High-quality teaching system

Abstract

The invention discloses a high-quality teaching system which comprises an integrated support which is hung on a ceiling, a control shaft is integrated on the integrated support, the bottom of the control shaft is connected with a projector shell, the high-quality teaching system further comprises a teaching blackboard, a follow-up display structure is arranged on the teaching blackboard, and the follow-up display structure is connected with the projector shell. A following adjusting structure is arranged between the control shaft and the integrated support. The invention relates to the technical field of teaching, according to the high-quality teaching system, through spatial reconstruction and intelligent collaborative design, the problem of spatial conflict between traditional multimedia equipment and a blackboard is thoroughly solved, the integrated support realizes projection and sound equipment aerial integrated layout, and the wall space is remarkably released; the movable blackboard system and the automatic tracking projection cooperatively operate, so that a projection picture is adaptive to a blackboard writing area in real time; the modular design greatly improves the equipment deployment efficiency, a teacher can realize seamless switching of'blackboards, namely screens' without manual adjustment, and a highly flexible and space-intensive teaching environment is constructed.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching and learning, and in particular to a high-quality teaching and learning system. Background Art

[0002] In the modern teaching process, in order to enable students to listen to lectures better, a teaching system that improves teaching effectiveness in the form of multimedia has emerged at this stage. Especially in the teaching system of university courses, the multimedia teaching system can improve the user experience of the teaching teachers.

[0003] Common multimedia teaching systems are mainly divided into two forms: audio and video. Common equipment combinations are mainly control terminals, projectors and audio. In the current multimedia teaching systems, projectors and audio are set up separately, so the positioning and construction work required during construction is large and inconvenient.

[0004] In summary, the current mainstream multimedia teaching systems generally adopt a separate architecture of "projector + screen + audio". This technical solution exposes multiple contradictions in actual application. Taking the electric lifting screen system represented by patent CN107065403A as an example, although its design realizes the automatic storage of the screen, in actual teaching scenarios, the vertical coverage area of ​​the screen after unfolding reaches more than 65% of the total area of ​​the blackboard (measured based on a standard 3.6-meter-wide blackboard). Moreover, when explaining knowledge points, teachers often need to frequently switch between projected content display and blackboard writing, resulting in a loss of about 8-12 minutes of effective teaching time in a single class. What is more serious is that the visual occlusion area formed after the screen is lowered forces the teacher to write sideways, causing more than 30% of the blackboard content to be in the students' blind spot, which directly affects the continuity of knowledge transfer.

[0005] Furthermore, existing technical solutions often fall into the design error of "function superposition" when solving the spatial contradiction between equipment and blackboard, and fail to fundamentally reconstruct the spatial logic of the teaching system. For example, although the double-layer lifting mechanism proposed in patent CN112130418A realizes the alternating use of screen and blackboard, the complexity of its mechanical structure increases the failure rate and maintenance costs; these defects highlight the shortcomings of the existing system in adaptability to core teaching scenarios: projection equipment should not be the opposite of blackboard, but should be an organic whole that can operate in coordination. The design of the new system must break through the traditional mindset and, through spatial dimension reconstruction and equipment form innovation, enable multimedia equipment to truly serve the effective delivery of teaching content rather than the competition for physical space. In view of this, in-depth research on the above issues led to the emergence of this case. Summary of the Invention

[0006] In view of the deficiencies of the existing technology, the present invention provides a high-quality teaching system and solves the existing background technology problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-quality teaching system, including an integrated bracket, the integrated bracket is hoisted on the ceiling, the integrated bracket is integrated with a control shaft, the bottom of the control shaft is connected to a projector housing, and also includes a teaching blackboard, the teaching blackboard is provided with a follow-up display structure, and a follow-up adjustment structure is provided between the control shaft and the integrated bracket;

[0008] The projector housing is integrated with a projection lens assembly, and a plurality of speakers are arranged around the projector housing;

[0009] The teaching blackboard includes a blackboard frame, which is fixed on a vertical wall. A pair of horizontal guide rails are provided on both sides of the blackboard frame. A pair of vertical guide rails are staggered on the pair of horizontal guide rails. Three blackboards are provided on the blackboard frame, wherein a pair of blackboards are staggeredly connected to one vertical guide rail frame, and another blackboard is staggeredly connected to another vertical guide rail frame with a follow-up display structure.

[0010] The tracking adjustment structure includes a horizontal rotation assembly, which is mounted on the integrated bracket and is used to adjust the horizontal orientation of the projection lens assembly. The horizontal rotation assembly is connected to a vertical adjustment assembly, which is used to adjust the vertical angle of the projection lens assembly. The vertical adjustment assembly is connected to the control shaft.

[0011] The following display structure is provided with an emission source, and the projector housing is provided with a detector. The detector detects the position of the emission source and controls the vertical adjustment component and the horizontal rotation component to adjust the projection lens component and the following display structure to move synchronously.

[0012] The integrated bracket is an aluminum alloy frame structure, the top of the integrated bracket is a support frame with a rectangular frame structure, the middle section of the integrated bracket is provided with a control integrated box, the horizontal rotation component and the vertical adjustment component are both integrated in the control integrated box, the control shaft extends from the control integrated box, and the control shaft is connected to the top of the projector housing by a number of bolts.

[0013] The projector housing is a cavity housing with a rectangular structure. Two pairs of connecting screws are fixedly arranged on the top of the projector housing. A plurality of card slots are evenly distributed at the four corners of the projector housing, and a plurality of speakers are card-mounted on the card slots.

[0014] The emission source is an infrared LED matrix, the detector is a multi-quadrant photoelectric detector, one end of the detector is connected to a motion controller, and the motion controller controls the movement of the horizontal rotation component and the vertical adjustment component.

[0015] A pair of vertical motion gears are arranged in the vertical guide rail frame, and a pair of vertical motion racks are respectively arranged on both sides of the blackboard and the follow-up display structure. The pair of vertical motion racks are respectively engaged with a pair of vertical motion gears. A pair of horizontal motion gears are respectively arranged on the pair of horizontal guide rails. Two pairs of horizontal motion racks are arranged on the pair of vertical guide rail frames. The two pairs of horizontal motion racks are respectively engaged with a pair of horizontal motion gears.

[0016] The follow-up display structure includes a display frame, which is mounted on a vertical guide rail frame. The display frame is provided with a flip axis, a socket is provided in the middle of the flip axis, and the display screen is inserted into the socket. A locking buckle is provided on one side of the socket, and the locking buckle is engaged with the display screen. A writing board is integrated on the back of the display screen, and an expansion component is provided on one side of the display screen.

[0017] The unfolding assembly includes a folding plate. An unfolding slot is provided on one side of the display screen. The folding plate is hinged on the unfolding slot. The folding plate and the unfolding slot are connected by a lock.

[0018] The writing board and the display screen can be reversed by controlling a flip axis. A pair of card slots are provided on both sides of the display screen, and both of the card slots can be matched with locking buckles.

[0019] The horizontal rotation assembly includes a horizontal control motor, which is installed in a control integrated box. The driving end of the horizontal control motor is connected to a driving gear, and a rotating gear is meshed with one side of the driving gear. The driving gear is meshed with the rotating gear. The rotating gear and the driving gear are installed on an adjusting dial. A rotating seat is provided on the adjusting dial. The rotating seat is connected to the rotating gear, and the rotating seat is connected to the control shaft. A pair of pins are provided on both sides of the adjusting dial and installed in the control integrated box.

[0020] The vertical adjustment assembly includes a vertical control motor, which is installed in a control integrated box. An adjustment worm is connected to the driving end of the vertical control motor. A missing arc worm wheel is provided at the bottom of the adjustment dial, and the missing arc worm wheel is engaged with the adjustment worm.

[0021] Beneficial effects

[0022] The present invention provides a high-quality teaching system. It has the following beneficial effects: Through spatial reconstruction and intelligent collaborative design, this high-quality teaching system completely resolves the spatial conflict between traditional multimedia equipment and the blackboard. The integrated bracket enables an integrated aerial layout of projection and audio, significantly freeing up wall space. The movable blackboard system works in conjunction with the automatic tracking projection, allowing the projected image to adapt to the blackboard area in real time. The modular design significantly improves equipment deployment efficiency, enabling teachers to seamlessly switch between the "blackboard and screen" without manual adjustments, creating a highly flexible and space-efficient new teaching environment. Furthermore, the system offers the following advantages:

[0023] 1. The integrated bracket adopts a ceiling hanging structure, integrating the projector housing, surround sound and other equipment in the air. The lightweight design of the bracket combined with standardized interfaces significantly shortens the installation time without damaging the wall structure. High-precision projection calibration technology ensures that the image is accurately projected onto the mobile blackboard area, and the wall is completely reserved for blackboard writing, greatly improving the utilization rate of teaching space.

[0024] 2. The movable blackboard unit achieves multi-dimensional displacement through a precision guide rail system. Teachers can quickly switch between the projection display area and the blackboard area. The display screen integrates a flip mechanism and an extended folding board, supporting instant conversion between digital content and traditional blackboard writing. Unfolding the folding board can greatly expand the projection area. Combined with the blackboard displacement, a multi-screen teaching mode is formed, which can flexibly adapt to the needs of various teaching scenarios.

[0025] 3. The highly sensitive positioning system senses the position of the display unit in real time, and drives the projected image to automatically align through a multi-axis linkage adjustment mechanism. Dynamic tracking technology ensures that the image accurately covers the display area. When the teacher moves the blackboard, the projection follows immediately, completely eliminating the manual calibration process. The adaptive control system can operate sustainably and stably, significantly reducing the frequency of classroom operation interruptions.

[0026] 4. Surround sound and high-definition projection create an immersive teaching scene, significantly improving students' attention. The intelligent linkage mechanism of the equipment compresses multimedia preparation time to an extremely short time, allowing teachers to focus on teaching content rather than equipment operation, achieving a qualitative leap in classroom teaching efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a first three-dimensional structural diagram of a high-quality teaching system described in the present invention.

[0028] Figure 2 This is a side structural schematic diagram of a high-quality teaching system described in the present invention.

[0029] Figure 3 This is a second three-dimensional structural diagram of a high-quality teaching system described in the present invention.

[0030] Figure 4This is a third three-dimensional structural schematic diagram of a high-quality teaching system described in the present invention.

[0031] Figure 5 This is a schematic diagram of the partial three-dimensional structure of a high-quality teaching system described in the present invention.

[0032] Figure 6 This is a partially enlarged structural schematic diagram of a high-quality teaching system described in the present invention.

[0033] Figure 7 This is a schematic diagram of the follow-up display structure of a high-quality teaching system described in the present invention.

[0034] Figure 8 This is a schematic diagram of the follow-up adjustment structure of a high-quality teaching system described in the present invention.

[0035] Figure 9 This is a partial cross-sectional structural diagram of a high-quality teaching system described in the present invention.

[0036] In the figure: 1. Integrated bracket; 2. Projector housing; 3. Teaching blackboard; 4. Follow-up display structure; 5. Follow-up adjustment structure; 11. Control shaft; 12. Control integrated box; 21. Projection lens assembly; 22. Speaker; 23. Detector; 24. Card slot; 25. Connecting screw; 31. Blackboard frame; 32. Horizontal guide rail; 33. Vertical guide rail frame; 34. Blackboard for writing; 35. Vertical motion gear; 36. Vertical motion rack; 37. Horizontal motion gear; 38. Horizontal motion rack; 39. Emission source; 41. Display frame; 42. Flip axis; 43. Socket; 44. Locking buckle; 45. Writing board; 46. Unfolding assembly; 51. Horizontal rotation assembly; 52. Vertical adjustment assembly; 461. Folding plate; 462. Unfolding slot; 463. Locking buckle; 511. Horizontal control motor; 512. Driving gear; 513. Rotating gear; 514. Adjusting turntable; 515. Rotating seat; 516. Pin shaft; 521. Vertical control motor; 522. Adjusting worm; 523. Arc-missing worm gear. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figure 1-9The present invention provides an implementation scheme: In the modern teaching process, most multimedia teaching methods adopt a separate structure of "projector + screen + audio", which is not only complex in structure and inconvenient to install, but also prone to conflicts between the projection screen and the blackboard. When solving the spatial contradiction between the equipment and the blackboard, the existing technical solutions often fall into the design misunderstanding of "function superposition" and fail to fundamentally reconstruct the spatial logic of the teaching system. These defects highlight the shortcomings of the existing system in adaptability to core teaching scenarios: the projection equipment should not be the opposite of the blackboard, but should become an organic whole that can operate collaboratively.

[0039] According to the instruction manual Figure 1-9 It can be seen that in order to solve the above problems, the present application discloses a high-quality teaching system, including an integrated bracket 1, a control shaft 11, a projector housing 2, a teaching blackboard 3 and a linkage control system. The above-mentioned integrated bracket 1 is welded into a rectangular frame structure using 6063-T5 aluminum alloy profiles, and its top support frame is rigidly connected to the building ceiling through expansion bolts. The integrated bracket 1 serves as the core bearing structure of the system, and achieves lifting stability through lightweight design, while providing precise positioning reference for each functional module.

[0040] Furthermore, a control shaft 11 is connected to the control integrated box 12 and extends vertically from the control integrated box 12 using a hollow stainless steel tube. A follow-up adjustment structure 5 is arranged between the control shaft 11 and the integrated bracket 1. The follow-up adjustment structure 5 includes a horizontal rotation component 51 and a vertical adjustment component 52. The horizontal rotation component 51 and the vertical adjustment component 52 are integrated in the control integrated box 12 in the middle section of the integrated bracket 1. The bottom of the control shaft 11 is connected to the projector housing 2, and its bottom flange is connected to the top of the projector housing 2 to form a rigid force transmission path.

[0041] Specifically, according to the instructions Figure 1-9 It can be seen that the above-mentioned projector housing 2 is a 6061 aluminum alloy die-cast cavity shell. The connecting screw 25 on the top of the projector housing 2 is precisely matched with the flange of the control shaft 11 to ensure that the verticality error of the projection optical axis is ≤0.1°; the standardized dovetail groove structure slots 24 are set at the four corners of the projector housing 2, and at least 4 groups of full-band speakers 22 are quickly installed through elastic buckles to form a surround sound field layout. The projection lens assembly 21 is embedded in the front end of the housing and is equipped with an electric zoom module with a zoom ratio of 1.5:1 and an automatic focus sensor to ensure that the projected image maintains high-definition image quality within a projection distance of 3-8m. When the system is running, the sound field coverage angle of the speaker 22 reaches 120°, forming an audio-visual space synchronization with the projected image.

[0042] According to the instruction manual Figure 1-9 It can be seen that the high-quality teaching system also includes a teaching blackboard 3, on which a follow-up display structure 4 is provided. The teaching blackboard 3 system is composed of a blackboard frame 31, a guide rail assembly and an intelligent display unit.

[0043] Specifically, the blackboard frame 31 is formed by bending cold-rolled steel plates with a thickness of 1 to 1.5 mm. It is fixed to the wall by anchor bolts. Linear bearings are embedded in the horizontal guide rails 32 on both sides of the blackboard frame 31, integrating the three blackboards 34 and the follow-up display structure 4 into an integral blackboard system. The external frames of the three blackboards 34 and the follow-up display structure 4 in the blackboard system are of the same specifications. The four frames of the same specifications are respectively set on a pair of vertical guide rail frames 33. The blackboard 34 and the follow-up display structure 4 on the same vertical guide rail frame 33 can be raised and lowered in the vertical guide rail frame 33 by the vertical motion gear 35. The vertical guide rail frame 33 realizes lateral movement by engaging with the guide rack through the horizontal motion gear 37. The mechanical transmission system makes the blackboard unit movement positioning accuracy reach ±1mm. The teacher can switch the blackboard / projection area through simple lifting and translation operations.

[0044] According to the instruction manual Figure 1-9 As can be seen, the tracking adjustment structure 5 achieves automatic projection tracking through precise electromechanical coordination. The tracking adjustment structure 5 is composed of a horizontal rotation component 51 and a vertical adjustment component 52. The horizontal rotation component 51 adjusts the horizontal orientation angle of the control axis 11, and the vertical adjustment component 52 adjusts the vertical pitch angle of the control axis 11. The control axis 11 then drives the projector housing 2 to adjust to match the position and orientation of the tracking display structure 4.

[0045] According to the instruction manual Figure 1-9 It can be seen that the horizontal rotation assembly 51 includes a horizontal control motor 511, which is installed in the control integrated box 12. The driving end of the horizontal control motor 511 is connected to a driving gear 512. A rotating gear 513 is meshed with one side of the driving gear 512. The driving gear 512 meshes with the rotating gear 513. The rotating gear 513 and the driving gear 512 are installed on an adjusting dial 514. A rotating seat 515 is provided on the adjusting dial 514. The rotating seat 515 is connected to the rotating gear 513. The rotating seat 515 is connected to the control shaft 11. A pair of pins 516 are provided on both sides of the adjusting dial 514 and installed in the control integrated box 12.

[0046] During the specific implementation process, the horizontal control motor 511 drives the precision planetary gearbox, which has a built-in driving gear 512 and a rotating gear 513. The engagement of the driving gear 512 and the rotating gear 513 drives the rotating seat 515 on the adjustment dial 514 to rotate horizontally. The rotating seat 515 is connected to the control shaft 11, and drives the projector housing 2 to rotate horizontally through the control shaft 11.

[0047] According to the instruction manual Figure 1-9It can be seen that the above-mentioned vertical adjustment component 52 includes a vertical control motor 521, which is installed in the control integrated box 12. The driving end of the vertical control motor 521 is connected to an adjusting worm 522, and a missing arc worm gear 523 is provided at the bottom of the adjustment dial 514. The missing arc worm gear 523 is engaged with the adjusting worm 522. The vertical control motor 521 drives the adjusting worm 522 to rotate, so that the adjusting worm 522 is engaged with the missing arc worm gear 523 to achieve -15° to +15° pitch adjustment. When the two axes are linked, the vertical control motor 521 and the horizontal control motor 511 are both servo motors, and the 0.05° step angle combined with the harmonic reducer can achieve a dynamic tracking accuracy of the projection optical axis of 0.1mm.

[0048] According to the instruction manual Figure 1-9 It can be seen that the above-mentioned follower display structure 4 includes a display frame 41, which is installed on the vertical guide rail frame 33. A flip axis 42 is provided on the display frame 41, and the flip axis 42 is installed on the vertical guide rail frame 33. A socket 43 is provided in the middle of the flip axis 42, and the display screen is inserted into the socket 43. A locking buckle 44 is provided on the corresponding side of the socket 43, and the locking buckle 44 is connected to the display screen. A writing board 45 is integrated on the back of the display screen, and an unfolding component 46 is provided on one side of the display screen.

[0049] During the specific implementation process, the flip axis 42 on the display frame 41 can rotate horizontally, the flip axis 42 is plug-connected to the display screen, the display screen is inserted into the socket 43, the display screen and the flip axis 42 can rotate horizontally, and are locked with the display screen through the locking buckle 44 on the display frame 41. The display screen and the writing board 45 are opposite to each other. When the display screen is not in use, the display screen can be pulled out, and then the flip axis 42 can be used to flip the display screen so that the writing board 45 faces the students. When blackboard writing is needed, the teacher triggers the locking buckle 44 to flip the screen to the writing board 45 mode, unfolds the folding board 461 to expand the teaching space, and realizes the seamless connection between digital content and traditional blackboard writing.

[0050] Then, the following adjustment structure 5 achieves the effect of following the movement of the display structure 4 through multimodal sensing. The emission source 39 adopts a 5×5 infrared LED matrix with a wavelength of 850nm and a power of 0.5W, and emits a coded light signal at a frequency of 100Hz. The detector 23 is a four-quadrant silicon photodiode array with a sensitivity of 0.55A / W. The X / Y axial deviation signal is analyzed by a differential amplifier circuit. When the display screen moves, the motion controller adopts the STM32F407 main control to solve the position offset in real time, generate PWM pulses to drive the horizontal or vertical motor to compensate for the displacement, so that the deviation between the center of the projection picture and the display screen is always ≤3mm. The response time of the closed-loop control system is <50ms, ensuring that the projection picture automatically follows when the teacher moves the blackboard unit without manual intervention.

[0051] According to the instruction manual Figure 1-9 It can be seen that the unfolding component 46 includes a folding plate 461, and an unfolding slot 462 is opened on one side of the display screen. The folding plate 461 is hinged on the unfolding slot 462. The folding plate 461 and the unfolding slot 462 are connected by a lock 463. When there is too much projection content, the teacher can occupy a part of the area of ​​the blackboard 34 for writing on the blackboard. By unlocking the lock 463, the folding plate 461 can be unfolded from the unfolding slot 462. The inner and outer surfaces of the folding plate 461 are both made of screen material suitable for projection, and the inner wall of the unfolding slot 462 is also made of screen material. In this way, when the folding plate 461 is unfolded, the projection can be expanded.

[0052] In summary, this high-quality teaching system, through spatial reconstruction, embeds the projection screen into the blackboard system, improves the integration of the projection system, and completely solves the device conflict problem:

[0053] The integrated bracket 1 can be used to integrate the projection and audio equipment in the air, freeing up wall space. There is no need to position the wall, making installation and maintenance easier and improving the integration of the equipment.

[0054] The guide rail linkage mechanism enables the blackboard unit to move horizontally and vertically, providing a dedicated display area for the projection image. The projection screen is combined with the blackboard, and the interchangeable effect of the projection screen and the blackboard is utilized. The position of the projection screen can be flexibly adjusted without affecting the writing on the blackboard, making it convenient for students to observe and use.

[0055] The automatic tracking system eliminates manual adjustment steps. When the teacher moves the blackboard, the projection screen follows and aligns in real time, which shortens the deployment time of multimedia equipment. The teacher can use the blackboard more flexibly without having to worry about the space problem of the projection equipment.

[0056] Through the above points, the efficiency of classroom teaching is improved, and the new teaching space paradigm where the blackboard is the screen is perfectly realized.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-quality teaching system, comprising an integrated bracket (1), wherein the integrated bracket (1) is suspended on a ceiling, a control shaft (11) is integrated on the integrated bracket (1), and a projector housing (2) is connected to the bottom of the control shaft (11), characterized in that: It also includes a teaching blackboard (3), wherein a follow-up display structure (4) is provided on the teaching blackboard (3), and a follow-up adjustment structure (5) is provided between the control shaft (11) and the integrated bracket (1); A projection lens assembly (21) is integrated on the projector housing (2), and a plurality of speakers (22) are arranged around the projector housing (2); The teaching blackboard (3) includes a blackboard frame (31), the blackboard frame (31) is fixed on a vertical wall, a pair of horizontal guide rails (32) are provided on both sides of the blackboard frame (31), a pair of vertical guide rail frames (33) are staggered on the pair of horizontal guide rails (32), and three blackboards (34) are provided on the blackboard frame (31), wherein a pair of blackboards (34) are staggeredly connected to one vertical guide rail frame (33), and another blackboard (34) is staggeredly connected to another vertical guide rail frame (33) with a follow-up display structure (4); The following adjustment structure (5) includes a horizontal rotation component (51), the horizontal rotation component (51) is mounted on the integrated bracket (1) and is used to adjust the horizontal orientation of the projection lens component (21), the horizontal rotation component (51) is connected to a vertical adjustment component (52), the vertical adjustment component (52) is used to adjust the vertical angle of the projection lens component (21), and the vertical adjustment component (52) is connected to the control shaft (11); The following display structure (4) is provided with an emission source (39), and the projector housing (2) is provided with a detector (23). The detector (23) detects the orientation of the emission source (39) and controls the vertical adjustment component (52) and the horizontal rotation component (51) to adjust the projection lens component (21) and the following display structure (4) to move synchronously.

2. A high-quality teaching system according to claim 1, characterized in that: The integrated bracket (1) is an aluminum alloy frame structure. The top of the integrated bracket (1) is a support frame with a rectangular frame structure. A control integrated box (12) is provided in the middle section of the integrated bracket (1). The horizontal rotation component (51) and the vertical adjustment component (52) are both integrated in the control integrated box (12). The control shaft (11) extends from the control integrated box (12). The control shaft (11) is connected to the top of the projector housing (2) via a plurality of bolts.

3. A high-quality teaching system according to claim 2, characterized in that: The projector housing (2) is a hollow housing with a rectangular structure. Two pairs of connecting screws (25) are fixedly provided on the top of the projector housing (2). A plurality of card slots (24) are evenly distributed at the four corners of the projector housing (2), and a plurality of speakers (22) are card-mounted on the plurality of card slots (24).

4. A high-quality teaching system according to claim 3, characterized in that: The emission source (39) is an infrared LED matrix, the detector (23) is a multi-quadrant photoelectric detector (23), one end of the detector (23) is connected to a motion controller, and the motion controller controls the movement of the horizontal rotation component (51) and the vertical adjustment component (52).

5. A high-quality teaching system according to claim 4, characterized in that: A pair of vertical motion gears (35) are provided in the vertical guide rail frame (33); a pair of vertical motion racks (36) are provided on both sides of the blackboard (34) and the follow-up display structure (4); the pair of vertical motion racks (36) are respectively engaged with the pair of vertical motion gears (35); a pair of horizontal motion gears (37) are respectively provided on the pair of horizontal guide rails (32); two pairs of horizontal motion racks (38) are provided on the pair of vertical guide rail frames (33); the two pairs of horizontal motion racks (38) are respectively engaged with the pair of horizontal motion gears (37).

6. A high-quality teaching system according to claim 5, characterized in that: The follow-up display structure (4) includes a display frame (41), which is mounted on a vertical guide rail frame (33). A flip shaft (42) is provided on the display frame (41), a socket (43) is provided in the middle of the flip shaft (42), and the display screen is inserted into the socket (43). A locking buckle (44) is provided on one side of the socket (43), and the locking buckle (44) is connected to the display screen. A writing board (45) is integrated on the back of the display screen, and an unfolding component (46) is provided on one side of the display screen.

7. A high-quality teaching system according to claim 6, characterized in that: The writing board (45) and the display screen can be controlled to be reversed by a flip shaft (42), and a pair of card slots (24) are provided on both sides of the display screen, and the pair of card slots (24) can be matched with the locking buckle (44).

8. A high-quality teaching system according to claim 7, characterized in that: The horizontal rotation assembly (51) comprises a horizontal control motor (511), the horizontal control motor (511) being installed in a control integrated box (12), a driving end of the horizontal control motor (511) being connected to a driving gear (512), a rotating gear (513) being provided on one side of the driving gear (512), the driving gear (512) being meshed with the rotating gear (513), the rotating gear (513) and the driving gear (512) being installed on an adjusting dial (514), a rotating seat (515) being provided on the adjusting dial (514), the rotating seat (515) being connected to the rotating gear (513), the rotating seat (515) being connected to the control shaft (11), and a pair of pins (516) being provided on both sides of the adjusting dial (514) being installed in the control integrated box (12).

9. A high-quality teaching system according to claim 8, characterized in that: The vertical adjustment assembly (52) includes a vertical control motor (521), which is installed in a control integrated box (12). An adjustment worm (522) is connected to a driving end of the vertical control motor (521). A missing arc worm gear (523) is provided at the bottom of the adjustment dial (514), and the missing arc worm gear (523) is engaged with the adjustment worm gear (522).

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