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2011-04-21 19:54:57 -0500 marked best answer pioneer 3dx simulation using rviz and stage

RViz listens for TF messages, by default on topic /tf. That is the only way it knows where each part of the robot is relative to other parts of the robot.

On my (simulated) system, /tf is published by nodes amcl, robot_pose_ekf, robot_state_publisher, and gazebo. Perhaps you need to run more nodes to fill in the missing TF frames.

If nothing is filling in the /odom frame, you can try setting the "fixed frame" in RViz to /map or /base_footprint. For that matter, in my system I don't have a frame called /odom, I only have /odom_combined. Maybe that is the problem?

2011-03-30 11:05:38 -0500 commented question Issues with connecting SICK laser to the computer
Yes, there are no other ttyUSBs connected to the computer and ttyUSB1 was the SICK..
2011-03-28 10:29:20 -0500 received badge  Editor (source)
2011-03-28 10:23:51 -0500 asked a question Issues with connecting SICK laser to the computer

Hello all, I'm trying to connect the SICK laser to my computer and I'm following this tutorial: http://www.ros.org/wiki/sicktoolbox_w...

I came across this problem: http://answers.ros.org/question/257/u...

but I fixed it and now it doesn't stop indefinitely. However, there are still issues with connecting to the SICK laser this is what I get when I try to connect:

ros@ros-laptop:~$ rosrun sicktoolbox_wrapper sicklms _port:=/dev/ttyUSB1 _baud:=38400

    *** Attempting to initialize the Sick LMS...
    Attempting to open device @ /dev/ttyUSB1
SickLMS::_setTerminalBaud: ioctl() failed while trying to set serial port info!
    NOTE: This is normal when connected via USB!
        Device opened!
    Attempting to start buffer monitor...
        Buffer monitor started!
    Attempting to set requested baud rate...
A Timeout Occurred!  2 tries remaining
A Timeout Occurred!  1 tries remaining
A Timeout Occurred - SickLIDAR::_sendMessageAndGetReply: Attempted max number of tries w/o success!
    Failed to set requested baud rate...
    Attempting to detect LMS baud rate...
        Checking 19200bps...
SickLMS::_setTerminalBaud: ioctl() failed while trying to set serial port info!
    NOTE: This is normal when connected via USB!
A Timeout Occurred!  2 tries remaining
A Timeout Occurred!  1 tries remaining
A Timeout Occurred - SickLIDAR::_sendMessageAndGetReply: Attempted max number of tries w/o success!
        Checking 38400bps...
SickLMS::_setTerminalBaud: ioctl() failed while trying to set serial port info!
    NOTE: This is normal when connected via USB!
A Timeout Occurred!  2 tries remaining
A Timeout Occurred!  1 tries remaining
A Timeout Occurred - SickLIDAR::_sendMessageAndGetReply: Attempted max number of tries w/o success!
        Checking 500Kbps...
ERROR: I/O exception - SickLMS::_setTerminalBaud: ioctl() failed!
ERROR: I/O exception - SickLMS::_setTerminalBaud: ioctl() failed!
ERROR: I/O exception - SickLMS::_setTerminalBaud: ioctl() failed!
[ERROR] [1301349978.655170587]: Initialize failed! are you using the correct device path?
terminate called after throwing an instance of 'SickToolbox::SickThreadException'
/opt/ros/cturtle/ros/bin/rosrun: line 35:  7086 Aborted                 $exepath "$@"

I'm using ubuntu 10.10 with cturtle, also I have checked the proper permissions and I have the ports set properly:

ros@ros-laptop:~$ ls -l /dev/ttyUSB1
crw-rw-rw- 1 root dialout 188, 1 2011-03-28 15:06 /dev/ttyUSB1
ros@ros-laptop:~$

Any help would be appreciated.

thanks,

Vinay

2011-03-16 09:31:10 -0500 received badge  Supporter (source)
2011-03-04 07:57:45 -0500 asked a question pioneer 3dx simulation using rviz and stage

Hi, I installed ROS on ubuntu 10.10 and I'm trying to simulate a pioneer robot on rviz. I have the usc p2os package and I'm trying to use the pioneer3dx.urdf for the robot simulation. The robot is recognised by rviz but the left, right wheels and hubcaps are not being recognised. I'm getting "no transform from [/...] to [/odom] error. Any help would be greatly appreciated.

thanks, Vinay