CN112932788A

CN112932788A - Wearable device

Info

Publication number: CN112932788A
Application number: CN202110362205.4A
Authority: CN
Inventors: 郑亚莉
Original assignee: Shenzhen Technology University
Current assignee: Shenzhen Technology University
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-06-11

Abstract

An embodiment of the present invention provides a wearable device, the device includes an eye mask body and a first physiological sensor, the first physiological sensor includes at least five EEG electrodes disposed on the eye mask body for collecting EEG signals, at least one The EEG electrodes are arranged on the eye mask body at a position corresponding to the middle of the user's forehead, at least two EEG electrodes are arranged on the eye mask body at positions corresponding to the temples on both sides of the user, and at least two EEG electrodes are arranged on the eye mask body. Corresponds to the location of the mastoid process behind the ears on both sides of the user. The layout design of the first physiological sensor can ensure the accuracy of sleep quality evaluation results.

Description

Wearable device

Technical Field

The invention relates to the field of sleep monitoring, in particular to wearable equipment, such as an intelligent eyeshade.

Background

Currently, adequate sleep, balanced diet and proper exercise are three internationally recognized health criteria. The sleep can restore spirit and eliminate fatigue, and is an important link for restoring, integrating and consolidating the memory of the organism. Researches show that short-term insomnia can cause mental fatigue and reduce the working efficiency; long-term insomnia can lead to the problems of inattention, memory loss, low mood, etc.

The golden standard of medical sleep monitoring is that a polysomnograph is adopted to monitor multiple physiological parameters of a tested person, including electroencephalogram, electrocardiogram, electromyogram, ophthalmogram, chest type and abdominal type respiratory tension chart and the like, wherein a plurality of wet electrodes are required to be pasted on the head of the tested person for implementing the monitoring of the electroencephalogram, conductive paste is coated on the places where the electrodes are in contact with the skin, and the electrodes conduct signals to sleep monitoring equipment through leads. The method has complex connection and complex operation, and the tested person can be tied up due to various leads, thereby reducing the accuracy of sleep detection.

The existing silver/silver chloride wet electrode widely used in clinic has the defects that skin allergy is easy to cause after long-time use, detection signals are reduced after the conductive adhesive is dried, and the like. The fabric electrode prepared by weaving, knitting and the like of the conductive material can solve the negative influence brought by the wet electrode to a greater extent. The fabric electrode has the same touch feeling as clothes, is suitable for long-term wearing monitoring, and has the advantages that the lead can be arranged in the fabric electrode and can be fused with a detection device into a whole. However, at present, no wearable device capable of accurately acquiring data and accurately evaluating sleep quality exists.

For example, chinese patent application 201910221871.9 provides a portable sleep monitor device, which can analyze sleep condition by collecting electroencephalogram, electrooculogram, and electromyogram signals, but two electrodes of the collected signals are located at the outer canthus and the lower jaw, so that wearing difficulty is increased, comfort is reduced, and information collection is not accurate. The Chinese patent application 201821009634.3 provides an intelligent eyeshade for collecting brain electrical signals, which collects two-channel brain electrical signals, but reference electrodes are positioned at two sides of the bridge of the nose of a human body, the difference of the heights of the bridge of the nose of different people is not considered, and when the electrodes collect signals, the electrodes are easy to slide to generate noise, so that the collection of the physiological information of a user is inaccurate. For another example, chinese utility model patent 201420013338.6 mentions a sleep detection device, has only used the eye signal to carry out the analysis to sleep, and the data dimension is few, and is difficult to carry out accurate aassessment to the sleep quality. The chinese patent application 201710493879.1 proposes an intelligent sleep monitoring eye mask with comprehensive functions, which analyzes the sleep condition by collecting an eye electrical signal and detecting the sleep activity status with a built-in gyroscope, but it does not mention how to process the collected physiological electrical signal and does not collect and analyze an electroencephalogram signal, which may result in failure to accurately evaluate the sleep quality.

Therefore, there is a need to provide a new wearable device to improve the accuracy of sleep quality assessment of a user.

Disclosure of Invention

To solve at least one of the above problems, the present invention provides a wearable device.

According to an aspect of the present invention, there is provided a wearable device including an eyecup body and a first physiological sensor provided on the eyecup body, wherein,

the eyeshade body at least covers eyes, forehead and behind ears of a user in a use state;

the first physiological sensor comprises at least five electroencephalogram electrodes which are arranged on the eyeshade body and used for collecting electroencephalogram signals of a user, wherein at least one electroencephalogram electrode is arranged at the position, corresponding to the middle of the forehead of the user, of the eyeshade body, at least two electroencephalogram electrodes are arranged at the position, corresponding to the temples on the two sides of the user, of the eyeshade body, and at least two electroencephalogram electrodes are arranged at the position, corresponding to the mastoid process behind the ears of the user, of the eyeshade body.

Illustratively, the wearable device further comprises a second physiological sensor, wherein,

the second physiological sensor comprises at least two electro-ocular electrodes which are arranged on the eyeshade body and used for collecting electro-ocular signals of a user, wherein at least one electro-ocular electrode is arranged at the position of the eyeshade body corresponding to the upper part outside the left canthus of the user, and at least one electro-ocular electrode is arranged at the position of the eyeshade body corresponding to the upper part outside the right canthus of the user.

Illustratively, the wearable device further comprises at least one of a third physiological sensor, a fourth physiological sensor, a fifth physiological sensor, and a sixth sensor, wherein,

the third physiological sensor comprises at least one sensor which is arranged on the eyeshade body and is used for collecting pulse wave signals of a user, the sensor is arranged at a position, corresponding to the middle of the forehead of the user, of the eyeshade body and is positioned below the electroencephalogram electrode arranged at a position, corresponding to the middle of the forehead of the user, of the eyeshade body;

the fourth physiological sensor is arranged on the eyeshade body and used for collecting head action signals of a user;

the fifth physiological sensor is arranged in a region, close to the nose bridge, of the user, on the eyeshade body and used for collecting sound signals of the user and the surroundings;

the sixth sensor is arranged on one side of the eyeshade body far away from the user and used for detecting the intensity of ambient light.

Illustratively, the first physiological sensor and the second physiological sensor are made of conductive fabric or conductive film or conductive glue or a mixture thereof;

or the bases of the first physiological sensor and the second physiological sensor are saline sponge electrodes made of fabrics.

The wearable device may further comprise at least one sliding rail disposed on the eyeshade body, wherein the at least one brain electrode of the first physiological sensor and/or the at least one eye electrode of the second physiological sensor is slidably disposed on the sliding rail.

Exemplarily, the wearable device further comprises a sliding block arranged on the sliding rail, the sliding rail comprises a plurality of approximately gourd-shaped circular rail units which are connected in an end-to-end manner, the sliding block is adapted to the approximately gourd-shaped circular rail units and is slidably arranged on the sliding rail, and at least one brain electrode of the first physiological sensor and/or at least one eye electrode of the second physiological sensor is/are connected with the sliding block through a buckle.

Illustratively, the eyecup body includes an inner layer facing the user, an outer layer facing away from the user, and an interlayer between the inner layer and the outer layer,

the inner layer is made of soft, comfortable and strong-moisture-absorption material;

the outer layer is made of a material with smooth, soft and thick hand feeling;

the interlayer comprises at least two layers, wherein at least one layer of the interlayer is made of a material with hardness at least higher than that of the inner layer and/or the outer layer, and different interlayers are connected through magnetic buttons;

the left and right sides of the eyeshade body are provided with magic tapes with stickness for connecting the eyeshade, and the left and right sides of the eyeshade body comprise elastic stretchable materials.

Exemplarily, the interlayer is filled with a filler, and the hardness of the filler is less than that of the interlayer;

and/or the first physiological sensor and the second physiological sensor are disposed on the inner layer.

Illustratively, the wearable device further comprises a preprocessing module disposed on the eyeshade body, wherein the preprocessing module is configured to preprocess the signals collected by the first, second, third, fourth, fifth, and sixth biosensors, and the preprocessing comprises at least one of: amplifying, filtering, removing noise and removing motion artifacts.

The wearable device further comprises a microprocessor module disposed on the eyeshade body, wherein the microprocessor module is used for digitizing the preprocessed signals, extracting features, and calculating indexes related to sleep quality, wherein the indexes related to sleep quality comprise at least one of sleep stage, number of awakenings, number of micro-awakenings, sleep latency, sleep efficiency, total sleep time and total awakening time.

Illustratively, the wearable device further comprises a power module and a near magnetic field wireless communication module disposed on the eyeshade body, wherein,

the power supply module is used for supplying power to the wearable equipment;

the near magnetic field wireless communication module collects external wireless energy in an electromagnetic induction mode to charge the power supply module.

The wearable device further comprises a data storage module and/or a communication module disposed on the eyecup body, wherein,

the data storage module is used for storing the data output by the microprocessor module;

the communication module is used for transmitting the data output by the microprocessor to a device outside the wearable equipment in a wired or wireless mode.

The wearable device may further include a switch disposed outside the eyecup body, and the switch is configured to perform on/off control of each functional module of the wearable device, such as the first physiological sensor, the second physiological sensor, the third physiological sensor, the fourth physiological sensor, the fifth physiological sensor, the sixth physiological sensor, the preprocessing module, the microprocessor, and the like.

Exemplarily, the wearable device further comprises a display screen arranged on the outer side of the eyeshade body, and the display screen is used for displaying the data output by the microprocessor.

According to the wearable device provided by the embodiment of the invention, as the first biological sensors for acquiring the electroencephalogram signals are arranged at the positions, corresponding to the middle of the forehead, temples on two sides and mastoid process behind two side ears of the user, of the eyeshade body, compared with the existing sleep monitoring device which basically only adopts a forehead acquisition point mode, the wearable device can acquire the electroencephalogram data of the user more comprehensively, and therefore the sleep quality of the user can be evaluated more comprehensively and accurately.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.

FIG. 1 is a functional block diagram of a wearable device in accordance with one embodiment of the present invention;

FIG. 2 is a schematic front view of one embodiment of a wearable device provided by the present invention;

FIG. 3 is a schematic side view of one embodiment of a wearable device provided by the present invention;

FIG. 4 is a top view of one embodiment of a wearable device provided by the present invention;

FIG. 5 is a cross-sectional view of one embodiment of a wearable device provided by the present invention;

fig. 6 is a schematic structural diagram of a slide rail of an embodiment of the wearable device provided by the present invention;

fig. 7 is a schematic diagram of an implementation method for calculating a sleep quality related indicator from a multi-modal physiological signal of a wearable device according to the present invention.

Reference numerals:

1-an eyeshade body; 2-a first physiological sensor; 3-sponge; 4-buckling; 5-a slide rail; 6-a third physiological sensor; 7-a second physiological sensor; 8-a fourth physiological sensor; 9-a fifth physiological sensor; 10-a sixth sensor; 11-magic tape; 12-magnetic buckle; 13-a system-on-a-chip integrated chip (comprising a preprocessing module, a microprocessor module, a data storage module, a communication module and a power supply module); 14-an outer layer; 15-interlayer; 16-an inner layer; 17-switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a subset of embodiments of the invention and not all embodiments of the invention, with the understanding that the invention is not limited to the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention described herein without inventive step, shall fall within the scope of protection of the invention.

In the following, a wearable device, which is a flexible smart sleep detection eyeshade for sleep monitoring, according to an embodiment of the present invention is described with reference to fig. 1 to 7.

As shown in fig. 1, the wearable device 1 according to the embodiment of the present invention includes an eyeshade body 1, and a first physiological sensor 2, a second physiological sensor 7, a third physiological sensor 6, a fourth physiological sensor 8, a fifth physiological sensor 9, a sixth physiological sensor 10, a preprocessing module 1301, a microprocessor module 1302, a data storage module 1303, a communication module 1304, and a power module 1305 that are disposed on the eyeshade body 1.

The first physiological sensor 2 is used for collecting electroencephalogram signals of a user; the second physiological sensor 7 is used for acquiring an eye electrical signal of the user; the third physiological sensor 6 is used for collecting pulse wave signals of the user; the fourth physiological sensor 8 is used for collecting head action signals of the user; the fifth physiological sensor 9 is used for collecting sound signals of the user and the surroundings; the sixth sensor 10 is for detecting the intensity of ambient light.

The preprocessing module 1301 is mainly used for amplifying and filtering weak physiological signals, and an instrument amplifier is adopted in an amplifying circuit to increase the common mode rejection ratio.

The microprocessor 1302 is configured to digitize the preprocessed signals. The microprocessor 1302 may also be configured to remove other noise, such as motion artifacts, from the digitized signals, and the microprocessor 1302 may also be configured to remove interference signals from each set of electrical signals. Further, the microprocessor 1302 may further perform feature parameter extraction on the digitized and denoised sensor signal, and calculate sleep-related indicators including one or more of sleep stage, number of awakenings, number of wakefulness, sleep latency, sleep efficiency, total sleep time, and total wake time by using the feature parameters.

The data storage module 1303 is used for storing the physiological signals and the characteristic parameters processed by the microprocessor module.

The power module 1305 is configured to supply power to the first physiological sensor 2, the second physiological sensor 7, the third physiological sensor 6, the fourth physiological sensor 8, the fifth physiological sensor 9, the sixth physiological sensor 10, the preprocessing module 1301, the microprocessor module 1302, the data storage module 1303, the communication module 1304, and the like of the wearable device.

In some examples, two or more of the preprocessing module, the microprocessor module, the data storage module, the communication module, and the power module may be implemented by the same integrated chip; in further examples, the pre-processing module, the microprocessor module, the data storage module, the communication module, and the power module are implemented by discrete circuitry.

As shown in fig. 2 to 5, a further embodiment of the present invention provides a wearable device, which is a flexible smart sleep detection eyeshade for sleep monitoring, comprising an eyeshade body 1, a first physiological sensor 2, a second physiological sensor 7, a third physiological sensor 6, a fourth physiological sensor 8, a fifth physiological sensor 9, a sixth physiological sensor 10 and an integrated chip 13. The integrated chip 13 includes a preprocessing module, a microprocessor module, a data storage module, a communication module, and a power module.

In a specific implementation manner, the first physiological sensor 2 is used for collecting electroencephalogram signals, is made of conductive fabrics or conductive films or a mixture thereof, and comprises at least five independent conductive electrodes (namely, electroencephalogram electrodes), the electroencephalogram electrodes are assembled on an inner layer of the eyeshade body 1, at least one conductive electrode is assembled at the position, corresponding to the middle of the forehead of a user, of the eyeshade body, at least two conductive electrodes are assembled at the positions, corresponding to the temples on the two sides of the user, of the eyeshade body, at least two conductive electrodes are assembled at the positions, corresponding to the mastoid processes on the two sides of the user, of the eyeshade body, and the total five electroencephalogram electrodes are arranged.

The second physiological sensor 7 is used for collecting an eye electrical signal, is made of a conductive fabric or a conductive film, is assembled on an inner layer of the eye mask body, and comprises at least two conductive electrodes (namely, electro-oculogram electrodes), at least one electro-oculogram electrode is assembled on the eye mask body at a position 1 cm below and 1 cm above the eye mask body at a position corresponding to the left eye corner of the user.

The third physiological sensor 6 is used for collecting pulse wave signals, and the electrodes of the third physiological sensor are assembled on the inner layer of the eye mask body, correspond to the forehead middle lower position of the user, and are positioned below the electroencephalogram forehead middle electrode (namely, the electroencephalogram electrode corresponding to the forehead middle position of the user).

The fourth physiological sensor 8 is used for collecting head movement signals, is assembled on an interlayer of the eye mask body and is positioned at a position corresponding to the middle upper part of the forehead of the user.

The fifth physiological sensor 9 is used for collecting sound signals of the user and the surrounding environment, is assembled on the interlayer of the eyeshade body, and is positioned at a position close to the nose bridge corresponding to the user.

The sixth sensor 10, for monitoring the intensity of ambient light, is mounted on the outer layer of the eyecup body in a position corresponding to above the forehead of the user.

As shown in fig. 5, in a specific example, the eyecup body 1 includes three layers: an outer layer 14, an interlayer 15, and an inner layer 16, wherein the interlayer 15 is two layers. The main material of the eyeshade body is flexible and stretchable, and the inner layer 16 (the part close to the eyes of a user in a use state) is made of soft, comfortable and strong-moisture-absorption material, such as fiber material; the material of the outer layer 14 (the portion away from the eyes of the user in the use state) uses a material having smooth hand feeling, softness and thickness, such as cotton fabric; the eye shield interlayer adopts hard cloth to assist in fixing the circuit. The left and right sides of the eyeshade body are made of elastic stretchable materials, and the end parts of the left and right sides of the eyeshade body are sewn with magic tapes with stickness, so that the eyeshade can be taken and worn at any time. The interlayer 15 is connected by the magnetic buttons 12, the magnetic buttons 12 are fixed on the boundary of the eye shield interlayer 15, and the interlayer can be conveniently opened to observe the internal structure and realize the detachable state of each module through the magnetic button connecting structure. In another implementation, the interlayer 15 may be connected by a hook and loop fastener. The magnetic buckle or the magic tape is connected, so that the magnetic buckle or the magic tape has the characteristic of convenient disassembly.

In addition, the eye shield interlayer 15 may be filled with a soft filler, thereby further fixing the circuit and ensuring comfort of the user (eye shield user). One embodiment of the assembly of the various sensors on the eyecup body is: the first 2, second 7 and third 6 physiological sensors are located on the inner layer 16 of the eye mask, the fourth 8 and fifth 9 physiological sensors are located on the interlayer 15 of the eye mask, and the sixth sensor 10 is located on the outer layer 14 of the eye mask. Both ends are connected with magic subsides 11 through elastic material about eye-shade body 1, make it can adjust eye-shade size.

In addition, the eyeshade body is also provided with a switch 17 which is fixed on the outer layer of the eyeshade body and used for controlling the on/off of each functional module integrated on the mainboard.

According to the wearable device provided by the embodiment of the invention, the eyeshade body is made of multiple layers of different materials, and the inner layer is made of soft and strong-hygroscopicity material, so that adverse effects on the sleep quality of a user can not be brought when the sleep quality of the user is monitored, and the undisturbed sleep monitoring can be realized.

In one example of embodiment of the present invention, the first physiological sensor 2, the second physiological sensor 7, the third physiological sensor 6, the fourth physiological sensor 8, the fifth physiological sensor 9, the sixth sensor 10, and the preprocessing module, the microprocessor module, the data storage module, the communication module, and the power module are connected to each other by wires, which are distributed inside the eyeshade. With this structure, the wires and the like are not exposed to the outside of the eyecup, and thus do not interfere with the user.

In a specific example, the first physiological sensor 2 is made of a conductive fabric or a conductive film or a conductive glue or a mixture thereof.

In another embodiment, the first biosensor 2 is a saline sponge electrode with a fabric base, i.e. the first biosensor uses a combination of a fabric electrode and a saline sponge electrode. The method can ensure the quality of the acquired physiological electric signals and the comfort of the acquisition process. This design combines the advantages of both the saline sponge electrode and the fabric electrode, yet complements their respective drawbacks: the fabric electrode is soft and thin, and the phenomena of poor contact and friction are easy to occur, so that a lot of noise appears in the acquired signal; the saline sponge electrode is soft and has a fixed shape, and can accurately position a measuring position, but the metal base of the saline sponge electrode is hard and has a larger size, so that the undisturbed monitoring effect cannot be achieved. Therefore, the metal base of the saline sponge electrode is replaced by the fabric electrode, and the problems that the fabric electrode signal is noisy and the saline sponge electrode is not portable enough can be solved. In other implementation manners, the second physiological sensor 7, the third physiological sensor 6, the fourth physiological sensor 8, the fifth physiological sensor 9 and the sixth physiological sensor 10 can also adopt an electrode design scheme of a combination of the fabric electrode and the saline sponge electrode, so that the problems of noisy signals of the fabric electrode and inconvenient use of the saline sponge electrode are solved.

The function of the preprocessing module mainly comprises amplification and filtering of weak physiological signals, wherein the amplification circuit adopts an instrument amplifier to increase the common mode rejection ratio. All the preprocessed signals are transmitted to a microprocessor module for digitalization. The microprocessor module may also remove other noise such as motion artifacts, etc. from the digitized signal. The microprocessor module also removes interference signals for each group of electrical signals. For example, one-dimensional wavelet decomposition is implemented on a microprocessor module to separate electroencephalogram signals and electroencephalogram signals from original electroencephalogram signals extracted by an electroencephalogram electrode to extract electroencephalogram signals, and separate electrooculogram signals and electroencephalogram signals from original electrooculogram signals extracted by an electrooculogram electrode to extract electrooculogram signals.

The microprocessor module can also perform feature extraction on the digitized and denoised sensor signals. The physiological signals and the characteristic parameters processed by the microprocessor module can be stored in the data storage module, and can also be wirelessly transmitted to intelligent terminals such as a smart phone, a notebook computer and a server for further analysis when needed. The calculation of the sleep quality related indexes can be realized on a microprocessor module, the obtained calculation result is transmitted to the intelligent terminal through a communication module when needed, and the digitized and noise-removed sensor signal can also be transmitted to the intelligent terminal, so that the feature extraction and the sleep quality index calculation are carried out on the intelligent terminal. Those skilled in the art will appreciate that the wearable device of the embodiment of the present invention may not include the preprocessing module 1301 and the microprocessor module 1302, and the related functions are implemented by an external smart terminal, such as a smart phone. By omitting the pre-processing module 1301 and the microprocessor module 1302 in the wearable device, the weight of the wearable device (smart eyewear) can be reduced, the wearing comfort can be improved, and the cost of the wearable device can be reduced.

Illustratively, the communication module 1304 can employ bluetooth low energy technology or classic bluetooth technology or other suitable technology to wirelessly transmit all data to a smart terminal located outside the eyeshade body for data display and further analysis.

In one particular implementation, the wearable device may include only the first physiological sensor 2. In the implementation mode, the first biosensor for acquiring the electroencephalogram signals is arranged at the positions, corresponding to the middle of the forehead, temples on two sides and mastoid bones behind two side ears of the user, of the eyeshade body, and compared with the existing sleep monitoring device which basically only adopts a mode of forehead acquisition points, the electroencephalogram data of the user can be acquired more comprehensively, so that the sleep quality of the user can be evaluated more comprehensively and accurately.

In further specific implementations, the wearable device may include at least one of a second physiological sensor 7, a third physiological sensor 6, a fourth physiological sensor 8, a fifth physiological sensor 9, and a sixth sensor 10 in addition to the first physiological sensor 2. This implementation mode is owing to at the eye-shade body on the basis that has set up first biosensor, has additionally set up other sensors, therefore can be on the basis of accurate collection brain electrical signal, additionally gather at least one in signals such as eye electrical signal, head action, pulse, sound, ambient light, can assess user's sleep quality more comprehensively, accurately.

Under the condition that the wearable device simultaneously comprises the first physiological sensor 2, the second physiological sensor 7, the third physiological sensor 6, the fourth physiological sensor 8, the fifth physiological sensor 9 and the sixth sensor 10, the wearable device provided by the embodiment of the invention can simultaneously measure six sleep-related information, namely an electroencephalogram signal, an electrooculogram signal, a photoelectric pulse wave signal, a head action signal, a sound signal and an ambient light signal, and extract characteristic parameters from the sleep-related information to jointly define the sleep quality, so that the accuracy of the sleep quality evaluation result can be further ensured.

In a specific implementation scheme, on the basis of the above technical scheme, a sliding rail 5 is further designed in the eyeshade body 1, as shown in fig. 2 and 5, the electroencephalogram electrode 2 of the first physiological sensor is slidably disposed on the sliding rail 5. Illustratively, a slide rail structure is shown in fig. 5, and includes a slide rail 5 and a slider 4 adapted to the slide rail 5 and slidably disposed on the slide rail 5. In one specific implementation, the slide rail is composed of a plurality of approximately gourd-shaped circular track units connected in a tail-to-tail manner, and the slide block 4 matched with the approximately gourd-shaped circular track units is slidably arranged on the slide rail, as shown in fig. 6. At least one brain electrode of the first physiological sensor is connected with the sliding block 4 in a buckling mode and the like, so that the first sensor can slide on the sliding rail.

Due to the adoption of the sliding rail design, the relative position of the electrode and the head of the first physiological sensor can be finely adjusted, so that the relative position of the electrode and the head can be adjusted within a certain range, the head size of different users can be better adapted, an ideal measuring position can be accurately positioned, and the accuracy of the signal acquisition of the first physiological sensor is improved. Based on the same principle, in other implementation manners of the embodiment of the present invention, the second physiological sensor, the third physiological sensor, the fourth physiological sensor, the fifth physiological sensor, and the sixth physiological sensor may also adopt a similar slide rail design, and the position adjustment is also implemented.

One implementation of the power supply mode of the wearable device of the embodiment includes a near magnetic field wireless power supply and a battery power supply. The near magnetic field wireless communication module is fixed in the eye shield interlayer 15 and connected with the integrated chip 13 through a conducting wire, and the coil in the eye shield can collect external magnetic field energy at any time and store the energy in the energy storage module, so that power is supplied to the system through the power supply module. The external magnetic field energy source can be an intelligent terminal or other wireless charging devices. In another implementation, the power may be supplied only by a battery, and the battery is charged by a charging wire connected to an external power supply. The mode that adopts near magnetic field wireless charging, can guarantee that wearable equipment receives outside magnetic field energy at any time and save, supplementary battery power supply capacity has improved the convenience of charging.

The data display mode of the wearable device of the embodiment can comprise two modes of intelligent terminal display and intelligent eye cover outer layer display. In one implementation mode, physiological signals collected by the sensors are processed by the preprocessing module, the microprocessor module and the data storage module and then transmitted to the intelligent terminal through the communication module, and the intelligent terminal displays various sleep characteristic parameters and sleep quality scores of a user. In another implementation, a smart display device may be provided in a position over the outer layer of the eye mask. Further, the smart display device may include a plurality of keys associated with the first physiological sensor, the second physiological sensor, the third physiological sensor, the fourth physiological sensor, the fifth physiological sensor, and the sixth sensor, respectively. The user can selectively display the sleep characteristic parameters collected by the physiological sensors and can also selectively display the sleep quality total score.

An implementation method for calculating a sleep quality related indicator from a multi-modal physiological signal of a wearable device according to an embodiment of the present invention is described below with reference to fig. 7, and the method includes one or more of the following steps: extracting electroencephalogram components with different frequencies including characteristic waves such as Delta, Theta, Alpha, Beta, Gamma and the like from electroencephalogram signals collected by a first physiological sensor; extracting eye movement information from the electrical eye signals acquired by the second physiological sensor, wherein the eye movement information comprises eye movement frequency and other derived characteristic parameters; calculating pulse wave amplitude and heart rate and other derived characteristic parameters from the pulse wave signals acquired by the third physiological sensor; calculating head activity intensity and other derived characteristic parameters from the head motion signals acquired by the fourth physiological sensor; separating snore signals from the sound signals collected by the fifth physiological sensor, and calculating snore intensity, duration and other derived characteristic parameters; the environmental factors affecting sleep, including the time point at which the intensity of the ambient light suddenly changes, etc., are extracted from the ambient light signal collected from the sixth sensor.

And calculating indexes related to sleep by using the characteristic parameters, wherein the indexes comprise one or more of sleep stage, awakening frequency, arousal frequency, sleep latency, sleep efficiency, total sleep time and total arousal time. A specific implementation method is as follows: judging the sleep stages of the user through one or more parameters of EEG characteristics, eye movement frequency, head movement intensity and the like of different frequencies, wherein the sleep stages comprise a waking period, a non-rapid eye movement period and a rapid eye movement period (or a light sleep period and a deep sleep period); calculating the awakening times of the user through characteristic parameters such as electroencephalogram characteristics, eye movement frequency, pulse wave amplitude, heart rate, snore intensity and duration; judging the starting point and the ending point of the sleep behavior by combining the sudden change time point of the ambient light intensity with the information of the change of the head activity intensity, and further calculating the sleep latency and the sleep efficiency.

The method for calculating the sleep quality related index by the multi-modal physiological signals can be realized by adopting the wearable device, and compared with the prior art, the method can relatively comprehensively evaluate the sleep quality of the user.

Although the illustrative embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the foregoing illustrative embodiments are merely exemplary and are not intended to limit the scope of the invention thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as set forth in the appended claims.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another device, or some features may be omitted, or not executed.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present invention should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some of the blocks in the witness verification device according to embodiments of the invention. The present invention may also be embodied as apparatus programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. "plurality" means more than two in the present invention. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

The above description is only for the specific embodiment of the present invention or the description thereof, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A wearable device, characterized in that it comprises an eye mask body and a first physiological sensor arranged on the eye mask body, wherein,

The first physiological sensor includes at least five EEG electrodes disposed on the eyecup body and used to collect the user's EEG signals, wherein at least one of the EEG electrodes is disposed on the eyecup body corresponding to the user. In the middle of the forehead, at least two of the EEG electrodes are arranged on the eye mask body at positions corresponding to the temples on both sides of the user, and at least two of the EEG electrodes are arranged on the eye mask body corresponding to the user's temples. The location of the mastoid process behind the ears on both sides.

2 . The wearable device according to claim 1 , wherein the wearable device further comprises a second physiological sensor, a third physiological sensor, a fourth physiological sensor, and a fifth physiological sensor disposed on the eye mask body. 3 . at least one of the sensor and the sixth sensor, wherein,

The second physiological sensor includes at least two electro-oculographic electrodes disposed on the eyecup body for collecting the user's electro-oculographic signals, wherein at least one of the electro-oculographic electrodes is disposed on the eyecup body corresponding to the user's electro-oculographic signal. at a position above the left corner of the eye, at least one of the electro-ophthalmic electrodes is disposed on the eye mask body at a position corresponding to the outer and upper corner of the user's right eye;

The third physiological sensor includes at least one sensor disposed on the eye mask body for collecting the pulse wave signal of the user, the sensor is disposed at the lower middle position of the eye mask body corresponding to the user's forehead, and be located below the EEG electrode disposed on the eye mask body at a position corresponding to the middle of the user's forehead;

The fourth physiological sensor is arranged on the eye mask body, and is used to collect the head motion signal of the user;

The fifth physiological sensor is arranged on the eye mask body in an area corresponding to the position of the user near the bridge of the nose, and is used to collect the user and surrounding sound signals;

The sixth sensor is disposed on the side of the eyecup body away from the user, and is used to detect ambient light intensity.

3. The wearable device according to claim 1, wherein the first physiological sensor is made of conductive fabric or conductive film or conductive glue or a mixture thereof;

Alternatively, the first physiological sensor is a saline sponge electrode with a fabric base.

4. The wearable device according to claim 1, wherein the wearable device further comprises at least one slide rail disposed on the eye mask body, wherein at least one EEG of the first physiological sensor The electrodes are slidably arranged on the slide rails.

5 . The wearable device according to claim 4 , wherein the wearable device further comprises a slider arranged on a sliding rail, and the sliding rail comprises a plurality of approximately gourd-shaped circular rails connected end to end. 6 . The sliding block is adapted to the approximately gourd-shaped circular track unit and is slidably arranged on the sliding rail, wherein at least one EEG electrode of the first physiological sensor is connected to the sliding block. Connected by snaps.

6. The wearable device according to any one of claims 1 to 5, wherein the eyecup body comprises an inner layer facing the user, an outer layer away from the user, and an inner layer located between the inner layer and the outer layer interlayer, where,

The inner layer is made of soft, comfortable and hygroscopic material;

The outer layer is made of a smooth, soft and thick material;

The interlayer includes at least two layers, wherein at least one layer of the interlayer adopts a material whose hardness is at least greater than that of the inner layer and/or the outer layer, and the different interlayers are connected by magnetic buttons or Velcro;

The left and right sides of the eye mask body are provided with adhesive Velcro for connecting the eye mask, and the left and right sides of the eye mask body include elastic and stretchable materials.

7. The wearable device according to claim 6, wherein a filler is filled between the interlayers, and the hardness of the filler is less than that of the interlayer;

And/or, the first physiological sensor is arranged on the inner layer.

8. The wearable device according to claim 2, wherein the wearable device further comprises a preprocessing module arranged on the eye mask body, wherein,

The preprocessing module is used for collecting data from the first biosensor, the second biosensor, the third biosensor, the fourth biosensor, the fifth biosensor and the sixth sensor The signal is preprocessed, and the preprocessing includes at least one of the following operations: amplifying, filtering, removing noise, and removing motion artifacts.

9. The wearable device according to claim 8, wherein the wearable device further comprises a microprocessor module arranged on the eye mask body, wherein,

The microprocessor module is used to digitize the preprocessed signal, extract features, and calculate indicators related to sleep quality, wherein the indicators related to sleep quality include sleep stage, number of awakenings, number of micro-awakenings, sleep latency , at least one of sleep efficiency, total sleep time, total wake time.

10. The wearable device according to claim 9, wherein the wearable device further comprises a power module and a near-magnetic field wireless communication module arranged on the eye mask body, wherein,

The power module is used to supply power to the wearable device;

The near-magnetic field wireless communication module uses electromagnetic induction to collect external wireless energy for charging the power module.

11. The wearable device according to claim 9 or 10, wherein the wearable device further comprises a data storage module and/or a communication module arranged on the eye mask body, wherein,

The data storage module is used to store the data output by the microprocessor module;

The communication module is used for transmitting the data output by the microprocessor to a device other than the wearable device in a wired or wireless manner.

12 . The wearable device according to claim 11 , wherein the wearable device further comprises a switch arranged outside the eye mask body, and the switch is used to detect the first physiological sensor of the wearable device. 13 . At least one of the second physiological sensor, the third physiological sensor, the fourth physiological sensor, the fifth physiological sensor, the sixth sensor, the preprocessing module, and the microprocessor performs on/off control.

13. The wearable device according to claim 9, wherein the wearable device further comprises a display screen disposed outside the eye mask body, and the display screen is used to display data output by the microprocessor .