Question

I am having an issue after I upgraded to Gazebo4 from Gazebo2. My reason to upgrade was to have the ability to use multiple contact sensor which apparently is only available 4.1 and higher. I am using URDF instead of SDF since I do plan on using the description for Rviz as well.

My environment is: Ubuntu 14.04; Gazebo 4, Ros Indigo. I am using the "libgazeborosbumper.so" plugin.

Here is my code:

<gazebo reference="left_bump_link">
<sensor type="contact" name="lside_bump_link">
  <always_on>true</always_on>
  <update_rate>10</update_rate>
  <contact>
    <collision>left_bump_link_collision</collision>
  </contact>
  <plugin name="lside_bumper_plugin" filename="libgazebo_ros_bumper.so">
    <bumperTopicName>lside_bumper</bumperTopicName>
    <frameName>lside_bump_link</frameName>
  </plugin>       
</sensor>
</gazebo>

The links and the joints work just fine and like I said, this code worked perfectly fine in Gazebo 2.

When I echo the rostopic "lside_bumper", it shows that it never makes a contact. When I did this on Gazebo2 it gave me all the values when the contact was made.

Has anybody experienced anything similar or anything obvious I am missing?

Asked by arjunmenon03 on 2015-09-10 16:36:27 UTC

Answer 1

I had a similar issue, which I believe is due to gazebo itself. I created a urdf that had a bunch of contact sensors, which were not registering contact on the gz topics even when they were visibly in contact with the ground. This was using Ros Jade and Gazebo 5

After reading this post I switched to Ros Indigo and Gazebo 2, where contacts did register.

Not sure if there were changes in functionality or what, but there is obviously a difference between the two versions.

Asked by Alexander Graber-Tilton on 2015-11-11 00:42:39 UTC

Gazebo 4 Contact sensor issue using URDF

Comments

Answers

Comments