"please point me at a wall" Calibration Error [closed]
Hello,
I've been able to calibrate my Willow Garage turtlebot just fine up until today. When I powered everything up and tried to calibrate the usual way, I get this error repeating in the terminal where I ran this command:
roslaunch turtlebot_calibration calibrate.launch
Error:
[ERROR] [WallTime: 1343379431.664575] Please point me at a wall.
[ERROR] [WallTime: 1343379431.730219] Please point me at a wall.
[ERROR] [WallTime: 1343379431.794893] Please point me at a wall.
[INFO] [WallTime: 1343379431.848461] Still waiting for scan
[ERROR] [WallTime: 1343379431.863741] Please point me at a wall.
[ERROR] [WallTime: 1343379431.931249] Please point me at a wall.
[ERROR] [WallTime: 1343379431.994555] Please point me at a wall.
[ERROR] [WallTime: 1343379432.062440] Please point me at a wall.
[ERROR] [WallTime: 1343379432.130411] Please point me at a wall.
[INFO] [WallTime: 1343379432.153411] Still waiting for scan
[ERROR] [WallTime: 1343379432.194262] Please point me at a wall.
[ERROR] [WallTime: 1343379432.263563] Please point me at a wall.
[ERROR] [WallTime: 1343379432.330134] Please point me at a wall.
[ERROR] [WallTime: 1343379432.394601] Please point me at a wall.
[INFO] [WallTime: 1343379432.457665] Still waiting for scan
[ERROR] [WallTime: 1343379432.463357] Please point me at a wall.
[ERROR] [WallTime: 1343379432.530496] Please point me at a wall.
[ERROR] [WallTime: 1343379432.594017] Please point me at a wall.
[ERROR] [WallTime: 1343379432.663488] Please point me at a wall.
[ERROR] [WallTime: 1343379432.729796] Please point me at a wall.
This repeats forever and ever. Restarting the turtlebot laptop and Create does nothing. There were no changes made to the turtlebot in any way since last time I used it. Any help would be greatly appreciated.
Blair
Looks, like there is no laser data. Can you check, e.g. in rviz, if you get laser scans, and also if you get kinect data?
Yep, rviz works just fine. I get all the Kinect data I could possibly want.
Do you also get laser data in rviz?
Yes
I had the same problem.
I stopped running rviz, put a turtlebot a little farther from a wall,
relaunched calibrate.launch and it worked well.
Why don't you try the same procedures?
So now it starts doing the calibration process, but instead of eventually settling on good calibration values, it always tells me to multiply by ~0.8 to the gyro_scale_correction no matter how many times I run the calibration. The odom_angular_scale_correction seems to be settling ok. Ideas?
Now, it's settling into a correction scale... I have no idea what happened. Thanks for the help.