Prashant's profile - activity

I am trying to move PR2 at some point in the xy plane. I am using 'pr2_2dnav_local' package to accomplish this. When I use the code in an empty world it works fine and PR2 is able to reach the goal. However if there are some obstacle near to the goal (no at the goal but near to it) the robot keeps oscillating and is not able to reach the goal. Does anyone have any idea what's going on and how to fix this?

Hi, I went through the tutorial once again. This time i had the torso of the PR2 lifted fully up unlike the last time and it worked fine.

my URDF file was in a different folder than the parser. So I changed the command slightly as given below:

prashanta@prashanta-laptop:~/ros_workspace/learning_urdf$ ./bin/parser /home/prashanta/ros_workspace/models/my_urdf.xml

I hope this helps.

Hi, Thanks for the Reply. Yes it happens every time I run the program. I am using Electric and the robot is a simulated one in Gazebo.

Yes I launched the pr2_tabletop_manipulation.launch first.

Here is the link with the terminal outputs: (http://prashanta-gyawali.blogspot.com/2012/07/picture-of-gazebo-with-pr2-and-terminal.html)

Hi,

I am following the tutorial in the following link : http://www.ros.org/wiki/pr2_tabletop_manipulation_apps/Tutorials/Writing%20a%20Simple%20Pick%20and%20Place%20Application

I am using ROS electric and the robot is a simulated one in Gazebo. I launch the pr2_table_top_manipulation.launch as outlined in the tutorial.

When I try to run the program for the first time an error message is displayed saying "Collision map processing service failed".

When I try to run the program next time following message is displayed: "Waiting for collision processing service to come up" "waitForService: Service [/tabletop_collision_map_processing/tabletop_collision_map_processing] could not connect to host [rufus-uav:56243], waiting..."

Can anybody suggest what might be going wrong? Here is a link with the terminal outputs if anyone wants to have a look at it: http://prashanta-gyawali.blogspot.com/2012/07/picture-of-gazebo-with-pr2-and-terminal.html

Thanks

Hi,

I had a similar problem like yours. I just gave the whole path of the file instead of just the file name and it worked fine.