Hi Tully,<br><br clear="all">   Yes, when I type <i>rxgraph</i> , 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&#39;t receive the command. Thanks!<br>-- <br>Eileen<br>TJ University of Shang Hai<br><br>