The intelligent blackboard of projection writing on the blackboard integration

The utility model discloses an intelligent blackboard of projection writing on the blackboard integration, its structure includes tumbling-type blackboard, computer, projecting apparatus, its characterized in that: the projecting apparatus screen is made simultaneously to said tumbling-type blackboard, and its mechanical transmission part is provided with the roll encoder, the roll encoder through USB connecting wire or wireless mode be connected to the computer the utility model discloses a mode of blackboard-projection linkage makes projection and blackboard unite two into one, and messenger mr intuitively more explains knowledge for the student, the when used, the blackboard linked computers that will roll, the teacher passes through computer play software broadcast courseware, and the teacher can write the writing on the blackboard at desired position simultaneously, and if the content below wanting to show, the only need will shift up with the writing on the blackboard by roll blackboard, projection content in step, and to the writing on the blackboard that no longer needs, teacher's only need continues to roll, makes the content roll to the blackboard verso, can be by automatic the wiping of blackboard eraser group, to the part that does not need the writing on the blackboard, the teacher can be by the touch pad projection of rolling fast.