Questions tagged [uav]
Unmanned aerial vehicle. See also the tags ugv & auv.
10
questions with no upvoted or accepted answers
3
votes
0answers
26 views
Battery weight in quadcopter
We all know that the fly time of a quadcopter is proportional to its weight (and the propellers size, etc), and a high capacity battery is heavy, but also a high capacity battery would make the fly ...
2
votes
0answers
16 views
Checking for external compass in mission planner
How can I check whether the external compass is really selected for my APM 2.8 using mission planner.
The primary purpose of using the external compass is to have less electro magnetic interference ...
2
votes
0answers
34 views
How to identificate uav's roll and pitch model and control to track object?
I'm building a drone distance controller for parrot mambo. I need to track a colored page with given distance and given heigth. I can get the yaw information from parrot mambo with 0.5 sec.
Since I ...
2
votes
0answers
89 views
Position-Attitude Kalman filter with Quaternions
I want to design an EKF to estimate the position of a UAV. If I were doing this with Euler angles then I would have a state vector that would look like
\begin{bmatrix}north&east&down&...
1
vote
1answer
107 views
How is the IMU used in the PixHawk?
Looking at 3DR's Pixhawk hardware on GitHub the FMU and IMU are treated as different pieces of hardware. On the schematics for the FMUs (example) there is limited reference to the IMU.
So, is the IMU ...
0
votes
0answers
36 views
Why do we connect pins 2 and 3 on APM to enable PPM
Why is it necessary to connect signal pins 2 and 3 via jumper on an APM2.8 board to enable PPM.
I am using flysky fs-ia6b receiver with the APM mentioned above.
Pins 2 and 3 control pitch and ...
0
votes
0answers
9 views
Will disconnecting the external compass enable internal compass in APM
Will disconnecting the external compass from an APM 2.8 enable internal compass automatically, if the compass jumper is not disturbed while setting up the external compass, i.e. the external compass ...
0
votes
0answers
7 views
Data from Optitrack Motive is not getting streamed properly
i'm currently using optitrack motive 1.10.1 version for tracking 3 UAVs. i'm using vrpn streaming to stream the data. im connecting the host pc (on which motive is running) to router using lan and ...
0
votes
0answers
23 views
Best practices for quad-copter designing
What are the some of the best practices for placing the components (including battery, GPS, flight-controller, wires, receiver etc.) on the air-frame of an 'X' quad-copter to ensure the minimum power ...
0
votes
0answers
15 views
Calculation of quad-copter
Vector rotation around X-axis can be represented as:
Rx = \begin{bmatrix}1&0&0\\0&cos(\alpha)&sin(\alpha)\\0&-sin(\alpha)&cos(\alpha)\end{bmatrix}
Vector rotation around ...
