06. Challenge: Localization

Help Carla Localize Herself

Carla is lost in the junkyard. Lying around the junkyard are two old tires, a pile of bricks, and a green bucket. Luckily, we have a map of where these are and Carla's sensors are still working.

When asked to describe what's around her, Carla replies:

"Location unknown. I am located between a pile of bricks and a green bucket. Old tire directly to my left."

Can you help Carla use this information to narrow down where in the junkyard she is likely to be?

Based on what Carla sees, there are two locations in the junkyard where she might currently be located. Which two locations shown above (marked as A, B, C, and D) could be Carla's true location?
SOLUTION:
  • C
  • D

Clarifying Question

The information Carla gave us was good, but it could have been better (but we can forgive her, after all she did just wake up).

Based on what Carla's said so far you've localized her to two possible locations. Which of the following questions could you ask Carla to know exactly where she is? (there are 2 correct answers)
SOLUTION:
  • What's directly in front of you: the bricks or the bucket?
  • Are you closer to the bricks or the bucket?

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