The history of robotic vacuum cleaners can be traced back to 1996, when Swedish home appliance giant Electrolux launched the world's first fully automatic robotic vacuum cleaner - the "trilobite". This sweeping robot has a unique design with a height of only 13 centimeters, making it easy to drill into the bottom of furniture for cleaning. It is equipped with ultrasonic sensors that can automatically detect and avoid obstacles while building a room map. After each charge, the "trilobite" can run for 60 minutes in three gears, and when the vacuum cleaner is filled with garbage, it will also emit a light warning, opening the way for the development of robotic vacuum cleaners.