Tactile bump structure, system and method for accessibility recognition

Abstract

The application provides a tactile convex structure, system and method for barrier-free identification, and belongs to the technical field of barrier-free tactile identification and packaging structure. The structure comprises a basic geometric contour structure, a tactile convex unit, a direction positioning structure and a risk prompt structure. The basic geometric contour structure is configured as different shape structures, and different basic geometric structures are used to distinguish different categories of information and form differentiated stimulation patterns in the tactile perception process. The tactile convex unit is arranged in the area surrounded by the basic geometric contour structure, different tactile convex units form different tactile stimulation areas through arrangement direction, distribution density, area position, spacing change and area position. The direction positioning structure is arranged at the bottom end of the basic geometric contour structure and is used for quickly confirming the direction of the tactile convex unit. The risk prompt structure is arranged below the basic geometric contour structure and is used for forming stronger tactile stimulation to prompt special areas or risk information.

Description

Technical Field

[0001] This invention belongs to the field of accessible tactile recognition and packaging structure technology, and particularly relates to a tactile protrusion structure, system and method for accessible recognition. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Accessible tactile recognition refers to a non-visual accessible information recognition method that uses tactile protrusions as information carriers, allowing visually impaired people to identify product categories, text, and safety information solely through touch. The core carriers include Braille dots and differentiated tactile classification marks.

[0004] Currently, existing accessibility identification technologies mainly include: Braille markings on packaging surfaces; simple raised or embossed structures; QR code recognition for products; and information recognition methods based on voice or electronic devices. Among these, some packaging uses partial raised structures or Braille to provide basic information prompts; and some products use QR codes or electronic recognition devices to obtain information.

[0005] However, most existing tactile structures use single raised dots or simple textures, which can only achieve limited information prompting functions and lack continuous tactile recognition structures suitable for product packaging and shelf scenarios. Furthermore, existing tactile structures typically lack: multi-level tactile differentiation structures; orientation positioning structures; risk warning structures; and continuous spatial distribution structures.

[0006] Furthermore, some existing solutions rely on Braille or electronic devices for recognition, which presents challenges such as high learning curves and limited application scenarios. Based on the above, visually impaired individuals, in consumer scenarios, are unable to independently complete continuous identification processes such as product category differentiation, function recognition, location confirmation, and risk assessment through continuous touch because product packaging and shelf labeling primarily rely on visual information with insufficient tactile support. Summary of the Invention

[0007] To overcome the shortcomings of the prior art, the present invention provides a tactile protrusion structure, system and method for barrier-free recognition. This technical solution can generate continuous tactile stimulation, improve structural discrimination ability and is applicable to tactile protrusion structure systems in packaging and shelf scenarios.

[0008] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions: In a first aspect, a tactile protrusion structure for accessibility recognition is disclosed, comprising: Basic geometric contour structure, tactile protrusion unit, orientation positioning structure and risk warning structure; The basic geometric contour structure is configured into different shape structures. By different basic geometric structures, different types of information can form differentiated stimulation patterns during tactile perception. Tactile protrusion units are provided within the area enclosed by the basic geometric contour structure. Different tactile protrusion units form different tactile stimulation areas through variations in arrangement direction, distribution density, area position, spacing, and area location. A directional positioning structure is provided at the bottom of the basic geometric contour structure to quickly confirm the orientation of the tactile protrusion unit; A risk warning structure is placed below the basic geometric contour structure to create stronger tactile stimulation and to indicate special areas or risk information.

[0009] As a further technical solution, the basic geometric contour structure includes: a circular structure, a triangular structure, a square structure, or a polygonal structure.

[0010] As a further technical solution, the tactile protrusion unit includes: dot-shaped protrusions, line-shaped protrusions, block-shaped protrusions, and graphic protrusions.

[0011] As a further technical solution, the orientation positioning structure adopts a square protrusion structure.

[0012] As a further technical solution, the risk warning structure adopts a circular protrusion structure or a triangular protrusion structure to create a more obvious tactile stimulus.

[0013] Secondly, a tactile system for accessibility recognition is disclosed, comprising: Arranged from top to bottom as follows: a tactile raised structure layer, a packaging surface layer, an adhesive layer, an NFC chip layer, and a back protective layer; The tactile protrusion structure layer forms a tactile recognition area that users can directly touch and perceive, enabling product recognition, orientation recognition, or risk recognition. The packaging surface layer is used to support the tactile raised structure layer and serves as the base layer of the overall packaging structure; The adhesive layer is disposed between the packaging surface layer and the NFC chip layer. The adhesive layer is used to fix the NFC chip layer inside the packaging and form a stable connection structure. The NFC chip layer is disposed inside the packaging or in a sandwich area; The back protective layer is disposed in the bottom area of ​​the NFC chip layer, and the back protective layer is used to protect the NFC chip layer. The mobile terminal can be brought close to the surface of the packaging to read the electronic information in the NFC chip layer, thereby realizing the coordinated use of tactile recognition and digital information reading.

[0014] As a further technical solution, the NFC chip layer includes an NFC chip and an antenna structure, used to store product information, product description information, production information, logistics information, anti-counterfeiting information, or voice-assisted information.

[0015] As a further technical solution, the adhesive layer may be a double-sided adhesive layer, a hot melt adhesive layer, a pressure-sensitive adhesive layer, or an embedded fixing layer.

[0016] As a further technical solution, the back protective layer may be a flexible protective film, a buffer layer, or an insulating layer structure.

[0017] Thirdly, an accessibility recognition method is disclosed, including: Product identification, area identification, or risk identification is accomplished through a tactile raised structure layer; Then, by bringing a mobile terminal close to the surface of the packaging, the electronic information in the NFC chip layer is read, thereby realizing the coordinated use of tactile recognition and digital information reading.

[0018] The above one or more technical solutions have the following beneficial effects: The tactile protrusion structure based on the technical solution of this invention forms distinguishable continuous tactile stimulation during touch through the combination of basic geometric contour structure, tactile protrusion units, spatial distribution structure, directional positioning structure, and risk warning structure. When users touch different structural areas with their fingers, they can perceive different boundary change features, protrusion distribution features, and directional features, thereby achieving tactile differentiation and area positioning between different structural areas and enabling barrier-free recognition. This solves the problems of existing tactile labeling structures having limited information levels, insufficient continuous recognition capability, difficulty in directional recognition, and limited risk warning effect. It can be applied to packaging labeling and shelf classification recognition scenarios for food, pharmaceuticals, and daily chemical products.

[0019] Advantages of additional aspects 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. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the tactile protrusion in an embodiment of the present invention; Figure 2 This is a schematic diagram of the sub-touch unit structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the spatial distribution structure of the sub-touch units in an embodiment of the present invention; Figure 4This is a schematic diagram of the sub-direction recognition structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the sub-risk warning structure of an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the application of the embodiments of the present invention on product packaging; Figure 7 This is a schematic diagram illustrating the application of the embodiment of the present invention in a shelf environment; Figure 8 This is an exploded view of the collaborative structure of the sub-touch structure and NFC module in an embodiment of the present invention.

[0022] In the diagram: 1. Basic geometric contour structure; 2. Tactile protrusion unit; 3. Orientation positioning structure; 4. Risk warning structure; 5. Linear protrusion; 6. Block protrusion; 7. Dot protrusion; 8. Graphic protrusion; 9. Central distribution structure; 10. Edge distribution structure; 11. Discrete distribution structure; 12. Semi-domain distribution structure; 4-1 Low-risk warning structure; 4-2 Medium-risk warning structure; 4-3 High-risk warning structure; 4-4 Allergy risk warning structure; 13 Shelf guide patch; 14 Tactile label on the front edge of the shelf; 15 Tactile raised structure layer; 16 Packaging surface layer; 17 Adhesive layer; 18 NFC chip layer; 19 Back protective layer. Detailed Implementation

[0023] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations of the present invention.

[0025] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0026] Example 1 Based on the background technology description, the current accessible tactile recognition methods for products targeting the visually impaired are mainly based on traditional six-dot Braille. Various food, medicine, daily chemical and beverage products rely solely on standardized Braille characters to convey information, without constructing a differentiated and hierarchical tactile recognition system. Existing Braille markings lack category differentiation design in terms of structure, dot layout and tactile characteristics, resulting in extremely low accessibility for tactile recognition.

[0027] Traditional Braille only records the basic product name and lacks tactile recognition modules corresponding to key safety information such as allergen warnings, applicable scenarios, and hazardous properties. Some small-sized medicines and personal care samples even lack tactile recognition labels altogether. When visually impaired individuals go out shopping alone, relying solely on Braille for accessible tactile recognition can easily lead to confusion between oral medications, topical medications, beverages, and food, resulting in the mistaken purchase of products containing allergenic ingredients and the risk of acute allergies or accidental poisoning. In the home kitchen environment, the tactile recognition characteristics of condiments, beverages, and disinfectants are similar, making it easy for detergents and disinfectants to be mistakenly used for food processing. The moisture in the bathing space reduces the tactile sensitivity of fingertips, further decreasing the ability to distinguish between accessible tactile products such as shampoos, disinfectants, and topical ointments, potentially leading to burns and contact dermatitis from the mistaken use of irritants on the skin and mucous membranes.

[0028] Therefore, the existing single Braille-based barrier-free tactile recognition solution only has text reading function, lacks pre-classified tactile labels and graded risk tactile prompts, and cannot meet the safety recognition needs of high-risk scenarios such as solo travel, kitchen, and bathing, and has significant safety defects.

[0029] Therefore, see Appendix Figure 1 As shown, this embodiment discloses a tactile protrusion structure for accessibility recognition, disposed on the surface of packaging, mainly applied in daily consumption scenarios for visually impaired individuals, specifically including the following two categories: product packaging recognition scenarios, such as... Figure 6 As shown; supermarket shelf positioning scenarios, such as Figure 7 As shown, it includes a basic geometric contour structure 1, a tactile protrusion unit 2, a directional positioning structure 3, and a risk warning structure 4.

[0030] The basic geometric contour structure 1 is located on the outer side of the entire tactile protrusion structure, forming the overall boundary tactile area. The basic geometric contour structure can be circular, triangular, square, or polygonal. Different geometric contours create different boundary changes during finger sliding, forming distinguishable boundary tactile stimuli. This allows different categories of information to form differentiated stimulus patterns during tactile perception, thereby improving the efficiency and safety of information recognition for visually impaired users.

[0031] In one embodiment, the tactile protrusion unit 2 is disposed inside the basic geometric contour structure 1. The tactile protrusion unit includes dot-shaped protrusions, line-shaped protrusions, block-shaped protrusions, and graphic protrusions. For example... Figure 2 As shown, select Figure 1 The numbers 01, 07, 09, and 20 are briefly explained: 5 is a linear protrusion, 6 is a block protrusion, 7 is a dot protrusion, and 8 is a graphic protrusion. Different tactile protrusion units form different tactile stimulation areas through variations in arrangement direction, distribution density, spacing, and location. When a user's finger slides across different areas, they can perceive different changes in friction, pressure, and continuous tactile sensations.

[0032] This embodiment forms a spatial organization structure by defining the positional distribution of the tactile protrusion units 2 within the geometric contour. The spatial distribution methods include: edge distribution structure; center distribution structure; semi-domain distribution structure; and discrete distribution structure. Different distribution structures create different continuous tactile paths during finger sliding.

[0033] In one implementation example, the orientation positioning structure 3 is disposed on the edge region or bottom edge of the tactile protrusion structure, such as... Figure 4 As shown. The orientation positioning structure adopts a square protrusion structure. (See attached image.) Figure 4 As shown, select Figure 1 The numbers 01, 09, and 21 are briefly explained: 3 is a square raised positioning structure. Users can quickly confirm the overall orientation of the tactile raised structure during the initial touch phase through this orientation structure, reducing recognition errors caused by inverted touch.

[0034] In one implementation example, the risk warning structure 4 is positioned in a localized area, specifically below the directional positioning structure. The risk warning structure employs either a circular or triangular raised structure; the circular raised structure can be a single circular protrusion or a double circular protrusion to create a more pronounced tactile stimulus. Users can quickly perceive key areas, special areas, or risk information during touch. (Regarding the risk warning structure...) Figure 5 As shown, it includes: low-risk warning structure 4-1; medium-risk warning structure 4-2; high-risk warning structure 4-3; and allergy risk warning structure 4-4.

[0035] Spatial distribution structure of tactile units, such as Figure 3 As shown, it includes a central distribution structure 9, a peripheral distribution structure 10, a discrete distribution structure 11, and a semi-domain distribution structure 12.

[0036] The tactile raised structure in this embodiment can be formed on the packaging surface through mold embossing, steel stamping, hot pressing, injection molding, or UV embossing. The tactile raised structure can be installed on the surface of food, pharmaceutical, and daily chemical product packaging, and the height, spacing, and area parameters of the raised structure can be adjusted according to different packaging materials. During use, the user can perceive the boundary changes, tactile raised distribution characteristics, and directional characteristics sequentially by continuously sliding their finger across the surface, thereby achieving tactile differentiation and area positioning between different structural regions.

[0037] In one implementation example, such as Figure 7 As shown, the aforementioned tactile protrusion structure is applied to the shelf end area, shelf front area, and merchandise placement area. It is formed on the shelf guide patch and shelf front tactile label through a process to form a tactile identification structure, which is used to assist users in identifying merchandise categories, locating shelf areas, and retrieving merchandise.

[0038] The tactile labeling structure includes a shelf guide patch 13 and a shelf front tactile label 14.

[0039] The tactile structure of shelf guide patches can be formed on the surface of shelves, price strips, or labels through mold embossing, stamping, thermoforming, injection molding, or UV embossing.

[0040] The tactile structure of the front-edge tactile labels can be formed on the surface of the shelf, price tag, or label paper through processes such as mold embossing, stamping, thermoforming, injection molding, or UV embossing. The front-edge tactile labels are arranged horizontally, continuously along the shelf direction, forming a continuous positioning area. Different horizontal structures correspond to different subcategories within the same major category.

[0041] Shelf guide patches 13 are disposed in the end column area of ​​the shelf. Shelf guide patches 13 adopt a basic geometric contour structure and are set with corresponding product category information. In this embodiment, shelf guide patches 13 are disposed at the entrance of the product area and correspond to specific information through specific tactile protrusions. When entering the shelf area, users can quickly identify the product category area by touching the shelf guide patches 13.

[0042] A tactile label 14 is positioned on the front edge of the shelf in the price bar area. The tactile label 14 includes different tactile protrusions and corresponds to different product categories. In this embodiment, the tactile label 14 corresponds to different product categories such as "shampoo" and "shower gel." By continuously sliding their finger along the front edge of the shelf, users can perceive different tactile changes in sequence to complete product category identification, further enabling them to locate and retrieve specific products.

[0043] In a shelf setting, vertically arranged structures are used to form continuous categorization areas; horizontally arranged structures are used to form continuous positioning areas. Users navigate to product categories by continuously swiping.

[0044] In this embodiment, a continuous touch path is formed. During use, users can complete the product search process by following the touch path of shelf guidance recognition, shelf category recognition, and product location and retrieval. The continuous touch path can reduce user reliance on visual perception and improve product positioning efficiency.

[0045] In some embodiments, the shelf guide patch 13 adopts a vertical arrangement structure to form a continuous classification area, with different vertical structures corresponding to different product categories; the shelf front tactile label 14 adopts a horizontal arrangement structure to form a continuous positioning area, with different horizontal structures corresponding to different product placement positions.

[0046] The tactile label structure in this embodiment can be formed on the surface of the shelf, price bar, or guide patch through UV embossing, mold embossing, hot pressing, laser engraving, injection molding, or adhesive molding processes.

[0047] Example 2 In some implementations, the tactile identification structure can also be set up in conjunction with NFC. After completing tactile positioning, users can read product information, price information, inventory information, nutritional information, or voice-guided shopping information through mobile terminals, thereby realizing the coordinated use of tactile recognition and digital information reading.

[0048] The tactile labeling structure in this embodiment can be applied to supermarket shelves, pharmacy shelves, warehouse shelves, convenience store shelves, or accessible signage shelves, and can assist visually impaired users, elderly users, or ordinary users to quickly complete product identification and positioning.

[0049] Specifically, such as Figure 8 As shown, the purpose of this embodiment is to provide a tactile system for accessibility recognition, including: Arranged from top to bottom as follows: a tactile raised structure layer, a packaging surface layer, an adhesive layer, an NFC chip layer, and a back protective layer; The tactile raised structure layer forms a tactile recognition area that users can directly touch and perceive, enabling product recognition, orientation recognition, or risk recognition; The packaging surface layer is used to support the tactile raised structure layer and serves as the base layer of the overall packaging structure; An adhesive layer is disposed between the packaging surface layer and the NFC chip layer. The adhesive layer is used to fix the NFC chip layer inside the packaging and form a stable connection structure. The NFC chip layer is located inside the packaging or in a sandwich area; A back protective layer is disposed at the bottom area of ​​the NFC chip layer, and the back protective layer is used to protect the NFC chip layer; The mobile terminal can be brought close to the surface of the packaging to read the electronic information in the NFC chip layer, thereby realizing the coordinated use of tactile recognition and digital information reading.

[0050] The tactile raised structure layer 15 is located on the outermost side of the overall structure, forming a tactile recognition area that the user can directly touch and perceive. The tactile raised structure includes dot-shaped raised areas, linear raised areas, block-shaped raised areas, or graphic raised structures, and can form different tactile stimulation areas through variations in arrangement direction, distribution density, area location, spacing, and area position. Users can complete product recognition, orientation recognition, or risk recognition through tactile changes during finger swiping.

[0051] The packaging surface layer 16 is disposed below the tactile raised structure layer 15, which is produced by a process involving embossing the packaging surface layer 16. The packaging surface layer 16 is used to support the tactile coding structure and serves as the base layer of the overall packaging structure. The packaging surface layer 16 can be formed from paper materials, plastic films, composite materials, metal films, or flexible substrates.

[0052] An adhesive layer 17 is disposed between the packaging surface layer 16 and the NFC chip layer 18. The adhesive layer 17 is used to fix the NFC chip layer 18 inside the packaging and form a stable connection structure. The adhesive layer 17 can be a double-sided adhesive layer, a hot melt adhesive layer, a pressure-sensitive adhesive layer, or an embedded fixing layer.

[0053] An NFC chip layer 18 is disposed inside the packaging or in a sandwich area. The NFC chip layer 18 includes an NFC chip and an antenna structure, used to store product information, product description information, production information, logistics information, anti-counterfeiting information, or voice assistance information. The NFC chip layer 18 is correspondingly disposed with the tactile raised structure layer 15, with different tactile coding structures corresponding to different digital information content.

[0054] A back protective layer 19 is disposed at the bottom region of the NFC chip layer 18. The back protective layer 19 is used to protect the NFC chip layer 18 and reduce the impact of external pressure, wear, moisture or electromagnetic interference on the chip structure. The back protective layer 19 can be a flexible protective film, a buffer layer or an insulating layer structure.

[0055] During use, users first identify products, areas, or risks through the tactile raised structure layer 15; then, they use a mobile terminal to read the electronic information in the NFC chip layer 18 by bringing it close to the packaging surface, thus achieving the coordinated use of tactile recognition and digital information reading.

[0056] In this embodiment, the tactile raised structure layer 15 can be formed on the packaging surface through mold embossing, UV embossing, hot pressing, laser engraving, injection molding, or 3D printing. The NFC chip layer 18 can be a flexible NFC tag, an ultra-thin electronic tag, or a printed electronic circuit structure.

[0057] In some implementations, the tactile protrusion structure layer 15 and the NFC chip layer 18 form a one-to-one correspondence. Different tactile structures correspond to different electronic information areas to form an information recognition system based on tactile coding.

[0058] The NFC chip layer 18 is disposed inside the packaging substrate, on the back, or in a sandwich area, and is configured correspondingly to the tactile structure. After completing tactile positioning, the user can read additional information via a mobile terminal to achieve the coordinated use of tactile recognition and digital information reading.

[0059] The above technical solutions can improve user area positioning capabilities; enhance user structure differentiation and continuous tactile recognition capabilities; improve tactile recognition efficiency and stability; provide risk priority prompts; improve recognition consistency; and have scalability and standardization potential.

[0060] Example 3 The purpose of this embodiment is to provide an accessibility recognition method, including: Product identification, area identification, or risk identification is accomplished through a tactile raised structure layer; Then, by bringing a mobile terminal close to the surface of the packaging, the electronic information in the NFC chip layer is read, thereby realizing the coordinated use of tactile recognition and digital information reading.

[0061] Taking a shower gel, a daily chemical personal care product, as an example, the accessibility recognition method of this embodiment will be explained.

[0062] A tactile raised structure layer (including an NFC chip layer) is set on the surface of the shower gel. The tactile raised structure includes a basic geometric contour structure, a tactile unit structure, an orientation positioning structure, and a risk warning structure.

[0063] like Figure 3 The tactile protrusion structure in section 03 represents a daily chemical product, shower gel. Its basic geometric outline structure 1 is square, representing daily chemical products. The central distribution structure represents a personal care product, with 3 dot-shaped units indicating that the product category is shower gel. A directional positioning structure is set at the bottom edge of the structure, and a risk warning structure is set below the directional positioning structure to indicate the risk level of the product.

[0064] Product identification process: First, by touching the basic geometric outline, which is a square, users can identify that this is a daily chemical product.

[0065] Secondly, by touching the bottom edge of the basic geometric outline, you can find a raised directional positioning structure to determine the correct direction of the tactile protrusion. Then, by touching inward, you can find three dot-like protrusions in the very center of the square basic geometric outline, which indicates that the product is a shower gel.

[0066] Finally, by touching the risk warning structure below the orientation structure—two dot-like protrusions—you can determine that the product is a medium-risk product.

[0067] The tactile identification structure can also be set up in conjunction with NFC. After completing tactile positioning, users can read product information, price information, inventory information, nutritional information, or voice shopping guide information through mobile terminals, so as to realize the coordinated use of tactile recognition and digital information reading.

[0068] Region identification process: After entering the supermarket, customers can identify different areas by touching the shelf guide stickers on the shelves. See Shelf guide sticker 13. Figure 7 As shown, when the basic geometric outline is square, it can be identified that the shelf contains daily chemical products. Then, by touching the front label 14 on the shelf, different daily chemical products can be distinguished. When the tactile protrusion structure on the front label is three dot-shaped protrusions in the middle of the square basic geometric outline, it can be identified that the product is shower gel. Then, by bringing the mobile phone close to the tactile protrusion structure, information such as the production date, brand introduction and ingredients of different products can be obtained through NFC collaboration.

[0069] The steps and methods involved in the apparatus of the above embodiments correspond to those in Embodiment 1. For specific implementation details, please refer to the relevant description section of Embodiment 1. The term "computer-readable storage medium" should be understood as a single medium or multiple media including one or more instruction sets; it should also be understood as including any medium capable of storing, encoding, or carrying an instruction set for execution by a processor and enabling the processor to perform any of the methods in this invention.

[0070] Those skilled in the art will understand that the modules or steps of the present invention described above can be implemented using general-purpose computer devices. Optionally, they can be implemented using computer-executable program code, thereby allowing them to be stored in a storage device for execution by a computer device, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. The present invention is not limited to any particular combination of hardware and software.

[0071] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A tactile protrusion structure for accessibility recognition, characterized in that, include: Basic geometric contour structure, tactile protrusion unit, orientation positioning structure and risk warning structure; The basic geometric contour structure is configured into different shape structures. By different basic geometric structures, different types of information can form differentiated stimulation patterns during tactile perception. Tactile protrusion units are provided within the area enclosed by the basic geometric contour structure. Different tactile protrusion units form different tactile stimulation areas through variations in arrangement direction, distribution density, area position, spacing, and area location. A directional positioning structure is provided at the bottom of the basic geometric contour structure to quickly confirm the orientation of the tactile protrusion unit; A risk warning structure is placed below the basic geometric contour structure to create stronger tactile stimulation and to indicate special areas or risk information.

2. The tactile protrusion structure for accessibility recognition as described in claim 1, characterized in that, The basic geometric contour structure includes: circular structure, triangular structure, square structure or polygonal structure.

3. The tactile protrusion structure for accessibility recognition as described in claim 1, characterized in that, The tactile protrusion unit includes: dot-shaped protrusions, line-shaped protrusions, block-shaped protrusions, and graphic protrusions.

4. The tactile protrusion structure for accessibility recognition as described in claim 1, characterized in that, The orientation positioning structure adopts a square protrusion structure.

5. A tactile protrusion structure for accessibility recognition as described in claim 1, characterized in that, The risk warning structure adopts a circular or triangular protrusion structure to create a more obvious tactile stimulus.

6. A tactile system for accessibility recognition, characterized in that, include: Arranged from top to bottom as follows: a tactile raised structure layer, a packaging surface layer, an adhesive layer, an NFC chip layer, and a back protective layer; The tactile protrusion structure layer forms a tactile recognition area that users can directly touch and perceive, enabling product recognition, orientation recognition, or risk recognition. The packaging surface layer is used to support the tactile raised structure layer and serves as the base layer of the overall packaging structure; The adhesive layer is disposed between the packaging surface layer and the NFC chip layer. The adhesive layer is used to fix the NFC chip layer inside the packaging and form a stable connection structure. The NFC chip layer is disposed inside the packaging or in a sandwich area; The back protective layer is disposed in the bottom area of ​​the NFC chip layer, and the back protective layer is used to protect the NFC chip layer. The mobile terminal can be brought close to the surface of the packaging to read the electronic information in the NFC chip layer, thereby realizing the coordinated use of tactile recognition and digital information reading.

7. A tactile system for accessibility recognition as described in claim 6, characterized in that, The NFC chip layer includes an NFC chip and an antenna structure, used to store product information, product description information, production information, logistics information, anti-counterfeiting information, or voice-assisted information.

8. A tactile system for accessibility recognition as described in claim 6, characterized in that, The adhesive layer may be a double-sided adhesive layer, a hot melt adhesive layer, a pressure-sensitive adhesive layer, or an embedded fixing layer.

9. A tactile system for accessibility recognition as described in claim 6, characterized in that, The back protective layer can be a flexible protective film, a buffer layer, or an insulating layer structure.

10. An accessibility recognition method, characterized in that, include: Product identification, area identification, or risk identification is accomplished through a tactile raised structure layer; Then, by bringing a mobile terminal close to the surface of the packaging, the electronic information in the NFC chip layer is read, thereby realizing the coordinated use of tactile recognition and digital information reading.

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