<div dir="ltr">Hi,<div><br></div><div>thank you for your feedback to the rules.</div><div><br></div><div>You are right, the limit is meant for both flat and chip kicks. We clarified this this year by adding "in 3D space".</div><div>Measuring the initial ball speed for chip kicks is more difficult than for straight kicks, but it can be estimated by fitting the whole chip kick trajectory.</div><div>The TIGERs autoRef does this and can measure the initial speed quite well given a good camera calibration.</div><div><br></div><div>We want to avoid defining the rules more complex than necessary, so we stick to the velocity limit.</div><div>To get a feeling for the limit: With a chip angle of 45 degrees and 6.5m/s, the max distance is 4.3m.</div><div><br></div><div>Regards,</div><div>Nicolai (TC)</div><div><br><br><div class="gmail_quote"><div dir="ltr">On Thu, May 10, 2018 at 4:11 PM zjunlict zju <<a href="mailto:zjunlict.ssl@gmail.com">zjunlict.ssl@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div dir="auto">To whom this may concern:</div><div dir="auto"><br></div><div dir="auto">Hi, this is ZjuNlict , we just read the robocup rule 2018 thoroughly and have one question to ask, how can you make sure that every team strictly follow the rules of “the shot can not exceed 6.5m/s in the 3D space” which we do think by saying this, you meant both flat shot and chip shot, and the initial speed of the chip shot in 3D space is hard to measure by cameras!!</div><div dir="auto"><br></div><div dir="auto">Best Regards </div><div dir="auto"><br></div><div dir="auto">ZjuNlict </div><br><div class="gmail_quote"><div>On Sun, 6 May 2018 at 12:09 AM <<a href="mailto:robocup-small-request@cc.gatech.edu" target="_blank">robocup-small-request@cc.gatech.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send robocup-small mailing list submissions to<br>
<a href="mailto:robocup-small@cc.gatech.edu" target="_blank">robocup-small@cc.gatech.edu</a><br>
<br>
To subscribe or unsubscribe via the World Wide Web, visit<br>
<a href="https://mailman.cc.gatech.edu/mailman/listinfo/robocup-small" rel="noreferrer" target="_blank">https://mailman.cc.gatech.edu/mailman/listinfo/robocup-small</a><br>
or, via email, send a message with subject or body 'help' to<br>
<a href="mailto:robocup-small-request@cc.gatech.edu" target="_blank">robocup-small-request@cc.gatech.edu</a><br>
<br>
You can reach the person managing the list at<br>
<a href="mailto:robocup-small-owner@cc.gatech.edu" target="_blank">robocup-small-owner@cc.gatech.edu</a><br>
<br>
When replying, please edit your Subject line so it is more specific<br>
than "Re: Contents of robocup-small digest..."<br>
<br>
<br>
Today's Topics:<br>
<br>
1. RoboCup 2018: Automatic Ball Placement (IMPORTANT!)<br>
(Christian Lobmeier)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Sat, 05 May 2018 08:59:33 +0000<br>
From: Christian Lobmeier <<a href="mailto:pardinensis@gmail.com" target="_blank">pardinensis@gmail.com</a>><br>
To: <a href="mailto:robocup-small@cc.gatech.edu" target="_blank">robocup-small@cc.gatech.edu</a>, rc-ssl-tc<br>
<<a href="mailto:rc-ssl-tc@lists.robocup.org" target="_blank">rc-ssl-tc@lists.robocup.org</a>>, <a href="mailto:rc-ssl-oc@lists.robocup.org" target="_blank">rc-ssl-oc@lists.robocup.org</a><br>
Subject: [robocup-small] RoboCup 2018: Automatic Ball Placement<br>
(IMPORTANT!)<br>
Message-ID:<br>
<<a href="mailto:CALw%2B80caYL2fa%2BBO7xpErz3dzYFSHyh6Xs7QDKW9WvvD16rugw@mail.gmail.com" target="_blank">CALw+80caYL2fa+BO7xpErz3dzYFSHyh6Xs7QDKW9WvvD16rugw@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi teams,<br>
<br>
this is just a reminder that the automatic ball placement is mandatory for<br>
division A! This means that in order to shoot a free kick, the robots have<br>
to be able to move the ball towards the designated position.<br>
<br>
*If a team fails to place the ball, the other team can shoot the free kick.*<br>
(provided that the other team is able to place the ball of course)<br>
<br>
The exact automatic ball placement procedure can be found in the rules.<br>
<br>
Division B teams are also encouraged to implement the automatic ball<br>
placement. In contrast to division A however, it's voluntary and failing to<br>
place the ball won't have any consequences on the game. Instead, the<br>
RoboCup can serve as a great opportunity to test your implementation.<br>
<br>
Best,<br>
Christian<br>
-------------- next part --------------<br>
An HTML attachment was scrubbed...<br>
URL: <<a href="https://mailman.cc.gatech.edu/pipermail/robocup-small/attachments/20180505/482a40df/attachment-0001.html" rel="noreferrer" target="_blank">https://mailman.cc.gatech.edu/pipermail/robocup-small/attachments/20180505/482a40df/attachment-0001.html</a>><br>
<br>
------------------------------<br>
<br>
_______________________________________________<br>
robocup-small mailing list<br>
<a href="mailto:robocup-small@cc.gatech.edu" target="_blank">robocup-small@cc.gatech.edu</a><br>
<a href="https://mailman.cc.gatech.edu/mailman/listinfo/robocup-small" rel="noreferrer" target="_blank">https://mailman.cc.gatech.edu/mailman/listinfo/robocup-small</a><br>
<br>
<br>
End of robocup-small Digest, Vol 149, Issue 3<br>
*********************************************<br>
</blockquote></div></div>
_______________________________________________<br>
robocup-small mailing list<br>
<a href="mailto:robocup-small@cc.gatech.edu" target="_blank">robocup-small@cc.gatech.edu</a><br>
<a href="https://mailman.cc.gatech.edu/mailman/listinfo/robocup-small" rel="noreferrer" target="_blank">https://mailman.cc.gatech.edu/mailman/listinfo/robocup-small</a><br>
</blockquote></div></div></div>