Skip to content

Latest commit

 

History

History
83 lines (51 loc) · 2.27 KB

File metadata and controls

83 lines (51 loc) · 2.27 KB

Activity 7: Navigation Under the Hood — Experiments

Name:


Part 1: Costmaps and Inflation

Q1: Inflation buffer width in cells

Calculation: ___ m ÷ ___ m/cell = ___ cells


Q2: Inflation zones marked on grid

Copy the grid below and replace free . cells with I where they fall within the inflation buffer of any wall or obstacle:

      0   1   2   3   4   5   6   7   8   9  10  11  12  13
    +---+---+---+---+---+---+---+---+---+---+---+---+---+---+
0   | # | # | # | # | # | # | # | # | # | # | # | # | # | # |
1   | # |   |   | # | # |   |   |   |   |   |   |   |   | # |
2   | # |   |   | # | # |   |   |   |   |   |   |   |   | # |
3   | # |   |   | # | # |   |   |   |   |   |   |   |   | # |
4   | # |   |   |   |   |   |   |   |   |   |   |   |   | # |
5   | # |   |   |   |   |   |   |   |   |   |   |   |   | # |
6   | # |   |   |   |   |   |   |   |   |   |   |   |   | # |
7   | # |   |   |   |   |   |   |   |   |   |   |   |   | # |
8   | # |   |   |   |   |   |   |   |   |   |   |   |   | # |
9   | # |   |   |   |   |   |   |   |   |   | # | # |   | # |
10  | # |   |   |   |   |   |   |   |   |   | # | # |   | # |
11  | # |   |   |   |   |   |   |   |   |   | # | # |   | # |
12  | # |   |   |   |   |   |   |   |   |   |   |   |   | # |
13  | # | # | # | # | # | # | # | # | # | # | # | # | # | # |

Filled-in grid with I cells:

(copy the grid above and mark inflated cells)

Q3: Expected path — left corridor vs. right/center route

(your answer — which route passes through more high-cost inflated cells, and why does the planner prefer the other?)


Q4: Effect of increasing inflation_radius to 0.35 m

(your answer — how many cells wide is the buffer? Is the left corridor between Block A and the border wall blocked?)


Part 2: Nav2 Parameters

Q5: Two situations where AMCL needs more particles


Q6: robot_radius mismatch — TurtleBot4 with TB3 config

(your answer — are the planned paths safe? what would you change?)


Q7: inflation_radius 0.55 m — can the robot fit through a 4-cell doorway?

(your answer — show the buffer calculation and whether the doorway is passable)


Q8: Tolerance 0.5 m — too large vs. too small for a patrol route

(your answer)