UAV and compensated. A visual, and an acoustical warning signal are
given and emitted from the CTR. With the notification all you have to do is
bring the UAV back and land in a safe spot.
User Manual
for further information.
ComeHome Straight
Direct Landing
or
will be
77