CN201374129Y - Electronic teaching blackboard based on general PC, touch screen and projection system - Google Patents

Abstract

The utility model relates to an electronic teaching blackboard, in particular to an electronic teaching blackboard based on a general-purpose PC, a touch screen and a projection system. device, projector, projection screen, provided with a touch monitor and touch pen, the display signal output ports of the screen splitter are respectively connected with the display signal input ports of the projector and the touch monitor, and the USB interface or serial port of the touch monitor is connected with the host computer USB interface or serial port connection. The utility model is simple to implement, has good versatility, and is more perfect than the existing system; it is more convenient to use, and the teacher does not need to switch the computer to the traditional blackboard for handwriting, and also saves the blackboard that must be equipped in the existing multimedia classrooms, reducing the cost. Good for physical and mental health and environmental protection.

Description

Electronic teaching blackboard based on general PC, touch screen and projection system

technical field

The utility model relates to an electronic teaching blackboard, in particular to an electronic teaching blackboard based on a general-purpose PC, a touch screen and a projection system.

Background technique

The blackboard is indispensable for teachers to teach and is also an important teaching equipment necessary for various teaching places. With the progress of the times, the ancient teaching form of handwriting teaching through the blackboard has not lost its vitality. The traditional blackboard is made of wood or glass, which is sprayed with black paint, and the teacher writes on it with chalk. When writing or erasing, the chalk dust will fly everywhere, which is harmful to human health and environmental protection, and will reflect light to the light. Affect students' viewing and reading. With the continuous development of science and technology, there has been an audio-visual teaching method, that is, using a computer and a projector. It has a computer host, a computer monitor, a mouse, a screen splitter, a projector and a projection screen. Split screen, projector, project images and text onto the projection screen to realize teaching. But it can only project the contents of the computer host memory under the control of the mouse, and cannot write and draw on the projection screen at will. If you want to write, you have to use a traditional blackboard, draw and draw on the blackboard with chalk, so There is also the problem of chalk dust flying.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an electronic teaching blackboard based on a general-purpose PC, a touch screen and a projection system. There is no need to switch the computer to the traditional blackboard for handwriting. At the same time, it also saves the blackboard that must be equipped in the existing multimedia classrooms, reduces costs, and is beneficial to physical and mental health and environmental protection.

To realize the purpose of this utility model, the following technical solutions are adopted: an electronic teaching blackboard based on a general-purpose PC, a touch screen and a projection system, including a host computer, a display signal input port connected to a display signal output port of the graphics card of the host computer. A screen device, a projector, and a projection screen are characterized in that a touch display and a touch pen are provided, the display signal output ports of the screen splitter are respectively connected with the display signal input ports of the projector and the touch display, and the USB interface or serial port of the touch display Connect with the USB interface or serial port of the host computer.

According to the electronic teaching blackboard realized based on general PC, touch screen and projection system provided by the utility model, its host computer, projector, projection screen, split screen device, touch display and touch pen are all existing mature technologies, and have all They are widely used in various occasions. Connect the screen splitter to the host computer to accept the display output signal generated by the computer graphics card, and send the display signal to the touch monitor and the projector to project on the screen for display, so as to ensure that the content projected by the projector and the content displayed by the touch monitor exactly the same.

When in use, the teacher uses the touch pen to operate on the touch screen to teach handwriting, erase blackboard writing, turn pages, store and print blackboard writing, check historical blackboard writing archives, and watch the content presented by the blackboard display program. Through the image projected by the projector on the projection screen, the teacher's operation result information can be obtained, so as to achieve the same purpose of traditional blackboard handwriting teaching. What the lecturers see through the touch screen and what the students see through the projector is exactly the same, that is, what the teacher sees is what the students get.

In the system, the touch pen and the touch display screen work together to realize all the functions of the existing mouse, so it can be equivalent to operating the blackboard software program through the mouse, but it is more convenient and comfortable than the mouse operation. The blackboard software program receives input events from the touch pen through the touch screen and converts them into corresponding drawing, writing or other operation commands to realize handwriting teaching content, erase blackboard content, turn pages, store and print blackboard content, and view historical blackboard archives , watch the content presented by the blackboard display program, etc. The utility model can be realized by transforming the existing multimedia classroom, that is, the blackboard program is installed on the computer mainframe, and the existing computer display is replaced with a touch display, while others such as screen splitters, projectors, projection screens, etc. are usually equipped. Simple to implement, good versatility, more perfect than the existing system; more convenient to use, teachers do not need to switch computers to traditional blackboards for handwriting, but also save the blackboards that must be equipped with existing multimedia classrooms, reduce costs, and are more beneficial Physical and mental health and environmental protection. Therefore, the system has a very high value of promotion and use, and can generate high social and economic benefits.

Description of drawings

The utility model has following drawings:

Fig. 1 is a block diagram of the utility model;

Fig. 2 is the physical schematic diagram of the present utility model.

In the figure: 1-Computer host 2-Projector 3-Projection screen 4-Screen splitter 5-Touch display 6-Touch pen

Detailed ways

Embodiment of the present utility model is illustrated below in conjunction with accompanying drawing. As shown in Figure 1 and Figure 2, an electronic teaching blackboard based on a general-purpose PC, a touch screen and a projection system includes a computer host 1, a display signal input port connected to a display signal output port of the computer host 1 graphics card. 4, projector 2, projection screen 3, are provided with a touch monitor 5 and touch pen 6, the display signal output port of screen divider 4 is connected with the display signal input port of projector 2 and touch monitor 5 respectively, touch monitor 5 The USB interface or the serial port is connected with the USB interface or the serial port of the host computer 1 .

Claims (1)

1. An electronic teaching blackboard based on a general-purpose PC, a touch screen, and a projection system, comprising a host computer (1), a display signal input port connected to a display signal output port of the host computer (1) and a display signal output port (4) , a projector (2), a projection screen (3), are characterized in that a touch display (5) and a touch pen (6) are provided, and the display signal output port of the screen splitter (4) is connected to the projector (2) and the display signal output port respectively. The display signal input port of the touch monitor (5) is connected, and the USB interface or serial port of the touch monitor (5) is connected with the USB interface or serial port of the computer host (1).

Images