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ROBOTICS KNOWLEDGE PLATFORM

THE ENGINEERING
BEHIND ROBOTS.

Visual explanations of robotics concepts, from fundamentals to advanced systems.

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Start here WHAT IS ROS 2? The framework most modern robot software is built on, explained with diagrams and a working node. Read the concept →
About Rush Robotics

SEE IT. THEN UNDERSTAND IT.

Rush Robotics is a visual knowledge base for robotics, for students and working engineers. Every concept is explained in the same four parts, so you always know where to look.

  1. 01 · Concept

    Occupancy grid

    A map that divides the world into cells and records, for each cell, whether it is occupied, free or not yet observed.

  2. 02 · Visual
  3. 03 · Explanation
    • Free A LiDAR ray passed through the cell.
    • Occupied A ray ended there: something reflected it.
    • Unknown No ray has reached it yet.
  4. 04 · Example

    A warehouse robot

    As the robot drives, each LiDAR scan turns more unknown cells into free or occupied ones. Its planner only routes through free cells, so the map it builds is the map it navigates by.

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