CN217157267U

CN217157267U - Non-contact control device and ordering machine

Info

Publication number: CN217157267U
Application number: CN202221033209.4U
Authority: CN
Inventors: 韩村; 吴晓峰
Original assignee: Anhui Easpeed Technology Co Ltd
Current assignee: Anhui Easpeed Technology Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-09
Anticipated expiration: 2032-04-29

Abstract

The application provides a non-contact control device, which is applied to a food ordering machine, wherein the food ordering machine comprises a main control system, and the device is in communication connection with the main control system and comprises a bracket, an equivalent negative refractive index optical element, a display and an interaction sensor; the display is fixedly arranged on one side of the bracket and used for displaying a corresponding display picture according to the display data output by the main control system; the equivalent negative refractive index optical element is fixedly arranged on the other side of the support and is arranged at a preset angle relative to the display, and a floating real image corresponding to a display picture is formed on one side of the equivalent negative refractive index optical element, which is opposite to the display; the interactive sensor is fixedly arranged on the support and used for detecting the interactive operation of the user on the floating real image, generating an interactive operation signal and feeding the interactive operation signal back to the main control system. The application also provides an ordering machine. The non-contact interaction mode can avoid the risk of bacterial and virus infection caused by physical contact.

Description

Non-contact control device and ordering machine

Technical Field

The application relates to the technical field of intelligent equipment, in particular to a non-contact control device and an ordering machine.

Background

With the emergence of new crown epidemic situations, aerial imaging technology based on negative refraction plate lenses is beginning to be applied to the field of public facilities. The technology applies the light field reconstruction principle to reconverge the scattered light rays in the air, thereby forming a real image which does not need to be carried by a medium. The system combines an interactive control technology, can realize direct interaction between people and aerial real images, is stable, safe and reliable in use process, achieves the purposes of cutting off pollution sources and preventing cross infection, is safer and has more future science and technology sense.

In the conventional art, a user generally controls a common device, such as a meal order machine, by contacting the common device using limbs. When a user orders, due to the fact that the user directly contacts the touch screen or the manual button of the ordering machine to cause cross infection, the infection probability of viruses is increased, dirt and oil stain left on the touch screen by other users are easily contaminated, the cleaning is quite inconvenient, in addition, the ordering machine users are numerous, the touch screen or the manual button is easily damaged by limb contact operation, and the service life of the touch screen or the manual button of the ordering machine is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a non-contact control device and a food ordering machine, which aim to solve the problems of virus propagation and cross infection caused by touching the physical keys and the touch screen during food ordering.

In a first aspect, an embodiment of the present application provides a non-contact control device, which is applied to an ordering machine, where the ordering machine includes a main control system, the non-contact control device is in communication connection with the main control system, and the non-contact control device includes a bracket, an equivalent negative refractive index optical element, a display, and an interaction sensor; the display is fixedly arranged on one side of the bracket and used for displaying a corresponding display picture according to the display data output by the main control system; the equivalent negative refractive index optical element is fixedly arranged on the other side of the support and is arranged at a preset angle relative to the display, and a floating real image corresponding to the display picture is formed on one side of the equivalent negative refractive index optical element, which is opposite to the display; the interaction sensor is fixedly arranged on the support and used for detecting interaction operation of a user on the floating real image, generating an interaction operation signal and feeding the interaction operation signal back to the main control system.

In an embodiment, the non-contact control device further includes a fixing frame fixed on one side of the bracket, and the equivalent negative refractive index optical element is mounted on the fixing frame.

In an embodiment, the non-contact control device further includes a fixing plate, the fixing plate is fixedly disposed on the other side of the bracket, and the fixing plate is fixedly connected to the display and is used for fixing the display.

In an embodiment, the equivalent negative refractive index optical element includes a flat lens, the display is disposed on one side of the flat lens, and after light emitted by the display enters the flat lens, a floating real image corresponding to the display screen is formed on the other side of the flat lens.

In an embodiment, the flat lens includes a first optical waveguide array and a second optical waveguide array formed by stacking a plurality of reflection units, and the first optical waveguide array and the second optical waveguide array are closely attached to each other on the same plane and are distributed orthogonally.

In an embodiment, the first optical waveguide array or the second optical waveguide array is composed of a plurality of reflection units arranged in parallel and obliquely, and the cross section of each reflection unit is rectangular.

In an embodiment, the equivalent negative refractive index optical element further includes two transparent substrates, and the first optical waveguide array and the second optical waveguide array are disposed between the two transparent substrates.

In one embodiment, the predetermined angle is greater than or equal to 40 degrees and less than or equal to 50 degrees.

In a second aspect, an embodiment of the present application further provides a food ordering machine, including a main control system and the non-contact control device according to the first aspect, where the main control system is in communication connection with the non-contact control device, and the main control system is configured to control the food ordering machine to execute a corresponding food ordering operation according to the interactive operation signal sent by the interactive sensor of the non-contact control device.

In an embodiment, the food ordering machine further includes a body and a base, the body is fixedly disposed on the base, the body is provided with an accommodating cavity, and the non-contact control device is mounted in the accommodating cavity.

The non-contact control device and the ordering machine provided by the embodiment of the application realize that the touch floating real image controls the ordering machine to execute the ordering operation by adding the non-contact control device on the ordering machine, reduce the risk of virus propagation and cross infection caused by controlling the ordering machine in a non-contact type transaction mode, are more sanitary and safer when the ordering machine is used, and prolong the service life of the ordering machine.

Drawings

Fig. 1 is an exploded schematic view of a contactless control device according to an embodiment of the present application.

Fig. 2 is a system framework diagram of the food ordering machine according to an embodiment of the present application.

Fig. 3 is a schematic view of an interaction structure of a contactless control device according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a planar lens according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present application.

Fig. 6 is an exploded view of the food ordering machine according to an embodiment of the present application.

Description of the main elements

Food ordering machine 100

Non-contact control device 10

Master control system 20

Support 11

Outer casing 111

Protective film 112

Fixing member 113

Equivalent negative refractive index optical element 12

Plate lens 121

First optical waveguide array 122

Second optical waveguide array 123

Transparent substrate 124

Reflection unit 125

Display 13

Interaction sensor 14

Floating real image 15

Mounting plate 16

Mounting groove 161

Fixed frame 17

Fixing plate 18

Drive circuit 19

Body 30

Accommodation chamber 31

Base 40

First direction X _d

Second direction Y _d

Third direction Z _d

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such 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, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Embodiments of the present application will now be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to fig. 2, an embodiment of the present application provides a contactless control device 10, which is applied to an ordering machine 100, where the ordering machine 100 includes a main control system 20, and the contactless control device 10 is in communication connection with the main control system 20.

Specifically, the non-contact control device 10 includes a support 11, an equivalent negative refractive index optical element 12, a display 13, and an interaction sensor 14. The display 13 is fixedly disposed on one side of the support 11, and is configured to display a corresponding display image according to the display data output by the main control system 20. The equivalent negative refractive index optical element 12 is fixedly arranged on the other side of the bracket 11 and is arranged at a preset angle relative to the display 13, and a floating real image 15 corresponding to a display picture is formed on one side of the equivalent negative refractive index optical element 12 opposite to the display 13. The interactive sensor 14 is fixedly arranged on the bracket 11, and is used for detecting the interactive operation of the user on the floating real image 15, generating an interactive operation signal, and feeding back the interactive operation signal to the main control system 20.

In this embodiment, the contactless control device 10 further includes a mounting plate 16, the mounting plate 16 is fixed on the bracket 11, a mounting groove 161 is provided on the mounting plate 16, and the interaction sensor 14 is mounted in the mounting groove 161 to fix the interaction sensor 14.

In an embodiment, the non-contact control device 10 further includes a fixing frame 17, the fixing frame 17 is fixedly disposed on one side of the bracket 11, and the equivalent negative refractive index optical element 12 is mounted on the fixing frame 17 to fix the equivalent negative refractive index optical element 12, so as to ensure the stability of the floating real image 15.

In an embodiment, the non-contact control device 10 further includes a fixing plate 18, the fixing plate 18 is fixedly disposed on the other side of the bracket, and the fixing plate 18 is fixedly connected to the display 13 for fixing the display 13.

In this embodiment, the non-contact control device further includes a driving circuit 19, the driving circuit 19 is disposed on a side of the fixing plate opposite to the display 13, one end of the driving circuit 19 is electrically connected to the interaction sensor 14, and the other end of the driving circuit 19 is electrically connected to the main control system 20, so as to feed back the interaction operation signal to the main control system 20.

In one embodiment, the predetermined angle is greater than or equal to 40 degrees and less than or equal to 50 degrees. Preferably, the included angle between the equivalent negative refractive index optical element 12 and the display 13 can be set to 45 degrees, so that the size of the equivalent negative refractive index optical element 12 can be more fully utilized, and meanwhile, better imaging quality and smaller afterimage influence are obtained. Other angles may also be selected at the expense of partial imaging quality if there are other requirements for the imaging location.

In this embodiment, the outer portion of the bracket 11 is further provided with a housing 111 and a protective film 112, the protective film is covered on the housing 111, the housing 111 is fixedly sleeved on the bracket 11 through a fixing member 113, the fixing member 113 penetrates through the bracket 11 and the housing 111 to fix the housing 111 on the bracket 11, for example, the fixing member may be a screw or the like.

In an embodiment, in order to ensure the stability of the floating real image 15 generated by the non-contact control device 10 in the above embodiment, the support 11 may have a triangular prism structure, so as to better fit the ordering machine 100 while ensuring the stability of the floating real image 15.

Further referring to fig. 3 to 5, the equivalent negative refractive index optical element 12 may be a flat lens 121, a display 13 is disposed on one side of the flat lens 121, and after light emitted from the display 13 enters the flat lens 121, a floating real image 15 corresponding to a display screen is formed on the other side of the flat lens 121.

In an embodiment, the flat lens 121 includes a first optical waveguide array 122 and a second optical waveguide array 123 formed by stacking a plurality of reflection units 125, and the first optical waveguide array 122 and the second optical waveguide array 123 are closely attached to each other on the same plane and are orthogonally distributed.

In one embodiment, the equivalent negative refractive index optical element 12 further includes two transparent substrates 124, and the first optical waveguide array 122 and the second optical waveguide array 123 are disposed between the two transparent substrates 124.

In the embodiment, the thicknesses of the first optical waveguide array 122 and the second optical waveguide array 123 are the same, so that the complexity of the structures of the first optical waveguide array 122 and the second optical waveguide array 123 can be simplified, the manufacturing difficulty of the first optical waveguide array 122 and the second optical waveguide array 123 can be reduced, the production efficiency of the first optical waveguide array 122 and the second optical waveguide array 123 can be improved, and the production cost of the first optical waveguide array 122 and the second optical waveguide array 123 can be reduced. It should be noted that the same thickness here is 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 on the premise of not affecting the aerial imaging quality.

Wherein, the two transparent substrates 124 respectively have two optical surfaces, and the transparent substrate 124 has a transmittance of 90% -100% for light with a wavelength between 390nm and 760 nm. The material of the transparent substrate 124 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 122 and the second optical waveguide array 123 are bonded to each other in an orthogonal manner is sufficient, or the installation environment has a thickness limitation, only one transparent substrate 124 may be provided, or no transparent substrate 124 may be provided.

In an embodiment, the first optical waveguide array 122 or the second optical waveguide array 123 is composed of a plurality of reflective units 125 arranged in parallel and arranged obliquely, and the cross section of the reflective unit 125 is rectangular.

Preferably, the first optical waveguide array 122 may be composed of reflecting units 125 arranged side by side at 45 degrees in the left-and-bottom direction and having a rectangular cross section, the second optical waveguide array 123 may be composed of reflecting units 125 arranged side by side at 45 degrees in the right-and-bottom direction and having a rectangular cross section, and the arrangement directions of the reflecting units 125 in the two optical waveguide arrays may be interchanged. For example, the extending direction of the reflection unit 125 in the first optical waveguide array 122 is the second direction Y _d The extension of the reflection unit 125 of the second optical waveguide array 123In a first direction X _d In a third direction Z _d In the thickness direction of the optical waveguide array, from a third direction Z _d When viewed in the direction, the first optical waveguide array 122 and the second optical waveguide array 123 are orthogonally arranged, so that two light beams in the orthogonal direction converge at one point, and the object image planes (the light source side and the image forming side) are ensured to be symmetrical relative to the flat lens 121, an equivalent negative refraction phenomenon is generated, aerial imaging is realized, and namely, a floating real image 15 is generated. Wherein the optical waveguide material has an optical refractive index n1, in some embodiments n1>1.4, for example, n1 takes on values of 1.5, 1.8, 2.0, etc.

For a better understanding of the principles underlying the present application, the above embodiments are incorporated in the explanation of the aerial image distancing: 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 122, a rectangular coordinate system is established by taking the projection point of the original signal as the origin and taking the direction perpendicular to the first optical waveguide array 122 as the X axis, and the original signal is decomposed into two paths of mutually orthogonal signals of a signal X1 positioned on the X axis and a signal Y1 positioned on the Y axis in the rectangular coordinate system. When the signal X1 passes through the first optical waveguide array 122, it is totally reflected at the same reflection angle as the incident angle; at this time, the signal Y1 remains parallel to the first optical waveguide array 122, and after passing through the first optical waveguide array 122, it is totally reflected on the surface of the second optical waveguide array 123 at the same reflection angle as the incident angle, and the reflected optical signal composed of the reflected signal Y1 and the signal X1 becomes mirror symmetry with the original optical signal. Therefore, the light rays in any direction can realize mirror symmetry through the flat lens 121, the divergent light of any light source can be converged into the floating real image 15 again at the symmetrical position through the flat lens 121, the imaging distance of the floating real image 15 is the same as the distance from the flat lens 121 to the image source, namely the display 13, and the floating real image 15 is imaged at equal distance, and the floating real image 15 is positioned in the air, and does not need a specific carrier, but directly presents a real image in the air. Therefore, the image in the space viewed by the user is the image displayed on the display 13.

In an embodiment, the image pattern of the Display 13 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, and other suitable displays or stereoscopic displays, without limitation.

In one embodiment, the interaction sensor 14 may be a near-far 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 interaction sensor 14 includes, but is not limited to, far and near infrared, ultrasonic, laser interference, grating, encoder, fiber optic, or CCD (charge coupled device), etc. The sensing area of the interactive sensor 14 and the floating real image 15 are located on the same plane and include a three-dimensional space where the floating real image 15 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 15 in an optimal posture, and the sensitivity and convenience of user operation are improved.

Further referring to fig. 6, an ordering machine 100 is further provided in this embodiment of the present application, which includes a main control system 20 and the contactless control device 10 as in the above embodiment, the main control system 20 is connected in communication with the contactless control device 10, and the main control system 20 is configured to control the ordering machine 100 to perform a corresponding ordering operation according to an interaction operation signal sent by the interaction sensor 14 of the contactless control device 10.

In one embodiment, the main control system 20 can be connected to the contactless control device 10 in a wired or wireless manner to transmit digital or analog signals, so that the size of the contactless control device 10 can be flexibly controlled, and the electrical stability of the contactless control device 10 can be enhanced.

In an embodiment, the food ordering machine 100 further includes a body 30 and a base 40, the body 30 is fixed on the base 40, the body has a receiving cavity 31, and the non-contact control device 10 is installed in the receiving cavity 31.

In the present embodiment, the food ordering machine 100 includes two identical contactless control devices 10, and the two contactless control devices 10 are disposed in parallel and opposite to each other in the accommodating cavity 31, so as to increase the operational applicability of the food ordering machine 100.

Specifically, when the food ordering machine 100 is used, a user clicks a control button icon displayed in the floating real image 15, the interaction sensor 14 detects an interaction operation of the user on the floating real image 15, generates an interaction operation signal in which the control button icon is ordered, and feeds the interaction operation signal back to the main control system 20, and the main control system 20 receives the interaction operation signal to control the food ordering machine 100 to perform various operations, including but not limited to controlling the main control system 20 in the food ordering machine 100 to realize a display screen of the display 13, controlling the closing and starting of the display 13 in the food ordering machine 100, inquiring about a commodity selected by the food ordering machine 100 and accounting conditions, and the like.

According to the food ordering machine 100, the non-contact control device 10 is additionally arranged on the food ordering machine 100, the floating real image 15 is touched to control the food ordering machine 100 to execute food ordering operation, the risk of virus propagation and cross infection caused by the operation and control of the food ordering machine 100 is reduced due to a non-contact type food ordering mode, the food ordering machine 100 is more sanitary and safer in use, and the service life of the food ordering machine 100 is prolonged.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Although the present application has been described in detail with reference to preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present application.

Claims

1. A non-contact control device is applied to a food ordering machine, the food ordering machine comprises a main control system, and the non-contact control device is in communication connection with the main control system, and the non-contact control device is characterized by comprising a bracket, an equivalent negative refractive index optical element, a display and an interaction sensor;

the display is fixedly arranged on one side of the bracket and used for displaying a corresponding display picture according to the display data output by the main control system;

the equivalent negative refractive index optical element is fixedly arranged on the other side of the support and is arranged at a preset angle relative to the display, and a floating real image corresponding to the display picture is formed on one side of the equivalent negative refractive index optical element, which is opposite to the display;

the interaction sensor is fixedly arranged on the support and used for detecting interaction operation of a user on the floating real image, generating an interaction operation signal and feeding the interaction operation signal back to the main control system.

2. The contactless control device according to claim 1, further comprising a fixing frame fixedly provided on one side of the holder, wherein the equivalent negative refractive index optical element is mounted to the fixing frame.

3. The non-contact control device as claimed in claim 2, further comprising a fixing plate fixed to the other side of the bracket, wherein the fixing plate is fixedly connected to the display for fixing the display.

4. The contactless control device according to claim 1, wherein the equivalent negative refractive-index optical element includes a flat lens, the display is disposed on one side of the flat lens, and after light emitted from the display enters the flat lens, a floating real image corresponding to the display screen is formed on the other side of the flat lens.

5. The contactless control device according to claim 4, wherein the flat lens includes a first optical waveguide array and a second optical waveguide array formed by stacking a plurality of reflection units, and the first optical waveguide array and the second optical waveguide array are closely attached to each other in the same plane and are orthogonally distributed.

6. The contactless control device according to claim 5, wherein the first optical waveguide array or the second optical waveguide array is composed of a plurality of reflection units arranged in parallel and arranged obliquely, and the cross section of the reflection unit is rectangular.

7. The contactless control device of claim 5, 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.

8. The contactless control device according to claim 1, wherein the preset angle is 40 degrees or more and 50 degrees or less.

9. A food ordering machine, comprising a main control system and the non-contact control device as claimed in any one of claims 1 to 8, wherein the main control system is in communication connection with the non-contact control device, and the main control system is configured to control the food ordering machine to execute a corresponding food ordering operation according to the interaction operation signal sent by the interaction sensor of the non-contact control device.

10. The food ordering machine as claimed in claim 9, further comprising a body and a base, wherein the body is fixedly arranged on the base, the body is provided with an accommodating cavity, and the non-contact control device is arranged in the accommodating cavity.