According to the degree of intelligence, seat belts are divided into passive seat belts and automatic seat belts.
(1) Passive seat belts need to be operated by the occupants, that is, they need to be worn by the occupants. At present, most cars are equipped with passive seat belts.
(2) An automatic seat belt is a seat belt that automatically restrains the driver or passenger, that is, when the car is started, it can automatically provide protection without the driver or passenger operation, and the passenger does not need any manipulation actions when getting on and off the car. Automatic safety belts are equipped with automatic safety belts and semi-automatic safety belts.
