Universal four-element visual coding dynamic adaptation system and method

Abstract

The application discloses a universal four-element visual coding dynamic adaptation system and method, belongs to the technical field of information visualization and human-computer interaction, and aims to solve the problems of fragmentation of existing visual identification systems, inability of dynamic adaptation, insufficient barrier-free coverage and cross-language information barriers. The system comprises a rule definition and dynamic adaptation module, a visual coding module and a display control module. By collecting real-time operation data to determine high / medium / low three-grade service priorities, based on the global mapping rules of the unique binding of the priorities and visual elements, the color, outer frame shape, internal guide mark and brief text four elements are matched for level coding to generate visual information units; wherein the color+shape constitute double coding to guarantee the identification of color vision impaired people. The system supports multi-modal output such as multi-language, minority language, pinyin comparison and voice broadcast. The application can be widely applied to various public service scenes such as public transportation and emergency rescue.

Description

Technical Field

[0001] This invention relates to the fields of information visualization and human-computer interaction, specifically to a universal four-element visual coding and identification system and dynamic adaptation method applicable to all scenarios, which can be widely used in public transportation, emergency rescue, medical services, personal management, business operations, campus services, public services in ethnic minority areas and other scenarios. Background Technology

[0002] As cities continue to expand and their functions upgrade, various service scenarios face technical challenges such as low information transmission efficiency, complex rules, high cognitive costs, and significant language barriers. Taking public transportation as an example, the current mainstream single-response stop model has serious flaws: it lacks unified visual guidance, easily leading to information interaction misalignment where "the vehicle hesitates while the passenger is confused"; it is unfriendly to vulnerable groups such as the elderly, children, migrant workers, and ethnic minorities, violating the principle of universal access to public services; and it cannot adapt to the full-scenario operational needs of urban core areas, urban-rural fringe areas, remote rural areas, and ethnic minority regions, exhibiting extremely poor scenario adaptability.

[0003] Besides public transportation, visual signage systems in fields such as emergency rescue, medical services, personal knowledge management, business operations, and campus services also suffer from common technical deficiencies. Existing fragmented technical solutions cannot fundamentally and systematically solve these problems, as detailed below:

[0004] (1) The relevant national standards for public information graphic symbols, including the early version GB / T 10001.1-2012 "Public Information Graphic Symbols Part 1: General Symbols", the current GB / T 10001.1-2023 "Public Information Graphic Symbols Part 1: General Symbols" series of standards, as well as the early version GB 5768 "Road Traffic Signs and Markings" and the current effective version "Road Traffic Signs and Markings" series of standards, only specify the form and setting rules of graphic symbols for a single industry and a single static scenario. They have not established service priority and visual element binding mapping rules that are universal across industries and all scenarios. The identification logic of different scenarios is completely separated, and the user learning cost is extremely high. Moreover, the existing standards are clearly not applicable to electronic display dynamic guidance systems and cannot adapt to real-time changing service scenarios.

[0005] (2) The relevant standards for barrier-free design, including GB 50763 "Barrier-free Design Code", GB 55019 "General Specification for Barrier-free Construction and Municipal Engineering", and WCAG 2.1 barrier-free standard, only specify the single technical requirements of visual contrast and color-friendliness. They do not propose a systematic barrier-free solution of "color + shape dual coding + multimodal and multilingual reinforcement", and cannot simultaneously cover the entire population such as people with color vision impairment, the elderly, people with low education, ethnic minorities, and foreigners. There are obvious shortcomings in the barrier-free adaptation capabilities.

[0006] (3) Existing dynamic scheduling and data collection technologies can only realize the statistics of operational data and the adjustment of operational strategies. They are not deeply integrated with the visual coding system and cannot achieve the collaborative linkage of "real-time changes in service priority → automatic synchronous updates of visual coding". The level of intelligence is low and cannot adapt to the dynamic needs of the scenario.

[0007] (4) Existing multilingual translation and speech synthesis technologies exist only as independent additional functions and have never been integrated with the visual coding system of public services. They cannot fundamentally eliminate language barriers in ethnic minority areas, cross-border areas, and multicultural scenarios, resulting in insufficient universality of public services.

[0008] Currently disclosed patent technologies mostly focus on static signage design for single industries or process optimization for bus stop patterns. They lack cross-industry, universally applicable rules for binding and mapping service priorities and visual elements, and have not constructed a complete four-element, horizontally aligned visual coding system or a multimodal, barrier-free information transmission solution for all population groups. Therefore, in scenarios such as public transportation, emergency rescue, medical services, and public services in ethnic minority areas, where service priorities need to be dynamically adjusted based on real-time data while also considering barrier-free information transmission across all population groups, ethnicities, and languages, existing technologies have not yet formed a universally applicable, dynamically adaptable, and universally applicable visual coding system and method. Summary of the Invention

[0009] (a) Purpose of the invention

[0010] This invention aims to overcome the shortcomings of existing technologies and break down the technical barriers in public signage, accessibility design, dynamic scheduling, and multilingual services. It provides a universal four-element visual coding dynamic adaptation system and method, constructing a universal mapping rule that uniquely binds color + outline shape to service priority. Through the parallel combination of the four elements, the "color + shape dual coding mechanism," simultaneous text and voice broadcasting, multilingual translation, minority language text comparison, children's pinyin comparison, and bilingual display, it achieves "one code, universal adaptation, all-people, and all-ethnic friendliness," fundamentally solving the technical problems of fragmented visual signage, high cognitive threshold, poor adaptability of single modes, insufficient accessibility coverage, and language barriers in multi-ethnic regions.

[0011] (II) Technical Solution

[0012] Terminology Definitions and Scope Description

[0013] (1) The high saturation mentioned in this invention specifically refers to the three primary colors of red, blue and yellow with a chroma of ≥85% as specified in GB / T 15608 "Chinese Color System". The color value space conforms to the sRGB standard color space requirements specified in IEC 61966-2-1. Under different display media and ambient lighting conditions, the hue deviation is ≤5% and the chroma deviation is ≤10%, maintaining consistent recognition.

[0014] (2) The service determinism level described in this invention refers to the service commitment level that corresponds one-to-one with the service priority. It is divided into three levels: high determinism service, conditional determinism response service, and high flexibility reachable service, and is uniquely bound to the color-shape combination of visual encoding.

[0015] (3) The circular outline described in this invention refers to a circular geometric figure with a closed outline and no sharp edges, including a perfect circle and a near-circular ellipse with a major-minor axis ratio of 1:0.95 to 1:1.05, excluding flat ellipses with a major-minor axis ratio exceeding this range and unable to guarantee the consistency of outline recognition; among them, the perfect circle is the optimal embodiment, which has the highest recognition stability and semantic matching degree.

[0016] (4) The square outline described in this invention refers to a closed quadrilateral outline formed by four sides and four interior angles, including right-angled squares (squares, rectangles) and rounded squares; among which the right-angled square is the preferred embodiment, which has the strongest distinguishability from the circular and triangular outlines and perfectly matches the standard service semantics of the medium priority.

[0017] (5) The triangular contour described in this invention refers to a closed triangular contour formed by three sides, including equilateral triangles and isosceles triangles, and covers rounded triangles and apical triangles, among which equilateral rounded triangles are the optimal embodiment; isosceles triangles with a ratio of leg length to base length exceeding the range of 1:0.8 to 1:1.2 are excluded to ensure the consistency of contour recognition across scenes.

[0018] (6) The geographic information points of interest mentioned in this invention refer to public service venue nodes with clear location and attribute labels in geographic space, including but not limited to core service nodes such as transportation hubs, hospitals, schools, and large communities.

[0019] (7) The CAN bus mentioned in this invention refers to a standardized serial bus that enables communication and interaction between various electronic control units inside a vehicle.

[0020] (8) The LMS color vision model described in this invention refers to an internationally recognized color vision simulation model constructed based on the response characteristics of three types of cone cells in the human eye to long, medium and short wavelength light.

[0021] (9) Any modification made by those skilled in the art to the rounded corners, aspect ratio, or major and minor axis ratio of the shape without departing from the core mapping rules of this invention is an equivalent alternative to this invention and falls within the protection scope of this invention.

[0022] To achieve the above objectives, the present invention adopts the following technical solution:

[0023] This invention discloses a universal four-element visual coding dynamic adaptation system, including a rule definition and dynamic adaptation module, a visual coding module, and a display control module, along with a full-domain graphic symbol database and a universal rule storage module. The rule definition and dynamic adaptation module collects real-time scene data and determines high, medium, and low service priorities and corresponding deterministic levels based on data thresholds such as passenger flow intensity, site attributes, and operational status. The visual coding module generates visual information units by combining color, outer frame shape, internal signage, and brief text elements according to the full-domain mapping rules. The four elements are mutually independent and parallel codes. The system is composed of units without hierarchical distinctions; through speech synthesis and multilingual conversion units, it utilizes hardware such as TTS engines and speech chips to achieve voice playback of text elements, multilingual translation, conversion of minority languages, generation of children's pinyin, and bilingual comparison display; the system supports the combined use of visual elements, with color and outer frame shape forming the core "color + shape dual encoding mechanism," and internal guide markers serving as replaceable semantic layers; the display control module outputs the encoding results to various carriers and can be linked with external devices such as vehicle CAN bus, enabling deployment across all regions, ethnic groups, and multiple languages ​​without modifying existing hardware.

[0024] The four elements of this invention are independent, parallel coding units with no hierarchy, unlike the hierarchical design of existing technologies that prioritizes graphics and supplements text. This ensures that any core element (color / shape) can independently and completely convey service priority information. Even if one element fails (e.g., people with color vision impairment cannot recognize colors), the other element can still achieve 100% information transmission, fundamentally improving the reliability of barrier-free recognition for the entire population while reducing the learning cost for users.

[0025] This invention also discloses a general four-element visual coding dynamic adaptation method, which includes six steps: data acquisition, service level determination, four-element unit generation, accessibility verification and multimodal and multilingual conversion, multi-carrier output, and dynamic iterative update. The entire process is automated and can adjust the visual coding and output content in real time according to passenger flow intensity, scene level, resource status, and regional language environment.

[0026] The core mapping rule of this invention is: high priority = high saturation red + circular outline; medium priority = high saturation blue + square outline; low priority = high saturation yellow + triangle outline.

[0027] The implementation of service priority scalability is as follows: When adding a new service priority level, it must be matched with a unique, visually unambiguous, high-saturation color and a unique, unambiguous regular geometric shape that does not differ from existing circles, squares, and triangles. It strictly adheres to the core mapping rule of "one service priority corresponding to a unique color + shape combination," ensuring that the expanded level still achieves barrier-free recognition and is universally applicable across all scenarios. An example expansion method includes adding a super-high priority level, matching a combination of magenta and a regular octagon, for life-saving scenarios such as emergency rescue and medical first aid.

[0028] (III) Beneficial Effects

[0029] This invention deeply integrates four core modules: "universal mapping rules, four-element peer-to-peer coding mechanism, dynamic data adaptation, and multimodal and multilingual accessibility enhancement." This breaks down the domain barriers in existing technologies regarding public identifiers, accessibility design, dynamic scheduling, and multilingual services, resulting in collaborative technological effects that cannot be achieved with existing technologies. Specifically:

[0030] (1) Universal and borderless across the entire domain: By using the "unique binding of service priority, color and shape universal mapping rule", the visual identification logic that was originally scattered in different industries and different standards is unified. One set of rules is applicable to all scenarios of public services, personal management and business operations. There are no industry barriers. Users only need to learn once to use it in all scenarios, which completely solves the technical problems of fragmentation and high learning cost of existing identification.

[0031] (2) Accessibility for all people: Through the synergy of the “color + shape dual coding mechanism” and the “four elements level design”, ordinary users can quickly identify the color from a distance, and people with color vision impairment can accurately judge the shape. Even if one of the core elements fails, the other element can still convey the service priority information 100%. Simultaneously, combined with voice broadcast, multilingual translation, and pinyin comparison, it further covers the elderly, people with low education, visually impaired people, ethnic minorities and children, achieving full coverage of all people without dead ends that cannot be achieved by existing single accessibility technologies.

[0032] (3) Dynamic Adaptation and Intelligence: Through the deep linkage between the "rule definition and dynamic adaptation module" and the "visual coding module", the entire process of real-time operation data collection → service priority determination → automatic synchronization and updating of visual coding is fully automated, which solves the technical problems that the existing static signage cannot adapt to the dynamic changes of the scenario and the existing scheduling system is disconnected from the visual signage, and realizes the accurate matching of service resources and needs.

[0033] (4) Extremely low implementation cost: The whole solution is compatible with existing national standard graphic symbols, existing display carriers, and existing hardware equipment. There is no need to modify the existing infrastructure. It supports output on all carriers such as electronic screens, stickers, hand-painted, and spray paint, which solves the problems of high modification cost and difficulty in implementation of existing signage systems.

[0034] (5) Multi-ethnic and multilingual full coverage: The design integrates multilingual translation, minority script comparison, dialect voice broadcasting and visual coding system, rather than simply adding functions, to completely eliminate language barriers in ethnic areas, cross-border areas and multicultural scenarios, and realize the equalization and universal access to public services. This is an effect that existing visual identification technology and translation technology cannot achieve alone.

[0035] Non-obviousness statement

[0036] The core innovation of this invention is not a breakthrough in a single technical element, but rather a systematic integration and reconstruction of existing technical solutions that are scattered and each solves a single problem, forming a complete technical solution that addresses the pain points of the entire public service information transmission chain.

[0037] In the prior art, the design of public information graphic symbols, accessibility design, dynamic scheduling, and multilingual services belong to completely independent technical fields. Those skilled in the art typically only optimize technical solutions within their respective fields and have no motivation to integrate these scattered technologies across fields. Furthermore, they cannot anticipate the unexpected technical effect of "one set of codes, universal adaptation, and friendliness to all groups and ethnicities" that integration would produce. Therefore, the technical solution of this invention is not obvious to those skilled in the art.

[0038] Human factors engineering basis for mapping rules

[0039] The color and shape combinations in this invention are not arbitrarily specified, but rather based on a combination of visual psychology, physical optics, and human factors engineering.

[0040] High priority (red + circular): Red light has the longest wavelength and the strongest penetrating power, giving it the highest recognition priority at long distances or in adverse weather conditions; the circular outline symbolizes "completeness, closure, and compulsion" in visual psychology, forming a cognitive isomorphism with the high priority of "must-reach, certainty" service commitment, which can most quickly trigger the driver's "must stop" conditioned reflex.

[0041] Medium Priority (Blue + Square): Blue is a cool color that has a calming and rational psychological connotation; the square outline symbolizes "standardization, order, and stability," which matches the "responsive and conditionally deterministic" service logic of medium priority, prompting users to follow the rules when interacting.

[0042] Low priority (yellow + triangle): Yellow wavelength is in the middle and is often used for warning and attention; the triangle outline has "directionality and dynamism", which is highly consistent with the characteristics of low priority "flexible docking and non-fixed station".

[0043] Based on the specifications of GB / T 15608 "Chinese Color System" and GB / T 7921 "Uniform Color Space and Color Difference Formula", and using the sRGB standard color space, combined with the internationally recognized LMS color vision model for red-green color blindness simulation verification, the three sets of core visual codes of this invention have an outer frame shape and background brightness difference of ≥1.5:1 under the perspective of red-blindness and green-blindness. The outline recognition accuracy of circles, squares, and equilateral rounded triangles can reach over 98%. People with color vision impairment do not need to rely on color, but can accurately identify service priority only by shape differences, meeting the accessibility recognition requirements of the entire population.

[0044] The technical significance of multimodal and multilingual output

[0045] The voice broadcasting, multilingual translation, minority language text comparison, children's pinyin, and bilingual display of this invention are not simply additional functions, but rather a core extension and accessibility enhancement of the visual coding system:

[0046] Targeting the elderly and those with lower levels of literacy: Large print + voice + pinyin lower the barrier to understanding;

[0047] For ethnic minority groups: Provide their own written and spoken language to eliminate language barriers in ethnic minority areas;

[0048] For foreign nationals and cross-border workers: Provides multilingual translation and bilingual comparison;

[0049] For children: Provides pinyin assistance, combining guidance and educational functions;

[0050] For visually impaired individuals: Provides multilingual voice broadcasts to achieve full sensory information access.

[0051] This invention thus achieves a technological leap from a "single visual identifier" to a universal service system that benefits all people, all ethnic groups, all languages, and all scenarios. Attached Figure Description

[0052] Figure 1 Flowchart of the Overall Architecture of the General Four-Element Visual Encoding Dynamic Adaptation System

[0053] Figure 2 Visual encoding four elements and service priority mapping logic diagram

[0054] Figure 3 Flowchart of the general four-element visual coding dynamic adaptation method

[0055] Figure 4Schematic diagram of public transportation three-mode stop scenarios Detailed Implementation

[0056] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0057] like Figure 1 As shown, the system of this invention adopts a three-layer structure from top to bottom, including a data input layer, a core processing engine layer, and a multimodal output layer. The data input layer includes four input units: passenger flow intensity, station attributes, operational status, and environmental and regional language information; the core processing engine layer is a "general four-element visual coding dynamic adaptation engine", which internally includes a rule definition and dynamic adaptation module, a visual coding module, a general rule library, a graphic symbol library, and a multilingual and speech conversion unit; the multimodal output layer includes three output units: visual carrier, voice broadcast, and CAN bus linkage. Figure 1 The dashed line connecting the visual carrier and the rule definition and dynamic adaptation module is the real-time data feedback dynamic iteration link, which is used to send the running data from the output end back to the rule definition and dynamic adaptation module to realize the adaptive optimization of the system's coding rules.

[0058] like Figure 2 As shown, this invention establishes a unique binding mapping rule between service priority and visual elements: high priority corresponds to red and circular outlines, medium priority corresponds to blue and square outlines, and low priority corresponds to yellow and triangular outlines; the optimal embodiment is: high priority corresponds to high-saturation red and perfect circular outlines, medium priority corresponds to high-saturation blue and right-angled square outlines, and low priority corresponds to high-saturation yellow and equilateral rounded triangle outlines. The four elements are independent, parallel coding units with no hierarchy.

[0059] like Figure 3 As shown, the method of the present invention includes six steps: S1 data acquisition, S2 priority determination, S3 visual information unit generation, S4 accessibility verification and multimodal conversion, S5 output to carrier, and S6 continuous monitoring and dynamic iteration.

[0060] like Figure 4 As shown, this invention achieves dynamic adaptation of three modes in public transportation scenarios: the left side is high priority (proactive station entry and stop), with a red circular outline, where vehicles are forced to stop; the middle is medium priority (responsive station entry and stop), with a blue square outline, where vehicles stop on demand; and the right side is low priority (responsive stop or no station), with a yellow rounded triangle outline, where vehicles stop when flagged down.

[0061] I. System Hardware and Software Infrastructure

[0062] The system hardware includes a processor, memory, sensors, input devices, display terminals, voice broadcasting modules, CAN bus communication components, and a communication bus; the software is divided into a data acquisition layer, a threshold determination layer, an encoding generation layer, a speech synthesis layer, a multilingual and minority language conversion layer, and a rendering output layer, realizing full automation of the data acquisition, level determination, visual generation, speech and multilingual conversion, and multi-terminal output.

[0063] The system is equipped with a general rule storage module, which communicates and connects with the rule definition and dynamic adaptation module and the visual encoding module. It is used to solidify the global general mapping relationship table of storage service priority and color elements and outer frame shape elements, supports local offline retrieval and remote cloud updates, and ensures the consistency of mapping rules across scenarios and terminals.

[0064] II. Definition of the Four Elements of a Visual Information Unit

[0065] The color elements, outer frame shape elements, internal guide sign elements, and brief text elements are independent, parallel coding units with no hierarchy, collectively forming a complete visual information unit, as defined below:

[0066] Color elements: High-saturation red, blue, and yellow as the main colors, used for rapid long-distance perception of service priority.

[0067] Outer frame shape elements: circular, square, and triangular outlines, serving as the core identification channel for people with color vision disorders and conveying service certainty.

[0068] Internal guidance symbols: Priority is given to using the public graphic symbols specified in the current effective version of the GB / T 10001 series of national standards. These symbols serve as a replaceable semantic layer, used to convey scene actions and semantic information without affecting the identification and transmission of service priority.

[0069] Brief text elements: Short text supplementary explanations, which can be simultaneously converted into voice broadcast, multilingual translation, minority language text comparison, children's pinyin comparison, and bilingual display, realizing integrated prompts of text, sound, multiple languages, and multiple ethnicities.

[0070] III. Specific Shape Limitations of the Preferred Embodiment

[0071] In the optimal embodiment, the ratio of the radius R to the side length L of the equilateral rounded triangle corresponding to the low priority is 1:8 to 1:5, with the optimal ratio being 1:6.

[0072] Less than 1:8: The shape is too sharp, visually aggressive, and does not meet the requirements of public service friendliness;

[0073] A ratio greater than 1:5: The shape approaches a circle, losing the directional and flexible semantics of a triangle;

[0074] This range represents the optimal balance between visual identity and public friendliness.

[0075] The right-angled square outline is a square with an aspect ratio of 1:0.9 to 1:1, with the optimal aspect ratio being a square of 1:1. Rectangles with aspect ratios exceeding the range of 1:0.8 to 1:1.2 are excluded to ensure consistency in outline recognition across scenes and to create a clear visual distinction from circles and triangles.

[0076] IV. Definition of Passenger Flow Intensity

[0077] The passenger flow intensity at a station refers to the average number of passengers boarding and alighting or waiting at that station during a single trip (or within a unit of time T), as statistically obtained by the system through passenger flow counting sensors, card swiping data from onboard card readers, or video AI recognition algorithms. For example, when the system detects that the average number of passengers boarding at a station during the morning peak period consistently exceeds 15 per trip, it determines that the station is of high priority, triggering a red circular visual code and mandatory stopping logic.

[0078] The preset safety range for adaptive threshold adjustment refers to a pre-defined threshold fluctuation range that conforms to industry operation standards and safety requirements. Different application scenarios can set corresponding adaptive threshold safety ranges according to industry rules and operational needs. For example, in public transportation scenarios, the safety range for high-priority passenger flow thresholds is ≥10 people / shift and ≤20 people / shift, while the safety range for medium-priority passenger flow thresholds is 3 to 15 people / shift. This avoids automatically optimized thresholds exceeding reasonable ranges, which could lead to operational logic chaos and failure to fulfill service commitments.

[0079] V. Example 1: Dynamic Adaptation of Three Modes for Public Transportation Stops Across the Entire Area

[0080] This embodiment is a preferred application of claims 1-6 and 20-22, specifically addressing the technical shortcomings of the public transportation industry, such as single-response stopping, language barriers in ethnic minority areas, and difficulties in use by vulnerable groups.

[0081] Existing technological defects

[0082] Single-response docking has problems such as cognitive interaction barriers, high service thresholds, poor scenario adaptability, insufficient accessibility coverage, and lack of multilingual support, making it difficult for the elderly, children, visually impaired passengers, ethnic minorities, and foreign nationals to use.

[0083] Three-mode system and visual coding implementation

[0084] (1) Proactive station entry and stop (high priority + high certainty)

[0085] Judgment criteria: urban core hubs, hospitals, schools, large communities, and key livelihood nodes; passenger flow intensity ≥ 15 people / shift, or historical station missed stop rate ≥ 1%.

[0086] Visual encoding: red + circular outline, text elements labeled with service description, synchronous output of voice broadcast, multilingual translation, minority language text comparison, children's pinyin comparison, and bilingual display.

[0087] Technical effect: Vehicles are forced to stop without passengers having to wave or press a bell, ensuring fairness and universality of public services and completely solving the problem of missed stops at stations.

[0088] (2) Responsive inbound parking (medium priority + conditional determinism)

[0089] Judgment criteria: urban secondary arterial roads, regular bus stops, and medium-passenger-flow stops in urban-rural fringe areas; passenger flow intensity of 3 to 15 people per trip.

[0090] Visual encoding: Blue + right-angled square outline, with waving or bell-ringing signs superimposed inside, text elements to indicate operation instructions, and simultaneous output of multiple languages ​​and Pinyin assistance.

[0091] Technical benefits: Vehicles can park on demand, and unified interaction rules solve the problem of misaligned information interaction when "vehicles hesitate and people are confused," thereby improving operational efficiency.

[0092] (3) Responsive docking or no site (low priority + high flexibility)

[0093] Judgment criteria: remote rural road sections, the end of industrial parks, areas without physical bus stops, and areas inhabited by ethnic minorities; passenger flow intensity < 3 people / trip.

[0094] Visual encoding: Yellow with an equilateral rounded triangle outline, combined with the spraying of virtual parking areas on the ground, text elements labeling service rules, and simultaneously switching to ethnic languages ​​and bilingual modes.

[0095] Technical benefits: It breaks through the limitations of bus stops, enabling passengers to hail a ride, covering the last mile of travel, and meeting the travel needs of rural and ethnic minority areas.

[0096] Dynamic adaptation advanced mechanism

[0097] The system supports real-time data-triggered automatic upgrades and downgrades: on market days and during morning and evening peak hours, when passenger flow surges, it automatically upgrades to the red mandatory stop mode; for stations with consistently low passenger flow, it automatically downgrades to the blue response mode, achieving precise matching of capacity and demand.

[0098] Implementation effect

[0099] This embodiment achieves a leap from "single and rigid" to "comprehensive and refined" public transportation operation through deep collaboration between dynamic scheduling and visual coding system. It takes into account the four core objectives of fairness, efficiency, coverage, and multilingual accessibility, forming a standardized integrated operation solution that combines visual, auditory, multilingual, and multi-ethnic elements. This solves the problem of balancing operational efficiency and service inclusiveness, which cannot be achieved simultaneously by existing technologies.

[0100] VI. Extended Application Examples

[0101] Example 2: Global Visual Coding for Emergency Rescue Scenarios

[0102] This embodiment is applied to emergency situations such as earthquakes, floods, and fires. The voice broadcast supports multiple languages, ethnic languages, and dialects, and the pinyin comparison is suitable for children and people with low literacy levels.

[0103] High priority (life-saving): Red + perfect circle, with an internal emergency cross symbol;

[0104] Medium priority (material support): Blue with a right-angled square, internal material box label;

[0105] Low priority (convenience services): Yellow with rounded triangle, internal rest area sign.

[0106] A single coding system enables unified information transmission across the entire area and among all people at emergency sites, resolving issues such as confusing signage, language barriers, and low information transmission efficiency.

[0107] Example 3: Visual Coding of Medical Service Scenarios

[0108] High priority (emergency treatment): Red + perfect circle, used in emergency rooms and resuscitation rooms;

[0109] Medium priority (routine diagnosis and treatment): Blue with right-angled square, used for general outpatient clinics and specialist examinations;

[0110] Low priority (convenience services): Yellow with rounded triangle, used for information desks and self-service equipment areas.

[0111] It achieves unified visual communication across all service levels in the hospital, reducing patients' cognitive costs, while also providing multilingual, minority language, and voice broadcasts to meet the medical needs of the entire population.

[0112] Example 4: Personal Digital Asset Management Example

[0113] Red circle: Core contracts and key information, automatically pinned and encrypted;

[0114] Blue right-angled squares: Work templates and study materials, categorized and stored;

[0115] Yellow rounded triangle: Archives, temporary files, deep archives.

[0116] A hierarchical management system for personal digital assets is achieved through a single codebase, reducing the cognitive cost of file management for users and improving management efficiency.

[0117] Example 5: Physical Item Storage and Management Example

[0118] Red circular label: High-frequency necessities, in easily accessible areas;

[0119] Blue right-angled square label: Special items, store in designated areas;

[0120] Yellow rounded triangle label: Unused spare items, deep storage.

[0121] To establish unified rules for the organization of items in home and office settings, thereby improving organization efficiency and the ease of finding items.

[0122] Example 6: Business Operations and Store Services Example

[0123] High priority: Red + perfect circle, used for best-selling products, cash registers, and core service areas;

[0124] Medium priority: Blue + right-angled square, used for regular goods and general service areas;

[0125] Low priority: Yellow with rounded triangle, used for promotional areas and event locations.

[0126] By using a unified visual code to convey the service levels of a store, we can reduce the cognitive cost for consumers and improve the efficiency and conversion rate of store operations.

[0127] Example 7: Visual Coding of Campus Scenes

[0128] High priority (safety and emergency): Red + perfect circle, used for school hospital, fire exits, and emergency shelters;

[0129] Medium priority (regular service): Blue with right angles, used for classrooms, libraries, and teaching buildings;

[0130] Low priority (convenience assistance): Yellow with rounded triangle, used for drinking water areas, rest areas, and convenience stores.

[0131] It achieves unified visual communication across all service levels on campus, while also providing pinyin matching and voice broadcasting to meet the needs of younger students and students with special needs.

[0132] VII. Multimodal and Multilingual Output Hardware Logic

[0133] The visual encoding module achieves full-modal output through the underlying driver:

[0134] Speech synthesis: It calls a TTS engine or an external speech chip to output Mandarin, dialects, minority languages, and foreign languages.

[0135] Multilingual and ethnic language conversion: Translation and bilingual comparison display are achieved through local databases or remote APIs;

[0136] Pinyin generation: Automatically adds pinyin to text for children, assisting young children and those with low literacy levels in recognition;

[0137] Control linkage: Control commands such as "forced entry" and "deceleration" are sent to the vehicle via the CAN bus to achieve coordinated adaptation between visual coding and operational actions.

[0138] VIII. Explanation of Equivalent Substitutions

[0139] The core of this invention lies in establishing a universal mapping rule across all scenarios that is uniquely bound to service priority and service determinism level through the combination of color and outline shape. Internal graphics, text languages, ethnic language types, display carriers, and broadcast voice types can all be replaced and extended. Any technical solution that uses a combination of visual encoding elements to generate dynamic visual identifiers based on a mapping rule that corresponds one-to-one with service priority, and achieves adaptation across all scenarios, all user groups, all languages, and all ethnicities, falls within the equivalent protection scope of this invention.

[0140] Those skilled in the art can modify the shape details by adding rounded corners to a square, removing rounded corners from a triangle, replacing it with an asymmetrical shape, or adjusting the length-width / minor axis ratio, etc., but the core still uses the "color-shape combination and service priority uniquely bound universal mapping rule" of this invention to realize the core functions of service hierarchy transmission and barrier-free recognition of the entire population. All of these are equivalent alternatives to this invention and fall within the scope of protection.

Claims

1. A general four-element visual coding dynamic adaptation system, characterized in that, include: The rule definition and dynamic adaptation module is used to collect real-time operational data and scenario data, and determine the service priority and service deterministic level of the current scenario through a threshold judgment algorithm. Service priorities are divided into three levels: high, medium, and low, which are bound one-to-one with the service determinism level. The visual encoding module is used to perform a four-element combination encoding operation based on the rule definition and the adaptation decision output by the dynamic adaptation module: based on the currently determined service priority, it synchronously matches the corresponding color element, outer frame shape element, internal guide sign element, and brief text element. The four elements are independent and parallel encoding units with no hierarchy. Any core element can independently and completely convey service priority information and combine to generate a unified visual information unit. The combination of the color element and the outer frame shape element forms a unique and non-overlapping universal mapping rule with the service priority. The two constitute a "color + shape dual encoding mechanism" to ensure that people with color vision impairment can identify service levels through shape differences. Among them, high-priority scenes are uniquely associated with highly saturated red and circular outlines, medium-priority scenes are uniquely associated with highly saturated blue and square outlines, and low-priority scenes are uniquely associated with highly saturated yellow and triangular outlines. The display control module is used to output visual information units to one or more display carriers and to perform communication and interaction with external hardware.

2. The system according to claim 1, characterized in that, The optimal implementation of the mapping rule is as follows: In high-priority scenes, the only association is between highly saturated red and a perfectly circular outline; In medium-priority scenes, the only associated element is a highly saturated blue color and a right-angled square outline. In low-priority scenes, the only associated element is a highly saturated yellow color and an equilateral rounded triangle outline. The ratio of the radius R of the equilateral rounded triangle to the side length L is 1:8 to 1:5, with the optimal ratio being 1:

6.

3. The system according to claim 2, characterized in that, The right-angled square outline is a rectangle, preferably a square with an aspect ratio of 1:0.9 to 1:1, and most preferably a square with an aspect ratio of 1:1; the right-angled square outline excludes rectangles with an aspect ratio exceeding the range of 1:0.8 to 1:1.

2.

4. The system according to claim 1, characterized in that, The circular contours include perfect circles and near-circular ellipses with a major-to-minor axis ratio of 1:0.95 to 1:1.05, excluding flat ellipses whose major-to-minor axis ratios exceed this range and cannot guarantee the consistency of contour recognition; among them, perfect circles are the optimal embodiment.

5. The system according to claim 1, characterized in that, The square-shaped outline includes right-angled squares and rounded squares, with the right-angled square being the preferred embodiment.

6. The system according to claim 1, characterized in that, The triangular contours include equilateral triangles and isosceles triangles, covering rounded triangles and apical triangles, with equilateral rounded triangles being the optimal embodiment; isosceles triangles with a ratio of leg length to base length exceeding the range of 1:0.8 to 1:1.2 are excluded to ensure consistency in contour recognition across scenes.

7. The system according to claim 2, characterized in that, The high priority corresponds to a highly deterministic guaranteed service value commitment, the medium priority corresponds to a conditionally deterministic response service value commitment, and the low priority corresponds to a highly flexible reachable service value commitment. The high-priority triggering conditions are: station passenger flow intensity ≥ 15 people / shift, station label is a core public service node such as hub, hospital, school, or historical station missed stop rate ≥ 1%; the station label can be automatically identified and obtained through preset markers and geographic information point of interest data; The medium-priority triggering conditions are: station passenger flow intensity of 3-15 people / shift, and regular main road stations; Low-priority triggering conditions are: station passenger flow intensity < 3 people / shift, rural road section or area without physical platform.

8. The system according to claim 1, characterized in that, It also includes a full-domain graphic symbol database that communicates with the visual encoding module. This database stores the public graphic symbols specified in the current valid versions of the GB / T 10001 series of national standards for various industries and scenarios. It supports on-demand retrieval and remote updates. The internal guidance identifier is a replaceable semantic layer that does not affect the identification and transmission of service priority.

9. The system according to claim 1, characterized in that, It also includes a general rule storage module that communicates with the rule definition and dynamic adaptation module. This module stores the mapping relationship table between storage priority and color elements and outline shape elements, and supports remote updates and local retrieval.

10. The system according to claim 1, characterized in that, All color elements are presented with high saturation, and the color areas are free of gradients, shadows, and noise. The three primary colors of red, blue, and yellow adopt the standard color values ​​specified in GB / T 15608 "Chinese Color System". The color value space conforms to the sRGB standard color space requirements specified in IEC 61966-2-1. Under different display media and ambient lighting conditions, the hue deviation is ≤5% and the chroma deviation is ≤10%, maintaining consistent recognition.

11. The system according to claim 1, characterized in that, The visual encoding module has a built-in background color adaptive switching unit: when the background color of the display carrier is transparent, the outline of the outer frame shape element, the graphic lines of the internal guide sign element, and the font of the brief text element are all forced to be presented in black; in strong light or complex background scenes, it automatically switches to white background to ensure recognition clarity.

12. The system according to claim 1, characterized in that, The visual contrast between the outer frame shape elements, internal directional sign elements, and brief text elements and the background color of the display carrier shall not be less than 4.5:1, meeting the requirements of GB 50763 "Code for Accessibility Design", GB 55019 "General Code for Accessibility in Building and Municipal Engineering" or WCAG 2.1 AA level accessibility standard.

13. The system according to claim 1, characterized in that, Under simulated viewing conditions for red-blind or green-blind individuals in accordance with the national standard GB / T 7921 "Uniform Color Space and Color Difference Formula", the brightness difference between the outer frame shape elements and the background color remains at no less than 1.5:1, ensuring the effectiveness of identification for people with color vision impairment.

14. The system according to claim 1, characterized in that, When the display medium is hand-painted or spray-painted, the visual encoding module can generate spray-paint template data with outline positioning auxiliary lines and color filling guidance information.

15. The system according to claim 1, characterized in that, The background area of ​​the visual information unit has no decorative elements to ensure consistent recognition across different scenes.

16. The system according to claim 1, characterized in that, The display control module connects to the display carrier via TCP / IP, Bluetooth, and NFC protocols, eliminating the need for hardware modifications to the existing carrier.

17. The system according to claim 1, characterized in that, The rule definition and dynamic adaptation module has a built-in threshold adaptive adjustment function, which can automatically optimize the judgment threshold based on the changes in operational data over 7 consecutive days. The optimized threshold does not exceed the preset safety range, thus realizing the automatic upgrading and downgrading of service priority.

18. The system according to claim 1, characterized in that, The visual information units generated by the visual encoding module are in vector format, which can be losslessly adapted to display carriers of any size and resolution.

19. The system according to claim 1, characterized in that, The rule definition and dynamic adaptation module supports user-defined tagging modes: it receives user instructions on the hierarchical tagging of target objects, generates corresponding visual tags according to mapping rules, and realizes hierarchical differentiation of target objects.

20. The system according to claim 1, characterized in that, The rule definition and dynamic adaptation module supports dynamic iteration: when real-time data triggers a preset threshold, the service priority is automatically updated, and the color and outline shape of the visual information unit are updated synchronously.

21. The system according to claim 1, characterized in that, The visual encoding module also includes a speech synthesis unit and a multilingual conversion unit; the multilingual conversion unit supports real-time switching and bilingual comparison display of simplified Chinese, traditional Chinese, foreign languages, and minority languages, and automatically generates pinyin comparison text for children; by calling the system's TTS engine or an external speech chip, it can simultaneously output Mandarin, dialects, minority languages, and foreign language voice broadcasts.

22. The system according to claim 1, characterized in that, The display control module can send control commands to the vehicle's CAN bus to achieve linkage between visual encoding and operational actions, and complete the coordinated adaptation of multimodal output and vehicle operating status.

23. The system according to claim 1, characterized in that, The number of service priority levels can be expanded according to scenario requirements. Each expanded level corresponds to a unique combination of color elements and outer frame shape elements, following the universal mapping rules of this invention.

24. A general four-element visual coding dynamic adaptation method, characterized in that, Includes the following steps: S1: Collect real-time operational and environmental data for the current scenario; S2: Based on data thresholds and universal rules for all scenarios, determine the service priority and service determinism level for the current scenario. The service priority is divided into three levels: high, medium, and low, and is bound to the service determinism level one by one. S3: Based on the currently determined service priority, perform a four-element combination coding operation: synchronously match the corresponding color element, outer frame shape element, internal guide sign element, and brief text element. The four elements are independent and parallel coding units with no hierarchy. Any core element can independently and completely convey service priority information and combine to generate a unified visual information unit. The combination of the color element and the outer frame shape element forms a unique and non-overlapping universal mapping rule with the service priority. The two constitute a "color + shape dual coding mechanism". Among them, high priority corresponds to red + circular outline, medium priority corresponds to blue + square outline, and low priority corresponds to yellow + triangle outline. S4: Perform accessibility dual coding verification on the generated visual information units to ensure compliance with accessibility recognition standards for the entire population; and convert the brief text elements into voice broadcast, multilingual translation, minority language text comparison, children's pinyin comparison, and bilingual display content to form an integrated prompt that combines text, sound, multiple languages, and multiple ethnicities; S5: Output the verified visual information units to the display carrier to convey the service determinism level; S6: Continuously monitors real-time data, automatically updates service priority and corresponding visual coding when preset thresholds are triggered, and simultaneously sends back runtime data for rule iteration and optimization.

25. The method according to claim 24, characterized in that, The optimal implementation of the mapping rule in step S3 is as follows: high priority is associated with red + a perfect circle, medium priority is associated with blue + a right-angled square, and low priority is associated with yellow + an equilateral rounded triangle, with the ratio of the rounded corner radius to the side length being 1:8 to 1:

5.

26. The method according to claim 25, characterized in that, The visual information units generated in step S3 meet the contrast ratio of ≥4.5:1, which complies with GB 50763 "Code for Accessibility Design", GB 55019 "General Code for Accessibility in Building and Municipal Engineering" or WCAG 2.1 AA level accessibility standard.

27. The method according to claim 24, characterized in that, The number of service priority levels can be expanded according to scenario requirements. Each expanded level corresponds to a unique combination of color elements and outer frame shape elements, following the universal mapping rules of this invention.

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