CN111657938A - VR helmet automatically adapting to head contour for brain wave detection - Google Patents
VR helmet automatically adapting to head contour for brain wave detection Download PDFInfo
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- CN111657938A CN111657938A CN202010620649.9A CN202010620649A CN111657938A CN 111657938 A CN111657938 A CN 111657938A CN 202010620649 A CN202010620649 A CN 202010620649A CN 111657938 A CN111657938 A CN 111657938A
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- 238000001514 detection method Methods 0.000 title claims abstract description 98
- 210000004556 brain Anatomy 0.000 title claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 210000001061 forehead Anatomy 0.000 claims description 151
- 210000003128 head Anatomy 0.000 claims description 67
- 239000011521 glass Substances 0.000 claims description 22
- 210000003437 trachea Anatomy 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims 4
- 210000000695 crystalline len Anatomy 0.000 description 15
- 238000010030 laminating Methods 0.000 description 4
- 238000005273 aeration Methods 0.000 description 3
- 230000001936 parietal effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
- A61B5/0006—ECG or EEG signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
Abstract
The invention relates to a VR helmet capable of automatically adapting to the head contour for brain wave detection, and relates to a terminal, which comprises a helmet shell, an air bag control mechanism and a brain wave detection mechanism; the air bag control mechanism is fixed on the inner side of the helmet shell and is used for automatically adapting to the head contour and automatically adjusting the inflation degree; the brain wave detection mechanism is arranged on the surface of the air bag control mechanism and used for detecting the brain waves of the experimenter and transmitting the brain waves to the terminal. According to the VR helmet capable of automatically adapting to the head contour for brain wave detection, the conventional VR helmet is provided with the brain wave detection mechanism, real-time brain wave data can be collected and transmitted to a terminal during user experience, the interior of the VR helmet is provided with the air bag control mechanism, head contours of different users can be automatically adapted, the VR helmet is prevented from shaking, and comfortable experience is obtained.
Description
Technical Field
The invention relates to the field of mechanical devices, in particular to a VR helmet capable of automatically adapting to a head contour for brain wave detection.
Background
With the development of Virtual Reality (VR) technology, the carrier Virtual Reality (VR) helmet form thereof is being diversified. When a user uses a Virtual Reality (VR) helmet, the brain cognitive activity detection condition is a key point concerned by the scientific community, the multimedia industry, the game industry and the biomedical community, and a common Virtual Reality (VR) helmet is large in size and cannot be compatible with a traditional brain wave detection helmet. The technical problem that the experience of a user cannot be met is solved by aiming at the problems that a traditional Virtual Reality (VR) helmet and a traditional brain wave detection helmet cannot work in parallel, the compatibility is poor, and the number of interaction modes between the traditional VR helmet and a wearer is small.
In the prior art, the electroencephalogram detection and the automatic adaptation to the head contour cannot be simultaneously considered, for example, a head-wearing ECM electroencephalogram detector with application number of 201720032854.7 and an authorized announcement date of 2018, 01, 12 and is a electroencephalogram detector worn on the head, which can only be used for detecting electroencephalograms and is not applicable to all people, the head contour of each person is different, and the detected electroencephalogram data has a large error under the condition that the head contour is not adapted to the head contour.
Disclosure of Invention
The invention provides a VR helmet which is used for detecting brain waves and automatically adapts to a head contour, and aims to overcome the technical defects that the existing VR helmet does not support brain wave detection and cannot adapt to the head contour.
In order to realize the purpose, the technical scheme is as follows:
a VR helmet for automatically adapting to head contour for brain wave detection relates to a terminal and comprises a helmet shell, an air bag control mechanism and a brain wave detection mechanism; the air bag control mechanism is fixed on the inner side of the helmet shell and is used for automatically adapting to the head contour and automatically adjusting the inflation degree; the brain wave detection mechanism is arranged on the surface of the air bag control mechanism and used for detecting the brain waves of the experimenter and transmitting the brain waves to the terminal.
In the above scheme, set up brain wave detection mechanism on the conventional VR helmet, can gather brain wave real-time data and transmit to the terminal when user experience, be provided with gasbag control mechanism in VR helmet inside, can adapt to different users' head profile automatically, prevent that the VR helmet from rocking, obtain comfortable experience.
The helmet shell comprises a crown guard plate, a crown support, a VR glasses mechanism, an ear clip, a guard plate support, a forehead guard plate and a nape guard plate; the forehead guard plate and the back neck guard plate are connected through a head top support above the forehead guard plate and the back neck guard plate, the head top guard plate is fixedly arranged above the head top support, and two sides of the forehead guard plate and the two sides of the back neck guard plate are connected through the guard plate supports and form an annular structure; the ear clip is fixedly arranged on the guard plate bracket on one side; the VR glasses mechanism is fixedly arranged at the front end of the forehead protection plate.
VR glasses mechanism includes VR glasses shell and lens, VR glasses shell is fixed to be set up at forehead backplate front end, lens are fixed to be set up inside VR glasses shell.
The air bag control mechanism comprises a forehead air bag mechanism, a crown air bag mechanism, a nape air bag mechanism and an air bag electric appliance device; the forehead air bag mechanism is arranged on the inner side of the forehead protection plate, the head top air bag mechanism is arranged on the inner side of the head top protection plate, the nape air bag mechanism is arranged on the inner side of the nape protection plate, and the air bag electric appliance device is fixedly arranged on one side symmetrical to the ear clip.
The forehead air bag mechanism comprises a forehead electromagnetic valve, a forehead air pump, a forehead air pipe, a forehead air bag and a forehead pressure sensor; the forehead pressure sensor is electrically connected with the air bag electric device, and the air bag electric device controls the forehead air pump to operate through the forehead electromagnetic valve; the forehead air pump pressurizes or depressurizes the forehead air bag through the forehead trachea;
the head top air bag mechanism comprises a head top air pipe, a head top air bag and a head top pressure sensor; the nape air bag mechanism comprises a nape electromagnetic valve, a nape air pump, a nape air pipe, a nape air bag and a nape pressure sensor; the head top pressure sensor and the back neck pressure sensor are both electrically connected with the air bag electric appliance device, and the air bag electric appliance device controls the forehead air pump to operate through the forehead electromagnetic valve; the forehead air pump pressurizes or depressurizes the forehead air bag through the forehead trachea; the air bag electric appliance device controls the operation of the back neck air pump through the back neck electromagnetic valve; the nape air pump pressurizes or depressurizes the overhead air bag through the overhead air pipe; the nape air pump pressurizes or depressurizes the nape air bag through the nape trachea.
The air bag electric appliance device comprises an air pump control chip, a first power supply and a driving circuit; the forehead pressure sensor, the crown pressure sensor and the nape pressure sensor are all electrically connected with the air pump control chip; the air pump control chip controls the switches of the forehead electromagnetic valve and the nape electromagnetic valve through the driving circuit, and the first power supply provides electric energy for the forehead electromagnetic valve, the nape electromagnetic valve, the forehead air pump and the nape air pump.
The brain wave detection mechanism comprises a forehead BCI detection electrode, a crown BCI detection electrode, a back neck BCI detection electrode and a BCI control device; the forehead BCI detection electrode is arranged on the surface of the forehead air bag, the top of the head BCI detection electrode is arranged on the surface of the top of the head air bag, the back neck BCI detection electrode is arranged on the surface of the back neck air bag, the forehead BCI detection electrode, the top of the head BCI detection electrode and the back neck BCI detection electrode are electrically connected with the BCI control device, and the BCI control device is wirelessly connected with the terminal.
The quantity of forehead BCI detecting electrode and nape BCI detecting electrode all is provided with 2, 2 forehead BCI detecting electrode symmetry set up in forehead gasbag surface, 2 nape BCI detecting electrode symmetry set up in nape gasbag surface.
The BCI control device comprises a second power supply, a ThinkGear AM control chip and a Bluetooth communication device; the output ends of the forehead BCI detection electrode, the crown BCI detection electrode and the back neck BCI detection electrode are electrically connected with the input end of the thinkGear AM control chip, the thinkGear AM control chip is wirelessly connected with the terminal through the Bluetooth communication device, and the second power supply provides electric energy for the forehead BCI detection electrode, the crown BCI detection electrode, the back neck BCI detection electrode and the ThinkGear AM control chip.
And a brain wave reference point sensor is arranged in the ear clip and transmits a brain wave reference voltage point to the ThinkGearAM control chip.
In the scheme, the VR glasses mechanism is matched with a mobile phone with a screen size less than 7 inches on the market, the smart mobile phone is fixed in the interior after being placed, a user can observe the integrated virtual reality image through the lens, the distance between the lens and the mobile phone is controlled within the focal length of the lens, light rays are refracted for 2 times through the lens and crystalline lens, and the retina of the user clearly forms a whole image; when the VR helmet is put into smart mobile phone equipment initialization VR and is experienced, the air pump is to each gasbag quick inflation come the laminating person's head shape of wearing, and control chip surveys laminating pressure through pressure sensor, and forehead solenoid valve and nape solenoid valve adjust the pressurize in real time, maintain forehead gasbag, crown of the head gasbag and nape gasbag and produce the dynamics of tightening, comfortable wearing to the head.
The brain wave detection mechanism collects brain wave signals through a forehead BCI detection electrode, a crown BCI detection electrode and a back neck BCI detection electrode, the collected signals feed measured data back to the terminal through the Bluetooth communication device, and waveforms and data are displayed. The BCI signal acquisition component mainboard adopts an American Neurosky ThinkGear AM control chip and a matched ThinkGear detection electrode thereof to acquire bioelectricity signals generated by a brain, carries out operation through an internal algorithm of the Neurosky ThinkGear AM control chip, finally uploads the measured data to a terminal of a computer, and then stores, analyzes and displays the data through the terminal of the computer.
The VR helmet has three airbags, namely a forehead airbag, a crown airbag and a nape airbag, the airbag after rapid inflation can be attached to the head shape of a wearer, and the head generates tightening and comfortable wearing force. The air bag is made of flexible tightening materials, so that the head shape of a wearer can be conveniently fitted, the head top part of the tested person can be fixedly tightened, and the brain wave instrument is prevented from shaking, dislocating, loosening and the like. Compared with the traditional bandage or plastic support, the air bag has the advantages of being more fit with the brain shape, high in comfort, high in sealing degree, capable of being accurately controlled and the like, and plays an important role in improving BCI electroencephalogram collection and reducing measurement errors.
The air bag control mechanism comprises a forehead pressure sensor, a nape pressure sensor and a crown pressure sensor, the forehead air bag is pressurized by the forehead air pump through a forehead air pipe, and the crown air bag and the nape air bag are pressurized by the nape air pump and the crown air pipe which are connected in series respectively. Connect through the trachea between all gasbags and the air pump in order to guarantee that the inflation body that the air pump aerifys can be tight circulate in the system and be unlikely to reveal, all solenoid valves pass through the circuit and link to each other with drive circuit, air pump control chip controls the inflation and deflation of air pump and solenoid valve through drive circuit, forehead pressure sensor, nape pressure sensor and top of the head pressure sensor, air pump control chip calculates the data received and obtains the gasbag to each position pressure value of head, according to the human engineering student physical index, when the brain wave collection that each position pressure value reaches is fit for numerical value, air pump control chip controls the solenoid valve and then adjusts the gaseous aeration flow of air pump according to the circulation gas pressure real time in the system, guarantee that each gasbag gives the head suitable, comfortable pressure.
The air bag control mechanism is provided with two sets of independent air pumps and air bag systems for independent inflation and pressure maintaining, the forehead air pump is used for independently pressurizing the forehead air bag through a forehead air pipe, and the nape air pump is used for pressurizing the crown air bag and the nape air bag through a nape air pipe and a crown air pipe respectively; compared with the traditional airbags which are integrally connected in series, the airbag is more flexible and accurate.
The power supply voltage of the VR helmet is 6V, CJV 13-A06A 1 is selected as a back neck solenoid valve and a forehead solenoid valve, the rated voltage is DC-6V, and the VR helmet is normally open and bears 350mmHg at maximum; the measuring ranges of the forehead pressure sensor, the crown pressure sensor and the nape pressure sensor are 0-40KPa, and the linear precision is 0.25% FS; the pressure sensor is used for identifying the skin pressure and the pulse signal of the head of the user, and the pulse is converted into an electric signal to be transmitted to the air pump control chip. The Bluetooth communication device adopts a TI CC2540 chip to support AT instructions, and data are transmitted with a ThinkGear AM chip through a direct serial port.
Compared with the prior art, the invention has the beneficial effects that:
according to the VR helmet capable of automatically adapting to the head contour for brain wave detection, the conventional VR helmet is provided with the brain wave detection mechanism, real-time brain wave data can be collected and transmitted to a terminal during user experience, the interior of the VR helmet is provided with the air bag control mechanism, head contours of different users can be automatically adapted, the VR helmet is prevented from shaking, and comfortable experience is obtained.
Drawings
FIG. 1 is a schematic view of a helmet shell of the present invention;
FIG. 2 is a schematic view of an air bag control mechanism of the present invention;
FIG. 3 is a schematic view of a brain wave detection mechanism of the present invention;
description of reference numerals: 1. a helmet shell; 2. an air bag control mechanism; 3. a brain wave detection mechanism; 11. a head top guard plate; 12. a head support; 13. a VR glasses mechanism; 14. ear clips; 15. a guard plate support; 16. a forehead shield; 17. a back neck guard plate; 131. a VR glasses housing; 132. a lens; 21. a forehead airbag mechanism; 22. An overhead air bag mechanism; 23. a nape airbag mechanism; 24. an air bag electrical device; 211. a forehead solenoid valve; 212. a forehead air pump; 213. the forehead trachea; 214. a forehead bladder; 215. a forehead pressure sensor; 221. a head top trachea; 222. a head-top airbag; 223. a head top pressure sensor; 231. a back neck solenoid valve; 232. a nape air pump; 233. the posterior cervical trachea; 234. a nape air bag; 235. a nape pressure sensor; 31. a forehead BCI detection electrode; 32. a parietal BCI detection electrode; 33. a back neck BCI detection electrode; 34. BCI control device.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
the invention is further illustrated below with reference to the figures and examples.
Example 1
As shown in fig. 1, 2 and 3, a VR helmet for automatically adapting to head contour for brain wave detection relates to a terminal, and comprises a helmet shell 1, an air bag control mechanism 2 and a brain wave detection mechanism 3; the air bag control mechanism 2 is fixed on the inner side of the helmet shell 1 and is used for automatically adapting to the head contour and automatically adjusting the inflation degree; the brain wave detection mechanism 3 is arranged on the surface of the air bag control mechanism 2 and used for detecting the brain waves of the experimenter and transmitting the brain waves to the terminal.
The helmet shell 1 comprises a crown guard 11, a crown support 12, a VR glasses mechanism 13, an ear clip 14, a guard support 15, a forehead guard 16 and a nape guard 17; the forehead guard plate 16 and the nape guard plate 17 are connected through the overhead head support 12, the overhead guard plate 11 is fixedly arranged above the overhead head support 12, and both sides of the forehead guard plate 16 and the nape guard plate 17 are connected through the guard plate support 15 and form an annular structure; the ear clip 14 is fixedly arranged on the guard plate bracket 15 on one side; the VR glasses mechanism 13 is fixedly arranged at the front end of the forehead protection plate 16.
The VR glasses mechanism 13 includes a VR glasses housing 131 and a lens 132, the VR glasses housing 131 is fixedly disposed at the front end of the forehead guard 16, and the lens 132 is fixedly disposed inside the VR glasses housing 131.
The air bag control mechanism 2 comprises a forehead air bag mechanism 21, a crown air bag mechanism 22, a nape air bag mechanism 23 and an air bag electric appliance device 24; the forehead air bag mechanism 21 is arranged on the inner side of the forehead protection plate 16, the crown air bag mechanism 22 is arranged on the inner side of the crown protection plate 11, the nape air bag mechanism 23 is arranged on the inner side of the nape protection plate 17, and the air bag electric appliance device 24 is fixedly arranged on one side symmetrical to the ear clip 14.
The forehead air bag mechanism 21 comprises a forehead electromagnetic valve 211, a forehead air pump 212, a forehead air pipe 213, a forehead air bag 214 and a forehead pressure sensor 215; the forehead pressure sensor 215 is electrically connected to the air bag electrical apparatus 24, and the air bag electrical apparatus 24 controls the forehead air pump 212 to operate through the forehead electromagnetic valve 211; the forehead air pump 212 pressurizes or depressurizes the forehead bladder 214 through the forehead trachea 213;
the overhead air bag mechanism 22 comprises an overhead air pipe 221, an overhead air bag 222 and an overhead pressure sensor 223; the nape airbag mechanism 23 comprises a nape electromagnetic valve 231, a nape air pump 232, a nape air pipe 233, a nape airbag 234 and a nape pressure sensor 235; the crown pressure sensor 223 and the nape pressure sensor 235 are electrically connected to the airbag electrical apparatus 24, and the airbag electrical apparatus 24 controls the forehead air pump 212 to operate through the forehead solenoid valve 211; the forehead air pump 212 pressurizes or depressurizes the forehead bladder 214 through the forehead trachea 213; the airbag electrical device 24 controls the operation of the back neck air pump 232 through the back neck electromagnetic valve 231; the nape air pump 232 pressurizes or depressurizes the parietal balloon 222 through the parietal air tube 221; the nape air pump 232 pressurizes or depressurizes the nape air bag 234 through the nape air tube 233.
The air bag electric appliance device 24 comprises an air pump control chip, a first power supply and a driving circuit; the forehead pressure sensor 215, the crown pressure sensor 223 and the nape pressure sensor 235 are electrically connected to the air pump control chip, the air pump control chip controls the switches of the forehead electromagnetic valve 211 and the nape electromagnetic valve 231 through the driving circuit, and the first power supply provides electric energy for the forehead electromagnetic valve 211, the nape electromagnetic valve 231, the forehead air pump 212 and the nape air pump 232.
The brain wave detection mechanism 3 comprises a forehead BCI detection electrode 31, a crown BCI detection electrode 32, a back neck BCI detection electrode 33 and a BCI control device 34; the forehead BCI detection electrode 31 is arranged on the surface of the forehead air bag 214, the top of the head BCI detection electrode 32 is arranged on the surface of the top of the head air bag 222, the back neck BCI detection electrode 33 is arranged on the surface of the back neck air bag 234, the forehead BCI detection electrode 31, the top of the head BCI detection electrode 32 and the back neck BCI detection electrode 33 are all electrically connected with the BCI control device 34, and the BCI control device 34 is in wireless connection with the terminal.
The number of the forehead BCI detection electrodes 31 and the back neck BCI detection electrodes 33 is respectively provided with 2, 2 forehead BCI detection electrodes 31 are symmetrically arranged on the surface of the forehead air bag 214, and 2 back neck BCI detection electrodes 33 are symmetrically arranged on the surface of the back neck air bag 234.
The BCI control device 34 comprises a second power supply, a ThinkGear AM control chip and a Bluetooth communication device; the output ends of the forehead BCI detection electrode 31, the crown BCI detection electrode 32 and the back neck BCI detection electrode 33 are electrically connected with the input end of the thinkGear AM control chip, the thinkGear AM control chip is wirelessly connected with the terminal through the Bluetooth communication device, and the second power supply provides electric energy for the forehead BCI detection electrode 31, the crown BCI detection electrode 32, the back neck BCI detection electrode 33 and the thinkGear AM control chip.
A brain wave reference point sensor is arranged in the ear clip 14 and transmits a brain wave reference voltage point to the thinkGear AM control chip.
Example 2
The VR glasses mechanism 13 is adapted to a mobile phone with a screen size of less than 7 inches on the market, the smart phone is fixed in the smart phone after being placed in the smart phone, a user can observe the integrated virtual reality image through the lens 132, the distance between the lens 132 and the mobile phone is controlled within the focal length of the lens 132, light rays are refracted for 2 times through the lens 132 and crystalline lenses, and the retina of the user clearly forms a whole image; when the VR helmet is put into smart mobile phone equipment initialization VR and is experienced, the air pump is to each gasbag rapid aeration come the laminating person's head shape of wearing, and air pump control chip surveys laminating pressure through pressure sensor, and forehead solenoid valve and nape solenoid valve adjust the pressurize in real time, maintain forehead gasbag 214, crown of the head gasbag 222 and nape gasbag 234 to produce the strength of tightening, comfortable wearing to the head.
The brain wave detection mechanism 3 collects brain wave signals through a forehead BCI detection electrode 31, a crown BCI detection electrode 32 and a back neck BCI detection electrode 33, and the collected signals feed measured data back to the terminal through a Bluetooth communication device to display waveforms and data. The BCI signal acquisition component mainboard adopts an American Neurosky ThinkGear AM control chip and a matched ThinkGear detection electrode thereof to acquire bioelectricity signals generated by a brain, carries out operation through an internal algorithm of the Neurosky ThinkGear AM control chip, finally uploads the measured data to a terminal of a computer, and then stores, analyzes and displays the data through the terminal of the computer.
The VR helmet has three airbags, namely a forehead airbag 214, a crown airbag 222 and a nape airbag 234, the airbags after quick inflation can be fitted to the shape of the head of a wearer, and the head generates tight and comfortable wearing force. The air bag is made of flexible tightening materials, so that the head shape of a wearer can be conveniently fitted, the head top part of the tested person can be fixedly tightened, and the brain wave instrument is prevented from shaking, dislocating, loosening and the like. Compared with the traditional bandage or plastic support, the air bag has the advantages of being more fit with the brain shape, high in comfort, high in sealing degree, capable of being accurately controlled and the like, and plays an important role in improving BCI electroencephalogram collection and reducing measurement errors.
The air bag control mechanism 2 includes a forehead pressure sensor 215, a nape pressure sensor 235 and a crown pressure sensor 223, the forehead air bag 214 is pressurized by the forehead air pump 212 via the forehead air tube 213, and the crown air bag 222 and the nape air bag 234 are pressurized by the nape air pump 232 via the nape air tube 233 and the crown air tube 221, which are connected in series, respectively. Connect through the trachea between all gasbags and the air pump in order to guarantee that the inflation body that the air pump aerifys can be tight circulate in the system and be unlikely to reveal, all solenoid valves pass through the circuit and link to each other with drive circuit, air pump control chip controls the inflation and deflation of air pump and solenoid valve through drive circuit, forehead pressure sensor, nape pressure sensor and top of the head pressure sensor, air pump control chip calculates the data received and obtains the gasbag to each position pressure value of head, according to the human engineering student physical index, when the brain wave collection that each position pressure value reaches is fit for numerical value, air pump control chip controls the solenoid valve and then adjusts the gaseous aeration flow of air pump according to the circulation gas pressure real time in the system, guarantee that each gasbag gives the head suitable, comfortable pressure.
The air bag control mechanism 2 is provided with two sets of independent air pumps and air bag systems for independent inflation and pressure maintaining, a forehead air pump independently pressurizes a forehead air bag through a forehead air pipe, and a nape air pump respectively pressurizes a crown air bag and a nape air bag through a nape air pipe and a crown air pipe; compared with the traditional airbags which are integrally connected in series, the airbag is more flexible and accurate.
The power supply voltage of the VR helmet is 6V, CJV 13-A06A 1 is selected as the nape electromagnetic valve 231 and the forehead electromagnetic valve 211, the rated voltage is DC-6V, and the VR helmet is normally open and bears 350mmHg at maximum; the range of the forehead pressure sensor 215, the crown pressure sensor 223 and the nape pressure sensor 235 is 0-40KPa, and the linear accuracy is 0.25% FS; the pressure sensor is used for identifying the skin pressure and the pulse signal of the head of the user, and the pulse is converted into an electric signal to be transmitted to the air pump control chip. The Bluetooth communication device adopts a TI CC2540 chip to support AT instructions, and data are transmitted with a ThinkGear AM chip through a direct serial port.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A VR helmet capable of automatically adapting to head contours for brain wave detection relates to a terminal and is characterized by comprising a helmet shell (1), an air bag control mechanism (2) and a brain wave detection mechanism (3); the air bag control mechanism (2) is fixed on the inner side of the helmet shell (1) and is used for automatically adapting to the head contour and automatically adjusting the inflation degree; the brain wave detection mechanism (3) is arranged on the surface of the air bag control mechanism (2) and used for detecting the brain waves of the experimenter and transmitting the brain waves to the terminal.
2. The VR helmet for brain wave detection with automatic adaptation of the head profile according to claim 1, characterized in that the helmet shell (1) includes a crown shield (11), a crown support (12), a VR glasses mechanism (13), an ear clip (14), a shield support (15), a forehead shield (16), and a nape shield (17); the forehead protection plate (16) and the back neck protection plate (17) are connected through a top head support (12) above, the top head protection plate (11) is fixedly arranged above the top head support (12), and two sides of the forehead protection plate (16) and the back neck protection plate (17) are connected through the protection plate support (15) and form an annular structure; the ear clip (14) is fixedly arranged on the guard plate bracket (15) on one side; the VR glasses mechanism (13) is fixedly arranged at the front end of the forehead protection plate (16).
3. The VR helmet of claim 2, wherein the VR glasses mechanism (13) includes a VR glasses housing (131) and a lens (132), the VR glasses housing (131) is fixedly disposed at a front end of the forehead shield (16), and the lens (132) is fixedly disposed inside the VR glasses housing (131).
4. The VR helmet for brain wave detection with automatic adaptation of head profile according to claim 3, wherein the airbag control mechanism (2) includes a forehead airbag mechanism (21), a crown airbag mechanism (22), a nape airbag mechanism (23), and an airbag electrical device (24); the forehead air bag mechanism (21) is arranged on the inner side of the forehead protection plate (16), the crown air bag mechanism (22) is arranged on the inner side of the crown protection plate (11), the nape air bag mechanism (23) is arranged on the inner side of the nape protection plate (17), and the air bag electric appliance device (24) is fixedly arranged on one side symmetrical to the ear clip (14).
5. The VR helmet for brain wave detection with automatic adaptation of head profile according to claim 4, wherein the forehead airbag mechanism (21) includes a forehead solenoid valve (211), a forehead air pump (212), a forehead trachea (213), a forehead airbag (214), and a forehead pressure sensor (215); the forehead pressure sensor (215) is electrically connected with the air bag electric device (24), and the air bag electric device (24) controls the forehead air pump (212) to operate through the forehead electromagnetic valve (211); the forehead air pump (212) pressurizes or depressurizes the forehead air bag (214) through the forehead trachea (213);
the overhead air bag mechanism (22) comprises an overhead air pipe (221), an overhead air bag (222) and an overhead pressure sensor (223); the nape air bag mechanism (23) comprises a nape electromagnetic valve (231), a nape air pump (232), a nape air pipe (233), a nape air bag (234) and a nape pressure sensor (235); the vertex pressure sensor (223) and the nape pressure sensor (235) are electrically connected with the air bag electric appliance device (24), and the air bag electric appliance device (24) controls the forehead air pump (212) to operate through the forehead electromagnetic valve (211); the forehead air pump (212) pressurizes or depressurizes the forehead air bag (214) through the forehead trachea (213); the air bag electric appliance device (24) controls the operation of the back neck air pump (232) through the back neck electromagnetic valve (231); the nape air pump (232) pressurizes or depressurizes the overhead air bag (222) through the overhead air tube (221); the nape air pump (232) pressurizes or depressurizes the nape air bag (234) through the nape air tube (233).
6. The VR helmet of claim 5, wherein the airbag electronics (24) includes a pump control chip, a first power source, a drive circuit; the forehead pressure sensor (215), the crown pressure sensor (223) and the nape pressure sensor (235) are electrically connected with the air pump control chip, the air pump control chip controls the switches of the forehead electromagnetic valve (211) and the nape electromagnetic valve (231) through the driving circuit, and the first power supply provides electric energy for the forehead electromagnetic valve (211), the nape electromagnetic valve (231), the forehead air pump (212) and the nape air pump (232).
7. The VR helmet for brain wave detection with automatic adaptation of the head profile according to claim 6, wherein the brain wave detection mechanism (3) includes a forehead BCI detection electrode (31), a crown BCI detection electrode (32), a nape BCI detection electrode (33) and a BCI control device (34); the forehead BCI detection electrode (31) is arranged on the surface of the forehead air bag (214), the crown BCI detection electrode (32) is arranged on the surface of the crown air bag (222), the nape BCI detection electrode (33) is arranged on the surface of the nape air bag (234), the forehead BCI detection electrode (31), the crown BCI detection electrode (32) and the nape BCI detection electrode (33) are electrically connected with the BCI control device (34), and the BCI control device (34) is wirelessly connected with the terminal.
8. The VR helmet of claim 7, wherein the number of forehead BCI probe electrodes (31) and nape BCI probe electrodes (33) is 2, 2 forehead BCI probe electrodes (31) are symmetrically arranged on the surface of the forehead airbag (214), and 2 nape BCI probe electrodes (33) are symmetrically arranged on the surface of the nape airbag (234).
9. The VR headset for brainwave detection according to claim 8, wherein said BCI control means (34) comprises a second power supply, a ThinkGear AM control chip, a bluetooth communication means; the output ends of the forehead BCI detection electrode (31), the crown BCI detection electrode (32) and the back neck BCI detection electrode (33) are electrically connected with the input end of the thinkGear AM control chip, the ThinkGear AM control chip is wirelessly connected with the terminal through the Bluetooth communication device, and the second power supply provides electric energy for the forehead BCI detection electrode (31), the crown BCI detection electrode (32), the back neck BCI detection electrode (33) and the ThinkGear AM control chip.
10. The VR headset for brainwave detection according to claim 9, wherein a brainwave reference point sensor is disposed within the ear clip (14) and transmits a brainwave reference voltage point to the ThinkGearAM control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620649.9A CN111657938A (en) | 2020-07-01 | 2020-07-01 | VR helmet automatically adapting to head contour for brain wave detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620649.9A CN111657938A (en) | 2020-07-01 | 2020-07-01 | VR helmet automatically adapting to head contour for brain wave detection |
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| CN111657938A true CN111657938A (en) | 2020-09-15 |
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| CN202010620649.9A Pending CN111657938A (en) | 2020-07-01 | 2020-07-01 | VR helmet automatically adapting to head contour for brain wave detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068315A (en) * | 2020-11-11 | 2020-12-11 | 宁波圻亿科技有限公司 | Adjusting method and system of AR helmet |
| CN112189937A (en) * | 2020-09-30 | 2021-01-08 | 宋旭 | Airbag safety sensing helmet and method |
| CN112731663A (en) * | 2020-12-22 | 2021-04-30 | 常州绘了么信息科技有限公司 | A VR helmet that is used for head profile of brain wave to detect |
-
2020
- 2020-07-01 CN CN202010620649.9A patent/CN111657938A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112189937A (en) * | 2020-09-30 | 2021-01-08 | 宋旭 | Airbag safety sensing helmet and method |
| CN112068315A (en) * | 2020-11-11 | 2020-12-11 | 宁波圻亿科技有限公司 | Adjusting method and system of AR helmet |
| CN112068315B (en) * | 2020-11-11 | 2021-03-16 | 宁波圻亿科技有限公司 | Adjusting method and system of AR helmet |
| CN112731663A (en) * | 2020-12-22 | 2021-04-30 | 常州绘了么信息科技有限公司 | A VR helmet that is used for head profile of brain wave to detect |
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