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Update 'README.md'

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cesar.alejandro 2022-07-05 07:55:28 -07:00
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@ -12,17 +12,17 @@ Steps to recreate stable PX4 environment + working repo
## 1) Installing ROS Melodic
### SETUP SOURCES.LIST
### Setup sources.list
sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
### SETUP YOUR KEYS
### Setup keys
sudo apt install curl # if you haven't already installed curl
curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -
### INSTALLATION
### Installation
sudo apt update
sudo apt install ros-melodic-desktop-full
### ENVIRONMENT SETUP
### Environment setup
echo "source /opt/ros/melodic/setup.bash" >> ~/.bashrc
### DEPENDENCIES
### Dependencies
sudo apt install python-rosdep python-rosinstall python-rosinstall-generator python-wstool build-essential
Initilize rosdep:
@ -30,35 +30,35 @@ Initilize rosdep:
sudo apt install python-rosdep
sudo rosdep init
rosdep update
### PX4 DEPENDENCIES
### PX4 Dependencies
sudo apt-get install python-catkin-tools python-rosinstall-generator -y
wstool init ~/catkin_ws/src
### MAVLINK
rosinstall_generator --rosdistro melodic mavlink | tee /tmp/mavros.rosinstall
### MAVROS
rosinstall_generator --upstream mavros | tee -a /tmp/mavros.rosinstall
### CREATE WORKSPACE AND DEPS
### Create workspace and deps
cd ~/catkin_ws
wstool merge -t src /tmp/mavros.rosinstall
wstool update -t src -j4
rosdep install --from-paths src --ignore-src -y
### INSTALL GEOGRAPHIC LIB DATASETS
### Install geographic datasets
cd ~/catkin_ws
sudo ./src/mavros/mavros/scripts/install_geographiclib_datasets.sh
### BUILD SOURCE
### Build source
cd ~/catkin_ws
catkin build
## 2) PX4 Environment Development
### DOWNLOAD PX4 SOURCE CODE
### Download PX4 source code
git clone https://github.com/PX4/PX4-Autopilot.git --recursive
### RUN UBUNTU.SH
### Run ubuntu.sh
bash ./PX4-Autopilot/Tools/setup/ubuntu.sh
#Restart computer after it is done
### BUILD ROS/GAZEBO: Gets Gazebo9
### Build ROS and Gazebo - This defaults to Gazebo9
wget https://raw.githubusercontent.com/PX4/Devguide/master/build_scripts/ubuntu_sim_ros_melodic.sh
bash ubuntu_sim_ros_melodic.sh
@ -77,39 +77,36 @@ Initilize rosdep:
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:$(pwd)/Tools/sitl_gazebo
roslaunch px4 posix_sitl.launch
## 3) oscillation_ctrl Dependencies
### INSTALL XTERM
## 3) Set up 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
### CLONE OSCILLATION_CTRL
### Clone oscillation_ctrl
cd ~catkin_ws/src
git clone https://git.spirirobotics.com/cesar.alejandro/oscillation_ctrl.git
### 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
### Add files to _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
cp -R ~catkin_ws/src/oscillation_ctrl/models/* ~/PX4-Autopilot/Tools/sitl_gazebo/models
cp -R ~catkin_ws/src/oscillation_ctrl/worlds/* ~/PX4-Autopilot/Tools/sitl_gazebo/worlds
### ROMFS/PX4FMU_COMMON
- copy (or add) files in _oscillation_ctrl/airframes_ to _PX4-Autopilot/ROMFS/px4fmu_common/init.d-posix/airframes_
### Add files to _ROMFS/px4mu_common
copy (or add) files in _oscillation_ctrl/airframes_ to _PX4-Autopilot/ROMFS/px4fmu_common/init.d-posix/airframes_
cp -R ~catkin_ws/src/oscillation_ctrl/airframes/* PX4-Autopilot/ROMFS/px4fmu_common/init.d-posix/airframes
- add model names to _CmakeLists.txt_ in same 'airframe' folder (with number... 4000_spiri and 4001_spiri_with_tether)
- add airframe name in _~/PX4-Autopilot/platforms/posix/cmake/sitl_target.cmake_ (no number!)
### LAUNCH FILES
- copy (or add) files from px4_launch directory to '~/PX4-Autopilot/launch'
add model names to _CmakeLists.txt_ in same 'airframe' folder (with number... 4000_spiri and 4001_spiri_with_tether)
add airframe name in _~/PX4-Autopilot/platforms/posix/cmake/sitl_target.cmake_ (no number!)
### Add necessary launch files
this should not be a necessary step and will be changed in the future
copy (or add) files from px4_launch directory to '~/PX4-Autopilot/launch'
cp -R ~catkin_ws/src/oscillation_ctrl/px4_launch/* ~/PX4-Autopilot/launch
#### CHANGE DEVEL/SETUP.BASH
#### Change devel/setup.bash
In catkin_ws (or any working directory) add to devel/setup.bash:
CURRENT_DIR=$(pwd)
@ -129,6 +126,7 @@ In catkin_ws (or any working directory) add to devel/setup.bash:
- tl: segment length (should be no shorter than 0.3 meters)
- __IMPORTANT:__ in order for jinja file to work, the following needs to be added to the _CMakeLists.txt_ (Ln 288 - may change in future) in the _~/PX4-Autopilot/Tools/sitl_gazebo_ folder:
COMMAND
${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/jinja_gen.py models/spiri_with_tether/spiri_with_tether.sdf} ${CMAKE_CURRENT_SOURCE_DIR}
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/scripts/jinja_gen.py models/spiri_with_tether/spiri_with_tether.sdf
@ -138,14 +136,19 @@ In catkin_ws (or any working directory) add to devel/setup.bash:
## ROS NODES
- __LinkState.py__ determines payload load angles and their rates (theta and phi), as well as determines tether length and keeps track of variables needed in case of step test.
__LinkState.py__ determines payload load angles and their rates (theta and phi) using Gazebo (needs to be made more robust), as well as determines tether length and keeps track of variables needed in case of step test.
### Publishes to:
/status/twoBody_status # localization and angles
/status/load_angles # payload angles (and tates) relative to vehicle
/status/path_follow # boolean to run trajectory test
### Subscribes to:
none
- __ref_signalGen.py__ takes in desired position (xd) and determines smooth path trajectory.
__wpoint_tracker.py__ Sets original waypoints to be (in meters): [x=0,y=0,z=5]. This node listens to topic to keep track of desired waypoints. If any other node wants to change the waypoints, they publish to "reference/waypoints" and __wpoint_tracker creates these new waypoints.
### Publishes to:
none
### Subscribes to:
/reference/waypoints
__ref_signalGen.py__ takes in desired position (xd) and determines smooth path trajectory.
### Publishes to:
/reference/path # smooth path
/reference/flatsetpoint # needed to determine thrust
@ -156,7 +159,7 @@ In catkin_ws (or any working directory) add to devel/setup.bash:
/mavros/imu/data
/mavros/state
/reference/waypoints
- __klausen_control.py__ determines forces on drone needed based on smooth path and feedback to dampen oscillations. From the forces needed, it publishes attitude commands.
__klausen_control.py__ determines forces on drone needed based on smooth path and feedback to dampen oscillations. From the forces needed, it publishes attitude commands.
### Publishes to:
/command/quaternions # attitude commands
### Subscribes to:
@ -166,7 +169,7 @@ In catkin_ws (or any working directory) add to devel/setup.bash:
/mavros/local_position/velocity_body
/mavros/imu/data
- node from _mavros_controllers/geometric_controller_ subscribes to _/reference/flatsetpoint_ to determine thrust commands which are published to _command/bodyrate_command_ by default
- __path_follow.cpp__ sets the vehicle in OFFBOARD mode (PX4) and takes off to a set height for 25 seconds before starting to publish attitude and thrust commands.
__path_follow.cpp__ sets the vehicle in OFFBOARD mode (PX4) and takes off to a set height for 25 seconds before starting to publish attitude and thrust commands.
### Publishes to:
mavros/setpoint_position/local # needed to hover @ set height
mavros/setpoint_raw/attitude # attitude and thrust commands
@ -183,17 +186,15 @@ In catkin_ws (or any working directory) add to devel/setup.bash:
__model:__
spiri_with_tether # default
spiri
headless_spiri_with_tether # headless mode: launches with no Gazebo GUI
spiri_with_tether # Spiri Mu with a tethered payload
spiri # Spiri Mu without tethered paylaod
headless_spiri_with_tether # headless mode: launches with no Gazebo GUI. This is the default model
__test:__
none # default
step # step input - default is 5 m
square # square trajectory
- To run the simulation with a tethered payload headless mode and perform a step test:
roslaunch oscillation_ctrl klausen_dampen.launch model:=headless_spiri_with_tether test:=step
To run the simulation with a tethered payload headless mode and perform a step test:
roslaunch oscillation_ctrl oscillation_damp.launch model:=headless_spiri_with_tether test:=step