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Unread 05-11-2014, 09:44
Jon Stratis's Avatar
Jon Stratis Jon Stratis is online now
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Re: Robots sharing information

Check out the FMS whitepaper:
http://www.usfirst.org/sites/default...Paper_RevA.pdf

It seems to indicate that communication between VLANs is not possible, although it doesn't go into sufficient technical detail to explain why.

Quote:
The FRC competition field is configured such that each team has its own virtual local area network (VLAN) within which all data is passed. The characteristics of a VLAN ensure that the command packets from one team’s DS do not cause a response on another team’s robot. These VLANs exist on both the wired and wireless side of the playing field’s network; this is why for example, it’s necessary for a team in Blue Player Station #1 to connect their DS into the corresponding cable for that station. On the wireless side of the network, the VLANs are configured in the field access point by broadcasting an individual network (SSID) for each of the six teams on the field, each with its own encryption passkey. These VLANs are configured prior to the start of each match so that only the six teams assigned in FMS may operate on the field.
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