[robocup-small] Robocup 2012 Major Rule Changes

[Angelo Gurzoni Jr]

Hello everybody
James, thanks for the input, it's certainly valuable information for us.

Taking advantage of this email, the TC would like to ask for videos from the
teams showing their capabilities to pass/play/handle the ball (i.e. not
letting it go out of bounds) so a proper value can be selected. 
Would be of great value as well if logs can be gathered during the video
execution. 



Best,
Angelo 
On behalf of the SSL TC for Mexico 2012


-----Original Message-----
From: robocup-small-bounces at cc.gatech.edu
[mailto:robocup-small-bounces at cc.gatech.edu] On Behalf Of James Bruce
Sent: Thursday, December 15, 2011 8:56 PM
To: Christopher Head
Cc: robocup-small at cc.gatech.edu
Subject: Re: [robocup-small] Robocup 2012 Major Rule Changes

On Tue, Dec 13, 2011 at 15:25, Christopher Head
<chead at interchange.ubc.ca> wrote:
> 1. The maximum ball speed will be reduced from 10m/s to between 6m/s
> and 8m/s. Expect to hear back on the exact limit within the next month
> after we review videos of some tests using the lower speeds.

Hi, here's a data point you may be interested from a former
participant (CMDragons '01-'07; champion in '06 and '07).  Our '07
team would initiate long passes at up to 7.5 m/s, and this did occur
in some of our games based on the logs I dug up.  Obviously we could
not receive the ball at that speed, but since the ball was
decelerating we could kick it faster on a long kick so it would
*arrive* at speed that could be received.

So, a rule change for a maximum speed of less than 6m/s for any kick
would actually limit the passing we did.  With the speed that robots
are now going, it might make long passes difficult.  Options for
avoiding limiting passing would be only applying the max-speed rule to
non-passes (might be hard to referee) or using a limit above 7.5m/s
(such as 8m/s).

Take care,
  James Bruce
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