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CN-122024503-A - Self-regulation and distribution method for traffic guidance screen content

CN122024503ACN 122024503 ACN122024503 ACN 122024503ACN-122024503-A

Abstract

The invention relates to the technical field of traffic control systems and discloses a self-regulation and distribution method of traffic guidance screen contents, which comprises the steps of carrying out natural language processing on input data, identifying key entities and calculating semantic weights, constructing a traffic information semantic model, dynamically generating a visual streamline mode according to display characteristics, environmental conditions and hardware characteristics of a guidance screen in combination with the semantic weights, carrying out dynamic rendering optimization, dynamically dividing grid units based on screen sizes and semantic densities, distributing contents to grids according to semantic weight descending order, carrying out dynamic regulation, packaging the rendered contents into data packets according to screen IDs, embedding control commands, display strategies and semantic folding marks, solving the problems of poor typesetting adaptation and low efficiency in the prior art, and achieving the purposes of self-adaptive display, high-efficiency content processing and high release efficiency.

Inventors

  • TIAN RONGGANG
  • JI XINWEI

Assignees

  • 杭州五湖电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260126

Claims (10)

  1. 1. The method for automatically regulating and distributing the traffic guidance screen content is characterized by comprising the following steps of: Carrying out natural language processing on the input data, identifying key entities and calculating semantic weights, and constructing a traffic information semantic model; Dynamically generating a visual streamline mode according to display characteristics, environmental conditions and hardware characteristics of an induction screen and combining semantic weights to perform dynamic rendering optimization; Packaging the rendered content into a data packet according to the screen ID, and embedding a control command, a display strategy and a semantic folding mark; and determining a logic dependency relationship based on the induction screen space topological map, and cooperatively distributing the package and the playing time sequence according to the upstream and downstream sequence.
  2. 2. The method for automatically regulating and distributing the traffic guidance screen content according to claim 1, wherein the step of distributing the content to the grids in descending order of semantic weights comprises the steps of sorting semantic units in descending order of heat values, distributing highest heat value units to vision focus grids, distributing next highest heat value units to adjacent grids in streamline directions, wherein when the heat value of each unit is larger than a set threshold, a plurality of grid spaces are occupied, and when the heat value of each unit is smaller than an unfolding threshold, folding and displaying the units as an unfolding icon.
  3. 3. The method for self-regulating and distributing traffic guidance screen content according to claim 1 or 2, wherein the display characteristics include resolution and aspect ratio, physical size and preset viewing distance, the environmental conditions include environmental illumination intensity, a word size is dynamically adjusted based on the environmental illumination intensity and the preset viewing distance, the basic word size is calculated based on the viewing distance and the screen resolution and is reduced as the illumination intensity is reduced so that the minimum discernable viewing angle is greater than or equal to a preset value, and the dynamic rendering optimization comprises designing an antialiasing algorithm or a sub-pixel rendering optimization algorithm for a dot matrix LED screen to improve the definition of small fonts at low resolution.
  4. 4. The method for self-regulating and distributing traffic guidance screen content according to claim 3, wherein the embedding of the control command and the display policy and the semantic folding mark comprises the control command indicating immediate play or timed play, the display policy comprising priority and duration, the semantic folding mark identifying foldable content including low-calorie content.
  5. 5. The method for automatically regulating and distributing the traffic guidance screen content according to claim 2, wherein the calculating of the semantic weight comprises the step of calculating the heat value of each semantic unit in a weighted manner based on the word frequency inverse document frequency standardized value, the semantic similarity and the emotion intensity score, wherein the word frequency inverse document frequency standardized value represents importance in traffic information, the semantic similarity is calculated based on a deep semantic model, and the emotion intensity score represents urgency.
  6. 6. The method for automatically regulating and distributing content of a traffic guidance screen according to claim 4 or 5, wherein the step of determining a logical dependency relationship by using the guidance screen space topology map comprises maintaining a geographical position of the guidance screen and a road network logical relationship, wherein the logical relationship comprises an association of an upstream screen, an accident point screen and a bypass prompting screen, and when an accident event is issued, a group of content logically progressive packages are generated and distributed to the guidance screen on a critical path preferentially, wherein the priority order is the accident point screen, the upstream early warning screen and the bypass prompting screen.
  7. 7. The method for automatically controlling and distributing content of traffic guidance according to claim 5, wherein in the natural language processing of the input data, high-weight entities are reserved in a semantic weight descending order for the portion exceeding the display capacity of the screen, and low-weight entities are replaced by folding marks.
  8. 8. The method for self-regulating and distributing content of traffic guidance screen according to claim 6, wherein the logic relationship comprises geographic position of guidance screen and upstream and downstream logic association in road network, when accident event is issued, three groups of packets are generated according to the topology relationship, including upstream screen issuing early warning information, accident screen describing road sealing details, bypass prompt screen indicating bypass route, and distribution time sequence of the packets of the upstream screen and bypass prompt screen is later than that of the accident screen.
  9. 9. The method for self-regulating and distributing traffic guidance screen content according to claim 7 or 8, wherein the dynamically generating visual streamline mode comprises selecting a mode according to an aspect ratio of the guidance screen, wherein the mode is a zigzag mode when the aspect ratio is greater than or equal to 1.5, a golden spiral mode when the aspect ratio is between 1 and 1.5, and a P-type mode when the aspect ratio is less than or equal to 1.
  10. 10. The method for self-regulating and distributing content of a traffic guidance screen according to claim 9, wherein the dynamically dividing grid cells based on screen size and semantic density comprises calculating grid columns based on screen diagonal size, wherein the grid columns range from 3 to 8, dynamically adjusting grid cell height based on standard deviation of semantic density and heat value, and increasing cell height with increasing semantic cell heat value.

Description

Self-regulation and distribution method for traffic guidance screen content Technical Field The invention relates to the technical field of traffic control systems, in particular to a traffic control system of a road vehicle. Background Along with the promotion of smart city construction, the traffic guidance screen is widely deployed in areas such as urban roads, highways, toll stations, tunnel gates and the like as an important terminal for releasing road traffic information. The system is used for releasing contents such as real-time traffic information, temporary traffic control, construction warning, accident prompt and the like, and plays an important role in relieving traffic pressure and guiding vehicles to pass. However, the physical and display characteristics of the traffic guidance screen show a high isomerization tendency, and the traffic guidance screen is mainly characterized in that the resolution difference is large, such as common 128×64, 192×96, 256×128, 512×128 and the like, the aspect ratio is different, a horizontal screen, a vertical screen and a square screen coexist, the color display capability is different, a single red is supported, a three primary color is supported, a full color is supported, the character spacing and the customization degree of a font library are different, a part of the guidance screen uses a dot matrix font, and a loadable vector font library is used. The above difference results in that in the actual content making and publishing process, the corresponding content typesetting style needs to be manually designed for each screen, so that the integrated processing cannot be performed, the efficiency is low, and the error rate is high. The traffic guidance screen control system on the market generally has the following characteristics that a fixed format template is adopted, screen typesetting content is of a static structure, the content template is required to be designed manually according to target screen resolution in advance, content size depends on manual cutting, particularly, when the screen resolution is limited, the character length exceeds the screen display capacity, characters are required to be manually deleted or character sizes are required to be adjusted, the content distribution mode lacks uniform scheduling, most systems need to log in each device to respectively issue the content, the 'multi-screen one-key issue' capability is lacking, the content style lacks uniformity, the font size, the color style and the image-text layout of the same content on different screens are lack of standardization, and readability and the identification efficiency of citizens on the guidance content are reduced. For example, the Chinese patent with publication number CN117523878A discloses a plan management and release method of traffic guidance control, and provides the following technical scheme, the invention discloses a plan management and release method of traffic guidance control, which belongs to the traffic field, and realizes the configuration of all devices, thereby saving the development time of the control scheme, reducing the requirement on the technical capability of control platform developers and saving the cost; can be continuously adjusted and optimized according to the actual operation management condition. The system mainly comprises a plurality of traffic guidance screens, a controller and an operation terminal, wherein the traffic guidance screens are used for displaying prompt information, the traffic guidance screens are connected with the controller through a network module, the operation terminal is connected with the controller, an operation display screen of the operation terminal is used for managing and publishing plans, a road model displayed by the operation display screen of the operation terminal is identical to a road, and the traffic guidance screens are visually distributed on the road model. The method is mainly used for traffic guidance control plan management and release. The traffic guidance control plan management and release method cannot realize self-adaptive typesetting, content is easy to cut off or redundant, semantic analysis and environment optimization are lacked, display discomfort is easy to cause, meanwhile, the distribution efficiency of the patent is low, a multi-screen style cannot be unified, manual operation is relied, and response is slow. Disclosure of Invention The invention solves the problems of non-adaptation of typesetting, non-uniform style of multiple screens and low production and release efficiency in the prior art, and provides the automatic regulation and release method for the traffic guidance screen content, so as to achieve the purposes of self-adaptive display, high-efficiency content processing and high release efficiency. Furthermore, the invention solves the problems of key information loss, multi-screen display cracking and response delay in the traditional scheme through semantic i