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0 power board and kinect

asked 2012-03-28 02:26:26 -0500

updated 2016-10-24 09:02:11 -0500

ngrennan gravatar image


I have a question regarding power board. I don't have any external battery so everything is power through roomba's battery. Kinect is connected on 12v dc power connector (spec at max 350mA) on the power board.

Everything works normally. I can control roomba, get video feed from kinect cameras. But I do have a problem with pointcloud data. It starts completely normal. I am receiving pointcloud normally for approximately a minute. After that it just stops. No error messages, the image just freezes. Roomba works all the time withouth problem (teleop, dashboard). It seems like that the openni freezes. Is it possible that kinect doesn't get enought power, that I should use external battery? Or maybe is there a problem with openni kinect driver?

The same problem is when I try to build a SLAM map. It works normally for about a minute then the laser topic stops posting. Since laser is build from pointcloud I think problems are connected.

Also I notice, when I watch only IR stream from kinect, the IR light on kinect flashes slowly. It is not constantly lit. Is that normal? Like that the IR camera is switching between ON and OFF.

Does anybody have the same problem? I start turtlebot with

roslaunch turtlebot_bringup minimal.launch

and start openni with

roslaunch openni_launch openni.launch

Then I run

rosrun rviz rviz

to get the image.

Thank you for your help.

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answered 2012-10-16 01:10:53 -0500

The problem was with the lack of power for Kinect. You have to connect extra battery to the power board. After that it worked normally.

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Asked: 2012-03-28 02:26:26 -0500

Seen: 351 times

Last updated: Oct 16 '12