WO2023123124A1 - 高校军事课课程思政的影视歌教学体验器 - Google Patents

高校军事课课程思政的影视歌教学体验器 Download PDF

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Publication number
WO2023123124A1
WO2023123124A1 PCT/CN2021/142697 CN2021142697W WO2023123124A1 WO 2023123124 A1 WO2023123124 A1 WO 2023123124A1 CN 2021142697 W CN2021142697 W CN 2021142697W WO 2023123124 A1 WO2023123124 A1 WO 2023123124A1
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fixedly connected
frame
courses
projection
television
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PCT/CN2021/142697
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English (en)
French (fr)
Inventor
胡刚
吴卫洁
吕刚
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广州工商学院
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Priority to CN202180099373.7A priority Critical patent/CN117581284A/zh
Priority to PCT/CN2021/142697 priority patent/WO2023123124A1/zh
Publication of WO2023123124A1 publication Critical patent/WO2023123124A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip

Definitions

  • the invention belongs to the technical field of multimedia teaching, in particular to a video and song teaching experience device for ideological and political courses of military courses in colleges and universities.
  • the projection screen is either located in the center of the blackboard, making the writing area on both sides too small, or located on one side of the blackboard, which hinders the viewing angle of students; and the general blackboard is limited in size, making the writing area too small. Limited, affecting the quality of teaching.
  • the existing video and song teaching experience device easily blocks the writing area of the blackboard at the bottom during the projection process, and hinders the viewing angle and interaction of students, and the size of the blackboard limits the writing area, which affects the quality of teaching. Therefore, we propose A film and television song teaching experience device for ideological and political courses in military courses in colleges and universities.
  • the purpose of the present invention is to provide an ideological and political video song teaching experience device for military courses in colleges and universities, so as to solve the problem that the existing video song teaching experience device easily blocks the writing area of the bottom blackboard during the projection process, and has a certain impact on the viewing angle and interactivity of students. It is hindered, and the size of the blackboard limits the writing area, which affects the quality of teaching.
  • the present invention is an ideological and political video and song teaching experience device for military courses in colleges and universities, which includes a frame, a projection assembly is arranged above the frame, and a movable assembly is arranged inside it, and a curtain assembly frame is fixed outside the movable assembly
  • the installation of the teaching experience device is completed by fixing the rack on the wall, and the inside and outside of the rack are used to carry various components of the experience device;
  • the projection assembly includes a connecting frame, a screw, a transmission member, a support arm, a connecting rod and a projector, the connecting frame is located directly above the frame, and a screw rod is movably arranged between the inner walls on both sides of the connecting frame, The side of the screw rod is movably connected with a transmission part, one side of the transmission part is fixedly connected with the support arm, the bottom end of the support arm is fixedly connected with the connecting rod, the bottom end of the connecting rod is fixedly connected with the projector, and the connecting frame It is used to fix on the top of the frame.
  • the screw rod rotates to drive the transmission part to move left and right.
  • the projector can also move left and right, so as to be consistent with the position of the projection cloth.
  • the support arm is used to support the projector and hold it Extend one end to facilitate projection onto the surface of the projection cloth, the connecting rod is used to connect the projector, and the projector is mainly used for projection and playing related video and song teaching content;
  • the movable assembly includes a transmission roller and a backboard, and the two transmission rollers are respectively arranged on both sides of the inside of the frame. It is used to drive the belt, and the backboard is electromagnetically attracted to the metal plate after being powered on, so that the writing cloth is attached to the surface of the backboard, and writing is more convenient where there is support;
  • the curtain assembly is covered on two transmission rollers, and the curtain assembly includes a belt, a metal plate, a writing cloth and a projection cloth, the belt is movably arranged on the sides of the two transmission rollers, and one side of the belt is fixedly connected with
  • the metal plate is fixedly connected to the writing cloth on one side of the metal plate opposite to the belt, and the projection cloth is fixed on the outside of the writing cloth.
  • the projection cloth is located directly below the projector.
  • the metal plate can be bent, and it is electromagnetically attracted to the back plate after it is energized.
  • the writing cloth is mainly written on its surface with an oil-based pen, and the surface of the projection cloth is used for projector projection.
  • the projection assembly further includes a fixing piece, a slide rail, a slider and a first motor, the inside of the connecting frame is fixedly connected with a slide rail, the slide rail is movably connected with a slider, and the top of the slider is connected to the
  • the transmission parts are fixedly connected; the two fixed parts are respectively fixedly connected to the inner walls of the opposite sides of the connecting frame, and the two fixed parts are movably connected by a screw rod, and one end of the screw rod passes through one of the fixed parts and the connection in turn.
  • the first motor is fixedly connected to the outside of the connecting frame, the fixing part is used to connect the screw rod, and the slide rail is used for sliding the slider on its surface, and the slider and the top After the transmission part is connected, it plays the role of supporting the transmission part. Since the screw rod is long and the projector is heavy, if it is completely supported by the transmission part, the screw rod is easily deformed under pressure. Add a slider at the bottom to play a supporting role. To prevent deformation of the screw rod, the first motor is used to drive the screw rod to rotate.
  • the movable assembly further includes a second motor, the second motor is fixedly connected to the bottom of the frame, the output end of the top of the frame passes through the frame to its interior, and is fixedly connected to the bottom of the left driving roller, the second The second motor is used to drive the drive roller on the left side to rotate, so that the two drive rollers rotate through the belt.
  • the second motor is fixedly connected to the bottom of the frame, the output end of the top of the frame passes through the frame to its interior, and is fixedly connected to the bottom of the left driving roller, the second The second motor is used to drive the drive roller on the left side to rotate, so that the two drive rollers rotate through the belt.
  • it also includes a wiping assembly.
  • wiping assembly There are two sets of wiping assemblies, which are respectively fixed on both sides outside the frame. Wipe the writing on the surface of the writing cloth.
  • the wiping assembly includes a bracket, a sliding bar, and a wiping bar.
  • the bracket is fixedly connected to the outer side of the frame and is adjacent to the position of the drive roller.
  • One side of the slide bar is fixedly connected with a wiper bar, the inside of the bracket is used to carry the slide bar, the slide bar can slide inside the bracket, and the wiper bar is used to wipe the oil-based pen writing on the surface of the writing cloth.
  • the length of the wiping strip is consistent with the width of the writing cloth, and the wiping strip is close to one end of the writing cloth. Since the length of the wiping strip is consistent with the width of the writing cloth, the wiping strip can completely wipe the writing cloth.
  • a pen slot is fixedly connected to one side of the bottom of the frame, and the length of the pen slot is consistent with the frame, and an LED screen is fixedly connected to the top of the frame, and the top of the LED screen is fixedly connected to the bottom of the connecting frame.
  • the slot is used to place oil-based pens, and the LED screen is used to scroll and play slogans related to the ideological and political education of the course or the theme of this lesson.
  • an equipment box is fixedly connected to the bottom of the rack, the equipment box is electrically connected to the backplane directly above, and the equipment box is used to supply power to the metal plate.
  • the writing area of the blackboard is set as a curtain-like structure that can be driven.
  • the writing cloth is driven to rotate and drive.
  • a part of the writing cloth is located inside the frame, and the writing cloth located outside the frame is not enough in the writing area.
  • a part of the writing cloth located inside the frame is transmitted to the outside of the frame, thereby increasing the writing area, making the teaching writing more consistent, transmitting the writing cloth according to the teaching content, and setting the projection cloth on the writing cloth,
  • the projection cloth is driven out for projection, and when projection is not required, the writing cloth is rotated to expose a large-scale writing area for writing, which improves the flexibility and practicability of the writing process.
  • the projector slides left and right following the projection cloth, always projecting the projection screen on the surface of the projection cloth, according to the interaction requirements in the course , move the projector and the projection cloth to the left and right sides, which is more convenient for students on the left and right sides to watch the projected content, which enhances the interactive effect, and when the projection cloth is moved to either side, the writing area is merged without affecting the projection Viewing of content; through the cooperation of projection components and movable components, the writing area is no longer blocked, and it is more convenient and intuitive to watch the projection content. It eliminates the backlight of the projection screen and makes the projection screen clearer.
  • the backboard in the present invention is a curved board, so after the backboard is energized, it attracts and sticks to the writing cloth, so that the projection cloth has a curved surface concave inward, so that the projection cloth can effectively collect the light emitted by the projector. Light, thus avoiding the problem of scattered projection light, making the projection screen brighter and increasing the visual sensory effect.
  • Fig. 1 is the overall structure schematic diagram of the film and television song teaching experience device of college military course course ideological politics of the present invention
  • Fig. 2 is the enlarged view of place A in Fig. 1 of the present invention
  • Fig. 3 is the front view structure schematic diagram of the film and television song teaching experience device of college military course course ideological politics of the present invention
  • Fig. 4 is an enlarged view at B place in Fig. 3 of the present invention.
  • Fig. 5 is the left view sectional structure schematic diagram of the film and television song teaching experience device of college military course course ideological politics of the present invention
  • Fig. 6 is an enlarged view at C in Fig. 5 of the present invention.
  • Fig. 7 is the top view sectional structure schematic diagram of the film and television song teaching experience device of college military course course ideological politics of the present invention
  • Figure 8 is an enlarged view at D in Figure 7 of the present invention.
  • Fig. 9 is a schematic diagram of the cross-sectional structure of the curtain assembly of the video and song teaching experience device for ideological and political courses of military courses in colleges and universities of the present invention.
  • Fig. 10 is a flowchart of the trapezoidal correction algorithm of the present invention.
  • the present invention is a film and television song teaching experience device for military courses in colleges and universities.
  • the curtain component rack 1 is the main part of the overall teaching experience device.
  • the installation of the teaching experience device is completed by fixing the rack 1 on the wall.
  • the inside and outside of the rack 1 are used to carry the various components;
  • the projection assembly includes a connecting frame 5, a screw mandrel 7, a transmission member 10, a support arm 11, a connecting rod 12 and a projector 13.
  • the connecting frame 5 is located directly above the frame 1, and the connecting frame 5 is movable between the inner walls on both sides.
  • the screw mandrel 7 is movably connected with a transmission member 10 on the side of the screw mandrel 7, one side of the transmission member 10 is fixedly connected with the support arm 11, the bottom end of the support arm 11 is fixedly connected with the connecting rod 12, and the bottom end of the connecting rod 12 is fixed with the projector 13 Connection, the connecting frame 5 is used to be fixed on the top of the frame 1, the screw rod 7 drives the transmission part 10 to move left and right through rotation, and the projector 13 can also move left and right during the left and right movement of the transmission part 10, so as to be consistent with the position of the projection cloth 21 , the support arm 11 is used to support the projector 13 and extend it at a distance from one end to facilitate projection onto the surface of the projection cloth 21, the connecting rod 12 is used to connect the projector 13, and the projector 13 is mainly used for projection and playing related video and song teaching content ;
  • the projection assembly also includes a fixture 6, a slide rail 8, a slide block 9 and a first motor 14, the inside of the connecting frame 5 is fixedly connected with a slide rail 8, the slide rail 8 is movably connected with a slide block 9, and the top of the slide block 9 is connected to
  • the transmission part 10 is fixedly connected;
  • the two fixing parts 6 are respectively fixedly connected to the inner walls of the opposite sides of the connecting frame 5, and the two fixing parts 6 are movably connected by a screw rod 7, and one end of the screw rod 7 runs through one of the fixing parts 6 and
  • the connecting frame 5 is connected to the outside thereof, and is fixedly connected to the output end of the first motor 14, the first motor 14 is fixedly connected to the outside of the connecting frame 5, the fixing part 6 is used to connect the screw mandrel 7, and the slide rail 8 is used for the slide block 9 on its surface Sliding, after the slider 9 is connected to the transmission part 10 on the top, it plays a role in supporting the transmission part 10.
  • the screw rod 7 Since the screw rod 7 is long and the projector 13 is heavy, if it is completely supported by the transmission part 10, the screw rod 7 is easy to be compressed Deformation, a slide block 9 is added at the bottom to play a supporting role to prevent the screw mandrel 7 from deforming, and the first motor 14 is used to drive the screw mandrel 7 to rotate.
  • the present invention uses trapezoidal correction for debugging, so as to clearly and completely project the projected picture on the projection cloth 21.
  • the present invention adopts bilinear interpolation method for projecting the projected picture.
  • Keystone correction which sets a target pixel through coordinate transformation to obtain the floating point coordinates based on the original image as (i+u, j+v), where i and j are non-negative integers, u and v are [0, 1] range of floating-point numbers, the value f(i+u, j+v) of the destination pixel can be determined by the coordinates in the original image as (i, j), (i+1, j), (i, j+1) and (i+1, j+1) corresponding to the value of the four pixels to determine, as shown in formula (1):
  • f(i+u, j+v) (1-u)*(1-v)*f(i, j)+(1-u)*v*f(i, j+1)+u*( 1-v)*f(i+1, j)+u*v*f(i+1, j+1) (1)
  • f(i, j) is the pixel value at the coordinate (i, j).
  • the quality of the image after the algorithm is scaled is high, and it can be applied to the projection in the present invention after debugging, and it is located on the same horizontal line when the projector 13 moves, and there is no need to adjust the picture, only need to adjust during the installation process .
  • the movable assembly includes a drive roller 15 and a back plate 17.
  • Two drive rollers 15 are respectively movable and arranged on both sides inside the frame 1, and one side near the inside of the frame 1 is fixedly connected with the back plate 17.
  • the drive roller 15 is used for driving the belt 18.
  • the backboard 17 and the metal plate 19 are electromagnetically attracted to each other after being powered on, so that the writing cloth 20 is attached to the surface of the backboard 17, and writing is more convenient when there is a support;
  • the bottom of the rack 1 is fixedly connected with an equipment box 3 , the equipment box 3 is electrically connected to the backplane 17 directly above, and the equipment box 3 is used to supply power to the metal plate 19 .
  • the movable assembly also includes a second motor 16, the second motor 16 is fixedly connected to the bottom of the frame 1, and the output end of the top of the frame 1 passes through the frame 1 to its inside, and is fixedly connected to the bottom of the left driving roller 15, the second The motor 16 is used to drive the drive roller 15 on the left side to rotate, so that the two drive rollers 15 rotate through the belt 18 .
  • the curtain assembly is covered on two transmission rollers 15, and the curtain assembly includes a belt 18, a metal plate 19, a writing cloth 20 and a projection cloth 21, and the belt 18 is movable to be set on the sides of the two transmission rollers 15, and one side of the belt 18 is fixedly connected with Metal plate 19, one side of metal plate 19 relative to belt 18 is fixedly connected with writing cloth 20, and projection cloth 21 is fixedly arranged outside writing cloth 20, and projection cloth 21 is positioned at projector 13 just below, and belt 18 is driven by transmission roller 15, thereby drives
  • the overall screen assembly is driven, and the metal plate 19 can be bent, and is electromagnetically attracted to the back plate 17 after it is energized.
  • the writing cloth 20 is mainly written on its surface by an oil-based pen, and the surface of the projection cloth 21 is used for projection by the projector 13.
  • wiping assembly has two groups, and is respectively fixedly arranged on the both sides outside frame 1, and each group of wiping assembly is adjacent to a transmission roller 15 respectively, and wiping assembly is arranged on frame 1 both sides, and writing cloth 20 Wipe the writing on the surface.
  • the wiping assembly includes a bracket 22, a sliding bar 23 and a wiping bar 24.
  • the bracket 22 is fixedly connected to the outer side of the frame 1 and is adjacent to the position of the transmission roller 15.
  • the inside of the bracket 22 is provided with a chute, and the inside of the chute is provided with a sliding bar 23.
  • One side of the slide bar 23 is fixedly connected with a wiper bar 24, the inside of the support 22 is used to carry the slide bar 23, the slide bar 23 can slide inside the support 22, and the wiper bar 24 is used to wipe the oil-based pen writing on the writing cloth 20 surface.
  • wiping strip 24 length is consistent with writing cloth 20 widths, and wiping strip 24 is close to writing cloth 20 one end, because wiping strip 24 lengths are consistent with writing cloth 20 widths, so wiping strip 24 can completely wipe writing cloth 20.
  • one side of the bottom of the frame 1 is fixedly connected with a pen slot 2, the length of the pen slot 2 is consistent with the length of the frame 1, the top of the frame 1 is fixedly connected with an LED screen 4, the top of the LED screen 4 is fixedly connected with the bottom of the connecting frame 5, and the pen slot 2 is used to place oil-based pens, and the LED screen 4 is used to scroll and play slogans related to ideological and political education in the course or the theme of this lesson.
  • the working principle of the present invention is: during the course teaching process, the projector 13 projects the projection picture on the surface of the projection cloth 21, the equipment box 3 energizes the back plate 17, and the back plate 17 magnetically attracts the metal plate 19 inside the curtain assembly, thereby close to the back plate 17.
  • the writing cloth 20 of the board 17 is attached to the surface of the back board 17, and it is convenient to write on the writing cloth 20 after being supported.
  • the back board 17 is powered off, and the second motor 16 drives the left driving roller 15 to rotate to drive writing.
  • the cloth 20 and the projection cloth 21 move left and right to appropriate positions, and at the same time, the first motor 14 drives the screw rod 7 to rotate, and the transmission member 10 drives the projector 13 to move along the moving direction of the projection cloth 21, and project the projection picture completely on the surface of the projection cloth 21.

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  • General Physics & Mathematics (AREA)
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Abstract

高校军事课课程思政的影视歌教学体验器，包括机架（1），机架（1）上方设置有投影组件，且其内部设置有活动组件，活动组件外部固定设置有幕布组件；投影组件包括连接架（5）、丝杆（7）、传动件（10）、支撑臂（11）、连杆（12）以及投影仪（13），连接架（5）位于机架（1）的正上方，连接架（5）相对两侧内壁之间活动设置有丝杆（7），丝杆（7）周侧面活动连接有传动件（10），传动件（10）一侧面与支撑臂（11）固定连接；活动组件包括传动辊（15）以及背板（17），两根传动辊（15）分别活动设置在机架（1）内部两侧，背板（17）固定连接于机架（1）内部。通过投影组件以及活动组件的相互活动配合，使得书写区域不再受到阻挡，并且观看投影内容更加方便直观。

Description

高校军事课课程思政的影视歌教学体验器 技术领域
本发明属于多媒体教学技术领域，特别是涉及高校军事课课程思政的影视歌教学体验器。
背景技术
课程思政指以构建全员、全程、全课程育人格局的形式将各类课程与思想政治理论课同向同行，形成协同效应，把“立德树人”作为教育的根本任务的一种综合教育理念，因此在高校军事课课程思政教育上通常也会采取影视歌教学方式来辅助课程思政教育；高校军事课程中播放相关的影视以及歌曲来多方位地进行课程思政教育，增强学员对课程思政教育的理解以及学习兴趣。
目前的高校军事课课程思政教育中使用到的多媒体教学装置大多还是以投影仪为主，通过播放相关的影视歌来进行教学，现代课程思政教学中需要注意教学方式的互动性和教学内容的丰富性，多媒体教学虽然使得教学内容逐渐丰富，但是教学过程中的互动性略有不足，一般的投影设备固定在黑板上方，需要投影时将投影幕布降下再进行投影，这样遮挡了黑板的书写区域，必须收起幕布才可以进行书写，投影屏幕要么位于黑板中心位置，使得两边的书写区域过小，要么位于黑板一侧，学生观看角度受到阻碍；并且一般的黑板大小有限，使得书写区域也有限，影响了教学质量。
现有的影视歌教学体验装置在投影过程中容易挡住底部黑板的 书写区域，并且对学生的观看角度以及互动性有所阻碍，并且黑板的大小限制了书写区域，影响教学质量，为此我们提出高校军事课课程思政的影视歌教学体验器。
发明内容
本发明的目的在于提供高校军事课课程思政的影视歌教学体验器，解决现有的影视歌教学体验装置在投影过程中容易挡住底部黑板的书写区域，并且对学生的观看角度以及互动性有所阻碍，并且黑板的大小限制了书写区域，影响教学质量的问题。
为解决上述技术问题，本发明是通过以下技术方案实现的：
本发明为高校军事课课程思政的影视歌教学体验器，包括机架，所述机架上方设置有投影组件，且其内部设置有活动组件，所述活动组件外部固定设置有幕布组件机架作为整体教学体验器的主体部分，通过将机架固定安装在墙壁上，以此来完成对教学体验器的安装，机架内部以及其外部用于承载体验器的各个组件；
所述投影组件包括连接架、丝杆、传动件、支撑臂、连杆以及投影仪，所述连接架位于机架的正上方，所述连接架相对两侧内壁之间活动设置有丝杆，所述丝杆周侧面活动连接有传动件，所述传动件一侧面与支撑臂固定连接，所述支撑臂底端与连杆固定连接，所述连杆底端与投影仪固定连接，连接架用于固定在机架上方，丝杆通过旋转带动传动件左右移动，传动件左右移动过程中使得投影仪也可以左右移动，从而与投影布的位置一致，支撑臂用于支撑投影仪并且将其伸出一端距离方便投影到投影布表面，连杆用于连接投影仪，投影仪主 要用于投影，播放相关的影视歌教学内容；
所述活动组件包括传动辊以及背板，两根传动辊分别活动设置在机架内部两侧，机架内部临近一侧与背板固定连接，所述背板的横截面为弧形，传动辊用于传动皮带，背板在通上电后与金属板相互电磁吸引，从而书写布贴合在背板表面，书写有支撑的地方，书写更加方便；
所述幕布组件包覆在两根传动辊上，所述幕布组件包括皮带、金属板、书写布以及投影布，所述皮带活动设置与两根传动辊周侧面，所述皮带一侧面固定连接有金属板，所述金属板相对皮带一侧面与书写布固定连接，所述书写布外侧固定设置投影布，所述投影布位于投影仪的正下方，皮带通过传动辊传动，从而带动整体幕布组件传动，金属板可以弯曲，在背板通电后与其电磁吸引，书写布主要通过油性笔在其表面书写，投影布表面用于投影仪投影。
优选的，所述投影组件还包括固定件、滑轨、滑块以及第一电机，所述连接架内部固定连接有滑轨，所述滑轨上活动连接有滑块，所述滑块顶部与传动件固定连接；两个所述固定件分别固定连接在连接架相对两侧内壁上，两个所述固定件之间通过丝杆活动连接，所述丝杆一端依次贯穿其中一个固定件以及连接架至其外部，且与第一电机输出端固定连接，所述第一电机固定连接在连接架外部，固定件用于连接丝杆，滑轨供其表面的滑块滑动，滑块与顶部的传动件连接后，起到了支撑传动件的作用，由于丝杆较长，且投影仪较重，完全靠传动件支撑的话丝杆容易受压变形，在其底部增添滑块起到支撑的作用， 防止丝杆变形，第一电机用于驱动丝杆旋转。
优选的，所述活动组件还包括第二电机，所述第二电机固定连接在机架底部，所述机架顶部输出端贯穿机架至其内部，且与左侧传动辊底部固定连接，第二电机用于驱动左侧的传动辊旋转，从而两根传动辊通过皮带进行旋转。
优选的，还包括擦拭组件，所述擦拭组件有两组，且分别固定设置在机架外部两侧，每组所述擦拭组件分别临近一根传动辊，擦拭组件设置于机架两侧，对书写布表面的字迹进行擦拭。
优选的，所述擦拭组件包括支架、滑条以及擦拭条，所述支架固定连接在机架外部一侧临近传动辊位置，所述支架内部开设有滑槽，所述滑槽内部活动设置有滑条，所述滑条一侧固定连接有擦拭条，支架内部用于承载滑条，滑条可以在支架内部滑动，擦拭条用于对书写布表面的油性笔字迹进行擦拭。
优选的，所述擦拭条长度与书写布宽度一致，且所述擦拭条临近书写布一端，由于擦拭条长度与书写布宽度一致，因此擦拭条能够完整的对书写布进行擦拭。
优选的，所述机架底部一侧固定连接有笔槽，所述笔槽与机架长度一致，所述机架顶部固定连接有LED屏，所述LED屏顶部与连接架底部固定连接，笔槽用于放置油性笔，LED屏用于滚动播放课程思政教育相关的标语或者本节课的主题。
优选的，所述机架底部固定连接有设备箱，所述设备箱与正上方的背板电性连接，设备箱用于为金属板供电。
本发明具有以下有益效果：
1、本发明通过黑板的书写区域设置为可以进行传动的幕布式结构，通过传动辊的传动，带动书写布旋转传动，一部分书写布位于机架内部，位于机架外部的书写布在书写区域不够时，将位于机架内部的一部分书写布传动至机架外部，从而增加了书写区域，使得教学书写有更强的连贯性，根据教学内容传动书写布，并且将投影布设置于书写布上，需要投影时传动出投影布进行投影，不需要投影时，转动书写布露出大范围区域的书写区域进行书写，提高了书写过程的灵活性以及实用性。
2、本发明中通过设置可以滑动的投影仪，在投影布根据书写布的书写需求左右移动时，投影仪跟随投影布左右滑动，始终将投影画面投射在投影布表面，根据课程中的互动需求，将投影仪以及投影布移动至左右两侧，更加方便左右两侧学生对投影内容进行观看，增强了互动效果，并且投影布移动至左右任意一侧时，使得书写区域合并，并且不影响投影内容的观看；通过投影组件以及活动组件的相互活动配合，使得书写区域不再受到阻挡，并且观看投影内容更加方便直观，同时在室外光线照射区域不同的情况下，通过调整投影的位置，从而避免了投影画面背光的情况，使得投影画面更加清晰。
3、本发明中的背板为弧形板，因此背板通电后与书写布相互吸引贴合，以此投影布为向内凹陷的曲面形状，从而投影布可以有效的收集到投影仪发出的光线，从而避免了投影光线四散的问题，使得投影画面亮度更亮，增加视觉感官效果。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明高校军事课课程思政的影视歌教学体验器的整体结构示意图；
图2为本发明图1中A处放大图；
图3为本发明高校军事课课程思政的影视歌教学体验器的正视结构示意图；
图4为本发明图3中B处放大图；
图5为本发明高校军事课课程思政的影视歌教学体验器的左视剖面结构示意图；
图6为本发明图5中C处放大图；
图7为本发明高校军事课课程思政的影视歌教学体验器的俯视剖面结构示意图；
图8为本发明图7中D处放大图；
图9为本发明高校军事课课程思政的影视歌教学体验器的幕布组件横截面结构示意图；
图10为本发明梯形校正算法流程图。
附图中，各标号所代表的部件列表如下：
1、机架；2、笔槽；3、设备箱；4、LED屏；5、连接架；6、固 定件；7、丝杆；8、滑轨；9、滑块；10、传动件；11、支撑臂；12、连杆；13、投影仪；14、第一电机；15、传动辊；16、第二电机；17、背板；18、皮带；19、金属板；20、书写布；21、投影布；22、支架；23、滑条；24、擦拭条。
具体实施方式
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施方式，进一步阐述本发明。
在本发明的描述中，需要说明的是，术语“上”、“下”、“内”、“外”“前端”、“后端”、“两端”、“一端”、“另一端”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置有”、“连接”等，应做广义理解，例如“连接”，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
参阅图1-10，本发明为高校军事课课程思政的影视歌教学体验器，包括机架1，机架1上方设置有投影组件，且其内部设置有活动 组件，活动组件外部固定设置有幕布组件机架1作为整体教学体验器的主体部分，通过将机架1固定安装在墙壁上，以此来完成对教学体验器的安装，机架1内部以及其外部用于承载体验器的各个组件；
投影组件包括连接架5、丝杆7、传动件10、支撑臂11、连杆12以及投影仪13，连接架5位于机架1的正上方，连接架5相对两侧内壁之间活动设置有丝杆7，丝杆7周侧面活动连接有传动件10，传动件10一侧面与支撑臂11固定连接，支撑臂11底端与连杆12固定连接，连杆12底端与投影仪13固定连接，连接架5用于固定在机架1上方，丝杆7通过旋转带动传动件10左右移动，传动件10左右移动过程中使得投影仪13也可以左右移动，从而与投影布21的位置一致，支撑臂11用于支撑投影仪13并且将其伸出一端距离方便投影到投影布21表面，连杆12用于连接投影仪13，投影仪13主要用于投影，播放相关的影视歌教学内容；
其中，投影组件还包括固定件6、滑轨8、滑块9以及第一电机14，连接架5内部固定连接有滑轨8，滑轨8上活动连接有滑块9，滑块9顶部与传动件10固定连接；两个固定件6分别固定连接在连接架5相对两侧内壁上，两个固定件6之间通过丝杆7活动连接，丝杆7一端依次贯穿其中一个固定件6以及连接架5至其外部，且与第一电机14输出端固定连接，第一电机14固定连接在连接架5外部，固定件6用于连接丝杆7，滑轨8供其表面的滑块9滑动，滑块9与顶部的传动件10连接后，起到了支撑传动件10的作用，由于丝杆7较长，且投影仪13较重，完全靠传动件10支撑的话丝杆7容易受压 变形，在其底部增添滑块9起到支撑的作用，防止丝杆7变形，第一电机14用于驱动丝杆7旋转。
投影仪在安装完毕后需要经过调试，本发明通过梯形校正的方式来进行调试，以此来将投影画面清楚完整的投射在投影布21上，本发明采用双线性内插法对投影画面进行梯形校正，其设一目的的像素点通过坐标变换得到基于原图像的浮点坐标为(i+u，j+v)，其中，i和j均为非负整数，u和v为[0,1]区间的浮点数，则目的地像素的值f(i+u，j+v)可由原图像中坐标为(i，j)、(i+1，j)、(i，j+1)和(i+1，j+1)所对应的4个像素的值来确定，如式(1)所示：
f(i+u，j+v)＝(1-u)*(1-v)*f(i，j)+(1-u)*v*f(i，j+1)+u*(1-v)*f(i+1，j)+u*v*f(i+1，j+1)       (1)
式中，f(i，j)为坐标(i，j)处的像素值。
该算法缩放后图像的质量较高，在调试完毕后可以适用于本发明中的投影上，且在投影仪13移动时位于同一水平线上，不需要调节画面，只需在安装过程中调节即可。
活动组件包括传动辊15以及背板17，两根传动辊15分别活动设置在机架1内部两侧，机架1内部临近一侧与背板17固定连接，传动辊15用于传动皮带18，背板17在通上电后与金属板19相互电磁吸引，从而书写布20贴合在背板17表面，书写有支撑的地方，书写更加方便；
其中机架1底部固定连接有设备箱3，设备箱3与正上方的背板17电性连接，设备箱3用于为金属板19供电。
其中，活动组件还包括第二电机16，第二电机16固定连接在机架1底部，机架1顶部输出端贯穿机架1至其内部，且与左侧传动辊15底部固定连接，第二电机16用于驱动左侧的传动辊15旋转，从而两根传动辊15通过皮带18进行旋转。
幕布组件包覆在两根传动辊15上，幕布组件包括皮带18、金属板19、书写布20以及投影布21，皮带18活动设置与两根传动辊15周侧面，皮带18一侧面固定连接有金属板19，金属板19相对皮带18一侧面与书写布20固定连接，书写布20外侧固定设置投影布21，投影布21位于投影仪13的正下方，皮带18通过传动辊15传动，从而带动整体幕布组件传动，金属板19可以弯曲，在背板17通电后与其电磁吸引，书写布20主要通过油性笔在其表面书写，投影布21表面用于投影仪13投影。
其中，还包括擦拭组件，擦拭组件有两组，且分别固定设置在机架1外部两侧，每组擦拭组件分别临近一根传动辊15，擦拭组件设置于机架1两侧，对书写布20表面的字迹进行擦拭。
其中，擦拭组件包括支架22、滑条23以及擦拭条24，支架22固定连接在机架1外部一侧临近传动辊15位置，支架22内部开设有滑槽，滑槽内部活动设置有滑条23，滑条23一侧固定连接有擦拭条24，支架22内部用于承载滑条23，滑条23可以在支架22内部滑动，擦拭条24用于对书写布20表面的油性笔字迹进行擦拭。
其中，擦拭条24长度与书写布20宽度一致，且擦拭条24临近书写布20一端，由于擦拭条24长度与书写布20宽度一致，因此擦 拭条24能够完整的对书写布20进行擦拭。
其中，机架1底部一侧固定连接有笔槽2，笔槽2与机架1长度一致，机架1顶部固定连接有LED屏4，LED屏4顶部与连接架5底部固定连接，笔槽2用于放置油性笔，LED屏4用于滚动播放课程思政教育相关的标语或者本节课的主题。
本发明的工作原理为：课程教学过程中，投影仪13将投影画面投射在投影布21表面，设备箱3为背板17通电，背板17磁性吸引幕布组件内部的金属板19，从而临近背板17的书写布20贴合在背板17表面，有了支撑后方便在书写布20上书写，互动时，背板17断电，通过第二电机16驱动左侧传动辊15转动，带动书写布20以及投影布21左右移动至适当位置，同时第一电机14带动丝杆7旋转，传动件10带动投影仪13跟随投影布21移动方向移动，并将投影画面完全投射在投影布21表面。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (8)

  1. 高校军事课课程思政的影视歌教学体验器，包括机架(1)，其特征在于：所述机架(1)上方设置有投影组件，且其内部设置有活动组件，所述活动组件外部固定设置有幕布组件；
    所述投影组件包括连接架(5)、丝杆(7)、传动件(10)、支撑臂(11)、连杆(12)以及投影仪(13)，所述连接架(5)位于机架(1)的正上方，所述连接架(5)相对两侧内壁之间活动设置有丝杆(7)，所述丝杆(7)周侧面活动连接有传动件(10)，所述传动件(10)一侧面与支撑臂(11)固定连接，所述支撑臂(11)底端与连杆(12)固定连接，所述连杆(12)底端与投影仪(13)固定连接；
    所述活动组件包括传动辊(15)以及背板(17)，两根传动辊(15)分别活动设置在机架(1)内部两侧，机架(1)内部临近一侧与背板(17)固定连接，所述背板(17)的横截面为弧形；
    所述幕布组件包覆在两根传动辊(15)上，所述幕布组件包括皮带(18)、金属板(19)、书写布(20)以及投影布(21)，所述皮带(18)活动设置与两根传动辊(15)周侧面，所述皮带(18)一侧面固定连接有金属板(19)，所述金属板(19)相对皮带(18)一侧面与书写布(20)固定连接，所述书写布(20)外侧固定设置投影布(21)，所述投影布(21)位于投影仪(13)的正下方。
  2. 根据权利要求1所述的高校军事课课程思政的影视歌教学体验器，其特征在于，所述投影组件还包括固定件(6)、滑轨(8)、滑块(9)以及第一电机(14)，所述连接架(5)内部固定连接有滑轨(8)，所述滑轨(8)上活动连接有滑块(9)，所述滑块(9)顶部与 传动件(10)固定连接；两个所述固定件(6)分别固定连接在连接架(5)相对两侧内壁上，两个所述固定件(6)之间通过丝杆(7)活动连接，所述丝杆(7)一端依次贯穿其中一个固定件(6)以及连接架(5)至其外部，且与第一电机(14)输出端固定连接，所述第一电机(14)固定连接在连接架(5)外部。
  3. 根据权利要求2所述的高校军事课课程思政的影视歌教学体验器，其特征在于，所述活动组件还包括第二电机(16)，所述第二电机(16)固定连接在机架(1)底部，所述机架(1)顶部输出端贯穿机架(1)至其内部，且与左侧传动辊(15)底部固定连接。
  4. 根据权利要求3所述的高校军事课课程思政的影视歌教学体验器，其特征在于，还包括擦拭组件，所述擦拭组件有两组，且分别固定设置在机架(1)外部两侧，每组所述擦拭组件分别临近一根传动辊(15)。
  5. 根据权利要求4所述的高校军事课课程思政的影视歌教学体验器，其特征在于，所述擦拭组件包括支架(22)、滑条(23)以及擦拭条(24)，所述支架(22)固定连接在机架(1)外部一侧临近传动辊(15)位置，所述支架(22)内部开设有滑槽，所述滑槽内部活动设置有滑条(23)，所述滑条(23)一侧固定连接有擦拭条(24)。
  6. 根据权利要求5所述的高校军事课课程思政的影视歌教学体验器，其特征在于，所述擦拭条(24)长度与书写布(20)宽度一致，且所述擦拭条(24)临近书写布(20)一端。
  7. 根据权利要求6所述的高校军事课课程思政的影视歌教学体 验器，其特征在于，所述机架(1)底部一侧固定连接有笔槽(2)，所述笔槽(2)与机架(1)长度一致，所述机架(1)顶部固定连接有LED屏(4)，所述LED屏(4)顶部与连接架(5)底部固定连接。
  8. 根据权利要求7所述的高校军事课课程思政的影视歌教学体验器，其特征在于，所述机架(1)底部固定连接有设备箱(3)，所述设备箱(3)与正上方的背板(17)电性连接。
PCT/CN2021/142697 2021-12-29 2021-12-29 高校军事课课程思政的影视歌教学体验器 WO2023123124A1 (zh)

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