collision detection
nounUK /kəˈlɪʒ.ən dɪˈtek.ʃən/
US /kəˈlɪʒ.ən dɪˈtek.ʃən/
Collision detection is how a computer knows when two things bump into each other.
The game uses collision detection to stop your car when it hits a wall.
OTHER MEANINGS
2. In computer graphics, the process of checking whether two shapes or objects overlap in a scene.
The renderer runs collision detection before drawing the moving objects.
3. In networking, a method for finding when two signals sent on the same channel interfere with each other.
Ethernet uses collision detection to manage devices sending data at the same time.
4. In robotics, the act of sensing when a robot's parts might touch an obstacle.
The robot arm relies on collision detection to avoid hitting the table.