Multifunctional interactive intelligent multimedia electronic blackboard

Abstract

The present invention is a multifunctional interactive intelligent multimedia electronic blackboard. The blackboard is designed as a large-scale touch screen system. The built-in computer judges the trajectory of writing and drawing through the change of pressure and electrical characteristics on the blackboard and the pressure signal of electronic chalk. Judging the change of pressure and electrical characteristics on the blackboard and the pressure signal of the electronic blackboard eraser to erase the displayed results at the contact position, so as to realize the function of writing on the blackboard. Through the peripheral device interface, the multimedia information of the peripheral computer can be displayed at any position on the blackboard; the built-in drawing assistant program can assist the teacher to manually draw regular geometric figures; at the same time, the contents of blackboard writing on the blackboard and the teacher's lecture recording are dynamically saved at the same time In the storage system, learners can study the saved multimedia blackboard teaching videos at any time. While inheriting the advantages of blackboard teaching and current multimedia teaching, it reasonably avoids their shortcomings, thereby greatly improving and enriching the functions of the blackboard.

Description

technical field [0001] The invention relates to a multifunctional interactive intelligent multimedia electronic blackboard, which uses a modern touch screen electronic system and designs other auxiliary mechanical and electronic equipment to improve traditional education and academic communication tools, and belongs to the field of education and academic communication. Background technique [0002] The current education and academic exchanges mainly use multimedia teaching and blackboard teaching at the same time, and the current domestic teaching trend has a tendency to despise teachers' blackboard teaching and purely use multimedia teaching. This teaching method is recognized in the teaching of mathematics and science. Has some major flaws. [0003] The main defects of multimedia teaching, especially pure PPT teaching are as follows: [0004] 1. The size of the slide area is too small compared with the blackboard, so the knowledge points that can be accommodated are very ...

AI Technical Summary

Problems solved by technology

In this way, students or listeners form a visual gap in the content of the previous slide, causing difficulties in understanding and remembering

[0005] 2. The switching of slides caused students to be unable to connect in time with the previous parts

[0006]Third, the evolution process of mathematical formulas on the slides is often relatively fast, resulting in visual impact and thinking tension for students, but in traditional blackboard teaching, The teacher takes chalk on the blackboard, evolutionary formulas and theories, and the students' own calculations on the manuscript paper are two identical processes, so there is a buffer time for visual memory

So students have to look at the previous things again, but they can't be realized.

[0009]Second, it is very difficult for teachers to draw on the blackboard and the graphics formed by manual drawing are irregular, but it is impossible to display the dynamic changes of graphics or objects on the blackboard , have to use various arrows to represent the dynamic effect, which is very inconvenient, and it is difficult for students to form an intuitive impression

[0010] 3. Students have to take a lot of notes when they want to go back to read the content written on the blackboard by the teacher after class, which causes distraction

[0011] 4. Students in the back row of the classroom may not be able to see some details of the blackboard writing

[0012] V. Some students are sick or leave school to go home, and it is inconvenient to attend class, so they have to use the notes of their classmates to read

However, products using touch screen technology in education and academic communication have not yet been developed, and no related inventions have been seen so far.

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