ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
2017-09-13 15:31:17 -0500 | received badge | ● Famous Question (source) |
2017-04-25 09:26:10 -0500 | received badge | ● Notable Question (source) |
2017-04-25 09:26:10 -0500 | received badge | ● Popular Question (source) |
2016-08-13 08:32:25 -0500 | commented question | Robot fixed in centre, changed shape. That's a good suggestion, will do. |
2016-08-12 15:00:44 -0500 | commented question | Robot fixed in centre, changed shape. I would like to add that I have seen this happen when a robot flips on it's side. Is it something to do with Physics breaking? |
2016-08-12 14:58:54 -0500 | asked a question | Robot fixed in centre, changed shape. Hey, I've been using 25 robots of the same type in a swarm simulation in Gazebo 2.2.3 on ROS Indigo. After about an hour of simulation at least half the robots are fixed in the centre and I cannot move them with the hand tool. They do not respond to their subscribed topics, and actually change shape. In the attached picture ( http://imgur.com/a/YKoYN ) are the normal robots and in the bottom right are about 10 fixed/stuck in the same place. I can't find anything like this online and there are no errors printed on console. I have no idea how to address this and would much appreciate any ideas. |
2016-08-05 04:49:39 -0500 | received badge | ● Enthusiast |
2016-08-04 04:50:20 -0500 | answered a question | How can I spawn multiple of the same robot, and control them individually? This repository has an excellent demo of a robot swarm: https://github.com/nevinvalsaraj/swar... It uses an SDF so works well with Gazebo. |
2016-07-31 16:11:50 -0500 | asked a question | How can I spawn multiple of the same robot, and control them individually? Hey, I'm using Indigo for a project involving swarms of robots. I want to be able to spawn and control multiple of the same URDF into Gazebo. I've been attempting to use the RRBot (from this tutorial: http://gazebosim.org/tutorials/?tut=r... ) for this purpose. I open Gazebo with one RRBot as such: roslaunch rrbot_gazebo rrbot_world.launch And then are able to control it with the topics that this line loads in: roslaunch rrbot_control rrbot_control.launch However, if I load more RRBots into the simulation with different model names and namespaces as with: rosrun gazebo_ros spawn_model -file `rospack find rrbot_description`/urdf/rrbot.xml -urdf -y 1 -model rrbot2 -robot_namespace rrbot2 There are: a) No topics displayed with which to control the newly spawned rrbot2, b) Naming conflicts such as the one below: [ERROR] [1469970215.112663786, 27.972000000]: Tried to advertise a service that is already advertised in this node [/rrbot/controller_manager/list_controllers] Is there a way to spawn multiple of the same URDF that can be independently controlled and not cause conflicts? Any feedback would be much appreciated. |