Sleep mask simulating high altitude environment

Abstract

The application provides a sleep mask for simulating a plateau environment, comprising a mask body, a mounting seat arranged on the mask body, a total air passage arranged on the mounting seat and being in communication with the outside world, and a flow resistance adjusting mechanism for adjusting the flow resistance of breathing air in the total air passage, wherein the flow resistance adjusting mechanism comprises a ventilation port arranged on an end wall of the total air passage and a flow resistance adjusting piece for adjusting the size of the ventilation port. The sleep mask for simulating a plateau environment can be used for simulating the sleep of a person in a plateau area at different altitudes. The sleep mask for simulating a plateau environment can adjust the opening of the ventilation port by the flow resistance adjusting piece during sleep, adjust the air amount entering the total air passage per unit time, and further adjust the total oxygen content inhaled by the person in each breathing cycle, so as to achieve the technical purpose of simulating the sleep in a plateau area at different altitudes in a normal altitude area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of masks, in particular to a sleep mask for simulating highland environment. BACKGROUND

[0002] Due to different oxygen content of air in highland areas at different altitudes, the different oxygen content will have different effects on the sleep of people in highland areas at different altitudes. Therefore, in view of the above situation, the relevant technology carries out the sleep research of people in highland areas at different altitudes. However, in the prior art, there is a lack of devices for simulating the sleep of people in highland areas at different altitudes.

[0003] Therefore, there is an urgent need for a sleep mask for simulating highland environment which can solve the above problems. SUMMARY

[0004] The present application provides a sleep mask for simulating highland environment, which can be used to simulate the sleep of people in highland areas at different altitudes.

[0005] The present application provides a sleep mask for simulating highland environment, comprising a mask body, a mounting seat is arranged on the mask body, a total airway is arranged on the mounting seat, and the total airway is in communication with the outside;

[0006] Further comprising a flow resistance adjusting mechanism for adjusting the flow resistance of the respiratory airflow in the total airway, the flow resistance adjusting mechanism comprises a ventilation port and a flow resistance adjusting piece, the ventilation port is located on the end wall of the total airway, and the flow resistance adjusting piece is used to adjust the size of the ventilation port.

[0007] According to the sleep mask for simulating highland environment provided by the present application, the ventilation port comprises a plurality of sub-ventilation ports arranged in an annular array on the end wall of the total airway, the flow resistance adjusting piece is coaxially arranged with the ventilation port, and the flow resistance adjusting piece is rotationally matched with the end wall of the total airway.

[0008] A plurality of shielding pieces for adjusting the size of the sub-ventilation ports are arranged in an annular array on the flow resistance adjusting piece.

[0009] According to the sleep mask for simulating highland environment provided by the present application, a plurality of shielding pieces corresponding to the number of sub-ventilation ports are arranged in an annular array on the flow resistance adjusting piece, and all the shielding pieces can completely shield or completely open all the corresponding sub-ventilation ports.

[0010] According to the sleep mask for simulating highland environment provided by the present application, further comprising a driving mechanism for driving the rotation of the flow resistance adjusting piece, the driving mechanism comprises a driving motor, a driving gear is arranged on the output shaft of the driving motor, and a driven gear tooth is arranged on the outer periphery of the flow resistance adjusting piece and in transmission connection with the driving gear.

[0011] The sleep mask simulating a high-altitude environment provided by the present invention further includes a position detection sensing device for detecting the position of the flow resistance adjustment element, the position detection sensing device being communicatively connected to the drive motor.

[0012] The sleep mask simulating a high-altitude environment according to the present invention further includes an upper cover, the upper cover being located on the mounting base, and the position detection sensor being mounted on the upper cover;

[0013] The top cover is provided with ventilation holes for air circulation.

[0014] According to the sleep mask for simulating a high-altitude environment provided by the present invention, the mounting base is provided with a first airway and a second airway, the first airway and the second airway are connected to the main airway, and the first airway and the second airway are respectively provided with flow sensors for detecting expiratory flow rate and inspiratory flow rate.

[0015] According to the sleep mask for simulating a high-altitude environment provided by the present invention, the flow sensor includes a base and an end cap arranged coaxially, a sealed inner cavity is formed between the inner wall of the base and the inner wall of the end cap, the base has an air inlet end, the end cap has an air outlet end, and the air inlet end is provided with a plurality of vortex air inlet channels in a ring array, the vortex air inlet channels being connected to the sealed inner cavity.

[0016] The sealed inner cavity is provided with a rotating shaft, the two ends of which are rotatably engaged with the base and the end cover respectively, and the rotating shaft is provided with flat fan blades;

[0017] The planar fan blades are provided with light-emitting elements and photosensitive elements on both sides, and an optical transmission channel is formed between the light-emitting elements and the photosensitive elements.

[0018] According to the sleep mask for simulating a high-altitude environment provided by the present invention, the air outlet is provided with an air film, the air film can seal the air outlet, and when airflow flows out from the air outlet, the air film can deform along the airflow direction;

[0019] The flow sensor located in the first airway and the flow sensor located in the second airway face opposite directions.

[0020] The sleep mask simulating a high-altitude environment provided by the present invention further includes a first magnet and a second magnet. The first magnet and the second magnet are coaxially arranged with the air film and are respectively located on both sides of the air film. The second magnet is fixedly arranged on the end cap.

[0021] According to the present invention, a sleep mask simulating a high-altitude environment is provided, wherein the mask body is provided with a fitting part for fitting the face.

[0022] The sleep mask provided by this invention, which simulates a high-altitude environment, allows for adjustment of the vent opening during sleep via a flow resistance adjuster. This adjusts the amount of air entering the total airway per unit time, thereby regulating the total oxygen content inhaled by the person in each respiratory cycle. This achieves the technical objective of simulating sleep in high-altitude regions at different altitudes while maintaining normal altitude. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is an exploded schematic diagram of the flow sensor in the sleep mask simulating a high-altitude environment provided by the present invention;

[0025] Figure 2 This is a schematic diagram of the base of the flow sensor in the sleep mask that simulates a high-altitude environment provided by the present invention;

[0026] Figure 3 This is a schematic diagram showing the positions of the light-emitting element and the photosensitive element of the flow sensor in the sleep mask simulating a high-altitude environment provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the installation of the photosensitive element of the flow sensor in the sleep mask simulating a high-altitude environment provided by the present invention;

[0028] Figure 5 This is a diagram showing the dimensional parameters of the light-emitting element of the flow sensor in the sleep mask simulating a high-altitude environment provided by the present invention;

[0029] Figure 6 This is a schematic diagram of the emission angle of the light-emitting element of the flow sensor in the sleep mask simulating a high-altitude environment provided by the present invention;

[0030] Figure 7 This is a schematic diagram of the different wavelength light sensitivity of the flow sensor in the sleep mask simulating a high-altitude environment provided by the present invention.

[0031] Figure 8 This is a schematic diagram of the rotating shaft of the flow sensor in the sleep mask that simulates a high-altitude environment provided by the present invention;

[0032] Figure 9 This is a schematic diagram of an embodiment of the flow sensor detection circuit in a sleep mask simulating a high-altitude environment provided by the present invention;

[0033] Figure 10This is a flowchart of the control module in the sleep mask that simulates a high-altitude environment provided by the present invention.

[0034] Figure 11 This is one of the exploded schematic diagrams of an embodiment of the sleep mask simulating a high-altitude environment provided by the present invention;

[0035] Figure 12 This is the second exploded schematic diagram of an embodiment of the sleep mask simulating a high-altitude environment provided by the present invention;

[0036] Figure 13 This is a schematic diagram of an embodiment of the sleep mask body in the simulated plateau environment provided by the present invention;

[0037] Figure 14 This is one of the schematic diagrams of the mounting base in the sleep mask simulating a high-altitude environment provided by the present invention;

[0038] Figure 15 This is a second schematic diagram of an embodiment of the mounting base in a sleep mask simulating a high-altitude environment provided by the present invention;

[0039] Figure 16 This is one of the schematic diagrams of the upper cover embodiment of the sleep mask simulating a high-altitude environment provided by the present invention;

[0040] Figure 17 This is a second schematic diagram of the upper cover embodiment of the sleep mask simulating a high-altitude environment provided by the present invention;

[0041] Figure 18 This is a schematic diagram of the sleep mask simulating a high-altitude environment provided by the present invention with the vents fully open.

[0042] Figure 19 This is a schematic diagram of the ventilation port being half-open in the sleep mask simulating a high-altitude environment provided by the present invention.

[0043] Figure 20 This is a schematic diagram of the installation of the drive motor in the sleep mask that simulates a high-altitude environment provided by the present invention.

[0044] Figure label:

[0045] 1. Base; 2. End cap; 3. Vortex air intake channel; 4. Rotating shaft; 5. Flat fan blade; 6. Light-emitting element; 7. Photosensitive element; 8. Air film; 9. First magnet; 10. Second magnet; 11. Light-transmitting hole; 12. Bearing; 13. Limiting shoulder; 14. Mask body; 15. Mounting base; 16. First air passage; 17. Second air passage; 18. Flow sensor; 19. Vent; 20. Flow resistance adjustment component; 21. Drive motor; 22. Drive gear; 23. Driven gear tooth; 24. Top cover; 25. Vent hole; 26. Fitting part; 27. Mounting post. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0047] Before describing the sleep mask that simulates a high-altitude environment provided by the present invention, the flow sensor included therein will be described in detail.

[0048] Example 1 - Flow Sensor

[0049] like Figure 1 The diagram shown is an exploded view of an embodiment of the flow sensor provided by the present invention. The flow sensor of this embodiment includes a base 1 and an end cap 2 arranged coaxially. A sealed inner cavity is formed between the inner wall of the base 1 and the inner wall of the end cap 2. The base 1 has an air inlet end, and the end cap 2 has an air outlet end. The air inlet end is provided with a plurality of vortex air inlet channels 3 arranged in a ring array. The vortex air inlet channels 3 are connected to the sealed inner cavity.

[0050] A rotating shaft 4 is provided inside the sealed inner cavity. The two ends of the rotating shaft 4 are respectively rotatably engaged with the base 1 and the end cover 2. A flat fan blade 5 is provided on the rotating shaft 4.

[0051] The two sides of the planar fan blade 5 are respectively provided with a light-emitting element 6 and a photosensitive element 7, and a light transmission channel is formed between the light-emitting element 6 and the photosensitive element 7.

[0052] Specifically, in this embodiment of the invention, the light-emitting element 6 and the photosensitive element 7 are respectively an infrared light-emitting diode and an infrared photosensitive diode, forming an optical transmission channel between them. Each rotation of the planar fan blade 5 causes the optical path to open and close once. The rotational speed of the planar fan blade 5 can be obtained by counting the number of on / off cycles within a certain time period. Regarding parameter selection, such as... Figure 5 As shown, in this embodiment of the invention, the infrared light-emitting diode has a diameter of 1.9 mm, a wavelength of 940 nm, and an emission angle of approximately ±10°. Figure 6 As shown; the infrared photodiode is 1.25*2 mm, and its spectral sensitivity is as follows. Figure 7 As shown, the wavelength of light with the highest sensitivity is 940 nanometers, which matches the light emitted by the infrared LED.

[0053] Regarding the selection of fan blades, the wind resistance of the blades must be neither too high nor too low. If the wind resistance is too high, a small airflow cannot drive the fan blades to rotate, resulting in low sensor sensitivity. If the wind resistance is too low, due to inertia, when the airflow decreases, the fan blade rotation speed is not entirely due to the airflow, leading to a non-linear relationship between the fan blade rotation speed and the airflow velocity, making subsequent calibration difficult, and the fan blades are unlikely to stop promptly after the airflow ceases. Therefore, this invention uses planar fan blades 5. To ensure that the planar fan blades 5 have low inertia and a certain degree of rigidity, preventing deformation under strong airflow (otherwise, the rotation speed and flow velocity would be difficult to maintain a linear relationship, hindering subsequent calibration), in this embodiment, the planar fan blades 5 are made of 0.2 mm thick aluminum foil, which has low inertia and a certain degree of rigidity, facilitating subsequent calibration. In this embodiment, due to the small size of the components, the planar fan blades 5 are fixed to the rotating shaft 4 by adhesive bonding.

[0054] The flow sensor provided by this invention, by setting multiple vortex air intake channels 3 in a ring array at the air intake end of the end cap 2, can transform the straight airflow into a rotating airflow, driving the planar fan blade 5 to rotate, since the breathing airflow is a straight airflow. The light-emitting element 6 and the photosensitive element 7 form a photoelectric detection module, and an optical path transmission channel is formed between them. Each rotation of the planar fan blade 5 causes the optical path to open and close once. By counting the number of on and off times within a certain period of time, the rotational speed of the planar fan blade 5 can be obtained. Since the wind resistance and driving capacity of the planar fan blade 5 are the same in both rotation directions, when airflow enters, the vortex air intake channel 3 can transform the straight airflow into a rotating airflow to drive the fan blade to rotate. When there is no airflow, the wind resistance can make the planar fan blade 5 stop quickly and in time, thereby improving the flow detection accuracy during breathing.

[0055] In this embodiment of the invention, the flow sensor further includes a detection module and a data acquisition and control module. The detection module outputs a pulse to the data acquisition and control module for each revolution of the planar fan blade 5. The acquisition and control module collects the pulse signal output by the detection module and performs counting and timing. Specifically, the detection module is responsible for signal detection of the planar fan blade 5, employing a photoelectric detection scheme. The detection module outputs a pulse to the data acquisition and control module for each revolution of the planar fan blade 5. The data acquisition and control module collects the pulse signal output by the detection module and performs counting and timing, calculating the rotational speed of the planar fan blade 5 based on the counting and timing. In some embodiments, the flow sensor further includes a Bluetooth communication module, a battery, and a management module. The Bluetooth communication module is controlled to send data at a fixed frequency. In this embodiment of the invention, the control module can use an ultra-low-power microcontroller STM32L072. The microcontroller calculates the pulse waveform output by the detection module. After startup, the microcontroller reads the count every 200 milliseconds and resets it. The number of pulses read is multiplied by 5 to obtain the number of revolutions per second of the planar fan blade, which is then sent to the Bluetooth module via a serial port. The Bluetooth module is responsible for managing Bluetooth device connections. Once a connection is successful, it automatically sends received data to the connected device and can also receive information. The flowchart is as follows: Figure 10 As shown. In a specific embodiment, the battery can be a lithium battery and can provide charging functionality, such as charging via a USB interface. Furthermore, the flow sensor provided by this invention employs... Figure 9 The circuit shown is used for control. The detection circuit is mainly driven by an infrared LED and an infrared photodiode. The infrared photodiode acts as a switch, grounded through a pull-down resistor. When the infrared photodiode is in either the on or off state, the emitter voltage of the infrared photodiode will be in either high or low state. The waveform output from the emitter of the infrared LED is not a standard square wave. After shaping by a Schmitt trigger, a square wave with better signal quality can be obtained.

[0056] like Figure 1 As shown, in this embodiment of the invention, the flow sensor further includes a one-way gas flow mechanism for preventing gas from flowing from the outlet end to the inlet end. Specifically, in this embodiment, the one-way gas flow mechanism includes a gas film 8 located on the outlet end. The gas film 8 can seal the outlet end, and when airflow flows out from the outlet end, the gas film 8 can deform along the airflow direction. In the initial state, the gas film 8 seals the outlet end to prevent gas from entering the sealed cavity. When airflow flows in from the inlet end, the periphery of the gas film 8 can deform along the airflow direction, allowing gas to flow out from the outlet end. In some embodiments, one-way valves or similar mechanisms can also be used to prevent and control one-way airflow.

[0057] like Figure 1As shown, in this embodiment of the invention, the gas unidirectional flow mechanism further includes a first magnet 9 and a second magnet 10 coaxially arranged with the gas film 8. The first magnet 9 and the second magnet 10 are respectively located on both sides of the gas film 8, and the second magnet 10 is fixedly mounted on the end cap 2. Specifically, in this embodiment of the invention, both the first magnet 9 and the second magnet 10 are permanent magnets. The end cap 2 is provided with a mounting groove, and the second magnet 10 is engaged in the mounting groove, which can fix the second magnet 10. Through the fixing effect of the first magnet 9 and the second magnet 10, the center part of the gas film 8 can be fixed, and when the airflow passes through, the periphery of the gas film 8 can be uniformly deformed.

[0058] In this embodiment of the invention, the cross-sectional area of ​​the vortex intake channel 3 gradually decreases from the inlet to the outlet. Since the respiratory airflow is relatively weak during the transition between exhalation and inhalation, the increasingly narrow interior of the vortex intake channel 3, as described above, causes the airflow velocity to gradually increase as it flows from the inlet to the outlet, thereby increasing the sensing sensitivity of the flow sensor.

[0059] In this embodiment of the invention, both the light-emitting element 6 and the photosensitive element 7 are disposed on the base 1. Specifically, as shown... Figure 3 As shown, the mounting positions of the light-emitting element 6 and the photosensitive element 7 determine the pulse duty cycle, where the shaded area represents the obscured portion and the blank area represents the unobscured portion. From a circuit detection perspective, it is desirable for the duty cycle of each pulse to be close to 50%, which is beneficial for stable detection. Therefore, in specific implementations, when... Figure 3 When θ is approximately 90°, the pulse duty cycle can be made close to 50%.

[0060] like Figure 4 As shown, in this embodiment of the invention, the base 1 is provided with a mounting groove, the photosensitive element 7 is located in the mounting groove, and the mounting groove is provided with a light-transmitting hole 11. Since the optical path between the light-emitting element 6 and the photosensitive element 7 is short and the transmission space is a relatively closed space, in order to prevent interference from scattered light, in addition to selecting an infrared light-emitting diode with a small emission angle, this embodiment also processes the input optical path of the infrared photosensitive diode by placing the infrared photosensitive diode in the mounting groove of the base 1 and providing a light-transmitting hole 11 in the mounting groove. The light-transmitting hole 11 has a certain depth and can shield the incident light and block the scattered light from entering.

[0061] like Figure 2 As shown, in this embodiment of the invention, the number of vortex intake channels 3 is an odd number. This ensures that in the initial state, the airflow in at least one vortex intake channel 3 can drive the planar fan blade 5 to rotate, ensuring that the planar fan blade 5 can start normally from any position. Specifically, in this embodiment, the number of vortex intake channels 3 is 7 as an example.

[0062] like Figure 8As shown, in this embodiment of the invention, bearings 12 are respectively fitted at both ends of the rotating shaft 4. One bearing 12 is mounted on the base 1, and the other bearing 12 is mounted on the end cover 2. The rotating shaft 4 is provided with limiting shoulders 13 for limiting the two bearings 12 respectively. Specifically, in this embodiment of the invention, the base 1 and the end cover 2 are respectively provided with mounting grooves for mounting the bearings 12. The two bearings 12 are respectively engaged in the mounting grooves located in the base 1 and the end cover 2. Under the action of the two bearings 12, the planar fan blade 5 can drive the rotating shaft 4 to rotate.

[0063] Example 2 - Sleeping mask simulating a high-altitude environment

[0064] like Figure 11 and Figure 12 The diagram shown is a schematic representation of an embodiment of a sleep mask simulating a high-altitude environment provided by the present invention. This embodiment of the sleep mask simulating a high-altitude environment includes a mask body 14, on which a mounting base 15 is provided, as shown... Figure 15 As shown, the mounting base 15 is provided with a first air passage 16, a second air passage 17 and a main air passage. The first air passage 16 and the second air passage 17 are connected to the main air passage, and the main air passage can be connected to the outside.

[0065] The first airway 16 and the second airway 17 are provided with flow sensors 18 for detecting expiratory flow and inspiratory flow respectively, and also include a flow resistance adjustment mechanism for adjusting the flow resistance of respiratory airflow in the main airway.

[0066] The flow resistance adjustment mechanism includes an air inlet 19 and a flow resistance adjustment component 20. The air inlet 19 is located on the end wall of the main air passage, and the flow resistance adjustment component 20 is used to adjust the size of the air inlet 19.

[0067] Specifically, in this embodiment of the invention, the flow sensor 18 is the flow sensor 18 described in Embodiment 1, and the flow sensor 18 located in the first air passage 16 and the flow sensor 18 located in the second air passage 17 are oriented in opposite directions, with the end of the flow sensor 18 located in the first air passage 16 having an air film facing upwards. Figure 1 (As shown in the direction), the flow sensor 18 located in the second airway 17 has one end with an air film facing downwards. Thus, the flow sensor 18 located in the first airway 16 is an expiratory flow sensor, and the flow sensor 18 located in the second airway 17 is an inspiratory flow sensor, which can be used to detect expiratory flow and inspiratory flow, respectively. In this embodiment of the invention, the mounting base 15 adopts a nose-shaped anthropomorphic design. The first airway 16 and the second airway 17 are symmetrically arranged on the left and right sides of the mounting base 15. When the mask is worn, the two nostrils are aligned with the first airway 16 and the second airway 17, which facilitates airflow into the corresponding flow sensor 18, reduces the distance the airflow travels, thereby reducing the probability of airflow leakage and improving the detection accuracy of the flow sensor 18.

[0068] The sleep mask simulating a high-altitude environment provided by this invention allows for adjustment of the opening of the air vent 19 during sleep via the flow resistance adjuster 20, thereby regulating the amount of air entering the total airway per unit time. This adjusts the total oxygen content in the air inhaled during each respiratory cycle, achieving the technical objective of simulating sleep at different altitudes in normal altitude areas. Furthermore, the expiratory and inspiratory flow rates can be measured and detected separately via flow sensors 18 installed in the first airway 16 and the second airway 17.

[0069] like Figure 14 As shown, in this embodiment of the invention, the vent 19 includes a plurality of sub-vents arranged in a ring array on the end wall of the main air passage. The flow resistance adjustment component 20 is coaxially arranged with the vent 19 and is rotatably engaged with the end wall of the main air passage. The flow resistance adjustment component 20 is provided with a plurality of adjustment plates arranged in a ring array on it for adjusting the size of the sub-vents. In this embodiment of the invention, a mounting shaft is provided at the center of all the sub-vents. The flow resistance adjustment component 20 is rotatably fitted onto the mounting shaft. By driving the flow resistance adjustment component 20 to rotate on the mounting shaft, the opening size of each adjustment plate can be adjusted to regulate the flow resistance of the corresponding sub-vent.

[0070] Specifically, such as Figure 18 and Figure 19 As shown, in this embodiment of the invention, the flow resistance regulator 20 has a ring array of multiple adjusting plates corresponding one-to-one with the number of sub-vents. All adjusting plates can completely block or fully open (or partially open) all corresponding sub-vents. As an example of this embodiment, the end wall of the main air passage has a ring array of three fan-shaped sub-vents, and the flow resistance regulator 20 has a ring array of three fan-shaped adjusting plates. In some embodiments, the sub-vents and adjusting plates can also be set to other shapes, and their number is not limited.

[0071] like Figure 20As shown, in this embodiment of the invention, the sleep mask simulating a high-altitude environment further includes a drive mechanism for driving the flow resistance adjustment component 20 to rotate. The drive mechanism includes a drive motor 21, a drive gear 22 on the output shaft of the drive motor 21, and a driven gear 23 on the outer periphery of the flow resistance adjustment component 20 that is connected to the drive gear 22 in a transmission manner. Specifically, in this embodiment of the invention, the mounting base 15 is provided with a mounting groove for mounting the drive motor 21, and the drive motor 21 is located in the mounting groove with its output shaft end facing outward. In this embodiment of the invention, the drive gear 22 and the driven gear 23 are directly meshed for transmission connection. As an example, the ratio of the number of teeth of the drive gear 22 to the number of teeth of the driven gear 23 is 17:52, and the reduction ratio is approximately 3. In some embodiments, the drive gear 22 and the driven gear 23 can also be connected by other transmission methods, which can be specifically set according to the space limitations of the device and the required transmission ratio.

[0072] In this embodiment of the invention, the sleep mask simulating a high-altitude environment also includes a position detection sensor for detecting the position of the flow resistance adjustment component 20. The position detection sensor is communicatively connected to the drive motor 21. Specifically, in this embodiment, the drive motor 21 is a stepper motor, and the position detection sensor operates on the principle of photoelectric detection. A blocking plate is installed on the flow resistance adjustment structure, which blocks the light path when the flow resistance adjustment component 20 rotates to its initial position. By setting the above-mentioned position detection sensor, the rotation angle of the flow resistance adjustment component 20 can be detected. Since the position detection sensor is communicatively connected to the drive motor 21, the controller can receive the position signal of the flow resistance adjustment component 20 detected by the position detection sensor. The control signal sends a control signal to the stepper motor based on the position signal, causing it to drive the flow resistance adjustment component 20 to rotate by a set angle, thereby controlling the opening size of the vent 19.

[0073] like Figure 11 , Figure 12 , Figure 16 and Figure 17 As shown, in this embodiment of the invention, the sleep mask simulating a high-altitude environment further includes an upper cover 24, which is located on the mounting base 15, and a position detection sensor is mounted on the upper cover 24; the upper cover 24 is provided with ventilation holes 25 for ventilation. Specifically, in this embodiment of the invention, the upper cover 24 includes a top plate and an end plate that are perpendicularly connected to each other. The top plate is used to be installed at a reserved installation position on the mounting base 15, and a cavity is formed between the top plate and the reserved installation position on the mounting base 15, in which components such as circuit boards and position detection sensors can be installed. The end plate is used to be fastened to the end of the mounting base 15, and an array of ventilation holes 25 for airflow is provided on the end plate.

[0074] like Figure 13As shown, in this embodiment of the invention, the mask body 14 is provided with a fitting portion 26 for conforming to the face. Specifically, in this embodiment of the invention, the fitting portion 26 is designed according to the contour of the human face and has a certain deformation capability, and can be made of silicone material. In this way, it can prevent breathing airflow from leaking from the gap between the mask and the face, gather all breathing airflow, and thus improve the detection accuracy of the flow sensor 18.

[0075] In this embodiment of the invention, a fixing rope is provided on the mask body 14. Specifically, as shown... Figures 11-13 As shown, the mask body 14 is provided with four mounting posts 27 with limiting discs, two on each of the left and right sides, for fixing the fixing ropes located on the left and right sides respectively. In this embodiment of the invention, the fixing ropes can be made of elastic material to facilitate fixing the mask body 14.

[0076] The sleep mask simulating a high-altitude environment provided by this invention can be used in conjunction with a blood oxygen measurement module, and can interact and provide feedback with the blood oxygen measurement module via a mobile phone. In specific implementation, it can be operated by setting up a mini-program on the mobile phone. The specific operation steps are as follows:

[0077] Power on the device, then open the mobile app and search for Bluetooth devices. Connect the phone to the Bluetooth module of the flow sensor 18 via Bluetooth, and then connect the phone to the blood oxygen measurement module via Bluetooth. Once connected, the mobile app displays the rotational speed of the planar fan blades 5 in both flow sensors 18, and also reads the pulse rate and blood oxygen concentration. The intake flow can be adjusted based on human blood oxygen parameters and further adjusted via a flow resistance adjustment mechanism to simulate the effect of adapting to low oxygen levels during sleep in a high-altitude environment.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sleep mask that simulates a high altitude environment, characterized by, The mask body is provided with a mounting seat, and the mounting seat is provided with a total airway which can communicate with the outside; Further comprising a flow resistance adjusting mechanism for adjusting the flow resistance of the respiratory airflow in the total airway, the flow resistance adjusting mechanism comprising a ventilation port and a flow resistance adjusting piece, the ventilation port being located on the end wall of the total airway, and the flow resistance adjusting piece being used for adjusting the size of the ventilation port; The mounting seat is provided with a first airway and a second airway, which communicate with the total airway, and the first airway and the second airway are provided with flow sensors for detecting exhalation flow and inhalation flow, respectively; The flow sensor comprises a base and a cover arranged coaxially, a closed inner cavity is formed between the inner wall of the base and the inner wall of the cover, the base has an air inlet end, the cover has an air outlet end, a plurality of vortex air inlet channels are arranged in an annular array on the air inlet end, and the vortex air inlet channels communicate with the closed inner cavity; A rotating shaft is arranged in the closed inner cavity, the two ends of the rotating shaft are rotatably connected with the base and the cover, respectively, and a planar fan blade is arranged on the rotating shaft; The two sides of the planar fan blade are respectively provided with a light emitting element and a light sensitive element, and a light path transmission channel is formed between the light emitting element and the light sensitive element.

2. The sleep mask that simulates a high altitude environment of claim 1, wherein, The ventilation port comprises a plurality of sub-ventilation ports arranged in an annular array on the end wall of the total airway, the flow resistance adjusting piece is coaxially arranged with the ventilation port, and the flow resistance adjusting piece is rotatably connected with the end wall of the total airway; A plurality of shielding pieces for adjusting the size of the sub-ventilation ports are arranged in an annular array on the flow resistance adjusting piece.

3. The sleep mask that simulates a high altitude environment of claim 2, wherein, The flow resistance adjusting piece is provided with a plurality of shielding pieces corresponding to the number of sub-ventilation ports in an annular array, and all the shielding pieces can completely shield or completely open all the corresponding sub-ventilation ports.

4. The sleep mask that simulates a high altitude environment of claim 2, wherein, Further comprising a driving mechanism for driving the rotation of the flow resistance adjusting piece, the driving mechanism comprising a driving motor, a driving gear being arranged on the output shaft of the driving motor, and a driven gear being arranged on the outer periphery of the flow resistance adjusting piece and being in transmission connection with the driving gear.

5. The sleep mask that simulates a high altitude environment of claim 4, wherein, Further comprising a position detection sensing device for detecting the position of the flow resistance adjusting piece, the position detection sensing device being in communication connection with the driving motor.

6. The sleep mask that simulates a high altitude environment of claim 5, wherein, Further comprising an upper cover, the upper cover being located at the front end of the mounting seat, and the position detection sensing device being mounted on the upper cover; The upper cover is provided with a breathable hole.

7. The sleep mask that simulates a high altitude environment of claim 1, wherein, The air outlet end is provided with an air film, the air film can seal the air outlet end, and in the case that there is airflow flowing out of the air outlet end, the air film can be deformed along the airflow direction; The flow sensors located in the first airway and the second airway are opposite to each other.

8. The sleep mask that simulates a high altitude environment of claim 7, wherein, Further comprising a first magnet and a second magnet, the first magnet and the second magnet being coaxially arranged with the air film and being located on the two sides of the air film, respectively, and the second magnet being fixedly arranged on the cover.

9. The sleep mask that simulates a high altitude environment according to any one of claims 1-8, wherein, The mask body is provided with a fitting part for fitting the face.

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