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cesar.alejandro 2022-03-04 17:50:40 +00:00
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# oscillation_ctrl # oscillation_ctrl
Repo containing oscillation damping controller for tether missions + instructions how to to set up Repo containing oscillation damping controller for tether missions + instructions how to to set up
Cesar Rodriguez
February 2022
Steps to recreate stable PX4 environment + working repo
#STEP 1) Installing ROS Melodic
- SETUP SOURCES.LIST
sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
- SETUP YOUR KEYS
sudo apt install curl # if you haven't already installed curl
curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -
- INSTALLATION
sudo apt update
sudo apt install ros-melodic-desktop-full
- ENVIRONMENT SETUP
echo "source /opt/ros/melodic/setup.bash" >> ~/.bashrc
- DEPENDENCIES
sudo apt install python-rosdep python-rosinstall python-rosinstall-generator python-wstool build-essential
Initilize rosdep:
sudo apt install python-rosdep
sudo rosdep init
rosdep update
- PX4 DEPENDENCIES
sudo apt-get install python-catkin-tools python-rosinstall-generator -y
wstool init ~/catkin_ws/src
- MAVLINK
rosinstall_generator --rosdistro melodic mavlink | tee /tmp/mavros.rosinstall
- MAVROS
rosinstall_generator --upstream mavros | tee -a /tmp/mavros.rosinstall
- CREATE WORKSPACE AND DEPS
cd ~/catkin_ws
wstool merge -t src /tmp/mavros.rosinstall
wstool update -t src -j4
rosdep install --from-paths src --ignore-src -y
- INSTALL GEOGRAPHIC LIB DATASETS
cd ~/catkin_ws
sudo ./src/mavros/mavros/scripts/install_geographiclib_datasets.sh
- BUILD SOURCE
cd ~/catkin_ws
catkin build
#STEP 2) PX4 Environment Development
- DOWNLOAD PX4 SOURCE CODE
git clone https://github.com/PX4/PX4-Autopilot.git --recursive
- RUN UBUNTU.SH
bash ./PX4-Autopilot/Tools/setup/ubuntu.sh
Restart computer after it is done
- BUILD ROS/GAZEBO: Gets Gazebo9
wget https://raw.githubusercontent.com/PX4/Devguide/master/build_scripts/ubuntu_sim_ros_melodic.sh
bash ubuntu_sim_ros_melodic.sh
- Download QGroundControl from:
https://docs.qgroundcontrol.com/master/en/releases/daily_builds.html
- Build jMAVSim and Gazebo
cd ~/PX4-Autopilot
make px4_sitl jmavsim
%%% May need to open QGroundControl for it to work %%%
make px4_sitl gazebo
- Create px4 package
cd ~/PX4-Autopilot
DONT_RUN=1 make px4_sitl_default gazebo
source Tools/setup_gazebo.bash $(pwd) $(pwd)/build/px4_sitl_default
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:$(pwd)
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:$(pwd)/Tools/sitl_gazebo
roslaunch px4 posix_sitl.launch
#STEP 3) This is Cesar stuff, need to do stuff to rebuild oscillation_ctrl
- INSTALL XTERM
sudo apt-get update -y
sudo apt-get install -y xterm
-INSTALL MAVROS_CONTROLLERS
cd ~/catkin_ws/src
clone repo:
git clone https://github.com/Jaeyoung-Lim/mavros_controllers
Download dependencies:
cd ~/catkin_ws
wstool merge -t src src/mavros_controllers/dependencies.rosinstall
wstool update -t src -j4
rosdep install --from-paths src --ignore-src -y --rosdistro $ROS_DISTRO
catkin build
source ~/catkin_ws/devel/setup.bash
~Troubleshooting: https://github.com/Jaeyoung-Lim/mavros_controllers
-TOOLS/SITL_GAZEBO
copy (or add) files in oscillation_ctrl/models and oscillation_ctrl/worlds to PX4-Autopilot/Tools/sitl_gazebo/models and PX4-Autopilot/Tools/sitl_gazebo/worlds respectively
-ROMFS/PX4FMU_COMMON
copy (or add) files in oscillation_ctrl/airframes to PX4-Autopilot/ROMFS/px4fmu_common/init.d-posix/airframes
add file name to CmakeLists.txt in same 'airframe' folder (with number)
add airframe name in ~/PX4-Autopilot/platforms/posix/cmake/sitl_target.cmake (no number!)
-LAUNCH FILES
ccopy (or add) files from px4_launch directory to ~/PX4-Autopilot/launch
-MAVROS
- in px4.launch, replace:
<arg name="fcu_url" default="/dev/ttyACM0:57600" />
<arg name="gcs_url" default="udp-b://127.0.0.1:14555@14550" />
- with:
<arg name="fcu_url" default="udp://:14551@192.168.1.91:14556" />
<arg name="gcs_url" default="udp-b://127.0.0.1:14555@14550" />
- CHANGE DEVEL/SETUP.BASH
In catkin_ws (or any working directory) add to devel/setup.bash:
CURRENT_DIR=$(pwd)
cd ~/PX4-Autopilot
source Tools/setup_gazebo.bash $(pwd) $(pwd)/build/px4_sitl_default
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:$(pwd)
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:$(pwd)/Tools/sitl_gazebo
cd $CURRENT_DIR
#JINJA TETHER FILE
- First two elements can be changed to tweak tether parameters
- number_elements: number of segments tether will be composed of
- tl: segment length (should be no shorter than 0.3 meters)