cg's profile - activity

Dear all,

I am using a roomba 500 series model with kinect (Turtlebot.eu version),in order to perform SLAM with ROS-electric and Linux 11.10 oneiric on both workstation-pc and turtlebot-laptop.

While I follow the tutorial in ROS.org, I get the following error in rviz under laser scanner parameter:

Transform [sender=/openni_manager] For frame [/camera_depth_frame]: Frame [/camera_depth_frame] does not exist.

I tried to change base and fixed frame values to something else, but again no luck.

Can you please let me know if anyone here faced the same error before?

thanks,

cg

P.S.: My camera node runs with no problem, and Kinect is powered up and normally. I have no problem at all to run the turtlebot follower tutorial, which makes use of Kinect and Roomba rover, runs smoothly.

The error that I get in rviz is the following: Transform [sender=/openni_manager] For frame [/camera_depth_frame]: Frame [/camera_depth_frame] does not exist. I follow the turtlebot navigation tutorial from ROS.org

Also I would like to mention that I get an error message in rviz that the laser scannner is not acquiring data. Probably I need somehow to configure rviz to use kinect instead of laser scanner.

First of all I would like to notice that I am using the modified turtlebot roomba 500 series drivers that allow me to use ROS with the Roomba Platform (I am not having the iCreate US version robot). I use a Kinect Sensor (not a laser scanner).

I have an Arduino board connected to the ros-workstation-pc usb port. From the other side there is a ros-turtlebot-pc which is able to interpret voice commands. I would like to issue a vocal command to turtlebot-pc, to signal a toggle from ros-turtlebot-pc to the ros-workstation-pc usb port.

Dear all,

I am currently working on an application, where I want to enable/disable signals via ROS workstation's pc serial or USB port.

I currently issue vocal commands to Turtlebot like 'enable Output #1' or 'enable Output #2'.

I want to interpret these commands into signal toggles at the ROS workstation-pc serial port.

Can you please point me to the right direction, since I cannot source any similar applications online.

Thanks.

Hi to all,

I am trying to roslaunch turtlebot_roomba_navigation gmapping.launch, and I get the errors pasted below.

I am using a workstation pc (ubuntu electric 11.10) and a turtlebot laptop (ubuntu electric 11.10).

I have already rosinstalled turtlebot_roomba on both machines. I am able to roslaunch kinect, roslauch follower etc.

The problem arises when I want to perform the SLAM and mapping tutorials.

Thanks.

core service [/rosout] found
process[slam_gmapping-1]: started with pid [8157]
process[turtlebot_perception_nodelet_manager-2]: started with pid [8158]
process[base_scan_converter-3]: started with pid [8159]
process[base_outlier_removal_filter-4]: started with pid [8167]
process[base_scan_robot_self_filter-5]: started with pid [8184]
process[base_cloud_converter-6]: started with pid [8197]
process[move_base-7]: started with pid [8205]

Failed to load nodelet /base_scan_converter of type parsec_perception/LaserToPointCloudConverter 
According to the loaded plugin descriptions the class parsec_perception/LaserToPointCloudConverter with base class type nodelet::Nodelet does not exist. Declared types are.....

Failed to load nodelet /base_scan_robot_self_filter of type parsec_perception/CircularRobotSelfFilter 
According to the loaded plugin descriptions the class parsec_perception/CircularRobotSelfFilter with base class type nodelet::Nodelet does not exist. Declared types are.....

[ INFO] [1329927076.843547562]: Subscribed to Topics: base_laser_cloud
[ INFO] [1329927077.410143684]: MAP SIZE: 1333, 1333
[ INFO] [1329927077.437484079]: Subscribed to Topics: base_laser_cloud
[ INFO] [1329927078.247663398]: Sim period is set to 0.10

Thanks Kevin,

I had finally worked it out, my localhost was pointing to a static IP I had set in the past, that was different than the one I needed.

I changed the IP settings and it worked.

Regards,

cg

Hello to all,

I am trying to follow the tutorials on ROS wiki.

I came across an error concerning the rosnode ping command.

I am getting the following error:

root@ubuntu:~# rosnode ping my_turtle rosnode: node is [/my_turtle] pinging /my_turtle with a timeout of 3.0s Traceback (most recent call last): File "/opt/ros/electric/ros/bin/rosnode", line 35, in <module> rosnode.rosnodemain() File "/opt/ros/electric/stacks/ros_comm/tools/rosnode/src/rosnode.py", line 713, in rosnodemain sys.exit(_rosnode_cmd_ping(argv) or 0) File "/opt/ros/electric/stacks/ros_comm/tools/rosnode/src/rosnode.py", line 681, in _rosnode_cmd_ping rosnode_ping(node_name, verbose=True, max_count=options.ping_count) File "/opt/ros/electric/stacks/ros_comm/tools/rosnode/src/rosnode.py", line 292, in rosnode_ping errnum, msg = e ValueError: need more than 1 value to unpack root@ubuntu:~#

Any clues?

Thanks.

Dear Lorenz, I also belong in TUM. Which is your Institute?

Dear all,

I am trying to install roomba_500_series in a fresh installation of Ubuntu 11.10 oneiric, which comprises the turtlebot.eu laptop.

The problem I am facing is that the Source: svn http://isr-uc-ros-pkg.googlecode.com/svn/trunk/unstable/roomba_robot no longer works.

Can someone point me out to the correct source?

Regards,

CG