Elevator door anti-pinch system based on distributed optical fibers

The elevator door anti-pinch system based on the distributed optical fibers comprises a car door and a landing door and further comprises a plurality of sliding rails, a plurality of motors, a plurality of sliding blocks with racks, a plurality of optical fiber transmitting ends, a plurality of optical fiber receiving ends and an optical fiber mechanism. The car door is used for installing and fixing all the mechanisms; the sliding rails are fixed to the car door and comprise the upper end sliding rail and the lower end sliding rail. The motors are fixed to the car door and comprise the upper end motor and the lower end motor. A plurality of slide blocks with racks are mounted on the slide rail, are meshed with the motor and comprise upper end slide blocks and lower end slide blocks; a plurality of optical fiber transmitting ends are mounted on the upper end sliding block; a plurality of optical fiber receiving ends are mounted on the lower end sliding block; two ends of the optical fiber mechanism are respec