Arabic character dot matrix transmission method, system, medium and product

Abstract

A method, system, medium, and product for transmitting Arabic character dot matrix data are disclosed, relating to the field of data processing technology. The method includes: acquiring the dot matrix specifications of the Arabic string to be processed and the target LED display screen; identifying the context position of each Arabic character in the string to be processed using a preset syntax parsing algorithm; determining the character form of each Arabic character based on its context position using preset Arabic character morphology rules, generating a character form sequence; converting the string to be processed into raw dot matrix data based on the dot matrix specifications and the character form sequence; compressing the raw dot matrix data using a preset compression algorithm to generate compressed dot matrix data; dynamically adjusting the data transmission configuration based on the data transmission protocol of the target LED display screen, and sending the compressed dot matrix data to the target LED display screen. This application enables accurate and efficient operation of Arabic character dot matrix transmission.

Description

Technical Field

[0001] This application relates to the field of data processing technology, and in particular to a method, system, medium, and product for transmitting Arabic character dot matrix data. Background Technology

[0002] In the field of LED information display technology, Android-based tablets are widely used as control terminals to send content to LED displays due to their ease of operation and good interactivity. Especially in scenarios requiring the dissemination of multilingual information, the demand for display support for complex scripting languages ​​such as Arabic is increasing. However, existing general-purpose technical solutions generally have shortcomings when handling Arabic characters. Arabic has unique writing rules; its letters have four different forms depending on their position in a word: independent, initial, middle, and final, and letters need to be connected. Conventional dot matrix transmission methods typically use simple direct mapping conversion, which completely ignores the contextual morphological changes and connected stroke characteristics of Arabic characters. This results in incorrect character shapes, broken strokes, and separated connections when displayed on the LED screen, making the overall text fragmented and severely affecting the readability and accurate transmission of information. Furthermore, without targeted compression and optimization of Arabic character dot matrix data, the data volume is large, and transmission latency is high in limited bandwidth communication links, making it difficult to achieve accurate and efficient operation of Arabic character dot matrix transmission. Summary of the Invention

[0003] This application provides a method, system, medium, and product for transmitting Arabic character dot matrix data, which addresses the technical problem of how to achieve accurate and efficient transmission of Arabic character dot matrix data.

[0004] In a first aspect, embodiments of this application provide a method for transmitting Arabic character dot matrix data, including: Obtain the dot matrix specification parameters of the Arabic string to be processed and the target LED display screen, wherein the Arabic string to be processed includes multiple Arabic characters; The algorithm uses a pre-defined syntax parsing algorithm to identify the context position of each Arabic character in the string to be processed. Based on the context positions, the character form of each Arabic character is determined by a preset Arabic character morphology rule, and a character form sequence is generated; Based on the dot matrix specification parameters and the character shape sequence, the string to be processed is converted into raw dot matrix data; The original dot matrix data is compressed using a preset compression algorithm to generate compressed dot matrix data. Based on the data transmission protocol of the target LED display screen, the data transmission configuration is dynamically adjusted, and the compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can decompress and display the compressed dot matrix data.

[0005] Optionally, the character form includes independent characters, initial characters, middle characters, and final characters. The step of determining the character form of each Arabic character based on its context position using preset Arabic character form rules to generate a character form sequence includes: identifying the connection relationship between a target Arabic character and adjacent characters based on the preset Arabic character form rules, where the target Arabic character is any Arabic character and the adjacent characters include left and right adjacent characters; when there is no connection relationship between the target Arabic character and its adjacent characters, the character form of the target Arabic character is determined to be an independent character; when there is no connection relationship between the target Arabic character and its adjacent characters, the character form of the target Arabic character is determined to be an independent character; when there is no connection relationship between the target Arabic character and its left and right adjacent characters... When the adjacent characters have the connection relationship but the right adjacent character does not have the connection relationship, the character form of the target Arabic character is determined to be the word beginning body; when the target Arabic character does not have the connection relationship with the left adjacent character but has the connection relationship with the right adjacent character, the character form of the target Arabic character is determined to be the word ending body; when the target Arabic character has the connection relationship with both adjacent characters, the character form of the target Arabic character is determined to be the word middle body; based on the character forms of each Arabic character, the character form sequence is generated according to the character order of the Arabic string to be processed.

[0006] Optionally, the step of converting the string to be processed into raw dot matrix data based on the dot matrix specification parameters and the character shape sequence includes: determining the target vector glyph corresponding to the target Arabic character based on the character shape sequence; performing contour sampling on the target Arabic character based on the dot matrix specification parameters to obtain the contour pixel set of the target Arabic character; filling the contour pixel set with a preset pixel completion algorithm to generate the initial character dot matrix of the target Arabic character; and performing pixel connection and smoothing processing on adjacent initial character dot matrices in all the initial character dot matrices according to the character order based on the character shape sequence to generate the raw dot matrix data.

[0007] Optionally, the step of filling the contour pixel set with a preset pixel completion algorithm to generate the initial character dot matrix of the target Arabic character includes: constructing multiple polygonal contours based on the contour pixel set, taking the pixels located inside each polygonal contour as internal pixels to generate an internal pixel set; filling all gap pixels with a linear interpolation algorithm to generate a smooth edge pixel set, wherein the gap pixels are pixels between adjacent polygonal contours; combining the internal pixel set and the smooth edge pixel set to obtain the filled character region of the target Arabic character; and mapping the filled character region to the pixel matrix corresponding to the dot matrix specification parameters to generate the initial character dot matrix of the target Arabic character.

[0008] Optionally, the step of compressing the original dot matrix data using a preset compression algorithm to generate compressed dot matrix data includes: based on the original dot matrix data, identifying and distinguishing the pixel data of the connected stroke region representing the transition between characters and the pixel data of the non-connected stroke region representing the main body of the character; encoding the pixel data of the connected stroke region using a first preset compression algorithm to obtain compressed connected stroke region pixel data; encoding the pixel data of the non-connected stroke region using a second preset compression algorithm to obtain compressed non-connected stroke region pixel data, wherein the compression ratio of the second preset compression algorithm is greater than the compression ratio of the first preset compression algorithm; and generating the compressed dot matrix data based on the compressed connected stroke region pixel data and the compressed non-connected stroke region pixel data.

[0009] Optionally, the step of dynamically adjusting the data transmission configuration based on the data transmission protocol of the target LED display includes: sending a preset parameter query handshake instruction to the target LED display; receiving and parsing the response data packet of the target LED display to the preset parameter query handshake instruction, wherein the response data packet encapsulates the data transmission protocol, which is used to characterize the hardware parameter requirements of the target LED display; and dynamically adjusting the data transmission configuration based on the hardware parameter requirements to achieve synchronization of the data transmission protocol.

[0010] Optionally, the method further includes: sending the compressed dot matrix data to the target LED display screen, so that the target LED display screen can, based on the data transmission protocol, use a preset decompression algorithm to losslessly restore the compressed dot matrix data to the original dot matrix data, wherein the original dot matrix data includes multiple initial character dot matrices; The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen generates a dynamic rendering offset based on the preset Arabic character typesetting data and applies it to each of the initial character dot matrices to generate a dot matrix to be displayed. The preset Arabic character typesetting data is used to characterize the reference spacing between each of the initial character dot matrices and the pixel overlap rules of the ligature area. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can obtain the ambient light intensity value of the deployment location of the target LED display screen, and map the ambient light intensity value to the target display brightness level based on the preset visual comfort curve model; The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen dynamically adjusts the pixel driving parameters based on the target display brightness level to obtain the target pixel driving parameters; The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen displays the dot matrix to be displayed based on the target pixel driving parameters through a preset driving circuit.

[0011] Optionally, the method further includes: monitoring the real-time link status through a preset heartbeat mechanism; when the link status is interrupted, performing a reconnection operation and retransmitting the compressed dot matrix data that was not confirmed to have been successfully transmitted.

[0012] In a second aspect, embodiments of this application provide an Arabic character dot matrix transmission system, which includes: one or more processors and a memory; the memory is coupled to the one or more processors, and the memory is used to store computer program code, which includes computer instructions, and the one or more processors call the computer instructions to cause the Arabic character dot matrix transmission system to perform the method described in the first aspect and any possible implementation thereof.

[0013] Thirdly, embodiments of this application provide a computer program product containing instructions that, when the computer program product is run on an Arabic character dot matrix transmission system, cause the Arabic character dot matrix transmission system to perform the method described in the first aspect and any possible implementation thereof.

[0014] Fourthly, embodiments of this application provide a computer-readable storage medium including instructions that, when executed on an Arabic character dot matrix transmission system, cause the Arabic character dot matrix transmission system to perform the method described in the first aspect and any possible implementation thereof.

[0015] In summary, one or more technical solutions provided in this application have at least the following technical effects or advantages: 1. By acquiring Arabic strings and combining them with dot matrix specification parameters, syntax parsing and morphological sequence generation are performed on the control terminal side to achieve accurate morphological recognition and dot matrix conversion of Arabic characters. Dynamic data transmission configuration is performed based on the target LED display protocol to ensure that the LED screen can accurately receive and display Arabic characters. The entire process from data generation and compression to transmission is completed on the control terminal side and adapted to the target hardware. This solves the problems of Arabic character display distortion, communication protocol incompatibility, and poor hardware adaptability in existing technologies, significantly improves the compatibility and display accuracy of cross-device communication, and realizes accurate and efficient operation of Arabic character dot matrix transmission.

[0016] 2. By performing fine-grained analysis of the contextual position of Arabic characters and combining four morphological rules—independent form, initial form, middle form, and final form—accurate judgment of the form of each character is achieved. Furthermore, through technologies such as contour sampling, pixel completion, and smooth connection, vector glyphs are converted into high-quality dot matrices, and natural transitions between adjacent characters are achieved based on stroke information. The entire chain from glyph recognition to dot matrix generation is optimized, especially for the characteristics of Arabic strokes and morphological changes, avoiding problems such as broken strokes and deformations that occur in traditional dot matrix conversion, significantly improving the readability and aesthetics of Arabic characters on LED screens.

[0017] 3. By employing differentiated compression strategies for ligature and non-ligature areas, the overall compression rate is improved while ensuring that ligature details are not distorted. Combined with the adaptive negotiation mechanism of the data transmission protocol and the dynamic rendering and brightness adjustment functions of the receiving end, end-to-end optimization from sending to receiving to display is achieved. This not only improves data transmission efficiency and reliability, but also enhances the display effect and visual comfort in different environments through ambient light adaptation and layout adaptation mechanisms, thereby improving the overall display quality and user experience of Arabic characters on LED screens.

[0018] 4. By introducing heartbeat packet monitoring and automatic retransmission mechanisms during data transmission, the stability of the communication link is guaranteed in real time. In the event of an interruption, data can be quickly recovered and retransmitted, avoiding display loss or errors caused by communication anomalies. This significantly improves the robustness and reliability of the system in complex communication environments, ensuring the continuous and stable output of Arabic character information on the LED screen. Attached Figure Description

[0019] Figure 1 This is a flowchart illustrating the Arabic character dot matrix transmission method provided in an embodiment of this application; Figure 2 This is another flowchart illustrating the Arabic character dot matrix transmission method provided in this application embodiment; Figure 3This is a schematic diagram of the structure of an Arabic character dot matrix transmission system provided in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 401, Central Processing Unit; 402, Read-Only Memory; 403, Random Access Memory; 404, Bus; 405, Input / Output Interface; 406, Input Section; 407, Output Section; 408, Storage Section; 409, Communication Section; 410, Driver; 411, Removable Media. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of the embodiments of this application, words such as "illustrative," "for example," or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "illustrative," "for example," or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of words such as "illustrative," "for example," or "for example" is intended to present the relevant concepts in a specific manner.

[0023] In the description of the embodiments of this application, the terms "first, second, third" are used only to distinguish similar objects and do not represent a specific order of objects. It is understood that "first, second, third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0024] In the embodiments of this application, the terms "module" or "unit" refer to a computer program or part of a computer program that has a predetermined function and works with other related parts to achieve a predetermined goal, and can be implemented wholly or partially using software, hardware (such as processing circuitry or memory), or a combination thereof. Similarly, a processor (or multiple processors or memory) can be used to implement one or more modules or units. Furthermore, each module or unit can be part of an overall module or unit that includes the functionality of that module or unit. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0025] In the implementation of this application, the collection and processing of relevant data should strictly comply with the requirements of relevant national laws and regulations, obtain the informed consent or separate consent of the personal information subject, and carry out subsequent data use and processing within the scope of laws and regulations and the authorization of the personal information subject.

[0026] Unless otherwise defined, all technical and scientific terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the embodiments of this application is for the purpose of describing the embodiments of this application only and is not intended to limit this application.

[0027] In related technologies, the use of simple direct mapping and conversion ignores the contextual morphological changes and cursive characteristics of Arabic characters, resulting in incorrect character shapes, broken strokes, and separation at connections when displayed on LED screens. This leads to fragmented text, severely affecting the readability and accurate transmission of information, and making it difficult to achieve precise and efficient operation of Arabic character dot matrix transmission. To address the above problems, this application provides an Arabic character dot matrix transmission method, system, medium, and product that can achieve precise and efficient operation of Arabic character dot matrix transmission.

[0028] Figure 1 This is a flowchart illustrating the Arabic character dot matrix transmission method provided in an embodiment of this application.

[0029] This invention discloses a method for transmitting Arabic character dot matrix data, such as... Figure 1 As shown, the steps include the following.

[0030] S101. Obtain the dot matrix specification parameters of the Arabic string to be processed and the target LED display screen. The Arabic string to be processed includes multiple Arabic characters.

[0031] Specifically, when the control terminal begins to execute the Arabic character dot matrix transmission task, it needs to obtain two core input information: the Arabic string to be processed and the dot matrix specification parameters of the target LED display. The Arabic string to be processed is input by the user or called from within the system, and contains a set of sequentially arranged Arabic characters. The dot matrix specification parameters are a set of display attributes extracted from the hardware configuration information of the target LED display or obtained through communication negotiation. After obtaining these two types of information through the internal data interface or user interface, they are temporarily stored in memory for subsequent processing modules to call, thus providing the initial input conditions for the entire character conversion and transmission process.

[0032] The Arabic string to be processed refers to a text sequence containing one or more Arabic characters, input by the user, generated by the system, or transmitted from an external source, used to represent the language content to be displayed on the LED screen. The target LED display screen refers to the hardware device that serves as the final display carrier, used to receive and display the dot matrix data transmitted by the control terminal. Dot matrix specifications are used to represent the pixel configuration information required by the LED screen when displaying characters, including but not limited to pixel matrix size (e.g., 16×16, 24×24), pixel arrangement, color depth, brightness range, and other display attribute parameters. Arabic characters refer to the basic language units belonging to the Arabic writing system, including 28 basic letters and their variant forms; each character has an independent semantic or grammatical function in the text.

[0033] For example, when a user enters the Arabic phrase "مرحبابالعالم" (meaning "Hello, world") in an information publishing application on an Android tablet and selects an outdoor full-color LED screen as the display target, the system will retrieve the string from the user interface. At the same time, it will obtain the dot matrix specifications supported by the LED screen through a preset device configuration table or active communication query, such as 32×32 pixel monochrome dot matrix, support for grayscale adjustment, and a refresh rate of 60Hz. This information will be integrated into structured input data and passed to the next step of the syntax parsing module.

[0034] S102. Identify the context position of each Arabic character in the string to be processed by using a preset syntax parsing algorithm.

[0035] Specifically, after obtaining the Arabic string to be processed, the algorithm will call its internally integrated preset syntax parsing algorithm to analyze and process the string. This algorithm is built based on the grammatical structure and writing rules of Arabic. It can traverse the string character by character and determine the specific position of each Arabic character in a word or sentence by combining the relationship between the preceding and following characters. The algorithm execution process includes sub-steps such as character segmentation, context analysis, and boundary determination. Finally, it outputs the context position identifier corresponding to each character. This identifier is used to accurately reflect whether the character is at the beginning, middle, end, or independent state of a word, providing a structured positional basis for subsequent character morphology matching.

[0036] The pre-defined grammar parsing algorithm refers to computer processing logic pre-designed and implemented based on Arabic morphology and grammar rules, used for structural analysis and context recognition of Arabic text. Contextual position is used to represent the structural environment of each Arabic character in the string, including the grammatical relationship between the character and its adjacent characters and its relative position category in the vocabulary.

[0037] For example, for the Arabic string الكتاب (meaning "book"), the default parsing algorithm analyzes each character in turn: the first character ا (Alif) is at the beginning of the word, the second character ل (Lam) is connected to the former and is in the middle of the word, the third character ك (Kaf) is also in the middle of the word, and so on, until the last character ب (Ba) is identified as the end of the word. The algorithm outputs the context position marker sequence corresponding to each character by analyzing the connection between characters and Arabic word formation rules.

[0038] S103. Based on each context position, determine the character form of each Arabic character through preset Arabic character form rules, and generate a character form sequence.

[0039] Specifically, after obtaining the context position of each Arabic character, the display form of each character is determined one by one according to the preset Arabic character morphology rules. These rules are based on Arabic writing standards and clearly define the standard morphology mapping relationship of characters at the beginning, middle, end of words, and in independent states. The system queries the internally stored morphology mapping table according to the context position of each character, assigns a suitable morphology identifier to each character, and then organizes these morphology identifiers into an ordered sequence, namely the character morphology sequence, according to the order in which the characters appear in the original string. This sequence completely records the target display form of each character in the string.

[0040] Among them, the preset Arabic character morphology rules refer to the set of mapping rules pre-defined within the system that describe the visual morphology of Arabic characters in different contextual positions. Character morphology refers to the specific visual representation of an Arabic character in a particular contextual position, including four standard types: independent, initial, middle, and final. The character morphology sequence is an ordered list arranged according to the character order in the original Arabic string, with each character corresponding to a morphology identifier, used to record the morphological composition of the entire string.

[0041] Based on the above embodiments, as an optional embodiment, the character forms include independent characters, word-initial characters, word-middle characters, and word-suffix characters, targeting... Figure 1 The step S103 shown can be implemented through steps S1031-S1036, which will be explained in detail below.

[0042] S1031. Based on preset Arabic character morphology rules, identify the connection relationship between the target Arabic character and adjacent characters. The target Arabic character is any Arabic character, and the adjacent characters include the left adjacent character and the right adjacent character.

[0043] Specifically, when processing Arabic strings, the system analyzes the connection relationships of each Arabic character (called the target Arabic character) in the string according to preset Arabic character morphology rules. These rules define whether connections are allowed between Arabic letters and how they are connected. For the target character being processed, the system checks whether there are connection relationships that conform to Arabic writing rules between it and its immediate preceding character (if it exists) and its immediate following character (if it exists). This process traverses each character in the string and records its connection status with the preceding and following characters, thus providing a basis for determining the morphology category of each character.

[0044] Here, the target Arabic character refers to any Arabic character from the string being analyzed and processed by the system. Adjacent characters are those that are immediately adjacent to the target Arabic character in the string, specifically including the left-adjacent character preceding it and the right-adjacent character following it. Connection relationship refers to the association attribute of whether two Arabic characters can form a connected stroke when written, indicating the possibility of a visual stroke connection between the characters.

[0045] S1032. When the target Arabic character has no connection relationship with any adjacent characters, the character form of the target Arabic character is determined to be an independent character.

[0046] Specifically, if it is determined that there is no connection between the target character and its left and right adjacent characters that conforms to the Arabic writing rules, the system will assign the target character the morphological identifier "independent body" based on the morphological determination logic. This means that the character should be displayed in its independent and complete form in the current text context, without the need for visual stroke connection with the characters before and after it.

[0047] Among them, the independent form refers to a standard form of Arabic numerals, indicating that the character is not connected with any other character and is presented as an independent and complete glyph.

[0048] For example, in the Arabic phrase “هلالكتاب؟” (meaning “Book?”), consider the last letter “ب” (Ba) before the question mark “?” after the word “الكتاب”. In Arabic, the question mark “?” is treated as a separate symbol and is not usually connected to the preceding Arabic letter. Assume the system has treated “?” as a special non-connected character. When “ب” is analyzed as the target Arabic character, its left adjacent character is “ا” (Alif, which is usually connected within a word), but “ب” and “ا” may have a word ending and word middle relationship in this word form, while its right adjacent character is the question mark “?” (which the system determines is not connected). If, according to stricter word boundary rules or specific font rules, the system determines that “ب” is not connected to the following symbol “?” at this position, and may also determine that it has no connection relationship with the following character because it is at the end of a word and followed by punctuation (at the same time, if it is also defined as not connected to the preceding character “ا” under a certain word ending form or treated as an independent word ending), then the system may ultimately determine that “ب” has no connection relationship with either the preceding or following characters, thus determining that its character form is an independent entity.

[0049] S1033. When the target Arabic character is connected to the left adjacent character but not to the right adjacent character, the character form of the target Arabic character is determined to be a word-initial form.

[0050] Specifically, if it is determined that a character only has a connected relationship with its left adjacent character in accordance with Arabic writing rules, but not with its right adjacent character, the system will assign the character a "word-initial form" morphological identifier based on the morphological determination logic. This means that the character will visually appear as the starting form of a word or morpheme, with its left (front) side connected to the previous character, while its right (back) side remains independent or unconnected.

[0051] In this context, the left adjacent character refers to the character immediately preceding the target Arabic character in the string sequence. The right adjacent character refers to the character immediately following the target Arabic character in the string sequence. The initial part of an Arabic character refers to a standard form where the character is the beginning of a word or morpheme, designed to connect only to the preceding character, while the following part remains unconnected or ends independently.

[0052] For example, in the Arabic word “مدرسة” (school), the second character “د” (Dal) is analyzed. Its left adjacent character is “م” (Mim), and in Arabic writing, “م” and “د” are often connected. Its right adjacent character is “ر” (Ra), and in certain writing rules or specific fonts, “د” and “ر” may be designed not to be connected, or “د” may appear in this position as the ending form of the preceding morpheme. If the system determines, according to preset rules, that “د” is connected to “م” but not to “ر”, then the system will determine that the character form of “د” is the initial form of the word. (Note: This example demonstrates the logic. In reality, in “مدرسة”, “د” is usually in the middle of the word and connects with the preceding and following characters. More typical examples of initial words can appear in compound words or words with prefixes. For example, in “بالكتاب” (carrying a book), “ب” is a prepositional prefix connected with the following “ا”, and “ا” is the beginning of the following word. If it only connects with the preceding “ب” and not with any subsequent characters, then “ا” might be considered an initial word.)

[0053] S1034. When the target Arabic character has no connection relationship with its left adjacent character but has a connection relationship with its right adjacent character, the character form of the target Arabic character is determined to be a word ending.

[0054] Specifically, if it is determined that there is no ligature relationship between the character and its left adjacent character that conforms to Arabic writing rules, but there is such a connection relationship with its right adjacent character, the system will assign the character a word suffix based on the morphological determination logic. This means that the character is visually represented as the end of a word or morpheme, with its left (front) side maintaining an independent or unconnected form, while its right (back) side is merged and connected with the next character.

[0055] Among them, the word ending refers to a standard form of Arabic numerals, indicating that the character is the end part of a word or morpheme, and its glyph is designed to connect only with the following character, while its preceding part remains unconnected or starts independently.

[0056] For example, in the Arabic word "كتاب" (book), the penultimate character "ا" (Alif) is analyzed. Its left adjacent character is "ت" (Ta). In certain writing styles or specific font rules, "ا" in this position may be designed not to connect with the preceding "ت" (e.g., when "ا" is a long vowel and ends in a specific word form). Its right adjacent character is "ب" (Ba). In Arabic, "ا" and "ب" can often be connected. If the system determines, according to preset rules, that "ا" does not connect with "ت" but does connect with "ب", then the system will determine the character form of "ا" as a "word-ending form". (Note: This example is used to demonstrate the judgment logic. In the continuous writing of the actual word "كتاب", "ت" and "ا" are usually connected, and "ا" and "ب" are also connected, so "ا" is more likely to be judged as the word-in-the-word form. A more typical example of the word-end form may appear when the word is actually at the end and followed by a space or punctuation mark, but in this example it is followed by "ب", so the judgment of the word-end form depends more on specific font rules or writing variations.)

[0057] S1035. When the target Arabic character has a connection relationship with all adjacent characters, the character form of the target Arabic character is determined to be word-in-word.

[0058] Specifically, if it is determined that the target character has a connected relationship with both its left and right adjacent characters in accordance with Arabic writing rules, the system will assign the character a word-in-the-middle form based on the morphological determination logic. This means that the character is visually represented as the middle part of a word or morpheme, with its left (front) side connected to the previous character and its right (back) side connected to the next character, forming a continuous connected writing effect.

[0059] Among them, word-in-the-word form refers to a standard form of Arabic numerals, indicating that the character serves as the middle part of a word or morpheme, and its glyph design is such that it is visually connected to both the preceding and following characters.

[0060] For example, in the Arabic word “مدرسة” (school), the third character “ر” (Ra) is analyzed as the target Arabic character. Its left adjacent character is “د” (Dal), and in standard Arabic writing, “د” and “ر” can be connected. Its right adjacent character is “س” (Sin), and “ر” and “س” can also be connected. Therefore, according to the preset rules, the system determines that “ر” has a connection relationship with both the preceding and following characters, thus identifying its character form as a word-internal form.

[0061] S1036. Based on the character form of each Arabic character, generate a character form sequence according to the character order of the Arabic string to be processed.

[0062] Specifically, after determining the form of each character in the Arabic string, the form identifiers corresponding to each character (such as independent form, initial form, middle form, and final form) are extracted and organized into an ordered data list according to the order in which these characters appear in the original input string. This list is the character form sequence, which records the display form that each character in the entire Arabic string should adopt in a specific context in a complete and orderly manner, providing a structured form basis for subsequent dot matrix generation and cursive processing.

[0063] The character order refers to the arrangement of Arabic characters in the original string to be processed.

[0064] S104. Based on the dot matrix specification parameters and character shape sequence, convert the string to be processed into raw dot matrix data.

[0065] Specifically, based on the display constraints such as pixel matrix size and arrangement defined by the dot matrix specification parameters, and combined with the target shape specified for each character in the character shape sequence, the conversion process from string to visual dot matrix is ​​executed. This conversion process first retrieves and loads the corresponding standard vector contour data from the built-in vector font library according to the shape identifier of each character. Then, according to the dot matrix specification parameters, each vector contour is discretized and pixelated to generate an independent dot matrix unit for each character. Finally, according to the stroke and layout logic reflected in the character shape sequence, the system combines, aligns and performs possible stroke pixel fusion processing on the dot matrix units of each character, ultimately generating a complete set of original dot matrix data that meets the display requirements of the target LED screen.

[0066] The original dot matrix data refers to the set of binary or grayscale pixel matrix data obtained after conversion, which can directly or after subsequent processing drive the display of LED pixels. Its structure conforms to the physical pixel arrangement requirements of the target LED screen.

[0067] Based on the above embodiments, as an optional embodiment, for Figure 1 The step S104 shown can be implemented through steps S1041-S1044, which will be explained in detail below.

[0068] S1041. Based on the character morphology sequence, determine the target vector glyph corresponding to the target Arabic character.

[0069] Specifically, for each character in the sequence (the target Arabic character), based on its recorded character morphology identifier in the sequence, the system retrieves and selects the vector graphic data that precisely matches it from a pre-built Arabic character vector glyph library. This glyph library pre-stores standard vector descriptions of each Arabic character in different forms (independent form, initial form, middle form, and final form). Through a query operation, the system maps the character morphology identifier to the corresponding vector contour definition, thereby determining the precise geometric shape, i.e., the target vector glyph, for each target Arabic character during subsequent bitmap conversion.

[0070] In this context, the target Arabic character refers to any Arabic character from the string to be processed that is currently being processed by the system and whose corresponding vector glyph needs to be determined. The target vector glyph refers to the character outline graphic data described by mathematical vectors, uniquely corresponding to the target Arabic character and its specified character form, used to define the visual shape of the character in its ideal state. The vector glyph library refers to a database or collection of files stored internally by the system that contains vector definitions of all Arabic characters in different forms.

[0071] S1042. Based on the dot matrix specification parameters, perform contour sampling on the target Arabic character to obtain the contour pixel set of the target Arabic character.

[0072] Specifically, based on the dot matrix specification parameters, the smooth contour described by the vector character is discretized and sampled. The dot matrix specification parameters define the pixel matrix size (such as width and height) of the target LED display screen. The system regards these size parameters as the boundary of the sampling grid. On this grid, the system performs geometric calculations on the vector contour, identifies all the positions where the contour path intersects with or passes through the grid lines (or grid cells), and maps these positions back to the grid coordinate system to obtain a set of discrete coordinate points that represent the approximate shape of the vector character contour at the target dot matrix resolution, i.e., the contour pixel point set.

[0073] Contour sampling refers to the digital processing of calculating intersection points and extracting coordinates from continuous vector graphic contours according to a specific discrete grid (defined by the bitmap specification). The contour pixel set refers to a set of discrete two-dimensional coordinate points obtained through contour sampling. These points are located on or near the grid defined by the bitmap specification parameters and are used to approximate the boundary shape of the target Arabic character vector contour at the target resolution.

[0074] For example, suppose the target Arabic character is the suffix "ب" (Ba), whose target vector glyph is a complex closed curve. The pixel specification is monochrome 16×16 pixels. The system will calculate the coordinates of the intersection points of this vector curve with each row and column of the grid line on a 16x16 virtual grid. For example, near the 5th column and 8th row of the grid, the curve intersects the grid line, and the system records the coordinates (5, 8). After traversing all grid lines, the system obtains a series of such coordinate points, which together constitute the set of outline pixels of the "ب" suffix at 16×16 resolution.

[0075] S1043. Fill the outline pixel set with a preset pixel completion algorithm to generate the initial character dot matrix of the target Arabic character.

[0076] Specifically, a preset pixel completion algorithm is invoked to process the outline pixel set to generate a solid dot matrix representation of the character. This algorithm uses the outline pixel set as a boundary constraint, calculates and identifies the positions of all pixel grids located inside the outline, and marks and fills them. The processing usually includes boundary tracking, internal region determination, and possible edge anti-aliasing or smoothing optimization steps. Finally, a binary (or grayscale) pixel matrix is ​​output, in which the pixels marked as lit together constitute the visual shape of the character. This matrix is ​​the initial character dot matrix of the target Arabic character, which completely represents the filled shape of the character under the target dot matrix specification.

[0077] The preset pixel completion algorithm refers to a predefined calculation method or processing flow within the system used to convert discrete contour point sets into solid pixel regions. The initial character dot matrix refers to the binary (or grayscale) pixel matrix representing the complete shape of the target Arabic character after processing by the pixel completion algorithm, and its size is defined by the dot matrix specification parameters.

[0078] For example, continuing from the previous example, for the outline pixel set of the suffix "ب" (Ba) in a 16×16 grid, the default pixel completion algorithm (such as the scan line fill algorithm) will scan the grid row by row, starting from the leftmost side of the pixel set. In each row, the algorithm calculates the intersection point between the row and the outline based on the outline pixel set, and determines that the pixel interval between the intersection points belongs to the internal region. For example, in the 8th row, the algorithm calculates that the intersection point with the outline is located in the 4th and 12th columns, so all pixels between the 4th and 12th columns (including the endpoints) are marked as fill (e.g., set to logic "1"). After processing row by row, a 16x16 binary matrix is ​​obtained, where the pixels with a value of 1 form the solid shape of the suffix "ب". This matrix is ​​the initial character dot matrix.

[0079] Based on the above embodiments, as an optional embodiment, step S1043 can be implemented through steps S10431-S10434, which will be explained in detail below.

[0080] S10431. Construct multiple polygonal contours based on the contour pixel set, and use the pixels located inside each polygonal contour as internal pixels to generate an internal pixel set.

[0081] Specifically, after obtaining the set of outline pixels of the target Arabic character, the discrete outline points are first geometrically reconstructed, and these points are identified and connected to form one or more closed boundary paths. Each such closed path is defined as a polygon outline, which together describe the possible complex shape of the character (such as containing holes or inner and outer contours). Then, the system traverses the entire pixel grid defined by the dot matrix specification parameters. For each pixel center point in the grid, the system uses a point-polygon position relationship determination algorithm, such as the ray method, to calculate whether the point is located in the internal region of any polygon outline. The coordinates of all pixels that are determined to be located inside any polygon outline are collected to form a point set, i.e., the internal pixel set.

[0082] In this context, a polygonal contour refers to one or more closed polyline paths formed by sequentially connecting points in the contour pixel set, used to approximate the vector contour boundary of a character on a discrete grid. An interior pixel is a pixel unit whose center point coordinates are determined to be located within the region enclosed by at least one polygonal contour in the pixel coordinate system. The set of interior pixels is the set of coordinates of all points determined to be interior pixels.

[0083] For example, suppose the target Arabic character is a standalone "ه" (Ha'). Its outline pixel set on an 8x8 grid may form two closed loops: a large outer outline and a small inner outline (representing the hole in the middle of the character). The system first connects these points to construct two polygonal outlines. Then, it iterates through all 64 pixels of the 8x8 grid. For the pixel at coordinates (3, 3), the algorithm determines that it is inside the large outline but outside the small outline (hole), so it is not an internal pixel. For the pixel at coordinates (4, 4), the algorithm determines that it is both inside the large outline and inside the small outline (i.e., inside the hole), so it is also not an internal pixel. Finally, all pixels that are both inside the large outline and not inside the small outline (such as (3, 4), (4, 3), etc.) are selected to form the internal pixel set, which describes the pixel position of the solid part of the character "ه".

[0084] S10432. Fill all gap pixels with a linear interpolation algorithm to generate a set of smooth edge pixels, where gap pixels are pixels between adjacent polygon contours.

[0085] Specifically, to optimize the edge display quality of the character dot matrix and eliminate the jagged edges of the contours, pixels that are not covered by the internal pixel set but are located in narrow areas between adjacent polygon contours are further processed. These pixels are called gap pixels. By using a linear interpolation algorithm, the display values ​​of these gap pixels are calculated and determined based on the attributes of neighboring points on adjacent polygon contours (such as distance, grayscale weight, etc.). The transition area formed by the boundaries of adjacent contours is identified. For each gap pixel in this area, a proportional calculation and interpolation value is performed based on its distance to the contour boundaries on both sides. All pixels that have undergone this interpolation process and been assigned new display values ​​together constitute a smooth edge pixel set. This set aims to create a smooth visual transition at the character edges.

[0086] Linear interpolation is a mathematical method that calculates the value of an intermediate point between two known data points according to a linear relationship. Gap pixels are pixels located within a narrow region in a pixel grid between two adjacent polygonal outlines (such as the outline of a character body and the outline of an internal hole, or closely adjacent stroke outlines). These points typically do not belong to the inner pixel set but are visually located in the outline transition zone. Adjacent polygonal outlines refer to the boundaries of two or more polygons that are spatially close to each other and jointly define a narrow transition region. The smooth edge pixel set is the set of coordinates and values ​​of all gap pixels assigned a specific display value (such as a mid-grayscale value) after processing by the linear interpolation algorithm, used to achieve anti-aliasing or smoothing effects at the edges of character pixel grids.

[0087] S10433. Combine the internal pixel set and the smooth edge pixel set to obtain the filled character area of ​​the target Arabic character.

[0088] Specifically, after generating the internal pixel set and the smoothed edge pixel set for the target Arabic character, the pixel data in these two sets are merged to form a complete and optimized filled area representation of the character. The merging process typically involves deduplication of pixel coordinates and integration of display attributes (such as brightness or grayscale values) to ensure that the pixel coordinates in both sets are mapped to the same pixel coordinate system defined by the bitmap specification parameters. Then, for pixels with overlapping coordinates (for example, a pixel may be marked by both the internal filling algorithm and the smoothed edge algorithm), their final display attributes are determined according to a preset priority rule (for example, smoothed edge values ​​preferentially cover binary internal values, or weighted mixing is performed). Finally, all the merged pixels with the final display attributes together constitute a data structure that fully describes the visual form of the target Arabic character at the target bitmap resolution after solid filling and edge smoothing optimization, i.e., the filled character area.

[0089] S10434. Map the filled character area to the pixel matrix corresponding to the dot matrix specification parameters to generate the initial character dot matrix of the target Arabic character.

[0090] Specifically, based on the pixel matrix size defined by the dot matrix specification parameters (e.g., width W pixels, height H pixels), a corresponding blank two-dimensional array (or bitmap buffer) is created. Each element of this array corresponds to a pixel position and its display attribute in the final dot matrix. Then, each pixel entry in the filled character area data is traversed. Each entry contains a coordinate (X, Y) in the dot matrix coordinate system and its corresponding display value (such as grayscale or color value). For each entry, the system writes its display value to the position corresponding to the coordinate (X, Y) in the created two-dimensional array. For coordinate positions not covered in the filled character area data, their initial values ​​(usually representing the background, such as 0 or background color) are retained in the two-dimensional array. After all entries are written, this fully filled two-dimensional array of size W×H (or the standard dot matrix data format derived from it) is defined as the initial character dot matrix of the target Arabic character.

[0091] The filled character area refers to the set of all pixels representing the complete optimized shape of the target Arabic character after internal filling and edge smoothing, along with their final display attributes (coordinates and values). The pixel matrix is ​​a two-dimensional data structure whose number of rows and columns is determined by the pixel matrix specifications; each element stores the display state value of a corresponding physical pixel.

[0092] S1044. Based on the character shape sequence, perform pixel connection and smoothing on adjacent initial character dot matrices in all initial character dot matrices according to the character order to generate original dot matrices data.

[0093] Specifically, based on the character order specified by the character morphology sequence, the system focuses on the boundary area between adjacent character dot matrices. First, based on the morphological information of adjacent characters in the character morphology sequence, the system determines whether there is a need for connecting strokes between them. If so, it locates the overlapping or adjacent pixel area of ​​the two adjacent initial character dot matrices, and then calls the preset pixel connection and smoothing processing algorithm to perform calculations and operations in this area. The pixel connection algorithm may include supplementing or modifying pixel values ​​at specific positions to form continuous strokes, while the smoothing processing may involve interpolation, filtering, or morphological operations on the connected area and nearby pixels to eliminate seams, jagged edges, or unnatural transitions caused by simple splicing. This process starts from the first character of the string and processes each pair of adjacent characters in turn until the last character. Finally, all processed character dot matrices are seamlessly spliced ​​into a whole, coherent dot matrices data block that represents the visual morphology of the entire string to be processed, i.e., the original dot matrices data.

[0094] Pixel concatenation refers to modifying or adding pixels in the boundary region of two adjacent character dot matrix areas to make the strokes of the characters appear visually continuous. Smoothing refers to optimizing the pixel concatenation area and nearby pixels to make the transition more natural and eliminate harsh edges.

[0095] S105. Compress the original dot matrix data using a preset compression algorithm to generate compressed dot matrix data.

[0096] Specifically, to optimize storage efficiency and transmission bandwidth, a preset compression algorithm is invoked to compress the data. This compression algorithm is specifically designed for the characteristics of dot matrix data (such as binarization or pixel distribution with specific patterns). During processing, the system takes the original dot matrix data as input, analyzes the statistical redundancy or spatial redundancy in the data according to the encoding rules and processes defined by the compression algorithm, and converts it into an information-equivalent but smaller representation. The entire compression process may include specific steps such as data segmentation, model prediction, and entropy coding. After processing, the algorithm outputs an encoded data stream or data structure, which is the compressed dot matrix data. It contains the necessary information extracted from the original dot matrix data so that the original dot matrix data can be completely reconstructed using the corresponding decompression algorithm.

[0097] The preset compression algorithm refers to a specific encoding method or protocol predefined and implemented within the system to reduce the storage space or transmission bandwidth occupied by data. Compression refers to the data processing process of reducing the amount of original data through encoding techniques. Compressed bitmap data refers to encoded data obtained after processing by the preset compression algorithm, which has a smaller data volume than the original bitmap data, and carries all the information required to reconstruct the original bitmap data.

[0098] For example, suppose the original bitmap data is a monochrome (1 bit per pixel) bitmap representing a short sentence, measuring 64 pixels wide × 16 pixels high, with a total data size of 1024 bits. The system calls a preset compression algorithm that incorporates run-length encoding (RLE). The algorithm first scans the bitmap row by row, encoding consecutive pixel sequences with the same pixel value (0 or 1) into (value, length) pairs. For example, if a row starts with 12 consecutive 0s, it is encoded as (0, 12). Since bitmap data often contains large areas of continuous background (0) or foreground (1), this encoding can significantly reduce the data size. The encoded (value, length) pair sequence may be further compressed by an entropy encoding step (such as Huffman coding), ultimately generating a compressed data stream that may only be a few hundred bits. This data stream is the compressed bitmap data.

[0099] Based on the above embodiments, as an optional embodiment, for Figure 1The step S105 shown can be implemented through steps S1051-S1054, which will be explained in detail below.

[0100] S1051. Based on the original dot matrix data, identify and distinguish the pixel data of the connected stroke area representing the transition between characters and the pixel data of the non-connected stroke area representing the main body of the character.

[0101] Specifically, based on the metadata recorded or deducible during the initial character morphology sequence generation and pixel connection processing (e.g., character boundary positions, pixel coordinate ranges modified during ligature processing), the pixels in the original dot matrix data are classified. By analyzing the spatial location and proximity of pixels, the sets of pixels located at the intersection of two different character dot matrices and created or significantly modified due to ligature processing are identified. These pixels constitute the ligature region pixel data. In contrast, pixels located inside the core of each character dot matrix and not significantly affected by ligature processing are classified as non-ligature region pixel data. This process can be achieved using techniques such as connected component analysis and difference comparison with the original independent character dot matrices. No specific restrictions are imposed here. Ultimately, two logically separate pixel datasets will be output, corresponding to the ligature region and the non-ligature region, respectively.

[0102] In this context, the ligature region pixel data refers to the set of pixels and their attribute values ​​in the original bitmap data that are specifically used to achieve and characterize the stroke connections and smooth transitions between adjacent Arabic characters. The non-ligature region pixel data refers to the set of pixels and their attribute values ​​in the original bitmap data, excluding the ligature region pixel data, used to characterize the main shape and internal structure of each Arabic character. The main body of a character refers to the core glyph structure of each Arabic character, excluding the connecting strokes with other characters.

[0103] S1052. Encode the pixel data of the ligature area using the first preset compression algorithm to obtain the compressed pixel data of the ligature area.

[0104] Specifically, the first preset compression algorithm is called to encode the pixel data of the ligature region based on its specific attributes. Since ligature lines are usually only a few pixels wide, any artifacts produced by lossy compression can lead to a visual sense of discontinuity. The first preset compression algorithm is tailored for ligature region data and aims to compress this relatively sparse but crucial pixel information for visual coherence with high fidelity. When the algorithm is executed, it first analyzes the distribution characteristics of the pixel data of the ligature region (such as relatively concentrated pixel positions and relatively simple value change patterns), and then adopts a matching encoding strategy, which may include, but is not limited to: differential encoding of pixel coordinates or using a specific sparse matrix representation to efficiently record pixel positions; lightweight lossless or visually lossless encoding of pixel values ​​(such as grayscale); the encoding process finally outputs a data stream or structured data packet, which is the compressed pixel data of the ligature region. Its data volume is significantly reduced compared to the original pixel data of the ligature region, while retaining the key information required to accurately reconstruct the pixels in this region.

[0105] The first preset compression algorithm refers to a specific encoding method predefined within the system and specifically optimized for compressing pixel data in the ligature region. The compressed pixel data in the ligature region refers to the reduced pixel information representation of the ligature region after processing by the first preset compression algorithm.

[0106] For example, suppose the ligature region pixel data contains 50 pixels, each requiring storage of its coordinates (X, Y) and grayscale value (G). The original storage might require 50 * (2 coordinates + 1 value) = 150 data units. A first-preset compression algorithm identifies that these pixels are mainly clustered within two small rectangular regions. The algorithm first records the boundary coordinates of these two rectangular regions, then stores only the offset of each pixel relative to the top-left corner of its respective rectangular region. This saves more space than storing absolute coordinates. For the grayscale values, the algorithm finds that they do not change significantly and may use simple differential pulse code modulation (DPCM) for encoding. After these steps, the final compressed data may only occupy 60 data units; this compressed data packet is the compressed ligature region pixel data.

[0107] S1053. Encode the non-connected stroke area pixel data using the second preset compression algorithm to obtain compressed non-connected stroke area pixel data. The compression ratio of the second preset compression algorithm is greater than that of the first preset compression algorithm.

[0108] Specifically, the second preset compression algorithm is invoked to encode the non-ligature region pixel data with a high compression ratio. Since the human eye is not sensitive to the texture or weak high-frequency noise within the main body of a character, and the structure of the main body gives it a high visual error tolerance, the second preset compression algorithm is specifically designed for non-ligature region data. Its aim is to minimize the space occupied by this pixel information, which typically has a larger data volume and may have higher spatial or statistical redundancy. The design prioritizes a higher compression ratio, and the encoding strategies employed may include more aggressive data transformations (such as Discrete Cosine Transform (DCT) and Wavelet Transform), more complex prediction models, and more efficient entropy coding methods (such as arithmetic coding). During execution, the algorithm performs a series of operations on the non-ligature region pixel data, including block segmentation, transformation, quantization, and encoding, ultimately outputting a data stream or data packet with a significantly reduced data volume—the compressed non-ligature region pixel data.

[0109] The second preset compression algorithm refers to a specific encoding method predefined within the system and specifically optimized for efficient compression of pixel data in non-connected stroke regions. Compression ratio refers to the ratio of data size before and after compression, used to measure the efficiency of the compression algorithm; a higher compression ratio indicates a smaller data size after compression. Compressed pixel data in non-connected stroke regions refers to the pixel information representation of non-connected stroke regions after processing by the second preset compression algorithm, resulting in a significantly reduced data size.

[0110] For example, suppose the non-ligature region pixel data is a large, relatively smooth grayscale image block representing the main body of multiple characters. The original data might be a 100x100 pixel area. A second pre-defined compression algorithm (e.g., based on JPEG-LS or an efficient region coding) might first divide it into multiple 8x8 sub-blocks. For each sub-block, predictive coding is performed, utilizing the correlation of adjacent pixels to reduce redundancy. Subsequently, a lossless or near-lossless transform coding might be applied to further concentrate energy. Finally, Huffman coding or arithmetic coding is used to entropy-encode the resulting symbol sequence. After this series of processes, data that might originally require 10,000 bytes (assuming 1 byte per pixel) is compressed into a data packet that might only be 1,500 bytes. This data packet is the compressed non-ligature region pixel data.

[0111] S1054. Generate compressed dot matrix data based on the compressed pixel data of the connected stroke area and the compressed pixel data of the non-connected stroke area.

[0112] Specifically, following a predefined, receiver-parseable data format specification, the two parts of compressed data and necessary metadata are structured and organized. The system creates a data container (such as a data packet or file), whose structure typically includes header information and data payload. The header information records metadata such as the original pixel size, compression algorithm identifier (first and second algorithm types), and data boundaries or indices of ligature and non-ligature regions. Subsequently, the compressed ligature region pixel data and the compressed non-ligature region pixel data are used as payloads and placed into the designated part of the data container in a pre-defined order (e.g., ligature region data first, then non-ligature region data, or vice versa). This complete structured data entity, containing all necessary metadata and compressed pixel data, is then generated as compressed pixel data.

[0113] For example, suppose the compressed ligature area pixel data is a 200-byte data block A, and the compressed non-ligature area pixel data is a 1500-byte data block B. The system generates compressed dot matrix data according to the following format: The first 20 bytes are the header, containing fields such as: original width (2 bytes), original height (2 bytes), ligature data start offset (4 bytes), ligature data length (4 bytes), non-ligature data start offset (4 bytes), non-ligature data length (4 bytes), and algorithm identifier (2 bytes). After the header, data block A (200 bytes) and data block B (1500 bytes) are stored consecutively. Finally, this complete data packet with a total length of 20 + 200 + 1500 = 1720 bytes is the compressed dot matrix data. The receiving end can accurately parse A and B based on the header information and restore them using the corresponding decompression algorithm.

[0114] Through the above embodiments, structured data encapsulation integrates two parts of pixel data that have undergone differentiated and efficient compression into a self-describing, complete data unit. This not only ensures the integrity of the compressed data and facilitates transmission, storage, and verification, but also provides the receiving end with a clear data parsing guide. This allows the receiving end to accurately identify, separate, and decompress the connected and non-connected parts without external information, thereby accurately reconstructing the original dot matrix. This achieves an efficient and reliable data representation and exchange format that balances high compression rate, high fidelity, and decoding convenience.

[0115] S106. Based on the data transmission protocol of the target LED display screen, dynamically adjust the data transmission configuration and send the compressed dot matrix data to the target LED display screen so that the target LED display screen can decompress and display the compressed dot matrix data.

[0116] Specifically, based on the data transmission protocol determined or negotiated when establishing communication with the target LED display, the upcoming data transmission process is adapted and configured. This involves parsing the data transmission protocol, which defines specific rules such as data transmission format, timing, packet segmentation, and error checking methods. Based on this protocol, the configuration parameters of the communication module are dynamically adjusted. For example, this includes setting a data frame structure that matches the protocol (including frame header, frame trailer, data segment length, checksum field, etc.), determining whether to enable and what flow control or retransmission mechanism to use, and potentially adjusting the compressed dot matrix data according to protocol requirements. Further packetization or framing processing is performed to ensure that the data unit size for a single transmission conforms to the protocol. After configuration, the compressed dot matrix data stream, after framing processing, is sent to the target LED display screen in an orderly manner according to the timing and format requirements of the protocol through the established physical communication link (such as serial port, Wi-Fi, etc., no specific restrictions are made here). After the receiving end of the target LED display screen receives the complete data, it will decompress the compressed dot matrix data according to the corresponding decompression algorithm known in advance or extracted from the data, restore the original dot matrix data, and finally drive its pixel array to display.

[0117] The data transmission protocol refers to the predefined or negotiated communication rules and format standards used to reliably transmit dot matrix data between the control terminal and the LED display screen. Data transmission configuration refers to the set of software or hardware parameters related to data transmission, including data frame format, baud rate (serial port), packet size, verification method, timeout settings, etc.

[0118] For example, suppose the target LED display uses a custom serial protocol. This protocol specifies that the data frame begins with a header of 0xAA0x55, followed by a 2-byte data length (Little-Endian), then the data payload, and finally a 1-byte XOR checksum. The compressed dot matrix data length is 1720 bytes. The communication module first dynamically configures the serial port parameters (e.g., 115200 baud rate, 8 data bits, no parity) and framing logic according to this protocol. Since 1720 bytes may exceed the maximum payload limit of a single frame (e.g., 256 bytes), the system will divide the compressed dot matrix data into multiple data blocks that meet the length requirements. For each data block, the system adds a header, length field, and calculates the checksum according to the protocol, forming multiple complete data frames. These data frames are sent to the LED screen sequentially via the serial port. The LED screen controller receives and verifies each frame, extracts all data blocks, and reassembles them to obtain the complete 1720-byte compressed dot matrix data. Then, the corresponding decompression algorithm is called to recover the original dot matrix data, and finally, the corresponding LED pixels are lit up to display Arabic characters.

[0119] Through the above embodiments, a key leap from data processing to physical display has been achieved, ensuring that the compressed dot matrix data generated after complex processing can be accurately, efficiently, and error-free delivered to the target display device and ultimately transformed into a visible display effect. This protocol-aware dynamic adjustment capability greatly enhances the system's compatibility with LED displays of different brands and models, eliminating the need to pre-fix communication codes for each device, reducing deployment and maintenance costs. At the same time, the reliable data transmission mechanism ensures the integrity and real-time performance of the displayed content.

[0120] Based on the above embodiments, as an optional embodiment, for Figure 1 The step S106 shown illustrates dynamically adjusting the data transmission configuration based on the data transmission protocol of the target LED display screen. This can be achieved through steps S1061-S1063, which will be explained in detail below.

[0121] S1061. Send a preset parameter query handshake command to the target LED display screen.

[0122] Specifically, before establishing communication with the target LED display or starting data transmission, a preset parameter query handshake command is proactively sent to the target LED display to obtain accurate communication and display parameters. This command is a data packet or command code of a specific format predefined in the system communication protocol. Its purpose is to request the LED display to report its own hardware configuration and communication capability information. Sending this command is a standard step in the communication initialization or parameter negotiation phase. This handshake command data is sent out through the established physical communication link (such as serial port, Bluetooth, Wi-Fi) according to the basic communication format of the link (such as byte stream).

[0123] Among them, the preset parameter query handshake instruction refers to command data that is predefined in the communication protocol, has a specific structure and content, and is used to request the peer device to return its configuration parameters.

[0124] S1062. Receive and parse the response data packet of the target LED display screen to the preset parameter query handshake command. The response data packet encapsulates the data transmission protocol, which is used to characterize the hardware parameter requirements of the target LED display screen.

[0125] Specifically, the receiving mechanism is activated to wait for and capture responses from the LED display screen. Upon receiving the query command, the target LED display screen generates a response data packet containing its own communication and hardware parameter information and sends it back via the communication link. After receiving this response data packet, a preset parsing program is invoked to process it. The parsing process includes verifying the integrity of the data packet (such as checksum), identifying its structure (such as frame header, data segment, and frame trailer), and extracting key parameter fields. These extracted parameters collectively constitute or explicitly define the "data transmission protocol." This protocol does not refer to a broad network protocol, but specifically refers to a set of specific hardware parameter requirements that must be followed in this communication session to adapt to the target LED display screen, such as: communication baud rate, data bits, stop bits, parity bits, dot matrix data width and height (pixels), color mode (monochrome / grayscale / color), refresh rate requirements, and data packet size.

[0126] In this context, a response data packet refers to a data unit with a predetermined format sent back by the target LED display in response to a query command. A data transmission protocol, in this context, refers to a set of specific communication and display parameters parsed from the response data packet, specifying how to transmit dot matrix data to that particular LED display. Hardware parameter requirements refer to the configuration parameters related to the physical characteristics and controller design required for the normal operation of the target LED display.

[0127] S1063. Based on hardware parameter requirements, dynamically adjust the data transmission configuration to achieve data transmission protocol synchronization.

[0128] Specifically, based on hardware parameter requirements, the relevant modules responsible for communication with the LED screen are configured and adjusted in real time and online. This ensures that the system's data transmission behavior is completely synchronized with the "data transmission protocol" required by the target display screen. At the software level, the system reconfigures the driver parameters of the communication port according to the parsed parameters (such as baud rate, data bits, stop bits, and parity). The final packaging format and possible packetization strategies of the dot matrix data are adjusted according to display specifications (such as dot matrix width, height, and color depth). The system may also set or update the data frame encapsulation format and timeout retransmission mechanism according to protocol requirements. At the hardware level, for programmable communication interfaces (such as some serial port controllers), their register settings may be directly updated to match the new baud rate. After all these configuration updates are completed, the communication state of the control terminal is consistent with the expected reception state of the target LED display screen, preparing for the subsequent accurate and reliable transmission of compressed dot matrix data.

[0129] The data transmission protocol refers to a set of specific rules that both parties (the control terminal and the LED display screen) must follow in order to successfully exchange data during this specific communication session. These rules are derived from the hardware parameter requirements.

[0130] Figure 2 This is another flowchart illustrating the Arabic character dot matrix transmission method provided in this application embodiment.

[0131] Based on the above embodiments, as an optional embodiment, see [link to embodiment]. Figure 2 ,against Figure 1 The illustrated method for transmitting Arabic character dot matrix data may also include... Figure 2 Steps S201-S205 are explained in detail below.

[0132] S201. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can restore the compressed dot matrix data to the original dot matrix data without loss based on the data transmission protocol and the preset decompression algorithm. The original dot matrix data includes multiple initial character dot matrices.

[0133] Specifically, after the controller of the target LED display receives the compressed dot matrix data from the control terminal through the communication link, it will initiate the data restoration process. The controller will identify the structure of the received data based on the "data transmission protocol" that was established and stored locally during the previous parameter negotiation phase. This protocol specifies the data encapsulation format, enabling the controller to correctly separate the header information, compressed ligature area pixel data, and compressed non-ligature area pixel data from the received data stream. The controller calls its internally stored preset decompression algorithm, which corresponds to the control terminal's compression algorithm. This algorithm is the reverse process of the compression algorithm, decoding the compressed data format: for ligature area data, the decompression algorithm corresponding to the "first preset compression algorithm" is used; for non-ligature area data, the decompression algorithm corresponding to the "second preset compression algorithm" is used. By executing these decompression algorithms, the controller restores the two parts of compressed data to their original pixel data form. Then, according to the layout information carried in the protocol or data, the restored ligature area pixel data and non-ligature area pixel data are combined and mapped according to the original dot matrix structure, ultimately reconstructing the complete original dot matrix data that represents the visual form of the entire string to be displayed. According to the generation process, this original dot matrix data is logically composed of a series of processed (filled, smoothed, connected) individual character dot matrices (i.e., the initial character dot matrix) combined sequentially.

[0134] The preset decompression algorithm refers to the algorithm program pre-stored in the LED display controller, which is used to restore compressed data of a specific format to the original data.

[0135] S202. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen generates a dynamic rendering offset based on the preset Arabic character layout data and applies it to each initial character dot matrix to generate a dot matrix to be displayed. The preset Arabic character layout data is used to characterize the reference spacing between each initial character dot matrix and the pixel overlap rules of the ligature area.

[0136] Specifically, to achieve a display effect on the physical pixel matrix that better suits Arabic reading habits and visual aesthetics, the system further calls upon its internally stored preset Arabic character layout data. This layout data is a rule base that defines the reference values ​​for the horizontal (or vertical) spacing between adjacent initial character dot matrices under different character shape combinations, as well as the pixel mixing or overlay rules that their dot matrices should follow in overlapping areas when there are ligatures between characters. Based on the character shape sequence corresponding to the string to be displayed (this sequence information may be implicit in the generation logic of the original dot matrix data or transmitted to the display screen through other means), and in conjunction with the rules in the layout data, the controller generates a layout for each pair of adjacent initial character dot matrices. The initial character dot matrix calculates one or more "dynamic rendering offsets," which are vectors (usually in pixels) that indicate the fine-tuning of the subsequent character dot matrix's position relative to its standard alignment position (such as the right boundary of the previous character dot matrix) during layout. The controller creates a temporary or final target display position for each initial character dot matrix, which is the result of superimposing its dynamic rendering offset on its logical standard position (such as the right boundary of the previous character dot matrix as the starting point of the next). Then, based on these adjusted target positions, the pixel data of all character dot matrices are "drawn" into a sufficiently large blank frame buffer or pixel matrix that matches the physical resolution of the LED screen. During the "drawing" process, the pixels of each dot matrix are placed strictly according to the calculated coordinates, and the overlapping areas between character dot matrices that may occur are handled according to the overlapping rules in the typesetting data (for example, performing "OR" operations on pixels at ligatures, weighted mixing, or specifying priority coverage). When all character dot matrices are accurately positioned and composited into this frame buffer, the pixel image stored in the buffer becomes the dot matrix to be displayed, completely and accurately reflecting the final visual form of the entire Arabic string after dynamic typesetting optimization.

[0137] The preset Arabic character layout data refers to the set of data pre-stored in the LED display controller, describing the layout specifications of Arabic characters when displayed in a dot matrix. Dynamic rendering offset refers to the pixel-level displacement calculated in real-time based on the layout rules and specific character context, used to adjust the display position of the character dot matrix. Reference spacing refers to the recommended pixel distance that should be maintained between the boundaries of two adjacent character dot matrices under normal layout conditions. Pixel overlap rules for connected strokes refer to the specific regulations on how the pixels of two characters' dot matrices should overlap, merge, or cover each other at the boundary when two characters need to be displayed connected. The dot matrix to be displayed refers to the final complete image data obtained after dynamic layout position adjustment and pixel synthesis, which can be directly or after simple conversion to drive the display of LED pixels.

[0138] For example, suppose we want to display the word "كتب". Its initial character matrix is ​​A (ك initial font), B (ت middle font), and C (ب final font). The default layout data might stipulate that when initial and middle fonts are adjacent, the baseline spacing is 1 pixel. However, if there is a ligature, B is allowed to offset 2 pixels to the left to overlap with A. For B (middle font) and C (final font), the baseline spacing is 1 pixel, and when ligatures exist, C is allowed to offset 1 pixel to the left. Based on these rules and the known ligatures between A and B, and between B and C, the controller calculates: A dynamic rendering offset (-2, 0) is generated for B, meaning B is offset 2 pixels to the left horizontally. A dynamic rendering offset (-1, 0) is generated for C, meaning C is offset 1 pixel to the left.

[0139] S203. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can obtain the ambient light intensity value of the deployment location of the target LED display screen, and map the ambient light intensity value to the target display brightness level based on the preset visual comfort curve model.

[0140] Specifically, the display screen measures the ambient light intensity around its deployment location in real time through its integrated or external light sensor (such as an ambient light sensor ALS), obtaining a physical quantity value characterizing the intensity of light, namely the ambient light intensity value. The display screen's controller calls its internally stored preset visual comfort curve model. This model is a designed function or mapping table that defines the display brightness level that the LED display screen should adopt under different ambient light intensities to achieve optimal visual clarity, comfort, and avoid glare or unclear display. The controller takes the acquired ambient light intensity value as input, substitutes it into the model for calculation or table lookup, and obtains a corresponding recommended brightness level value, namely the target display brightness level. This level usually corresponds to the range of brightness parameters that the display screen's driver circuit can control (such as PWM duty cycle, current value, or digital brightness register value).

[0141] The deployment location refers to the physical location where the LED display screen is installed and operates. The ambient light intensity value is a quantitative value measured by sensors, reflecting the level of ambient light around the display screen; the unit may be lux (Lux) or the original sensor value. The preset visual comfort curve model is a mathematical model or data mapping table pre-set and stored within the display screen, describing the correspondence between ambient light intensity and ideal display brightness. The target display brightness level refers to the brightness level that the display screen should be set to under the current ambient light, calculated based on the model.

[0142] S204. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can dynamically adjust the pixel driving parameters based on the target display brightness level to obtain the target pixel driving parameters.

[0143] Specifically, the controller internally stores or embeds the mapping relationship or calculation formula between brightness levels and pixel driving parameters. These driving parameters are specific configuration values ​​controlling the LED display scanning circuit, constant current source, PWM (pulse width modulation) generator, or other brightness control units. Based on the target display brightness level, a new set of pixel driving parameters matching the target brightness is dynamically determined through calculation or table lookup. For example, for PWM control, the driving parameter might be the duty cycle of the PWM wave; for constant current source control, the driving parameter might be the current reference value. The controller then updates the corresponding hardware registers or configuration registers, setting these new parameters as the currently effective configuration. This updated set of parameters, which will be used for actual display driving, constitutes the target pixel driving parameters.

[0144] Pixel driving parameters refer to the underlying electrical or electronic parameters that directly control the luminous intensity, color, or scanning timing of LED pixel chips. Target pixel driving parameters refer to the set of parameters, after adjustment, used to actually drive the LED pixels in the next stage to achieve the target brightness.

[0145] S205. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can display the dot matrix to be displayed based on the target pixel driving parameters and through the preset driving circuit.

[0146] Specifically, the controller combines the dot matrix data to be displayed (i.e., the final pixel image after layout, positioning, and synthesis) with the target pixel driving parameters, which together act on the preset driving circuit of the display screen. The driving circuit is a hardware bridge connecting the controller's digital signals and the physical light emission of the LEDs. It typically includes row drivers, column drivers, scan control logic, PWM generation units, constant current sources, etc. The controller sends the dot matrix data to be displayed row by row or region by region to the data buffer of the driving circuit according to the scanning sequence of the display screen. At the same time, the controller configures the target pixel driving parameters (such as the PWM reference corresponding to the global brightness, the current gain of each color channel, etc.) into the corresponding control registers of the driving circuit. Subsequently, the driving circuit generates precise current pulses or voltage signals based on these parameters and the dot matrix data. According to the specified scanning sequence, it drives each light-emitting diode in the LED pixel array row by row or point by point. The on / off state, color, and brightness of each LED pixel are determined by the corresponding dot matrix data bits and driving parameters, thereby accurately and stably presenting the Arabic character image defined by the dot matrix on the entire physical display area of ​​the LED screen.

[0147] Among them, the preset driving circuit refers to the dedicated electronic circuit system that is pre-designed and integrated in the LED display screen and is responsible for converting digital signals into physical light signals.

[0148] Based on the above embodiments, as an optional embodiment, for Figure 1 The illustrated method for transmitting Arabic character dot matrix data may also include steps S301-S302, which will be explained in detail below.

[0149] S301. Monitor real-time link status through a preset heartbeat mechanism.

[0150] Specifically, after the control terminal establishes a communication connection with the target LED display and begins data transmission, to ensure the reliability of continuous communication, the system will activate a preset heartbeat mechanism to actively monitor the real-time status of the communication link. This mechanism generates a specific, concise detection data packet, known as a "heartbeat packet," at predetermined time intervals (e.g., every 500 milliseconds). This heartbeat packet typically contains only minimal overhead information such as a protocol identifier, sequence number, and possible timestamps, without carrying application data (e.g., dot matrix data). The control terminal sends this heartbeat packet to the target LED display through the established communication link (e.g., serial port, Wi-Fi connection). Simultaneously, the system starts a timer and expects to receive an acknowledgment response from the LED display within a preset timeout period. Upon receiving the heartbeat packet, the LED display should immediately reply with a corresponding acknowledgment packet according to the protocol. By continuously sending heartbeat packets and listening for acknowledgment responses, the control terminal can dynamically assess the connectivity, latency, and stability of the link. If an acknowledgment is not received within the timeout period multiple times consecutively, or if an erroneous response is received, the system will classify the current link status as "interrupted" or "unstable."

[0151] The preset heartbeat mechanism refers to the protocol and program logic pre-designed and implemented within the system for periodically checking whether the communication connection is alive. Real-time link status refers to the current operating status of the communication channel between the control terminal and the target LED display screen at any given time, including connectivity, interruption, high latency, and instability.

[0152] S302. When the link status is interrupted, perform a reconnection operation and resend the compressed dot matrix data that was not successfully acknowledged.

[0153] Specifically, when the control terminal detects an "interrupted" communication link with the target LED display via a heartbeat mechanism, the system immediately triggers a pre-defined fault recovery process. This process first automatically performs a reconnection operation, attempting to re-establish the physical or logical communication connection with the target LED display. The specific steps of the reconnection operation may include: resetting or re-initializing the communication interface hardware (such as a serial port controller or Wi-Fi module), resending the connection request or negotiation command according to the initial connection procedure, and waiting for a response from the target device to confirm successful connection reconstruction. After successful connection reconstruction, the system does not immediately begin sending new dot matrix data but enters a data recovery phase. The system internally maintains a transmission status record (such as a transmission queue or acknowledgment log), which marks which compressed dot matrix data packets have received successful reception acknowledgments from the LED screen, and which have not yet been acknowledged or are known to have failed transmission. For all compressed dot matrix data marked as "unacknowledged successful transmission" (i.e., data sent before the link interruption but without ACK acknowledgment, or data that failed to be sent due to the interruption), the system extracts it from the record and resends it to the target LED display through the newly established communication link according to the original order and priority. This ensures that even in the event of a brief communication interruption, the character information to be displayed will not be lost and will ultimately be presented completely and accurately on the LED screen.

[0154] Reconnection operation refers to a series of actions that attempt to re-establish the communication connection with the target device. Unacknowledged successful transmission compressed dot matrix data refers to compressed dot matrix data packets that have been sent but the sender has not received an explicit confirmation of success from the receiver.

[0155] Through the above embodiments, the problem of temporary interruptions that are difficult to avoid in wireless or wired communication is effectively addressed by automatically restoring connections and retransmitting data. This avoids the loss or error of displayed content caused by network fluctuations, equipment interference, etc., ensuring the continuity and accuracy of information dissemination, reducing the dependence on the permanent stability of communication links, and improving the robustness and availability of the system in complex real-world environments. This makes the entire Arabic character dot matrix transmission method applicable to key scenarios such as industrial control and outdoor advertising where stability is required.

[0156] The Arabic character dot matrix transmission system in the embodiments of this invention is described below from the perspective of hardware processing. Please refer to [link / reference]. Figure 3 , Figure 3 This is a schematic diagram of the structure of an Arabic character dot matrix transmission system provided in an embodiment of this application.

[0157] It should be noted that, Figure 3 The structure of the Arabic character dot matrix transmission system shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0158] like Figure 3 As shown, the Arabic character dot matrix transmission system includes a central processing unit 401, which can perform various appropriate actions and processes based on a program stored in the read-only memory 402 or a program loaded from the storage section 408 into the random access memory 403, such as performing the methods described in the above embodiments. The random access memory 403 also stores various programs and data required for system operation. The central processing unit 401, the read-only memory 402, and the random access memory 403 are interconnected via a bus 404. An input / output interface 405 is also connected to the bus 404.

[0159] The following components are connected to the input / output interface 405: an input section 406 including audio input devices, push-button switches, etc.; an output section 407 including a liquid crystal display (LCD) and audio output devices, indicator lights, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the input / output interface 405 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on the drive 410 as needed so that computer programs read from it can be installed into the storage section 408 as needed.

[0160] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit 401, it performs the various functions defined in the present invention. It should be noted that specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0161] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. Each block in a flowchart or block diagram may represent a module, program segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those shown in the drawings.

[0162] Specifically, the Arabic character dot matrix transmission system of this embodiment includes a processor and a memory. The memory stores a computer program, and when the computer program is executed by the processor, it implements the Arabic character dot matrix transmission method provided in the above embodiment.

[0163] In another aspect, the present invention also provides a computer-readable storage medium, which may be included in the Arabic character dot matrix transmission system described in the above embodiments; or it may exist independently and not assembled into the Arabic character dot matrix transmission system. The storage medium carries one or more computer programs, which, when executed by a processor of the Arabic character dot matrix transmission system, cause the Arabic character dot matrix transmission system to implement the Arabic character dot matrix transmission method provided in the above embodiments.

[0164] The above description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described in this disclosure. The specification and embodiments are considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A method for transmitting Arabic character dot matrix data, applied to a control terminal, characterized in that, include: Obtain the dot matrix specification parameters of the Arabic string to be processed and the target LED display screen, wherein the Arabic string to be processed includes multiple Arabic characters; The algorithm uses a pre-defined syntax parsing algorithm to identify the context position of each Arabic character in the string to be processed. Based on the context positions, the character form of each Arabic character is determined by a preset Arabic character morphology rule, and a character form sequence is generated; Based on the dot matrix specification parameters and the character shape sequence, the string to be processed is converted into raw dot matrix data; The original dot matrix data is compressed using a preset compression algorithm to generate compressed dot matrix data. Based on the data transmission protocol of the target LED display screen, the data transmission configuration is dynamically adjusted, and the compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can decompress and display the compressed dot matrix data.

2. The method according to claim 1, characterized in that, The character forms include independent forms, initial forms, middle forms, and final forms. The process of determining the character form of each Arabic character based on its context position using preset Arabic character form rules, and generating a character form sequence, includes: Based on the preset Arabic character morphology rules, the connection relationship between the target Arabic character and adjacent characters is identified. The target Arabic character is any of the Arabic characters mentioned above, and the adjacent characters include the left adjacent character and the right adjacent character. When the target Arabic character has no connection relationship with any of its adjacent characters, the character form of the target Arabic character is determined to be an independent entity; When the target Arabic character has the connection relationship with the left adjacent character but does not have the connection relationship with the right adjacent character, the character form of the target Arabic character is determined to be the initial form of the word; When the target Arabic character has no connection relationship with the left adjacent character but has a connection relationship with the right adjacent character, the character form of the target Arabic character is determined to be the word ending form; When the target Arabic character has the connection relationship with all the adjacent characters, the character form of the target Arabic character is determined to be the word-in-the-word form; Based on the character form of each Arabic character, the character form sequence is generated according to the character order of the Arabic string to be processed.

3. The method according to claim 2, characterized in that, The process of converting the string to be processed into raw dot matrix data based on the dot matrix specification parameters and the character pattern sequence includes: Based on the character shape sequence, determine the target vector glyph corresponding to the target Arabic character; Based on the dot matrix specification parameters, the target Arabic character is contour sampled to obtain the contour pixel set of the target Arabic character; The outline pixel set is filled by a preset pixel completion algorithm to generate the initial character dot matrix of the target Arabic character; Based on the character pattern sequence, pixel connection and smoothing are performed on adjacent initial character dot matrices in all the initial character dot matrices according to the character order to generate the original dot matrices data.

4. The method according to claim 3, characterized in that, The step of filling the contour pixel set with a preset pixel completion algorithm to generate the initial character dot matrix of the target Arabic character includes: Multiple polygonal contours are constructed based on the set of contour pixels, and the pixels located inside each polygonal contour are taken as internal pixels to generate an internal pixel set. All gap pixels are filled using a linear interpolation algorithm to generate a set of smooth edge pixels, wherein the gap pixels are the pixels between adjacent polygon contours; By combining the internal pixel set and the smooth edge pixel set, the filled character region of the target Arabic character is obtained; The filled character region is mapped to the pixel matrix corresponding to the dot matrix specification parameters to generate the initial character dot matrix of the target Arabic character.

5. The method according to claim 1, characterized in that, The step of compressing the original dot matrix data using a preset compression algorithm to generate compressed dot matrix data includes: Based on the original dot matrix data, the pixel data of the connected stroke area representing the transition between characters and the pixel data of the non-connected stroke area representing the main part of the character are identified and distinguished. The pixel data of the ligature region is encoded by the first preset compression algorithm to obtain the compressed pixel data of the ligature region. The non-connected stroke region pixel data is encoded by a second preset compression algorithm to obtain compressed non-connected stroke region pixel data. The compression ratio of the second preset compression algorithm is greater than that of the first preset compression algorithm. The compressed dot matrix data is generated based on the compressed pixel data of the connected stroke area and the compressed pixel data of the non-connected stroke area.

6. The method according to claim 1, characterized in that, The dynamic adjustment of data transmission configuration based on the data transmission protocol of the target LED display screen includes: Send a preset parameter query handshake command to the target LED display screen; The system receives and parses the response data packet of the target LED display screen to the preset parameter query handshake command. The response data packet encapsulates the data transmission protocol, which is used to characterize the hardware parameter requirements of the target LED display screen. Based on the aforementioned hardware parameter requirements, the data transmission configuration is dynamically adjusted to achieve synchronization of the data transmission protocol.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can, based on the data transmission protocol, use a preset decompression algorithm to losslessly restore the compressed dot matrix data to the original dot matrix data, wherein the original dot matrix data includes multiple initial character dot matrices. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen generates a dynamic rendering offset based on the preset Arabic character typesetting data and applies it to each of the initial character dot matrices to generate a dot matrix to be displayed. The preset Arabic character typesetting data is used to characterize the reference spacing between each of the initial character dot matrices and the pixel overlap rules of the ligature area. The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen can obtain the ambient light intensity value of the deployment location of the target LED display screen, and map the ambient light intensity value to the target display brightness level based on the preset visual comfort curve model; The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen dynamically adjusts the pixel driving parameters based on the target display brightness level to obtain the target pixel driving parameters; The compressed dot matrix data is sent to the target LED display screen so that the target LED display screen displays the dot matrix to be displayed based on the target pixel driving parameters through a preset driving circuit.

8. An Arabic character dot matrix transmission system, characterized in that, The Arabic character dot matrix transmission system includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code including computer instructions, and the one or more processors call the computer instructions to cause the Arabic character dot matrix transmission system to perform the method as described in any one of claims 1-7.

9. A computer-readable storage medium comprising instructions, characterized in that, When the instruction is executed on the Arabic character dot matrix transmission system, the Arabic character dot matrix transmission system performs the method as described in any one of claims 1-7.

10. A computer program product, characterized in that, When the computer program product is run on the Arabic character dot matrix transmission system, the Arabic character dot matrix transmission system performs the method as described in any one of claims 1-7.

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