Yes, you mentioned those words in your Subject line.
What of them?

Notes:
- LAN is an abbreviation/acronym, so should be Upper Case.
- 'open source' does not necessarily mean 'free', or freely usable.
- It pays to always ask a specific question, and end that
question with a '?'.
- Each sentence should start with an Upper Case, and
end with a full-stop (.) or question mark (?).  This helps
the reader, and makes answers more likely.
- GIYF.

On Tue, 11 Sep 2007 14:09:49 -0000, "raaj.bptc10@gmail.com"
<raaj.bptc10@gmail.com> wrote, quoted or indirectly quoted someone who
said :

What interface does you remote control speak?  Google that + java.

You would have a little program running on each machine on the LAN and
a master program sending them a socket TCP/IP stream of work packets,
and receiving a stream of sensor data packets back.  See
DataInputStream/DataOutputStream/Socket

See http://mindprod.com/applet/fileio.html for sample code.