A million robots
In 2025, Amazon put its one millionth robot into its warehouses. They move among people and shelves without crashing thanks to the three eyes you've just learned about.
IN THE WAREHOUSE
Robots read codes on the floor
Shelf-carrying robots read codes stuck to the floor with a camera on their underside to know which square they're on. Robots that roam freely between aisles use LiDAR to map the space and avoid people.
SAFETY
A forklift's stop zone
A self-driving forklift uses LiDAR to draw a no-entry zone around itself. At 2 meters per second it needs 2.2 meters to stop, so the zone is set at 3.3 meters, and the forklift stops when someone steps inside.
TRAFFIC
Cameras at the intersection
At intersections, AI cameras count motorbikes and cars in each direction to extend the green light for the busier side, and read the plates of cars that run a red light.
TRAFFIC
Radar speed guns
Speed guns use Doppler radar like in part 2, turning the frequency shift into kilometers per hour, even at night or in the rain.
LESSON
Pick the eye for the job
Notice how they choose: a camera to read text, radar to measure speed in any weather, LiDAR to avoid people precisely. Wherever someone could get hurt, combine two or more kinds.
This article is based on the video What warehouse robots, forklifts and traffic lights see with from the Mark học AI channel. Watch the video (in Vietnamese) to see the animations.
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