The number of sensors built into robotic vacuum cleaners can vary depending on the specific model and brand. However, modern robotic vacuum cleaners typically come equipped with multiple sensors to perform their cleaning tasks effectively and navigate the environment autonomously. Some of the common sensors found in robotic vacuum cleaners include:
Collision Sensors: These sensors help the robot detect obstacles and avoid collisions with walls, furniture, and other objects in the cleaning area.
Cliff Sensors: Cliff sensors prevent the robot from falling off stairs or ledges by detecting changes in floor height.
Infrared or Laser Distance Sensors: These sensors enable the robot to map the environment and create a virtual representation of the cleaning area. They help the robot navigate and avoid obstacles more efficiently.
Bump Sensors: Bump sensors detect physical contact with objects, triggering the robot to change direction and avoid getting stuck.
Wheel Drop Sensors: These sensors detect if the robot's wheels are lifted off the ground, indicating that it might be stuck or in an unstable position.
Floor Surface Sensors: Some robotic vacuum cleaners have sensors to identify different floor types (e.g., carpet, hardwood, tile) and adjust their cleaning settings accordingly.
Dust and Dirt Sensors: These sensors detect particularly dirty areas and prompt the robot to spend more time cleaning those spots.
Full Bin Sensors: Robotic vacuum cleaners with a dustbin use these sensors to detect when the bin is full, signaling the need for emptying.
Wall Sensors: Wall sensors help the robot maintain a certain distance from walls and avoid scraping furniture or wall surfaces.
Optical Sensors: These sensors use optical technology to detect dirt and debris on the floor, guiding the robot to focus on heavily soiled areas.
Gyroscopes or IMU (Inertial Measurement Unit): These sensors assist the robot in measuring its orientation, tilt, and rotation, contributing to more precise navigation.
Keep in mind that not all robotic vacuum cleaners will have all of these sensors, and some models may have additional specialized sensors for specific functionalities. The technology used in robotic vacuum cleaners is continually evolving, with newer models incorporating more advanced sensor systems to enhance their cleaning performance and navigation capabilities.