Intelligent puppet table based on mixed reality technology

Through the origami landscape automatic page turning and MR virtual control equipment of the smart puppet stage, the problem of cumbersome replacement of traditional puppet show scenes and difficult to operate is solved, and the automatic switching of scenes and immersive experience is realized, which promotes the inheritance and development of puppet show.

CN222238777UActive Publication Date: 2024-12-27SOUTH CHINA UNIV OF TECH
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Patent Information

Application Number
CN202420563475.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-21
Publication Date
2024-12-27
Estimated Expiration
2034-03-21

AI Technical Summary

Technical Problem

Traditional puppet shows have problems such as cumbersome scene replacement, easy to damage props, difficult to operate, reduced popularity, difficult inheritance, and single display form.

Method used

Using a smart puppet stage based on mixed reality technology, the automatic page turning device of origami landscape and the MR virtual control device can realize automatic scene switching and immersive experience, combining background projection and curtain device to enhance visual effects and operation convenience.

Benefits of technology

It realizes time-saving and efficient automatic switching of stage scenes, enhances user experience, attracts different groups of people, promotes the inheritance and development of puppet shows, and overcomes the limitations of time and space.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an intelligent puppet paddling platform based on mixed reality technology. The intelligent puppet paddling platform comprises a paddling platform body, a paper folding landscape automatic page turning device and an MR virtual control device. The paddling platform body comprises a platform and a triangular cushion block which is located on the rear portion of the platform. The automatic page turning equipment for the paper folding landscape comprises a background plate, a belt, a steering engine and a background plate vertical fixing device arranged behind the platform. The lower ends of the plurality of background plates are sequentially connected with one section of the belt from front to back, so that the background plates and the section of the belt form a three-dimensional book structure containing a paper folding landscape model; a gap for accommodating the background plate is reserved between the background plate vertical fixing device and the rear end of the platform; the belt along the laying path comprises a front drooping section located in front of the platform, a horizontal section lapped on the upper end face of the platform, a lifting section lifted by the triangular cushion block and a rear drooping section located in the gap, and the two steering engines pull the two ends of the belt to make the belt translate along the laying path. According to the utility model, different scenes can be automatically switched, and the system belongs to the technical field of puppet paddling tables.
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Description

Technical Field

[0001] The utility model relates to the technical field of puppet stages, and in particular to an intelligent puppet stage based on mixed reality technology. Background Art

[0002] Mixed reality technology (MR) is a further development of virtual reality technology. MR introduces real scene information into the virtual environment, builds an interactive feedback information loop between the virtual environment, the real environment and the user, so as to enhance the realism of the user experience.

[0003] Puppetry belongs to the world's intangible cultural heritage and national intangible cultural heritage. Puppetry refers to a traditional opera form in which artists manipulate puppets to perform stories. Artists manipulate puppets behind the scenes while singing along with music. In puppetry performances, each puppet is installed with three hard wires, one of which is the back wire, which is used to fix the whole body of the puppet and enable the puppet to bend over and protrude its chest. The other two are ear wires installed on the ears of the puppet, which are used to fix the head and enable it to turn left and right and tilt up and down. Soft wires (performance wires) are also installed at each joint of the hands and feet, and line points are added according to the needs of the action performance, up to 20, to facilitate complex and varied performances. Traditional puppet models are mostly handmade, and the stage for puppetry needs to be built on site.

[0004] However, traditional puppetry has the following disadvantages: (1) During a puppet show, different scenes require manual replacement of backgrounds and placement of props on the stage. The props are scattered, time-consuming and laborious to place, and easily damaged or lost when collected; (2) Due to the difficulty in manipulating multiple hard and soft wires, young people have little interest in puppetry, and the popularity has decreased. Today, traditional puppetry is difficult to inherit and develop; (3) Puppet models are cumbersome to make and the prefabrication cost is high; (4) Traditional puppetry is a single form of performance in which the audience watches the performance in front of the stage. The audience cannot manipulate the puppets themselves and cannot experience the puppetry themselves. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide an intelligent puppet stage based on mixed reality technology, which automatically switches between different scenes.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The invention discloses an intelligent puppet stage based on mixed reality technology, comprising a stage body, an automatic page-turning device for origami landscape, and an MR virtual control device; the stage body comprises a platform and a triangular pad arranged on the upper end face of the platform, wherein the triangular pad is located at the rear of the platform; the automatic page-turning device for origami landscape comprises a plurality of background boards, a belt, two steering gears, and a background board erecting and fixing device; the lower ends of the plurality of background boards are sequentially connected with a section of the belt from front to back, so that the background boards and the section of the belt form a three-dimensional book structure containing an origami landscape model; the background board erecting and fixing device is arranged at the rear of the platform, and a gap is left between the background board and the rear end of the platform to accommodate the background board; along the laying path of the belt from front to back, the belt comprises a front drooping section located in front of the platform, a horizontal section resting on the upper end face of the platform, a lifting section lifted by the triangular pad, and a rear drooping section located in the gap, and the two steering gears pull the two ends of the belt to make the belt translate along the laying path.

[0008] As a preferred embodiment, the background plate erection fixing device includes a spring plate mechanism, the spring plate mechanism includes a front plate, a first spring and a rear plate, and a plurality of first springs are evenly distributed between the front plate and the fixed rear plate.

[0009] As a preferred embodiment, the background board erection fixing device also includes a top fixing mechanism, and the two top fixing mechanisms are respectively installed at the left and right ends of the top of the front board, and the top fixing mechanisms are pressed tightly against the top of the front erected background board.

[0010] As a preferred embodiment, the top fixing mechanism includes a fixing rod, a bearing, a second spring, a third spring, a rotating ring, a rotating seat, and a baffle rod, the fixing rod includes a cross rod section and a vertical round rod section, the cross rod section is fixedly connected to the top of the front plate; the side wall of the round rod section is fixedly connected to a side plate; the rotating ring is installed on the round rod section through a bearing, an inner side plate is fixedly connected to the inner wall of the rotating ring, and the two ends of the second spring surrounded by the side wall of the round rod section are respectively fixedly connected to the side plate and the inner side plate; the inner wall of the rotating seat is arc-shaped, and the outer side of the rotating ring is fixedly connected to the inner wall of the rotating seat; the rotating seat includes a front end and a rear end; a straight groove is provided on the inner wall of the front end, and the baffle rod sliding in the straight groove is connected to the bottom of the straight groove by the third spring; protrusions are provided at both ends of the top rear side of the upright background plate, and the height of the protrusions increases successively from back to front. When turning pages, the protrusion of the frontmost upright background plate correspondingly knocks on the rear end of the rotating seat, and the protrusion is stuck between the rear end of the rotating seat and the baffle rod.

[0011] As a preferred embodiment, an opening is provided at the front of the upper surface of the platform, and the front end of the belt passes through the opening; the steering gear drives the connecting roller to rotate, and the end of the belt is fixed to the surface of the connecting roller.

[0012] As a preferred embodiment, the background plate is bonded or connected to the belt by rivets.

[0013] As a preferred embodiment, the intelligent puppet stage also includes a shielding curtain and a curtain device; the shielding curtain is arranged on the side surface of the stage body; the curtain device located in the front of the platform includes an upper curtain and a lower curtain, and the upper curtain is arranged above the lower curtain; the upper curtain is installed on the front top of the stage body, and the upper curtain is unfolded downward or gathered upward; the lower curtain is unfolded or gathered symmetrically on the left and right.

[0014] As a preferred embodiment, the intelligent puppet stage also includes a background projection device, which includes three projectors; the stage body also includes a detachable supporting steel frame and diagonal supporting steels located at the top, a ring steel is installed at the central intersection of the diagonal supporting steels, and the three projectors are respectively installed in the front, left and right positions of the ring steel, and the three projectors respectively correspond to the back, right and left sides of the intelligent puppet stage for dynamic background projection.

[0015] As a preferred embodiment, the smart puppet stage also includes infrared sensors and voice broadcasting equipment; the MR virtual control equipment includes a MR headset and a control system.

[0016] As a preferred embodiment, the smart puppet stage also includes a three-dimensional origami model.

[0017] The working principle of the automatic page turning of the intelligent puppet stage: the automatic page turning device of origami landscape adopts the method of three-dimensional book to turn pages, and each time the page is turned, a different scene is switched. The lower ends of multiple background boards are connected to a section of the belt from front to back in sequence, and the background board is driven to turn pages by pulling the taut belt through the synchronous rotation of two servos. When the two servos rotate backwards synchronously at a certain angle, the taut belt drives the horizontal background board to turn upward, pushing the spring plate mechanism to compress and deform, providing space for turning pages. After the page is turned, the spring plate mechanism rebounds, and the front plate squeezes the lower end of the vertical background board to close to the rear end of the platform. The convex block on the background board correspondingly knocks on the rear end of the rotating seat to compress the second spring, and the rotating seat rotates, and the baffle rod pushes the top of the front vertical background board backward to fix the top of the front background board; at the same time, the triangular pad is lowered by a certain distance (the distance value is the sum of the thickness of a background board and the thickness of the origami landscape model after folding between adjacent background boards). When the two servos rotate forward synchronously at a certain angle, the taut belt drives the upright background board to flip downward, pushing the spring plate mechanism to compress and deform, providing space for turning pages, the second spring rebounds, the rotating seat rotates, the baffle bar leaves the background board, and after the page turning is completed, the spring plate mechanism rebounds, and the triangular pad rises a certain distance (the distance value is the sum of the thickness of a background board and the thickness of the origami landscape model after folding between adjacent background boards).

[0018] The utility model has the following advantages:

[0019] (1) The intelligent puppet stage of the utility model cleverly uses the page-turning method of a three-dimensional book to automatically switch the stage scene. The three-dimensional book structure has an origami landscape model, and there is no need to manually carry the props on the scene, which is time-saving and efficient. The scenery on the stage has a three-dimensional sense of space, which brings a better visual experience effect to the audience or users.

[0020] (2) The smart puppet stage is combined with MR technology. Users can immerse themselves in the puppet show in the virtual world of the game through MR virtual control devices. The operation is simple, interesting and attractive, and different groups of people can understand the beauty of puppetry in a modern way. Users do not have to go to the puppet theater at a specified time. As long as they have this smart puppet stage, they can experience it in person, overcoming the limitations of time and space, promoting the effective publicity and promotion of puppetry, and playing a positive role in the inheritance and development of puppetry.

[0021] (3) When the automatic page-turning device for origami landscape automatically switches the stage scene, the thickness of the multiple horizontally stacked background boards will constantly change, so that the gap height at the rear lower end of the multiple horizontally stacked background boards will constantly change. The triangular pads move up and down to automatically adjust the height to adapt to the height of the gap. The triangular pads assist in guiding the movement of the tight belt and keep the background boards on the platform stacked horizontally at all times.

[0022] (4) The elastic force of the first spring acts as a buffer on the front plate, so that the front plate with elasticity in the front-to-back direction can fix and squeeze vertically stacked background plates of different numbers and thicknesses, so that the lower end of the vertical background plate is firmly fixed in the gap, while also providing sufficient space for turning pages.

[0023] (5) When the background board is flipped upward, the front end of the rotating seat is knocked backward by the protrusion, and the rotating seat rotates to make the blocking rod tightly press and support the top of the front erected background board; when the front erected background board falls back and overlaps, the rebound reset of the second spring realizes the rotation of the rotating seat to make the blocking rod bounce off the top of the background board; the top fixing mechanism adopts the compression and rebound of the second spring, and the design is ingenious, and the top of the front erected background board can be tightly pressed and supported without a power source.

[0024] (6) The third spring arranged between the barrier rod and the bottom of the straight groove realizes the front and rear elastic buffering of the barrier rod, so that the barrier rod can support vertically stacked background panels of different thicknesses.

[0025] (7) The belt passes through the opening on the platform, and the opening fixes the belt on the platform so that it does not shift left or right.

[0026] (8) The upper curtain is used to display the title of the play; the lower curtain is closed when switching between different scenes and when the origami landscape automatic page turning device automatically turns pages; the lower curtain is opened during the play performance.

[0027] (9) The infrared sensor is used to sense whether someone is approaching and intelligently control the wake-up and sleep of the smart puppet stage, effectively reducing the use of backup power and increasing battery life; the voice broadcast device is used to make voice broadcasts after the infrared sensor senses that someone is approaching or leaving.

[0028] (10) The setting of a separate three-dimensional origami model allows users to place the three-dimensional origami model on a horizontally stacked background board for free creation when directing and acting in their own plot.

[0029] (11) The structure of the intelligent puppet stage is simple and easy to disassemble. Each device is designed in an intensive manner, which saves space and is easy to transport and transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the page turning principle of the origami landscape automatic page turning device.

[0031] Figure 2 This is a schematic diagram of a scenario in which a user is using the smart puppet stage.

[0032] Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 Schematic diagram of the construction process of the smart puppet stage.

[0033] Figure 8 Schematic diagram of the page turning process of the origami landscape automatic page turning device.

[0034] Fig. 9 Right view of the automatic page turning device for origami landscape.

[0035] Fig.10 for Fig. 9 A partial enlarged view of point A.

[0036] Fig.11 This is a schematic diagram of the status of the automatic page turning device of the origami landscape when the first background board is halfway turned.

[0037] Fig.12 This is a schematic diagram of the status of the automatic page turning device for origami landscape when the first background board is turned over.

[0038] Fig.13 for Fig.11 A partial enlargement of the posterior apex.

[0039] Fig.14 for Fig.12 A partial enlargement of the posterior apex.

[0040] Fig.15 This is a schematic diagram of the status of the automatic page turning device of the origami landscape when the second background plate is halfway turned over.

[0041] Fig.16 This is a schematic diagram of the status of the automatic page turning device for origami landscape when the second background board is turned over.

[0042] Fig.17 for Fig.15 A partial enlargement of the posterior apex.

[0043] Fig.18 for Fig.16 A partial enlargement of the posterior apex.

[0044] Fig.19 A schematic diagram of the structure of the background board erection fixing device.

[0045] Fig. 20 It is a structural schematic diagram of the top fixing mechanism.

[0046] Fig.21 This is an exploded view of the top fixing mechanism.

[0047] Fig. 22 This is a connection diagram of the servo, connecting roller and belt.

[0048] Fig.23 Schematic diagram of the scene outside the Fire Cloud Cave of the embodiment.

[0049] Fig.24 Schematic diagram of the scene of Dragon Palace in the embodiment.

[0050] Among them, 1 is the stage body, 2 is the platform, 3 is the background board, 4 is the belt, 5 is the steering gear, 6 is the origami landscape model, 7 is the triangular pad, 8 is the front plate, 9 is the first spring, 10 is the back plate, 11 is the top fixing mechanism, 12 is the fixing rod, 13 is the bearing, 14 is the second spring, 15 is the third spring, 16 is the rotating ring, 17 is the rotating seat, 18 is the baffle, 19 is the cross bar section, 20 is the round bar section, 21 is the front end, 22 is the rear end, 23 is the protrusion, 24 is the opening, 25 is the connecting roller, 26 is the supporting steel frame, 27 is the projector, 28 is the diagonal supporting steel, 29 is the ring steel, 30 is the enclosing curtain, 31 is the upper curtain, 32 is the lower curtain, 33 is the MR head display, 34 is the computer, 35 is the three-dimensional origami model, and 36 is the side panel. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below in conjunction with specific implementation methods.

[0052] The invention discloses an intelligent puppet stage based on mixed reality technology, comprising a stage body, an automatic page-turning device for origami landscape, and an MR virtual control device; the stage body comprises a platform and a triangular pad arranged on the upper end face of the platform, wherein the triangular pad is located at the rear of the platform; the automatic page-turning device for origami landscape comprises a plurality of background boards, a belt, two steering gears, and a background board erecting and fixing device; the lower ends of the plurality of background boards are sequentially connected with a section of the belt from front to back, so that the background boards and the section of the belt form a three-dimensional book structure containing an origami landscape model; the background board erecting and fixing device is arranged at the rear of the platform, and a gap is left between the background board and the rear end of the platform to accommodate the background board; along the laying path of the belt from front to back, the belt comprises a front drooping section located in front of the platform, a horizontal section resting on the upper end face of the platform, a lifting section lifted by the triangular pad, and a rear drooping section located in the gap, and the two steering gears pull the two ends of the belt to make the belt translate along the laying path.

[0053] The background plate erection fixing device comprises a spring plate mechanism, which comprises a front plate, a first spring and a rear plate, and a plurality of first springs are evenly distributed between the front plate and the fixed rear plate.

[0054] The background plate erection fixing device also includes a top fixing mechanism. The two top fixing mechanisms are respectively installed at the left and right ends of the top of the front plate. The top fixing mechanisms tightly press the top of the front erected background plate.

[0055] The top fixing mechanism includes a fixing rod, a bearing, a second spring, a third spring, a rotating ring, a rotating seat, and a stopper. The fixing rod includes a horizontal rod section and a vertical circular rod section. The horizontal rod section is fixedly connected to the top of the front plate. The side wall of the circular rod section is fixedly connected to a side plate. The rotating ring is installed on the circular rod section through a bearing. An inner side plate is fixedly connected to the inner wall of the rotating ring. The two ends of the second spring surrounded by the side wall of the circular rod section are respectively fixedly connected to the side plate and the inner side plate. The inner wall of the rotating seat is arc-shaped. The outer side of the rotating ring is fixedly connected to the inner wall of the rotating seat. The rotating seat includes a front end and a rear end. A straight groove is provided on the inner wall of the front end. The stopper sliding in the straight groove is connected to the bottom of the straight groove through the third spring. Both ends of the rear side of the top of the erected background plate are provided with protrusions. The height of the protrusions increases from the back to the front. When turning pages, the protrusion of the frontmost erected background plate correspondingly knocks the rear end of the rotating seat, and the protrusion is stuck between the rear end of the rotating seat and the stopper. The stopper is vertically pressed against the front surface of the erected background plate. In this embodiment, the preferred number of background plates is 5.

[0056] When the belt pulls the background board to flip up and stand upright, the corresponding protrusion hits the rear end to compress the second spring, the rotating seat rotates, and the blocking rod pushes back against the top front side of the background board standing in front to fix the top of the background board; when the second background board is turned over, as the belt pulls the first standing background board downward, the first background board moves down, the corresponding protrusion leaves the front end of the rotating seat, and the second background board flips up and the protrusion also hits the front end, the rotating seat rotates, and the top of the front background board is fixed in this cycle. When the belt pulls the background boards downward to overlap, the protrusion leaves the rear end of the rotating seat, the second spring rebounds, and the blocking rod leaves the background board.

[0057] The purpose of increasing the height of the protrusions from front to back is to ensure that when multiple overlapping background boards are erected, the protrusions of the frontmost erected background board can have enough length to hit the rear end.

[0058] An opening is arranged at the front of the upper surface of the platform, and the front end of the belt passes through the opening; the steering gear drives the connecting roller to rotate, and the end of the belt is fixed on the surface of the connecting roller.

[0059] The background plate is glued or connected to the belt by rivets.

[0060] The intelligent puppet stage also includes a curtain and a curtain device; the curtain is arranged on the side surface of the stage body; the curtain device located in front of the platform includes an upper curtain and a lower curtain, the upper curtain is arranged above the lower curtain; the upper curtain is installed on the front top of the stage body, the upper curtain is unfolded downward or retracted upward; the lower curtain is unfolded or retracted symmetrically on the left and right. The curtain device also includes a curtain switch, which is used to automatically switch and control the opening and closing of the curtain according to the repertoire.

[0061] The smart puppet stage also includes background projection equipment, which includes three projectors; the stage body also includes a detachable support steel frame and diagonal support steels that cross at the top, a ring steel is installed at the central intersection of the diagonal support steels, and three projectors are installed in the front, left, and right positions of the ring steel, respectively. The three projectors correspond to the back, right, and left sides of the smart puppet stage for dynamic background projection. The three projectors are used to change different dynamic backgrounds according to the progress of the game plot.

[0062] The structure of the stage body refers to the traditional "Bagua shed" form of Lingnan puppet show, that is, the top Bagua plane and the upper and lower double curtain structure. The top Bagua plane includes the supporting steel frame and the diagonal supporting steel at the top. The upper and lower double curtain structure is the upper curtain and the lower curtain. The stage body focuses on the introduction of Lingnan traditional elements and traditional elements of puppet show in form and shape. It has a wide audience and creates a comfortable and interesting independent exhibition space, which is conducive to the spread of puppet show culture. The stage body adopts a supporting steel frame that is easy to assemble and disassemble. The supporting steel frame is a rectangular parallelepiped, and the platform divides the supporting steel frame into upper and lower layers.

[0063] The smart puppet stage also includes an infrared sensor and a voice broadcast device. The infrared sensor is set in front of the platform to sense whether someone is approaching, so as to wake up and sleep the electrical components of the smart puppet stage. The voice broadcast device is set on the stage body, which is used to broadcast the voice after the infrared sensor senses that someone is approaching or leaving, and at the same time prompt the status of the smart puppet stage. The MR virtual control device includes an MR headset and a control system. The control system is electrically connected to the MR headset. The computer is placed under the platform.

[0064] The smart puppet stage also includes a 3D origami model. The 3D origami model is designed using Sketchup software, and the paper plane layout of the 3D origami model before folding is performed using Rhino or Grasshopper software.

[0065] The configuration of the intelligent puppet stage in this embodiment selects the play "Flame Mountain", and the background board, origami landscape model and three-dimensional origami model of the intelligent puppet stage are correspondingly set; the scene includes Flame Mountain, outside the Fire Cloud Cave, inside the Fire Cloud Cave, and the Dragon Palace; the plants, rocks, and house buildings in the scene are correspondingly set into origami landscape models or three-dimensional origami models; the sky and different distant view patterns are correspondingly set on the surface of the background board.

[0066] A method for experiencing an intelligent puppet stage based on mixed reality technology, the steps are as follows:

[0067] Step 1: After the infrared sensor senses the user approaching, the smart puppet stage is awakened, and the voice broadcast device announces "Welcome to experience the game";

[0068] Step 2: The user puts on the MR headset, which scans the scene on the stage in real time as the game virtual world; the user performs body movements to manipulate the virtual models of puppets and props in the game virtual world, and has an immersive game performance experience; when it is necessary to switch to different scenes or different plays, the origami landscape automatic page turning device, background projection device, curtain device, and voice broadcasting device automatically operate according to the game process to achieve synchronization between virtual and real scenes;

[0069] Step 3: Users can place the 3D origami model on the background board on the platform and freely create a variety of stage scene layouts;

[0070] Step 4: When the user leaves, the infrared sensor transmits the corresponding signal, the voice broadcast device announces "Thank you for your experience", and the smart puppet stage enters sleep mode.

[0071] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An intelligent puppet stage based on mixed reality technology, characterized in that: Including the stage itself, origami landscape automatic page turning equipment, and MR virtual control equipment; The stage body comprises a platform and a triangular pad arranged on the upper end face of the platform, wherein the triangular pad is located at the rear of the platform; the automatic page turning device for origami landscape comprises a plurality of background boards, a belt, two steering gears, and a background board erecting and fixing device; the lower ends of the plurality of background boards are sequentially connected with a section of the belt from front to back, so that the background boards and the section of the belt constitute a three-dimensional book structure containing an origami landscape model; the background board erecting and fixing device is arranged at the rear of the platform, and a gap is left with the rear end of the platform to accommodate the background board; along the laying path of the belt from front to back, the belt comprises a front drooping section located in front of the platform, a horizontal section resting on the upper end face of the platform, a lifting section lifted by the triangular pad, and a rear drooping section located in the gap, and the two steering gears pull the two ends of the belt to make the belt translate along the laying path.

2. The intelligent puppet stage based on mixed reality technology according to claim 1, characterized in that: The background plate erection fixing device comprises a spring plate mechanism, which comprises a front plate, a first spring and a rear plate, and a plurality of first springs are evenly distributed between the front plate and the fixed rear plate.

3. The intelligent puppet stage based on mixed reality technology according to claim 2, characterized in that: The background plate erection fixing device also includes a top fixing mechanism. The two top fixing mechanisms are respectively installed at the left and right ends of the top of the front plate. The top fixing mechanisms tightly press the top of the front erected background plate.

4. The intelligent puppet stage based on mixed reality technology according to claim 3, characterized in that: The top fixing mechanism includes a fixing rod, a bearing, a second spring, a third spring, a rotating ring, a rotating seat, and a stop rod; The fixed rod includes a horizontal rod section and a vertical round rod section, the horizontal rod section is fixedly connected to the top of the front plate; the side wall of the round rod section is fixedly connected to one side plate; The rotating ring is installed on the round rod segment through a bearing, an inner plate is fixedly connected to the inner wall of the rotating ring, and two ends of the second spring surrounded by the side wall of the round rod segment are fixedly connected to the side plate and the inner plate respectively; The inner wall of the rotating seat is in an arc shape, and the outer side of the rotating ring is fixedly connected to the inner wall of the rotating seat; the rotating seat includes a front end and a rear end; a straight groove is provided on the inner wall of the front end, and a blocking rod sliding in the straight groove is connected to the bottom of the straight groove through a third spring; Both ends of the top rear side of the vertical background board are provided with protrusions, and the height of the protrusions increases from the back to the front. When turning the page, the protrusion of the front vertical background board correspondingly knocks the rear end of the rotating seat, and the protrusion is stuck between the rear end of the rotating seat and the blocking rod.

5. The intelligent puppet stage based on mixed reality technology according to claim 1, characterized in that: An opening is arranged at the front of the upper surface of the platform, and the front end of the belt passes through the opening; the steering gear drives the connecting roller to rotate, and the end of the belt is fixed on the surface of the connecting roller.

6. The intelligent puppet stage based on mixed reality technology according to claim 1, characterized in that: The background plate is glued or connected to the belt by rivets.

7. The intelligent puppet stage based on mixed reality technology according to claim 1, characterized in that: The intelligent puppet stage also includes a shielding curtain and a curtain device; the shielding curtain is arranged on the side surface of the stage body; the curtain device located in the front of the platform includes an upper curtain and a lower curtain, and the upper curtain is arranged above the lower curtain; the upper curtain is installed on the front top of the stage body, and the upper curtain is unfolded downward or gathered upward; the lower curtain is unfolded or gathered symmetrically on the left and right.

8. The intelligent puppet stage based on mixed reality technology according to claim 7, characterized in that: The intelligent puppet stage also includes background projection equipment, which includes three projectors; the stage body also includes a detachable supporting steel frame and diagonal supporting steels crossing at the top, a ring steel is installed at the central intersection of the diagonal supporting steels, and three projectors are respectively installed in the front, left and right positions of the ring steel. The three projectors respectively correspond to the back, right and left sides of the intelligent puppet stage for dynamic background projection.

9. The intelligent puppet stage based on mixed reality technology according to claim 1, characterized in that: The smart puppet stage also includes infrared sensors and voice broadcasting equipment; the MR virtual control equipment includes MR headsets and control systems.

10. The intelligent puppet stage based on mixed reality technology according to claim 1, characterized in that: The smart puppet stage also includes three-dimensional origami models.