CN113062080A

CN113062080A - Non-contact washing machine and method and storage medium

Info

Publication number: CN113062080A
Application number: CN202110327725.1A
Authority: CN
Inventors: 范超; 韩东成
Original assignee: Anhui Dongchao Technology Co ltd
Current assignee: Anhui Dongchao Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-07-02

Abstract

The invention discloses a non-contact washing machine, comprising: a cabinet in which a drum for accommodating laundry is disposed; a panel mounted on the case; a main control system which can control the drum to rotate to wash the clothes; the optical display module assembly, the optical display module assembly sets up on the panel, the optical display module assembly includes: the washing machine comprises an imaging module, a detection module and a control module, wherein the imaging module is used for forming a floating real image in the air, the detection module is used for detecting the operation of a user on the floating real image and feeding back a detected interaction signal to the control module, and the control module generates a corresponding control signal according to the interaction signal to control the washing machine. According to the non-contact washing machine, the difficulty of operating the washing machine can be reduced, and meanwhile, the non-contact operation is cleaner and more sanitary.

Description

Non-contact washing machine and method and storage medium

Technical Field

The present invention relates to the technical field of washing machines, and more particularly, to a contactless washing machine, a method of operating the contactless washing machine, and a storage medium.

Background

In the prior art, a washing machine is generally provided with a liquid crystal touch screen to display information of the washing machine, and a user can touch a button on the liquid crystal touch screen to complete the operation and control of the washing machine. However, when the user clicks and controls the washing machine, the user needs to press the solid key on the washing machine, and because the solid key is small, the control difficulty is large, and there are accidental risks such as electric shock, and meanwhile, greasy dirt residues often remain on the surface of the washing machine, so that the washing machine is not clean and sanitary during contact operation.

Disclosure of Invention

The invention provides a non-contact washing machine which has the advantages of easiness in operation and control, no contact, cleanness, sanitation and high safety performance.

In one embodiment, the present invention provides a contactless washing machine, including: a cabinet in which a drum for accommodating laundry is disposed; a panel mounted on the case; a main control system which can control the drum to rotate to wash the clothes; the optical display module assembly, the optical display module assembly sets up on the panel, the optical display module assembly includes: the device comprises an imaging module, a detection module and a control module, wherein the imaging module is used for forming a floating real image in the air, the detection module is used for detecting the operation of a user on the floating real image and feeding back a detected interaction signal to the control module, and the control module generates a corresponding control signal according to the interaction signal.

In some embodiments, the washing machine further comprises a water path system including a water inlet pipe through which the washing water enters the drum and a water outlet pipe from which the washing water is discharged.

In some embodiments, a water level detector is further disposed in the tank, and the water level detector is configured to detect a water level of the washing water in the drum and send information of the water level to the main control system.

In some embodiments, the imaging module includes 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 light emitted by the display passes 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 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, the antireflection component and the viewing angle control component being 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 some embodiments, the optical display module further comprises: the total reflector is arranged on one side of the equivalent negative refractive index optical element and arranged on the same side of the display so as to reflect light rays emitted by the display to the equivalent negative refractive index optical element.

In some embodiments, the equivalent negative index optical element comprises: a retro-reflector and a beam splitter, the retro-reflector and the display being located on a same side of the beam splitter and the beam splitter reflecting light from the display to the retro-reflector, the beam splitter transmitting light from the retro-reflector.

In some embodiments, the surface of the retro reflector is provided with an 1/4 wave plate.

A second aspect embodiment of the present invention provides a method of operating a contactless washing machine, comprising: 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 embodiment 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 contactless washing machine described in 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 structural view of a contactless washing machine according to an embodiment of a first aspect of the present invention;

FIG. 2 is a block diagram of a control system of an optical display module according to an embodiment of a 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 diagram of a human-computer interaction structure of an optical display module according to a first embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a plate lens according to an embodiment of the present invention;

FIG. 6 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. 7 is a schematic front view of a plate lens according to an embodiment of the present invention in the thickness direction;

FIG. 8 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. 9 is a schematic diagram of an optical path of a plate lens according to an embodiment of the present invention;

FIG. 10 is an internal optical path schematic of a plate lens according to an embodiment of the invention;

FIG. 11 is a schematic imaging diagram of a flat lens according to an embodiment of the invention;

FIG. 12 is a schematic view of an optical display module with additional total reflection mirrors according to a second embodiment of the present invention;

FIG. 13 is a schematic view of an optical display module according to a third embodiment of the invention.

Fig. 14 is a flow chart of a method of a contactless washing machine according to an embodiment of the second aspect of the present invention.

Reference numerals:

a washing machine 1000, a cabinet 200, a main control system 300, a waterway system 300, a driving system 500,

the door body 210, the panel 220, the adjusting feet 230, the roller 240, the water level detector 250, the material box 221,

the flow of water into the water inlet pipe 410, the water outlet pipe 420,

the optical display module 100 is provided with a plurality of optical elements,

an imaging module 20, a flat lens 1, a display 2, a detection module 3, a floating real image 4, a control module 5,

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

a reflecting unit 9, a reflecting film 10, an adhesive 11,

total reflection mirror 12, virtual image 13, retro-reflector 14,

beam splitter

15, 1/4 waveplate 16.

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 illustrative 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. Furthermore, the present invention 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.

A first embodiment of the invention provides a contactless washing machine 1000. A contactless washing machine 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, a contactless washing machine 1000 according to an embodiment of the present invention includes: the optical display module comprises a box body 200, a main control system 300, a water path system 400, a driving system 500 and an optical display module 100.

The cabinet 200 includes a door 210 disposed at a front end of the cabinet 200, a panel 220 mounted at a front end of the cabinet 200, four adjusting legs 230 mounted at a bottom end of the cabinet 200, and a drum 240 mounted in the cabinet 200. The door 210 is rotatably installed at the front end of the cabinet 200, and the door 210 is provided with an observation opening 211 so as to observe the condition of the drum 240, and the laundry can be put into the drum 240 or taken out of the drum 240 by opening the door 210. The panel 220 is provided with a material box 221, and the material box 221 is used for containing detergent and can automatically pour a proper amount of detergent into the drum 240 according to a washing mode. The adjusting foot 230 is used for supporting the box body 200, and the posture of the box body 200 can be kept horizontal by adjusting the adjusting foot 230. The drum 240 is used for accommodating laundry to be washed and can be rotated by the driving system 500. The cabinet 200 further includes a water level detector 250 for detecting the height of the water level in the drum 240 and transmitting the water level information to the main control system 300.

The main control system 300 is disposed in the box 200 and electrically connected to the waterway system 400 and the driving system 500, and the main control system 300 can control the waterway system 400 and the driving system 500 to be turned on or off. The water path system 400 includes a water inlet pipe 410 and a water outlet pipe 420, and the washing water enters the drum 240 through the water inlet pipe 410 and is discharged out of the drum 240 through the water outlet pipe 420. The driving system 500 includes a motor and a transmission mechanism, two ends of the transmission mechanism are respectively connected to the motor and the roller 240, and the motor drives the roller 240 to rotate through the transmission mechanism after being turned on.

The optical display module 100 is disposed on the panel 220, and the optical display module 100 and the panel 220 may be connected in various ways, such as a direct connection way or an indirect connection way. For example, it may be adhered to the panel 220, and as another example, it may be inlaid on the panel 220, and as another example, a spacer may be disposed between the panel 220 and the panel, that is, the optical display module 100 is mounted on the spacer, and the spacer is mounted on the panel 220, so that the optical display module 100 and the spacer may be mounted first, and then the spacer and the panel 220 are mounted, so as to ensure the mounting reliability of the optical display module 100.

In this embodiment, the outer wall of the panel 220 is provided with a mounting groove, and the optical display module 100 is disposed in the mounting groove. It can be understood that, by disposing the optical display module 100 in the mounting groove, the optical display module 100 no longer protrudes from the surface of the panel 220, which is more visually attractive. Further, the inner wall of the mounting groove has a fastening hole, and the outer wall of the optical display module 100 has a fastening hook matching with the fastening hole. The hooks and the holes have the advantages of simple structure and easy assembly, and the optical display module 100 and the panel 220 can be tightly connected through the matching of the hooks and the holes. In addition, the cost can be reduced while the connection strength between the optical display module 100 and the panel 220 is ensured.

The optical display module 100 may be connected to the main control system 300 of the air conditioner 1000 through the control module 5. The optical display module 100 can form an image in the air to form a floating real image 4, and a user can click the floating real image 4 to complete the control of the air conditioner 1000. It is understood that the optical display module 100 also includes a driving circuit and an input/output interface for connecting the above devices, which are omitted from the drawings.

The optical display module 100 includes an imaging module 20, a detection module 3 and a control module 5. The imaging module 20 is used for displaying the image of the optical display module 100 in the air. The detection module 3 may detect the interaction operation of the user to generate interaction information, and transmit the interaction information to the control module 5. The control module 5 determines the specific operation content of the user according to the internal instruction set and the interactive information, generates a corresponding control signal, and sends the control signal to the main control system 300, and the main control system 300 can control the washing machine to complete various operations, such as adjusting the washing time, the washing mode, and the like, according to the control signal. Meanwhile, the control module 5 transmits the operation interface or the control result corresponding to the control signal to the imaging module 20, and displays the image in the air through the imaging module 20, so that the user can conveniently operate the next step or know the control result.

As shown in fig. 3 and 4, the imaging module 20 includes an equivalent negative refractive optical element and a display 2, in an embodiment, the equivalent negative refractive optical element may be a flat lens 1, the display 2 is disposed on one side of the flat lens 1, after light emitted from the display 2 passes through the flat lens 1, a floating real image 4 opposite to the display 2 is formed on the other side of the flat lens 1, and it can be understood that an imaging position of the floating real image 4 in the air can be changed by adjusting positions of the display 2 and the flat lens 1. The detection module 3 is used for detecting the operation of the user on the floating real image 4 and feeding back the detected interactive signal to the control module 5. Specifically, the optical display module 100 may present the state information of the washing machine and the information such as the operation buttons displayed by the display 2 on the floating real image 4, so that the user can know the current state of the washing machine through the floating real image 4 and control the washing machine 1000 by clicking the virtual buttons of the floating real image.

In one embodiment, when a user desires to use the washing machine 1000, the door 210 is opened, laundry to be washed is put into the drum 240, and the door 210 is closed. Clicking the corresponding option button in the floating real image 4, detecting the interactive operation of the user by the detection module 3, feeding back the interactive information to the control module 5, and judging the cleaning mode selected by the user by the control module 5 according to the internal instruction set and the interactive information, thereby generating a corresponding control signal and sending the control signal to the master control system 300. After the main control system 300 receives the control signal, the main control system 300 controls the water path system 400 to open the water inlet pipe 410, and the washing water enters the drum 240 through the water inlet pipe 410. The water level detector 250 detects the water level in the drum 240 in real time and transmits water level information to the main control system 300, and when the main control system 300 finds that the water level in the drum 240 reaches the water level of the preset washing mode, the main control system 300 controls the waterway system 400 to close the water inlet pipe 410. The main control system 300 controls the material box 221 to pour a proper amount of detergent into the drum 240. Subsequently, the main control system 300 controls the driving system 500 to be turned on, and the motor of the driving system 500 rotates and drives the drum 240 to rotate through the transmission mechanism so as to start washing the laundry. In the process of washing the laundry, the main control system 300 controls the water path system 400 to open the water outlet pipe 420 according to the washing mode to drain the water in the drum 240. When the washing is completed, the user may open the door 210 to take the laundry out of the drum 240. Through the operation, the difficulty of controlling the washing machine 1000 can be reduced, the risks of accidental electric shock and the like of a user are reduced, the safety is higher, meanwhile, the non-contact operation is cleaner and more sanitary, and the pollution to the surface of the washing machine 1000 caused by the fact that the user touches the washing machine 1000 is avoided.

It is understood that the main control system 300 can complete other operation functions by the user clicking other interfaces or buttons of the floating real image 4, and is not limited to the function of selecting the cleaning mode. For example, the user may click the drying mode on the floating real image 4, and the main control system 300 may start the drying mode according to the control signal.

The structure and imaging principle of the flat lens according to the present invention will be described with reference to fig. 5 to 11, which will be described in detail below.

As shown in fig. 5 to 6, 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 interposed between the two transparent substrates 8. The first optical waveguide array 6 and the second optical waveguide array 7 are closely attached to each other on the same plane and are orthogonally arranged. Preferably, the first optical waveguide array 6 and the second optical waveguide array 7 are the same thickness, which facilitates design and production. Specifically, as shown in fig. 5, 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 2 side to the floating real image 4 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 excessive 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. 6, 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, namely, 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 are converged at one point, and the object image planes (the light source side and the imaging side) are 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. 7, 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 image forming 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. 8, 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 a 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 side or both sides of the arrangement direction of the reflection unit 9. Specifically, in the arrangement direction of the optical waveguide array, two sides of each reflection unit 9 are plated with a reflection film 10, and the material of the reflection film 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 rays from entering an adjacent optical waveguide array due to no total reflection to form stray light to influence imaging. Alternatively, each reflection element 9 may be formed by adding a dielectric film to the reflection film 10, and the dielectric film may improve 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, 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; or 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 light transmittance of the flat lens and improve the definition and brightness of the floating real image 4. The visual angle control component can be used for eliminating the afterimage of the floating real image 4, reducing the vertigo of an observer, preventing the observer from peeping into the device from other angles, and improving the overall attractiveness 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 imaging principle of the flat lens is explained below with reference to fig. 9 to 11, and the details are as follows.

On the micrometer scale, a mutually orthogonal double-layer waveguide array structure is used for orthogonal decomposition of arbitrary optical signals. 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 a 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 2, the floating real image is imaged at equal distance, and the floating real image is positioned in the air without a specific carrier but 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 2.

In the embodiment of the present invention, the light emitted from the light source of the display 2 passes through the flat lens 1, and the above process occurs on the flat lens 1. Specifically, as shown in fig. 10, the incident angles of the light rays on the first optical waveguide arrays 6 are α, respectively₁、α₂And alpha₃The reflection angle of the light on the first optical waveguide array 6 is beta₁、β₂And beta₃In which α is₁＝β₁，α₂＝β₂，α₃＝β₃After being reflected by the first optical waveguide array 6, the incident angles on the second optical waveguide array 7 are respectively gamma₁、γ₂And gamma₃The reflection angles at the second optical waveguide arrays 7 are respectively δ₁、δ₂And delta₃Wherein γ is₁＝δ₁，γ₂＝δ₂，γ₃＝δ₃。

Further, the incident angles after the convergent imaging are respectively alpha₁，α₂，α₃…..α_nWhen the distance between the light source of the display 2 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 viewing angle ∈ 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 2 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 is another demand for the imaging position, another angle may be selected at the expense of the partial imaging quality, and the flat lens 1 is preferably sized to display the screen of the floating real image 4 presented by the entire display 2. However, if only a part of the display 2 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, which is not limited in this respect.

In addition, the principle of imaging with the slab lens 1 adopting the double-layer optical waveguide array structure is mainly described above, but in other embodiments, if the plurality of cubic columnar reflection units 9 with the 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 one-layer optical waveguide array structure, that is, the two layers of optical waveguide arrays are combined into one layer, the imaging principle of the slab lens 1 may also be the same as that of the double-layer optical waveguide array structure.

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 the same in a relative range, and is not absolutely the same, 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.

According to some embodiments of the present invention, the imaging mode of the Display 2 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) arrays, projection, laser Diode, or any other suitable Display or stereoscopic Display, without limitation.

In an embodiment, the luminance of the display 2 may be set to not less than 500cd/m²Thereby reducing the effect of brightness loss in the optical path propagation. Of course, in practical application, the display brightness of the display 2 can 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 2, so that the ghost of the floating real image 4 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 3 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. The sensing area of the detection module 3 and the floating real image 4 are located on the same plane and comprise a three-dimensional space where the floating real image is located, an optimal sensing form can be selected according to an installation space, a viewing angle and a use environment, a user can conveniently operate the floating real image 4 in an optimal posture, and the sensitivity and the convenience of user operation are improved.

According to some embodiments of the present invention, the control module 5, the imaging module 20, and the detection module 3 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.

Description of the invention a contactless washing machine 1000 according to a second embodiment of the present invention is described with reference to fig. 12. The remaining configuration is the same as that of the first embodiment except for the difference in the structure of the optical display module 100, and thus, the repeated description of the same configuration with the same reference numerals will be omitted.

The structure of the optical display module 100 is characterized in that a total reflection mirror 12 is added on the side of the flat lens 1 where the display 2 is located. Light emitted by the display 2 is reflected by the total reflection mirror 12, enters the flat lens 1, and finally converges on the other side of the flat lens 1, so that a floating real image 4 is formed. The function and structure of the detection module 3 and the control module 5 are the same as those of the first embodiment.

It can be seen that, in this embodiment, after the light of the display 2 is reflected by the total reflection mirror 12, a virtual image 13 that is as large as the display 2 and is plane-symmetric with respect to the total reflection mirror 12 is equivalently formed on the other side of the total reflection mirror 12, and the floating real image 4 is actually mirror-symmetric with respect to the flat lens 1 with the virtual image 13. Preferably, the included angle between the flat lens 1 and the virtual image 13 is set to be in the range of 45 ° ± 5 °, so that the size of the flat lens 1 can be more fully utilized, and simultaneously, better imaging quality and smaller afterimage influence are obtained. But other angles may be chosen at the expense of partial imaging quality if there are other requirements on the imaging position. It is also preferable that the size of the flat lens 1 and the total reflection mirror 12 is set so that the user can see the picture of the aerial image 4 presented by the entire display 2 at a glance, but if it is necessary to see only a part of the content of the display 2 in actual use, the size and position of the flat lens 1 can be freely adjusted according to the actual display picture.

The effect of this embodiment is that the orientation of the display screen in the display 2 can be changed, and the display 2 can be disposed closer to the flat lens 1, and under the condition that the distance between the floating real image 4 and the flat lens 1 is not changed, the overall thickness of the optical display module 100 is significantly reduced, so as to be better integrated into the contactless washing machine 1000.

It is understood that a plurality of total reflection mirrors 12 (not shown) may be disposed in the optical display module 100, and the light of the display 2 is reflected therein for a plurality of times to form a virtual image farther away from the flat lens 1, so as to further reduce the thickness of the optical display module 100.

A contactless washing machine 1000 according to a third embodiment of the present invention will be described with reference to fig. 13. The remaining configuration is the same as that of the first embodiment except for the difference in the structure of the optical display module 100, and thus, the repeated description of the same configuration with the same reference numerals will be omitted.

The optical display module 100 is characterized in that a retro-reflector 14 is used to replace the flat lens 1, and a beam splitter 15 is added to reconverge the light from the display 2 in the air to present a floating real image 4.

Specifically, the imaging principle of the present embodiment is as follows:

light emitted from the display 2 is first reflected by the beam splitter 15 to the surface of the retro-reflector 14, and the beam splitter 15 is a beam splitter that is semi-transparent to visible light, i.e., has characteristics of 50% transmittance and 50% reflectance with respect to visible light. When this portion of the light is incident on the surface of the retro-reflector 14, it is reflected again by the microstructures inside the retro-reflector 14 and the reflected light is returned from a direction opposite to that of the incident light, at which time the reflected light is transmitted through the beam splitter 15, thereby forming a floating real image 4 in the air in a position where the display 2 is plane-symmetric with respect to the beam splitter 15.

The beam splitter 15 is used to split a light beam into two light beams, one light beam is transmitted and the other light beam is reflected, and is made of a metal film or a dielectric film, and the ratio of reflection to transmission is about 1:1 in the embodiment, which can be classified into a polarized type and a non-polarized type in principle.

The retro-reflector 14 has a retro-reflection effect on its surface, which reflects incident light from a direction close to the opposite direction of its incident direction, and is covered with micro glass beads or micro prism structures, which refracts and reflects incident light through internal microstructures, so that light exits in the opposite direction of the incident direction. Since the structure of the retro-reflector 14 is relatively conventional, it will not be described herein in more detail.

Furthermore, according to some embodiments of the present invention, 1/4 wave plate 16 may be disposed on the surface of the retro-reflector 14, if the light emitted from the display 2 is linearly polarized, reflected by the polarizing beam splitter 15, then enters the retro-reflector 14 through 1/4 wave plate 16, and the reflected light returns from the opposite direction to the incident light and passes through 1/4 wave plate 16 again, at which time the polarization plane of the linearly polarized light emitted from the display 2 is rotated by 90 degrees, so that it can be emitted from the polarizing beam splitter 15 and converged into a floating image 4 in the air. The method can greatly improve the energy utilization rate of the light of the display 2 and reduce the light intensity loss, thereby improving the brightness of the floating real image 4. It will be appreciated that if the display 2 is sufficiently bright, or if the light emitted by the display 2 is not linearly polarized, a non-polarizing beam splitter 15 may be used without 1/4 wave plate 16.

In a second aspect embodiment of the present invention, a method of operating a contactless washing machine is provided, as shown in fig. 14, the method of the embodiment of the present invention includes at least steps S1-S3.

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

In order to solve the problems of inconvenient operation and hidden health hazard in touch operation of the existing washing machine, the embodiment of the invention adopts an interactive aerial imaging technology, and the aerial imaging module 20 forms the floating real image 4 at the aerial determined position. Specifically, the display 2 of the aerial imaging module 20 displays screen information, which may include status information, operation buttons, and the like. After the screen information displayed by the display 2 passes through the flat lens 1, a floating real image 4 is formed in the air, and the floating real image 4 can present the screen of the display 2. It is understood that the imaging position of the floating real image 4 in the air can be changed by adjusting the positions of the display 2 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 4 generated by adopting the interactive aerial imaging technology is relatively fixed in the air, a user can directly click the picture information in the floating real image 4 for operation, the detection module can detect the interactive operation of clicking the floating real image 4 by the user and the like, so as to obtain the interactive information, and the interactive information is sent to the control module.

In step S3, a control command is generated based on the mutual information.

In the embodiment, the control module 5 processes and analyzes the acquired interactive information by combining with an internal instruction set, determines the specific operation content of the user, generates a corresponding control signal, and sends the control signal to the main control system of the washing machine, and the main control system can control the washing machine to operate according to the control signal so as to fulfill the operation purpose of the user.

In one embodiment, when the control signal is the preset cleaning mode, the main control system controls the waterway system to open the water inlet pipe, and the washing water enters the drum through the water inlet pipe. The water level detector detects the water level in the roller in real time and sends the water level to the main control system, and when the main control system finds that the water level in the roller reaches the water level of a preset cleaning mode, the main control system controls the waterway system to close the water inlet pipe. The main control system controls the material box to pour a proper amount of detergent into the drum. And then, the main control system controls the driving system to be started, and the motor of the driving system rotates and drives the roller to rotate through the transmission mechanism so as to start washing the clothes. In the process of washing clothes, the main control system can control the waterway system to open the water outlet pipe according to the washing mode in time so as to discharge water in the drum. After the washing is finished, the user can open the door body to take the clothes out of the drum.

According to the method for operating the non-contact washing machine, the floating real image 4 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 picture information in the floating real image 4, when the user operation information is detected, the detection module 3 detects the interactive operation, so that the interactive information of the user is obtained, the control module 5 processes and analyzes the obtained interactive information by combining with an internal instruction set, specific operation content of the user is judged, a corresponding control signal is generated, the control signal is sent to the main control system of the washing machine, and the main control system can control the washing machine to operate according to the control signal, so that the operation purpose of the user is completed. By the method, the operation mode of a user can be more convenient and visual, the user is prevented from contacting the washing machine body during operation, the risks of accidental electric shock and the like of the user are reduced, the safety is higher, meanwhile, the non-contact operation is cleaner and more sanitary, and the pollution to the surface of the washing machine caused by the fact that the user touches the washing machine is avoided.

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 of 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., an ordered listing of executable instructions that can be considered to implement logical functions, can 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 can 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 portable 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: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

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 related to instructions of a program, which may 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 is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, 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 expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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. Furthermore, various embodiments or examples and features of different 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. A contactless washing machine, characterized by comprising:

a cabinet in which a drum for accommodating laundry is disposed;

a panel mounted on the case;

a main control system which can control the drum to rotate to wash the clothes;

the optical display module assembly, the optical display module assembly sets up on the panel and with major control system links to each other, the optical display module assembly includes: the device comprises an imaging module, a detection module and a control module, wherein the imaging module is used for forming a floating real image in the air, the detection module is used for detecting the operation of a user on the floating real image and feeding back a detected interaction signal to the control module, and the control module generates a corresponding control signal according to the interaction signal and sends the control signal to a main control system.

2. The non-contact washing machine as claimed in claim 1, further comprising a water path system including a water inlet pipe through which the washing water enters the drum and an outlet pipe from which the washing water is discharged.

3. The non-contact washing machine as claimed in claim 2, wherein a water level detector is further provided in the cabinet to detect a water level of the washing water in the drum and transmit the water level information to the main control system.

4. The contactless washing machine according to claim 1, wherein the imaging module includes 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 light emitted from the display passes 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.

5. The contactless washing machine according to claim 4, wherein the equivalent negative refractive index optical element includes: 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.

6. The non-contact washing machine as claimed in claim 5, wherein the first or second light guide array is composed of a plurality of parallel arranged reflection units arranged obliquely at 45 °, the reflection units having a rectangular cross section, and reflection films are provided along the same side or both sides of the lamination direction of the reflection units.

7. The non-contact washing machine as claimed in claim 5, wherein the reflection unit has cross-sectional widths a and b satisfying: 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.

8. The contactless washing machine according to claim 4, wherein the equivalent negative refractive 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.

9. The contactless washing machine according to claim 8, wherein the equivalent negative refractive index optical element further comprises an anti-reflection part and a viewing angle control part, the anti-reflection part and the viewing angle control part being 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.

10. The non-contact washing machine as claimed in claim 9, wherein an adhesive is disposed between the first light waveguide array and the second light waveguide array, between the first light waveguide array and the adjacent transparent substrate, and between the second light waveguide array and the adjacent transparent substrate.

11. The contactless washing machine according to claim 4, wherein the optical display module further comprises: the total reflector is arranged on one side of the equivalent negative refractive index optical element and arranged on the same side of the display so as to reflect light rays emitted by the display to the equivalent negative refractive index optical element.

12. The contactless washing machine according to claim 4, wherein the equivalent negative refractive index optical element includes: a retro-reflector and a beam splitter, the retro-reflector and the display being located on a same side of the beam splitter and the beam splitter reflecting light from the display to the retro-reflector, the beam splitter transmitting light from the retro-reflector.

13. A contactless washing machine according to claim 12, wherein the surface of the retro reflector is provided with 1/4 wave plates.

14. A method of operating a contactless washing machine, characterized by comprising:

providing an aerial floating real image;

detecting interaction operation to obtain interaction information;

and generating a control instruction according to the interactive information.

15. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of the contactless washing machine of claim 14.