Portable electroencephalogram monitoring device

Abstract

The invention relates to the technical field of VR (virtual reality) electroencephalogram monitoring, in particular to a portable electroencephalogram monitoring device which comprises a head band; a driving structure is installed on the top face of the head band and comprises an installation frame, the installation frame is fixedly installed on the top face of the head band, a fixing block is fixedly installed at the top end of the installation frame, a telescopic long strip is slidably installed at the front end of the inner side of the fixing block, and a hollow sliding groove is formed in the bottom face of the telescopic long strip. A gear groove is formed in the rear end of the interior of the empty sliding groove. According to the detection device, the glasses legs are hooked on the ears of a user, and the glasses frame is connected with the telescopic strip through the rubber hook and the second gear, so that the telescopic strip can drive the VR equipment main body to be close to or far away from the head band, and when the VR equipment main body is worn on the face or taken down from the face, the glasses frame is driven to rotate around the ears through the glasses legs; the wearing experience of the myopic glasses can be ensured, and the switching effect between the VR equipment main body and the myopic glasses is improved.

Description

Technical Field

[0001] The present invention relates to the field of VR electroencephalogram monitoring technology, and in particular to a portable electroencephalogram monitoring device. Background Art

[0002] EEG is an electrophysiological signal generated by the electrophysiological activity of brain nerve cells and collected from the surface of the scalp. VR is a collection of simulation technology, computer graphics, human-computer interface technology, multimedia technology, sensor technology, network technology and other technologies. VR mainly includes simulated environment, perception, natural skills and sensor equipment. The feedback software developed based on VR technology has lively and rich content and a strong sense of intrusion in user experience, which can adjust the functional state of the brain to achieve therapeutic purposes.

[0003] In this regard, China applied for patent number: CN202210889205.4, which discloses an intelligent wearable VR device, including a headband, a strap fixedly installed on the top of the headband, a semi-annular groove symmetrically opened at the bottom of the headband, a slider slidably installed in the semi-annular groove, a VR glasses composed of two VR single lenses arranged at the bottom of the slider, a cavity opened inside the headband, a rotating rod symmetrically rotated and installed in the cavity, and a winding disk arranged on the external fixed sleeve of the rotating rod. The invention can realize the convenient switching between VR glasses and myopia glasses, so that myopic users can use myopia glasses without taking off VR glasses, which improves the convenience of the overall use of VR equipment, and can realize the outward push of VR single lens while switching VR single lens, so that space can be created between the eye area and VR single lens, avoiding the situation that the VR single lens sticks to the eye area when separated, causing discomfort to the eye area, and is worthy of promotion and use. The data shows that when the user wears the helmet, he first adjusts the helmet to a position where the eyes can see clearly, tightens the elastic band, and tightens the rotary button at the back, and then adjusts the brain wave electrode to the correct position so that the electrode can contact the skin. In this way, the brain wave data is collected. Our equipment integrates the brain wave device with the VR helmet, making it an integrated VR helmet that can collect brain wave and eye movement data. In a single-modal model, it can achieve an accuracy of up to 88%, and in a multi-modal model, it can achieve an accuracy of up to 92%.

[0004] The device can clamp the myopic glasses through the splint, so that the myopic glasses can be easily switched when the VR device is taken off. However, the splint can only fix the frames of the myopic glasses but cannot limit the temples. The movable temples will poke the user's face when the myopic glasses are switched, causing inconvenience to the user. The temples will also block the user's field of vision, which limits the use of the device.

[0005] Therefore, in order to solve the above problems, a portable EEG monitoring device is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a portable EEG monitoring device to solve the problem that the device in the prior art proposed in the above background technology can clamp the myopic glasses through a splint so that the myopic glasses can be easily switched when the VR device is taken off, but the splint can only fix the frames of the myopic glasses but cannot limit the temples. The movable temples will poke the user's face when the myopic glasses are switched, causing inconvenience to the user, and the temples will also block the user's field of view, which limits the use of the device.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a portable EEG monitoring device, comprising: a headband;

[0008] A driving structure is installed on the top surface of the headband, and the driving structure includes a mounting frame, the mounting frame is fixedly installed on the top surface of the headband, a fixing block is fixedly installed on the top of the mounting frame, a telescopic strip is slidably installed on the inner front end of the fixing block, an empty slide groove is provided on the bottom surface of the telescopic strip, a gear groove is provided on the inner rear end of the empty slide groove, a threaded rod is movably installed on the inner side of the fixing block through a bearing, a driving motor is fixedly installed on the rear wall of the fixing block, a fixing frame is fixedly connected to the front side of the fixing block, a rack plate is welded to the front end of the bottom of the fixing frame, a rotating arm is movably installed on the bottom surface of the front end of the telescopic strip through a bearing, a first gear is welded to the top of the rotating arm, and a VR device body is fixedly installed on the bottom end of the rotating arm.

[0009] Preferably, a switching structure is installed on the driving structure, and the switching structure includes a second gear, and the second gear is movably installed on the front end of the bottom of the fixed block through a bearing, and both ends of the second gear are fixedly connected with a coil spring, and the middle part of the second gear is fixedly connected with a rope winding drum, and a connecting pull rope is wound on the surface of the rope winding drum, and the bottom end of the connecting pull rope is connected to a rubber hook, and the bottom end of the rubber hook is hooked with a glasses frame, and the glasses frame is rotatably connected with a glasses leg.

[0010] Preferably, the threaded rod is threadably connected to the telescopic strip, and the output end of the drive motor is fixedly connected to the threaded rod.

[0011] Preferably, the rotating arm is located at the lower side of the fixing frame, and the first gear and the rack plate cooperate with each other.

[0012] Preferably, a torsion spring is provided at the connection between the rotating arm and the telescopic strip, and the torsion spring is used to fix the angle of the rotating arm on the telescopic strip.

[0013] Preferably, the upper end of the second gear is located inside the empty slide groove, and the second gear cooperates with the gear groove.

[0014] Preferably, one end of the coil spring is fixedly connected to the bottom surface of the fixing block.

[0015] Preferably, the glasses frame and the glasses legs are both tilted and located on the rear side of the VR device body.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the detection device of the present invention hooks the temples of the glasses on the ears of the user, and the glasses frame is connected to the telescopic strip through the rubber hook and the second gear, and the telescopic strip can drive the VR device body to move closer to or away from the headband, so that when the VR device body is worn on the face or taken off the face, the glasses frame is driven to rotate around the ears through the temples, thereby ensuring the wearing experience of the myopia glasses and improving the switching effect between the VR device body and the myopia glasses.

[0017] A driving structure and a switching structure are provided. When the headband is worn on the head, the telescopic strip extends from the fixed block, the VR device body is away from the headband, and the rotating arm is in a horizontal state, while the VR device body is in a vertical state. At the same time, the connecting rope is extended from the rope reel, the glasses frame is placed on the user's nose bridge, the glasses legs are placed on the user's ears, and the rubber hook at the bottom of the connecting rope is hooked on the middle of the glasses frame;

[0018] When the VR device body needs to be used, the driving motor is started to drive the threaded rod to rotate. The threaded rod is threadedly connected to the telescopic strip. The rotation of the threaded rod drives the telescopic strip to move in the fixed block, so that the telescopic strip retracts backward into the fixed block. When the telescopic strip moves, the rotating arm is driven to move relative to the fixed frame. The rotating arm on the rotating arm is engaged with the rack plate on the fixed frame. When the rotating arm moves, the first gear and the rack plate are used to reversely rotate at the end of the telescopic strip, so that the backward swing of the rotating arm is changed from horizontal to vertical state, and it is kept fixed under the action of the torsion spring. The rotating arm drives the VR device body to change from vertical to horizontal state, and the VR device body can be located in front of the user's eyes.

[0019] The upper end of the second gear is located in the empty slide groove and meshes with the gear groove. When the telescopic strip moves inside the fixed block, the second gear can rotate clockwise on the bottom surface of the fixed block with the cooperation of the gear groove. The rotation of the second gear is to wind up the connecting pull rope through the rope reel to pull the glasses frame through the rubber hook, so that the glasses frame rises from the user's nose bridge, so as to pull the glasses frame from the front side of the user's eyes, so that the VR device body can fit the user's eyes backwards, and the VR device body can be conveniently worn. When the second gear is separated from the gear groove, the second gear is kept fixed under the action of the coil spring;

[0020] When it is necessary to switch to the use of myopia glasses, the drive motor is started to drive the threaded rod to rotate, and the telescopic strip is extended forward from the fixed block, which can drive the rotating arm and the VR device body away from the user's face. At this time, the second gear slides in the empty slide groove. When the VR device body is away from one end of the user's face, the continued movement of the telescopic strip can drive the connecting rope to lengthen through the cooperation of the second gear and the gear groove, so that the glasses frame can be lowered. The glasses frame rotates through the cooperation of the glasses legs and the ears, and can be placed on the bridge of the nose and located in front of the eyes, which is convenient for users to use myopia glasses for activities;

[0021] The rotating arm moves on the bottom surface of the fixed frame. When the first gear is in contact with the rack plate, the continued movement of the telescopic strip drives the rotating arm to rotate clockwise on the telescopic strip through the engagement of the first gear and the rack plate, so that the VR device body is transformed from a horizontal state to a vertical state, and can be moved upward from the front of the user's eyes, thereby reducing obstruction to the user's line of sight and ensuring the switching experience between the VR device body and the myopic glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic front view of the structure of the present invention;

[0023] Figure 2 It is a bottom view schematic diagram of the structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure explosion of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure explosion of the fixing block of the present invention;

[0026] Figure 5 It is a bottom view schematic diagram of the structure of the empty slide groove and the gear groove of the present invention;

[0027] Figure 6 It is a bottom view schematic diagram of the structure of the telescopic strip of the present invention;

[0028] Figure 7 This is an exploded schematic diagram of the structure of the telescopic strip of the present invention;

[0029] Figure 8 is a schematic structural diagram of the second gear and the coil spring of the present invention;

[0030] Fig. 9 This is a schematic diagram of the structure of the VR device body in use state of the present invention;

[0031] Fig.10 This is a schematic diagram of the state structure of the VR device body switching the glasses frame of the present invention.

[0032] In the figure: 1. headband; 2. driving structure; 21. mounting frame; 22. fixing block; 23. telescopic strip; 24. empty slide groove; 25. gear groove; 26. threaded rod; 27. driving motor; 28. fixing frame; 29. ​​rack plate; 210. rotating arm; 211. first gear; 212. VR device body; 3. switching structure; 31. second gear; 32. coil spring; 33. rope reel; 34. connecting pull rope; 35. rubber hook; 36. glasses frame; 37. glasses leg. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 10 , an embodiment provided by the present invention:

[0035] The headband 1, drive motor 27, VR device body 212, glasses frame 36 and glasses legs 37 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0036] A portable electroencephalogram monitoring device comprises: a headband 1;

[0037] The top surface of the headband 1 is provided with a driving structure 2, and the driving structure 2 includes a mounting frame 21, the mounting frame 21 is fixedly mounted on the top surface of the headband 1, a fixing block 22 is fixedly mounted on the top of the mounting frame 21, a telescopic strip 23 is slidably mounted on the inner front end of the fixing block 22, an empty slide groove 24 is provided on the bottom surface of the telescopic strip 23, a gear groove 25 is provided on the inner rear end of the empty slide groove 24, a threaded rod 26 is movably mounted on the inner side of the fixing block 22 through a bearing, a driving motor 27 is fixedly mounted on the rear wall of the fixing block 22, and a front surface of the fixing block 22 is fixedly mounted. A fixed frame 28 is fixedly connected, a rack plate 29 is welded to the front end of the bottom of the fixed frame 28, a rotating arm 210 is movably mounted on the bottom surface of the front end of the telescopic strip 23 through a bearing, a first gear 211 is welded to the top of the rotating arm 210, and a VR device body 212 is fixedly mounted on the bottom end of the rotating arm 210. The VR device body 212 can move back and forth on the front side of the user's face so that the VR device body 212 can be worn on the user's face or removed from the user's face, thereby improving the functionality of the device and ensuring the user experience of the device.

[0038] Furthermore, a switching structure 3 is installed on the driving structure 2, and the switching structure 3 includes a second gear 31, and the second gear 31 is movably installed on the front end of the bottom of the fixed block 22 through a bearing. Coil springs 32 are fixedly connected to both ends of the second gear 31, and a rope reel 33 is fixedly connected to the middle part of the second gear 31. A connecting pull rope 34 is wound on the surface of the rope reel 33, and a rubber hook 35 is connected to the bottom end of the connecting pull rope 34. A glasses frame 36 is hooked on the bottom end of the rubber hook 35, and a glasses leg 37 is rotatably connected to the glasses frame 36. By hooking the glasses leg 37 on the ear of the user, and the glasses frame 36 is connected to the telescopic strip 23 through the rubber hook 35 and the second gear 31, the VR device body 212 can be driven by the telescopic strip 23 to approach or move away from the headband 1, so that when the VR device body 212 is worn on the face or removed from the face, the glasses frame 36 is driven to rotate around the ear through the glasses leg 37, which can ensure the wearing experience of the myopic glasses and improve the switching effect between the VR device body 212 and the myopic glasses.

[0039] Furthermore, the threaded rod 26 is threadedly connected to the telescopic strip 23, and the output end of the drive motor 27 is fixedly connected to the threaded rod 26. The drive motor 27 provides power for the rotation of the threaded rod 26. The rotation of the threaded rod 26 can drive the telescopic strip 23 to move back and forth in the fixed block 22, so as to realize the front and back movement of the VR device body 212 on the user's face, thereby ensuring the convenience of operation of the device.

[0040] Furthermore, the rotating arm 210 is located at the lower side of the fixed frame 28, and the first gear 211 cooperates with the rack plate 29, so that the rotating arm 210 can move at the lower side of the fixed frame 28. When the rotating arm 210 moves at the rear side of the fixed frame 28, it will not contact the rack plate 29, and thus will not cause the rotating arm 210 and the VR device body 212 to deflect, so that the VR device body 212 can be deflected after being away from the user's face for a certain distance, avoiding friction with the user's skin, causing inconvenience, and reserving space for the descending movement of the glasses frame 36.

[0041] Furthermore, a torsion spring is provided at the connection between the rotating arm 210 and the telescopic strip 23. The torsion spring is used to fix the angle of the rotating arm 210 on the telescopic strip 23. When the rotating arm 210 is located at the rear end of the bottom surface of the fixed frame 28, the rotating arm 210 can maintain a fixed angle under the action of the torsion spring to prevent the VR device body 212 from shaking, and ensure that the VR device body 212 has a certain force when it fits the user's face to ensure the fit effect and avoid light leakage or looseness that affects the user experience.

[0042] Furthermore, the upper end of the second gear 31 is located on the inner side of the empty slide groove 24, and the second gear 31 cooperates with the gear groove 25. The second gear 31 can slide in the empty slide groove 24, so that when the VR device body 212 is away from the user's face, the second gear 31 remains fixed, so that the glasses frame 36 will not drop, thereby avoiding motion interference between the glasses frame 36 and the VR device body 212, affecting the switching experience.

[0043] Furthermore, one end of the coil spring 32 is fixedly connected to the bottom surface of the fixed block 22, and the coil spring 32 provides power for the second gear 31 to maintain a fixed angle on the bottom surface of the fixed block 22, so that the second gear 31 is located in the empty slide groove 24. When separated from the gear groove 25, the rope drum 33 can stably reel up the connecting rope 34, so that the rubber hook 35 can stably hook up the glasses frame 36 to ensure that the glasses frame 36 is located on the upper side of the VR device body 212, thereby ensuring the user experience of the VR device body 212.

[0044] Furthermore, the glasses frame 36 and the glasses legs 37 are both tilted and located on the rear side of the VR device body 212. The glasses frame 36 is located on the user's forehead, so that the glasses frame 36 does not need to be taken off to leave space for wearing the VR device body 212 on the user's face, and the position of the glasses legs 37 is fixed and does not need to be moved. When the glasses frame 36 moves, it can be limited to ensure the switching experience of myopia glasses. The back and forth reciprocating motion of the VR device body 212 can drive the glasses frame 36 and the glasses legs 37 to deflect and move in the up and down directions, so as to achieve smooth switching between the VR device body 212 and the glasses frame 36, thereby ensuring the user's wearing experience.

[0045] Working principle: Before use, the headband 1 is worn on the head, at which time the telescopic strip 23 extends from the fixed block 22, the VR device body 212 is away from the headband 1, and the rotating arm 210 is in a horizontal state, while the VR device body 212 is in a vertical state, and at the same time, the connecting rope 34 is extended from the rope reel 33, the glasses frame 36 is placed on the user's nose bridge, the glasses legs 37 are placed on the user's ears, and the rubber hook 35 at the bottom of the connecting rope 34 is hooked on the middle of the glasses frame 36;

[0046] When the VR device body 212 needs to be used, the driving motor 27 is started to drive the threaded rod 26 to rotate. The threaded rod 26 is threadedly connected to the telescopic strip 23. The rotation of the threaded rod 26 drives the telescopic strip 23 to move in the fixed block 22, so that the telescopic strip 23 retracts backward into the fixed block 22. When the telescopic strip 23 moves, it drives the rotating arm 210 to move relative to the fixed frame 28. The rotating arm 210 on the rotating arm 210 is engaged with the rack plate 29 on the fixed frame 28. When the rotating arm 210 moves, it rotates reversely at the end of the telescopic strip 23 through the first gear 211 and the rack plate 29, so that the backward swing of the rotating arm 210 is changed from horizontal to vertical, and is kept fixed under the action of the torsion spring. The rotating arm 210 drives the VR device body 212 from vertical to horizontal, and the VR device body 212 can be located in front of the user's eyes.

[0047] The upper end of the second gear 31 is located in the empty slide groove 24 and meshes with the gear groove 25. When the telescopic strip 23 moves inside the fixed block 22, the second gear 31 can rotate clockwise on the bottom surface of the fixed block 22 with the cooperation of the gear groove 25. The rotation of the second gear 31 is to reel in the connecting pull rope 34 through the rope reel 33, so as to pull the glasses frame 36 through the rubber hook 35, so that the glasses frame 36 rises from the user's nose bridge, so as to pull the glasses frame 36 from the front side of the user's eyes, so that the VR device body 212 can fit the user's eyes backwards, and the VR device body 212 can be conveniently worn. When the second gear 31 is separated from the gear groove 25, the second gear 31 is kept fixed under the action of the coil spring 32;

[0048] When it is necessary to switch to the myopia glasses, the drive motor 27 is started to drive the threaded rod 26 to rotate, and the telescopic strip 23 is extended forward from the fixed block 22, which can drive the rotating arm 210 and the VR device body 212 away from the user's face. When the rotating arm 210 moves behind the fixed frame 28, it will not contact the rack plate 29, and will not drive the rotating arm 210 and the VR device body 212 to deflect, so that the VR device body 212 can be deflected after being away from the user's face for a distance, avoiding friction with the user's skin and causing inconvenience, and the glasses frame 3 6, and the second gear 31 slides in the empty slide groove 24. When the VR device body 212 is away from one end of the user's face, the continued movement of the telescopic strip 23 can drive the connecting rope 34 to lengthen through the cooperation of the second gear 31 and the gear groove 25, and the glasses frame 36 can be lowered to avoid motion interference between the glasses frame 36 and the VR device body 212, which affects the switching experience. The glasses frame 36 rotates under the cooperation of the glasses legs 37 and the ears, and can be placed on the bridge of the nose and located in front of the eyes, which is convenient for users to use myopia glasses for activities;

[0049] The rotating arm 210 moves on the bottom surface of the fixed frame 28. When the first gear 211 is in contact with the rack plate 29, the continued movement of the telescopic strip 23 drives the rotating arm 210 to rotate clockwise on the telescopic strip 23 through the engagement of the first gear 211 and the rack plate 29, so that the VR device body 212 is transformed from a horizontal state to a vertical state, and can be moved upward from the front side of the user's eyes, thereby reducing the obstruction of the user's line of sight and ensuring the switching experience between the VR device body 212 and the myopic glasses.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A portable electroencephalogram monitoring device, comprising: Headband (1); Features: The top surface of the headband (1) is provided with a driving structure (2), and the driving structure (2) comprises a mounting frame (21), the mounting frame (21) is fixedly mounted on the top surface of the headband (1), a fixing block (22) is fixedly mounted on the top of the mounting frame (21), a telescopic strip (23) is slidably mounted on the inner front end of the fixing block (22), an empty slide groove (24) is provided on the bottom surface of the telescopic strip (23), a gear groove (25) is provided on the inner rear end of the empty slide groove (24), and the inner side of the fixing block (22) is provided with a shaft. A threaded rod (26) is movably mounted on the bearing, a driving motor (27) is fixedly mounted on the rear wall of the fixed block (22), a fixing frame (28) is fixedly connected to the front of the fixed block (22), a rack plate (29) is welded to the front end of the bottom of the fixing frame (28), a rotating arm (210) is movably mounted on the bottom surface of the front end of the telescopic strip (23) through a bearing, a first gear (211) is welded to the top of the rotating arm (210), and a VR device body (212) is fixedly mounted on the bottom end of the rotating arm (210).

2. A portable EEG monitoring device according to claim 1, characterized in that: The driving structure (2) is provided with a switching structure (3), the switching structure (3) comprising a second gear (31), the second gear (31) being movably mounted on the front end of the bottom of the fixed block (22) via a bearing, the two ends of the second gear (31) being fixedly connected with coil springs (32), the middle of the second gear (31) being fixedly connected with a rope reel (33), the surface of the rope reel (33) being wound with a connecting rope (34), the bottom end of the connecting rope (34) being connected with a rubber hook (35), the bottom end of the rubber hook (35) being hooked with a glasses frame (36), and the glasses frame (36) being rotatably connected with a glasses leg (37).

3. A portable EEG monitoring device according to claim 1, characterized in that: The threaded rod (26) is threadably connected to the telescopic strip (23), and the output end of the driving motor (27) is fixedly connected to the threaded rod (26).

4. A portable EEG monitoring device according to claim 1, characterized in that: The rotating arm (210) is located at the lower side of the fixing frame (28), and the first gear (211) and the rack plate (29) cooperate with each other.

5. The portable EEG monitoring device according to claim 1, characterized in that: A torsion spring is provided at the connection between the rotating arm (210) and the telescopic strip (23), and the torsion spring is used to fix the angle of the rotating arm (210) on the telescopic strip (23).

6. A portable EEG monitoring device according to claim 2, characterized in that: The upper end of the second gear (31) is located inside the empty slide groove (24), and the second gear (31) and the gear groove (25) cooperate with each other.

7. A portable EEG monitoring device according to claim 2, characterized in that: One end of the coil spring (32) is fixedly connected to the bottom surface of the fixed block (22).

8. A portable EEG monitoring device according to claim 2, characterized in that: The glasses frame (36) and glasses legs (37) are both tilted and located on the rear side of the VR device body (212).

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