Ronello Ninettu
  • Male
  • Munt City
  • Philippines
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Ronello Ninettu's Discussions

Error Computation

Started Oct 3 0 Replies

Hello guys!So I was wondering if, from the data flash logs, I could simply compute the error by: desired roll - roll or something like that.... However, if I use that method I get an average error…Continue

Attitude Control Class

Started Aug 10 0 Replies

Hello! This might be hard to answer but I was wondering where in the libraries or ArduCopter code the children classes are specified to run instead of the parent?For example... we have the…Continue

Tags: MultiCopter, Class, Control, Attitude

Computing the Attitude Percentage Error

Started Jul 19 0 Replies

Hello guys! I've been working on the accuracy and stability of the Pixhawk... and I've been wondering how it is to properly compute the percentage error of its flight... So I've been using the…Continue

SITL stopped working (Ubuntu in Windows VMWare)

Started Jul 11 0 Replies

Hello Guys! I've encountered a problem with my Ubuntu in VMWare.... so I've been doing an altitude test for a while with SITL and have been connecting it with Mission Planner in my windows... And so…Continue

Tags: Ubuntu, VMWare, Windows, SITL, Loop

 

Ronello Ninettu's Page

Latest Activity

Ronello Ninettu posted a discussion

Error Computation

Hello guys!So I was wondering if, from the data flash logs, I could simply compute the error by: desired roll - roll or something like that.... However, if I use that method I get an average error that is completely high...My group is currently focusing on minimizing the error, and we wanted to know if we could use CORRELATION to determine its accuracy instead.... We could correlate the desired roll and the actual roll to obtain its similarities...Has anyone ever done this? Do you think it's an…See More
Oct 3
Ronello Ninettu posted a discussion

Attitude Control Class

Hello! This might be hard to answer but I was wondering where in the libraries or ArduCopter code the children classes are specified to run instead of the parent?For example... we have the rate_controller_run() virtual function in AC_AttitudeControl which is equated to zero because we won't be using it....see "attach1"But instead we would be using the rate_controller_run() of AC_AttitudeControl_Multi (see "attach2")... which inherits from the AC_AttitudeControl.... But as we can see....…See More
Aug 10
Ronello Ninettu posted a discussion

Computing the Attitude Percentage Error

Hello guys! I've been working on the accuracy and stability of the Pixhawk... and I've been wondering how it is to properly compute the percentage error of its flight... So I've been using the telemetry logs since I've only got to the SITL part... However I could not find the best way to solve for the attitude error...For instance we have, desired roll values from the nav_roll to be [0 1 3 1 0] then we have the actual roll to be [0.1 0.9 2.5 0.9 0.1].... How do I compute the percentage error?I…See More
Jul 19
Ronello Ninettu posted a discussion

SITL stopped working (Ubuntu in Windows VMWare)

Hello Guys! I've encountered a problem with my Ubuntu in VMWare.... so I've been doing an altitude test for a while with SITL and have been connecting it with Mission Planner in my windows... And so far it was good... but then my SITL stopped working for some reason... I've tried updating all python stuff and nothing worked... I use this scheme on the terminal below:export PATH=$PATH:$HOME/jsbsim/srcexport PATH=$PATH:$HOME/ardupilot/Tools/autotestexport PATH=/usr/lib/ccache:$PATH. ~/.bashrccd…See More
Jul 11
Ronello Ninettu posted a discussion

Moment of Inertia in SITL

Hello guys! I know measuring the moments of inertia of inertia about the X,Y, and Z axes... However, in the SITL simulation version, I don't know what values are used for the moments of inertia... Is there like a default value for the SITL?See More
Jul 6
Ronello Ninettu replied to Ronello Ninettu's discussion Ardupilot ArduCopter add weight to the code
"even just maybe have the mass value saved at a certain variable... and do all stuff with it... maybe change the throttle PID control... or something... anything that has the mass/weight of the drone in the code..."
Jul 4
Andre K. replied to Ronello Ninettu's discussion Ardupilot ArduCopter add weight to the code
"I don't get it, you do not know what it is, and would use that parameter for something different ? Or what do you mean ?"
Jul 4
Ronello Ninettu replied to Ronello Ninettu's discussion Ardupilot ArduCopter add weight to the code
"well... if I wanna add mass to the code... maybe change something or make use of its value... isn't there any variable which at least makes use of its value.... how is it related to the thrust? Thanks!"
Jul 4
Andre K. replied to Ronello Ninettu's discussion Ardupilot ArduCopter add weight to the code
"No, mass is not of interest, and its effect is related to the total thrust and rate of change of thrust available."
Jul 4
Ronello Ninettu posted a discussion

Ardupilot ArduCopter add weight to the code

Hello guys! I'm currently working on the PID control of the ArduCopter code... and I was wondering where the mass/weight of the quadrator was considered... if it was considered at all... Even just the parameter name is helpful enough...And may I ask if the paramter AP_MOTORS_THST_HOVER_DEFAULT is related somehow to the weight/mass?Thank you!See More
Jul 4
Ronello Ninettu posted a discussion

Install Software In the Loop

Hello guys! I'm a little stupid when it comes to this... but can someone help me with a step-by-step installation of the SITL? I can't seem to accomplish this command:3. Add the following line to the end of .bashrcexport PATH=$PATH:$HOME/ardupilot/Tools/autotestAnyway, I know I sound like a noob... but it's because I am lolThanks for any help!See More
Jun 12
Ronello Ninettu posted a discussion

Inertial Sensor Ardupilot - Arducopter 3.3

Hello! I was studying the inertial sensor of the ardupilot... and I was brought to the very last function that I could think of that stores the accelerometer and gyrometer readings.... which are in the AP_InertialSensor.hThere are the _accel[i] and the _gyro[i] as seen in the attached picture...I couldnt find where the values for _accel[i] and _gyro[i] are found... Could anyone help me? Just point me in the right direction... or any class files.. or functions..Thanks!See More
Jun 5
Ronello Ninettu posted a discussion

Altitude Control ArduCopter 3.x

Hello! I've been trying to study PID and especially the coding implementations of the PID controller onto the ArduCopter code (which I would use for a quadrotor)... So when I was researching, I found several formulas on the altitude control of the PID which they normally call U1 in online journals (as for the motor inputs)... I've noticed that the altitude control using PID made use of the following formula:U1 = [m/(cos theta * cos phi]*( PID )so I've seen the PID controllers on the code in the…See More
May 30
Ronello Ninettu posted a discussion

Motor Programming Arducopter Code

Hi! I'm using the ArduCopter code on Pixhawk, and I was wondering if anyone knew how to output motor movements from the code itself... Let's say in the motor_test.cpp... How can I implement motor speed... in PWM maybe?Thanks!See More
Mar 5
Ronello Ninettu replied to Hoang Cong Anh's discussion Can not receive data on console window
"Hello! This is a stupid question but can i ask how you were able to build the example codes? like for example, I want to build the INS_generic code in the examples folder in the libraries... do i have to use px4 toolchain, eclipse, or some other…"
Jan 27
Ronello Ninettu replied to Hoang Cong Anh's discussion Can not receive data on console window
Jan 27

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