CN107049312B - Intelligent glasses - Google Patents

Intelligent glasses Download PDF

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CN107049312B
CN107049312B CN201710172540.1A CN201710172540A CN107049312B CN 107049312 B CN107049312 B CN 107049312B CN 201710172540 A CN201710172540 A CN 201710172540A CN 107049312 B CN107049312 B CN 107049312B
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circuit
sleep state
eye
eye movement
user
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CN107049312A (en
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李若水
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316Modalities, i.e. specific diagnostic methods
    • A61B5/398Electrooculography [EOG], e.g. detecting nystagmus; Electroretinography [ERG]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4806Sleep evaluation
    • A61B5/4809Sleep detection, i.e. determining whether a subject is asleep or not
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4806Sleep evaluation
    • A61B5/4812Detecting sleep stages or cycles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements 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
    • A61B5/6802Sensor mounted on worn items
    • A61B5/6803Head-worn items, e.g. helmets, masks, headphones or goggles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/04Devices for pressing such points, e.g. Shiatsu or Acupressure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M21/00Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M21/02Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12Driving means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16Physical interface with patient
    • A61H2201/1602Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/165Wearable interfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00Devices for specific parts of the body
    • A61H2205/02Head
    • A61H2205/022Face
    • A61H2205/024Eyes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M21/00Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M2021/0005Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
    • A61M2021/0022Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the tactile sense, e.g. vibrations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M21/00Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
    • A61M2021/0005Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
    • A61M2021/0027Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense

Abstract

The invention discloses an intelligent glasses, which comprises a glasses body, earmuffs, a massager, a controller and a headrest, wherein the earmuffs, the massager, the controller and the headrest are arranged on the glasses body, traditional Chinese medicinal materials and auxiliary materials are filled in the headrest to promote the sleep of a user, a control panel of the controller is provided with a signal amplification circuit, an analog-digital conversion circuit, a microprocessor, an audio beat circuit, a motor driving circuit, a data transmission circuit and a power supply circuit, a detection signal of an eye potential sensor on the glasses body is amplified and subjected to digital-analog conversion, the microprocessor calculates eye movement parameters of the user, and judging the sleep state of the user according to a preset parameter comparison table, transmitting the evaluation result to external intelligent equipment through a data transmission circuit, when the user does not fall asleep or light sleep, the microprocessor controls the audio frequency beat circuit to generate beat sound to the loudspeaker of the ear cover for hypnosis, and/or controls the motor to drive the massage disk with the massage head for hypnosis. The invention can monitor and improve the sleep quality of the user and has wider application range.

Description

Intelligent glasses
The applicant is asked to claim priority of the chinese utility patent application having application number "201620216942.8" and title "an intelligent glasses device" filed on 21/3/2016 to the chinese intellectual property office, the entire contents of which are incorporated herein.
Technical Field
The invention relates to intelligent wearable equipment, in particular to intelligent glasses, which are very suitable for people with poor sleep state.
Background
The modern people has great working and learning pressure and is easy to cause insomnia. Especially for teenagers, poor sleep quality will greatly affect their physical and mental development, so it is necessary to monitor their sleep quality and develop corresponding products to improve their sleep quality.
Currently, sleep monitoring devices are sold in the market: one is a medical sleep monitoring device which mainly evaluates the sleep quality of a user by measuring brain waves, and because brain wave signals are extremely weak, the accuracy of equipment is required to be extremely high when the brain waves are recorded, the product cost is high, the volume is large, the measurement is inconvenient, and a large number of electrodes worn on the top of the head of the user can cause discomfort and influence the sleep effect; the other type is a home sleep monitoring device, which is mostly a limb-worn device, and uses an accelerometer to acquire limb movement data of a user in a sleep process, and analyzes the data through a microprocessor to evaluate the sleep state of the user, and since the limb movement and the sleep state are not directly related, misjudgment of a sleep quality evaluation effect is easily generated.
For people with poor sleep quality, some measures can be taken to promote them to fall asleep. Sleep can be generally maintained by taking hypnotics, but the hypnotics can bring side effects such as dizziness, headache, somnolence, absentmindedness, memory decline and the like, and drug dependence can be generated after long-term taking, and insomnia symptoms are aggravated once the drugs are stopped. In addition, the insomnia patients can fall into the hypnotic state by using the massage method, but the prior massage hypnotic products are mostly in bed type or rack type structures, so the prior massage hypnotic products have the problems of large volume, complex structure, higher price and the like, and are not suitable for common users.
The above-mentioned products for monitoring sleep and promoting sleep have drawbacks and their functions are not well combined, which greatly limits the popularization and application of these products. In addition, the applicant of the present invention has devised an intelligent helmet which integrates a sleep monitoring module and a sleep promoting module thereon, but has poor wearing comfort for a user due to the excessive weight and volume of the helmet. If the helmet is changed into a textile fabric hood, the wearing comfort of a user is improved, but the arrangement and installation of the sleep detection module and the sleep promotion module are difficult.
Therefore, the products for monitoring sleep and promoting sleep in the current market cannot well meet the requirements of a large number of users, and the sleep quality of the users cannot be effectively improved in practice. In view of the defects in the prior art, there is a need to optimize the design of the existing products and to provide a new product for improving sleep which is popular in the market.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the intelligent glasses for monitoring and promoting the sleep of the user.
In order to solve the technical problems, the invention provides intelligent glasses, which comprise a glasses body, earmuffs, a massager, a controller and a headrest, wherein the earmuffs, the massager, the controller and the headrest are installed on the glasses body; the controller comprises a control panel, a functional circuit of the control panel is provided with a signal amplification circuit, an analog-to-digital conversion circuit, a microprocessor, an audio beat circuit, a motor driving circuit, a data transmission circuit and a power supply circuit, the eye potential sensor, the signal amplification circuit, the analog-to-digital conversion circuit and the microprocessor are sequentially and electrically connected, the microprocessor is simultaneously and electrically connected with the audio beat circuit, the motor driving circuit and the data transmission circuit, the audio beat circuit is electrically connected with the loudspeaker, the motor driving circuit is electrically connected with the micro motor, and the power supply circuit provides corresponding power supplies for the signal amplification circuit, the digital-to-analog conversion circuit, the microprocessor, the audio beat circuit, the motor driving circuit and the data transmission circuit; the eye potential difference signal during eyeball movement detected and output by the eye potential sensor is amplified by the signal amplifying circuit and converted by the analog-to-digital conversion circuit, the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof of the user are calculated by the microprocessor so as to evaluate the sleep state/quality of the user according to a preset sleep state/quality-eye movement parameter comparison table, and the output evaluation result is sent to external intelligent equipment by the data transmission circuit; when the user does not fall asleep or lightly sleeps, the microprocessor outputs an audio control signal to control the audio beat circuit to generate beat sound, and the beat sound is transmitted to the ear of the user through the loudspeaker to realize hypnosis; and/or the microprocessor outputs a motor control signal to control the motor driving circuit to generate a motor driving signal to drive the micro motor to rotate so as to drive the massage disc, so that the massage heads on the massage disc massage the temples of the user for hypnosis.
Compared with the prior art, the wearable intelligent glasses have the advantages that the eye activity parameters are obtained by detecting the eye electrical signals of the user, the sleep of the user is monitored according to the eye activity parameters, and the user is subjected to hypnosis when the user does not fall asleep or is in a shallow sleep, so that the sleep monitoring and hypnosis functions are combined, and the sleep of the user is facilitated.
Drawings
FIG. 1 is a schematic diagram of the electro-ocular signals as the eye rotates upward and downward;
FIG. 2 is a schematic diagram of the electro-ocular signals as the eye rotates downward and upward;
FIG. 3 is a schematic diagram of the electro-ocular signals when the eyeball rotates right and left again;
FIG. 4 is a schematic diagram of the electro-ocular signals when the eye rotates left to right;
FIG. 5 is a schematic diagram of an electro-oculogram signal during blinking;
FIG. 6 is a schematic diagram of detecting ocular electrical impulses in an ocular electrical signal;
fig. 7 is a flow chart of sleep state monitoring of the present invention.
Fig. 8 is a flow chart of sleep quality monitoring of the present invention.
FIG. 9 is a flow chart of the hypnosis of the present invention;
FIG. 10 is a flow chart of sleep state monitoring, sleep quality monitoring and hypnosis of the present invention;
FIG. 11 is a schematic diagram of the physical structure of the smart eyewear of the present invention;
FIG. 12 is a schematic view of the mirror body of FIG. 10;
fig. 13 is a schematic front view of the earmuff of fig. 10;
fig. 14 is a schematic rear view of the earmuff of fig. 10;
figure 15 is a schematic front view of the massager of figure 10;
figure 16 is a rear schematic view of the massager of figure 10;
FIG. 17 is a schematic view of the controller of FIG. 10;
FIG. 18 is a schematic view of the head cushion of FIG. 10;
fig. 19 is a functional block diagram of a controller of the smart glasses of fig. 10;
fig. 20 is a circuit diagram of the signal amplifying circuit in fig. 19;
FIG. 21 is a circuit diagram of the analog to digital conversion circuit of FIG. 19;
fig. 22 is a circuit diagram of the audio beat circuit of fig. 19;
fig. 23 is a circuit diagram of the motor drive circuit of fig. 19;
FIG. 24 is a circuit diagram of the data transfer circuit of FIG. 19;
fig. 25 is a circuit diagram of the power supply circuit in fig. 19.
Detailed Description
For the purpose of fully describing the present invention, the relationship between sleep state/quality-eye movement parameters, eye electrical signal detection and processing, etc. will be briefly described.
The existing medical research shows that the sleep state/quality has obvious relevance with the eye movement parameter (eye movement parameter for short). The eye movement parameters include frequency, amplitude, and other information of eye movement, wherein the eye movement frequency (referred to as eye movement frequency) is a main eye movement parameter. The sleep cycle may be divided into a non-rapid eye movement cycle and a rapid eye movement cycle according to the change of the eye movement frequency. The non-rapid eye movement sleep is divided into a light sleep period (I period), a light sleep period (II period), a middle sleep period (III period) and a deep sleep period (IV period) 4 period, then the rapid eye movement sleep period is entered, one sleep period is ended, and then the next sleep period is continuously started.
The eyeball is a bipolar sphere, and the movement of the eyeball can generate bioelectricity, particularly a small potential difference exists between the cornea and the retina (the cornea is in a positive potential relative to the retina), so that an electric field is formed around the eye. When the eye moves, such as eyeball rotation or blinking, the spatial phase of the electric field changes, thereby causing a change in potential difference. An Electrooculogram (EOG) can be obtained by using a potential change caused by eye movement, thereby providing the influence of the orientation, angular velocity, and angular acceleration of the eye, and is an important means for studying sleep, visual angle search movement, and the like.
An eye potential sensor is a device for measuring such a potential difference, in which a measuring electrode is attached to the near side of the eye at the time of measurement, the potential of an electrooculogram is defined as zero when the position of the eye is at a fixed reference point, and the eye potential changes when the eyeball moves horizontally/vertically (generally, the eye moves 1 ° in the horizontal direction or the vertical direction, which will generate voltages of about 16uV and 14uV, respectively). Generally, the eye potential sensor is provided with three detection electrodes, wherein a left electrode and a right electrode are respectively arranged at two sides of the bridge of the nose to detect the left eye potential and the right eye potential, and a reference electrode is arranged at the position of the center of the eyebrow to detect the reference potential: when the eyeball moves upwards, the potential of the left electrode and the potential of the right electrode which take the potential of the reference electrode as the reference are both negative; when the eyeball moves downwards, the left electrode potential and the right electrode potential which take the reference electrode potential as the reference are positive; when the eyeball moves to the right, the potential of the left electrode taking the potential of the reference electrode as a reference is negative, and the potential of the right electrode taking the potential of the reference electrode as a reference is positive; when the eyeball moves to the right, the left electrode potential based on the reference electrode potential is positive, and the right electrode potential based on the reference electrode potential is negative.
It is understood that the reference electrode may be a ground electrode (with a zero reference potential), so that the potentials of the left electrode, the right electrode and the reference electrode during the movement of the eyeball are all zero-referenced with the ground electrode, and therefore, the upward, downward, left and right movements of the eyeball may also be determined according to the polarities of the potentials of the left electrode, the right electrode and the reference electrode; in addition, grounding electrode can exist independently of eye potential sensor, and can be arranged outside the eye region according to the requirement, and the grounding electrode is more convenient when arranged on the ear, and is not described any more.
Referring to fig. 1-5, schematic diagrams of eye electrical signals are shown, respectively, of an eyeball rolling up again down, down again up, right again left, left again right, and blinking, wherein: the vertical axis represents voltage value, and the horizontal axis represents time; the upper right eye diagram shows the change in the right electrode potential with respect to the reference electrode over time, and the lower left eye diagram shows the change in the left electrode potential with respect to the reference electrode over time. When the eyeball does not move, the right electrode potential and the left electrode potential are approximately zero; when the eyeball moves, the right electrode potential and the left electrode potential change, and thus a positive pulse or a negative pulse (a very short sudden electric signal within the duration of a break) is formed. The amplitude of the pulses represents the eye movement amplitude, the number of the pulses represents the eye movement frequency, and the eye movement frequency in a certain time is the eye movement frequency; after obtaining these characteristic parameters, the eye movement frequency change rate, eye movement amplitude change rate and other characteristic parameters can be extracted according to a known numerical analysis method.
As shown in fig. 1 to 5, when the left and right electrode potentials are detected to exceed the set threshold value in a short time, an effective eye movement can be determined; and the direction of the eye movement can be known according to the polarity of the electric potentials of the left electrode and the right electrode. For example: at time t1 when the eyeball goes up in fig. 1, both the right and left electro-grams appear as negative potentials (negative pulses); at time t2 with the eyeball down in FIG. 2, both the right and left eye electrograms appear to be positive potentials (positive pulses); in fig. 3, at a time t3 to the right of the eyeball, the right electrogram appears as a negative potential (negative pulse) and the left electrogram appears as a positive potential (positive pulse); in fig. 4, at a time t3 when the eyeball is to the left, the right eye diagram is represented by a positive potential (positive pulse) and the left eye diagram is represented by a negative potential (negative pulse); in fig. 5, when pulses having the same amplitude are continuously detected in the right eye electrogram and the left eye electrogram for a predetermined period of time (for example, when pulses of about four times to 100 μ V are continuously detected), it can be characterized that the user blinks.
Therefore, after the eye potential difference signals (eye potential signals or eye electric signals for short) of the left electrode and the right electrode are obtained by the eye potential sensor, whether the eyeball rotates or not can be known, and the moving directions of the eyeball, such as upward, downward, left and right directions, can be judged. Further, since the blink is a characteristic state in the wake-up, it is possible to characterize the user as the wake-up state by continuously detecting the number of amplitude pulses of the same level for a certain period of time.
The present invention can detect the above-described electric eye pulse in the following manner, and the number of eye movements within a set time can be obtained as described below.
Referring to fig. 6, a schematic diagram of detecting ocular electrical impulses in ocular electrical signals is shown. The basic process of ocular electrical pulse detection includes the following steps.
First, a data processing device (e.g., a local controller, an external smart terminal, a remote server, etc.) plots waveforms of the detected ocular signals (time is horizontal axis, and the ocular signal amplitude is vertical axis) on a time-amplitude coordinate system according to the detected ocular signals (which may be filtered and amplified as necessary in advance). The electro-ocular signal waveform can be divided into a plurality of frames for analysis (for example, 30S per frame), whether the user is in an awake state or a sleep state can be judged by detecting the number of electro-ocular pulses in each frame, and the sleep state can be further judged to be in the sleep state/stage.
Secondly, a detection window moving along the time axis direction is established on a time-amplitude coordinate system, and the length and the height threshold of the detection window can be comprehensively determined according to the blink speed (each blink duration) and the eye electrical signal amplitude thereof in the awakening state, the eye movement speed (each eye movement duration) and the eye electrical signal amplitude thereof in the sleeping state, which are measured and counted in advance, for example, the length of the detection window is 0.6S, and the height threshold of the detection window is 140 uV. It is understood that the present invention may be configured with a positive detection window for detecting positive ocular electrical impulses and a negative detection window for detecting negative ocular electrical impulses; in addition, the invention can also be provided with two or more than two detection windows, such as an awakening state detection window, a sleeping state detection window and the like, so that the eye electrical pulse can be accurately detected aiming at different states, thereby being convenient for improving the accuracy of the sleep stage detection.
Finally, within a set time (for example, one frame), the detection window is moved in the time axis direction to detect the electrical eye pulse in the waveform diagram of the electrical eye signal in the time-amplitude coordinate system: if the fluctuation amplitude of the waveform amplitude of the electro-ocular signal waveform in the detection window exceeds the set detection window height threshold, judging that an electro-ocular pulse is detected, and counting the number of eye movements; otherwise, the number of eye movements is not counted.
Generally, for the detected eye electrical pulse, the generation time of the eye electrical pulse, the amplitude of the eye electrical pulse (the fluctuation amplitude of the eye electrical pulse in the detection window), the direction of the eye electrical pulse (a positive pulse or a negative pulse can be determined according to whether the difference value between the pulse peak value and the reference potential is positive or negative), and the like can be recorded at the same time, so that after the characteristics of the eye electrical pulse are subjected to numerical processing, data such as the eye movement frequency, the eye movement amplitude, the change rate thereof, and the like can be obtained, and the user can be further conveniently judged to be in an awake state or a sleep state.
As mentioned above, the blinking action will only occur when the user is awake; when blinking, the left electrode's eye electrical pulse and the right electrode's eye electrical pulse will have the same polarity (i.e., both positive and negative pulses). If continuous eye electric pulses with approximate amplitudes appear in a set time, the user can be judged to be in an awakening state; otherwise, the user can be judged to be in the sleep state.
Because the user will not blink in the sleeping state, the eyeball of the user can move more in the horizontal direction, and the polarity of the electric eye pulse of the left electrode is opposite to that of the electric eye pulse of the right electrode (namely, one is positive pulse and the other is negative pulse). Generally, the frequency of the electric eye pulse in the sleep state is smaller than that in the wake state, and the frequency of the electric eye pulse in the rapid eye movement sleep is larger than that in the non-rapid eye movement sleep, wherein the frequency of the eye movement in the non-rapid eye movement sleep stages I (light sleep stage), II (light sleep stage), III (middle sleep stage), and IV (deep sleep stage) tends to decrease.
Therefore, the sleep stage can be performed through the eye movement frequency and the change rate thereof, and the eye movement amplitude and the change rate thereof. Generally, the eye movement frequency is represented by the ratio of the number of electric eye pulses (corresponding to the number of eye movements) to the set time within the set time, the eye movement amplitude is represented by the amplitude of the electric eye pulses, and the eye movement direction is represented by the polarity of the difference between the peak reference potentials of the electric eye pulses. After the eye movement frequency and the eye movement amplitude are obtained by the above method, parameters such as a corresponding eye movement frequency change rate and an eye movement amplitude change rate can be calculated by a numerical calculation method (differentiation), and specific reference may be made to documents related to the numerical calculation method.
Since individual sleep characteristics of different users may vary greatly, it is generally necessary to calibrate the characteristics of the users at various stages before using the present invention. The specific method is that the electrooculogram of the user in several normal sleeping processes is recorded, then relevant characteristic parameters such as eye movement frequency and change rate thereof, eye movement amplitude and change rate thereof and the like in each electrooculogram are extracted, and standard eye movement parameters in various states are obtained through statistical analysis, so that a sleeping state/quality-eye movement parameter comparison table (or a sleeping state/quality-eye movement parameter comparison map) is made according to the standard eye movement parameters.
The sleep state/quality-eye movement parameter comparison table comprises related sleep characteristic parameters and threshold values (or ranges) in each sleep stage/state. Specifically, the invention at least comprises standard values and threshold values of the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof in each sleep stage/state; in addition, the duration of each sleep stage/state, etc. may also be included.
Therefore, the current sleep state/quality of the user can be judged by comparing the electro-oculogram characteristic parameters detected and extracted in the sleep process of the user with the characteristic parameters and the threshold values in the sleep state/quality-eye movement parameter comparison table. In the current period, the sleep stage/state of the user can be determined according to whether the current electro-oculogram waveform characteristic parameter is in the characteristic parameter threshold interval under the corresponding sleep stage/state. Further, in the duration time of the corresponding sleep stage/state, the sleep quality of the user in the sleep stage/state is judged according to the deviation of the electro-oculogram waveform characteristic parameter and the standard value of the characteristic parameter in the corresponding sleep stage/state, the smaller the deviation is, the better the quality is, and the larger the deviation is, the better the quality is.
Without loss of generality, the present invention simply classifies the sleep stages/states of a user into a non-sleep state (corresponding to a medically awakened period), a light sleep state (corresponding to medically non-rapid eye movement sleep periods I and II), a deep sleep state (corresponding to medically non-rapid eye movement sleep periods III and IV), and a rapid eye movement sleep state (corresponding to medically rapid eye movement sleep periods). The sleep stages/states can be simply judged according to the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof and other characteristic parameters. As further described below.
As described above, after obtaining the electro-ocular detection signal, the present invention can detect the electro-ocular pulses according to the electro-ocular waveform pattern, and determine the number, amplitude and polarity of the electro-ocular pulses, thereby obtaining the eye movement frequency, the eye movement amplitude and the eye movement direction, and further obtaining the current values of the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof by a numerical analysis method, so as to compare the current values with the threshold values of the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof set in the corresponding sleep state, and finally obtain the current sleep state of the user.
Further, within the duration of the corresponding sleep state, the statistical value of the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof in the time period may be compared with the standard value of the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof set in the sleep state, so as to obtain the corresponding deviation set, and then the deviation sets are scored according to the corresponding assessment policy, so as to assess the score or grade of the sleep quality. Here, the present invention evaluates the sleep quality in connection with the duration in each sleep stage/state, especially in the duration in the deep sleep state. In general, the longer the duration of deep sleep, the better the quality of sleep.
Please refer to fig. 7, which is a flowchart illustrating a method for determining a sleep state of a user according to the present invention. The process can determine four states, namely a non-sleep state, a light sleep state, a deep sleep state and a rapid eye movement sleep state, as follows:
first, it is determined whether or not the sleep state is not entered (i.e., the awake state). The determination condition is as in S710, specifically, whether the eye movement frequency in the current period (e.g., one frame 30S) is greater than the eye movement frequency threshold in the non-sleep state, and whether the eye movement amplitude of each time is close to the preset eye movement amplitude in the non-sleep state (generally, a deviation of 10% may be allowed), that is, from the view of the electro-ocular waveform diagram, the electro-ocular pulse with several consecutive close amplitudes appears in the set time. If the condition is satisfied, determining that the user is in a non-sleep state, as shown in step S740; otherwise, the user is considered to enter the sleep state.
Secondly, in the case where the user enters the sleep state, it is further determined whether the eye movement sleep is not fast (including the light sleep and the deep sleep) or fast. The specific determination condition is as in step S720, namely: judging whether the eye movement frequency in the current period is larger than the eye movement frequency threshold of the rapid eye movement sleep state (under the normal condition, the eye movement frequency is smaller than the eye movement frequency threshold of the non-sleep state): if yes, determining that the user enters a rapid eye movement sleep state, as shown in step S770; otherwise, a non-rapid eye movement sleep state.
And finally, further judging whether the sleep state is a light sleep state or a deep sleep state under the non-rapid eye movement sleep state. Specifically, the method comprises the following steps: it is determined whether the change rate of the eye movement frequency in the current period is smaller than the change rate threshold of the eye movement frequency in the deep sleep state, and whether the change rate of the eye movement amplitude in the current period is smaller than the change rate threshold of the eye movement amplitude in the deep sleep state, as shown in step S730, the electro-oculogram is slow wave during the deep sleep, and the eye movement frequency and amplitude change are both small. If the determination condition of step S730 is satisfied, determining that the user enters a deep sleep state, in step S760; otherwise, the user is determined to be in a light sleep state, as shown in step S750.
The present invention can not only determine the sleep state of the user (non-sleep state, light sleep state, deep sleep state, and rapid eye movement sleep state), but also further determine the sleep quality of the user, and the basic method thereof is as follows.
And S810, counting the duration of each sleep state, the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof in each sleep state duration time period to obtain a statistical value set of the characteristic parameters to be compared, wherein the statistical method is common knowledge and is not repeated.
S820, comparing each element in the statistical value set of the characteristic parameters to be compared (i.e. the duration of each sleep state, and the statistical values of the eye movement frequency and its change rate, the eye movement amplitude and its change rate in each sleep state duration period) with each element in the standard value set of the corresponding characteristic parameters in the sleep state/quality-eye movement parameter comparison table one by one, to obtain an offset value set between the corresponding characteristic parameter elements.
And S830, calculating a sleep quality score/grade according to a preset sleep quality evaluation strategy. The sleep quality evaluation strategy calculates scores by weighting a plurality of characteristic parameters, so that the statistical values of the duration time of each sleep state, the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof in the duration time period of each sleep state and the deviation of the standard values of the corresponding characteristic parameters in the sleep state/quality-movement parameter comparison table can be graded by a corresponding formula of a person: the larger the deviation value is, the smaller the score is; the smaller the deviation value, the higher the score. Generally, the duration of deep sleep, the ratio of deep sleep duration/light sleep duration should be set to a higher weight coefficient. The final sleep quality assessment result may be a specific score (e.g., 5-point score, 10-point score, or 100-point score), or may be in several grades (e.g., good, medium, and bad), which is not described again.
After the sleep quality result is obtained according to the method, the sleep quality result can be correspondingly sent to an external terminal so as to take follow-up measures, such as manual intervention (such as rapid eye movement intervention) and adjustment of the standard value and the threshold value of the characteristic parameter in the sleep state/quality-eye movement parameter comparison table.
After the sleep state/quality of the user is obtained according to the mode, the hypnosis can be further performed. Specifically, the hypnosis is carried out in a non-sleep state or a light sleep state, and the hypnosis mode is low-frequency audio beat sound hypnosis and massage hypnosis. The specific flow is as follows.
Fig. 9 is a flow chart of hypnosis according to the present invention. The hypnosis route of the invention comprises the following steps:
in step S910, a sleep state evaluation result of the user is obtained. The sleep state is one of a non-sleep state, a light sleep state, a deep sleep state and a rapid eye movement sleep state, and the specific method is as described above.
In step S920, it is determined whether the sleep state is a non-sleep state or a light sleep state, and if so, the process proceeds to step S930, where hypnosis is required in the non-sleep state or the light sleep state.
And step S930, outputting an audio control signal for audio hypnosis and/or outputting a motor control signal for hypnosis and massage. In the non-sleep state or the light sleep state, audio hypnosis and/or massage hypnosis can be adopted, so that the corresponding equipment is controlled to operate by correspondingly outputting a control signal, and therefore, targeted hypnosis can be realized, and the sleep quality is improved. Then, when the user enters the deep sleep state, the audio control signal and the motor control signal are reset, and thus the hypnosis is stopped.
Three control processes of sleep state monitoring, sleep quality monitoring and hypnosis are introduced, and the three control processes can be operated independently or in combination. The following is a technical scheme combining sleep state, quality monitoring and hypnosis, and the specific flow is as follows.
Fig. 10 is a flow chart of sleep state monitoring, sleep quality monitoring and hypnosis according to the present invention. It mainly comprises the following steps, the details of which can be analysed with reference to the foregoing.
And S1010, acquiring an eye electric signal. Specifically, eye electrical signals are detected by an eye potential sensor, and the eye electrical signals are related to the sleep state and the quality.
And S1020, analyzing and calculating eye potential difference signals during the movement of the eyeballs to obtain related eye movement parameters. The analysis and calculation method is as described above, and the specific parameters include the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof, and the like.
And S1030, comparing the eye movement parameters with the sleep state/quality-eye movement parameter comparison table. Namely: analyzing whether each eye movement parameter in the set time is within a preset threshold interval, and the deviation of each eye movement parameter from a standard value, and the like.
And S1040, evaluating the sleep state/quality according to the comparison result. Wherein the sleep state is one of a non-sleep state, a light sleep state, a deep sleep state and a rapid eye movement sleep state; the sleep quality is good, moderate or poor. Specific assessment method as described above.
S1050, judging whether the sleeping state is a non-sleeping state or a light sleeping state. If yes, go to step S1060, i.e., hypnosis is required in the non-sleep state or the light sleep state; otherwise, after resetting each hypnosis control signal, returning to step S1010, i.e. hypnosis is terminated in the deep sleep state.
And S1060, outputting audio control signals for audio hypnosis and/or outputting motor control signals for hypnosis and massage. In the non-sleep state or the light sleep state, a corresponding control signal is sent out to perform hypnosis so as to improve the sleep quality, and then the step S1010 is returned to.
As shown in fig. 10, the present invention can analyze, calculate, and process the eye movement parameter by detecting the eye electrical signal, thereby evaluating the sleep state/quality of the user, and further performing hypnosis according to whether it is a non-sleep state or a light sleep state, which combines sleep monitoring with hypnosis to improve the sleep of the user.
According to the above principle and technical scheme, the present invention specifically uses smart glasses to achieve sleep state/quality monitoring and hypnosis, which is described in detail below.
The intelligent glasses are provided with three-point eye potential sensors, and electrodes of the eye potential sensors are attached to the near side of eyes to detect and output eye potential difference signals during eyeball movement. By analyzing these eye potential difference signals during the eye movement, the relevant eye movement parameters can be calculated and compared with the relationship chart (table) of the sleep state/quality-eye movement parameters, thereby evaluating the sleep state/quality of the user. When the user is in a non-sleep state or a light sleep state, a low-frequency audio signal or massage hypnosis can be output.
In the following preferred embodiments of the present invention, the eye movement parameters of the eye movement parameters are obtained by detecting the eye electrical signals of the user to evaluate the sleep state and the sleep quality of the user, so that the sleep state of the user is monitored, and the accuracy and precision are high; in addition, the embodiment of the invention can adopt audio frequency beat and head massage to hypnotize; therefore, the sleep monitoring and the hypnosis are combined, and the sleep of the user is improved.
In addition, the embodiment of the invention also combines traditional Chinese medicines to improve the sleep effect, thereby having the function of promoting sleep.
The embodiment of the invention adopts a glasses type structure, the main functional modules are respectively arranged on the glasses body, the mounting positions of the main functional modules correspond to the eyes, the ears and the temple of a user, the structure is compact, and the wearing comfort is good.
Particularly, the embodiment of the invention optimally designs the structures of all parts, and the parts can achieve ideal performance by adopting common elements, so that the product cost is greatly reduced, and the popularization and the use are easy, thereby having better market prospect.
The eye potential sensor used in the embodiment of the present invention is a conventional detecting element, and the detailed structure thereof will not be described in detail in view of space limitation. Since the eye potential sensing only requires the arrangement of electrodes around the eyes, the measurement can be performed without imposing a burden on the wearer, as in JINS MEME glasses (manufactured by japan eye gesture corporation). Therefore, the embodiment of the invention adopts the eye potential sensor to detect the eye movement parameters, which is helpful for realizing the miniaturization of the product and improving the wearing comfort of the product.
The following detailed description is further described with reference to the accompanying drawings and specific embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
The smart glasses in one embodiment of the present invention integrate the earmuffs, the massagers and the controller on the glasses, and can evaluate the sleeping state and the sleeping quality of the user by monitoring the eye activity parameters of the user, and adopt the audio beat and the head massage to hypnotize, and combine the traditional Chinese medicine to improve the sleeping effect, which will be described in detail with reference to the specific embodiments shown in fig. 11 to 25.
Referring to fig. 11-18, product schematics of smart eyewear of the present invention are shown, wherein: FIG. 11 is a schematic diagram of the physical structure of the smart eyewear of the present invention; FIG. 12 is a schematic view of the mirror body of FIG. 11; fig. 13 is a schematic front view of the earmuff of fig. 11; fig. 14 is a schematic rear view of the earmuff of fig. 11; FIG. 15 is a schematic front view of the massager of FIG. 11; figure 16 is a rear schematic view of the massager of figure 11; FIG. 17 is a schematic view of the controller of FIG. 11; fig. 18 is a schematic view of the head pad of fig. 11.
As shown in fig. 11 to 18, the smart glasses 100 are composed of a glasses body 110, an ear cover 120, a massager 130, a controller 140, a headrest 150, and the like. The mirror body 110 comprises a mirror frame 112 and a mirror leg 113, on which related functional modules and devices are mounted according to the arrow position in fig. 1: the frame 112 is provided with an eye potential sensor 111 corresponding to the position of the glabella and the nose bridge of the user, and the eye potential sensor 111 can detect and output an eye potential difference signal (referred to as an eye potential signal, an eye electrical signal or an eye electrical signal for short) representing the eye movement parameter of the user; ear cups 120 are arranged on the temples 113 corresponding to the ears of the user, and the ear cups 120 are provided with speakers 121 so as to receive audio beats and hypnotize the user; a massager 130 is arranged on the temple 113 corresponding to the temple position of the user, the massager 130 is provided with a massage disc 132 driven by a micro motor 131, wherein the massage disc 132 is distributed with a plurality of massage heads 133 made of soft materials (such as silica gel) so as to massage the head of the user for hypnosis; the controller 140 is disposed between two lens rings of the lens frame 112, and related functional circuits of the control board 142 in the controller 140 are respectively electrically connected to the eye potential sensor 111 of the lens body 110, the speaker 121 of the ear muff 120, and the micro motor 131 of the massager 130 (fig. 11 to 18 omit power/data lines for electrically connecting the controller 140 with the eye potential sensor 111, the speaker 121, and the micro motor 131, and those skilled in the art can easily arrange these wires, for example, a wire slot can be formed along the lens body for wiring, which is not described again), so as to perform scheduling control on the eye potential sensor 111, the speaker 121, and the micro motor 131; the head pad 150 is attached to the inner side of the temples 113, and the head pad 150 is a double-layer fabric in which traditional Chinese medicinal materials and auxiliary materials are filled to promote the user to sleep.
It is understood that, as an alternative solution, the controller 140 in the present invention may be separated from the mirror body 110, that is, the controller 140 is not mounted on the mirror body 110, but is mounted on other suitable locations for facilitating the electrical connection between the controller 140 and the eye potential difference sensor 111, the speaker 121, and the micro-motor 131, such as a support at a bed head, a ceiling, a wall, etc., particularly for facilitating the installation of wiring. In addition, if the controller 140 and the eye potential difference sensor 111, the speaker 121, and the micro motor 131 are in wireless communication, that is, when the eye potential difference sensor 111, the speaker 121, the micro motor 131, and the controller 140 are respectively configured with the wireless transceiver module, the controller 140 can be configured at other places more flexibly, and at this time, the controller 140 can be completely replaced by a computer, a notebook, a mobile phone intelligent terminal, or even a remote server is feasible.
The smart glasses 100 described above may perform the following functions: the eye potential sensor 111 on the lens body 110 detects the eye activity parameters of the user, the speaker 121 in the ear muff 120 receives the audio beat to hypnotize the user, the massage head 133 on the massage disk 132 in the massager 130 is driven by the micro motor 131 to massage and hypnotize the head of the user, and the controller 140 performs scheduling control on the eye potential sensor 111, the speaker 121 and the micro motor 131 so that the functions of monitoring sleep and promoting sleep are completed according to a preset strategy; the head pad 150 attached to the inner side of the two legs of the frame of the mirror body 110 ensures the wearing comfort of the user and promotes the sleep.
The product structure of the mirror body 110, the ear muffs 120, the massager 130, the controller 140, the headrest 150, etc. will be described in detail with reference to fig. 11 to 18.
As shown in fig. 12, the glasses body 110 includes a glasses frame 112 and a glasses leg 113 (refer to the frame structure of the ordinary glasses, and a wiring groove may be correspondingly formed), both of the glasses frame 112 and the glasses leg 113 may be made of PVC material. The frame 112 and the temple 113 are respectively provided with relevant devices such as the eye potential sensor 111, the ear muffs 120, the massager 130, the controller 140, etc. (the mounting method may be bonding with strong glue, and other mounting methods such as screwing may be used as well), as described below.
Three-point eye potential sensors 111 are provided near the nose pad of the frame 112 (corresponding to the glabella and the nose bridge of the user), and electrodes of the eye potential sensors 111 are attached to the near sides of the eyes, so that an eye potential difference signal during the movement of the eyeball can be detected and output. By analyzing these eye potential difference signals during the eye movement, the relevant eye movement parameters can be calculated and compared with the relationship chart (table) of the sleep state/quality-eye movement parameters, thereby evaluating the sleep state/quality of the user.
The controller base 114 is disposed between the two lens rings of the lens frame 112, the controller housing 141 of the controller 140 is mounted on the controller base 114, and the shape and size of the controller housing 141 only satisfy the mounting space of the control board 142, which is not described again. Typically, the controller base 114 is perforated in the middle to expose the nose to avoid discomfort. If the controller 140 and its controller housing 141 are large, the controller base 114 may be enlarged to the face so as to leave a corresponding controller mounting position.
The front of the temple 113 is installed with the massager 130, which is provided with a massager via hole 1131, so that the massage plate 132 of the massager 130 can pass through the massager via hole 1131, whereby the massage head 133 can be attached to the temple position of the user to massage the head of the user when the massage plate 132 is driven by the micro motor 131.
The earmuffs 120 are installed at the rear of the temples 113, and the earmuff through holes 1132 are formed at the positions, so that the ear parts of the users can be covered by the cover bodies 122 of the earmuffs 120, thereby isolating the external sound, and enabling the users to receive the sound from the speakers 121 only (if the sound is a deep beat sound, the hypnosis can be performed).
The temples 113 are attached at the inner side thereof with a head pad 150, and the head pad 150 may be formed in a U-shaped ring structure, thereby making it comfortable for a user to wear the lens body 110, and the pad 150 may also serve to promote sleep.
The temple 113 of the present embodiment may optionally be coupled with an elastic band 115 to better secure the body 110 to the head of the user, thereby preventing the smart glasses 100 from falling off, thereby ensuring that the smart glasses 100 are continuously applied to the user. Of course, the elastic band 115 can be replaced by a magic tape, and the description thereof is omitted. In addition, the position of the frame 120 corresponding to the rim of the glasses can be optionally provided with a light shielding sheet, which is not described again.
As shown in fig. 13 and 14, the ear muff 120 includes a cover 123 made of PVC material, the speaker 121 is disposed inside the cover 123, an annular pad 122 made of soft material (such as velvet) is disposed on the inner side of the cover 123, the outer diameter of the pad 122 is smaller than the outer diameter of the cover 123, so that the inner side of the cover 121 is adhered to the outer side of the eye through hole 1332 of the temple 133, and the pad 123 passes through the eye through hole 1332 of the temple 133 and then tightly covers the ear of the user. Thus, the external sound is isolated, and the user can receive only the sound from the speaker 121 (hypnosis is possible if the sound is a deep beat sound). The earmuffs 120 are simple in structure and convenient and fast to install, and help ensure wearing comfort of a user. In fact, the earmuffs 120 can be universal earmuffs, which can be attached (e.g., glued) to the body of the smart glasses and electrically connected to the controller.
As shown in fig. 15 and 16, the massager 130 includes a massage frame 134, a massage disc 132 and a micro motor 131 (driven by dc voltage), the massage disc 132 is provided with a plurality of massage heads 133 made of soft material (such as silica gel) and having spherical or other shapes (protrusions), the outer diameter of the massage disc 132 is smaller than the outer diameter of the massage frame 134, the micro motor 131 and the massage disc 132 are axially positioned and supported on the massage frame 134, and the rotating shaft of the massage disc 132 is in transmission connection with the power output shaft of the micro motor 131 (the transmission connection mode may be a conventional structure in the art, such as a speed reducer, a coupling, etc., and will not be described any more), so that the massage disc 132 is driven by the micro motor 131. The inner side of the massage frame 134 is adhered to the outer side of the massager through hole 1331 of the temple 133, and after the massage disk 132 passes through the massager through hole 1331 of the temple 133, the massage head 133 on the massage disk 132 is attached to the temple position of the user. When the micro motor 131 is started, the massage disk 132 rotates, and the massage heads 133 on the massage disk 132 massage the temples of the user's head, thereby achieving the purpose of massage hypnosis. The massage plate 132 can be implemented by purchasing a general-purpose product, which is attached (e.g., glued) to the body of the smart glasses and electrically connected to the controller.
As shown in fig. 17, the controller 140 includes a controller case 141 and a control board 142, the controller case 141 has a substantially inverted triangle shape, a bottom surface thereof is bonded to the controller base 114 between the lens rings of the lens frame 112, and the control board 142 is mounted inside the controller case 141. The control board 142 is provided with a plurality of functional circuits for scheduling and controlling the eye potential sensor 111, the speaker 121 and the micro motor 131, so as to complete the related functions of the smart glasses 100. The functional circuit may adopt different circuit structures, and the size of the occupied space of the control board 142 varies with different selected components, and the shape and size of the controller casing 141 should be adjusted at this time, which is not described herein again. As described above, the controller 140 may be separated from the glasses body of the smart glasses, and may use a smart terminal or a remote server to implement corresponding functions.
As shown in fig. 6, the headrest 150 has a U-shaped double-layer fabric structure, which can be attached to the inner sides of the temples 113 by glue, and the width of the headrest 150 can be greater than the width of the temples 133, which is comfortable when the lens body 110 is worn on the head of a user. The side wall of the head cushion 150 is respectively provided with an ear muff through hole 153 and a massager through hole 154, the ear muff through hole 153 is used for the pad 123 of the ear muff 120 to stick to the ear of the user after passing through, the massager through hole 154 is used for the massage disc 132 of the massager 130 to pass through, and then the massage head 133 sticks to the temple part of the user.
Specifically, the head pad 150 is divided into a plurality of head pad units 152 by sewing threads 151, wherein each head pad unit is filled with a sleep promoting filler (not shown), and the filler in the head pad units 152 can play a certain role in promoting sleep of a user.
In this embodiment, the double-layer fabric of the head pad 150 is made of cotton, hemp, or a blend of cotton/hemp and other materials, so as to have high comfort. Preferably, the fabric is a blended fabric of bamboo charcoal, cotton, hemp and terylene, which is specifically manufactured by blending 10-20 wt% (weight percentage) of bamboo charcoal fiber, 20-30 wt% of cotton fiber, 20-30 wt% of hemp fiber and 25-45 wt% of terylene (the preparation process of the blended fabric and the fabric can adopt a common method in the industry and is well known by a person skilled in the art), and is obtained by dipping in an antibacterial finishing liquid for 100 plus materials for 120 minutes at normal temperature. Specifically, bamboo vinegar is added into the formula of the antibacterial finishing liquid as an antibacterial active ingredient, the content of the bamboo vinegar is 80-85 wt% and the content of the softening agent is 15-20 wt%, the bamboo vinegar is a liquid which is obtained by collecting gas generated in the decomposition of bamboo at high temperature (100-120 ℃) in the process of burning the bamboo into charcoal and condensing and recycling the gas at normal temperature to obtain yellowish or yellowish-brown liquid, and the antibacterial finishing liquid has a good antibacterial effect and is low in cost; the softening agent can be Y-17238 softening agent, which can improve hand feeling and ensure wearing comfort of users.
In this embodiment, the filler of the head pad 150 can be selected from different Chinese medicinal materials and auxiliary materials according to the specific situation of the user. Preferably, the filler comprises semen Cassiae 40-50 Wt%, testa Fagopyri Esculenti 30-40 Wt%, folium Camelliae sinensis 10-20 Wt%, flos Chrysanthemi Indici 5-10 Wt% and Lavender 5-10 Wt%, wherein: the fructus aurantii and the buckwheat hulls are proper in hardness and can have a certain massage effect; the tea leaves, the wild chrysanthemum flowers and the lavender are slightly fragrant, so that the health-care tea has the effects of benefiting the body and preserving the health and is beneficial to promoting the sleep. Thus, after the head pad 150 provided with the padding is configured, the intelligent glasses 100 can improve the wearing comfort of the glasses body 110 and can also play a role in promoting sleep to a certain extent.
After the glasses body 110, the ear muffs 120, the massager 130, the controller 140 and the head pad 150 are installed in the above manner, the glasses body 110, the ear muffs 120 and the massager 130 are respectively and electrically connected with the controller 140 (wiring is not shown), so that the complete intelligent glasses 100 is obtained, and the following functions can be completed: the detection signal of the eye potential sensor on the lens body 110 is processed to output the sleeping state/quality of the user, and the user controls the ear muff 120 or the massager 130 to hypnotize when the user does not fall asleep or falls asleep, which will be described in detail below with reference to fig. 18 to 25.
Referring to fig. 19 to 25, there are shown functional structures of the smart glasses of the present invention, in which: FIG. 19 is a functional block diagram of smart glasses of the present invention; fig. 20 is a circuit diagram of the signal amplifying circuit in fig. 19; FIG. 21 is a circuit diagram of the analog to digital conversion circuit of FIG. 19; fig. 22 is a circuit diagram of the audio beat circuit of fig. 19; fig. 23 is a circuit diagram of the motor drive circuit of fig. 19; FIG. 24 is a circuit diagram of the data transfer circuit of FIG. 19; fig. 25 is a circuit diagram of the power supply circuit in fig. 19. The specific circuit of the functional structure of the smart glasses 100 is further described in detail below with reference to the accompanying drawings.
As shown in fig. 19, the controller 140 includes a control board 142 (not shown in fig. 19), and the functional circuits on the control board 142 include a signal amplification circuit 1221, an analog-to-digital conversion circuit 1222, a microprocessor (MCU, optional STM32L)1225, an audio beat circuit 1223, a motor drive circuit 1224, a data transmission circuit 1226, and a power supply circuit 1227, where the connection structure and signal transmission relationship of the functional circuit 122 are as follows.
The connection relationship of the circuit structure of the functional circuit 122 is: the eye potential sensor 111 (which may be a plurality of paths), the signal amplification circuit 1221, the analog-to-digital conversion circuit 1222, and the microprocessor 1225 are electrically connected in sequence, the microprocessor 1225 is also electrically connected to the audio beat circuit 1223, the motor driving circuit 1224, and the data transmission circuit 1226, the audio beat circuit 1223 is electrically connected to the speaker 121, the motor driving circuit 1224 is electrically connected to the micro-motor 131, and the power supply circuit 1227 supplies power to the signal amplification circuit 1121, the analog-to-digital conversion circuit 1222, the microprocessor 1225, the audio beat circuit 1223, the motor driving circuit 1224, and the data transmission circuit 1226. The signal transmission relationship of the functional circuit 122 is: the eye potential difference signal (optionally adding a filter circuit as required) during the eyeball movement detected and output by the eye potential sensor 111 is amplified by the signal amplifying circuit 1221, after the analog-to-digital conversion circuit 1222 is a digital signal, the microprocessor 1225 calculates the eye movement parameters such as the eye movement frequency and the change rate thereof, the eye movement amplitude and the change rate thereof, after obtaining the parameters, the sleep state/quality of the user is evaluated according to the preset sleep state/quality-eye movement parameter comparison table, the output evaluation result is sent to the external intelligent device 200 (such as a mobile phone, a tablet computer and other common products, which are not described in the scope of the present invention) by the data transmission circuit 1226, and when the user is not in the sleep state or in the light sleep state: the microprocessor 1225 outputs an audio control signal so that the audio beat circuit 1223 generates a beat sound, which is transmitted to the ear of the user through the speaker 121 for hypnosis; and/or, the microprocessor 1225 outputs a motor control signal, so that the motor driving circuit 1224 generates a motor driving signal to drive the micro motor 131, thereby driving the massage disk 132 to rotate, thereby enabling the massage head 133 on the massage disk 132 to massage the temples of the user for hypnosis.
It will be appreciated that the power supply circuit 1227 may be provided in the form of a battery + charging device, as would an electronic product such as a cell phone, wherein: the battery (group) is arranged on the control board 122, a plurality of batteries can be arranged in series, and different series connection positions are respectively connected with the lead wires so as to provide different output voltages to supply power for corresponding functional circuits; the charger is disposed outside the control board 122, and can charge the battery (pack) after being matched with the charging interface of the battery (pack). Thus, the signal amplification circuit 1121, the analog-to-digital conversion circuit 1222, the microprocessor 1225, the audio beat circuit 1223, the motor drive circuit 1224, and the data transmission circuit 1226 of the functional circuit 122 are powered by a battery (set), and the battery (set) may be charged by a charging device when the power of the battery (set) is insufficient. Since the main structure of the power supply circuit 1227 is separated from the rest of the functional circuit 122, the smart glasses 100 can be reduced in size.
In addition, the power supply circuit 1227 may also be divided into a plurality of units, so that each power supply unit individually supplies power to the signal amplification circuit 1121, the analog-to-digital conversion circuit 1222, the microprocessor 1225, the audio beat circuit 1223, the motor driving circuit 1224, and the data transmission circuit 1226, and will not be described again.
The general situation of the functional circuit of the smart glasses 100 of the present invention is explained above, and the main components of the functional circuit of the smart glasses 100 are further described below. These circuits all adopt relatively common elements, and can achieve relatively ideal performance through optimized design, so that the cost is greatly reduced, and the circuits are easy to popularize and use, so that the products have relatively good market prospects, and are described in detail below.
For convenience, the same element types in fig. 20 to 25 are denoted by the same letters. Note that the power supply voltages in fig. 19 to 25 are not identical (the operating voltages to which reference is made), and different reference numerals are used hereinafter.
As shown in fig. 20, the signal amplifier circuit 1221 is a dual-operational amplifier bootstrapped composite amplifier, which includes an operational amplifier a1 (optional LM747), an operational amplifier a2 (optional LM747) and resistors R1 to R4, a non-inverting input pin of the operational amplifier a1 is connected to an input terminal of the signal amplifier circuit (connected to the output terminal of the eye potential sensor 111), an inverting input pin of the operational amplifier a1 is connected to a non-inverting input terminal of the operational amplifier a2, an inverting input terminal of the operational amplifier a2 is connected to ground via a resistor R1, an output pin of the operational amplifier a1 is connected to an output terminal of the signal amplifier circuit (connected to one of the signal input terminals of the analog-to-digital converter circuit 1222) and an inverting input pin of the operational amplifier a1, an output pin of the operational amplifier a2 is connected to an output terminal of the signal amplifier circuit via a resistor R3 and an inverting input pin of the operational amplifier a2 via a resistor R2, an output terminal of the signal amplifier circuit is connected to ground via a resistor R4, a power supply, according to the common connection method of operational amplifier).
In this embodiment, the operational amplifiers a1 and a2 form a signal amplification circuit 1221 with low power supply and low power consumption, and the signal amplification circuit 1221 realizes that the load current is supplied from both the output terminals of the operational amplifiers, which may be half each. The signal amplification circuit 1221 does not need other external resistors or capacitors to compensate the frequency characteristics, and is convenient to use.
Of course, the signal amplifying circuit 1221 may employ a general circuit, such as a plurality of amplifying circuits formed by operational amplifiers, which are not described herein again.
As shown in fig. 21, the ADC circuit 1222 includes an ADC chip (optionally MAX1024 in the MAXIM family) that is configured to interface with the MCU of the microprocessor (optionally MC683 family such as MC683 XX). The ADC is a 10-bit serial ADC and has 8 analog inputs and one digital output. The specific circuit structure of the analog-to-digital conversion circuit 1222 is as follows: each channel of analog input pins CH 0-CH 7 of the analog-to-digital conversion chip ADC is connected with the analog-to-digital signal of the corresponding channel (namely the eye potential difference signal amplified by the signal amplifying circuit 1221), a reference voltage pin REF of the analog-to-digital conversion chip ADC is grounded through a capacitor C1, a reference calibration pin REFADDJ of the analog-to-digital conversion chip ADC is grounded through a capacitor C2, a chip selection input pin CS (low level effective) of the analog-to-digital conversion chip ADC is connected with an input/output end I/O of the microprocessor MCU, a serial clock input pin SCLK of the analog-to-digital conversion chip ADC is connected with a clock end CLK of the microprocessor MCU, a serial data input pin DIN of the analog-to-digital conversion chip ADC is connected with a main output slave input end MOSI of the microprocessor MCU, a serial data output pin DOUT of the analog-to-digital conversion chip ADC is connected with a MISO main input slave end of the microprocessor MCU, the negative potential pin VSS of the analog-to-digital conversion chip ADC is grounded, the positive potential pin VL of the analog-to-digital conversion chip ADC is connected with the positive power supply terminal VDD of the microprocessor MCU, the positive power supply terminal VDD of the microprocessor MCU is connected with the positive power supply terminal VL (+3V) of the microprocessor MCU, a capacitor C3 is connected between the positive high potential pin VDD of the analog-to-digital conversion chip ADC and the ground, and a capacitor C4 is connected between the power supply terminal VDD of the microprocessor MCU and the ground. The CS low level in the ADC of the analog-to-digital conversion chip is effective, and only when the end is set to be low, data can be synchronously input (DIN) or output (DOUT): when CS is low, the data on DIN is input into the chip at the rising edge of SCLK; when CS is low, the data on DOUT is output at the falling edge of SCLK; when high, DOUT is in a high impedance state. SSTRB is a serial trigger output pin: in the internal clock mode, a rising edge transition of the SSTRB indicates that the transition is complete; in the external clock mode, SSTRB is always low. The SHDN is a turn-off control pin, the low level of which is effective, and a corresponding turn-off control signal can be accessed.
The analog-to-digital conversion circuit 1222 adopts a low power consumption serial a/D converter, which has fewer components, smaller volume, and wider operating voltage range (2.7V to 5.25V). The analog-to-digital conversion circuit 1222 can convert the analog signal into a digital signal after receiving a certain path of amplified eye potential difference signal, so as to provide the digital signal for the microprocessor MCU to perform subsequent processing.
Of course, the analog-to-digital conversion circuit may also adopt other structural circuits, such as a circuit formed by the ADC0809 and peripheral components thereof, and details are not described again.
As shown in fig. 22, the audio beat circuit 1223 may generate a deep audio beat sound. The audio frequency beat circuit 1223 comprises a unijunction N-channel transistor T1 (with the type selected as BT33) and an NPN type triode T2 (with the type selected as 3DG6), wherein the first base of the unijunction N-channel transistor T1 is grounded through a resistor R5, the second base of the unijunction N-channel transistor T1 is connected with the positive end VC (+3V) of an audio frequency beat circuit power supply through a resistor R7, a capacitor C5 is connected between the emitter of the unijunction N-channel transistor T1 and the ground, a resistor R6 and a potentiometer RW which are connected in series are connected between the emitter of the unijunction N-channel transistor T1 and the positive end VC of the audio frequency beat circuit power supply, the base of the NPN type triode T2 is connected with the first base of the unijunction N-channel transistor T1 through a resistor R8, the collector of the NPN type triode T2 is connected with the positive end VC of the audio frequency beat circuit power supply through a resistor R; the speaker 132 is connected between the positive terminal VC of the power supply of the audio beat circuit and the ground, and the positive terminal VC of the power supply of the audio beat circuit is turned on/off by a switch K1 (an optional switch tube, such as a triode or a product effect tube) or the like controlled by the microprocessor MCU, that is, the power supply of the circuit is turned on when the audio control signal generated by the microprocessor MCU is "1", and the power supply of the circuit is turned off when the audio control signal K/a is "0".
In the audio beat circuit 1223, a signal pulse generated by the unijunction N-channel transistor T1 is amplified by the NPN transistor T2 and then output through the speaker 132, so that a deep beat sound is emitted, thereby realizing hypnosis for a human. In particular, a potentiometer RW is connected between a first base of the unijunction N-channel transistor T1 and the resistor R6, and a moving contact of the potentiometer RW is connected to a fixed connection of the potentiometer RW; the pulse frequency (two beats can be separated by 1-3 seconds) can be changed by adjusting the potentiometer RW to meet the requirements of different people.
The audio beat circuit 1223 may also be replaced by an audio integrated block, or even replaced by MP3, and the like, which is not described in detail.
As shown in fig. 24, the motor driver circuit 1224 is a bridge circuit including two PNP transistors and two nand gates (optional CD 40107). The specific circuit structure is as follows: the base of the triode T3 is connected to the first input terminal of the nand gate NA1 through a resistor R10, the emitter of the triode T3 is connected to the positive terminal VD (+12V) of the motor driving circuit power supply, the collector of the triode T3 is connected to the output terminal of the nand gate NA1 and the first input terminal of the nand gate NA2 at the same time, the base of the triode T4 is connected to the first input terminal of the nand gate NA2 through a resistor R11, the emitter of the triode T4 is connected to the positive terminal VD of the motor driving circuit power supply, the collector of the triode T4 is connected to the output terminal of the nand gate NA2 and the first input terminal of the nand gate NA1 at the same time, two driving signals M1 and M2 output by the microprocessor MCU are connected to the second input terminal of the nand gate NA1 and the second input terminal of the nand gate NA2, and two driving terminals of the dc voltage driven.
The motor driving circuit 1224 is suitable for driving and controlling a 12V dc micro motor, and its logic circuit mainly comprises two nand gates and two triodes. Two NAND gates in the circuit form a bridge circuit, two triodes are used as loads of a NAND gate buffer to drive a reversible 12V direct current micro motor to operate, and the following table 1 is a truth table of the driving end of the micro motor.
Table 1 truth table of input terminal of driving circuit of micro motor
M1 M2 Motor running state
0 0 Closing device
0 1 Clockwise
1 0 Counter clockwise
1 1 Initial state
As can be seen from table 1 above, the micro motor 131 can rotate forward or backward according to the state of the motor driving signal of the microprocessor MCU. After the micro motor 131 is operated, the massage disc 132 can be driven to rotate, so that the massage heads 133 on the massage disc 132 massage the temples of the user for hypnosis.
The motor driving circuit 1224 may also be built as a discrete component, or may be built using a motor driving chip (e.g., MC33035) and peripheral components, which will not be described herein.
As shown in fig. 24, the data transfer circuit 1226 includes a transmit chip SEND IC (optionally MICRF102) which contains a synthesizer, a voltage controlled oscillator, a power amplifier, and the like. The specific structure of the data transfer circuit 1226 is: the power control input Pin (PC)1 of the transmitting chip SEND IC is connected with a positive power supply end VS (+5V) of a data transmission circuit through a resistor R12, a power supply pin (VDD)2 of the transmitting chip SEND IC is connected with the positive power supply end VS of the data transmission circuit, a grounding pin (VSS)3 of the transmitting chip SEND IC is grounded, a reference oscillation pin (REFOSC)4 of the transmitting chip SEND IC is grounded through a crystal oscillator X, a standby mode control pin (STBY)5 of the transmitting chip SEND IC is connected with a transmitting/standby power supply (wherein VDD is connected in a transmitting mode, VSS is connected in a standby mode), a printed antenna ANT is connected between a power transmitting high pin (ANTP)6 and a power transmitting low pin (ANTM)7 of the transmitting chip SEND IC, and a data input pin (ASK)8 of the transmitting chip SEND IC receives input data (the data comes from a data output end of a microprocessor MCU). In addition, a resistor R13 and a capacitor C9 which are connected in parallel are connected between a power control input pin 1 of the transmitting chip SENDIC and the ground, and a capacitor C6, a capacitor C7 and a capacitor C8 which are connected in parallel are connected between a power pin 2 and a ground pin 3 of the transmitting chip SENDIC, so that power supply ripples are eliminated.
In the data transfer circuit 1226, the received data is processed by the transmitting chip SEND IC and then transmitted through the printed antenna ANT, so that the smart device 200 can know the sleep state and quality of the user for taking subsequent measures. The data transmission circuit 1226 has a small volume and a high anti-interference capability, and can realize wireless auto-tuning.
The data transfer circuit 1226 may be replaced by bluetooth, SIM card, or the like, so as to receive and transmit data wirelessly, which is not described again.
As shown in fig. 25, the power supply circuit 1227 is composed of a power adapter 1227-1 and a battery charging circuit 1227-2, in which the power adapter 1227-1 is an alternating current/direct current (AC/DC) conversion circuit, and can convert 220V alternating current of the commercial power into 5/12V direct current for output, and then the battery charging circuit 1227-2 charges the rechargeable battery (pack) BT with the direct current. The battery (pack) BT, which is preferably a nickel cadmium battery, can draw multiple outputs (Vo1, Vo2, … …, Von) to meet the power supply requirements of the signal amplification circuit 1221, the analog-to-digital conversion circuit 1222, the Microprocessor (MCU)1225, the audio beat circuit 1223, the motor drive circuit 1224, and the data transmission circuit 1226 in the functional circuit 122. It is understood that the power adapter 1227-1 and the battery charging circuit 1227-2 may adopt various circuit configurations, and the following is a preferred circuit configuration with a simple configuration.
As shown in fig. 25, the power adapter 1227-1 is a switching-mode regulated power supply, and the power adapter 1227-1 includes components such as a high-frequency transformer, a power tube, a high-input linear regulator WDS (may be LR6), and a pulse width modulator PWM IC (may be MAX5069), and its specific circuit structure is: an input pin Vin of a high-input linear voltage stabilizer WDS is connected with a first commercial power end, an output pin Vout of the high-input linear voltage stabilizer WDS is connected with an input pin of a pulse width modulator, a ground pin GND of the high-input linear voltage stabilizer WDS and a ground pin of a pulse width modulator PWM IC are respectively connected with a second commercial power end, a control pin of the pulse width modulator PWM IC is connected with a grid electrode of a power tube (MOSFET) Qs, a source electrode of the power tube Qs is connected with the second commercial power end through a resistor R14, a primary side L1 of a high-frequency transformer is connected between a drain electrode of the power tube Qs and the first commercial power end, a capacitor C6 is connected between the input pin Vin of the high-input linear voltage stabilizer WDS and the second commercial power end, and a capacitor C7 is connected between the output pin Vout of the high-input linear voltage stabilizer WDS; a first end of a first secondary side L2 of the high-frequency transformer is connected with an output positive end P1 of the power adapter 1227-1 (connected with an input positive end of the battery charging circuit 1227-2) through a rectifier diode D1, a second end of a first secondary side L2 of the high-frequency transformer is connected with an output ground end P2 of the power adapter 1227-1 (connected with an input ground end of the battery charging circuit 1227-2), and a capacitor C8 is connected between the output positive end P1 of the power adapter 1227-1 and the output ground end P2; the diode D2 and the diode D3 are connected in series between the first end of the second secondary side L3 of the high-frequency transformer and the power pin of the pulse width modulator PWM IC, the second end of the second secondary side L3 of the high-frequency transformer is connected with the second commercial power end, and the capacitor C9 is connected between the second end of the second secondary side L3 of the high-frequency transformer and the node of the diode D2 and the diode D3.
The power adapter 1227-1 can convert commercial power (220V AC power) into 5V/12V DC power, wherein a high-input linear regulator WDS is used as an auxiliary power supply for the power adapter 1227-1, and a pulse width modulator PWM IC is supplied with a start-up voltage from the high-input linear regulator WDS. The starting working voltage of the pulse width modulator PWM IC is provided by an auxiliary power supply high input linear voltage stabilizer WDS, and is provided by the voltage rectified by the secondary side of the high frequency transformer after starting, and when the voltage is higher than the output voltage of the high input linear voltage stabilizer WDS, the high input linear voltage stabilizer WDS is closed.
As shown in fig. 25, the battery charging circuit 1227-2 includes a PNP transistor T5, an NPN transistor T6, a diode D4, a diode D5, a resistor R15, a resistor R16, and a light emitting diode D6, and the specific circuit structure is: an emitter of the triode T5 is connected with an input positive terminal P1 of the battery charging circuit (connected with an output positive terminal of the power adapter 1227-1, 5V-12V), a base of the triode T5 is connected with a cathode of the diode D5, an anode of the diode D5 is connected with a cathode of the diode D4, an anode of the diode D4 is connected with the input positive terminal P1 of the battery charging circuit, a collector of the triode T5 is connected with an anode of the light-emitting diode D6, a cathode of the light-emitting diode D6 is connected with a charging interface A, and the battery (battery pack) BT is positioned between the charging interface A and an input ground terminal of the battery charging circuit (connected with an output ground terminal of the power adapter 1227-1, 0V) for charging; the collector of the triode T6 is connected with the base of the triode T5 through the resistor R16, the emitter of the triode T6 is connected with the input ground end of the battery charging circuit, and the resistor R15 is connected between the base of the triode T6 and the charging interface A.
In the battery charging circuit of the embodiment, the diodes D4 and D5, the resistors R15 and R16 and the transistor T5 form a charging part, and the transistor T6 and the resistor R15 form a charging protection part. When the residual voltage of the battery is lower than a preset threshold (such as 0.6V), the triode T6 is conducted, the triode T5 is also conducted, the current charges the battery through the resistor R15 and the triode T5, and the light-emitting diode D6 is bright to indicate that the charging is normal. If the polarity of the battery is connected reversely, the base electrode of the triode T6 is at a negative potential, the triode T6 is cut off, the base electrode potential of the triode T5 is raised, the triode T5 is turned off, therefore, the battery cannot be charged, and at the moment, the light-emitting diode is not lighted, which indicates that the polarity of the battery is connected reversely. This helps prevent the polarity of the charging circuit 1227-2 from being reversed, thereby providing better protection.
In addition, the power supply circuit can be directly realized by the structure of a general transformer, a rectifier bridge, a filter circuit and an RC charging circuit, and the description is omitted.
Fig. 20 to fig. 25 show an implementation circuit of the signal amplifying circuit 1221, the analog-to-digital conversion circuit 1222, the audio beat circuit 1223, the motor driving circuit 1224, the data transmission circuit 1226, and the power supply circuit 1227 in the functional circuit 122, respectively. It is understood that, when those skilled in the art integrate these circuits together, some peripheral circuit elements may be added to optimize the overall performance of the functional circuit 122, and this part of the common general knowledge will not be elaborated herein.
The physical structure and the functional structure of the intelligent glasses are described in detail, the product can monitor the sleep state and the quality accurately, and has the function of effectively promoting sleep, the product is compact in structure, good in wearing comfort, low in price, easy to popularize and good in market prospect.
The controller in the smart glasses described above relates to a sleep state/quality assessment control process, namely: the eye potential difference signal of eyeball movement is detected and output by a three-point eye potential sensor, and then the relevant eye movement parameter is calculated and analyzed according to the eye potential difference signal, thereby comparing with a relation chart (table) of sleep state/quality-eye movement parameter, and estimating the sleep state/quality of the user.
It should be emphasized that the sleep state/quality evaluation of the controller in the smart glasses of the present invention may also be performed in other ways, and the sleep state/quality evaluation method described above is not the only choice for the controller. To some extent, the controller and control method of the smart glasses of the present invention may exist independently, as long as sleep state/quality assessment can be achieved.
Indeed, other sleep state/quality assessment methods exist in the prior art. For example, after detecting the electro-ocular signals, the electro-ocular signals are further digitized, and then the related electro-ocular parameters are directly extracted by a conventional numerical analysis method, and then the sleep state/quality of the user is evaluated according to the electro-ocular parameters, the basic process of which is described below.
The method comprises the steps of firstly collecting an eye electric signal of a user, wherein the sampling rate of the eye electric signal is 100Hz, carrying out 0.1-30 Hz band-pass filtering on the eye electric signal, and selecting a zero-phase-shift finite impulse response filter as a filter.
Performing sleep feature extraction on the filtered eye electric signal, wherein the features to be extracted can comprise time domain features, frequency domain features and nonlinear features; specifically, the filtered electro-ocular signals are divided into 30S frames of signal segments, and then time domain, frequency domain and nonlinear analysis are respectively carried out on the electro-ocular signals, so as to extract the required sleep characteristics. The time domain characteristics comprise amplitude values, first-order to fourth-order statistical values and quartiles; the frequency domain features include fast eye movement band energy; the nonlinear characteristics comprise approximate entropy and spectral entropy, and a specific calculation formula can be referred to the existing literature.
And (4) carrying out double selection on the optimal feature subset by combining a Fisher scoring method and a sequence advancing method, and reducing feature dimensions. Firstly, selecting the features with Fisher score larger than 0.2, and then selecting the feature subset with the highest accuracy as a feature vector to be input into a classifier by using a sequence advancing method.
After feature selection, the feature is identified by using a support vector machine, and automatic sleep staging is carried out. Specifically, the features obtained after feature selection are used as feature vectors to be input into a support vector machine for identification, and sleep stages are divided, such as: waking period, NREM1 period, NREM2 period, NREM3 period, REM period, etc., so that the sleep state/quality of the user is obtained.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.

Claims (4)

1. An intelligent glasses is characterized by comprising a glasses body, earmuffs, a massager, a controller and a headrest, wherein the earmuffs, the massager, the controller and the headrest are mounted on the glasses body, an eye potential sensor and the controller are mounted on a glasses frame on the glasses body, the earmuffs, the massager and the headrest are mounted on glasses legs on the glasses body, the earmuffs are provided with speakers, the massager is provided with a massage disk driven by a micro motor, the massage disk is distributed with massage heads made of a plurality of soft materials, and the headrest is filled with traditional Chinese medicinal materials and auxiliary materials to promote a user to sleep; the controller comprises a control panel, a functional circuit of the control panel is provided with a signal amplification circuit, an analog-to-digital conversion circuit, a microprocessor, an audio beat circuit, a motor driving circuit, a data transmission circuit and a power supply circuit, the eye potential sensor, the signal amplification circuit, the analog-to-digital conversion circuit and the microprocessor are sequentially and electrically connected, the microprocessor is simultaneously and electrically connected with the audio beat circuit, the motor driving circuit and the data transmission circuit, the audio beat circuit is electrically connected with the loudspeaker, the motor driving circuit is electrically connected with the micro motor, and the power supply circuit provides corresponding power supplies for the signal amplification circuit, the digital-to-analog conversion circuit, the microprocessor, the audio beat circuit, the motor driving circuit and the data transmission circuit; the eye potential difference signal when the eyeball moves detected and output by the eye potential sensor is amplified by the signal amplifying circuit and converted by the analog-to-digital conversion circuit, the microprocessor draws an eye electrical signal waveform diagram on a time-amplitude coordinate system, establishes a detection window moving along the time axis direction on the time-amplitude coordinate system, moves the detection window along the time axis direction within a set time to detect eye electrical pulses in the eye electrical signal waveform diagram in the time-amplitude coordinate system, and then performs numerical calculation according to the recorded eye electrical pulse generation time, eye electrical pulse amplitude and eye electrical pulse direction to obtain the eye movement frequency and change rate of the user, the eye movement amplitude and change rate of the user so as to evaluate the sleep state and quality of the user according to a preset sleep state/quality-eye movement parameter comparison table, the sleep state is one of an un-sleep state, a light sleep state, a deep sleep state and a rapid eye movement sleep state, the sleep quality is one of good, medium and poor, and the output evaluation result is sent to the external intelligent equipment by the data transmission circuit; judging whether the sleeping state is a non-sleeping state or a light sleeping state according to the evaluation result; when the user does not fall asleep or lightly sleeps, the microprocessor outputs an audio control signal to control the audio beat circuit to generate beat sound, and the beat sound is transmitted to the ear of the user through the loudspeaker to realize hypnosis; the microprocessor outputs a motor control signal to control the motor driving circuit to generate a motor driving signal to drive the micro motor to rotate so as to drive the massage disc, so that the massage heads on the massage disc massage the temples of the user for hypnosis; otherwise, resetting each hypnosis control signal to terminate hypnosis, wherein:
the ocular signal detection includes: drawing an electro-oculogram waveform diagram on a time-amplitude coordinate system according to the detected electro-oculogram, dividing the electro-oculogram waveform diagram into multiple frames for analysis, judging whether the user is in an awake state or a sleep state by detecting the quantity of electro-oculogram in each frame, and further judging the sleep state/stage of the user in the sleep state; establishing a detection window moving along the time axis direction on a time-amplitude coordinate system, wherein the length and the height threshold of the detection window are comprehensively determined according to the blink speed and the eye electrical signal amplitude thereof in the waking state, the eye movement speed and the eye electrical signal amplitude thereof in the sleeping state of a user which are measured and counted in advance; within a set time, moving the detection window in the time axis direction to detect the electric eye pulse in the electric eye signal waveform diagram in the time-amplitude coordinate system: if the fluctuation amplitude of the waveform amplitude of the electro-ocular signal waveform in the detection window exceeds the set detection window height threshold, judging that an electro-ocular pulse is detected, and counting the number of eye movements; otherwise, counting the eye movement times;
the sleep state assessment comprises: judging whether the eye movement frequency in the current period is larger than an eye movement frequency threshold value in the non-sleep state or not, judging whether the eye movement amplitude of each time is close to a preset eye movement amplitude value in the non-sleep state or not, if so, judging that the user is in the non-sleep state, and otherwise, judging that the user enters the sleep state; under the condition that a user enters a sleep state, judging whether the user is in non-rapid eye movement sleep or rapid eye movement sleep, judging whether the eye movement frequency in the current period of the condition bit is greater than the eye movement frequency threshold value of the rapid eye movement sleep state, if so, judging that the user enters the rapid eye movement sleep state, otherwise, judging that the user is in the non-rapid eye movement sleep state; judging whether the eye movement state is a light sleep state or a deep sleep state under the non-rapid eye movement sleep state, wherein the judgment condition is that whether the change rate of the eye movement frequency in the current period is smaller than the change rate threshold of the eye movement frequency in the deep sleep state, and whether the change rate of the eye movement amplitude in the current period is smaller than the change rate threshold of the eye movement amplitude in the deep sleep state, if so, judging that the user enters the deep sleep state, otherwise, judging that the user is in the light sleep state;
the sleep quality assessment comprises the following steps: counting the duration of each sleep state, the eye movement frequency and the change rate thereof, and the eye movement amplitude and the change rate thereof in each sleep state duration time period to obtain a statistic value set of the characteristic parameters to be compared; comparing each element in the statistical value set of the characteristic parameters to be compared with each element in the standard value set of the corresponding characteristic parameters in the sleep state/quality-eye movement parameter comparison table one by one to obtain a deviation value set between the corresponding characteristic parameter elements; calculating a sleep quality score/grade according to a preset sleep quality evaluation strategy;
hypnosis includes: obtaining a sleep state evaluation result of a user; judging whether the sleep state is a non-sleep state or a light sleep state, if so, needing hypnosis under the non-sleep state or the light sleep state; outputting audio control signals for audio hypnosis and outputting motor control signals for hypnosis and massage; after hypnosis, if the user enters a deep sleep state, resetting the audio control signal and the motor control signal so as to stop hypnosis;
the signal amplification circuit comprises an operational amplifier A1 and an operational amplifier A2, wherein a non-inverting input pin of the operational amplifier A1 is connected with an input end of the signal amplification circuit, an inverting input pin of the operational amplifier A1 is connected with a non-inverting input end of the operational amplifier A2, an inverting input end of the operational amplifier A2 is grounded through a resistor R1, an output pin of the operational amplifier A1 is connected with an output end of the signal amplification circuit and an inverting input pin of the operational amplifier A1, an output pin of the operational amplifier A2 is connected with an output end of the signal amplification circuit through a resistor R3 and an inverting input pin of the operational amplifier A2 through a resistor R2, and an output end of the signal amplification circuit is grounded through a;
the digital-to-analog conversion circuit comprises a digital-to-analog conversion chip, each analog input pin of the digital-to-analog conversion chip is connected with a digital-to-analog signal of a corresponding channel, a reference voltage pin of the digital-to-analog conversion chip is grounded through a capacitor C1, a reference calibration pin of the digital-to-analog conversion chip is grounded through a capacitor C2, a chip selection pin of the digital-to-analog conversion chip is connected with the input end and the output end of a microprocessor, a serial clock pin of the digital-to-analog conversion chip is connected with a clock end of the microprocessor, a serial input pin of the digital-to-analog conversion chip is connected with the main output slave input end of the microprocessor, a serial output pin of the digital-to-analog conversion chip is connected with the main input slave output end of the microprocessor, a high-potential positive pin of the digital-to-analog conversion chip is connected with a power supply positive, a capacitor C3 is connected between the high-potential positive pin of the digital-to-analog conversion chip and the ground, and a capacitor C4 is connected between the power supply end of the microprocessor and the ground;
the audio beat circuit includes a unijunction N-channel transistor T1 and an NPN transistor T2, wherein: a first base electrode of the transistor T1 is grounded through a resistor R5, a second base electrode of the transistor T1 is connected with a positive end of a power supply of the audio frequency beat circuit through a resistor R7, a capacitor C5 is connected between an emitter electrode of the transistor T1 and the ground, a resistor R6 and a potentiometer RW which are connected in series are connected between the emitter electrode of the transistor T1 and the positive end of the power supply of the audio frequency beat circuit, a base electrode of the triode T2 is connected with a first base electrode of the transistor T1 through a resistor R8, a collector electrode of the triode T2 is connected with the positive end of the power supply of the audio frequency beat circuit through a resistor R9, and an emitter; the loudspeaker is connected between the positive end of the power supply of the audio frequency beat circuit and the ground, and the positive end of the power supply of the audio frequency beat circuit is switched on/off by a switch controlled by the microprocessor;
the motor driving circuit comprises a PNP type triode T3, a PNP type triode T4, a NAND gate NA1 and a NAND gate NA2, wherein: the base of a triode T3 is connected with the first input end of a NAND gate NA1 through a resistor R10, the emitter of a triode T3 is connected with the positive end of a motor driving circuit power supply, the collector of a triode T3 is simultaneously connected with the output end of a NAND gate NA1 and the first input end of a NAND gate NA2, the base of a triode T4 is connected with the first input end of a NAND gate NA2 through a resistor R11, the emitter of a triode T4 is connected with the positive end of a motor driving circuit power supply, the collector of a triode T4 is simultaneously connected with the output end of a NAND gate NA2 and the first input end of a NAND gate NA1, two driving signals M1 and M2 output by a microprocessor are respectively connected with the second input end of a NAND gate NA1 and the second input end of a NAND gate NA2, and two driving ends of a NAND gate NA;
the data transmission circuit comprises a transmitting chip, a power control input pin of the transmitting chip is connected with a positive end of a power supply of the data transmission circuit through a resistor R12, a power supply pin of the transmitting chip is connected with the positive end of the power supply of the data transmission circuit, a grounding pin of the transmitting chip is grounded, a reference oscillation pin of the transmitting chip is grounded through a crystal oscillator, a standby mode control pin of the transmitting chip is connected with a transmitting/standby power supply, a printed antenna is connected between a power transmitting high pin and a power transmitting low pin of the transmitting chip, the data input pin of the transmitting chip receives input data, a resistor R13 and a capacitor C9 which are connected in parallel are connected between the power control input pin of the transmitting chip and the ground, and a capacitor C6, a capacitor C7 and a capacitor C8 which are connected in parallel are connected;
the power supply circuit comprises power adapter and battery charging circuit, wherein: the power adapter comprises a high-frequency transformer, a power tube, a high-input linear voltage stabilizer and a pulse width modulator, wherein an input pin of the high-input linear voltage stabilizer is connected with a first mains supply end, an output pin of the high-input linear voltage stabilizer is connected with an input pin of the pulse width modulator, a grounding pin of the high-input linear voltage stabilizer and a grounding pin of the pulse width modulator are respectively connected with a second mains supply end, a control pin of the pulse width modulator is connected with a grid electrode of a power tube Qs, a source electrode of the power tube Qs is connected with the second mains supply end through a resistor R14, a high-frequency transformer L1 is connected between a drain electrode of the power tube Qs and the first mains supply end, a capacitor C6 is connected between the input pin of the high-input linear voltage stabilizer and the second mains supply end, and a capacitor C7 is connected between the output pin of the high-input linear; a first end of a first secondary side L2 of the high-frequency transformer is connected with an output positive end of the power adapter through a rectifying diode D1, a second end of a first secondary side L2 of the high-frequency transformer A3 is connected with an output ground end P2 of the power adapter, and a capacitor C8 is connected between the output positive end and the output ground end of the power adapter; a diode D2 and a diode D3 are connected in series between the first end of the second secondary side L3 of the high-frequency transformer and a power supply pin of the pulse width modulator, the second end of the second secondary side L3 of the high-frequency transformer is connected with a second commercial power end, and a capacitor C9 is connected between the second end of the second secondary side L3 of the high-frequency transformer and a node of a diode D2 and a diode D3; the battery charging circuit comprises a PNP type triode T5, an NPN type triode T6, a diode D4, a diode D5, a resistor R15, a resistor R16 and a light-emitting diode D6, wherein an emitter of the triode T5 is connected with the output positive end of the power adapter, a base of the triode T5 is connected with a cathode of a diode D5, an anode of the diode D5 is connected with a cathode of a diode D4, an anode of the diode D4 is connected with the output positive end of the power adapter, a collector of the triode T5 is connected with an anode of the light-emitting diode D6, a cathode of the light-emitting diode D6 is connected with a charging interface, and the battery is positioned between the charging interface and the output ground end of the power; the collector of the triode T6 is connected with the base of the triode T5 through the resistor R16, the emitter of the triode T6 is connected with the output ground end of the power adapter, and the resistor R15 is connected between the base of the triode T6 and the charging interface.
2. The intelligent glasses according to claim 1, wherein a three-point eye potential sensor is arranged near the nose support part of the glasses frame, a controller shell is installed on a controller base between two glasses rings of the glasses frame, massager through holes for installing massagers are formed in the front parts of the glasses legs, earmuff through holes for installing earmuffs are formed in the rear parts of the glasses legs, and U-shaped head cushions are attached to the inner sides of the glasses legs; the inner side of the cover body is bonded to the outer side of an eyeshade through hole of the glasses leg, and the gasket covers the ear of a user after penetrating through the eyeshade through hole; the massager comprises a massage frame, the outer diameter of the massage disc is smaller than that of the massage frame, the micro motor and the massage disc are axially positioned and supported on the massage frame, a rotating shaft of the massage disc is in transmission connection with a power output shaft of the micro motor, the inner side surface of the massage frame is adhered to the outer side of the massager through hole of the glasses leg, and the massage head is attached to the position of the temple of a user after the massage disc penetrates through the massager through hole; the bottom surface of the controller shell is bonded with the controller base, and the control panel is arranged in the controller shell; the headrest is attached to the inner side of the temples with glue, and is divided into a plurality of headrest units by sewing threads, wherein each headrest unit is filled with a sleep-promoting filler.
3. The intelligent glasses according to claim 2, wherein the double-layer fabric of the head pad is made of 10-20 wt% of bamboo charcoal fiber, 20-30 wt% of cotton fiber, 20-30 wt% of hemp fiber and 25-45 wt% of polyester fiber by blending, and is obtained by immersing the double-layer fabric in an antibacterial finishing liquid for 120 minutes at normal temperature, wherein the antibacterial finishing liquid comprises 80-85 wt% of bamboo vinegar liquid and 15-20 wt% of a softening agent.
4. The smart eyewear of claim 3 wherein the padding of the head pad consists of cassia seed 40-50 Wt%, buckwheat hull 30-40 Wt%, tea leaf 10-20 Wt%, wild chrysanthemum flower 5-10 Wt%, and lavender 5-10 Wt%.
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CN109044280B (en) * 2018-08-20 2021-12-17 深圳和而泰数据资源与云技术有限公司 Sleep staging method and related equipment
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