CN115013914A

CN115013914A - Air purifier, operation method and storage medium

Info

Publication number: CN115013914A
Application number: CN202210351671.7A
Authority: CN
Inventors: 范超; 韩东成
Original assignee: Anhui Easpeed Technology Co Ltd
Current assignee: Anhui Easpeed Technology Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-09-06

Abstract

The invention discloses an air purifier, which comprises a shell provided with a plurality of air inlets and air outlets; the driving module is used for enabling air to enter the shell from the air inlet and to be discharged from the air outlet; the master control system is used for controlling the operation of the driving module; the optical display module is arranged in the shell and connected with the master control system, the optical display module can form a floating real image in the air, can detect the interactive operation of a user on the floating real image, generates a corresponding control signal according to the detected interactive signal and sends the control signal to the master control system, and the master control system controls the operation of the driving module according to the control signal. According to the air purifier provided by the invention, the difficulty of operating the air purifier can be reduced, and meanwhile, the non-contact operation is cleaner and more sanitary.

Description

Air purifier, operation method and storage medium

Technical Field

The present invention relates to the field of air cleaners, and more particularly, to an air cleaner and a method of operating an air cleaner and a storage medium.

Background

In the prior art, the air purifier is generally provided with a touch display screen to display information of the air purifier, and a user can touch a button on the touch display screen to complete control of the air purifier. However, since the air purifier is likely to accumulate dust on the surface of the air purifier when being placed indoors for a long time, touch insensitivity and the like are likely to occur during the touch operation of a user. In addition, at the stage that the new crown epidemic situation is still not effectively controlled, cross infection of bacteria, viruses and the like is easy to occur when a user touches a touch display screen, and great hidden danger is brought to the health of the user.

Disclosure of Invention

The invention provides an air purifier which has the advantages of easiness in operation and control, no contact, cleanness, sanitation and high safety performance.

An embodiment of a first aspect of the present invention provides an air purifier, including a housing having a plurality of air inlets and air outlets; the driving module is used for enabling air to enter the shell from the air inlet and to be discharged from the air outlet; the master control system is connected with the driving module and used for controlling the driving module to operate; the optical display module is arranged in the shell and connected with the master control system, the optical display module can form a floating real image in the air, can detect the interactive operation of a user on the floating real image, generates a corresponding control signal according to the detected interactive signal and sends the control signal to the master control system, and the master control system controls the operation of the driving module according to the control signal.

In some embodiments, the housing includes a plurality of sidewalls, wherein a cavity is disposed on one sidewall, and the optical display module is accommodated in the cavity.

In some embodiments, the housing is provided with a protection member at the cavity, the protection member is flush with the side wall surface, and the protection member is used for protecting the optical display module received in the cavity.

In some embodiments, the optical display module comprises an imaging module for forming a floating real image in the air, the imaging module comprises an equivalent negative refractive index optical element and a display, the display is arranged on one side of the equivalent negative refractive index optical element, and after light rays emitted by the display pass through the equivalent negative refractive index optical element, a floating real image opposite to the display is formed on the other side of the equivalent negative refractive index optical element.

In some embodiments, the optical display module further includes a detection module and a control module, the detection module is configured to detect an interactive operation of a user on the floating real image, and feed back a detected interactive signal to the control module, and the control module generates a corresponding control signal according to the interactive signal and sends the control signal to the master control system.

In some embodiments, the equivalent negative index optical element comprises: the optical waveguide array comprises a first optical waveguide array and a second optical waveguide array, wherein the first optical waveguide array and the second optical waveguide array are tightly attached to each other on the same plane and are arranged orthogonally.

In some embodiments, the first optical waveguide array or the second optical waveguide array is composed of a plurality of parallel-arranged reflecting units arranged obliquely at 45 °, the cross section of each reflecting unit is rectangular, and a reflecting film is disposed along the same side or two sides of the stacking direction of the reflecting units.

In some embodiments, the reflective element has a cross-sectional width and length a and b, respectively, and satisfies: a is more than or equal to 0.1mm and less than or equal to 5mm, and b is more than or equal to 0.1mm and less than or equal to 5 mm.

In some embodiments, the equivalent negative index optical element further comprises two transparent substrates, the first and second arrays of optical waveguides being disposed between the two transparent substrates.

In some embodiments, the equivalent negative refractive index optical element further comprises an antireflection component and a viewing angle control component disposed between the first optical waveguide array and the second optical waveguide array; or the anti-reflection component and the visual angle control component are arranged between the transparent substrate and the first optical waveguide array; or the antireflection member and the viewing angle control member are disposed between the transparent substrate and the second optical waveguide array.

In some embodiments, an adhesive is disposed between the first optical waveguide array and the second optical waveguide array, between the first optical waveguide array and the adjacent transparent substrate, and between the second optical waveguide array and the adjacent transparent substrate.

In a second aspect, an embodiment of the present invention provides a control method for operating an air purifier, including: providing an aerial floating real image; detecting interaction operation to obtain interaction information; and generating a control instruction according to the interactive information.

A third aspect of the present invention provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of the air purifier of the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic diagram of an air purifier according to an embodiment of the first aspect of the present invention;

FIG. 2 is a block diagram of a control system for an air purifier according to an embodiment of the first aspect of the present invention;

FIG. 3 is a schematic structural diagram of an optical display module according to a first embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a plate lens according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present invention;

fig. 6 is a schematic front view of a flat lens according to an embodiment of the present invention in the thickness direction;

FIG. 7 is a schematic diagram of a partial structure of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an optical path of a plate lens according to an embodiment of the present invention;

FIG. 9 is an internal optical path schematic diagram of a plate lens according to an embodiment of the invention;

FIG. 10 is a schematic imaging diagram of a flat lens according to an embodiment of the invention;

fig. 11 is a flow chart of a method of operating an air purifier in accordance with an embodiment of the second aspect of the invention.

Reference numerals:

an air purifier 1000, a shell 200, a side wall 210, an air inlet 221, an air outlet 220,

the grill 230, the base 240, the cavity 250, the protector 251,

a filter 300, a driving module 400, a first fan 410, a second fan 420, a driving device 430,

the main control system 500, the optical display module 100,

an imaging module 20, a flat lens 1, a display 21, a mounting frame 22, a floating real image 25,

the detection module 30, the control module 40,

a first optical waveguide array 6, a second optical waveguide array 7, a transparent substrate 8,

a reflection unit 9, a reflection film 10 and an adhesive 11.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Moreover, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

An embodiment of a first aspect of the invention provides an air purifier 1000. An air purifier 1000 according to a first embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, an air purifier 1000 according to an embodiment of the present invention includes: the display module comprises a shell 200, a filter device 300 arranged in the shell 200, a driving module 400, a main control system 500 and an optical display module 100. The main control system 500 is electrically connected to the filtering device 300, the driving module 400 and the optical display module 100, and is used for controlling the operations of the above devices and modules.

The housing 200 includes four sidewalls 210 connected in sequence, a plurality of air inlets 211 are formed at the bottom end of each sidewall 210, and external air can enter the air purifier 1000 through the air inlets 211. The top of the housing 200 is opened with an opening, which is an air outlet 220 for air to pass through. The housing 200 is provided with a grill 230 at the outlet 220, and the grill 230 covers the outlet 220 to prevent external objects from entering the interior of the housing 200. It is understood that an air duct structure (not shown) is further disposed in the housing 200, and the air duct structure is used for communicating the air inlet 211 with the air outlet 220. In addition, the bottom of the housing 200 is provided with a plurality of bases 240 for supporting the housing 200.

Referring to fig. 3, a cavity 250 is further disposed in the housing 200, an opening is disposed on the cavity 250 near one of the sidewalls 210, and the optical display module 100 is accommodated in the cavity 250. The cavity 250 is provided with a light-transmissive protection member 251 at an opening position, the protection member 251 is flush with the surface of the sidewall 210, and the protection member 251 is used for protecting the optical display module 100 accommodated in the cavity 250. It can be understood that, by disposing the optical display module 100 in the cavity 250, the optical display module 100 no longer protrudes from the surface of the sidewall 210, and thus the optical display module is more visually attractive.

The filtering device 300 is used for filtering air entering through the air inlet 211, and preferably, the filtering device 300 has a multi-layer filtering structure, so that multi-layer filtering layer materials can be switched according to requirements to filter air in different environments, and the application range is wider. In this embodiment, in order to achieve a better filtering effect, the filter device 300 corresponds to the air inlet 211, so that the air flowing into the housing 200 from the air inlet 211 enters the air duct structure after being filtered by the filter device 300. Of course, in other embodiments, the filter device 300 does not need to face the air inlet 211, and the invention is not limited thereto.

Referring to fig. 2, the driving module 400 includes a first fan 410, a second fan 420 and a driving device 430. In this embodiment, the first fan 410 is disposed near the inlet 211 to accelerate the air entering the inlet 211, and the second fan 420 is disposed near the outlet 220 to accelerate the air exiting the outlet 220. It is understood that the air duct structure located in the housing 200 is disposed between the first fan 410 and the second fan 420 to guide the air flowing between the intake vent 211 and the exhaust vent 220, that is, the first fan 410 is used for drawing the air from the intake vent 211 into the housing 200 and flowing the air into the air duct structure, and the second fan 420 is used for exhausting the filtered air from the exhaust vent 220 out of the housing 200. The driving device 430 is used for driving the first fan 410 and the second fan 420 to rotate at the same speed or different speeds. The driving device 430 may be a motor, and the first fan 410 and the second fan 420 are controlled to rotate at the same speed by using one motor, or the driving device may be a motor and connected to the first fan 410 and the second fan 420 through different auxiliary connection media, so as to achieve the purpose of rotating at different speeds. Of course, the driving device 41 may also be two motors, and the two motors are correspondingly connected to the first fan 410 and the second fan 420, respectively, so that the rotation speed of the first fan 410 and the rotation speed of the second fan 420 can be controlled according to the requirement of purifying the environment, so as to adapt to the air purifying speed in a certain space. In addition, the driving unit 430 is disposed in the housing 200, so that the space in the housing 200 is fully utilized, and the volume of the air cleaner 1000 can be reduced.

The air purifier 1000 sucks air from the air inlet 211 through the close fit among the devices in the housing 200, filters the air by the filtering device 400, and then discharges the air from the air outlet 220, so that the air is purified in a certain range of activity space, and the purpose of obtaining a healthy living environment is achieved.

Referring to fig. 2 and 3, the optical display module 100 includes an imaging module 20, a detecting module 30 and a control module 40. The imaging module 20 is used for displaying the image displayed by the optical display module 100 in the air in a floating real image 25 manner. The detection module 30 may detect the user's interaction on the floating real image 25 to generate interaction information, and pass the interaction information to the control module 40. The control module 40 determines the specific operation content of the user according to the internal instruction set and the interaction information, and generates a corresponding control signal to be sent to the main control system 500 of the air purifier 1000 to control the air purifier 1000 to complete various operations. Meanwhile, the control module 40 transmits the operation interface or the control result corresponding to the control signal to the imaging module 20, and displays an image in the air through the imaging module 20, so that the user can conveniently operate the next step or know the control result. It is understood that the optical display module 100 also includes a driving circuit and an associated input/output interface for connecting the above systems, which are not shown in the drawings.

The imaging module 20 includes an equivalent negative refractive index optical element, a display 21, and a mounting frame 22. The equivalent negative refractive index optical element is accommodated in the cavity 250 and clings to the protection member 251. Display 21 holds at cavity 250 top, mounting bracket 22 holds at cavity 250 bottom, mounting bracket 22 one end and display 21 fixed connection are with display 21 fixed mounting in cavity 250. In an embodiment, the equivalent negative refractive index optical element may be a flat lens 1, and after light emitted from the display 21 passes through the flat lens 1, a floating real image 25 opposite to the display 21 is formed on the other side of the flat lens 1. The position of the floating real image 25 in the air is adjusted by changing the positions of the display 21 and the flat lens 1. The detection module 30 is used for detecting the operation of the user on the floating real image 25 and feeding back the detected interaction signal to the control module 40. The sensing area of the detection module 30 and the floating real image 25 are located on the same plane and include a three-dimensional space where the floating real image 25 is located, and when the detection module is installed, the optimal installation position can be selected according to the installation space, the viewing angle and the use environment, so that a user can operate the floating real image 25 conveniently, and the sensitivity and convenience of user operation are improved.

According to some embodiments of the present invention, the imaging mode of the Display 21 may include RGB (red, green, blue) Light Emitting Diodes (LEDs), LCD (Liquid Crystal Display), LCOS (Liquid Crystal on Silicon) devices, OLED (Organic Light-Emitting Diode) array, projection, laser Diode, or any other suitable Display or stereoscopic Display, without limitation.

In the present embodiment, the luminance of the display 21 can be set to not lower than 500cd/m2, so that the influence of luminance loss in the optical path propagation can be reduced. Of course, in practical applications, the display brightness of the display 21 may be adjusted according to the brightness of the ambient light.

In addition, according to some embodiments of the present invention, the visible angle control processing is performed on the display image surface of the display 21, so that the ghost of the floating real image 25 can be reduced, the image quality can be improved, and the peeping of others can be prevented, thereby being widely applied to other input devices requiring privacy information protection.

According to some embodiments of the present invention, the detection module 30 may be a far-near infrared sensor, an ultrasonic sensor, a laser interference sensor, a grating sensor, an encoder, a fiber optic sensor, or a CCD sensor. That is, the sensing form of the detection module 3 includes, but is not limited to, far and near infrared, ultrasonic, laser interference, grating, encoder, fiber optic type or CCD (charge coupled device), etc.

According to some embodiments of the present invention, the control module 40, the imaging module 20 and the detection module 30 may be connected in a wired or wireless manner to transmit digital or analog signals, so as to flexibly control the volume of the optical display module 100 and enhance the electrical stability of the optical display module 100.

When the user needs to use the air purifier 1000, the user may click an operation button in the floating real image 25, the detection module 30 detects the interaction operation of the user, and feeds back the interaction information to the control module 40, and the control module 40 determines the operation instruction of the user according to the internal instruction set and the interaction information. In an embodiment, the control module 40 determines that the user clicks the power-on operation button, and generates a corresponding control signal to send to the main control system 500. After receiving the control signal, the main control system 500 controls the driving module 400 to open. At this time, the driving device 430 controls the first fan 410 and the second fan 420 to rotate, thereby completing the start-up operation of the air purifier 1000. In another embodiment, the control module 40 determines that the wind speed increasing operation button is clicked by the user, so as to generate a corresponding control signal to be sent to the main control system 500. After receiving the control signal, the main control system 500 controls the driving module 400 to increase the operating power. At this time, the driving device 430 controls the first fan 410 and the second fan 420 to increase the rotation speed.

Through above operation, can reduce and control air purifier 1000's the degree of difficulty reduces risks such as the unexpected electric shock of user, and the security is higher, and the more clean health of non-contact operation more than simultaneously to avoid producing cross infection's such as bacterium, virus risk because of the user touches air purifier 1000.

The structure and imaging principle of the flat lens according to the present invention will be described with reference to fig. 4 to 10, which will be described in detail below.

As shown in fig. 4 to 5, the equivalent negative refractive index optical element may employ a flat lens 1, the flat lens 1 including two transparent substrates 8, and a first optical waveguide array 6 and a second optical waveguide array 7 disposed between the two transparent substrates 8. The first optical waveguide array 6 and the second optical waveguide array 7 are closely attached and orthogonally arranged on the same plane. Preferably, the first optical waveguide array 6 and the second optical waveguide array 7 have the same thickness, which facilitates design and production. Specifically, as shown in fig. 4, the flat lens includes a first transparent substrate 8, a first optical waveguide array 6, a second optical waveguide array 7, and a second transparent substrate 8 in this order from the display 21 side to the floating real image 25 side.

Wherein the first transparent substrate 8 and the second transparent substrate 8 each have two optical surfaces, and the transparent substrate 8 has a transmittance of 90% to 100% for light having a wavelength of 390nm to 760 nm. The material of the transparent substrate 8 may be at least one of glass, plastic, polymer and acrylic for protecting the optical waveguide array and filtering out unwanted light. Note that, if the strength after the first optical waveguide array 6 and the second optical waveguide array 7 are bonded to each other in an orthogonal manner is sufficient, or if the thickness of the mounting environment is limited, only one transparent substrate 8 may be disposed, or no transparent substrate 8 may be disposed.

As shown in fig. 5, the first optical waveguide array 6 and the second optical waveguide array 7 are composed of a plurality of reflection units 9 having a rectangular cross section, and the lengths of the reflection units 9 are limited by the peripheral dimensions of the optical waveguide arrays so as to be different in length. The extending direction of the reflecting unit 9 in the first optical waveguide array 6 is X, the extending direction of the reflecting unit 9 in the second optical waveguide array 7 is Y, and the Z direction is the thickness direction of the optical waveguide array. The extending directions (optical waveguide array directions) of the reflecting units 9 in the first optical waveguide array 6 and the second optical waveguide array 7 are perpendicular to each other, that is, the first optical waveguide array 6 and the second optical waveguide array 7 are orthogonally arranged when viewed from the Z direction (thickness direction), so that two light beams in the orthogonal directions converge at one point, and an object image plane (a light source side and an imaging side) is ensured to be symmetrical relative to a flat lens, an equivalent negative refraction phenomenon is generated, and aerial imaging is realized.

As shown in fig. 6, the first optical waveguide array 6 or the second optical waveguide array 7 is composed of a plurality of parallel arranged reflection units 9 obliquely arranged with being deflected by 45 ° at the user viewing angle. Specifically, the first optical waveguide array 6 may be composed of reflection units 9 arranged side by side at 45 ° in the lower left direction and having a rectangular cross section, the second optical waveguide array 7 may be composed of reflection units 9 arranged side by side at 45 ° in the lower right direction and having a rectangular cross section, and the arrangement directions of the reflection units 9 in the two optical waveguide arrays may be interchanged. For example, the extending direction of the reflection unit 9 in the first optical waveguide array 6 is Y, the extending direction of the reflection unit 9 in the second optical waveguide array 7 is X, the Z direction is the thickness direction of the optical waveguide array, and the first optical waveguide array 6 and the second optical waveguide array 7 are orthogonally arranged when viewed from the Z direction (thickness direction), so that two light beams in the orthogonal direction converge at one point, and the object image planes (light source side and imaging side) are ensured to be symmetrical with respect to the flat lens, thereby generating an equivalent negative refraction phenomenon and realizing aerial imaging. The optical waveguide material has an optical refractive index n1, in some embodiments, n1>1.4, for example, n1 is 1.5, 1.8, 2.0, and the like.

As shown in fig. 7, for the first optical waveguide array 6 and the second optical waveguide array 7, two interfaces exist between each reflection unit 9 and its adjacent reflection unit 9, and the interfaces are bonded by an adhesive 11 having good light transmittance. Preferably, the adhesive 11 may be selected from a photosensitive adhesive or a thermosetting adhesive, and the thickness of the adhesive 13 is T1, and T1>0.001mm is satisfied, for example, T1 ═ 0.002mm or T1 ═ 0.003mm or T1 ═ 0.0015mm, and the specific thickness may be set according to specific needs. And adhesives 11 are respectively arranged between the adjacent optical waveguide arrays in the flat lens 1 and between the optical waveguide arrays and the transparent substrate 8, so that the firmness is improved.

In some embodiments, the reflection unit 9 may have a rectangular cross section, and the reflection film 10 is provided along one or both sides of the arrangement direction of the reflection unit 9. Specifically, in the arrangement direction of the optical waveguide array, the two sides of each reflection unit 9 are plated with the reflection films 10, and the material of the reflection films 10 may be a metal material such as aluminum, silver, or other non-metal compound material that realizes total reflection. The reflecting film 10 is used for preventing light from entering an adjacent optical waveguide array due to no total reflection to form stray light to influence imaging. Alternatively, each reflection unit 9 may be formed by adding a dielectric film to the reflection film 10, and the dielectric film may function to increase the light reflectance.

The cross section width a and the cross section length b of the single reflection unit 9 satisfy 0.1mm < a < 5mm, and 0.1mm < b < 5mm, and further satisfy 0.1mm < a < 2mm, and 0.1mm < b < 2mm, for better imaging effect. For example, a is 0.2mm, b is 0.2 mm; alternatively, a is 0.5mm and b is 0.5 mm. When a large screen is displayed, the requirement of large size can be realized by splicing a plurality of optical waveguide arrays. The overall shape of the optical waveguide array is set according to the application scene, in this embodiment, the two groups of optical waveguide arrays are integrally rectangular, the two diagonal reflection units 9 are triangular, and the middle reflection unit 9 is a trapezoidal structure. The lengths of the single reflection units 9 are different, the reflection unit 9 positioned on the diagonal of the rectangle has the longest length, and the reflection units 9 at the two ends have the shortest length. In addition, the flat lens 1 may further include an anti-reflection component and a viewing angle control component, and the anti-reflection component may improve the overall transmittance of the flat lens, and improve the definition and brightness of the floating real image 25. The visual angle control part can be used for eliminating the afterimage of the floating real image 25, reducing the dizzy feeling of the observer, preventing the observer from peeping into the device from other angles and improving the integral aesthetic degree of the device. The anti-reflection component and the viewing angle control component may be combined, or may be separately disposed between the transparent substrate 8 and the waveguide array, between two waveguide arrays, or on the outer layer of the transparent substrate 8.

The principles of aerial imaging are explained below. On the micrometer scale, a mutually orthogonal double-layer waveguide array structure is used for orthogonal decomposition of any optical signal. The original signal is projected on the first optical waveguide array 6, a rectangular coordinate system is established by taking the projection point of the original signal as the origin and taking the projection point of the original signal as the X axis perpendicular to the first optical waveguide array 6, and the original signal is decomposed into two paths of mutually orthogonal signals of a signal X positioned on the X axis and a signal Y positioned on the Y axis in the rectangular coordinate system. When the signal X passes through the first optical waveguide array 6, the signal X is totally reflected on the surface of the reflective film 10 at a reflection angle equal to the incident angle; at this time, the signal Y remains parallel to the first optical waveguide array 6, and after passing through the first optical waveguide array 6, the signal Y is totally reflected on the surface of the reflective film 10 at the same reflection angle as the incident angle on the surface of the second optical waveguide array 7, and the reflected optical signal composed of the reflected signal Y and the signal X is mirror-symmetric to the original optical signal. Therefore, the light rays in any direction can realize mirror symmetry through the flat lens 1, the divergent light of any light source can be converged into a floating real image again at the symmetrical position through the flat lens 1, the imaging distance of the floating real image is the same as the distance from the flat lens 1 to an image source, namely a display 21, the floating real image is imaged at equal distance, and the floating real image is positioned in the air, does not need a specific carrier, and directly presents the real image in the air. Therefore, the image in the space seen by the user is the image emitted from the display 21.

In the embodiment of the present invention, the light emitted from the light source of the display 21 passes through the flat lens 1, and the above process occurs on the flat lens 1. Specifically, as shown in fig. 9, the incident angles of light rays on the first optical waveguide array 6 are α 1, α 2, and α 3, respectively, the reflection angles of light rays on the first optical waveguide array 6 are β 1, β 2, and β 3, where α 1 is β 1, α 2 is β 2, and α 3 is β 3, the incident angles on the second optical waveguide array 7 after reflection by the first optical waveguide array 6 are γ 1, γ 2, and γ 3, respectively, and the reflection angles on the second optical waveguide array 7 are δ 1, δ 2, and δ 3, where γ 1 is δ 1, γ 2 is δ 2, and γ 3 is δ 3.

Further, when the incident angles after the convergent imaging are α 1, α 2, and α 3 … … α n, respectively, and the distance between the light source of the display 21 and the flat lens is L, the distance between the imaging position of the floating real image and the flat lens is also L, and the angle of visibility ∈ of the floating real image is 2 times max (α).

It can be understood that if the size of the optical waveguide array is small, the image can be seen only at a certain distance from the imaging side of the optical waveguide array; if the size of the optical waveguide array is increased, a larger imaging distance can be realized, and thus the visual field rate is increased.

Preferably, the included angle between the flat lens 1 and the display 21 is set to be in the range of 45 ° ± 5 °, so that the size of the flat lens 1 can be effectively utilized, the imaging quality is improved, and the influence of afterimages is reduced. Furthermore, if there are other requirements for the imaging position, other angles may be selected at the expense of part of the imaging quality, and the flat lens 1 is preferably sized to display the floating real image 25 as it appears on the entire display 21. However, if only a part of the display 21 needs to be seen in actual use, the size and position of the flat lens 1 can be freely adjusted according to the actual display, and the size and position are not limited to this.

In addition, while the principle of imaging by the slab lens 1 having the double-layered optical waveguide array structure is mainly described above, in another embodiment, if a plurality of cubic columnar reflection units 9 with reflection films 12 are provided on all four peripheral surfaces, and the plurality of cubic columnar reflection units 9 are arranged in an array in the X and Y directions in the single-layered optical waveguide array structure, that is, two optical waveguide arrays are combined into one layer, the imaging principle of the imaging principle is the same as that of the double-layered optical waveguide array structure, and the imaging principle can also be used as the structure of the slab lens 1.

In the embodiment, the thicknesses of the first optical waveguide array 6 and the second optical waveguide array 7 are the same, so that the complexity of the structures of the first optical waveguide array 6 and the second optical waveguide array 7 can be simplified, the manufacturing difficulty of the first optical waveguide array 6 and the second optical waveguide array 7 can be reduced, the production efficiency of the first optical waveguide array 6 and the second optical waveguide array 7 can be improved, and the production cost of the first optical waveguide array 6 and the second optical waveguide array 7 can be reduced. It should be noted that the thickness is equal to a relative range, and is not absolutely equal, that is, for the purpose of improving the production efficiency, a certain thickness difference may exist between the optical waveguide arrays without affecting the aerial imaging quality.

In a second embodiment of the present invention, a control method for operating an air purifier is provided, as shown in fig. 11, the method of the embodiment of the present invention at least includes steps S1-S3.

And step S1, providing the floating real image in the air.

In order to solve the problems of inconvenient operation and potential safety hazard in touch operation of the conventional air purifier, the embodiment of the invention adopts an interactive aerial imaging technology, and forms a floating real image 25 at a determined position in the air by an imaging module 20. Specifically, the display 21 of the imaging module 20 displays screen information, which may include state information, storage information, operation buttons, and the like of the air purifier 1000. The flat lens 1 projects the screen information displayed on the display 21 into the air to form a floating real image 25, and it is understood that the imaging position of the floating real image 25 in the air can be changed by adjusting the positions of the display 21 and the flat lens 1.

And step S2, detecting the interactive operation and obtaining the interactive information.

In the embodiment of the invention, the position of the floating real image 25 generated by adopting the interactive aerial imaging technology is relatively fixed in the air, the user can directly click the picture information in the floating real image 25 for operation, the detection module can detect the interactive operation of the user clicking the floating real image 25 and the like, so as to obtain the interactive information, and the interactive information is sent to the control module.

And step S3, generating a control command according to the mutual information.

In an embodiment, the control module 40 processes and analyzes the acquired interaction information by combining with an internal instruction set, determines specific operation contents of the user, generates a corresponding control signal, and sends the control signal to the main control system of the air purifier, and the main control system can control the operation of the air purifier according to the control signal, so as to complete the operation purpose of the user.

According to the air purifier method provided by the embodiment of the invention, the floating real image 25 is formed at the determined position of the display picture in the air through the interactive aerial imaging technology, a user can operate according to the picture information in the floating real image 25, when the user operation information is detected, the detection module 30 detects the interactive operation, so that the interactive information of the user is obtained, the control module 40 processes and analyzes the obtained interactive information by combining with an internal instruction set, the specific operation content of the user is judged, a corresponding control signal is generated, and the control signal is sent to the main control system of the air purifier, and the main control system can control the air purifier to operate according to the control signal, so that the operation purpose of the user is completed. The method can make the operation mode of the user more convenient and visual, and avoids the contact with the air purifier body during the operation of the user, thereby reducing the risks of accidental electric shock and the like of the user, having higher safety and cleaner and more sanitary non-contact operation, and avoiding the pollution to the surface of the air purifier caused by the touch of the user on the air purifier.

A third embodiment of the present invention provides a storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the biometric acquisition and identification method of the above embodiments.

In the description of this specification, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps in custom logic functions or processes, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a sequential list of executable instructions that may be thought of as being useful for implementing logical functions, may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that may fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: discrete logic circuits with logic gates for implementing logic functions on data signals, application specific integrated circuits with appropriate combinational logic gates, Programmable Gate Arrays (PGAs), Field Programmable Gate Arrays (FPGAs), etc.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that can be related to instructions of a program, which can be stored in a computer-readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the description of the specification, references to "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air purifier, comprising:

the air conditioner comprises a shell, wherein a plurality of air inlets and air outlets are formed in the shell;

the driving module is used for enabling air to enter the shell from the air inlet and to be discharged from the air outlet;

the master control system is connected with the driving module and is used for controlling the driving module to operate;

the optical display module is arranged in the shell and connected with the master control system, the optical display module can form a floating real image in the air, can detect the interactive operation of a user on the floating real image, generates a corresponding control signal according to the detected interactive signal and sends the control signal to the master control system, and the master control system controls the operation of the driving module according to the control signal.

2. The air purifier of claim 1, wherein the housing comprises a plurality of sidewalls, wherein a cavity is defined in one of the sidewalls, and the optical display module is received in the cavity.

3. The air purifier of claim 2, wherein the housing is provided with a protector at the cavity, the protector being flush with the sidewall surface, the protector being configured to protect an optical display module received in the cavity.

4. The air purifier as claimed in claim 1, wherein the optical display module comprises an imaging module for forming a real floating image in the air, the imaging module comprises an equivalent negative refractive index optical element and a display, the display is disposed on one side of the equivalent negative refractive index optical element, and after the light emitted from the display passes through the equivalent negative refractive index optical element, a real floating image opposite to the display is formed on the other side of the equivalent negative refractive index optical element.

5. The air purifier according to claim 4, wherein the optical display module further comprises a detection module and a control module, the detection module is configured to detect an interactive operation of a user on the floating real image and feed back a detected interactive signal to the control module, and the control module generates a corresponding control signal according to the interactive signal and sends the control signal to the main control system.

6. The manipulation panel of claim 4 wherein the equivalent negative index optical element comprises: the optical waveguide array comprises a first optical waveguide array and a second optical waveguide array, wherein the first optical waveguide array and the second optical waveguide array are tightly attached to each other on the same plane and are arranged orthogonally.

7. The air purifier of claim 6, wherein the first optical waveguide array or the second optical waveguide array is composed of a plurality of parallel-arranged reflecting units arranged obliquely at 45 °, the reflecting units have a rectangular cross section, and reflecting films are provided along the same side or both sides of the stacking direction of the reflecting units.

8. The air cleaner of claim 7, wherein the reflective element has a cross-sectional width and length a and b, respectively, and satisfies: a is more than or equal to 0.1mm and less than or equal to 5mm, and b is more than or equal to 0.1mm and less than or equal to 5 mm.

9. The air purifier of claim 6 wherein the equivalent negative index optical element further comprises two transparent substrates, the first optical waveguide array and the second optical waveguide array being disposed between the two transparent substrates.

10. The air purifier of claim 9, wherein the equivalent negative refractive index optical element further comprises an anti-reflection component and a viewing angle control component, the anti-reflection component and the viewing angle control component disposed between the first optical waveguide array and the second optical waveguide array; or

The anti-reflection component and the visual angle control component are arranged between the transparent substrate and the first optical waveguide array; or

The antireflection member and the viewing angle control member are disposed between the transparent substrate and the second optical waveguide array.

11. The air purifier of claim 9 wherein an adhesive is disposed between the first optical waveguide array and the second optical waveguide array, between the first optical waveguide array and the adjacent transparent substrate, and between the second optical waveguide array and the adjacent transparent substrate.

12. A manipulation method for operating an air purifier, comprising:

providing an aerial floating real image;

detecting interaction operation to obtain interaction information;

and generating a control instruction according to the interactive information.

13. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of operating an air purifier of claim 12.