Hi Eileen,

Does your robot have a node subscribing to the cmd_vel published by
p3robot_tele_key?  If so, can you use rosnode
<http://ros.org/wiki/rosnode>to check/ping the node?

John

On Tue, Oct 19, 2010 at 6:01 AM, 甄灵 <zhenlin86@gmail.com> wrote:

> Hi Tully,
>
>    Yes, when I type *rxgraph* , I find that some point where commands are
> sent but not recieved. And the problem is that I write a different node name
> when publish, so the robot can't receive the command. Thanks!
>
> --
> Eileen
> TJ University of Shang Hai
>
>
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