A sensor is defined as a detection device, which can sense the measured information and convert the received information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, storage, display, recording and control.

For robots, sensors are like a medium for robots to know the world. They give robots all the abilities to perceive the external environment, such as vision, strength, touch, smell and taste. They make objects feel like people and bring them back to life slowly. Just like eyes, nose and ears have effects on human body, sensors play the role of receiving external information on hardware.

What is the role of sensors in the future development of robots?

The robot's five sensory abilities, such as vision, force, touch, smell and taste, all need sensor transmission, so it can be said that sensors are like various sensory organs of human beings for robots.

Sensors detect the external working environment and object state of the robot, detect and understand the position, speed, temperature, load, voltage and other information of each joint, and then feed back the information to the controller to form a closed-loop control, which effectively ensures and improves the operability and sensitivity of the robot itself.

The working state of the robot is detected internally, and the sensor really turns the "machine" into a "person" through the comprehensive information interaction of internal and external combination.