The invention discloses a
big data propagandizing device, a
big data propagandizing
system, and control circuits of the
big data propagandizing device and the big data propagandizing
system. The big data propagandizing device comprises a base, fixing soft plates, tooth grooves, rotation columns, drive tooth rings, sliding mechanisms, fixing bases, limiting frames, balls, rolling wheels, a power supply control mechanism, a protection box, a rotation motor, a turntable, a convex block, a pressing button, a box, a transparent cover board, a safety lock, an observing window, rotating motors and apower box. For the
mobile device provided by the invention, under the driving of the rotating motors and the rotation columns, the fixing soft plates can rotate in a following way, thus the circular demonstration of a poster at different positions is realized, the demonstration and propagandizing effects are improved, the rotating motors are automatically controlled through the power supply control mechanism, so that the poster can roll periodically; through the match between the drive tooth rings and the tooth grooves, the driving effect of the rotation columns for the fixing soft plates canbe improved, and the loosening and slip of the fixing soft plates can be prevented; the side edges of the fixing soft plates can be supported, the droop of the side edges of the soft plates can be avoided, and the movement process of the soft plates is enabled to be smooth.