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fabrics_ros's Introduction

fabrics_ros

fabrics_ros test

This is a ROS wrapper for implementing fabrics

The list of packages:

  • fabrics_bridge: provides a one-way bridge to enable ROS to use fabrics planner for robot motion planning
  • fabrics_msgs: contains custom messages used in fabrics_ros
  • fabrics_processing: processes output from fabrics planner, and publishes velocity commands to a robot

Installation

Install ROS dependencies

mkdir -p ~/fabrics_ros_ws/src && cd ~/fabrics_ros_ws/src
git clone [email protected]:maxspahn/fabrics_ros.git
rosdep install --from-paths src --ignore-src -y
catkin build 

Install fabrics dependencies

Since there are some python packages not mapped to ROS dependencies, i.g. python3-pykalman, non-ROS Python packages will be installed using pip3. See rosdep/python.yaml for the entire list.

cd ~/fabric_ros_ws/src/fabrics_ros
pip3 install -r requirements.txt

Simulation

To start an Albert simulation environment using velocity control mode:

roslaunch albert_gazebo albert_gazebo_navigation.launch panda_control_mode:=velocity

If you don't have a real goal and obstacles published/detected, run:

roslaunch fabrics_bridge fabrics_interactive_marker.launch

If you have a module which can publish data to /planning_goal and /planning_obs, run:

roslaunch fabrics_bridge fabrics_panda_node.launch

An example client node that can publish /planning_goal and /planning_obs:

rosrun fabrics_bridge client_node

Then, to process output from fabrics, and publish velocity commands to /panda_joint_velocity_controller/command, run:

roslaunch fabrics_processing fabrics_processing.launch

Real Robot

Same steps as in the simulation section except the part launching albert_gazebo_navigation.launch

fabrics_ros's People

Contributors

maxspahn avatar saraybakker1 avatar tckarenchiang avatar

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fabrics_ros's Issues

Changing the planner lead to timeout

@c-salmi reported that is some situations, the planner might become 'dead' after a change of the type of planner.
We should try to report on this with more details if the problem occurs again.

Local minimum for joint space goal

If the arm is folded, self-collision avoidance can lead to local minima in some situations. This is especially true for long-extending end-effectors.

Feature request: Preempt goal without blocking future goals

There is the acc stop command subscriber that sets a boolean here. But this requires an additional call to the topic to unblock (set the boolean to False).

It would be nice to have a way to preemt a goal so the robot will keep the current joint states but doesn't block future goals.

Constraints goal indices error

Encountered this error when working with Yuije to look towards the apriltag. Seems like the indices have to be specified, maybe we could add a better default?

Screenshot from 2023-11-29 10-28-50

version: tag: demo-RH-2023-11-17

Bugs detected in develop branch interactive markers

In the develop branch:
Bug that is remaining after pull request: interactive_marker runs but isn't interacting with the robot.

Other things:

  • end-effector pose reaching is not good in simulation
  • The main branch is not running

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