ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question
0

How to troubleshoot network delay

asked 2013-06-24 17:21:57 -0500

Robin Hu gravatar image

updated 2016-10-24 09:10:59 -0500

ngrennan gravatar image

My robot sends kinect XYZ and RGB data to PC through wifi. The amount of data for each frame is about 700KB, but I can only send 3 frames every second. If I send more frame , the network will be delay heavily. Is this normal?

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
0

answered 2013-06-25 11:26:52 -0500

Philip gravatar image

Assuming wlan standard 802.11b, the maximal bandwith is 11 MBit/s = 1,375 MByte/s. If one kinect frame amounts to 700kBytes, 2 fps would be the upper max. Using wlan standard 802.11g, 22 MBit/s = 2,75 MByte/s = 4fps would be realistic. So I would say that your 3 fps seem to be normal, yes.

depending on your scenario, you could try to separate data acquisition and processing: send only the raw data (rgb, depth map) over the network and assemble the full XYZRGB point cloud at the receivers end.

edit flag offensive delete link more

Comments

Think you very much , I will try it!

Robin Hu gravatar image Robin Hu  ( 2013-06-25 15:46:41 -0500 )edit

Question Tools

Stats

Asked: 2013-06-24 17:21:57 -0500

Seen: 234 times

Last updated: Jun 25 '13