Bret Yen-Ting Lin wrote:
Hi
I am currently working on a research that concerns mobile robots which communicates using wiressless ethernet. I have browsed the mailing list regarding to siiliar questions and came across the topic "wireless support? " dated end of last year. I was hoping that current RTnet could do the job although it currently only works for wired ethernet. My doubts are whether it would still be feasible to use the present RTnet for wireless matters say 3-4 sensor data acquisitions at most of 30Hz each. eepro100 ethernet card is still used as NIC only that the media is air instead of cable.
http://sourceforge.net/mailarchive/forum.php?thread_id=3654120&forum_id=24610
What is stated there is still valid: someone has to create the WLAN framework for RTnet and port at least one driver.
Regarding your requirements: 30 Hz may be feasible, but as WLAN is far from being that reliable as wired LAN, you will have to deal with lost packets in your higher software layers. This is something RTnet cannot influence, especially when other devices are around which uses the same frequencies. RTnet may help with prioritising traffic between all RTnet-aware nodes.
Jan
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