Clarification on the open soccer league capturezone rule

RoboCupJunior Soccer
1

Hi everyone,

I need some clarification on the rule for the ball-capturing zone for the open league as outlined in the 2024 rules document. The document states:

“Ball-capturing zone is defined as any internal space created when a straight edge is placed on the protruding points of a robot. This means the ball must not enter the convex hull of a robot by more than the specified depth. Furthermore, it must be possible for another robot to take possession of the ball.”

On the robot of my students, when it is inactive, the dribbler forms the protruding points. However, when the ball is captured, the dribbler moves back, and the side guides become the protruding points. Measuring from these side guides, the ball does not enter further than the specified depth of 15mm. However, if we measure from the protruding points of the dribbler in its inactive state (no dribbling/capturing), the specified depth is exceeded.

Given this situation, is their dribbler system compliant with the rules, or could it potentially be flagged for a violation? Any insights or advice would be greatly appreciated!

Regards,
Nawin

2

Hi Nawin,

this sounds really interesting, I’m looking forward to seeing it in action.
Unfortunately if I understand it correctly it may fail inspections. If in its resting configuration (or any configuration it can move into) get the ball in deeper than 15mm that meets the non-passing criteria. We measure this using a ball with a line drawn onto it at 15mm depth that we hold into every indent of the robot. If any part of the robot is “over the line” it is too deep. Similarly we measure robot size with all extendable parts extended (so “worst case” each time).
I hope I understood your description correctly, I am happy to look at a picture or video to make sure I don’t misunderstand if you like.

Best Regards
David