Head-mounted device based on brain-computer interface

Abstract

The utility model belongs to the technical field of wearable equipment, and particularly relates to head-mounted equipment based on a brain-computer interface, which comprises a mounting part for providing a fixing and mounting platform for the overall installation of the equipment; an upper top part is arranged at the upper end of the mounting part, the upper top part is matched with the head top of a collection target, related data of the head top of the target are collected through the upper top part, and the collected data are analyzed; a forehead front part is arranged at one end of the mounting part, the forehead front part is matched with the forehead of a collected target, forehead data of the target is collected through the forehead front part, and the collected data is sent to the upper top part for data analysis; the upper top part comprises a mounting shell, a control button, an adjusting knob, a rotating bolt, an acquisition probe and a controller. The head electric signal acquisition device can be firmly worn on the head of a target and can be flexibly adjusted according to the head shape of the target, so that the acquisition probe and the contact block can be in close contact with the head all the time, and the accuracy of head electric signal acquisition is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of wearable devices, and particularly relates to a head-mounted device based on a brain-computer interface. Background Art

[0002] Non-invasive brain-computer interface technology is a method of collecting electroencephalogram (EEG) signals from the brain surface, using signal processing and pattern recognition algorithms to convert the obtained signals into instruction codes readable by a computer or other peripherals, and then realizing the transmission and control of instructions, thereby achieving natural human-computer interaction. Specifically, non-invasive EEG signal acquisition is a method of observing brain activity signals by collecting a large number of electrophysiological signals;

[0003] Currently, the most popular and feasible measurement method is to use a spherical electrode cap. The electrode cap collects the electrical signals on the scalp surface, and then processes these signals through devices such as amplifiers and filters. Subsequently, the processed data is transmitted to a computer for further data processing to obtain useful information;

[0004] When the electrode cap collects the EEG signals on the scalp surface, it needs to be closely attached to the scalp for more accurate collection. However, the human head is not a uniform circle. When wearing a head-mounted device, some fixed electrode caps cannot be closely attached to the scalp to collect data on the target, resulting in a decrease in the accuracy of the electrode cap collecting electrical signals and a long wearing adjustment time, affecting the user experience. Summary of the Utility Model

[0005] The purpose of this utility model is to provide a head-mounted device based on a brain-computer interface, which can be firmly worn on the target head and flexibly adjusted according to the target's head shape, so that the acquisition probe and the contact block can always be in close contact with the head to improve the accuracy of collecting head electrical signals.

[0006] The technical solution adopted by this utility model is specifically as follows:

[0007] A head-mounted device based on a brain-computer interface includes a mounting part, and the mounting part provides a fixed and installation platform for the overall installation of the device;

[0008] The upper end of the mounting part is provided with an upper top, and the upper top cooperates with the top of the acquisition target to collect relevant data on the top of the target's head and analyze the collected data;

[0009] One end of the mounting part is provided with a front forehead part, and the front forehead part cooperates with the front of the acquisition target to collect data on the front of the target and send the collected data to the upper top for data analysis;

[0010] The upper top part includes a mounting housing, a control button, an adjustment knob, a rotating bolt, a collection probe and a controller. One end of the mounting housing is fixedly connected to the upper end of the mounting part. The control button is fixedly connected to the upper end of the mounting housing. The adjustment knob is rotatably arranged inside the mounting housing. The upper end of the rotating bolt is clamped inside the adjustment knob, and the upper end of the rotating bolt is rotatably connected to the inside of the mounting housing. The inside of the collection probe is threadedly connected to the outer edge of the rotating bolt. The controller is fixedly connected to the inside of the mounting housing, and the controller is electrically connected to the control button and the collection probe.

[0011] This utility model is further configured as: a limiting ring is integrally formed at the upper end of the rotating bolt, and the limiting ring is arranged inside the mounting housing.

[0012] This utility model is further configured as: a cross groove is formed at the upper end of the rotating bolt, and a limiting plane is formed on one side of the upper end of the rotating bolt. The limiting plane is matched with the inside of the adjustment knob.

[0013] This utility model is further configured as: the collection probe includes a collection housing, a mounting cover plate, a contact head and an elastic resetting member. The collection housing is arranged inside the mounting housing. The mounting cover plate is fixedly connected to the upper end of the collection housing, and the inside of the mounting cover plate is threadedly connected to the outer edge of the rotating bolt. The contact head is slidably arranged inside the lower end of the mounting housing. The contact head is electrically connected to the controller. The elastic resetting member is arranged inside the mounting cover plate and the contact head.

[0014] This utility model is further configured as: the mounting part includes a rear guard plate, a rear gasket, a connecting member, a connecting belt and a regulator. The rear guard plate is matched with the back of the head of the collection target. The rear gasket is arranged inside the rear guard plate. There are two connecting members. The two connecting members are respectively slidably arranged inside the two ends of the rear guard plate. The other ends of the two connecting members are fixedly connected to the two ends of the front forehead part. There are two connecting belts. One end of one of the connecting belts is fixedly connected to the upper end of the rear guard plate. The other end of the connecting belt is fixedly connected to one end of the mounting housing. One end of the other connecting belt is fixedly connected to the other end of the mounting housing. The other end of the connecting belt is fixedly connected to the front forehead part. The regulator is rotatably arranged outside the rear guard plate, and the regulator is fixedly connected to the other ends of the two connecting members through a cable.

[0015] This utility model is further configured as: the front forehead part includes a front forehead seat and a contact block. The two ends of the front forehead seat are fixedly connected to the other ends of the corresponding connecting members, and the upper end of the front forehead seat is fixedly connected to the other end of the corresponding connecting belt. There are multiple contact blocks, and the contact blocks are fixedly connected to the inside of the front forehead seat. The contact blocks are electrically connected to the controller.

[0016] The technical effects achieved by this utility model are:

[0017] A head-mounted device based on a brain-computer interface of the present utility model adopts a design of an installation part and a forehead part. By opening the connecting piece, the rear guard plate is adjusted to the target posterior brain, the inner side of the upper top contacts the target head top, and the forehead part is adjusted to contact the target forehead. Due to the elastic characteristics of the connecting belt itself, the rear guard plate and the forehead part are always attached to the target's head, improving the fitting degree of the target's wearing, and further increasing the acquisition sensitivity of the forehead part.

[0018] A head-mounted device based on a brain-computer interface of the present utility model adopts a design of the upper top. By rotating the adjustment knob, the rotating bolt is driven to rotate together. The rotation of the rotating bolt can drive the acquisition probe connected by threads to extend or retract into the interior of the installation housing. The extension and retraction operations of the acquisition probe can make the acquisition probe adapt to different head shapes, ensure close contact between the probe and the scalp, and guarantee the accuracy of the acquisition of electrical signal data. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall embodiment of the present utility model;

[0020] Figure 2 is an embodiment of the present utility model Figure 1 schematic diagram at position A in;

[0021] Figure 3 is a top view of the overall embodiment of the present utility model;

[0022] Figure 4 is a bottom view of the overall embodiment of the present utility model;

[0023] Figure 5 is an embodiment of the present utility model Figure 4 schematic diagram at position B in;

[0024] Figure 6 is a side sectional view of the overall embodiment of the present utility model;

[0025] Figure 7 is an embodiment of the present utility model Figure 6 schematic diagram at position C in;

[0026] Figure 8 is a side sectional view of the upper top of the embodiment of the present utility model;

[0027] Figure 9 is an internal sectional view of the installation housing of the embodiment of the present utility model.

[0028] In the drawings, the list of components represented by each reference numeral is as follows:

[0029] 1. Installation part; 101. Rear guard plate; 102. Rear gasket; 103. Connector; 104. Connecting belt; 105. Regulator; 2. Upper top part; 201. Installation housing; 202. Control button; 203. Adjustment knob; 204. Rotating bolt; 205. Acquisition probe; 2051. Acquisition housing; 2052. Installation cover plate; 2053. Contact; 2054. Elastic reset part; 206. Controller; 3. Frontal part; 301. Frontal seat; 302. Contact block. Detailed implementation manner

[0030] In order to make the purpose and advantages of the present utility clearer and more understandable, the following specifically describes the present utility in combination with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility, and does not strictly limit the scope of protection specifically claimed by the present utility.

[0031] As Figures 1 to 8 shown, a head-mounted device based on a brain-computer interface includes an installation part 1, and the installation part 1 provides a fixed and installation platform for the overall installation of the device;

[0032] The upper end of the installation part 1 is provided with an upper top part 2. The upper top part 2 cooperates with the top of the head of the acquisition target, collects relevant data of the top of the head of the target through the upper top part 2, and analyzes the collected data;

[0033] One end of the installation part 1 is provided with a frontal part 3. The frontal part 3 cooperates with the front of the forehead of the acquisition target, collects the frontal data of the target through the frontal part 3, and sends the collected data to the upper top part 2 for data analysis;

[0034] The upper top part 2 includes an installation housing 201, a control button 202, an adjustment knob 203, a rotating bolt 204, an acquisition probe 205 and a controller 206. One end of the installation housing 201 is fixedly connected to the upper end of the installation part 1. The control button 202 is fixedly connected to the upper end of the installation housing 201. The adjustment knob 203 is rotatably arranged inside the installation housing 201. The upper end of the rotating bolt 204 is clamped inside the adjustment knob 203, and the upper end of the rotating bolt 204 is rotatably connected to the inside of the installation housing 201. The inside of the acquisition probe 205 is threadedly connected to the outer edge of the rotating bolt 204. The controller 206 is fixedly connected to the inside of the installation housing 201, and the controller 206 is electrically connected to the control button 202 and the acquisition probe 205. The controller 206 is electrically connected to an external computer.

[0035] Specifically, when the device needs to be worn, the entire installation part 1 is worn on the top of the head, so that the inner side of the upper top part 2 contacts the target top of the head, and the front forehead part 3 is adjusted to the target forehead. Then, rotate the adjuster 105 to reel in the cable, thereby driving the connecting piece 103 to slide inside the rear guard plate 101. By the sliding connecting piece 103, the inner circumference size of the combination of the front forehead part 3, the connecting piece 103, and the rear guard plate 101 is changed to adapt to the head circumferences of different targets, so that the upper top part 2 and the front forehead part 3 are in close contact with the target head. At this time, the entire device is fixed on the target head;

[0036] Then, rotate the adjustment knob 203 to drive the rotating bolt 204 to rotate together. The rotation of the rotating bolt 204 can drive the thread-connected acquisition probe 205 to extend or retract into the installation housing 201. Through the operations of extending and retracting the acquisition probe 205, not only can the acquisition probe 205 adapt to different head shapes, but also the acquisition probe 205 can be in close contact with the scalp to ensure the accuracy of the acquisition of electro-signal data;

[0037] Then, start the acquisition probe 205 and the touch block 302 through the control button 202. The acquisition probe 205 and the touch block 302 send the acquired data to the controller 206 for analysis and processing. The controller 206 is a main board integrated with a computing chip, so as to achieve the purpose of collecting electro-signal information of the brain scalp.

[0038] As Figure 7 shown, a limit ring is integrally formed at the upper end of the rotating bolt 204. The limit ring is arranged inside the installation housing 201. Through the cooperation of the limit ring and the adjustment knob 203, the upper end of the rotating bolt 204 can be fixed inside the installation housing 201 to prevent the rotating bolt 204 from falling out of the inside of the installation housing 201.

[0039] As Figure 2 shown, a cross slot is opened at the upper end of the rotating bolt 204, and a limit plane is opened on one side of the upper end of the rotating bolt 204. The limit plane cooperates with the inside of the adjustment knob 203. Through the cross slot at the upper end of the rotating bolt 204, when the rotating bolt 204 is installed into the inside of the adjustment knob 203, the upper end of the rotating bolt 204 can deform until the upper end of the rotating bolt 204 is completely inserted into the inside of the adjustment knob 203, and then the cross slot elastically returns to the initial state and is stuck inside the adjustment knob 203 to complete the assembly, thereby improving the convenience of installing the rotating bolt 204 into the inside of the adjustment knob 203;

[0040] The limiting notch opened on one side of the upper end of the rotating bolt 204 destroys the cylindrical structure of the upper end of the rotating bolt 204. During the process of the adjustment knob 203 driving the rotation of the rotating bolt 204, the upper end of the rotating bolt 204 is restricted by the internal structure of the adjustment knob 203 and cannot rotate idly inside the adjustment knob 203, ensuring that the rotating bolt 204 rotates together with the adjustment knob 203.

[0041] As Figure 7 and Figure 8 shown, the acquisition probe 205 includes an acquisition housing 2051, a mounting cover plate 2052, a contact 2053, and an elastic reset member 2054. The acquisition housing 2051 is slidably disposed inside the mounting housing 201. The mounting cover plate 2052 is fixedly connected to the upper end of the acquisition housing 2051, and the inside of the mounting cover plate 2052 is threadedly connected to the outer edge of the rotating bolt 204. The contact 2053 is slidably disposed inside the lower end of the mounting housing 201. The contact 2053 is electrically connected to the controller 206. The elastic reset member 2054 is disposed inside the mounting cover plate 2052 and the contact 2053.

[0042] A guiding groove matching the outer edge of the acquisition housing 2051 is opened inside the mounting housing 201. When the rotating bolt 204 needs to rotate, the rotating bolt 204 drives the mounting cover plate 2052 connected by thread to slide in and out inside the acquisition housing 2051. The mounting cover plate 2052 drives the acquisition housing 2051 to slide in and out. The guiding groove opened inside the mounting housing 201 can not only provide guidance for the acquisition housing 2051, but also restrict the rotation of the acquisition housing 2051 and the mounting cover plate 2052 through the structure, thereby preventing the acquisition housing 2051 and the mounting cover plate 2052 from rotating together during the rotation of the rotating bolt 204 and ensuring the extension and contraction of the acquisition housing 2051 and the mounting cover plate 2052.

[0043] During the process of the acquisition housing 2051 extending, the contact 2053 will contact the target scalp. As the acquisition housing 2051 continues to extend, the contact 2053 will slide inside the acquisition housing 2051 and press the elastic reset member 2054. Through the extrusion of the elastic reset member 2054, the contact 2053 always contacts the target scalp, thereby improving the accuracy of the contact 2053 for collecting data of the target scalp.

[0044] As Figure 1 、 Figure 3 and Figure 4As shown, the installation part 1 includes a rear guard plate 101, a rear gasket 102, a connecting member 103, a connecting band 104, and a regulator 105. The rear guard plate 101 is matched with the back of the head of the acquisition target. The rear gasket 102 is arranged inside the rear guard plate 101. There are two connecting members 103, and the two connecting members 103 are respectively slidably arranged inside the two ends of the rear guard plate 101. The other ends of the two connecting members 103 are fixedly connected to the two ends of the frontal part 3. There are two connecting bands 104. One end of one connecting band 104 is fixedly connected to the upper end of the rear guard plate 101, and the other end of the connecting band 104 is fixedly connected to one end of the installation housing 201. The other end of the other connecting band 104 is fixedly connected to the other end of the installation housing 201, and the other end of the connecting band 104 is fixedly connected to the frontal part 3. The regulator 105 is rotatably arranged outside the rear guard plate 101, and the regulator 105 is fixedly connected to the other ends of the two connecting members 103 through a cable;

[0045] When the installation part 1 is worn on the target head, the rear guard plate 101 is adjusted to the back of the target head, and the rear gasket 102 is arranged between the rear guard plate 101 and the back of the head, so as to improve the comfort of the target wearing. The inner side of the upper top part 2 contacts the top of the target head, and the frontal part 3 is adjusted to contact the target forehead. Then, the regulator 105 is rotated to reel in the cable, thereby driving the connecting member 103 to slide inside the rear guard plate 101. By the sliding connecting member 103, the inner perimeter size of the combination of the frontal part 3, the connecting member 103, and the rear guard plate 101 is changed, so as to adapt to the head circumferences of different targets, so that the rear guard plate 101 and the frontal part 3 are always attached to the target head, improving the fitting degree of the target wearing, and further increasing the acquisition sensitivity of the frontal part 3;

[0046] Then, the connecting member 103 is buckled and closed, and the two sides of the whole device are fixed on both sides of the head through the buckled connecting member 103, so as to realize the fixing operation of the installation part 1 on the target head, and thus improve the stability of the installation part 1 on the target head.

[0047] As Figure 1 、 Figure 3 and Figure 4 shown, the frontal part 3 includes a frontal seat 301 and a touch block 302. The two ends of the frontal seat 301 are fixedly connected to the other ends of the corresponding connecting members 103, and the upper end of the frontal seat 301 is fixedly connected to the other end of the corresponding connecting band 104. There are multiple touch blocks 302, and the touch blocks 302 are fixedly connected to the inner side of the frontal seat 301. The touch blocks 302 are electrically connected to the controller 206;

[0048] The front forehead seat 301 corresponds horizontally to the rear guard plate 101. When the connecting belt 104 drives the front forehead seat 301 and the rear guard plate 101 to apply a fastening pressure to the target head, it can improve the degree of fit between the front forehead seat 301 and the contact block 302 and the target front forehead, thereby improving the accuracy of the contact block 302 for collecting data on the target front forehead. The data collected from the front forehead by the contact block 302 is further transmitted as an electrical signal to the controller 206 for analysis.

[0049] The working principle of this utility model is as follows: When the device needs to be worn, the whole of the installation part 1 is worn on the top of the head, so that the inner side of the upper top 2 contacts the target top of the head, and the front forehead part 3 is adjusted to the target forehead. Then, the regulator 105 is rotated to reel in the cable, thereby driving the connecting member 103 to slide inside the rear guard plate 101. By the sliding connecting member 103, the inner peripheral dimension of the combination of the front forehead part 3, the connecting member 103, and the rear guard plate 101 is changed to adapt to the head circumferences of different targets, so that the upper top 2 and the front forehead part 3 are in close contact with the target head. At this time, the whole device is fixed on the target head.

[0050] Then, by rotating the adjustment knob 203, the rotating bolt 204 is driven to rotate together. The rotation of the rotating bolt 204 can drive the collecting probe 205 connected by threads to extend or retract into the interior of the installation housing 201. Through the operations of extending and retracting the collecting probe 205, not only can the collecting probe 205 adapt to different head shapes, but also the collecting probe 205 can be in close contact with the scalp to ensure the accuracy of collecting electrical signal data.

[0051] Then, the collecting probe 205 and the contact block 302 are started through the control button 202. The collecting probe 205 and the contact block 302 send the collected data to the controller 206 for analysis and processing, so as to achieve the purpose of collecting electroencephalogram signal information.

[0052] The above description is only the preferred embodiment of this utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of this utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this utility model. The structures, devices, and operation methods not specifically described and explained in this utility model, unless otherwise specifically stated and limited, are implemented according to the conventional means in the art.

Claims

1. A head-mounted device based on a brain-computer interface, characterized in that: It comprises a mounting part (1), wherein the mounting part (1) provides a fixing and mounting platform for the installation of the entire device; The upper end of the mounting portion (1) is provided with an upper top portion (2), the upper top portion (2) cooperates with the top of the head of the target to collect data, collects relevant data of the top of the target's head through the upper top portion (2), and analyzes the collected data; One end of the mounting portion (1) is provided with a frontal portion (3), the frontal portion (3) cooperates with the forehead of the target to collect data, collects the forehead data of the target through the frontal portion (3), and sends the collected data to the upper top portion (2) for data analysis; The upper portion (2) comprises a mounting shell (201), a control button (202), an adjustment knob (203), a rotating bolt (204), a collection probe (205) and a controller (206); one end of the mounting shell (201) is fixedly connected to the upper end of the mounting portion (1); the control button (202) is fixedly connected to the upper end of the mounting shell (201); the adjustment knob (203) is rotatably arranged inside the mounting shell (201); the upper end of the rotating bolt (204) is clamped with the inside of the adjustment knob (203); and the upper end of the rotating bolt (204) is rotatably connected to the inside of the mounting shell (201); the inside of the collection probe (205) is threadedly connected to the outer edge of the rotating bolt (204); the controller (206) is fixedly connected to the inside of the mounting shell (201); and the controller (206) is electrically connected to the control button (202) and the collection probe (205).

2. A head-mounted device based on a brain-computer interface according to claim 1, characterized in that: A limiting ring is integrally formed at the upper end of the rotating bolt (204), and the limiting ring is arranged on the inner side of the mounting housing (201).

3. A head-mounted device based on a brain-computer interface according to claim 1, characterized in that: A cross groove is provided at the upper end of the rotating bolt (204), and a limiting plane is provided on one side of the upper end of the rotating bolt (204), wherein the limiting plane matches the interior of the adjusting knob (203).

4. A head-mounted device based on a brain-computer interface according to claim 1, characterized in that: The collection probe (205) comprises a collection shell (2051), a mounting cover (2052), a contact (2053) and an elastic reset member (2054); the collection shell (2051) is arranged inside the mounting shell (201); the mounting cover (2052) is fixedly connected to the upper end of the collection shell (2051); the interior of the mounting cover (2052) is threadedly connected to the outer edge of the rotating bolt (204); the contact (2053) is slidably arranged inside the lower end of the mounting shell (201); the contact (2053) is electrically connected to the controller (206); and the elastic reset member (2054) is arranged inside the mounting cover (2052) and the contact (2053).

5. A head-mounted device based on a brain-computer interface according to claim 1, characterized in that: The mounting portion (1) comprises a rear guard plate (101), a rear gasket (102), a connecting piece (103), a connecting belt (104) and an adjuster (105); the rear guard plate (101) matches the back of the head of the acquisition target; the rear gasket (102) is arranged on the inner side of the rear guard plate (101); two connecting pieces (103) are arranged; the two connecting pieces (103) are respectively slidably arranged inside the two ends of the rear guard plate (101); the other ends of the two connecting pieces (103) are fixedly connected to the two ends of the forehead (3); the connecting belt (104) is arranged There are two of them, one end of one of the connecting belts (104) is fixedly connected to the upper end of the rear guard plate (101), the other end of the connecting belt (104) is fixedly connected to one end of the mounting shell (201), one end of the other connecting belt (104) is fixedly connected to the other end of the mounting shell (201), the other end of the connecting belt (104) is fixedly connected to the front forehead (3), the adjuster (105) is rotatably arranged on the outside of the rear guard plate (101), and the adjuster (105) is fixedly connected to the other ends of the two connecting members (103) via cables.

6. A head-mounted device based on a brain-computer interface according to claim 1, characterized in that: The frontal portion (3) comprises a frontal seat (301) and a contact block (302); the two ends of the frontal seat (301) are fixedly connected to the other end of the corresponding connecting member (103); the upper end of the frontal seat (301) is fixedly connected to the other end of the corresponding connecting belt (104); a plurality of contact blocks (302) are provided, and the contact blocks (302) are fixedly connected to the inner side of the frontal seat (301); and the contact blocks (302) are electrically connected to the controller (206).

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