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yoshito-n-students / usb_cam_hardware

USB camera driver based on ros_control
MIT License
27 stars 8 forks source link

Cannot Init Usb Cam Hardware #2

Closed joewong00 closed 1 year ago

joewong00 commented 1 year ago

Hi,

I used compressed packet controller for 4 usb cam, however one of them will give me this error:

: Cannot start streaming : Cannot init usb cam hardware

I tried interchanging the usb cam groups in the launch file, all the cameras work fine, but only a maximum of 3 groups are working fine. May I know what are the possible problems here?

yoshito-okada commented 1 year ago

Maybe the power supply or data transfer capability of your computer is not sufficient for 4 cameras. Requesting lower image resolutions to cameras may improve if the issue is the transfer capability.

joewong00 commented 1 year ago

Yes, I realised that it was the data transfer problem, is too power heavy for many cameras with high resolution and framerate. It is fixed when I lowered them, thanks!