Electronic pen for teaching specimen model explanation

Abstract

The invention relates to the technical field of teaching appliances, in particular to an electronic pen for teaching specimen model explanation, which comprises a projector, a teaching system for collecting images and transmitting the images to the projector, and a pen shell, the pen shell is provided with a specimen model collecting assembly used for collecting specimen model images. The specimen model acquisition assembly comprises a cylindrical block, one side of the cylindrical block is rotatably matched with a central column, and the other side of the cylindrical block is fixedly connected with a first camera; a transverse adjusting assembly used for driving the cylindrical block to transversely rotate and then driving the first camera to transversely rotate is arranged at the bottom of the cylindrical block. The side, away from the cylindrical block, of the central column is fixedly connected with a hemispherical block, and the side, away from the central column, of the hemispherical block is fixedly connected with a second camera. The central column is provided with a vertical adjusting assembly which is used for driving the hemispherical block to rotate vertically and then driving the second camera to rotate vertically. The system is complete in function, and can improve the teaching effect.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching tools, in particular to an electronic pen for explaining teaching specimen models. Background Art

[0002] Using specimen models for teaching with an electronic pen can significantly improve classroom interactivity and teaching effectiveness, allowing students to grasp relevant knowledge more intuitively and clearly. However, in the process of using specimen models for teaching, due to the large number of students, some students may not be able to see the specimen models and the teaching process, affecting the teaching effect.

[0003] The electronic pens in the prior art often have a camera installed on the electronic pen. The teaching staff uses the camera to identify the image of the specimen model, and then transmits it to the projector for projection for students to watch and learn, thereby improving the teaching effect. However, since the cameras on the electronic pens in the prior art are all fixedly installed, the position and angle of the camera cannot be adjusted. As a result, when the camera captures the image of the specimen model, the teaching staff needs to constantly adjust the rotation angle and tilt angle of the electronic pen in order to capture a complete specimen model image, which is not conducive to teaching.

[0004] In summary, solving the existing problem of electronic pens requiring instructors to constantly adjust the pen's angle to capture complete specimen model images, hindering teaching, has become a pressing challenge in the field. Therefore, it is necessary to develop an electronic pen for teaching specimen models that can more automatically adjust the camera's position and angle. Summary of the Invention

[0005] To solve the above problems, the present invention provides an electronic pen for explaining teaching specimen models. Through the design of a horizontal adjustment component and a vertical adjustment component, the device can more conveniently and comprehensively capture images of specimen models, without the need for teaching staff to repeatedly adjust the rotation angle and tilt angle of the electronic pen, thereby improving the efficiency of image acquisition, thereby reducing the teaching difficulty of teaching staff and improving teaching efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: an electronic pen for explaining teaching specimen models, comprising a projector, a teaching system for collecting specimen model images and transmitting the specimen model images to the projector, and a pen housing; a specimen model acquisition component for acquiring specimen model images is provided on the pen housing.

[0007] The specimen model acquisition component includes a cylindrical block, one side of which is rotatably engaged with a central column, and the other side of the cylindrical block is fixedly connected to a first camera; a lateral adjustment component is provided at the bottom of the cylindrical block for driving the cylindrical block to rotate horizontally, thereby driving the first camera to rotate horizontally; a hemispherical block is fixedly connected to the side of the central column away from the cylindrical block, and a second camera is fixedly connected to the side of the hemispherical block away from the central column; a vertical adjustment component is provided on the central column for driving the hemispherical block to rotate vertically, thereby driving the second camera to rotate vertically; the pen case is also provided with a teaching auxiliary component for monitoring the tilt angle of the pen case and the rotation angles of the cylindrical block and the hemispherical block.

[0008] The pen housing is provided with a control component for controlling the synchronous operation of the horizontal adjustment component and the vertical adjustment component; the control component is also used to control the operation of the first camera and the second camera, thereby collecting specimen model images.

[0009] The technical principles of the above scheme are as follows:

[0010] The lateral adjustment component and the vertical adjustment component are synchronously started through the control component. The lateral adjustment component will drive the cylindrical block to rotate horizontally, and then drive the first camera to rotate horizontally, so as to comprehensively collect images in the horizontal direction. At the same time, due to the coordinated rotation of the cylindrical block and the hemispherical block, the cylindrical block will drive the hemispherical block to rotate horizontally together. At the same time, the vertical adjustment component will cause the hemispherical block to rotate around the axis of the cylindrical block, so as to comprehensively collect images in the vertical direction.

[0011] The above scheme has the following beneficial effects:

[0012] 1. When capturing images of different angles and areas of a specimen model using electronic pens in the prior art, the instructor must constantly rotate his or her wrist and adjust his or her arm to adjust the tilt and rotation angles of the electronic pen, which is difficult to operate. Repeated adjustment of the electronic pen for a long time can also cause soreness in the instructor's wrist and arm, hindering the instructor's teaching. The present invention can automatically capture images of different angles and areas of a specimen model by automatically adjusting the angles of the first camera and the second camera, thereby reducing the operational difficulty of image capture, and reducing the instructor's physical exertion and discomfort, thereby facilitating the instructor's teaching and improving teaching effectiveness.

[0013] 2. By using the horizontally rotating first camera and the vertically rotating second camera, combined with the teaching staff's simple adjustment of the electronic pen's tilt angle, compared with the fixed camera in the existing technology, due to the limited rotation angle of the teaching staff's wrist, the image acquisition of the specimen model is not comprehensive. This device can capture the image of the specimen model more comprehensively, thereby improving the teaching effect.

[0014] 3. The electronic pen in the prior art requires the teaching staff to constantly adjust the collection angle of the electronic pen until a suitable specimen model image is captured before teaching can begin, resulting in low teaching efficiency; the present invention uses a first camera that rotates horizontally and a second camera that rotates vertically to quickly and conveniently collect specimen model images from various angles for the teaching staff, reducing the teaching staff's adjustment time and operation difficulty, and effectively improving teaching efficiency.

[0015] Furthermore, the lateral adjustment component includes a driving member fixedly connected to the lower end of the pen housing, the output shaft of the driving member is coaxially fixedly connected to the chassis, the bottom of the chassis is eccentrically fixedly connected to a connecting rod, and the bottom of the connecting rod is fixedly connected to the top of the cylindrical block; the control component is used to control the operation of the driving member, thereby driving the chassis to rotate; the cylindrical block is also provided with an indication component for teaching personnel to indicate the specimen model and projection image.

[0016] Beneficial effect: The driving member drives the first camera to rotate horizontally, so that the first camera can more comprehensively shoot various areas of the specimen model in the horizontal direction, thereby improving the comprehensiveness of the specimen model image acquisition.

[0017] Furthermore, the vertical adjustment assembly includes a rotating rod, which passes through the connecting rod and rotates with it; the two ends of the rotating rod are respectively fixedly connected to the first gear and the first bevel gear; the second gear is coaxially fixedly connected to the center column, and the first gear is meshed with the second gear; the lower end of the pen housing is fixedly connected to the second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0018] Beneficial effect: The second camera is driven to rotate vertically by the driving member, so that the second camera can more comprehensively shoot various areas in the vertical direction of the specimen model, further improving the comprehensiveness of the specimen model image acquisition.

[0019] Furthermore, a pen cap is detachably connected to the lower end of the pen shell, and the pen cap is made of a transparent material; a lighting component for illuminating the specimen model is provided in the pen cap.

[0020] Beneficial effects: the pen cover can protect the various components at the lower end of the pen shell; at the same time, the lighting component can illuminate the specimen model through the transparent pen cover, thereby improving the shooting effect.

[0021] Furthermore, the lighting assembly includes a lighting lamp fixedly connected to the side of the first bevel gear away from the rotating rod; the control assembly is used to control the operation of the lighting lamp to illuminate the specimen model.

[0022] Beneficial Effects: By activating the lighting lamp through the control component, the lighting lamp can illuminate the specimen model, thereby improving the shooting effect. Furthermore, when the first bevel gear rotates, the lighting lamp also rotates accordingly, so that the lighting range of the lighting lamp can change with the rotation of the first gear and remain consistent with the shooting direction of the first camera, thereby improving the shooting effect of the first camera.

[0023] Furthermore, the indicating component includes a laser emitter fixedly connected to the bottom of the cylindrical block; the control component is used to control the operation of the laser emitter, thereby facilitating the teaching staff to indicate the specimen model.

[0024] Beneficial effects: The laser transmitter can emit laser light, and teaching staff can use the laser light to illuminate the projected image or specimen model, thereby indicating the projected image or specimen model from a distance, thereby improving the convenience of teaching.

[0025] Furthermore, a battery is embedded in the pen case, and the battery is used to power the driving part, the first camera and the second camera; a charging port for charging the battery is provided on the top of the pen case.

[0026] Beneficial effects: The battery design allows the entire device to be used without cables, improving the convenience of teaching; the charging port design allows the device to be repeatedly charged and reused, reducing teaching costs.

[0027] Furthermore, the control component includes a first button, a second button, a third button, a fourth button and a fifth button installed on the outside of the pen housing from top to bottom. The first button is used to control the operation of the driving member, the second button is used to control the operation of the first camera and the second camera, the third button is used to control the operation of the lighting lamp, the fourth button is used to control the operation of the laser emitter, and the fifth button is used to pause the current projected image; a knob is also installed on the outside of the pen housing, and the knob is used to control the zoom of the projected image.

[0028] Beneficial effects: The design of the first button, the second button, the third button, the fourth button, the fifth button and the knob improves the convenience of operation for teaching staff. They only need to activate different buttons according to teaching needs to complete various operations, which reduces the difficulty of teaching and improves teaching efficiency.

[0029] Furthermore, the teaching auxiliary component includes an angle sensor embedded in the pen housing, which is used to monitor the tilt angle of the pen housing and transmit it to the teaching system; scale lines are provided on the lower end of the pen housing and on the side of the cylindrical block close to the center column.

[0030] Beneficial effect: Through the design of the angle sensor and scale lines, teaching staff can clearly and intuitively observe the tilt angle of the pen case and the rotation angle of the cylindrical block and the hemispherical block, thereby improving the accuracy of the angle adjustment of the first camera and the second camera.

[0031] Furthermore, the teaching system includes an image collection module, a three-dimensional modeling module and a projection module.

[0032] The image collection module is used to receive images of the specimen model captured by the first camera and the second camera, and transmit them to the three-dimensional modeling module and the projection module.

[0033] The three-dimensional modeling module is used to receive the image of the specimen model transmitted by the image collection module, construct a three-dimensional graphic of the specimen model according to the image of the specimen model, and transmit the three-dimensional graphic of the specimen model to the projection module.

[0034] The projection module is used to receive the image and three-dimensional graphics of the specimen model and project the image and three-dimensional graphics of the specimen model through a projector; the projection module is also used to synchronously adjust the horizontal rotation angle of the three-dimensional graphics according to the horizontal rotation angle of the first camera; synchronously adjust the vertical rotation angle of the three-dimensional graphics according to the vertical rotation angle of the second camera; and adjust the inclination angle of the three-dimensional graphics according to the inclination angle of the pen shell.

[0035] Beneficial effect: In the prior art, when adjusting the angle of a three-dimensional graphic, the teaching staff needs to pull the three-dimensional graphic with a mouse to adjust the angle of the three-dimensional graphic. However, this adjustment method cannot accurately know the adjustment angle, resulting in inaccurate adjustment. It is difficult to adjust the angle of the three-dimensional graphic to the angle required by the teaching staff, which affects the teaching process. The system associates the angle of the three-dimensional graphic with the rotation angle of the first camera and the second camera and the tilt angle of the pen shell to perform synchronous adjustment. The teaching staff can then accurately know the adjustment angle through the scale line and the angle sensor, and make the adjustment more precise, so as to better adjust the angle of the three-dimensional graphic to the angle required by the teaching staff, thereby improving the teaching effect.

[0036] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The invention provides an axonometric drawing of a teaching specimen model using an electronic pen.

[0038] Figure 2 The figure is a side sectional view of the pen cover of the electronic pen used for explaining the teaching specimen model of the present invention.

[0039] Figure 3 This is a front axonometric view of the specimen model collection component in the electronic pen used to explain the teaching specimen model of the present invention.

[0040] Figure 4 This is a reverse axonometric view of the specimen model collection component in the electronic pen used to explain the teaching specimen model of the present invention.

[0041] The figure marks in the drawings of the specification include: 1. pen case; 2. cylindrical block; 3. center column; 4. first camera; 5. hemispherical block; 6. second camera; 7. chassis; 8. connecting rod; 9. rotating rod; 10. first gear; 11. first bevel gear; 12. second gear; 13. second bevel gear; 14. pen cover; 15. lighting lamp; 16. laser transmitter; 17. charging port; 18. first button; 19. second button; 20. third button; 21. fourth button; 22. fifth button; 23. knob; 24. stepping motor. DETAILED DESCRIPTION

[0042] The following is further described in detail through specific implementation methods:

[0043] Example 1:

[0044] As attached Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown: An electronic pen for teaching specimen model explanation, including a projector, a teaching system for collecting specimen model images and transmitting the specimen model images to the projector, and a pen shell 1; the pen shell 1 is provided with a specimen model acquisition component for acquiring specimen model images.

[0045] like Figure 2 As shown, the specimen model acquisition component includes a cylindrical block 2, which is rotated with a central column 3 on the right side of the cylindrical block 2, and a first camera 4 is fixedly connected to the left side of the cylindrical block 2 with a screw; a lateral adjustment component is provided at the bottom of the cylindrical block 2 for driving the cylindrical block 2 to rotate horizontally, thereby driving the first camera 4 to rotate horizontally; a hemispherical block 5 is fixedly bonded to the right side of the central column 3, and a second camera 6 is fixedly connected to the lower right side of the hemispherical block 5 with a screw; a vertical adjustment component is provided on the central column 3 for driving the hemispherical block 5 to rotate vertically, thereby driving the second camera 6 to rotate vertically; the pen case 1 is also provided with a teaching auxiliary component for monitoring the tilt angle of the pen case 1 and the rotation angles of the cylindrical block 2 and the hemispherical block 5.

[0046] The pen housing 1 is provided with a control component for controlling the synchronous operation of the lateral adjustment component and the vertical adjustment component; the control component is also used to control the operation of the first camera 4 and the second camera 6 to collect the specimen model image.

[0047] Specifically, the instructor uses the control unit to simultaneously activate the lateral and vertical adjustment components. The lateral adjustment component drives the cylindrical block 2 and first camera 4 to rotate horizontally, comprehensively capturing horizontal images. Simultaneously, due to the coordinated rotation of the cylindrical block 2 and the hemispherical block 5, the cylindrical block 2 drives the hemispherical block 5 to rotate horizontally, while the vertical adjustment component causes the hemispherical block 5 to rotate about the axis of the cylindrical block 2, thereby comprehensively capturing vertical images. Through the lateral rotation of the first camera 4 and the vertical rotation of the second camera 6, combined with the instructor's simple adjustment of the electronic pen's tilt angle, the device can quickly and easily capture images of the specimen model from all angles, reducing operational difficulty for the instructor and improving the comprehensiveness of image acquisition, thereby enhancing teaching effectiveness.

[0048] like Figure 2 As shown, the lateral adjustment assembly includes a driving member fixedly connected to the lower end of the pen housing 1 with bolts. In this embodiment, the driving member is a stepper motor 24; the output shaft of the stepper motor 24 is fixedly connected to the chassis 7 with a coaxial bolt, and a connecting rod 8 is eccentrically fixedly bonded to the bottom of the chassis 7, and the bottom of the connecting rod 8 is fixedly bonded to the top of the cylindrical block 2; the control assembly is used to control the operation of the stepper motor 24, thereby driving the chassis 7 to rotate; the cylindrical block 2 is also provided with an indication assembly for teaching personnel to indicate the specimen model and the projection image.

[0049] Specifically, the teaching staff starts the stepper motor 24 through the control component, and the output shaft of the stepper motor 24 drives the chassis 7 and the connecting rod 8 to rotate, thereby driving the cylindrical block 2 and the first camera 4 to rotate horizontally around the axis of the chassis 7, so that the first camera 4 can shoot various areas of the specimen model in the horizontal direction, thereby improving the comprehensiveness of image acquisition.

[0050] like Figure 2 As shown, the vertical adjustment assembly includes a rotating rod 9, which passes through the connecting rod 8 and rotates with it; the first gear 10 and the first bevel gear 11 are respectively bolted to both ends of the rotating rod 9; the second gear 12 is coaxially bolted to the center column 3, and the first gear 10 is meshed with the second gear 12; the second bevel gear 13 is bolted to the lower end of the pen housing 1, and the first bevel gear 11 is meshed with the second bevel gear 13.

[0051] Specifically, when the stepping motor 24 drives the chassis 7 and the connecting rod 8 to rotate, since the rotating rod 9 passes through the connecting rod 8 and rotates with it, the connecting rod 8 will drive the rotating rod 9 to rotate horizontally, and since the first bevel gear 11 is engaged with the second bevel gear 13, the first bevel gear 11 is driven to rotate on the second bevel gear 13, and the first bevel gear 11 will drive the rotating rod 9 and the first gear 10 to rotate. Since the first gear 10 is engaged with the second gear 12, the first gear 10 will drive the second gear 12 to rotate, and then drive the central column 3 and the hemispherical block 5 to rotate around the axis of the central column 3. The hemispherical block 5 will drive the second camera 6 to rotate vertically, so that the second camera 6 can more comprehensively shoot various areas of the specimen model in the vertical direction, further improving the comprehensiveness of the specimen model image acquisition.

[0052] like Figure 2 As shown, the lower end of the pen housing 1 is detachably secured to a pen cap 14 made of a transparent material. Pen cap 14 houses an illumination assembly for illuminating the specimen model. The illumination assembly includes a lamp 15 screwed to the side of the first bevel gear 11 away from the rotating rod 9. A control assembly controls the operation of lamp 15, thereby illuminating the specimen model. The detachable engagement between the pen housing 1 and pen cap 14 facilitates subsequent disassembly of the pen housing 1 and pen cap 14 for repair or replacement of components within the pen cap 14.

[0053] Specifically, the teaching staff activates the illuminating lamp 15 through the control assembly. The light emitted by the illuminating lamp 15 illuminates the specimen model through the transparent pen cap 14, thereby improving the photographic effect. When the first bevel gear 11 rotates, the illuminating lamp 15 also rotates accordingly, so that the illumination range of the illuminating lamp 15 can change with the rotation of the first bevel gear 11. During this process, the illumination direction of the illuminating lamp 15 always remains consistent with the photographic direction of the first camera 4, effectively improving the photographic effect of the first camera 4.

[0054] like Figure 2 As shown, the indicating assembly includes a laser emitter 16 fixedly connected to the bottom of the cylindrical block 2 by bolts; the control assembly is used to control the operation of the laser emitter 16, thereby facilitating the teaching staff to indicate the specimen model.

[0055] Specifically, the teaching staff activates the laser emitter 16 through the control component, and the laser emitter 16 can emit laser; the teaching staff can use the laser to illuminate the projected image or specimen model, thereby indicating the projected image or specimen model from a distance, thereby improving the convenience of teaching.

[0056] like Figure 1As shown, the control component includes a first button 18, a second button 19, a third button 20, a fourth button 21 and a fifth button 22 installed on the outside of the pen housing 1 from top to bottom. The first button 18 is used to control the operation of the stepper motor 24, the second button 19 is used to control the operation of the first camera 4 and the second camera 6, the third button 20 is used to control the operation of the lighting lamp 15, the fourth button 21 is used to control the operation of the laser emitter 16, and the fifth button 22 is used to pause the current projected image; a knob 23 is also installed on the outside of the pen housing 1, and the knob 23 is used to control the zoom of the projected image.

[0057] like Figure 1 and Figure 2 As shown, the teaching auxiliary component includes an angle sensor (not shown in the figure) embedded in the pen housing 1. The angle sensor is used to monitor the tilt angle of the pen housing 1 and transmit it to the teaching system; scale lines are provided on the lower end of the pen housing 1 and on the side of the cylindrical block 2 close to the center column 3.

[0058] Specifically, the instructor can clearly and intuitively observe the tilt angle of the pen housing 1 and the rotation angles of the cylindrical block 2 and hemispherical block 5 based on the scale lines, thereby improving the accuracy of the angle adjustment of the first and second cameras 4 and 6. The number and spacing of the scale lines can be adjusted according to actual needs. In this embodiment, each scale line is spaced 30° apart. For example, if the instructor wants to rotate the first camera 4 90°, rotating the cylindrical block 2 by three scale lines will suffice.

[0059] The teaching system includes an image collection module, a three-dimensional modeling module and a projection module; each model is connected to each other by signals.

[0060] The image collection module is used to receive images of the specimen model captured by the first camera 4 and the second camera 6, and transmit them to the three-dimensional modeling module and the projection module.

[0061] The three-dimensional modeling module is used to receive the image of the specimen model transmitted by the image collection module, construct a three-dimensional graphic of the specimen model according to the image of the specimen model, and transmit the three-dimensional graphic of the specimen model to the projection module.

[0062] The projection module is used to receive the image and three-dimensional graphics of the specimen model, and project the image and three-dimensional graphics of the specimen model through a projector; the projection module is also used to synchronously adjust the horizontal rotation angle of the three-dimensional graphics according to the horizontal rotation angle of the first camera 4; synchronously adjust the vertical rotation angle of the three-dimensional graphics according to the vertical rotation angle of the second camera 6; and adjust the inclination angle of the three-dimensional graphics according to the inclination angle of the pen case 1.

[0063] Specifically, after the first camera 4 and the second camera 6 capture images of the specimen model, the three-dimensional modeling module will construct a three-dimensional graphic of the specimen model according to the image of the specimen model, and the projector will project the three-dimensional graphic of the specimen model; at this time, the teaching staff can adjust the tilt angle of the three-dimensional graphic in the projected image by adjusting the tilt angle of the pen shell 1, and adjust the horizontal rotation angle and vertical rotation angle of the first camera 4 and the second camera 6 through the stepping motor 24, thereby adjusting the horizontal rotation angle and vertical rotation angle of the three-dimensional graphic; by associating the angle of the three-dimensional graphic with the rotation angle of the first camera 4 and the second camera 6 and the tilt angle of the pen shell 1, synchronous adjustment is performed, and combined with the design of the scale line and the angle sensor, the teaching staff can accurately know the adjustment angle, and make the adjustment more precise, so as to better adjust the angle of the three-dimensional graphic to the angle required by the teaching staff, thereby improving the teaching effect.

[0064] The specific implementation process is as follows:

[0065] by Figure 1 For example, during the teaching process, the teaching staff holds the pen housing 1 of the device and moves the lower end of the pen housing 1 to the vicinity of the specimen model so that the cylindrical block 2 and the hemispherical block 5 are about 2 cm away from the specimen model, and then starts to collect images of the specimen model.

[0066] To capture images, the instructor presses the first and second buttons 18, 19, to activate the stepper motor 24, the first camera 4, and the second camera 6. The stepper motor 24 drives the chassis 7 and the connecting rod 8 to rotate. The connecting rod 8 then drives the cylindrical block 2 and the first camera 4 to rotate, causing the first camera 4 to rotate about the axis of the pen housing 1, capturing images of the specimen model over a wide range. Simultaneously, the connecting rod 8 also drives the rotating rod 9, causing the first bevel gear 11 to rotate on the second bevel gear 13, which in turn drives the rotating rod 9 and the first gear 10. The first gear 10 drives the second gear 12, which in turn drives the center column 3 and the hemispherical block 5, causing the second camera 6 to rotate about the axis of the center column 3, further capturing images of the specimen model over a wide range.

[0067] During the image acquisition process, if supplementary lighting is required for the specimen model, the teaching staff can press the third button 20 to start the lighting lamp 15 to supplementary light for the specimen model.

[0068] The projection module will transmit the images captured by the first camera 4 and the second camera 6 to the projector in real time for projection. The teaching staff can pause the current projected image by pressing the fifth button 22; reduce or enlarge the projected image by turning the knob 23; and start the laser generator by pressing the fourth button 21 to indicate the projected image or specimen model.

[0069] After the image acquisition is completed, the 3D modeling module will construct a 3D graphic of the specimen model, and the projection module will project the 3D model; at this time, the teaching staff can conveniently adjust the rotation angle and tilt angle of the 3D graphic in the projection by pressing the first button 18 and adjusting the tilt angle of the pen shell 1, find the 3D graphic with the appropriate angle, and conduct teaching explanations.

[0070] Through the automated and mechanized mechanical structure design, this device can improve the comprehensiveness of specimen model image acquisition, thereby improving teaching effectiveness; at the same time, it reduces the operational difficulty of image acquisition, reduces the physical exertion of teaching staff and image acquisition time, which is beneficial to teaching staff and improves teaching effectiveness.

[0071] Example 2:

[0072] As attached Figure 1 As shown, different from the above embodiment, a battery (not shown in the figure) is embedded in the pen housing 1, and the battery is used to power the stepper motor 24, the first camera 4 and the second camera 6; a charging port 17 for charging the battery is provided on the top of the pen housing 1.

[0073] The specific implementation process is as follows: before and after using the device, the teaching staff can charge the battery through the charging port 17; through the design of the battery, the entire device can be used without a cable, which improves the convenience of teaching; through the design of the charging port 17, the device can be repeatedly charged, making the device reusable and reducing the teaching cost.

[0074] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An electronic pen for explaining teaching specimen models, including a projector, characterized in that: It also includes a teaching system and a pen case (1) for collecting specimen model images and transmitting the specimen model images to a projector; the pen case (1) is provided with a specimen model acquisition component for acquiring specimen model images; The specimen model acquisition component comprises a cylindrical block (2), one side of the cylindrical block (2) is rotatably matched with a central column (3), and the other side of the cylindrical block (2) is fixedly connected to a first camera (4); a lateral adjustment component for driving the cylindrical block (2) to rotate horizontally, thereby driving the first camera (4) to rotate horizontally, is provided at the bottom of the cylindrical block (2); a hemispherical block (5) is fixedly connected to the side of the central column (3) away from the cylindrical block (2), and a second camera (6) is fixedly connected to the side of the hemispherical block (5) away from the central column (3); a vertical adjustment component for driving the hemispherical block (5) to rotate vertically, thereby driving the second camera (6) to rotate vertically is provided on the central column (3); and a teaching auxiliary component for monitoring the tilt angle of the pen case (1) and the rotation angles of the cylindrical block (2) and the hemispherical block (5) is also provided on the pen case (1); The pen housing (1) is provided with a control component for controlling the synchronous operation of the horizontal adjustment component and the vertical adjustment component; the control component is also used to control the operation of the first camera (4) and the second camera (6), thereby collecting specimen model images.

2. The electronic pen for explaining teaching specimen models according to claim 1, characterized in that: The lateral adjustment component comprises a driving member fixedly connected to the lower end of the pen housing (1); an output shaft of the driving member is coaxially fixedly connected to a chassis (7); a connecting rod (8) is eccentrically fixedly connected to the bottom of the chassis (7); the bottom of the connecting rod (8) is fixedly connected to the top of the cylindrical block (2); a control component is used to control the operation of the driving member, thereby driving the chassis (7) to rotate; and an indication component is also provided on the cylindrical block (2) for teaching personnel to indicate the specimen model and the projection image.

3. The electronic pen for explaining teaching specimen models according to claim 2, characterized in that: The vertical adjustment assembly comprises a rotating rod (9), which passes through a connecting rod (8) and is rotatably matched therewith; two ends of the rotating rod (9) are respectively fixedly connected to a first gear (10) and a first bevel gear (11); a second gear (12) is coaxially fixedly connected to the center column (3), and the first gear (10) is meshed with the second gear (12); and a second bevel gear (13) is fixedly connected to the lower end of the pen housing (1), and the first bevel gear (11) is meshed with the second bevel gear (13).

4. The electronic pen for explaining teaching specimen models according to claim 3, characterized in that: The lower end of the pen housing (1) is detachably connected to a pen cover (14), and the pen cover (14) is made of a transparent material; a lighting component for illuminating the specimen model is provided in the pen cover (14).

5. The electronic pen for explaining teaching specimen models according to claim 4, characterized in that: The lighting assembly comprises a lighting lamp (15) fixedly connected to a side of the first bevel gear (11) away from the rotating rod (9); and the control assembly is used to control the operation of the lighting lamp (15) to illuminate the specimen model.

6. The electronic pen for explaining teaching specimen models according to claim 5, characterized in that: The indicating component comprises a laser emitter (16) fixedly connected to the bottom of the cylindrical block (2); the control component is used to control the operation of the laser emitter (16), thereby facilitating the teaching staff to indicate the specimen model.

7. The electronic pen for explaining teaching specimen models according to claim 6, characterized in that: A battery is embedded in the pen housing (1), and the battery is used to supply power to the driving member, the first camera (4), and the second camera (6); a charging port (17) for charging the battery is provided on the top of the pen housing (1).

8. The electronic pen for explaining teaching specimen models according to claim 7, characterized in that: The control component comprises a first button (18), a second button (19), a third button (20), a fourth button (21) and a fifth button (22) which are sequentially installed on the outside of the pen housing (1) from top to bottom. The first button (18) is used to control the operation of the driving member, the second button (19) is used to control the operation of the first camera (4) and the second camera (6), the third button (20) is used to control the operation of the lighting lamp (15), the fourth button (21) is used to control the operation of the laser emitter (16), and the fifth button (22) is used to pause the current projected image. A knob (23) is also installed on the outside of the pen housing (1), and the knob (23) is used to control the zoom of the projected image.

9. The electronic pen for explaining teaching specimen models according to claim 8, characterized in that: The teaching auxiliary component comprises an angle sensor embedded in the pen housing (1), the angle sensor being used to monitor the tilt angle of the pen housing (1) and transmit the tilt angle to the teaching system; scale lines are provided on the lower end of the pen housing (1) and on one side of the cylindrical block (2) close to the center column (3).

10. The electronic pen for explaining teaching specimen models according to claim 9, characterized in that: The teaching system includes an image collection module, a 3D modeling module, and a projection module; An image collection module is used to receive images of the specimen model collected by the first camera (4) and the second camera (6), and transmit the images to the three-dimensional modeling module and the projection module; a three-dimensional modeling module, configured to receive the image of the specimen model transmitted by the image collecting module, construct a three-dimensional graphic of the specimen model according to the image of the specimen model, and transmit the three-dimensional graphic of the specimen model to the projection module; The projection module is used to receive the image and three-dimensional graphics of the specimen model and project the image and three-dimensional graphics of the specimen model through a projector; the projection module is also used to synchronously adjust the horizontal rotation angle of the three-dimensional graphics according to the horizontal rotation angle of the first camera (4); synchronously adjust the vertical rotation angle of the three-dimensional graphics according to the vertical rotation angle of the second camera (6); and adjust the tilt angle of the three-dimensional graphics according to the tilt angle of the pen housing (1).

Images