Face recognition roll call system

The utility model relates to the technical field of security and protection supervision, and discloses a face recognition roll call system which comprises a supporting rod, a sliding connecting block and a recognition device, and the recognition device is installed on the outer surface of the supporting rod through the sliding connecting block. The sliding connecting block comprises a spherical sliding block, a connecting rod, a rectangular sliding block and two stepped holes, the spherical sliding block is fixed to one end of the connecting rod, the rectangular sliding block is fixed to the other end of the connecting rod, the number of the stepped holes is two, and the two stepped holes are symmetrically formed in the two sides of the rectangular sliding block correspondingly; a connecting block is fixed to the back face of the recognition device. According to the face recognition roll call system, during face recognition of workers with different heights, the sliding connecting block is slidably mounted on