Question of Rescue Simulation 2023

[MASA]

Hello
I read “RoboCupJunior Rescue Simulation Rules 2023”. (RCJRescueSimulation2023RulesFinal.pdf)
so I have some questions.

Q.1

Summary
A sample Area 4 (Tentative):

What is the “Tentative” written here?
Does that mean area 4 isn’t an official rule yet?

Q.2

2.3.2. Silver tiles will be placed randomly at the start of each game.

Is this true?
I have never seen silver tiles randomly placed at the start of a game.
How can the silver tiles be randomly placed?
Please tell me how to operate the simulator.

Q.3

2.4.2.1. Area 4 is non-tile-based.
2.4.2.2. There will be various objects, e.g., boxes, inside this area.
2.4.2.1. All traversable paths measure a minimum of 12 cm in width.
2.4.2.2. Area 4 will not exceed one-quarter of the entire arena.

There are two, 2.4.2.1 and 2.4.2.2.
The second 2.4.2.1 → 2.4.2.3
The second 2.4.2.2 → 2.4.2.4
Right?

Q.4

2.4.2.2. Area 4 will not exceed one-quarter of the entire arena.

what is an “arena”?
There is no mention of arena anywhere in this rules.
Dose it mean “field” ?

Q.5

2.6.2. Visual victims are uppercase letters printed on or attached to the wall.

This is the only place in the rules that says “Visual victims”. (all other places are “victims”)
Is this expression “Visual victims” correct?

Regards,
MASA

[elizabeth.mabrey]

To Q1.

• you are correct… The word “Tentative” should not be there.
• Area 4 is in the official rule.
• Apologize - an oversight.

to Q2:

• yes, the silver tile can be placed randomly so that no premaping is possible.
• however, it sounds like you have a more specific view point on the location of silver tile. If it is, please elaborate.

to Q3:

• you are correct - 2.4.2.3 and 2.4.2.4 (un-caught issue from inserting an image in the middle of order-list )

to Q4:

• field == arena
• it shows up also in the summary. However, I do agree that this could have been more consistent.
• thank you for pointing out.

to Q5

• since we cannot possibly have any form physical victims in a simulation environment, we take it for granted that “victims” implicitly mean visual victims.

hope this helps.

–Elizabeth
RCJ 2023 Committee

[MASA]

Hello @elizabeth.mabrey

Thank you reply

I read your answer.
Q.1 Q.3 I understand. please fix the rules or post a rule fix article
Q.4 Q.5 I understand. Since this is a rule, so please standardize terminology.

Q.2 I have a question again

2.3.2. Silver tiles will be placed randomly at the start of each game.

Are you following rule 2.3.2 when playing the Rescue simulation competition?
Are you randomly placing silver tiles at the beginning of every game?

Regards,
MASA

[elizabeth.mabrey]

Hi MASA,

“…Are you randomly placing silver tiles at the beginning of every game?..”
Silver tiles are incorporated into the *.wbt, and thus it will remain in the same location for the rest of a particular round. However, the silver tile will be in a different location a different round, i.e. with a different *.wbt.

In other words, the silver tile won’t change in-between LOP during the duration of a single round. However, it will be different at a different round, as it utimately will use a different *.wbt.

Hope this helps!

–
Elizabeth Mabrey
2023 Committee

[MASA]

Hello @elizabeth.mabrey

Thank you reply

In other words, the silver tile won’t change in-between LOP during the duration of a single round. However, it will be different at a different round, as it utimately will use a different *.wbt.

I understand that as well.
What does it mean in Rule 2.3.2 that the silver tiles are randomly placed at the beginning of the GAME?

I think that Rule 2.3.2 is an impossible and incorrect rule. It will only create confusion for the team.
Why is Rule 2.3.2 necessary?

Regards,
MASA

[elizabeth.mabrey]

I am not sure exactly what you are asking… The rule is necessary… Are you referring to how the rule is phrased in English? Or, thinking the sentence should be removed entirely?

Or, you are questioning “random”?? To the robot, the orientation can be one of the 4 directions, N, E, S, W. So, to the robot, it is random per se. I don’t think it is necessary to define “random”.

[MASA]

Hello @elizabeth.mabrey

Thank you reply

The rule is necessary… Are you referring to how the rule is phrased in English? Or, thinking the sentence should be removed entirely?

I simply want to know why “Rule 2.3.2” is necessary.
I think that Rule 2.3.2 cannot be enforced by anyone.
Or, are you enforcing “Rule 2.3.2” in every game?

Regards,
MASA

[elizabeth.mabrey]

“are you enforcing “Rule 2.3.2” in every game?” YES.

At LOP, the engine may randomize the direction when it puts the bot back at the checkpoint. Thus, the rule should be clear to prompt the teams to prepare for the checking before moving again after LOP; so that no one should assume whichever direction they left off from. However, this logic is pretty obvious. Thus, I suspect I might have misunderstood your point of asking to remove that rule!?

[MASA]

Hello @elizabeth.mabrey

At LOP, the engine may randomize the direction when it put the bot back to the checkpoint. Thus, the rule is necessary to be clear to prompt the teams to prepare for the checking before starting to move again after LOP.

I’m sorry, I’m not sure what you’re referring to or asking.
In this question, I’m not asking about the direction of the robot.
I’m asking about the silver tile at the start of the game.

2.3.2. Silver tiles will be placed randomly at the start of each game.

I simply want to know why “Rule 2.3.2” is necessary.

Regards,
MASA

[elizabeth.mabrey]

because the silver tile will be placed at a various location from one round to another.

[MASA]

Hello @elizabeth.mabrey

because the silver tile will be placed at a various location from one round to another.

Are you calling this ‘random’? I think that the use of ‘random’ is incorrect.
If the fact that the configuration changes every round is considered random, then the position of the black tiles (holes) and speed bumps should also be random. Please define the black tiles (holes) and speed bumps like 2.3.2.
I understand that the course changes every round. However, I’m curious as to why only the silver tile is specified in Rule 2.3.2.

Regards,
MASA