# Number of victims per tile

Hi
In a dead end, a tile has 3 walls (e.g. right, left and front wall). There can be a visual victim on every wall. What is the process then?

the robot has one camera. In order to detect all walls, the robot has to turn 90° twice. Do I then have to flash for 5s on each wall and then drop the rescue kits for each wall separately?

If the robot has 2 cameras, the cameras see 2 walls at once (e.g. right and left wall). Do I then have to flash for 5s on each wall and then drop the rescue kits for each wall separately? Does flashing on the right or left make sense to mark the victims? The victim on the front wall must be detected separately by rotating the robot by 90°.

Does the robot have 3 cameras. Do I then have to flash for 5s on each wall and then drop the rescue kits for each wall separately? Does flashing on the right, front and left make sense to mark the victims?

Joachim

Hi @Joachim,
refer to the rule 4.6.1. To successfully identify a victim, the robot must stop within 15 cm of a victim and blink an indicator visible to the referee for the full 5 seconds while stationary.
This means that in a case of a dead end with 3 victims your robot only needs to blink for 5 seconds one time, in order to gain points for all three victims. Even if your robot is only equipped with one camera and detected a single victim, points for identification of all three victims will be awarded if the rule 4.6.1 was satisfied.

However, the rescue kits have to be delivered to each victim separately as per rule 4.6.3. A robot must deploy a rescue kit entirely within 15 cm of the victim to successfully deploy a rescue kit. The deployment point is determined by the location of the rescue kit when the robot moves entirely out of the 15 cm boundary of the victim.

In conclusion, you have to flash the LED just once (for 5 s) in order to identify all victims within a 15 cm radius, but rescue kits have to be delivered separately for each victim.

Matej

Hi @Matej
Thank you for the detailed answer.
One question is still open: Is it also allowed to flash separately for 5 seconds for each victim or does that result in a point deduction?

regards
Joachim

See 4.6.13. Misidentification. If a robot identifies a victim through methods outlined in 4.6.1 but is outside the 15 cm radius of any victim, 5 points will be deducted. This scenario doesn’t apply to delivering the incorrect number of rescue kits to victims. The total points will never go below zero points.

To clarify, if you blink led for each victim, therefore multiple times in the same tile, it will not be considered as misidentification, so there would be no point deduction.

Best,
Matej