Smart electronic blackboard

Abstract

The invention discloses a smart electronic blackboard comprising a blackboard frame. A touch display screen is arranged inside the blackboard frame, and comprises an infrared touch frame, glass and a smart film; the infrared touch frame sleeved on the periphery of the blackboard frame is electrically connected with a host; the glass is paved on the surface of the blackboard frame; the smart film is adhered to the glass; the host is electrically connected with a projector; a key set is arranged on one side of the blackboard frame and electrically connected with the host. The smart electronic blackboard is simple and practical. Since timeliness and controllability are fully utilized in touch screen displaying, the shortcomings that a conventional blackboard is poor in display effect and severe in dust pollution, and conventional projection equipment cannot be written on and the like are overcome.

Description

technical field [0001] The invention relates to a blackboard, in particular to an intelligent electronic blackboard. Background technique [0002] The use of chalk and a blackboard format for teaching lessons has long held a very important place in the field of education. It not only has the advantage of low teaching cost, but also the teacher's vivid lectures and graphic illustrations or explanations on the blackboard can greatly improve students' attention and thus improve learning efficiency. However, as people have a deeper understanding of certain diseases, the disadvantages of traditional chalk teaching have gradually attracted attention. For example, the chalk dust produced by chalk when writing and wiping, its main component is calcium sulfate or calcium carbonate. Inhalation into the trachea will cause discomfort in the nose, pharynx, and throat. If you stay in this environment for a long time, you are more likely to suffer from lung cancer. With the vigorous dev...

AI Technical Summary

Problems solved by technology

With the vigorous development of multimedia teaching, multimedia classrooms are widely used in today's campuses, which partially solves the problems caused by chalk writing on blackboards. However, the current multimedia teaching still has the following deficiencies: 1. In the teaching process, if you want to It is very inconvenient to add illustrations and mathematical formulas to the prepared courseware. It is necessary to use the handwriting board for teaching. The handwriting board is separated from the screen, which is inconvenient to use

2. There are many multimedia devices, and projectors and projection screens need to be equipped separately

3. The screen is generally white and cannot be used in brightly lit environments

4. Single function, no scalability

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