CN107591037B - Multimedia teaching projection system - Google Patents
Multimedia teaching projection system Download PDFInfo
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- CN107591037B CN107591037B CN201710889020.2A CN201710889020A CN107591037B CN 107591037 B CN107591037 B CN 107591037B CN 201710889020 A CN201710889020 A CN 201710889020A CN 107591037 B CN107591037 B CN 107591037B
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Abstract
A multimedia teaching projection system comprising: the first projector is used for projecting the display content of the teacher computer to the teaching area; a second projector capable of projecting the received content to a teaching area; each node of the multi-node movable guide rail is arranged near the student computer end; the mobile camera equipment can move to the student computer end node according to the instruction; the mobile camera shooting equipment is connected with the second projector and can transmit the camera shooting signal to the second projector; and the switching device can switch the projection equipment in the teaching area from the first projector to the second projector according to the instruction. The multimedia teaching projection system can be used for teaching of different courses, increases the interaction between teachers and students, enriches teaching contents and increases the exercise opportunities of the students.
Description
Technical Field
The invention relates to a projection system, in particular to a multimedia teaching projection system.
Background
Modern science and technology is advancing at a time of day and night, and the emergence of multimedia computers is bringing about profound changes to education. The multimedia computer and the projector are introduced into a classroom, and computer-aided teaching is utilized, so that the epoch-making, competitiveness and development of teaching are favorably embodied, the challenge of new era and new technology is favorably met, a teacher is helped to form new teaching thought, education concept, teaching method and teaching mode in the teaching process, and multimedia projection teaching is increasingly paid attention by school leaders and teachers.
The application of the multimedia projection equipment can create scenes and activate classroom atmosphere, can improve classroom teaching density, enrich teaching contents and increase the exercise opportunity of students: the student thinking can be developed to enlighten the thinking of students, so that the students can actively learn and obtain new knowledge, thereby improving the classroom teaching effect. As a product of the science and technology of the new trend, the multimedia projection equipment is mainly connected with a computer, so that more visual and vivid pictures can be presented, even some contents can be transmitted in the form of videos and sounds, and the teaching contents are enriched to a certain extent, so that the teaching contents can be vivid and lively.
In a multimedia teaching projection system, a teacher usually makes PPT, and a presentation on a teacher computer is projected onto a multimedia curtain for display, so that an interaction link between the teacher and students is lacked. For example, when a programming course is performed, it may be necessary to project a certain student's programming job onto a multimedia curtain for evaluation, and it is currently common practice to copy program codes on student computers out through a storage medium, then copy the program codes onto teacher computers, and play the program codes through the teacher computers, but this is complicated and troublesome.
In the prior art, a method for solving the interaction problem is to connect a teacher computer and a student computer through a campus network, and when the student homework needs to be commented, an image transmitted to a projector is switched to the student computer, so that the function of projecting the student homework on a multimedia curtain for interaction is realized. However, the technical solution can only be used in campuses with networks, and many multimedia classrooms have no network connection with the student computers in order to avoid using the networks when students are in class, and projection interaction cannot be performed in multimedia classrooms without networks.
Disclosure of Invention
The invention provides a multimedia teaching projection system which can perform projection interaction in a multimedia classroom without network connection.
As an aspect of the present invention, there is provided a multimedia teaching projection system including: the first projector is connected with the teacher computer and is used for projecting the display content of the teacher computer to the teaching area; it is characterized by also comprising: a second projector capable of projecting the received content to a teaching area; a switching device capable of switching the first projector or the second projector to project to the teaching area; each node of the multi-node movable guide rail is arranged near the student computer end; the mobile camera equipment can move to the node of the student computer end along the multi-node mobile guide rail according to an instruction so as to shoot a screen of the student computer end; the mobile camera shooting equipment is connected with the second projector and can transmit the camera shooting signal to the second projector; and after the mobile camera equipment reaches the end node of the formulated student computer, the switching device switches the projection equipment in the teaching area from the first projector to the second projector according to the instruction.
Preferably, the teacher computer and the student computer are not connected with each other through a network.
Preferably, the multi-node movable guide rail comprises a general rail located at the rearmost part of a classroom and a row rail connected with the general rail and arranged at each row of the computer end of the student.
Preferably, the multi-node moving guide rails are numbered, wherein the intersection point of the total track and the Ni-th row track is numbered as (0, Ni); the Nj-th student computer end node from the rear part to the front part of the classroom in the Nth column is numbered (Nj, Ni); and after the mobile camera equipment receives the instruction, determining a traveling path according to the serial number of the student computer terminal.
Preferably, the route control device comprises a storage part, a route determination part and an operation control part; the storage part stores a row number R and a column number L of the student computer terminal, and a current row number Ri and a column number Li of the mobile camera equipment; a route determination section that determines a travel path (Ri, Li) - > (0, Li) - > (0, Lt) - > (Rt, Lt) of the mobile image pickup apparatus based on the target student computer end node (Rt, Lt) in the instruction; the operation control section moves the mobile image pickup apparatus from the student computer end node (Ri, Li) to the student computer end node (Rt, Lt) through the multi-node mobile rail based on the travel path determined by the route determination section.
Preferably, the first projector is provided with a shielding device, and the shielding device comprises a first shielding part for shielding the upper left part of the first projector, a second shielding part for shielding the upper right part of the first projector, a third shielding part for shielding the lower left part of the first projector, and a fourth shielding part for shielding the lower right part of the first projector; the second projector is provided with a first projection mode and a second projection mode, and the projection area of the second projector is the whole teaching area in the first projection mode; in the second projection mode, the projection of the projection is overlapped with the projection area of the specific shielding part of the first projector, wherein the projection area of the specific shielding part of the first projector is shielded by the specific shielding part.
Preferably, the second projector includes a position switching unit, a projection zoom unit, and a control unit capable of controlling the position switching unit and the projection zoom unit in accordance with a command so that a projection of the second projector overlaps a projection area of the specific shield unit of the first projector, the projection area of the specific shield unit of the first projector being shielded by the specific shield unit.
Preferably, the mobile camera device is provided with a first camera mode and a second camera mode, the mobile camera device shoots images of all screens of the student computer terminal in the first mode, the mobile camera device shoots images of partial areas of the screens of the student computer terminals in the second mode, the partial areas are 1/6 ~ 1/3 of the screen areas of the student computer terminals, the second projector is in the first projection mode when the mobile camera device is in the first camera mode, and the second projector is in the second projection mode when the mobile camera device is in the second camera mode.
As another aspect of the present invention, there is provided a multimedia teaching projection system, including: the teaching system comprises a projector, a teacher computer end and a student computer end, wherein the content of the teacher computer end or the content of the teacher computer end are switched to a projected teaching area according to instructions.
Drawings
Fig. 1 is a schematic diagram of a multimedia teaching projection system according to an embodiment of the present invention.
In order to more clearly illustrate the technical solutions of the present invention, the present invention will be briefly described below by using embodiments, and it is obvious that the following description is only one embodiment of the present invention, and for those skilled in the art, other technical solutions can be obtained according to the embodiments without inventive labor, and also fall within the disclosure of the present invention.
The multimedia teaching projection system provided by the embodiment of the invention is used for a multimedia classroom without network connection among computers, and comprises a first projector, a second projector, a switching device, a multi-node movable guide rail and a movable camera device, wherein the first projector, the second projector, the switching device, the multi-node movable guide rail and the movable camera device are shown in figure 1.
The first projector is connected with a teacher computer positioned in the front of a classroom and is used for projecting teaching contents, such as PPT (point-to-point) on the teacher computer to a teaching area, wherein the teaching area can be a projection screen or a teaching wall. The projection screen may be a moveable projection screen.
And the second projector receives the content to be projected and projects the content to the teaching area. The projection area of the second projector may be set as the entire teaching area, or may be adjustable, and the projection area of the second projector may be projected to a partial area of the teaching area.
The multi-node movable guide rail is arranged according to the position of a student computer end in a classroom, and each node is arranged near the student computer end. Specifically, the multi-node movable guide rail comprises a main rail located at the rearmost part of the classroom and row rails connected with the main rail and arranged on all rows of the student computer side. Numbering the multi-node moving guide rails, wherein the intersection point of the total track and the Ni-th row track is numbered as (0, Ni); the Nj-th student computer end node from the rear part to the front part of the classroom in the Nth column is numbered (Nj, Ni); and storing the student computer end node number set in a storage part.
And the mobile camera equipment is connected with the second projector and can transmit the camera shooting signal to the second projector. The mobile camera equipment can move to the node of the student computer end along the multi-node mobile guide rail according to the instruction of the teacher and shoot the screen of the student computer end, so that the content on the screen of the student computer end is projected to a teaching area for the teacher to comment. Specifically, the storage part stores a student computer end node number set of a student computer end, and a current row number Ri and a column number Li of the mobile camera equipment; a route determination section that determines a travel path (Ri, Li) - > (0, Li) - > (0, Lt) - > (Rt, Lt) of the mobile image pickup device based on the target student computer end node (Rt, Lt) in the teacher instruction; the operation control section moves the mobile image pickup apparatus from the student computer end node (Ri, Li) to the student computer end node (Rt, Lt) through the multi-node mobile rail based on the travel path determined by the route determination section. After the mobile camera equipment reaches the end node of the formulated student computer through the multi-node mobile guide rail, the switching device switches the projection equipment in the teaching area from the first projector to the second projector according to the instruction.
Through the arrangement of the embodiment of the invention, the multimedia teaching projection system can switch the projection contents of a teacher end and different student computer ends, so that the multimedia teaching projection system has stronger interactivity.
In the teaching process, the teacher may need to compare the teacher-side projection with the student-side projection, for example, the student homework and the standard answer are put together for comparison, but in the above embodiment of the present invention, only the projections of the teacher side and the student side can be switched, and the simultaneous projections cannot be compared.
As a preferred embodiment, the first projector in the above solution is provided with a shielding device, which includes a first shielding part shielding the upper left portion of the first projector, a second shielding part shielding the upper right portion of the first projector, a third shielding part shielding the lower left portion of the first projector, and a fourth shielding part shielding the lower right portion of the first projector.
The second projector sets a first projection mode and a second projection mode, and the projection area of the second projector is the whole teaching area in the first projection mode; in the second projection mode, the projection of the projection is overlapped with the projection area of the specific shielding part of the first projector, wherein the projection area of the specific shielding part of the first projector is shielded by the specific shielding part. The projection area of the specific shielding part is an area which does not need to be compared with the content of the student side in the content of the teacher side.
The second projector comprises a position switching part, a projection zooming part and a control part, wherein the control part can control the position switching part and the projection zooming part according to the instruction so as to enable the second projector to be in the first projection mode or the second projection mode.
The mobile camera equipment can set a first camera shooting mode and a second camera shooting mode; in a first mode, the mobile camera shooting equipment shoots images of all screens of the student computer terminal; in the second mode, the mobile camera device shoots the image of a partial area of the screen of the student computer terminal, wherein the partial area is an area needing to be compared with the content of the teacher terminal and can be an area needing to be compared with the content of the teacher terminal
1/6 ~ 1/3 of screen area of the student computer, when the mobile camera device is in the first camera shooting mode, the second projector is in the first projection mode, and when the mobile camera device is in the second camera shooting mode, the second projector is in the second projection mode.
With the above preferred embodiment, the contents of the student side can be projected to the teaching area together with the contents of the teacher side, thereby enabling the teacher to perform the comparison teaching.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and are intended to be within the scope of the invention.
Claims (1)
1. A multimedia teaching projection system for use in teaching processes in a multimedia classroom where there is no network connection between computers, comprising: the first projector is connected with the teacher computer and is used for projecting the display content of the teacher computer to the teaching area; it is characterized by also comprising: each node of the multi-node movable guide rail is arranged near the student computer end; the teacher computer and the student computer are not connected with each other through a network; the mobile camera equipment can move to the node of the student computer end along the multi-node mobile guide rail according to an instruction so as to shoot a screen of the student computer end; the mobile camera shooting equipment is connected with the second projector and can transmit the camera shooting signal to the second projector; the second projector can project the received camera signal content of the screen of the student computer end to the teaching area; a switching device capable of switching the first projector or the second projector to project to the teaching area; the switching device switches the projection equipment in the teaching area from the first projector to the second projector according to the instruction after the mobile camera equipment reaches the formulated student computer end node; the multi-node movable guide rail comprises a main rail positioned at the rearmost part of a classroom and row rails which are connected with the main rail and arranged at each row of the computer end of the student; numbering the multi-node moving guide rails, wherein the intersection point of a total track and a Ni-th row track is numbered as (0, Ni); the Nj-th student computer end node from the rear part to the front part of the classroom in the Nth column is numbered (Nj, Ni); after the mobile camera equipment receives the instruction, determining a traveling path according to the serial number of the student computer terminal; the storage part is used for storing the line number R and the column number L of the student computer terminal, and the current line number Ri and the column number Li of the mobile camera equipment; a route determination unit that determines a travel path (Ri, Li) - > (0, Li) - > (0, Lt) - > (Rt, Lt) of the mobile imaging apparatus based on the target student computer end node (Rt, Lt) in the instruction and information of the storage unit; the first projector is provided with a shielding device which comprises a first shielding part for shielding the upper left part of the first projector, a second shielding part for shielding the upper right part of the first projector, a third shielding part for shielding the lower left part of the first projector and a fourth shielding part for shielding the lower right part of the first projector; the second projector comprises a position switching part, a projection zooming part and a control part, wherein the control part can control the position switching part and the projection zooming part according to an instruction to enable the projection of the second projector to be overlapped with the projection area of the specific shielding part of the first projector, wherein the projection area of the specific shielding part of the first projector is shielded by the specific shielding part; the second projector is provided with a first projection mode and a second projection mode, and the projection area of the second projector is the whole teaching area in the first projection mode; in the second projection mode, the projection of the projection is overlapped with the projection area of the specific shielding part of the first projector, wherein the projection area of the specific shielding part of the first projector is shielded by the specific shielding part.
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| CN201710889020.2A CN107591037B (en) | 2017-09-23 | 2017-09-23 | Multimedia teaching projection system |
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| CN201710889020.2A CN107591037B (en) | 2017-09-23 | 2017-09-23 | Multimedia teaching projection system |
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| CN107591037B true CN107591037B (en) | 2020-01-14 |
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| EP1347396A1 (en) * | 2002-03-22 | 2003-09-24 | Fujitsu Limited | Apparatus and method for determining whether images correspond to each other and program therefor |
| CN201910145U (en) * | 2010-04-23 | 2011-07-27 | 李成金 | Movable digital projection teaching equipment |
| CN102982397A (en) * | 2011-09-02 | 2013-03-20 | 鲁东大学 | Student computer-on situation motoring system and monitoring method |
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Effective date of registration: 20191211 Address after: Room 405-420, floor 4, building A3, chuanggu Industrial Park, No. 568, Qiyuan Road, Tianxin District, Changsha City, Hunan Province Applicant after: HUNAN XINGTONG CULTURE MEDIA CO., LTD. Address before: Yang Qiao Road, Gulou District of Fuzhou city of Fujian Province, No. 50 350108 Applicant before: Huang Yanyun |
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