CN210447003U

CN210447003U - Eye cover

Info

Publication number: CN210447003U
Application number: CN201821775656.0U
Authority: CN
Inventors: 毛启明; 赵维; 梁杰
Original assignee: Shenzhen Het Data Resources and Cloud Technology Co Ltd
Current assignee: Shenzhen Hetai Intelligent Home Appliance Controller Co ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2020-05-05
Anticipated expiration: 2028-10-30

Abstract

The utility model relates to an eye-shade. The utility model provides an eye-shade includes eye-shade body and sets up at this internal sleep signal acquisition circuit of eye-shade, and sleep signal acquisition circuit includes: the first acquisition unit is used for acquiring a first sleep signal of a wearer; the second acquisition unit is used for acquiring a second sleep signal of the wearer, and the acquisition positions of the first acquisition unit and the second acquisition unit are different; and the processing unit is respectively connected with the first acquisition unit and the second acquisition unit and used for receiving the first sleep signal and the second sleep and carrying out frequency domain analysis on the first sleep signal or the second sleep, and the double-path acquisition unit can be adopted to acquire the sleep signals at different positions, so that the acquisition efficiency and the acquisition precision of the sleep signals are improved.

Description

Eye cover

Technical Field

The utility model relates to an electronic equipment technical field especially relates to eye-shade.

Background

With the acceleration of life rhythm, more and more people have insufficient sleep time, and the quality of sleep state information directly influences the mental state of people. How to ensure the accuracy of the sleep state information and how to obtain higher sleep state information in the shortest time has become a popular research topic.

The traditional eyeshade for monitoring sleep information is mainly based on a single-path acquisition circuit of an electroencephalogram electrode, a reference electrode and a right leg driving electrode to acquire sleep signals of a user. However, in order to make the eyeshade as small as possible in consideration of its aesthetic appearance, the quality of the sleep signal acquired by the single acquisition circuit is poor.

SUMMERY OF THE UTILITY MODEL

Therefore, an eyeshade is needed to be provided for the problem of poor quality of the acquired sleep signal.

An eye shield, comprising: eye-shade body and the sleep signal acquisition circuit who is used for monitoring wearer's sleep state information of setting in eye-shade body, sleep signal acquisition circuit includes:

the first acquisition unit is used for acquiring a first sleep signal of a wearer; and

and the processing unit is respectively connected with the first acquisition unit and the second acquisition unit and is used for receiving the first sleep signal and the second sleep signal and carrying out frequency domain analysis on the first sleep signal or the second sleep signal.

The eye patch comprises an eye patch body and a sleep signal acquisition circuit which is arranged in the eye patch body and used for monitoring the sleep state information of a wearer. Wherein, the sleep signal acquisition circuit includes the first acquisition unit that is used for gathering the first sleep signal of the person of wearing, is used for gathering the second acquisition unit and the processing unit of the second sleep signal of the person of wearing, and the eye-shade adopts the sleep signal of double-circuit acquisition unit collection different positions department, has improved the collection efficiency and the collection precision of sleep signal.

In one embodiment, the sleep signal acquisition circuit comprises:

the first electroencephalogram electrode is used for acquiring a first electroencephalogram signal at a first position; the second brain electrical electrode is used for acquiring a second brain electrical signal at a second position; a reference electrode for acquiring an eye electrical signal of a wearer; a right leg drive electrode for reducing a common mode signal of the wearer; wherein,

the first electroencephalogram electrode, the reference electrode and the right leg driving electrode form a first acquisition unit;

the second brain electrode, the reference electrode and the right leg driving electrode form a second acquisition unit.

In one embodiment, the eyeshade body is further provided with a first eyeshade and a second eyeshade at intervals, wherein the first eyeshade is used for covering the left eye of a wearer, and the second eyeshade is used for covering the right eye of the wearer;

the first electroencephalogram electrode is positioned above the first eye socket, the second electroencephalogram electrode is positioned above the second eye socket, the right leg driving electrode is positioned below the first eye socket, and the reference electrode is positioned below the second eye socket;

the distance between the first electroencephalogram electrode and the second electroencephalogram electrode is a first preset distance, the distance between the right leg driving electrode and the reference electrode is a second preset distance, and the second preset distance is larger than the first preset distance.

In one embodiment, the first electroencephalogram electrode is a first distance from the first orbital center position, the second electroencephalogram electrode is a second distance from the second orbital center position, and the first distance is equal to the second distance.

In one embodiment, the first distance is in a range of 2 cm to 3 cm.

In one embodiment, the first brain electrode, the second brain electrode, the reference electrode and the right leg driving electrode are stainless steel electrodes or flexible conductive fabric electrodes.

In one embodiment, the eyeshade further comprises an audio playing module, the audio playing module is connected with the processing unit, and the processing unit controls the audio playing module to play different types of audio signals according to the sleep state information.

In one embodiment, the eyeshade further comprises a communication module, the communication module is connected with the processing unit, and the communication module is used for communicating with a mobile terminal so as to transmit the sleep state information acquired by the control unit to the mobile terminal.

In one embodiment, the eye shield further comprises a reminding module, wherein the reminding module is connected with the processing unit and used for displaying the state information of the eye shield and waking up the wearer.

In one embodiment, the first brain electrode, the second brain electrode, the reference electrode and the right leg driving electrode are all flexible conductive electrodes.

In one embodiment, the eyeshade body is made of flexible materials, and the eyeshade body is provided with a hook and loop fastener locking portion for adjusting the tightness of the eyeshade worn by a wearer.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of an eye shield;

FIG. 2 is a block diagram of a sleep signal acquisition circuit in one embodiment;

FIG. 3 is a schematic view of an alternative embodiment of the eye shield;

FIG. 4 is a schematic view of a wearer wearing an eye shield in accordance with another embodiment;

FIG. 5 is a schematic view showing the construction of an eye shield in accordance with still another embodiment;

fig. 6 is a block diagram of a sleep signal acquisition circuit in yet another embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first brain electrode may be referred to as a second brain electrode, and similarly, a second brain electrode may be referred to as a first brain electrode, without departing from the scope of the present application. Both the first brain electrode and the second brain electrode are brain electrodes, but they are not the same brain electrode.

Fig. 1 is a schematic structural view of an eye patch in one embodiment. As shown in fig. 1, an eye mask includes: the eyeshade comprises an eyeshade body 10 and a sleep signal acquisition circuit 110 arranged in the eyeshade body 10. Wherein, eye-shade body 10 eye-shade adopts flexible material, for example nylon cloth, elastic fiber or velvet cloth etc. guarantees to press close to the comfort level and the easy washing of skin when wearing this eye-shade of wearer.

Still be equipped with magic subsides locking portion 120 at the both ends of eye-shade body 10, paste locking portion through the magic and connect eye-shade body 10 as an organic whole, form wearable eye-shade. The magic tape locking part can also be used for adjusting the tightness of the eye shield worn by the wearer, and the tightness of the eye shield worn by the wearer can be adjusted according to the head circumference of the wearer.

Fig. 2 is a block diagram of the sleep signal acquisition circuit 110 in one embodiment. The sleep signal acquisition circuit 110 includes a first acquisition unit 111, a second acquisition unit 112, and a processing unit 114. The first collecting unit 111 is used for collecting a first sleep signal of a wearer, and the second collecting unit 112 is used for collecting a second sleep signal of the wearer. The first sleep signal comprises a first electroencephalogram signal and an electro-oculogram signal, the second sleep signal comprises a second electroencephalogram signal and an electro-oculogram signal, and the first electroencephalogram signal and the second electroencephalogram signal are different in collecting position. For example, the first brain electrical signal may be collected 1-2 cm above the left eye of the wearer and the first brain electrical signal may be collected 1-2 cm above the right eye of the wearer.

The first brain electrical signal and the second brain electrical signal can be understood as brain waves (EEG), the brain waves are a method for recording brain activities by using electrophysiological indexes, and the brain waves are formed by summing postsynaptic potentials generated by a large number of neurons synchronously during the activities of the brain, are spontaneous rhythmic nerve electrical activities, have frequency variation range of 1-30 times per second, and can be divided into four wave bands, namely delta (1-3 Hz), theta (4-7 Hz), α (8-13 Hz) and β (14-30 Hz).

The first brain electrical signal and the second brain electrical signal can be α waves with the frequency range of 8-13 Hz, it is to be noted that the first brain electrical signal and the second brain electrical signal can also be delta (1-3 Hz), theta (4-7 Hz), β (14-30 Hz), the eye electrical signal in the first sleep signal and the second sleep signal is the same signal, the eye electrical signal (EOG) can be used for identifying the motion state and the blinking condition of the human eyeball, and further can be used for analyzing the current sleep cycle of a wearer, wherein the sleep cycle can comprise a rapid eye movement period (REM) and a non-rapid eye movement period (NREM).

In one embodiment, the first and

second collecting units

111 and 112 are disposed on an inner side surface of the eyecup body 10, that is, a side facing the wearer's face when the wearer properly wears the earmuff, and the first and second

collecting units

111 and 112 are in direct contact with the wearer when the wearer wears the eyecup so as to collect a sleep signal of the wearer.

It should be noted that the collecting position of the first electroencephalogram signal can be a position 1-2 cm away from the eyebrow bone above the left eye of the wearer when the eye patch is worn at the standard position by the wearer, and the collecting position of the first electroencephalogram signal can be a position 1-2 cm away from the eyebrow bone above the right eye of the wearer when the eye patch is worn at the standard position by the wearer.

In one embodiment, the processing unit 114 is encased in a rigid structure in the interlayer of the eyecup body 10, which protects the structural strength of the processing unit 114.

The processing unit 114 is connected to the first collecting unit 111 and the second collecting unit 112, respectively, and is configured to receive the first sleep signal and the second sleep signal, perform frequency domain analysis on the first sleep signal or the second sleep signal, and further obtain sleep state information of the wearer.

In one embodiment, the processing unit 114 is connected to the first collecting unit 111 and the second collecting unit 112 by flexible wires, so as to ensure the comfort of wearing the eye mask while the impedance of the electrodes is consistent.

Further, the processing unit 114 may include a digital electroencephalogram acquisition chip and a central processing unit CPU, wherein the digital electroencephalogram acquisition chip may be configured to receive the first sleep signal and the second sleep signal, and may convert the sleep signal acquired by the first acquisition unit 111 or the second acquisition unit 112 into a digital signal. The central processing unit may be configured to receive the first sleep signal or the second sleep signal to extract frequency domain features in the first sleep signal or the second sleep signal, so as to obtain a sleep cycle of a wearer and obtain the sleep state information of the wearer.

Wherein the sleep state information may be used to represent a sleep cycle of the wearer. International sleep medicine divides sleep stages into five stages: falling asleep, light sleep, sound sleep, deep sleep, and rapid eye movement. The sleep onset period is the beginning of sleep, at the moment, the electroencephalogram signal begins to change, the frequency gradually slows down, and the amplitude gradually decreases; in the light sleep period, in order to start formal sleep, the electroencephalogram signals gradually go on irregularly at the moment, the frequency and the amplitude are suddenly changed, and occasionally, high-frequency and large-amplitude brainwaves called sleep spindles and low-frequency and large-amplitude brainwaves called K knots appear; during the deep sleep period and the deep sleep period, the brain electrical signals change greatly, the frequency is only 1-2 weeks per second, but the amplitude is increased greatly, and a curve with slow change is presented. The sleep in the four stages of the sleep onset period, the light sleep period, the deep sleep period and the deep sleep period takes about 60 to 90 minutes, and the Rapid Eye Movement Sleep (NREMs) does not occur. During Rapid Eye Movement (REMs), the electroencephalogram signal changes rapidly, and high-frequency, low-amplitude brain waves similar to those in the awake state appear, but saw-tooth waves with distinct characteristics appear in the brain waves, and the eyeball of the wearer can rapidly jump except the change of the electroencephalogram signal.

The eye patch comprises an eye patch body 10 and a sleep signal acquisition circuit 110 which is arranged in the eye patch body 10 and is used for monitoring the sleep state information of a wearer. The sleep signal collecting circuit 110 includes a first collecting unit 111 for collecting a first sleep signal of the wearer, a second collecting unit 112 for collecting a second sleep signal of the wearer, and a processing unit 114, that is, the eye patch adopts two-way collecting units to collect sleep signals at different positions, so that the collecting efficiency and the collecting accuracy of the sleep signals are improved.

Fig. 3 is a schematic structural view of an eye shield in another embodiment. In one embodiment, sleep signal acquisition circuitry 110 includes a first brain electrode P1, a second brain electrode P2, a right leg drive electrode P3, and a reference electrode P4. The first electroencephalogram electrode P1 is used for collecting a first electroencephalogram signal at a first position; a second brain electrode P2 for acquiring a second brain signal at a second location; a right leg drive electrode P3 for reducing the common mode signal of the wearer; reference electrode P4 for collecting an ocular electrical signal of the wearer.

The first electroencephalogram electrode P1, the right leg driving electrode P3, and the reference electrode P4 constitute a first acquisition unit 111 for acquiring a first sleep signal (first sleep signal). The first electroencephalogram electrode P1 is used as the positive electrode of the differential input of the first path of sleep signal, the reference electrode P4 is used as the negative electrode of the differential input of the first path of sleep signal, and the right leg driving electrode P3 is used as the common right leg driving of the differential input of the first path of sleep signal.

The second brain electrode P2, the right leg driving electrode P3 and the reference electrode P4 constitute a second acquisition unit 112 for acquiring a second path of sleep signal (second sleep signal). The second electroencephalogram electrode P2 is used as the anode of the differential input of the second path of sleep signal, the reference electrode P4 is used as the cathode of the differential input of the second path of sleep signal, and the right leg driving electrode P3 is used as the common right leg driving of the differential input of the second path of sleep signal. That is, the first sleep signal and the second sleep signal can be both understood as differential signals. The reference electrode P4 is used as a common reference cathode for differential input of the first path of sleep signal and the second path of sleep signal, and the right leg driving electrode P3 is used as a common right leg driving for differential input of the first path of sleep signal and the second path of sleep signal.

In this embodiment, by adopting the common reference electrode P4 and the common right leg driving electrode P3, the two electrode wires can be reduced while the quality of the sleep signal is not affected, two paths of sleep signals can be collected while the number of collecting electrodes is not increased, the structure is simple, and the collection efficiency and the collection accuracy of the sleep signals are improved.

In one embodiment, first brain electrode P1, second brain electrode P2, reference electrode P4, and right leg drive electrode P3 may all be stainless steel electrodes.

Optionally, the first electroencephalogram electrode P1, the second electroencephalogram electrode P2, the reference electrode P4 and the right leg driving electrode P3 can be flexible conductive fabric electrodes, and the comfort level of the flexible conductive fabric electrodes is higher than that of the hard conductive electrodes and can be better in contact with the skin of a wearer.

In one embodiment, the first electroencephalogram electrode P1, the second electroencephalogram electrode P2, the right leg driving electrode P3 and the reference electrode P4 can be fixed on the inner side surface of the eyeshade body 10 by adopting a fine adjustment structure part, so as to ensure the fitting degree of wearing, wherein the fine adjustment structure part can be an elastic support, supports each electrode based on the elastic support, and simultaneously ensures the fitting degree of wearing by combining the flexible material of the eyeshade body 10.

In one embodiment, the sleep signal acquisition circuit 110 further includes an electrode interface, and the electrode wires of the respective electrodes are connected with the processing unit 114 through the electrode interface, wherein the processing unit 114 may be disposed on the circuit board. The electrode interface is welded on the circuit board by welding, and the electrode interface can be a wiring terminal, which facilitates connection with each electrode and connection with the processing unit 114.

In one embodiment, the eyeshade body 10 is further provided with a first eye socket 122 and a second eye socket 124 at intervals, wherein the first eye socket 122 is used for covering the left eye of the wearer and the second eye socket 124 is used for covering the right eye of the wearer when the wearer wears the eyeshade.

Further, each of the first and

second eye sockets

122, 124 may be shaped as an ellipse having a minor axis with a length in the range of 3-4 cm and a major axis with a length in the range of 5-6 cm.

It should be noted that the shape and size information of the first eye socket 122 and the second eye socket 124 can be set according to the age and sex of the wearer of the eye mask, and the specific formation and size are not further limited herein.

Wherein first brain electrode P1 is located above first eye socket 122, second brain electrode P2 is located above second eye socket 124, right leg drive electrode P3 is located below first eye socket 122, and reference electrode P4 is located below second eye socket 124.

It should be noted that, in the embodiments of the present application, referring to fig. 3, a rectangular coordinate system is constructed by taking a connecting line between the first center o1 of the first eye socket 122 and the second center o2 of the second eye socket 124 as a horizontal axis and taking a line perpendicular to the connecting line as a vertical axis. Wherein, when the wearer is wearing the eyeshade correctly, referring to fig. 4, the first eye socket 122 covers the left eye and the second eye socket 124 covers the right eye, and at the same time, the eyeshade body 10 can also be capable of covering the brow of the wearer above the first eye socket 122 and also covering the cheekbones of the wearer below the first eye socket 122. The upper part and the lower part are defined by taking the horizontal axis of the rectangular coordinate system as a boundary, wherein the upper part can be understood as the area where the positive direction of the longitudinal axis of the coordinate system is located, and the lower part can be understood as the area where the negative direction of the longitudinal axis of the coordinate system is located.

Fig. 5 is a schematic structural view of an eye shield in yet another embodiment. In one embodiment, first brain electrode P1 is located directly above the center of first eye socket 122, first brain electrode P1 is a first distance l1 from the center of first eye socket 122; the second brain electrode P2 is located right above the center of the second eye socket 124, the distance between the second brain electrode P2 and the center of the second eye socket 124 is a second distance l2, and the first distance l1 is equal to the second distance l 2. Meanwhile, the separation of the first brain electrode P1 and the second brain electrode P2 is defined as a first preset distance L1.

Further, the first distance l1 and the second distance l2 can be set to be 2-3 cm; the first predetermined distance L1 may range from 9 to 11 centimeters.

In one embodiment, reference electrode P4 is located below second eyebox 124, and right leg drive electrode P3 is located below first eyebox 122; when the eye shield is properly worn by the wearer, reference electrode P4 is located near the wearer's right cheekbones and right leg drive electrode P3 is located near the wearer's left cheekbones.

Further, reference electrode P4 is located directly below the rightmost edge of second orbit 124, and reference electrode P4 is at a vertical distance d1 from the lower edge of second orbit 124 in the range of 1-2 centimeters; right leg drive electrode P3, located directly below the leftmost edge of first eyebox 122, and the vertical distance d2 of right leg drive electrode P3 from the lower edge of first eyebox 122 is in the range of 1-2 centimeters. Meanwhile, the spacing between the right leg driving electrode P3 and the reference electrode P4 is defined as a second preset distance L2. The second preset distance L2 is greater than the first preset distance L1.

Further, the second predetermined distance L2 may be in the range of 12-14 centimeters.

It should be noted that the first distance L1, the second distance L2, the first preset distance L1, and the second preset distance L2 may be set according to the age and sex of the person wearing the eyeshade.

In the embodiment of the application, the first electroencephalogram electrode P1 is located above the first eye socket 122, the second electroencephalogram electrode P2 is located above the second eye socket 124, the right leg driving electrode P3 is located below the first eye socket 122, the reference electrode P4 is located below the second eye socket 124, the distance between the first electroencephalogram electrode P1 and the reference electrode P4 is increased by reasonably setting the positions of the electrodes, the amplitude of the acquired first electroencephalogram signal is increased, meanwhile, two acquisition units are arranged, the performance of the acquisition units in the eyeshade is optimized, and more data support is provided for analyzing the sleep quality of a user. Meanwhile, each electrode is easy to fix in an eye shield shape and is not easy to drift.

In one embodiment, the eye shield further comprises an audio playback module 130 coupled to the processing unit 114, and the processing unit 114 controls the audio playback module 130 to play different types of audio signals according to the sleep state information. The processing unit 114 can analyze the sleep stage of the current wearer according to the sleep state information of the user, and then control the audio playing module 130 to play music with different types and volumes according to different sleep stages, so as to assist the user in sleeping and help the user sleep with music, safely and effectively. For example, various types of music sets may be stored in the audio playing module 130 to suit different people and users of various ages, and when a wearer enters a sleep stage, music matched to the sleep stage may be played to assist the wearer in sleeping. For example, when the wearer enters a sleep period, a light music may be played to assist the user in entering a shallow sleep period; when the wearer enters a deep sleep period or a deep sleep period, the processing unit 114 may control the audio playing module 130 to stop playing music, etc.; when the sleep time of the wearer reaches the preset time, the music type played by the audio playing module 130 and the information such as the played volume can be changed to wake up the wearer.

Further, referring to fig. 1, the audio playing module 130 is further provided with a first speaker 130a and a second speaker 130b for playing music. The first speaker 130a is spaced apart from the first eye socket 122, and the second speaker 130b is disposed adjacent to the second eye socket 124. When the wearer wears the eyeshade, the first speaker 130a thereof can overlie the left ear of the wearer and the second speaker 130b thereof can overlie the right ear of the wearer so that the wearer can hear music played by the audio playing module 130.

In one embodiment, the eye shield further includes a reminder module 132 coupled to the processing unit 114 for displaying status information of the eye shield and waking the wearer. The state information can be current electric quantity information, communication information, current sleep state information of a wearer and the like of the eye shield. The different information may be displayed with at least one of different icons, numbers, characters. When the sleeping time of the wearer reaches the preset duration, the reminding module 132 can be controlled to emit light or vibrate to wake up the wearer, so that the wearer is prevented from falling asleep over the head and normal work arrangement is prevented from being influenced.

Further, the reminding module 132 comprises a display unit and a vibration unit, wherein the display unit is provided with a display module for displaying status information and a light-emitting module for emitting light; the vibration unit may be a vibrator for vibrating to alert the wearer or to provide a vibratory massage to the wearer.

In one embodiment, the eyewear further comprises a communication module 134 coupled to the processing unit 114, the communication module 134 configured to communicate data with the mobile terminal to transmit the sleep state information obtained by the processing unit 114 to the mobile terminal. The communication module 134 may be a wireless communication module 134 such as a bluetooth module, a WiFi module, a Near Field Communication (NFC) module, and the like, for implementing data transmission with the mobile terminal. For example, when the eye mask and the mobile terminal communicate through the communication module 134, the processing unit 114 of the eye mask may transmit the acquired sleep state information of the wearer and other data to the terminal, so as to perform statistical processing on the sleep data of the wearer on the mobile terminal; or, the eye patch may further obtain music data on the mobile terminal based on the communication module 134, so that the audio playing module 130 plays the music data, and the like.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an eye-shade, its characterized in that, eye-shade body and setting are in sleep signal acquisition circuit in the eye-shade body, wherein, sleep signal acquisition circuit includes:

the first acquisition unit is used for acquiring a first sleep signal of a wearer;

the second acquisition unit is used for acquiring a second sleep signal of the wearer, and the acquisition positions of the first acquisition unit and the second acquisition unit are different; and

and the processing unit is respectively connected with the first acquisition unit and the second acquisition unit and is used for receiving the first sleep signal and the second sleep signal and carrying out frequency domain analysis on the first sleep signal or the second sleep signal so as to acquire the sleep state information of the wearer.

2. The eye shield of claim 1, wherein said sleep signal acquisition circuit comprises:

a first brain electrical electrode for acquiring the first brain electrical signal at a first location; a second brain electrical electrode for acquiring the second brain electrical signal at a second location; a reference electrode for acquiring an eye electrical signal of the wearer; a right leg drive electrode for reducing a common mode signal of the wearer; wherein,

the first electroencephalogram electrode, the reference electrode and the right leg driving electrode form the first acquisition unit;

the second brain electrode, the reference electrode and the right leg driving electrode form the second acquisition unit.

3. The eye shield of claim 2, wherein said eye shield body further comprises first and second spaced apart eye sockets, wherein said first eye socket is adapted to cover a left eye of said wearer and said second eye socket is adapted to cover a right eye of said wearer;

the first brain electrode is located above the first eye socket, the second brain electrode is located above the second eye socket, the right leg drive electrode is located below the first eye socket, and the reference electrode is located below the second eye socket;

4. The eye shield of claim 3, wherein said first brain electrode is a first distance from said first orbital center position, said second brain electrode is a second distance from said second orbital center position, and said first distance is equal to said second distance.

5. The eye shield of claim 4, wherein said first distance is in the range of 2 cm to 3 cm.

6. The eye shield of claim 2, wherein said first brain electrode, second brain electrode, reference electrode and right leg driver electrode are stainless steel electrodes or flexible conductive fabric electrodes.

7. The eye shield of claim 1, further comprising an audio playback module, said audio playback module being connected to said processing unit, said processing unit controlling said audio playback module to play different types of audio signals according to said sleep state information.

8. The eye shield of claim 1, further comprising a communication module connected to said processing unit, said communication module for communicating with a mobile terminal to transmit said sleep state information obtained by said processing unit to said mobile terminal.

9. The eye shield of claim 1, further comprising a reminder module, said reminder module being connected to said processing unit, said reminder module for displaying status information of said eye shield and waking said wearer.

10. The eye shield of claim 1, wherein said eye shield body is of a flexible material and said eye shield body is provided with a hook and loop fastener for adjusting the tightness of said eye shield on said wearer.