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2017-04-04 06:43:58 -0500 asked a question Changing Pose and Twist covariance matrices in sim_p3at/odom topic of amr-ros-config package

Can someone please assist on how one can go about changing the covariance matrices associated with both pose and twist in the rostopic sim_p3at/odom published by the Gazebo simulation of the amr-ros-config package: https://github.com/MobileRobots/amr-r... . I am interested in experimenting with various choices of these covariance matrices and hence the need to be able to change them.

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2017-03-24 12:15:56 -0500 answered a question Why can't I launch amr-ros-config-master and ROSARIA?

I experienced the same problem and got it cleared by redoing the ROSARIA setup using the instructions in http://wiki.ros.org/ROSARIA/Tutorials... . I started from the "Bring ROSARIA into the workspace" section since I already had ROS installed and my catkin workspace setup. Under the next section(Install ARIA and Build ROSARIA), I installed the ARIA dependecy using the given rosdep commands, and after that built ROSARIA using the --force-cmake option on catkin_make as advised. I then proceeded successfully with all the following steps in this tutorial on starting the rosaria node and publishing as well as with running the roslaunch rosaria.launch file from the amr_robots_launchfiles package.

2017-03-24 10:38:54 -0500 commented question Why can't I launch amr-ros-config-master and ROSARIA?

OK, I will do so in a few moments. Let me draft it.

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2017-03-24 10:03:51 -0500 commented answer Using Gazebo Simulator with ROSARIA

Alright, that clears it, thanks Reed

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2017-03-24 09:23:51 -0500 commented question Why can't I launch amr-ros-config-master and ROSARIA?

This has been sorted on my side, I hadn't followed the tutorial on rosaria setup properly. After redoing it the error went away, now i can startup the rosaria node. Yes I am using Indigo on Ubuntu 14.04

2017-03-24 09:09:27 -0500 commented answer Using Gazebo Simulator with ROSARIA

OK, I think I get you now, so it is something to do with manipulating the namespaces of the topics in the code, probably through relative names?

2017-03-24 08:59:18 -0500 commented answer Using Gazebo Simulator with ROSARIA

OK, Please clarify for me how I can do that since the ROS topics my client nodes have to subscribe to or publish on for the Gazebo simulation and the actual robot are different(or maybe more properly - have different namespaces).

2017-03-24 03:50:33 -0500 commented question Why can't I launch amr-ros-config-master and ROSARIA?

I am also getting the same error. The command is: roslaunch rosaria.launch and the output is exactly as shown in the question. The packages have been cloned into the src directory and properly built through catkin_make at the base catkin path

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2017-03-21 05:06:40 -0500 commented answer Using Gazebo Simulator with ROSARIA

Thanks Reed. I thought the Gazebo simulator would also emulate the ARCOS firmware and be accessible via ARIA for client applications. I didn't know that it completely replaces it. What I need is to have a mirrored implementation of algorithms on both the Gazebo Simulation and the actual robot.

2017-03-15 11:50:26 -0500 asked a question Using Gazebo Simulator with ROSARIA

In the tutorial in http://wiki.ros.org/ROSARIA/Tutorials... on "How to Use ROSARIA", under the section "Using MobileSim simulator", it is stated that for more fully featured simulation, one must use stdr_simulator, Stage or Gazebo instead. However details on how to go about using these simulators with ROSARIA are not given.

Please assist me on how to go about doing this, particularly using Gazebo with ROSARIA. I have a Pioneer3AT simulation running in Gazebo, but when I attempt running the ROSARIA node, it returns the error:

bongzaseko@bongzaseko-OptiPlex-9020:~/GoogleDrive/ros/rosaria/catkin_ws$ rosrun rosaria RosAria Connnecting to robot using TCP connection to localhost:11311... Connected to remote host localhost through tcp.

Syncing 0 No packet. Syncing 0 No packet. Syncing 0 No packet. Syncing 0 No packet. Robot may be connected but not open, trying to dislodge. Syncing 0 No packet. Robot may be connected but not open, trying to dislodge. Syncing 0 No packet. Could not connect, no robot responding. Failed to connect to robot.