Can you use multiple Kinects with openni_launch?

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It appears that way from the outside. It's connected to a laptop and the two kinects are plugged in on opposing sides of the computer. Is there a way to check in the terminal?

You can take a look at the kernel messages when you plug in the Kinects. You should look for something like:

[239890.490560] usb 1-1.3: new high speed USB device number 5 using ehci_hcd

[239995.822980] usb 5-1.4: new high speed USB device number 3 using xhci_hcd

If I am not mistaken, this means that one kinect is connected to the bus 1 and the other to bus 5

Ahhh, yes. I checked out where the kinects were connected to and took this screenshot.(http://imgur.com/AAmUh) I believe they are connected on a separate bus. Do you have any other ideas? Thanks for your help!

mmmm yeah, they seem connected to separate buses. Are you trying to visualize both point clouds with rviz? If you are, remember to set a tf transform between both kinects, otherwise you will not be able to visualize the point clouds.

Thanks, Martin. We discovered that they were connected to two separate buses. Now the two kinects can run on the laptop, slowly, ha ha!

Dear MartinW, I've a request to you. I am going to start a bachelor thesis where i've to work on multiple kinect whish has to supported by open source program. can you please write here how you prepare your pc so that you could connect both the kinects. where can i code to chage the functions or develop the system? I highly appriciate your reply. Thank you.

Hello Asif, I think you just need to make sure the Kinects are running on separate buses and then you can just run openni_launch with the different device IDs to run multiple Kinects. You should be able to do this fairly easily, just make sure you have enough ports and processing power on your comp!