Learning machine
By using a mirror in the learning machine to reflect the light of the identification code to the position of the camera module, combined with the rotatable placement slot design, the problem of the existing learning machine's tall and inconvenient body is solved, and more efficient space compression and portability are achieved.
Patent Information
- Application Number
- CN202421742278.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-22
AI Technical Summary
Due to the design limitations of the camera module, the existing learning machines have a tall, inconvenient body, and are difficult to compatible with the use of thick books.
The reflector is used to reflect the light of the identification code to the position of the camera module, and the camera module is flexibly set up, and combined with the rotatable placement groove design, a folded light path is formed to compress the body space.
It realizes flexible settings of the camera module, reduces the height of the body, improves portability and aesthetics, and is compatible with the use of thick books.
Smart Images
Figure CN222801275U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of learning machines, and in particular to a learning machine. Background Art
[0002] Enlightenment devices such as learning machines and thinking machines are designed to help children learn and think better. Compared with traditional learning methods, enlightenment devices are usually equipped with educational resources such as learning cards, and use more media (such as playing audio and video corresponding to educational resources) to stimulate children's learning interest and creativity.
[0003] At present, enlightenment devices may use books (i.e. multiple stacked cards or papers) as supporting materials, and the thickness of books is usually not negligible. Therefore, the camera often protrudes high above the book placement area, which is inconvenient for the design and production of the learning machine. At the same time, the larger body size will also affect the portability and aesthetics of the learning machine. Summary of the invention
[0004] In order to overcome the problems existing in the related art, the present disclosure provides a learning machine.
[0005] A first aspect of the present disclosure provides a learning machine, the learning machine comprising:
[0006] a plurality of learning cards, at least one surface of the learning cards comprising an identification code;
[0007] A body, wherein the body is provided with a first placement slot, a camera module arranged at one side of the first placement slot, and a reflector opposite to both the first placement slot and the camera module;
[0008] Among them, the learning card is used to be placed in the first placement slot and make the identification code face the reflector, and the camera module is used to identify the identification information of the identification code based on the image formed by the identification code in the reflector when the identification code faces the reflector.
[0009] Optionally, the angle between the surface of the reflector and the bottom surface of the first placement groove is zero angle or an acute angle.
[0010] Optionally, the body further includes a second placement slot disposed on a side of the first placement slot away from the camera module, and the learning card is further used to be placed in the second placement slot.
[0011] Optionally, the sides of the plurality of learning cards are connected to each other, and the plurality of learning cards connected to each other form an open page on one side and an open page on the other side when opened;
[0012] The first placement slot is used for placing the pages on one side, and the second placement slot is used for placing the pages on the other side.
[0013] Optionally, the first placement slot and the second placement slot are rotatably connected;
[0014] When the first placement groove and the second placement groove are rotated to a closed state, their opening directions are opposite to each other and they are attached to each other to form an accommodating space.
[0015] Optionally, the body further includes a control unit, which is communicatively connected to the camera module and is used to determine the audio information and answer information of the question corresponding to the identification information according to the identification information of the identification code.
[0016] Optionally, the body is provided with a touch module below the first placement slot, for collecting touch information, wherein the touch information includes one touch point information, multiple touch point information or touch track information;
[0017] The control unit is in communication connection with the touch module, and is used to determine answer result information according to the answer information and the touch information.
[0018] Optionally, the touch module includes a capacitive touch module.
[0019] Optionally, the answer result information includes answer result information in audio form;
[0020] The body also includes a speaker, which is communicatively connected to the control unit and is used to play the question audio information and the answer result information.
[0021] Optionally, the identification code includes at least one of the following: an OID identification code, a QR code, or text.
[0022] Optionally, the learning machine is a learning machine or a thinking machine.
[0023] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:
[0024] In the disclosed embodiment, the learning machine includes: a plurality of learning cards, at least one surface of the learning card includes an identification code; a machine body, the machine body is provided with a first placement slot, a camera module provided on one side of the first placement slot, and a reflector opposite to both the first placement slot and the camera module; wherein the learning card is used to be placed in the first placement slot and the identification code is opposite to the reflector, and the camera module is used to identify the identification information of the identification code based on the image formed by the identification code in the reflector when the identification code is opposite to the reflector. It can be seen that, compared with the solution in which the camera module directly illuminates the identification position, the above-mentioned embodiment uses a lens for reflection, so the setting position of the camera module can be more flexible, which is convenient for the design and production of the learning machine; at the same time, the folded light path can also compress the space occupied in a single direction, thereby greatly compressing the body volume without affecting the function and compatibility with the thickness of the book, thereby improving the portability and aesthetics of the learning machine.
[0025] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0027] Figure 1 is a schematic diagram of a book shown in some exemplary embodiments.
[0028] Figure 2 is a cross-sectional view of a learning machine shown in some exemplary embodiments.
[0029] Figure 3 is a schematic diagram of a camera module and a reflector shown in some exemplary embodiments.
[0030] Figure 4 is a schematic diagram of a learning machine shown in some exemplary embodiments.
[0031] Figure 5 1 and 2 are three-view drawings of a learning machine shown in some exemplary embodiments.
[0032] Figure 6 is a schematic diagram of another learning machine shown in some exemplary embodiments.
[0033] Figure 7 It is a hardware structure diagram of an electronic device shown in some exemplary embodiments. DETAILED DESCRIPTION
[0034] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of learning machines consistent with some aspects of the present disclosure as detailed in the appended claims. In addition, the terms used in the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure.
[0035] Enlightenment devices such as learning machines and thinking machines are designed to help children learn and think better. Compared with traditional learning methods, enlightenment devices are usually equipped with educational resources such as learning cards, and use more media media (such as playing audio and video corresponding to educational resources) to stimulate children's learning interest and creativity. Enlightenment devices usually have matching physical learning cards and store media content corresponding to the learning cards. The media transmission component installed on the enlightenment device can use at least one media medium (sound, image, supplementary text, etc.) to present the media content corresponding to the learning card to the user.
[0036] At present, relevant technologies usually adopt a card-type interaction method. Specifically, it is mostly reflected in inserting a learning card into a designated interactive area, and using a sensor to identify the printed identification area of the learning card. When the interaction process involves multiple learning cards, it is necessary to frequently replace the learning cards, which is cumbersome to operate. At the same time, in the application scenario of story narration or when using multiple learning cards with a sequential relationship, it is very easy to cause confusion in the order of the learning cards and a poor user experience.
[0037] In view of this, the present disclosure provides a learning machine that can adapt to multiple learning cards. In the present disclosure, multiple learning cards can be in a bulk state (and due to the effect of gravity, when multiple learning cards in such a bulk state are placed on the learning machine, they can present a book-like shape and have a virtual rotating shaft), or, one side of each learning card in the multiple learning cards can be connected to a rotating shaft or bound together, so that the multiple learning cards present a book-like state (that is, the sides of the multiple learning cards are connected to each other); in the following text of the present disclosure, "multiple learning cards" will be referred to as "books". Please refer to Figure 1 , which exemplarily shows a double-page book in an open state, wherein one side open page and the other side open page respectively refer to two parts divided by the spine (i.e., the rotating shaft or binding part, etc.) in the open state of the book (i.e., the multiple learning cards connected to each other form one side open page and the other side open page in the open state), and the papers (learning cards) on these two parts can be flipped and transferred from one side of the two side open pages to the other side, thereby presenting different page contents to the user.
[0038] As an exemplary product form, the learning machine in the embodiments of the present disclosure may be a thinking machine. A thinking machine, also known as a card machine, is a tool designed specifically for children's enlightenment education and can be regarded as a specialized learning machine. Its appearance is usually small, easy to carry, and low in price, so it usually does not have a high-resolution display function. Children can insert learning cards printed with various patterns into the interior of the card machine or place them in a preset position of the card machine, identify the learning cards through the recognition device inside the card machine, and then read out the patterns in the learning cards in text through the speaker, so as to provide early education for the children. When the learning machine is a learning machine or a thinking machine, the embodiments provided by the present disclosure can significantly increase the diversity of interactions between the learning machine and the user, and improve the user experience.
[0039] Next, combine Figures 2 to 7 The embodiments of the present disclosure are described in detail.
[0040] The first aspect of the present disclosure provides a learning machine, the learning machine comprising a machine body and a plurality of learning cards; wherein at least one surface of the learning card comprises an identification code; the machine body is provided with a first placement slot, a camera module arranged at one side of the first placement slot, and a reflector opposite to both the first placement slot and the camera module. Figure 2 , the learning machine may be provided with an identification component 110 and a book placement area 120 for placing books (the book placement area 120 may include a first placement slot), and the identification component 110 includes a reflector 111 and a camera module 112, and the reflector 111 is arranged opposite to the camera module 112; wherein the camera module 112 and the reflector 111 are configured such that the identification position 130 falls within the field of view of the camera module 112 after being reflected by the reflector 111. The identification position 130 is the position where the identification code on the current page of the book is located when the book is placed on the book placement area 120 of the learning machine; that is, the learning card is used to be placed in the first placement slot so that the identification code is opposite to the reflector, and the camera module is used to identify the identification information of the identification code based on the image formed by the identification code in the reflector when the identification code is opposite to the reflector. The body is used to present media content based on identification information contained in the identification code (for example, parsing the collected identification code image based on a preset algorithm to obtain media content corresponding to the current page of the book, and presenting the media content).
[0041] Furthermore, the angle between the direction of the reflector 111 and the downward direction is zero or acute, wherein the downward direction is a direction perpendicular to the plane where the book placement area 120 is located and pointing away from the reflector 111; in other words, the angle between the surface of the reflector and the bottom surface of the first placement slot is zero or acute. Figure 3, which shows the optical path during the identification code recognition process from a frontal perspective. The light reflected by the object placed at the identification position 130 in the first placement slot 121 can propagate upward, and after being reflected by the reflector 111, it is collected by the camera module 112 deployed below and facing upward. Among them, the angle α∈[0°,90°) between the direction of the reflector 111 and the downward direction. As a result, the camera module 112 can be placed at a lower position of the fuselage, and its direction can be consistent with the direction of the inner pages of the book, and the image at the identification position 130 can be collected by the camera module 112 through the reflector 111, thereby effectively compressing the vertical height of the fuselage, greatly improving the convenience of the fuselage, and at the same time not affecting the compatibility of the fuselage with the thickness of the book.
[0042] It can be seen from the above embodiments that, compared with the solution in which the camera module 112 directly illuminates the identification position 130, the above embodiment uses a lens for reflection, so the setting position of the camera module 112 can be more flexible, which is convenient for the design and production of the body; at the same time, the folded light path can also compress the space occupied in a single direction, thereby greatly compressing the body volume without affecting the function and compatibility with the thickness of the book, thereby improving the portability and aesthetics of the body.
[0043] In some embodiments, see Figure 4 , which shows a body 100 in an open state, wherein the book placement area 120 can be composed of a first placement slot 121 for placing pages on one side of a book and a second placement slot 122 for placing pages on the other side of the book (that is, the body also includes a second placement slot located on a side of the first placement slot away from the camera module, and the learning card is also used to be placed in the second placement slot); wherein the first placement slot 121 can be rotatably connected to the second placement slot 122, and the body is used to determine the content of the current page of the book placed on the first placement slot 121 and the second placement slot 122 based on the identification information of the identification code collected by the camera module 112.
[0044] In the present disclosure, the identification code can be implemented based on an OID identification code, a two-dimensional code, text, etc. Among them, the OID (Optical Identify, optical identification) identification code is also called an OID invisible code, which has the characteristics of being almost invisible to the naked eye and having better adaptability to close-range identification; and compared with the OID invisible code, the two-dimensional code and text are more suitable for medium and long-distance identification. Therefore, when the thickness of the book cannot be ignored, the use of two-dimensional codes, text and other carriers to print the identification code can be compatible with thicker books, thereby improving the compatibility and expansibility of the body. In addition, if the principle based on which the identification code is printed is relatively special (for example, the material can only reflect ultraviolet light) or the identification component 110 has high requirements for the image acquisition environment, the body 100 can also be provided with a fill light for the field of view angle range of the camera module 112, so that the image quality collected by the identification component 110 meets the recognition standard of the identification code. Optionally, different pages of the book may be printed with different identification codes, so that the identification component 110 can identify different page information each time the user turns the page, thereby identifying the page information of each page; when the interaction based on the current page (such as presenting media) is completed, the user can turn to other pages to continue the interaction.
[0045] In order to realize the rotational connection between the first placement groove 121 and the second placement groove 122 , the body 100 may further be provided with a rotating shaft 140 , so that the first placement groove 121 and the second placement groove 122 can rotate around the rotating shaft 140 . Books that match the body will have identification codes printed at preset positions on each page. When the user places the opened book on the body 100, the pages on one side of the book can be placed on the first placement slot 121, and the pages on the other side of the book can be placed on the second placement slot 122 (that is, the first placement slot can be used to place the pages on one side, and the second placement slot can be used to place the pages on the other side). The spine (or the binding, folding, or hinge used to achieve the same function) can be located at the hinge 140, and the identification code printed on the current page of the book is located at the identification position 130 (this position can be a virtual concept) within the field of view of the identification component 110, so that the body can parse the image captured by the identification component 110 to obtain the identification information corresponding to the identification code (for example, calling a preset decoding algorithm), and search for the media content corresponding to the identification information, and then present the media content to the user. Therefore, the body can also have a media transmission component (a speaker for playing audio is used as an example in the figure), so as to present the media content to the user using the corresponding media medium. For more details, please refer to Figure 5 , which shows three views of the body, Figure 5 Part a in the figure is the front view of the machine body. Figure 5 Part b in the figure is a top view of the machine body. Figure 5 Part c in the figure is a side view of the machine body.
[0046] The identification code can be implemented based on an OID identification code, a two-dimensional code, text, etc. Among them, the OID (Optical Identification) identification code is also called an OID invisible code, which has the characteristics of being almost invisible to the naked eye and having better adaptability to close-range identification; and the two-dimensional code and text are more suitable for medium and long-range identification compared to the OID invisible code. Therefore, when the thickness of the book cannot be ignored, the use of two-dimensional codes, text and other carriers to print the identification code can be compatible with thicker books, thereby improving the compatibility and expansibility of the body. In addition, if the principle based on which the identification code is printed is relatively special (for example, the material can only reflect ultraviolet light) or the identification component 110 has high requirements for the image acquisition environment, the body 100 can also be provided with a fill light for the field of view angle range of the camera module 112, so that the image quality collected by the identification component 110 meets the recognition standard of the identification code. Optionally, different pages of a book may be printed with different identification codes, so that the identification component 110 can identify different page information each time the user turns the page, thereby identifying the page information of each page; when the interaction based on the current page (such as presenting media) is completed, the user can turn to other pages to continue the interaction.
[0047] It should be understood that the first placement slot 121, the second placement slot 122 and other parts marked in the schematic diagram shown in the present disclosure can be marked on the body 100 in the form of visual marks to guide the user and enhance the user's sense of purpose when placing books, thereby improving the simplicity of the body, and the present disclosure does not limit this. In addition, the groove structure of the first placement slot 121 and the second placement slot 122 can limit the position of the learning card, so that when the user places a book, the book can naturally fall into the concave structure to form a limitation on the first placement slot 121 and the second placement slot 122, which also improves the ease of operation when the user places the book. In addition, the body 100 can be provided with an independent limiting structure, for example, a protrusion formed by extending upward from the edges of the first placement groove 121 and the second placement groove 122 except the edges interconnected with the rotating shaft 140, or an independently provided groove-like structure, so that one end or multiple ends of the book can be inserted into the groove-like structure to limit the placement position of the book. Based on the above embodiment, users can place books more casually without affecting the body's recognition of the books placed by the users, which improves the user experience while reducing the probability that the body cannot recognize the identification code printed on the book.
[0048] It can be seen from the above embodiments that the body provided in the present disclosure can not only match the book in form, but also adapt to the turning of pages and opening and closing of books, thereby facilitating the storage and positioning of books, so that users can turn pages and open and close the books at will during the use of books, and the body can present different media content based on the current page of the book. The operation is simple and in line with user intuition; at the same time, in the application scenario of story narration or when using multiple learning cards with a sequential relationship, this adaptability can avoid confusion in the order of the learning cards, greatly improving the user experience.
[0049] In some embodiments, when the first placement groove and the second placement groove are rotated to a closed state, their opening directions are opposite to each other and they are attached to each other to form an accommodating space.
[0050] Specifically, see Figure 6 , which shows a schematic diagram of the opening and closing of a machine body. When the first placement slot 121 and the second placement slot 122 rotate around the rotating shaft 140, the angle between the plane where the first placement slot 121 is located and the plane where the second placement slot 122 is located can form a zero angle (or close to a zero angle), thereby forming a closed accommodating space (which can be regarded as a closed state at this time). The accommodating space can be used to store books, so that users do not need to take down the books and store them separately at the end of each study, which reduces the risk of damage or loss of books, and also improves the portability of the machine body when the user uses it; when the book is in the open state (or semi-open state, that is, the non-closed state), the user can view the content of the book and study based on the content of the book. Figure 4 In the example shown, the upwardly protruding edges (which may also be separately provided protrusions) formed by the first placement groove 121 and the second placement groove 122 sinking can fit together to form an accommodating space inside the sinking.
[0051] In some embodiments, the body further includes a control unit, which is in communication with the recognition component 110 and is configured to determine, based on the identification information of the identification code, the audio information and answer information of the question corresponding to the identification information.
[0052] For example, the machine body can determine that the card currently placed in the first placement slot 121 is a card printed with multiple flowers based on the image collected by the recognition component 110 and the relevant algorithm (of course, when the front and back order of the cards is known, the machine body can also determine the content of the card placed in the second placement slot 122, and the card in the first placement slot 121 and the card in the second placement slot 122 can be used to merge and present the question information), then the question audio information can be "please touch all the flowers from left to right in turn", and the answer information can be the touch information corresponding to "please touch all the flowers from left to right in turn" (the touch information can be collected by the touch module); for another example, the machine body can know that the card currently placed in the first placement slot 121 is a card printed with the letter "A", then the question audio information can be "please read the letter you see", and the answer information can be the voice corresponding to "A" (the voice can be collected by the microphone). These question audio information and answer information can be stored in the storage module and can be called by the control unit.
[0053] Furthermore, when the user inputs the answer result (for example, completes the touch process or speaks a voice), the control unit can compare the answer result with the answer information (for example, obtain the similarity between the two), and then determine the answer result information such as "correct answer" or "wrong answer, please try again" according to the comparison result and report it to the user. For example, the answer result information may include answer result information in audio form; the body also includes a speaker, which is communicatively connected to the control unit and is used to play the question audio information and the answer result information, such as broadcasting "correct answer" or "wrong answer, please try again" to the user through audio, so as to be more suitable for early childhood education scenarios.
[0054] Furthermore, in order to enrich the user's input methods, exemplarily, the body is provided with a touch module under the first placement slot 121, and the touch module is used to collect touch information, and the touch information includes one touch point information, multiple touch point information or touch trajectory information; the control unit is communicated with the touch module, and is used to determine the answer result information according to the answer information and the touch information.
[0055] The specific content of the above touch information can be determined according to the actual touch scenario. The touch module can identify one touch point or multiple touch points, and the point information can include the coordinate information, pressure information, etc. of the collected point. It can also be used to collect touch point information of multiple frames to obtain touch trajectory information. When the touch points collected by the body in multiple frames are connected, touch trajectory information can also be formed, so as to support users to perform handwriting, painting and other operations, and further improve the user experience. In the above process, the touch point, touch trajectory and other information collected by the touch module can be used to indicate a certain instruction so that the body executes the instruction, and can also be used as a parameter in a certain task performed by the body, thereby improving the quality of early childhood education.
[0056] Furthermore, the touch module can be arranged under the first placement slot 121 (of course, a touch module can also be placed under the second placement slot 122), and the touch module includes a capacitive touch module, and the sensitivity of the touch module is configured to be able to collect the touch signal input by the user for the card placed in the first placement slot 121, so that single-point or multi-point touch, line drawing, line connection, drawing, multi-finger touch and other operations can be recognized. Based on this, after the user places the book on the first placement slot 121, the user can directly perform touch operations on the current page of the book, which is in line with the user's intuition and enables the body to better interact with the book to present media content. At the same time, no additional operation area is added (but the operation area is merged with the learning card placement area), which does not affect the original product form, reduces production costs, and saves body space.
[0057] See also Figure 7 In terms of hardware architecture, the body may include a memory, a processor, and a media transmission component. The memory is used to store computer instructions that can be executed on the processor, and may also store media content corresponding to books or learning cards. The media transmission component may use at least one media medium (sound, image, supplementary text, etc.) to present the media content corresponding to the book or learning card to the user.
[0058] The above describes specific embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0059] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the inventions claimed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not claimed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.
[0060] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
[0061] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.
Claims
1. A learning machine, characterized in that: The learning machine comprises: a plurality of learning cards, at least one surface of the learning cards comprising an identification code; A body, wherein the body is provided with a first placement slot, a camera module arranged at one side of the first placement slot, and a reflector opposite to both the first placement slot and the camera module; Among them, the learning card is used to be placed in the first placement slot and make the identification code face the reflector, and the camera module is used to identify the identification information of the identification code based on the image formed by the identification code in the reflector when the identification code faces the reflector.
2. The learning machine according to claim 1, characterized in that The included angle between the surface of the reflector and the bottom surface of the first placement groove is zero angle or acute angle.
3. The learning machine according to claim 1, characterized in that The machine body further comprises a second placement slot arranged on a side of the first placement slot away from the camera module, and the learning card is further used to be placed in the second placement slot.
4. The learning machine according to claim 3, characterized in that The sides of the plurality of learning cards are connected to each other, and the plurality of learning cards connected to each other form an open page on one side and an open page on the other side when opened; The first placement slot is used for placing the pages on one side, and the second placement slot is used for placing the pages on the other side.
5. The learning machine according to claim 3, characterized in that: The first placement slot and the second placement slot are rotatably connected; When the first placement groove and the second placement groove are rotated to a closed state, their opening directions are opposite to each other and they are attached to each other to form an accommodating space.
6. The learning machine according to claim 1, characterized in that The body also includes a control unit, which is communicatively connected to the camera module and is used to determine the question audio information and answer information corresponding to the identification information according to the identification information of the identification code.
7. The learning machine according to claim 6, characterized in that The body is provided with a touch module below the first placement slot, for collecting touch information, wherein the touch information includes one touch point information, multiple touch point information or touch track information; The control unit is in communication connection with the touch module, and is used to determine answer result information according to the answer information and the touch information.
8. The learning machine according to claim 7, characterized in that: The touch module includes a capacitive touch module.
9. The learning machine according to claim 7, characterized in that: The answer result information includes answer result information in audio form; The body also includes a speaker, which is communicatively connected to the control unit and is used to play the question audio information and the answer result information.
10. The learning machine according to claim 1, characterized in that The identification code includes at least one of the following: an OID identification code, a QR code, or text.