Remote online education system based on VR technology

Abstract

The invention belongs to the technical field of online education systems, and particularly relates to a remote online education system based on a VR technology. Comprising a first terminal used by a teacher; the second terminal is used by students, and the first terminal and the second terminal are VR equipment; the server side is used for running VR software and processing images and data operation; the network equipment comprises a router, a switch and a network base station; the software platform comprises VR teaching content making software, real-time communication and interaction software and a learning management system; the VR equipment comprises a VR helmet and a gravity balance assisting mechanism, and the gravity balance assisting mechanism acts on the VR helmet. The purpose of remote online education is achieved by combining VR equipment with VR software through network transmission, and a gravity balance assisting mechanism is arranged in the VR equipment, so that the head of a wearer is completely relaxed, and the VR equipment is more comfortable to wear and suitable for children and long-time wearers to use; and accurate adjustment is facilitated, and the device is suitable for different crowds to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of online education systems, and specifically refers to a remote online education system based on VR technology. Background Art

[0002] VR technology has many advantages in the field of education. For students in their learning stage, especially in primary and secondary schools, interest can best stimulate their learning. Through the use of VR technology, in the study of geography, history, biology, physics, chemistry and other subjects, VR technology can be free from the restrictions of space and time, so that students can intuitively experience historical events, the mysteries of cosmic stars, observe animals and plants, observe cells and molecular structures under the microscopic level, etc. All these more intuitive experiences can further stimulate students' curiosity, enhance their interest in the subject, and then generate motivation for learning and a desire to explore knowledge. In addition, for courses that require experiments such as physics, chemistry, and biology, by using VR technology to conduct simulation experiments, not only is the operation easier, but it can also experience simulated real experimental scenes under a safer premise.

[0003] The problem with current VR technology is that students need to wear VR helmets, but because students' heads are of different sizes, it is difficult to adapt them to their head shapes, which will cause discomfort during use, affecting students' normal learning and use. In addition, as current VR devices have more and more functions and higher configurations, the weight of VR helmets is also getting heavier, and when worn on the head, the pulling feeling is getting greater and greater, causing discomfort, and the helmet is also prone to wearing instability and falling off. If the helmet is fixed by tightening the straps, it will further cause discomfort to the head, especially for younger children and students, causing certain troubles. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a remote online education system based on VR technology to solve the problem that the prior art is inconvenient and uncomfortable to use VR and is not suitable for children to use for a long time.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a remote online education system based on VR technology, comprising

[0006] The first terminal is for teachers to use;

[0007] The second terminal is for students to use, and the first terminal and the second terminal are VR devices;

[0008] The server side is used to run VR software and process images and data to ensure smooth operation and real-time rendering of the visual environment;

[0009] Network equipment, including routers, switches, and network base stations, to ensure smooth network operation;

[0010] In an embodiment, the VR device further includes a VR handle, a somatosensory glove, a motion capture device, etc., so as to enable interactive operations such as grabbing, experimenting, and writing;

[0011] In an embodiment, the system includes a software platform, which includes VR teaching content production software, real-time communication and interaction software, and a learning management system;

[0012] VR teaching content production software, including Unity, Unreal Engine and other software to create virtual teaching scenes, design teaching courseware and interactive links, and present teaching content in the form of 3D models, animations, videos, etc., to provide students with rich and diverse learning resources;

[0013] Real-time communication and interactive software, including Zoom and Tencent Meeting, are integrated into the VR teaching platform to support voice calls, video chats, and text exchanges between teachers and students, enabling real-time interaction and Q&A, as well as group discussions, collaborative learning, and other activities.

[0014] Learning management system, used to manage students' learning progress, course schedule, and performance evaluation, such as Moodle and Blackboard. Teachers can use this system to publish teaching tasks, mark homework, and check students' learning status. Students can view course materials, submit homework, and take exams.

[0015] The software platform includes 3D virtual scenes and models, covering various disciplines and fields, such as scientific experiment scenes, historical and cultural scenes, geographical environment scenes, etc., providing students with an intuitive and vivid learning environment to help them better understand and master knowledge;

[0016] The software platform includes multimedia teaching materials, including pictures, videos, audio, animation, etc., which enrich the presentation of teaching content, make teaching more vivid and interesting, and improve students' learning enthusiasm and participation;

[0017] The software platform includes virtual characters and intelligent assistants. Virtual characters, such as virtual teachers and virtual classmates, are set up in a virtual teaching environment to interact and communicate with students and provide personalized learning guidance and help. At the same time, the intelligent assistant can answer students' questions in real time and provide learning suggestions and feedback.

[0018] The network equipment uses 5G network;

[0019] Through cloud computing technology, network devices transfer the computing and storage tasks of VR teaching to cloud servers, reducing the burden on local devices. At the same time, edge computing is used to process data at network edge nodes close to users, further reducing latency and improving the response speed and stability of the system.

[0020] The VR device includes a VR helmet and a gravity balance assist mechanism. The VR helmet is worn by students and teachers. The gravity balance assist mechanism acts on the VR helmet to prevent students and teachers from feeling uncomfortable due to the excessive weight of the VR helmet. The gravity balance assist mechanism includes a base, a rotating base, a mounting frame, a balance component and a helmet connecting frame. The rotating base is rotatably arranged on the base, the mounting frame is arranged on the rotating base, the balance component is arranged on the mounting frame, the helmet connecting frame is connected to the balance component, and the helmet connecting frame is connected to the VR helmet.

[0021] Further, the balancing assembly includes a first short rod, a second short rod, a first long rod, a third short rod, a second long rod, a third long rod, a common long rod, a connecting long rod and a rotating frame, the common long rod includes a first common section and a second common section, the first short rod, the second short rod, the first long rod and the first common section are hinged to each other to form a first parallelogram, one end corner of the first parallelogram is rotatably connected to the rotating frame, the third short rod, the second long rod, the third long rod and the second common section are hinged to each other to form a second parallelogram, the connecting end of the third short rod and the second long rod is hinged to the mounting frame, one end of the connecting long rod is hinged to the connecting end of the second short rod and the first long rod, the other end of the connecting long rod is hinged to the mounting frame, a rotating head is rotatably provided on the rotating frame, the helmet connecting frame is rotatably connected to the rotating head, the rotating axis of the rotating head and the rotating axis of the helmet connecting frame are perpendicular to each other, that is, the rotating head and the helmet connecting frame can rotate in different dimensions.

[0022] Through the above mechanism, the VR helmet can be moved and adjusted at any angle.

[0023] Furthermore, in order to achieve gravity balance, that is, when the user wears the VR helmet, the helmet will not produce a sense of oppression and discomfort, so the mounting frame is provided with a first balance spring and a second balance spring, the mounting frame is provided with a first pulley frame and a second pulley frame, the first pulley frame and the second pulley frame are provided with pulleys, the second long rod is provided with a first connector, the first connector is connected to a first cable, the first cable is connected to the pulley of the first pulley frame, and is connected to the first balance spring;

[0024] The third short rod is provided with a second connector, the second connector is connected to a second cable, and the second cable is connected to a pulley of a second pulley frame and to a second balance spring.

[0025] When the user wears a VR helmet, the balance component can support the movement and adjustment of the helmet at various angles and positions. At the same time, it is used to set the balance spring to maintain the balance force between the spring and the helmet, thereby creating a weightless wearing experience. It can completely relax the wearer's head, reduce the sense of restraint on the wearer, and make it more comfortable to wear. It is suitable for children and people who wear it for a long time.

[0026] In an embodiment, in order to improve the overall balancing component, a damping structure is provided at the rotating connection and the rotating base in the balancing component, thereby ensuring the stability of the balancing component after adjustment; in an embodiment, the damping structure can be a hydraulic damper, a friction damper, or an air damper.

[0027] Furthermore, in order to further improve the stability of the balancing assembly during adjustment, a torque compensation motor is provided on the mounting frame, which is respectively connected to the rotation connection between the balancing assembly and the mounting frame, that is, the hinge connecting the long rod and the mounting frame, and the hinge between the third short rod and the second long rod on the mounting frame;

[0028] A torque compensation motor is arranged in the rotating frame and acts on the rotating head.

[0029] Furthermore, the VR device is provided with an adjustment and fixing mechanism, which includes a lateral adjustment component and a top adjustment component, the lateral adjustment component is connected to both sides of the VR device, the top adjustment component is connected to the top of the VR device and the lateral adjustment component, the lateral adjustment component includes a first connecting component, a second connecting component and a rear adjuster, the first connecting component and the second connecting component are symmetrically arranged on both sides of the VR device, the first connecting component includes a first connecting piece, a first mounting piece, a first elastic band and a first plug-in piece, the first connecting piece is rotatably arranged on the VR device, the first mounting piece and the first connecting piece are detachably connected, the first elastic band connects the first mounting piece and the first plug-in piece, slots are provided on both sides of the rear adjuster, and the first plug-in piece is slidably plugged into the slots.

[0030] The second connecting component includes a second connecting piece, a second mounting piece, a second elastic band and a second insert. The first connecting component and the second connecting component have the same structural connection method.

[0031] Furthermore, the first plug-in piece and the second plug-in piece are toothed plates, and the first plug-in piece and the second plug-in piece are respectively inserted into the slots on both sides of the rear adjuster, and the first plug-in piece and the second plug-in piece are arranged alternately. A rear adjustment gear is provided in the rear adjuster, and the rear adjustment gear is engaged with the first plug-in piece and the second plug-in piece. When the rear adjustment gear is rotated counterclockwise, the first plug-in piece and the second plug-in piece are tightened, and when the rear adjustment gear is rotated clockwise, the first plug-in piece and the second plug-in piece are loosened, thereby adjusting the wearing firmness and comfort.

[0032] Furthermore, the top adjustment component includes a third connecting piece, a third elastic band, a third plug-in piece, an upper adjuster and a fourth connecting piece, the third connecting piece is hinged to the top of the VR device, the third elastic band is connected to the third plug-in piece and the fourth connecting piece, a slot is provided in the upper adjuster, the third plug-in piece and the upper adjuster are slidably plugged in, the third plug-in piece is a gear plate, an upper adjustment gear is provided in the upper adjuster, the upper adjustment gear and the third plug-in piece are meshed, and when the upper adjustment gear is rotated, the third plug-in piece is driven to extend and retract, thereby adjusting the wearing slack; the upper adjuster and the third connecting piece are detachably connected, and the fourth connecting piece is connected to the rear adjuster.

[0033] In this solution, the first mounting member and the first connecting member, the second mounting member and the second connecting member, the upper adjuster and the fourth connecting member can be snap-fit ​​connections, preferably, magnetic connections are adopted.

[0034] Furthermore, a worm gear structure is provided on the rear adjusting gear and the upper adjusting gear. By connecting the rear adjusting gear and the upper adjusting gear to the worm wheel, the worm gear drives the worm wheel to rotate, and then drives the rear adjusting gear or the upper adjusting gear to rotate, thereby achieving the functions of precise adjustment and limiting.

[0035] The beneficial effects achieved by the present invention using the above structure are as follows: This scheme provides a remote online education system based on VR technology, which achieves the purpose of remote online education through VR equipment and network transmission in combination with VR software, and a gravity balance assist mechanism is arranged in the VR equipment, which can produce a gravity balance effect without affecting the normal use of the VR equipment, thereby not imposing a weight pressure burden on the wearer, completely relaxing the wearer's head, reducing the sense of restraint on the wearer, and making it more comfortable to wear, which is suitable for children and long-term wearers; and an adjustment and fixing mechanism is arranged to wrap and fix the head from multiple dimensions and positions, wherein a detachable mechanism is convenient for users to quickly install and remove the helmet, and an elastic belt is arranged to provide a certain adjustment margin to avoid excessive adjustment, and an adjustable insert is arranged to facilitate precise adjustment, which is suitable for use by different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Use a state diagram for the overall structure of this solution;

[0037] Figure 2 This is a schematic diagram of the overall structure of this scheme;

[0038] Figure 3 It is the position layout diagram of the gravity balance assisting mechanism;

[0039] Figure 4 It is a connection diagram of the gravity balance assist mechanism;

[0040] Figure 5A three-dimensional diagram of the adjustment fixing mechanism;

[0041] Figure 6 A top view of the adjustment fixing mechanism;

[0042] Figure 7 is a schematic diagram of the internal structure of the rear regulator;

[0043] Figure 8 It is a schematic diagram of the structure of the top adjustment component.

[0044] Among them, 1. VR helmet; 2. Gravity balance assist mechanism; 3. Base; 4. Rotating base; 5. Mounting frame; 6. Balance assembly; 7. Helmet connecting frame; 8. First short rod; 9. Second short rod; 10. First long rod; 11. Third short rod; 12. Second long rod; 13. Third long rod; 14. Common long rod; 15. Connecting long rod; 16. Rotating frame; 17. First common section; 18. Second common section; 19. First parallelogram; 20. Second parallelogram; 21. Rotating head; 22. First balance spring; 23. Second balance spring; 24. First pulley frame; 25. Second pulley frame; 26. First connecting head; 27. First cable; 28. Second connector; 29, second cable; 30, torque compensation motor; 31, adjustment and fixing mechanism; 32, lateral adjustment assembly; 33, top adjustment assembly; 34, first connection assembly; 35, second connection assembly; 36, rear adjuster; 37, first connection member; 38, first installation member; 39, first elastic band; 40, first plug; 41, second connection member; 42, second installation member; 43, second elastic band; 44, second plug; 45, rear adjustment gear; 46, third connection member; 47, seat; 48, third elastic band; 49, third plug; 50, upper adjuster; 51, fourth connection member; 52, upper adjustment gear; 53, worm gear structure

[0045] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0048] The technical solution adopted by the present invention is as follows: The present invention provides a remote online education system based on VR technology, comprising

[0049] The first terminal is for teachers to use;

[0050] The second terminal is for students to use, and the first terminal and the second terminal are VR devices;

[0051] The server side is used to run VR software and process images and data to ensure smooth operation and real-time rendering of the visual environment;

[0052] Network equipment, including routers, switches, and network base stations, to ensure smooth network operation;

[0053] In an embodiment, the VR device further includes a VR handle, a somatosensory glove, a motion capture device, etc., so as to enable interactive operations such as grabbing, experimenting, and writing;

[0054] In an embodiment, the system includes a software platform, which includes VR teaching content production software, real-time communication and interaction software, and a learning management system;

[0055] VR teaching content production software, including Unity, Unreal Engine and other software to create virtual teaching scenes, design teaching courseware and interactive links, and present teaching content in the form of 3D models, animations, videos, etc., to provide students with rich and diverse learning resources;

[0056] Real-time communication and interactive software, including Zoom and Tencent Meeting, are integrated into the VR teaching platform to support voice calls, video chats, and text exchanges between teachers and students, enabling real-time interaction and Q&A, as well as group discussions, collaborative learning, and other activities.

[0057] Learning management system, used to manage students' learning progress, course schedule, and performance evaluation, such as Moodle and Blackboard. Teachers can use this system to publish teaching tasks, mark homework, and check students' learning status. Students can view course materials, submit homework, and take exams.

[0058] The software platform includes 3D virtual scenes and models, covering various disciplines and fields, such as scientific experiment scenes, historical and cultural scenes, geographical environment scenes, etc., providing students with an intuitive and vivid learning environment to help them better understand and master knowledge;

[0059] The software platform includes multimedia teaching materials, including pictures, videos, audio, animation, etc., which enrich the presentation of teaching content, make teaching more vivid and interesting, and improve students' learning enthusiasm and participation;

[0060] The software platform includes virtual characters and intelligent assistants. Virtual characters, such as virtual teachers and virtual classmates, are set up in a virtual teaching environment to interact and communicate with students and provide personalized learning guidance and help. At the same time, the intelligent assistant can answer students' questions in real time and provide learning suggestions and feedback.

[0061] The network equipment uses 5G network;

[0062] Through cloud computing technology, network devices transfer the computing and storage tasks of VR teaching to cloud servers, reducing the burden on local devices. At the same time, edge computing is used to process data at network edge nodes close to users, further reducing latency and improving the response speed and stability of the system.

[0063] like Figure 1-2 The VR device includes a VR helmet 1 and a gravity balance assist mechanism 2. The VR helmet 1 is worn by students and teachers. The gravity balance assist mechanism 2 acts on the VR helmet 1 to prevent students and teachers from feeling uncomfortable due to the excessive weight of the VR helmet 1. The gravity balance assist mechanism 2 includes a base 3, a rotating base 4, a mounting frame 5, a balance component 6 and a helmet connecting frame 7. The rotating base 4 is rotatably arranged on the base 3, the mounting frame 5 is arranged on the rotating base 4, the balance component 6 is arranged on the mounting frame 5, the helmet connecting frame 7 is connected to the balance component 6, and the helmet connecting frame 7 is connected to the VR helmet 1.

[0064] Among them, Figure 3The balancing assembly 6 includes a first short rod 8, a second short rod 9, a first long rod 10, a third short rod 11, a second long rod 12, a third long rod 13, a common long rod 14, a connecting long rod 15 and a rotating frame 16. The common long rod includes a first common section 17 and a second common section 18. The first short rod 8, the second short rod 9, the first long rod 10 and the first common section 17 are hinged to each other to form a first parallelogram 19. One end corner of the first parallelogram 19 is rotatably connected to the rotating frame 16. The third short rod 11, the second long rod 12, the third long rod 13, the common long rod 14, the connecting long rod 15 and the rotating frame 16. 3. The second common sections 18 are hinged to each other to form a second parallelogram 20. The connecting end of the third short rod 11 and the second long rod 12 is hinged to the mounting frame 5. One end of the connecting long rod 15 is hinged to the connecting ends of the second short rod 9 and the first long rod 10. The other end of the connecting long rod 15 is hinged to the mounting frame 5. A rotating head 21 is rotatably provided on the rotating frame 16. The helmet connecting frame 7 is rotatably connected to the rotating head 21. The rotating axis of the rotating head 21 and the rotating axis of the helmet connecting frame 7 are perpendicular to each other, that is, the rotating head 21 and the helmet connecting frame 7 can rotate in different dimensions.

[0065] Through the above mechanism, the VR helmet 1 can be moved and adjusted at any angle.

[0066] In order to achieve gravity balance, that is, when the user wears the VR helmet 1, the helmet will not produce a sense of oppression and discomfort, so the mounting frame 5 is provided with a first balance spring 22 and a second balance spring 23, such as Figure 4 The placement frame 5 is provided with a first pulley frame 24 and a second pulley frame 25, the first pulley frame 24 and the second pulley frame 25 are provided with pulleys, the second long rod 12 is provided with a first connector 26, the first connector 26 is connected to a first cable 27, the first cable 27 is connected to the pulley of the first pulley frame 24, and is connected to the first balance spring 22;

[0067] The third short rod 11 is provided with a second connector 28 , and the second connector 28 is connected to a second cable 29 . The second cable 29 is connected to a pulley of a second pulley frame 25 and is connected to a second balance spring 23 .

[0068] When the user wears the VR helmet 1, the balance component 6 can support the movement and adjustment of the helmet at various angles and positions. At the same time, it is used to set a balance spring to maintain a balance force between the spring and the helmet, thereby creating a weightless wearing experience, which can completely relax the wearer's head and reduce the wearer's sense of restraint. The wearer is more comfortable to wear and is suitable for children and long-term wearers.

[0069] In an embodiment, in order to improve the overall balancing component 6, a damping structure is provided at the rotating connection and the rotating base 4 in the balancing component 6, thereby ensuring the stability of the balancing component 6 after adjustment; in an embodiment, the damping structure can be a hydraulic damper, a friction damper, or an air damper.

[0070] In order to further improve the stability of the balancing assembly 6 during adjustment, the mounting frame 5 is provided with a torque compensation motor 30, which is respectively connected to the rotation connection between the balancing assembly 6 and the mounting frame 5, that is, the hinge connecting the long rod 15 and the mounting frame 5, and the hinge between the third short rod 11 and the second long rod 12 on the mounting frame 5;

[0071] The rotating frame 16 is provided with a torque compensation motor 30 which acts on the rotating head 21 .

[0072] like Figure 5-6 The VR device is provided with an adjustment fixing mechanism 31, the adjustment fixing mechanism 31 includes a lateral adjustment component 32 and a top adjustment component 33, the lateral adjustment component 32 is connected to both sides of the VR device, the top adjustment component 33 is connected to the top of the VR device and the lateral adjustment component 32, the lateral adjustment component 32 includes a first connection component 34, a second connection component 35 and a rear adjuster 36, the first connection component 34 and the second connection component 35 are symmetrically arranged on both sides of the VR device, the first connection component 34 includes a first connection member 37, a first installation member 38, a first elastic band 39 and a first insert 40, as shown in FIG. Figure 7 The first connecting member 37 is rotatably arranged on the VR device, the first mounting member 38 is detachably connected to the first connecting member 37, the first elastic band 39 connects the first mounting member 38 and the first plug-in piece 40, slots are arranged on both sides of the rear adjuster 36, and the first plug-in piece 40 is slidably plugged into the slots.

[0073] The second connecting component 35 includes a second connecting member 41, a second mounting member 42, a second elastic band 43 and a second inserting piece 44. The first connecting component 34 and the second connecting component 35 have the same structural connection method.

[0074] The first plug-in piece 40 and the second plug-in piece 44 are toothed plates, and the first plug-in piece 40 and the second plug-in piece 44 are respectively inserted into the slots on both sides of the rear adjuster 36, and the first plug-in piece 40 and the second plug-in piece 44 are arranged alternately. A rear adjusting gear 45 is provided in the rear adjuster 36, and the rear adjusting gear 45 and the first plug-in piece 40 and the second plug-in piece 44 are all meshed. When the rear adjusting gear 45 is rotated counterclockwise, the first plug-in piece 40 and the second plug-in piece 44 are tightened, and when the rear adjusting gear 45 is rotated clockwise, the first plug-in piece 40 and the second plug-in piece 44 are loosened, thereby adjusting the wearing firmness and comfort.

[0075] like Figure 8 The top adjustment component 33 includes a third connecting member 46, a third elastic band 48, a third plug-in piece 49, an upper adjuster 50 and a fourth connecting member 51. The third connecting member 46 is hinged to the top of the VR device. The third elastic band 48 is connected to the third plug-in piece 49 and the fourth connecting member 51. A slot is provided in the upper adjuster 50. The third plug-in piece 49 and the upper adjuster 50 are slidably plugged. The third plug-in piece 49 is a gear plate. An upper adjusting gear 52 is provided in the upper adjuster 50. The upper adjusting gear 52 is meshed with the third plug-in piece 49. When the upper adjusting gear 52 is rotated, the third plug-in piece 49 is driven to retract and retract, thereby adjusting the wearing slackness; the upper adjuster 50 and the third connecting member 46 are detachably connected, and the fourth connecting member 51 is connected to the rear adjuster 36.

[0076] In the embodiment, the first mounting member 38 and the first connecting member 37, the second mounting member 42 and the second connecting member 41, the upper adjuster 50 and the fourth connecting member 51 may be snap-connected, preferably, magnetically connected.

[0077] Furthermore, a worm gear structure 53 is provided on the rear adjusting gear 45 and the upper adjusting gear 52. By connecting the rear adjusting gear 45 and the upper adjusting gear 52 to the worm wheel, the worm gear is driven to rotate by the worm, thereby driving the rear adjusting gear 45 or the upper adjusting gear 52 to rotate, thereby achieving the functions of precise adjustment and limiting.

[0078] In the embodiment, the VR device is arranged in conjunction with the seat 47, so that the gravity balance assist mechanism 2 is arranged behind the seat 47, and the VR helmet 1 is arranged above the seat 47. Figure 1 .

[0079] When in use, the user wears the VR helmet 1 on the head, removes it through the installation and removal positions on the lateral adjustment component 32 and the top adjustment component 33 for easy wearing, and controls the rear adjustment gear 45 or the upper adjustment gear 52 to rotate by controlling the worm gear structure 53, so that the rear adjustment gear 45 drives the first plug-in piece 40 and the second plug-in piece 44 to tighten or loosen, thereby adjusting the wearing looseness at the head circumference position; the upper adjustment gear 52 drives the third plug-in piece 49 to extend and retract, thereby adjusting the wearing looseness at the top of the head. During use, when the user's head moves, the helmet connecting frame 7 rotates on the rotating head 21, the rotating head 21 rotates on the rotating frame 16, and the rotating base 4 rotates on the base 3, so as to achieve multi-dimensional rotational movement, and the position movement is achieved by the rotation between the various rods in the balance component 6, and when the balance component 6 adjusts the position, the gravity balance is achieved by stretching the balance spring, thereby eliminating the weight pressure burden applied by the wearer, completely relaxing the wearer's head, reducing the sense of restraint on the wearer, and making the wearer more comfortable. In addition, a damping structure and a torque compensation motor 30 are provided to eliminate the instability caused during the movement and adjustment process.

[0080] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0081] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A remote online education system based on VR technology, characterized in that: include: The first terminal is for teachers to use; The second terminal is for students to use, and the first terminal and the second terminal are VR devices; The server side is used to run VR software and process images and data operations; Network equipment, including routers, switches, and network base stations; A software platform comprises VR teaching content production software, real-time communication and interaction software, and a learning management system; the VR device comprises a VR helmet (1) and a gravity balance assist mechanism (2); the VR helmet (1) is worn by students and teachers, and the gravity balance assist mechanism (2) acts on the VR helmet (1); the gravity balance assist mechanism (2) comprises a base (3), a rotating base (4), a mounting frame (5), a balance component (6), and a helmet connecting frame (7); the rotating base (4) is rotatably mounted on the base (3), the mounting frame (5) is mounted on the rotating base (4), the balance component (6) is mounted on the mounting frame (5), the helmet connecting frame (7) is connected to the balance component (6), and the helmet connecting frame (7) is connected to the VR helmet (1).

2. A remote online education system based on VR technology according to claim 1, characterized in that: The balancing assembly (6) comprises a first short rod (8), a second short rod (9), a first long rod (10), a third short rod (11), a second long rod (12), a third long rod (13), a common long rod (14), a connecting long rod (15) and a rotating frame (16); the common long rod comprises a first common section (17) and a second common section (18); the first short rod (8), the second short rod (9), the first long rod (10) and the first common section (17) are hinged to each other to form a first parallelogram (19); one end corner of the first parallelogram (19) is rotatably connected to the rotating frame (16); the third short rod (11), The second long rod (12), the third long rod (13) and the second common section (18) are hinged to each other to form a second parallelogram (20); the connecting ends of the third short rod (11) and the second long rod (12) are hinged to the mounting frame (5); one end of the connecting long rod (15) is hinged to the connecting ends of the second short rod (9) and the first long rod (10); the other end of the connecting long rod (15) is hinged to the mounting frame (5); a rotating head (21) is rotatably provided on the rotating frame (16); the helmet connecting frame (7) and the rotating head (21) are rotatably connected; the rotating axis of the rotating head (21) and the rotating axis of the helmet connecting frame (7) are perpendicular to each other.

3. A remote online education system based on VR technology according to claim 2, characterized in that: The mounting frame (5) is provided with a first balance spring (22) and a second balance spring (23); the mounting frame (5) is provided with a first pulley frame (24) and a second pulley frame (25); the first pulley frame (24) and the second pulley frame (25) are provided with pulleys; the second long rod (12) is provided with a first connector (26); the first connector (26) is connected to a first cable (27); the first cable (27) is connected to the pulley of the first pulley frame (24) and is connected to the first balance spring (22); the third short rod (11) is provided with a second connector (28); the second connector (28) is connected to a second cable (29); the second cable (29) is connected to the pulley of the second pulley frame (25) and is connected to the second balance spring (23).

4. A remote online education system based on VR technology according to claim 2, characterized in that: The rotating connection in the balancing component (6) and the rotating base (4) are both provided with damping structures.

5. The remote online education system based on VR technology according to claim 2, characterized in that: The mounting frame (5) is provided with a torque compensation motor (30), which is respectively connected to the rotation connection between the balance component (6) and the mounting frame (5), that is, the hinge connecting the long rod (15) and the mounting frame (5), and the hinge between the third short rod (11) and the second long rod (12) on the mounting frame (5); the torque compensation motor (30) is provided in the rotating frame (16) to act on the rotating head (21).

6. The remote online education system based on VR technology according to claim 1, characterized in that: The VR device is provided with an adjustment fixing mechanism (31), the adjustment fixing mechanism (31) comprising a lateral adjustment component (32) and a top adjustment component (33), the lateral adjustment component (32) being connected to both sides of the VR device, the top adjustment component (33) being connected to the top of the VR device and the lateral adjustment component (32), the lateral adjustment component (32) comprising a first connection component (34), a second connection component (35) and a rear adjuster (36), the first connection component (34) and the second connection component (35) being symmetrically arranged on both sides of the VR device, the first connection component (34) comprising a first connection member (37), a first installation member (38), and a rear adjuster (36). 38), a first elastic band (39) and a first plug-in piece (40), the first connecting piece (37) is rotatably arranged on the VR device, the first mounting piece (38) and the first connecting piece (37) are detachably connected, the first elastic band (39) connects the first mounting piece (38) and the first plug-in piece (40), slots are provided on both sides of the rear adjuster (36), and the first plug-in piece (40) and the slots are slidably plugged; the second connecting component (35) includes a second connecting piece (41), a second mounting piece (42), a second elastic band (43) and a second plug-in piece (44), and the structural connection method of the first connecting component (34) and the second connecting component (35) is the same.

7. A remote online education system based on VR technology according to claim 6, characterized in that: The first plug piece (40) and the second plug piece (44) are toothed plates. The first plug piece (40) and the second plug piece (44) are respectively plugged into slots on both sides of the rear adjuster (36). The first plug piece (40) and the second plug piece (44) are arranged alternately. A rear adjusting gear (45) is arranged in the rear adjuster (36). The rear adjusting gear (45) is meshed with the first plug piece (40) and the second plug piece (44).

8. The remote online education system based on VR technology according to claim 6, characterized in that: The top adjustment component (33) comprises a third connecting member (46), a third elastic band (48), a third plug-in sheet (49), an upper adjuster (50) and a fourth connecting member (51); the third connecting member (46) is hinged to the top of the VR device; the third elastic band (48) is connected to the third plug-in sheet (49) and the fourth connecting member (51); a slot is provided in the upper adjuster (50); the third plug-in sheet (49) and the upper adjuster (50) are slidably plugged in; the third plug-in sheet (49) is a toothed plate; an upper adjustment gear (52) is provided in the upper adjuster (50); the upper adjustment gear (52) and the third plug-in sheet (49) are meshed; the upper adjuster (50) and the third connecting member (46) are detachably connected; and the fourth connecting member (51) is connected to the rear adjuster (36).

9. The remote online education system based on VR technology according to claim 2, characterized in that: Magnetic connections are adopted between the first installation and removal component (38) and the first connecting component (37), between the second installation and removal component (42) and the second connecting component (41), and between the upper regulator (50) and the fourth connecting component (51).

10. The remote online education system based on VR technology according to claim 8, characterized in that: The rear adjusting gear (45) and the upper adjusting gear (52) are both provided with a worm gear structure (53), and the rear adjusting gear (45) and the upper adjusting gear (52) are connected to the worm gear.

Images