ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question

move_arm how ignore his arm to collision

asked 2012-08-10 00:10:57 -0500

jep31 gravatar image

updated 2016-10-24 09:00:38 -0500

ngrennan gravatar image

I know my title is not clear but it's difficult to explain.

So I use a wizard description package with a robot arm (Package Arm navigation). I can send a goal(pose and articular) and the robot follow a trajectory I use also a kinect to generate a pointcloud and then a octomap_collision.

My problem it's that the kinect detects the robot like a obstacle and so stops directly. I can see that there are cubes of collision_map in the robot. How can I do to avoid this mistake ? The environment server can understand that this points are the robot ? I think that something exists because it's a very recurrent problem in grasping of object for example.

I don't know if it's more clear. if it isn't, post a question in comment please. Thanks

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2012-08-10 00:22:43 -0500

Adolfo Rodriguez T gravatar image

The self-filtering functionality is implemented in the robot_self_filter package. You can check an example launch setup in the pr2_arm_navigation_perception package.

edit flag offensive delete link more


Thanks for your answer, I think it's what I was looking.

  • This node takes as argument a topic of pointCloud and return the pointCloud filtered ?
  • How I can generate a yaml of pr2_arm_navigation_perception that it's used in the example ?
jep31 gravatar image jep31  ( 2012-08-10 01:17:17 -0500 )edit

I presume you're referring to the self_filter config file. It contains info like the min distance at which the filter operates, and the robot links it will work with (along with geometric padding values to account for calibration and sensing errors). This info is specific to your robot setup.

Adolfo Rodriguez T gravatar image Adolfo Rodriguez T  ( 2012-08-10 01:44:42 -0500 )edit

Further, the list of links you specify in the config file corresponds to those that will show up in the field of view of your sensor(s). That is, you don't want to waste computational resources trying to filter out links that will never come into view.

Adolfo Rodriguez T gravatar image Adolfo Rodriguez T  ( 2012-08-10 01:48:40 -0500 )edit

Question Tools

1 follower


Asked: 2012-08-10 00:10:57 -0500

Seen: 245 times

Last updated: Aug 10 '12