Environment-adaptive label printing method, device, equipment and medium

Abstract

The invention discloses an environment-adaptive label printing method, device and equipment and a medium, and relates to the field of label printing. According to the method, under standard printing parameters, reference color development energy and reference heat loss energy of a printing head are obtained; the current environment temperature and the current printing speed are obtained, and a temperature compensation coefficient and a speed compensation coefficient are calculated; calculating the initial heating energy of the printing head; obtaining printing data corresponding to the current printing task, determining a heat historical parameter of each heating point and heating time of an adjacent heating point of each heating point based on the printing data, and generating a proximity effect compensation factor; adjusting the initial heating energy based on the thermal historical parameter and the proximity effect compensation factor to obtain target heating energy; and according to the target heating energy, multi-stage dynamic compensation is carried out on the printing head, so that the actual output energy of the printing head is the target heating energy. By implementing the technical scheme provided by the invention, the printing effect is improved.

Description

Technical Field

[0001] This application relates to the field of label printing, specifically to an environmentally adaptable label printing method, apparatus, equipment, and medium. Background Technology

[0002] Label printers, especially those using thermal printing or thermal transfer technology, are widely used in warehousing and logistics, retail manufacturing, and healthcare. Their working principle involves one or more linearly arranged arrays of heating resistors on the print head. Upon receiving a print command, these resistors are selectively energized and heated. When the print head comes into direct contact with a thermal medium (such as thermal paper), or with media such as ribbons and ordinary paper, the heat generated by the heating resistors causes a chemical reaction in the coating of the thermal paper, resulting in color development, or melts the ink on the ribbon and transfers it to the paper, thus forming preset text, barcodes, or images.

[0003] Currently, the operating temperature of printers is constantly changing. At lower ambient temperatures, the initial temperature of the print head and printing media is lower, requiring more energy to reach the color development threshold; if standard energy is still used, the printed content will appear washed out and too pale. Conversely, at higher ambient temperatures, less energy is needed to reach the color development threshold; if the energy is not adjusted accordingly, it will result in excess energy, causing the printed content to appear too dark, too thick, and blurry.

[0004] To address these issues, existing technologies typically employ compensation methods. One approach involves introducing temperature sensors for coarse global compensation based on ambient temperature, uniformly increasing or decreasing the energy at all heat-generating points. However, this compensation method fails to resolve the differences in energy demand at each heat-generating point caused by variations in printing speed and printing data, resulting in lower print quality. Summary of the Invention

[0005] This application provides an environmentally adaptable label printing method, apparatus, device, and medium, which improves printing results.

[0006] A first aspect of this application provides an environmentally adaptable label printing method, comprising: obtaining a reference color rendering energy and a reference heat loss energy of a printhead under standard printing parameters; obtaining the current ambient temperature and the current printing speed, and calculating a temperature compensation coefficient based on the current ambient temperature and a speed compensation coefficient based on the current printing speed; calculating the initial heat generation energy of the printhead based on the reference color rendering energy, the reference heat loss energy, the temperature compensation coefficient, and the speed compensation coefficient; obtaining printing data corresponding to the current printing task, and determining the thermal history parameters of each heat-generating point and the heating time of neighboring heat-generating points of each heat-generating point based on the printing data, and generating a proximity effect compensation factor; adjusting the initial heat generation energy based on the thermal history parameters and the proximity effect compensation factor to obtain a target heat generation energy; and performing multi-level dynamic compensation on the printhead according to the target heat generation energy so that the actual output energy of the printhead is the target heat generation energy.

[0007] By adopting the above technical solution, the initial heat generation energy of the printhead is dynamically adjusted based on the current ambient temperature and printing speed. Combined with the thermal history parameters of each heat source in the printing data and the thermal coupling effect of neighboring heat sources, a proximity effect compensation factor is generated to further optimize the target heat generation energy of the printhead. Finally, through a multi-level dynamic compensation mechanism, the actual output energy of the printhead is precisely controlled to match the target heat generation energy. This adaptive energy adjustment method can effectively adapt to different environmental conditions and printing tasks, ensuring the printhead operates in an optimal energy state and improving the stability and consistency of print quality. Simultaneously, reasonable energy management also helps reduce printhead energy consumption and heat loss, extending its service life and improving the overall performance and reliability of the label printer. This method eliminates the impact of changes in ambient temperature and printing speed on print quality through temperature compensation coefficients and speed compensation coefficients, improving print adaptability and consistency. Recording the historical heat generation of each heat source in the current task is used to estimate the current heat accumulation state of the heat source, achieving refined energy control for each heat source. By comprehensively considering multiple factors such as baseline energy, environmental parameters (temperature, speed), and printing data, the target heat generation energy of each heat source is dynamically adjusted to ensure accurate energy allocation. It improves the accuracy of printhead energy output and optimizes the reproduction of printed data, especially for printing complex images or high-density barcodes.

[0008] Optionally, the calculation formula for calculating the initial heat generation energy of the printhead based on the reference color development energy, the reference loss energy, the temperature compensation coefficient, and the speed compensation coefficient is as follows: ; Wherein, Q represents the initial heat generation energy, J1 represents the reference color development energy, J2 represents the reference heat loss energy, and T... 常温 T represents standard room temperature. 当前 T represents the current ambient temperature. max T represents the highest ambient temperature. min V represents the lowest ambient temperature. 常温 V represents the printing speed at standard room temperature. 当前 V represents the current printing speed. max V represents the maximum printing speed. min Indicates the minimum printing speed. Indicates the temperature compensation coefficient. This represents the speed compensation coefficient.

[0009] By adopting the above technical solution, the initial heat generation energy calculation formula fully considers the color development energy and heat loss energy of the printhead, as well as the influence of ambient temperature and printing speed. Specifically, the temperature compensation coefficient and speed compensation coefficient are calculated based on the deviations between the current ambient temperature and printing speed and those under standard operating conditions, respectively, which can quantitatively describe the degree of influence of environmental conditions on the printhead's heat generation energy. By combining the color development energy, heat loss energy, and temperature and speed compensation coefficients, the resulting initial heat generation energy can dynamically adapt to different environmental conditions, providing a reasonable starting point for subsequent energy optimization. This adaptive energy calculation method ensures that the printhead achieves stable color development performance under different environments, reduces fluctuations in print quality, and avoids excessive energy loss, thereby improving the printhead's energy utilization efficiency.

[0010] Optionally, the step of obtaining the printing data corresponding to the current printing task and determining the thermal history parameters of each heat point and the heating time of each heat point's neighboring heat points based on the printing data to generate a proximity effect compensation factor specifically includes: obtaining the printing task instruction sent by the host computer; obtaining the label file to be printed according to the printing task instruction; parsing and rasterizing the label file to obtain a bitmap-formatted printing data matrix; scanning the printing data matrix line by line and determining the preset heating time of the corresponding heat point based on the grayscale value of each pixel to obtain a heating time matrix; calculating the cumulative heating time of each heat point in historical printing based on the heating time matrix to obtain the thermal history parameters of each heat point; obtaining the heating time of neighboring heat points within a preset range with each heat point as the center of the heat point; establishing a thermal coupling model based on the heating time of the neighboring heat points, the distance between the neighboring heat points and the center of the heat point, and the angle between the neighboring heat points and the center of the heat point; and generating a proximity effect compensation factor based on the thermal history parameters and the thermal coupling model.

[0011] By employing the aforementioned technical solution, starting from the source of the printing task, the label file is parsed and rasterized into bitmap data, which is then further transformed into a heating time matrix, achieving precise mapping and quantification of printing data. Based on this, the historical cumulative heating time of each heating point is statistically analyzed to obtain thermal history parameters, reflecting the heat accumulation state of the heating point. Simultaneously, taking each heating point as the center, the heating time of its neighboring heating points is obtained, and combined with spatial distance and angle information, a thermal coupling model is established to describe the heat transfer and mutual influence between heating points. Finally, the thermal history parameters and the thermal coupling model are combined to generate a proximity effect compensation factor, which can comprehensively evaluate the thermal state of the heating point itself and the thermal interference from surrounding heating points, providing a quantitative basis for energy compensation. This data-driven thermal effect modeling method can improve the accuracy and dynamic response capability of printhead energy control, effectively reduce problems such as uneven heating and overheating, thereby improving print quality and stability.

[0012] Optionally, the step of taking each heat-generating point as the center of the heat-generating point, obtaining the heating time of neighboring heat-generating points within a preset range, and establishing a thermal coupling model based on the heating time of the neighboring heat-generating points, the distance between the neighboring heat-generating points and the center of the heat-generating point, and the angle between the neighboring heat-generating points and the center of the heat-generating point, specifically includes: calculating the spatial weight coefficient of the neighboring heat-generating points relative to the center of the heat-generating point based on the distance between the neighboring heat-generating points and the center of the heat-generating point, and the angle between the neighboring heat-generating points and the center of the heat-generating point; calculating the thermal weight coefficient of the neighboring heat-generating points based on the heating time of the neighboring heat-generating points, wherein the thermal weight coefficient is proportional to the heating time; multiplying the spatial weight coefficient and the thermal weight coefficient to obtain a comprehensive weight coefficient; establishing a polar coordinate system with the center of the heat-generating point as the origin, and mapping the comprehensive weight coefficient of each neighboring heat-generating point to the corresponding position in the polar coordinate system to obtain the thermal coupling model of the center of the heat-generating point.

[0013] By employing the above technical solution, the spatiotemporal characteristics of adjacent heating points are fully utilized. Through the calculation of spatial and thermal weighting coefficients, the influence intensity of adjacent heating points on the central heating point is quantitatively described. The spatial weighting coefficient is calculated based on the distance and angle between adjacent heating points and the central point, reflecting the spatial attenuation law of heat transfer; while the thermal weighting coefficient is calculated based on the heating time of adjacent heating points, reflecting the time effect of heat accumulation. Multiplying the two weighting coefficients yields a comprehensive weighting coefficient, which simultaneously considers the influence of spatial location and heating time. Finally, mapping the comprehensive weighting coefficient onto a two-dimensional plane using polar coordinates yields an intuitive thermal coupling model. This quantitative thermal coupling modeling method can accurately characterize the heat transfer characteristics between heating points, providing a reliable mathematical model for proximity effect compensation. This helps improve the precision of printhead energy control and reduce print quality defects caused by uneven local heating.

[0014] Optionally, generating a proximity effect compensation factor based on the thermal history parameters and the thermal coupling model specifically includes: normalizing the comprehensive weight coefficients of each of the neighboring heating points in the thermal coupling model to obtain normalized weight coefficients; substituting the normalized weight coefficients into a preset heat diffusion function to obtain the heat diffusion value of each of the neighboring heating points; weighted summing the heat diffusion values ​​of each of the neighboring heating points to obtain the proximity effect heat value of the heating point center; and weighted summing the thermal history parameters of the heating point center with the proximity effect heat value to obtain the proximity effect compensation factor of the heating point center.

[0015] By adopting the above technical solution, normalization processing and a heat diffusion function are further introduced on the basis of the thermal coupling model, enabling a quantitative assessment of the thermal impact of neighboring heating points. The heat diffusion function transforms the normalized weighting coefficients into heat diffusion values, describing the physical process of heat diffusion from neighboring heating points to the central heating point. By weighted summing of the heat diffusion values, the proximity effect heat value of the central heating point is obtained, comprehensively reflecting the intensity of thermal interference from surrounding heating points. Finally, the heat history parameters and the proximity effect heat value are weighted and summed to obtain the proximity effect compensation factor, quantitatively characterizing the actual energy compensation requirement of the central heating point under the dual influence of its own heat accumulation and surrounding thermal coupling. This multi-stage thermal effect quantification method can improve the accuracy and reliability of proximity effect compensation, better balance the temperature distribution inside the printhead, reduce print quality problems caused by local overheating or underheating, thereby improving print stability and consistency.

[0016] Optionally, the step of performing multi-level dynamic compensation on the print head based on the target heat energy specifically includes: determining whether the current ambient temperature or the current printing speed exceeds a preset range; if the current ambient temperature or the current printing speed exceeds the preset range, triggering a graded compensation mode; in the graded compensation mode, comparing the target heat energy with preset multi-level energy thresholds, determining the compensation level corresponding to the target heat energy based on the comparison result, the compensation level including a first level, a second level, and a third level; performing the corresponding compensation operation based on the compensation level; if the current ambient temperature and the current printing speed do not exceed the preset range, executing a normal energy compensation process, converting the target heat energy into a corresponding PWM waveform signal, and sending the PWM waveform signal to the print head to control the actual output energy of the print head.

[0017] By adopting the above technical solution, the compensation mode is adaptively selected based on whether the current ambient temperature and printing speed exceed the preset range. When environmental conditions are abnormal, a graded compensation mode is triggered, comparing the target heat energy with multi-level energy thresholds to automatically determine the optimal compensation level. This allows for dynamic adjustment of the compensation strategy according to different energy demands, achieving graded optimization of energy compensation. When environmental conditions are normal, the conventional energy compensation process is executed, converting the target heat energy into a PWM waveform signal to directly control the actual output energy of the printhead. This adaptive compensation mode selection mechanism can flexibly adjust the printhead's working state according to changes in the printing environment and energy demands, improving energy utilization efficiency and extending the printhead's lifespan while ensuring print quality. Furthermore, the introduction of a multi-level compensation scheme provides more optimization space and methods for printhead energy control, playing a crucial role, especially in extreme environments or high-intensity printing scenarios, thereby comprehensively improving the adaptability and reliability of the label printer.

[0018] Optionally, the step of performing the corresponding compensation operation according to the compensation level specifically includes: if the compensation level is the first level, then extending the conduction time of the heating resistor array in the print head according to a preset conduction time formula; if the compensation level is the second level, then increasing the conduction quantity of the heating resistor array in the print head according to a preset conduction quantity formula on the basis of extending the conduction time; if the compensation level is the third level, then activating the auxiliary heat dissipation device disposed around the print head on the basis of extending the conduction time and increasing the conduction quantity, and adjusting the heat dissipation power of the auxiliary heat dissipation device according to the target heat energy.

[0019] By adopting the above technical solution, targeted compensation measures are taken according to different compensation levels to adaptively adjust the key parameters of the printhead. In the first level of compensation, the conduction time of the heating resistor is extended by pre-setting a conduction time formula, which can increase the energy output of the heating resistor and compensate for insufficient energy in low-temperature or high-speed environments. In the second level of compensation, based on extending the conduction time, the number of heating resistors conducting is further increased by pre-setting a conduction quantity formula, which can improve the overall heating power of the printhead and cope with more severe environmental conditions. In the third level of compensation, based on the first two levels of compensation, an auxiliary heat dissipation device is introduced. By adjusting the heat dissipation power, the heat dissipation of the printhead is accelerated, avoiding the risk of overheating in extreme environments. This graded and progressive compensation strategy can flexibly adjust the working parameters of the printhead according to different energy requirements and environmental conditions, realizing dynamic optimization of energy compensation. At the same time, the quantitative adjustment of key parameters such as conduction time, conduction quantity, and heat dissipation power also provides a more refined and direct means for printhead energy control, which helps to improve compensation accuracy and efficiency. In addition, the addition of an auxiliary heat dissipation device expands the energy adjustment range of the printhead, providing strong support for ensuring print quality in extreme environments and further enhancing the environmental adaptability of the label printer.

[0020] A second aspect of this application provides an environmentally adaptable label printing apparatus, comprising a standard data acquisition module, a compensation coefficient calculation module, an environmental compensation module, a compensation factor calculation module, a heat energy adjustment module, and a dynamic compensation module, wherein: the standard data acquisition module is used to acquire the reference color development energy and reference heat loss energy of the print head under standard printing parameters; the compensation coefficient calculation module is used to acquire the current ambient temperature and the current printing speed, and calculate a temperature compensation coefficient based on the current ambient temperature, and a speed compensation coefficient based on the current printing speed; the environmental compensation module is used to calculate the temperature compensation coefficient based on the reference color development energy, the reference heat loss energy, and the temperature... The initial heat generation energy of the print head is calculated using the compensation coefficient and the speed compensation coefficient. The compensation factor calculation module is used to acquire the printing data corresponding to the current printing task, and determine the thermal history parameters of each heat-generating point and the heating time of the neighboring heat-generating points based on the printing data to generate a proximity effect compensation factor. The heat generation energy adjustment module is used to adjust the initial heat generation energy based on the thermal history parameters and the proximity effect compensation factor to obtain the target heat generation energy. The dynamic compensation module is used to perform multi-level dynamic compensation on the print head according to the target heat generation energy so that the actual output energy of the print head is the target heat generation energy.

[0021] A third aspect of this application provides an electronic device including a processor, a memory, a user interface, and a network interface, wherein the memory is used to store instructions, the user interface and the network interface are both used to communicate with other devices, and the processor is used to execute the instructions stored in the memory to cause the electronic device to perform the method as described in any of the foregoing.

[0022] A fourth aspect of this application provides a computer-readable storage medium storing instructions that, when executed, perform the method described in any of the preceding descriptions.

[0023] In summary, one or more technical solutions provided in this application have at least the following technical effects or advantages: 1. This method eliminates the impact of ambient temperature and printing speed variations on print quality through temperature and speed compensation coefficients, improving print adaptability and consistency. It records the historical heat generation of each heat source during the current task to estimate its current heat accumulation state, enabling precise energy control for each heat source. By comprehensively considering factors such as baseline energy, environmental parameters (temperature, speed), and print data, it dynamically adjusts the target heat generation energy for each heat source, ensuring accurate energy allocation. This improves the accuracy of printhead energy output and optimizes the reproduction of print data, particularly for printing complex images or high-density barcodes. Attached Figure Description

[0024] Figure 1 This is a flowchart illustrating an environmentally adaptable label printing method disclosed in an embodiment of this application; Figure 2 This is a schematic diagram of a module of an environmentally adaptable label printing device disclosed in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of this application.

[0025] Explanation of reference numerals in the attached diagram: 201, Standard data acquisition module; 202, Compensation coefficient calculation module; 203, Environmental compensation module; 204, Compensation factor calculation module; 205, Heat generation energy adjustment module; 206, Dynamic compensation module; 300, Electronic equipment; 301, Processor; 302, Communication bus; 303, User interface; 304, Network interface; 305, Memory. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0027] In the description of the embodiments of this application, the words "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design that is described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Rather, the use of the words "for example" or "for instance" is intended to present the relevant concepts in a specific manner.

[0028] In the description of the embodiments of this application, the term "multiple" means two or more. For example, multiple systems means two or more systems, and multiple screen terminals means two or more screen terminals. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0029] This application provides an environmentally adaptable label printing method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating an environmentally adaptive label printing method provided in an embodiment of this application. The method is applied to a label printer, which executes an environmentally adaptive label printing program. The method includes steps S101 to S106, as follows: Step S101: Under standard printing parameters, obtain the reference color development energy and reference heat loss energy of the print head.

[0030] In step S101, the printer acquires the reference color development energy and reference heat loss energy of the printhead under standard printing parameters. Standard printing parameters refer to a set of pre-set printing parameters in the printer's factory settings or calibration state, including standard ambient temperature (e.g., 25℃) and standard printing speed (e.g., 100mm / s). When printing under standard printing parameters, the energy output of the printhead is relatively stable and controllable.

[0031] To obtain the reference color rendering energy and reference heat loss energy of the printhead, the printer can employ the following method: First, the printer controls the printhead to perform a series of test prints under standard printing parameters. During the test prints, the printhead prints on the printing medium according to a preset test pattern. The preset test pattern can contain image elements of different gray levels to comprehensively evaluate the energy output characteristics of the printhead; this application does not limit this.

[0032] Secondly, during test printing, the printer uses an energy measurement unit to monitor the printhead's energy output in real time. This energy measurement unit can be a temperature sensor such as a thermocouple or thermistor installed near the printhead, or it can be an optical power meter based on the photoelectric conversion principle. Through this energy measurement unit, the printer can collect actual energy output data from the printhead at different grayscale levels.

[0033] The printer then analyzes and processes the collected energy output data. The baseline color rendering energy refers to the energy required for the printhead to produce the ideal color rendering effect corresponding to the target grayscale level under standard printing parameters. The printer can calculate the baseline color rendering energy by analyzing the energy output data at different grayscale levels and combining it with a preset grayscale level-energy mapping relationship.

[0034] Finally, the printer also obtains a baseline thermal loss energy. The baseline thermal loss energy refers to the energy loss caused by the printhead itself due to heat generation under standard printing parameters. Thermal loss energy is related to factors such as the material properties and structural design of the printhead. To obtain the baseline thermal loss energy, the printer can immediately shut off the printhead's energy input after the test print and continue monitoring the printhead's temperature change. Over time, the printhead will gradually cool down, and its temperature change curve can reflect the magnitude of the thermal loss energy. The printer can then calculate the baseline thermal loss energy using a thermal model based on the temperature change curve.

[0035] For example, suppose a printer, under standard printing parameters, controls the printhead to perform test printing at 10 different grayscale levels. An energy measurement device records the actual energy output of the printhead at each grayscale level. By analyzing the energy output data, the printer finds that the printhead's energy output is closest to the ideal color rendering effect at a grayscale level of 50%, and therefore determines this energy value as the baseline color rendering energy. After the test printing is completed, the printer turns off the printhead energy input and records the printhead temperature change curve. Based on the temperature change curve, the printer calculates the heat loss energy generated by the printhead per pixel printed under standard printing parameters, and determines this as the baseline heat loss energy.

[0036] Step S102: Obtain the current ambient temperature and current printing speed, and calculate the temperature compensation coefficient based on the current ambient temperature and the speed compensation coefficient based on the current printing speed.

[0037] In step S102, the label printer acquires the current ambient temperature and current printing speed, and calculates a temperature compensation coefficient based on the current ambient temperature and a speed compensation coefficient based on the current printing speed. These two compensation coefficients are used to subsequently adjust the printhead's energy output to adapt to different environmental conditions and printing speed requirements.

[0038] To obtain the current ambient temperature, label printers typically have a built-in or external temperature sensor. This temperature sensor can be a thermistor, thermocouple, digital thermometer, etc., and it is installed inside the printer or near the print head to monitor changes in the printing environment's temperature in real time. The label printer obtains the current ambient temperature value by reading the output signal from the temperature sensor.

[0039] The current printing speed can be obtained in the following ways: The label printer's control system integrates a speed sensor or encoder to detect the printer's motion status in real time. The speed sensor can be a photoelectric encoder, magnetic encoder, etc., which calculates the current printing speed by measuring the rotational speed of the printer motor shaft or the transfer speed of the label paper. The label printer's control system converts the speed signal into a specific speed value, such as the length of labels printed per second (e.g., 100 mm / s).

[0040] After obtaining the current ambient temperature, the label printer calculates a temperature compensation coefficient based on this value. The temperature compensation coefficient reflects the degree to which the ambient temperature affects the printhead's energy output. Typically, the label printer internally stores a formula for calculating the temperature-compensation coefficient. The label printer substitutes the current ambient temperature into the formula to obtain the corresponding temperature compensation coefficient.

[0041] Similarly, the label printer calculates a speed compensation factor based on the current printing speed. The speed compensation factor reflects the degree to which the printing speed affects the printhead's energy output. The label printer also stores a speed-compensation factor lookup table or calculation formula, pre-defined based on factors such as the printhead's response characteristics and energy transfer efficiency. The label printer substitutes the current printing speed into the lookup table or formula to obtain the corresponding speed compensation factor.

[0042] Step S103: Calculate the initial heat generation energy of the printhead based on the reference color development energy, reference loss energy, temperature compensation coefficient, and speed compensation coefficient.

[0043] In step S103, the formula for calculating the initial heat generation energy of the printhead, based on the reference color development energy, reference loss energy, temperature compensation coefficient, and speed compensation coefficient, is as follows: ;; Where Q represents the initial heat generation energy, J1 represents the reference color development energy, J2 represents the reference heat loss energy, and T... 常温 T represents standard room temperature. 当前 T represents the current ambient temperature. max T represents the highest ambient temperature. min V represents the lowest ambient temperature. 常温 V represents the printing speed at standard room temperature. 当前 V represents the current printing speed.max V represents the maximum printing speed. min Indicates the minimum printing speed. Indicates the temperature compensation coefficient. This represents the speed compensation coefficient.

[0044] Specifically, the label printer reads the pre-acquired reference color development energy (J1) and reference heat loss energy (J2) from the memory. These two energy values ​​were obtained in step S101 through test printing and energy monitoring under standard printing parameters. They reflect the reference energy requirements of the printhead under ideal conditions.

[0045] Then, the temperature compensation coefficient and speed compensation coefficient calculated by the label printer are substituted into the formula. The temperature compensation coefficient is based on standard ambient temperature (T). 常温 ) and current ambient temperature (T) 当前 The difference between ) and the highest ambient temperature (T max ) and minimum ambient temperature (T min It is calculated based on the ambient temperature. It reflects the degree to which ambient temperature affects the printhead's energy output. The speed compensation coefficient is based on the current printing speed (V). 当前 ) and printing speed at standard room temperature (V 常温 The difference between ) and the printer's maximum printing speed (V max ) and minimum printing speed (V min This is calculated and reflects the degree to which printing speed affects the printhead's energy output. The temperature compensation coefficient and the speed compensation coefficient have opposite signs. This is because when the ambient temperature rises, the air temperature around the printhead also rises, making heat dissipation of the printhead worse and requiring a reduction in energy input to avoid overheating; conversely, when the printing speed increases, the area of ​​printing media passing through the printhead per unit time increases, requiring an increase in energy input to ensure print quality. Therefore, the temperature compensation coefficient is calculated by subtracting the current ambient temperature from the standard room temperature in the numerator, while the speed compensation coefficient is calculated by subtracting the standard printing speed from the current printing speed in the numerator, to ensure consistency in the compensation direction.

[0046] The purpose of this formula is to calculate the initial heat generation energy of the print head based on the current ambient temperature and printing speed, in order to achieve adaptive adjustment of printing energy. The derivation of the formula is as follows: Determine the baseline energy: The heat generation energy of the printhead can be divided into two parts: color development energy (J1) and heat loss energy (J2). Color development energy refers to the effective energy used to heat the printing medium and cause it to change color; while heat loss energy refers to the ineffective energy loss during the printing process due to factors such as resistive heating and heat conduction of the printhead.

[0047] Under ideal environmental conditions (such as standard room temperature T and standard printing speed V), the initial heat generation energy Q of the printhead is equal to the sum of the color development energy and the heat loss energy, that is: Q = J1 + J2; 2. Introducing a Temperature Compensation Coefficient: When the ambient temperature changes, the heat dissipation efficiency of the printhead is also affected. Generally speaking, an increase in ambient temperature worsens the heat dissipation conditions of the printhead, leading to an increase in actual heat loss; conversely, a decrease in ambient temperature improves the heat dissipation conditions of the printhead, leading to a decrease in actual heat loss. To quantify the impact of ambient temperature on heat loss, a temperature compensation coefficient is introduced into the formula. The principle of calculating the temperature compensation coefficient is: the difference between the current ambient temperature and the standard room temperature (T... 常温 - T 当前 ), divided by the printer's operating temperature range (T max - T min This ratio reflects the degree of deviation of the current ambient temperature from the standard ambient temperature, as well as the direction (increase or decrease) and intensity (the greater the deviation, the stronger the impact) of this deviation on heat loss energy.

[0048] 3. Introducing a speed compensation coefficient: Similarly, when the printing speed changes, the area of ​​the printing medium passing through the printhead per unit time also changes, thus affecting the heat generation efficiency of the printhead. Generally speaking, the faster the printing speed, the shorter the effective heating time of the printhead, resulting in a decrease in actual color development energy; conversely, the slower the printing speed, the longer the effective heating time of the printhead, resulting in an increase in actual color development energy.

[0049] To quantify the impact of printing speed on color development energy, a speed compensation coefficient is introduced into the formula. Here, Vcurrent represents the current printing speed, V… max and V min These represent the printer's maximum and minimum printing speeds, respectively.

[0050] The calculation principle of the speed compensation coefficient is similar to that of the temperature compensation coefficient: the difference between the current printing speed and the standard printing speed (V) is calculated. 当前 - V 常温 ), divided by the printer's printing speed range (V max - V min This ratio reflects the degree of deviation of the current printing speed from the standard printing speed, as well as the direction (increase or decrease) and intensity (the greater the deviation, the stronger the effect) of this deviation on color development energy.

[0051] It is important to note that the signs of the temperature compensation coefficient and the speed compensation coefficient are opposite in the formula. This is because an increase in ambient temperature leads to an increase in heat loss energy, requiring a reduction in initial heat generation energy to avoid overheating; conversely, an increase in printing speed leads to a decrease in color development energy, requiring an increase in initial heat generation energy to ensure print quality.

[0052] 4. Initial Heating Energy Formula: Combining the baseline energy, temperature compensation coefficient, and speed compensation coefficient, we obtain the complete formula for the initial heating energy as shown above. This formula indicates that the initial heating energy Q equals the baseline color development energy J1, plus the baseline heat loss energy J2 after temperature and speed compensation. The temperature compensation coefficient and speed compensation coefficient are multiplied by the baseline heat loss energy to obtain the correction amount for the heat loss energy based on ambient temperature and printing speed. Then, the corrected heat loss energy is added to the baseline color development energy to obtain the total energy required for the print head to complete printing per unit area under the current environmental conditions, i.e., the initial heating energy.

[0053] In summary, this formula, by introducing temperature and speed compensation coefficients, quantitatively describes the functional relationship between ambient temperature, printing speed, and printhead energy demand, achieving adaptive adjustment of printing energy. This adjustment method can effectively compensate for print quality fluctuations caused by changes in environmental conditions, ensuring the consistency and stability of print results. Simultaneously, reasonable energy compensation can also prevent excessively high or low printhead energy output, reducing printhead wear and failure risks, and extending its service life.

[0054] For example, suppose the label printer's maximum operating temperature is 40℃, its minimum operating temperature is 10℃, and its standard ambient temperature is 25℃. If the current ambient temperature is 30℃, then the temperature compensation coefficient is: (25-30) / (40-10) = -0.167. Further suppose the label printer's maximum printing speed is 150mm / s, its minimum printing speed is 50mm / s, and its standard ambient temperature printing speed is 100mm / s. If the current printing speed is 120mm / s, then the speed compensation coefficient is: (120-100) / (150-50) = 0.2.

[0055] The label printer substitutes the baseline color development energy, baseline heat loss energy, temperature compensation coefficient, and speed compensation coefficient into the formula to calculate the initial heat generation energy Q. Finally, the label printer stores the calculated initial heat generation energy Q in memory as input parameters for subsequent steps. This initial heat generation energy integrates the influence of standard printing energy requirements and actual usage conditions, providing a baseline value for printhead energy control.

[0056] Step S104: Obtain the printing data corresponding to the current printing task, and determine the thermal history parameters of each heat point and the heating time of the neighboring heat points based on the printing data, and generate the proximity effect compensation factor.

[0057] In step S104, the printing data corresponding to the current printing task is obtained, and the thermal history parameters of each heat point and the heating time of the neighboring heat points are determined based on the printing data to generate a proximity effect compensation factor. Specifically, this includes: obtaining the printing task instruction sent by the host computer; obtaining the label file to be printed according to the printing task instruction; parsing and rasterizing the label file to obtain a bitmap-form printing data matrix; scanning the printing data matrix line by line, determining the preset heating time of the corresponding heat point according to the gray value of each pixel to obtain a heating time matrix; calculating the cumulative heating time of each heat point in the historical printing based on the heating time matrix to obtain the thermal history parameters of each heat point; taking each heat point as the center of the heat point, obtaining the heating time of the neighboring heat points within a preset range, and establishing a thermal coupling model based on the heating time of the neighboring heat points, the distance between the neighboring heat points and the center of the heat point, and the angle between the neighboring heat points and the center of the heat point; and generating a proximity effect compensation factor based on the thermal history parameters and the thermal coupling model.

[0058] Specifically, the label printer acquires the print data corresponding to the current print job, and based on the print data, determines the thermal history parameters of each heat source and the heating time of neighboring heat sources, generating a proximity effect compensation factor. This process is mainly to analyze the spatial distribution and temporal characteristics of the print data, so as to enable fine-grained control of the print head's energy output in subsequent steps.

[0059] First, the label printer receives the print job instruction from the host computer and retrieves the label file to be printed according to the instruction. The label file contains the label's graphics, text, barcode, and other content, and is the data source for the print job.

[0060] Next, the label printer parses and rasterizes the label file. The parsing process converts the label file into a data format that the printer can recognize, extracting attributes such as the position, size, and color of elements like images and text. Rasterization converts vector-format graphics into bitmap format, generating a print data matrix composed of pixels. Each pixel in the print data matrix has a corresponding grayscale value, representing the print density at that location.

[0061] Next, the label printer scans the print data matrix line by line, determining the preset heating time for each heating point based on the grayscale value of each pixel. Each heating point on the print head corresponds to one pixel; a higher grayscale value indicates a higher print density for that pixel, requiring a longer heating time. Through this scanning process, the label printer obtains a heating time matrix, recording the theoretical heating time for each heating point in the current print job.

[0062] After obtaining the heating time matrix, the label printer also considers the historical printing data of each heating point. The label printer maintains a thermal history parameter table to calculate the cumulative heating time of each heating point over a past period. This process requires the label printer to add the data from the heating time matrix to the thermal history parameter table after each print job, and then perform a weighted average of the historical data according to a time decay function to obtain the updated thermal history parameters. The thermal history parameter refers to the cumulative heating time of each heating point in the printhead over a past period. It reflects the historical working status and heat accumulation of the heating point. In actual printing, due to the different printed content, the heating time of each heating point is uneven. Some heating points may work frequently, accumulating a large amount of heat; while other heating points may work infrequently, accumulating less heat. This imbalance in heating time leads to uneven temperature distribution inside the printhead, thus affecting print quality.

[0063] To quantify the historical operating status of heat points, label printers have introduced thermal history parameters. These parameters can be represented by a numerical value or a vector, recording the cumulative heating time of the heat point over a past period. This time span can be set based on the printhead's heat dissipation characteristics and the frequency of printing jobs, typically ranging from a few seconds to several minutes.

[0064] In addition to thermal history parameters, label printers also need to consider the thermal coupling effect between heat sources. The thermal coupling effect refers to the influence of the heating at one heat source on the temperature distribution of its neighboring heat sources, leading to uneven print density. To quantify this effect, the label printer obtains the heating time of neighboring heat sources within a certain range around each heat source. Then, based on the heating time of neighboring heat sources, their distance from the center point, and their relative angle, the label printer establishes a thermal coupling model. This model can be a multinomial function or a neural network, used to estimate the degree of influence of neighboring heat sources on the temperature of the center point.

[0065] Finally, the label printer generates a proximity effect compensation factor based on thermal history parameters and a thermal coupling model. The compensation factor is a coefficient used to adjust the heating time, comprehensively considering both the historical accumulated heat of the heating point itself and the thermal coupling effect of neighboring points. The compensation factor can be a numerical matrix, the same size as the heating time matrix, with each element corresponding to a compensation coefficient for a heating point.

[0066] For example, suppose a label printer's printhead has 300 heating points, each with a preset heating time of 0.5ms. In historical print jobs, the 100th heating point has a cumulative heating time of 1000ms, higher than average. Meanwhile, within a radius of 3 points around this heating point, the average heating time of other heating points is 0.6ms. According to the thermal coupling model, these neighboring points will cause the temperature of the 100th heating point to rise by 0.2℃. Therefore, in the proximity effect compensation factor generated by the label printer, the value of the 100th element might be 0.8, indicating that the heating time of this point needs to be shortened by 20% to compensate for the effects of thermal history and thermal coupling.

[0067] In one possible implementation, taking each heat-generating point as the center of the heat-generating point, the heating time of neighboring heat-generating points within a preset range is obtained. Based on the heating time of neighboring heat-generating points, the distance between neighboring heat-generating points and the center of the heat-generating point, and the angle between neighboring heat-generating points and the center of the heat-generating point, a thermal coupling model is established. Specifically, this includes: calculating the spatial weight coefficient of neighboring heat-generating points relative to the center of the heat-generating point based on the distance between neighboring heat-generating points and the center of the heat-generating point, and the angle between neighboring heat-generating points and the center of the heat-generating point; calculating the thermal weight coefficient of neighboring heat-generating points based on the heating time of neighboring heat-generating points, wherein the thermal weight coefficient is proportional to the heating time; multiplying the spatial weight coefficient and the thermal weight coefficient to obtain the comprehensive weight coefficient; establishing a polar coordinate system with the center of the heat-generating point as the origin, and mapping the comprehensive weight coefficient of each neighboring heat-generating point to the corresponding position in the polar coordinate system to obtain the thermal coupling model of the center of the heat-generating point.

[0068] Specifically, in establishing the thermal coupling model, the label printer takes each heat-generating point as the center and obtains the heating time of neighboring heat-generating points within a preset range around it. Then, the label printer calculates a comprehensive weighting coefficient based on the heating time of the neighboring heat-generating points, their distance from the center point, and their relative angle, and maps these weighting coefficients to a polar coordinate system with the center point as the origin to obtain the thermal coupling model of that heat-generating point.

[0069] Specifically, the label printer first calculates a spatial weighting coefficient based on the distance and angle between neighboring heat points and the center point. This spatial weighting coefficient reflects the degree of spatial influence of neighboring heat points on the center point. Generally, heat points closer to the center point have a larger spatial weighting coefficient, while those farther away have a smaller coefficient. Furthermore, neighboring heat points located directly above, below, to the left, or to the right of the center point have a larger spatial weighting coefficient than heat points located diagonally opposite it. The label printer can use a preset spatial weighting function to calculate the spatial weighting coefficient for each neighboring heat point based on distance and angle.

[0070] For example, suppose a nearby hot spot is 2 points away from the center point, with a relative angle of 45 degrees. The label printer substitutes these two parameters into the spatial weighting function, obtaining a spatial weighting coefficient of 0.7 for that nearby hot spot.

[0071] Next, the label printer calculates a heat weighting coefficient based on the heating time of neighboring heating points. This coefficient reflects the influence of the heating intensity of neighboring heating points on the center point. Neighboring heating points with longer heating times have larger heat weighting coefficients; conversely, neighboring heating points with shorter heating times have smaller coefficients. The heat weighting coefficient is directly proportional to the heating time, and the label printer can calculate it using a simple linear function: multiplying the heating time by a proportionality factor.

[0072] For example, assuming the heating time of a nearby heat source is 0.8 ms and the scaling factor is 1.2, then the heat weighting factor of that nearby heat source is 0.8 × 1.2 = 0.96.

[0073] After calculating the spatial weighting coefficient and the thermal weighting coefficient, the label printer multiplies these two coefficients to obtain the comprehensive weighting coefficient. The comprehensive weighting coefficient takes into account both the spatial location and heating intensity of nearby heating points, and can more accurately reflect their influence on the temperature of the center point.

[0074] Continuing with the example above, assuming that the spatial weight coefficient of a nearby heat source is 0.7 and the heat weight coefficient is 0.96, then its comprehensive weight coefficient is 0.7 × 0.96 = 0.672.

[0075] Finally, the label printer establishes a polar coordinate system with the center of the heating point as the origin. The polar coordinate system uses radius and angle as coordinates, conveniently representing the spatial position of neighboring heating points relative to the center point. The label printer maps the comprehensive weight coefficient of each neighboring heating point to its corresponding position in the polar coordinate system, forming a thermal coupling model. The thermal coupling model can be represented by a two-dimensional matrix or a polar equation, describing the temperature distribution around the center point.

[0076] For example, suppose there are 8 neighboring hot spots around a given hot spot, with combined weighting coefficients of 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, and 0.1, corresponding to angles of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°. The label printer arranges these weighting coefficients in angular order, resulting in a polar coordinate equation: r(θ) = 0.8 + 0.7cos(θ-45°) + 0.6cos(θ-90°) + 0.5cos(θ-135°) + 0.4cos(θ-180°) + 0.3cos(θ-225°) + 0.2cos(θ-270°) + 0.1cos(θ-315°), where r represents the weighting coefficient and θ represents the angle. This equation is the thermal coupling model of the hot spot and can be used to predict the actual temperature at the center point.

[0077] In one possible implementation, a proximity effect compensation factor is generated based on thermal history parameters and a thermal coupling model. Specifically, this includes: normalizing the comprehensive weight coefficients of each neighboring heating point in the thermal coupling model to obtain normalized weight coefficients; substituting the normalized weight coefficients into a preset heat diffusion function to obtain the heat diffusion value of each neighboring heating point; weighted summing the heat diffusion values ​​of each neighboring heating point to obtain the proximity effect heat value of the heating point center; and weighted summing the thermal history parameters of the heating point center with the proximity effect heat value to obtain the proximity effect compensation factor of the heating point center.

[0078] Specifically, the label printer normalizes the combined weight coefficients of each neighboring heat source in the thermal coupling model. Normalization maps the weight coefficients to the [0,1] interval, ensuring the sum of all weight coefficients is 1. This facilitates subsequent heat diffusion calculations and comparisons between different heat sources. The label printer can use methods such as maximum value normalization or softmax normalization to convert the combined weight coefficients into normalized weight coefficients.

[0079] For example, suppose that in a thermal coupling model of a certain heat source, the combined weight coefficients of the eight neighboring heat sources are 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, and 0.1, respectively. The label printer divides these weight coefficients by their sum (3.6) to obtain the normalized weight coefficients: 0.22, 0.19, 0.17, 0.14, 0.11, 0.08, 0.06, and 0.03.

[0080] Next, the label printer inputs the normalized weighting coefficients into a preset heat diffusion function to calculate the heat diffusion value for each neighboring heat source. The heat diffusion function describes the heat transfer pattern between heat sources and can be constructed based on the physical equations of heat conduction or empirical formulas. The independent variable of the heat diffusion function is the normalized weighting coefficient, and the dependent variable is the heat diffusion value, representing the amount of heat transferred from neighboring heat sources to the center point. The heat diffusion function is a monotonically increasing function; the larger the normalized weighting coefficient, the larger the heat diffusion value.

[0081] For example, suppose the heat diffusion function used by the label printer is: y = 2x^2, where x is the normalized weighting coefficient and y is the heat diffusion value. For the above 8 neighboring heat points, their heat diffusion values ​​are: 0.10, 0.07, 0.06, 0.04, 0.02, 0.01, 0.01, and 0.00, respectively.

[0082] Then, the label printer performs a weighted summation of the heat diffusion values ​​from each neighboring heat source to obtain the proximity effect heat value at the center of the heat source. This process essentially transforms the thermal coupling model into a scalar value representing the overall thermal coupling effect on the center point. During the weighted summation, the weighting coefficients are the normalized weighting coefficients; the heat diffusion value is multiplied by the normalized weighting coefficient, and then summed.

[0083] Continuing with the example above, the normalized weighting coefficients for the eight neighboring heat sources are 0.22, 0.19, 0.17, 0.14, 0.11, 0.08, 0.06, and 0.03, respectively, and the heat diffusion values ​​are 0.10, 0.07, 0.06, 0.04, 0.02, 0.01, 0.01, and 0.00, respectively. Multiplying them together and summing them gives the proximity effect heat value at the center of the heat source as 0.05.

[0084] Finally, the label printer performs a weighted summation of the thermal history parameters at the center of the heating point and the proximity effect heat value to obtain a proximity effect compensation factor. The thermal history parameters reflect the historical accumulated heat of the heating point itself, while the proximity effect heat value reflects the thermal coupling effect of neighboring heating points. Both parameters affect the actual temperature of the heating point and need to be considered comprehensively. The label printer integrates them into a single compensation factor through a weighted summation. During the weighted summation, the thermal history parameters and the proximity effect heat value are each multiplied by a weighting coefficient before being added together. These two weighting coefficients can be determined based on experience or experiments to balance the influence of the heating point's own heat and the coupled heat.

[0085] For example, suppose the thermal history parameter of a heat source is 0.8, and the proximity effect heat value is 0.05. The label printer sets the weighting coefficient of the thermal history parameter to 0.7 and the weighting coefficient of the proximity effect heat value to 0.3. Then the proximity effect compensation factor for this heat source is: 0.8 × 0.7 + 0.05 × 0.3 = 0.575.

[0086] Step S105: Based on the thermal history parameters and the proximity effect compensation factor, adjust the initial calorific energy to obtain the target calorific energy.

[0087] In step S105, the label printer reads the previously calculated initial heat generation energy, thermal history parameters, and proximity effect compensation factor from memory. The initial heat generation energy is a baseline energy value calculated based on standard printing parameters and real-time environmental conditions, reflecting the theoretical energy requirement of the heat source in the current printing task. The thermal history parameters and proximity effect compensation factor represent the historical accumulated heat of the heat source itself and the thermal coupling effect of surrounding heat sources, respectively. These are generated in step S104 based on printing data and a thermal coupling model.

[0088] Next, the label printer uses a preset energy adjustment function, taking the initial heat generation energy, thermal history parameters, and proximity effect compensation factor as inputs, to calculate the target heat generation energy. The energy adjustment function can be a linear combination function or a nonlinear mapping function; its specific form depends on the characteristics of the printhead and the control algorithm. The function's purpose is to add the effects of the thermal history parameters and proximity effect compensation factor to the initial heat generation energy to obtain the corrected target heat generation energy.

[0089] For example, the energy adjustment function used by a label printer is: E_target = E_init × (1 - 0.2 × H_history - 0.1 × C_neighbor), where E_target is the target heat energy, E_init is the initial heat energy, H_history is the thermal history parameter, and C_neighbor is the proximity effect compensation factor. This function means that the target heat energy is equal to the initial heat energy multiplied by a reduction factor, which is a linear combination of the thermal history parameter and the proximity effect compensation factor. The coefficient before the thermal history parameter is 0.2, indicating that for every unit increase in historical accumulated heat, the target heat energy must be reduced by 20%; the coefficient before the proximity effect compensation factor is 0.1, indicating that for every unit increase in the thermal coupling effect of neighboring heat sources, the target heat energy must be reduced by 10%.

[0090] Assume the initial calorific energy of a certain heat source is 10 mJ, the thermal history parameter is 0.8, and the proximity effect compensation factor is 0.5. Substituting these values ​​into the energy adjustment function, we obtain the target calorific energy: 10 × (1 - 0.2 × 0.8 - 0.1 × 0.5) = 7.9 mJ. It can be seen that due to the large historical accumulated heat at this heat source and the thermal coupling effect of neighboring heat sources, its target calorific energy is reduced by 21% compared to the initial calorific energy.

[0091] The label printer calculates the target heat output for each heating element using an energy adjustment function, forming a target heat output matrix. This matrix is ​​the same size as the heating element array on the printhead, with each element corresponding to the target heat output value for that heating element. The printhead control circuit then adjusts the actual energy output of each heating element based on this matrix, making it as close as possible to the target value.

[0092] Finally, the label printer transmits the target heat energy matrix to the printhead control circuit and triggers the printhead to start printing. During printing, the printhead control circuit monitors the temperature and energy status of each heat source in real time and dynamically adjusts the energy output based on feedback signals to maintain the target heat energy. Simultaneously, the label printer compares the actual energy output value with the target heat energy, calculates the energy error, and feeds the error signal back to the control algorithm to optimize the energy calculation for the next print.

[0093] Step S106: Perform multi-level dynamic compensation on the print head according to the target heat energy so that the actual output energy of the print head is the target heat energy.

[0094] In step S106, multi-level dynamic compensation is performed on the print head based on the target heat energy. Specifically, this includes: determining whether the current ambient temperature or current printing speed exceeds a preset range; if the current ambient temperature or current printing speed exceeds the preset range, triggering a graded compensation mode; in the graded compensation mode, comparing the target heat energy with preset multi-level energy thresholds, and determining the compensation level corresponding to the target heat energy based on the comparison result. The compensation levels include the first level, the second level, and the third level; performing the corresponding compensation operation based on the compensation level; if the current ambient temperature and current printing speed do not exceed the preset range, executing the normal energy compensation process, converting the target heat energy into a corresponding PWM waveform signal, and sending the PWM waveform signal to the print head to control the actual output energy of the print head.

[0095] Specifically, the label printer determines whether the current ambient temperature and printing speed exceed preset ranges. These preset ranges are determined based on the printhead's performance and the printer's design parameters, typically including a temperature range and a speed range. If the current ambient temperature or printing speed exceeds the preset range, it means the printhead is operating under extreme or abnormal conditions, requiring special compensation measures, i.e., triggering a graded compensation mode.

[0096] In graded compensation mode, the label printer compares the target heat energy with preset multi-level energy thresholds and determines the compensation level to which the target heat energy belongs based on the comparison results. The energy thresholds are set according to the power range of the printhead and the response characteristics of the thermistor, dividing the printhead's operating energy into multiple intervals. Each energy interval corresponds to a compensation level, indicating the type and intensity of compensation operation to be performed at that energy level. In this embodiment, the compensation levels include Level 1, Level 2, and Level 3, corresponding to low, medium, and high energy intervals, respectively.

[0097] Once the compensation level is determined, the label printer performs the corresponding compensation operation. Different compensation levels correspond to different compensation strategies, which can be achieved by adjusting parameters such as the printhead drive voltage, pulse width, and heating time.

[0098] For example, in the first level of compensation, the label printer may appropriately increase the drive voltage of the printhead to compensate for insufficient energy in low-temperature or high-speed environments; in the second level of compensation, the label printer may extend the heating pulse width of the printhead to ensure that the target heating energy is achieved under standard conditions; and in the third level of compensation, the label printer may reduce the drive voltage of the printhead and shorten the heating time to avoid overheating in high-temperature or low-speed environments. The specific compensation operation needs to be designed based on the characteristic curves of the printhead and the control algorithm.

[0099] If the current ambient temperature and printing speed are within the preset range, it means that the printhead is working in normal mode. At this time, the label printer performs the normal energy compensation process.

[0100] In the normal compensation process, the label printer converts the target heat energy into a corresponding PWM (Pulse Width Modulation) waveform signal. PWM is a commonly used power control technique that adjusts the average power of the load by modulating the duty cycle of a square wave. The heating element of the printhead can be considered a resistive load, and its heat generation is proportional to the current flowing through it. The label printer calculates the required PWM duty cycle based on the target heat energy and then generates the corresponding PWM waveform. The amplitude of the PWM waveform represents the drive voltage of the printhead, and the pulse width represents the energizing time of the heating element.

[0101] For example, assuming the printhead's rated voltage is 24V, it can generate 10mJ of heat when operating at the rated voltage for 100μs. If the target heat generation energy is 8mJ, the corresponding PWM duty cycle is 80%, meaning that the PWM waveform is at a high level (24V) for 80% of the time and at a low level (0V) for 20% of the time in each cycle.

[0102] After generating the PWM waveform, the label printer sends it to the printhead control circuit. Based on the PWM waveform, the control circuit switches the printhead's power supply on and off, causing the heating element to heat up and cool down within a specified time, thus ensuring the printhead's actual output energy closely approximates the target heating energy. Simultaneously, the control circuit also monitors the temperature and resistance of the heating element in real time and sends feedback signals back to the printer to monitor the printhead's operating status and energy output accuracy.

[0103] In one possible implementation, a corresponding compensation operation is performed according to the compensation level, specifically including: if the compensation level is the first level, the conduction time of the heating resistor array in the print head is extended according to a preset conduction time formula; if the compensation level is the second level, the conduction number of the heating resistor array in the print head is increased according to a preset conduction number formula, based on the extended conduction time; if the compensation level is the third level, the auxiliary heat dissipation device located around the print head is activated, based on the extended conduction time and increased conduction number, and the heat dissipation power of the auxiliary heat dissipation device is adjusted according to the target heat energy.

[0104] Specifically, in graded compensation mode, the label printer performs corresponding compensation operations based on the compensation level to adjust the actual output energy of the printhead. Different compensation levels employ different compensation strategies, adapting to different printing conditions and energy requirements by controlling the conduction time and number of heating resistor arrays and the heat dissipation power of auxiliary heat dissipation devices.

[0105] When the compensation level is Level 1, the label printer extends the conduction time of the heating resistor array in the printhead according to a preset conduction time formula. The heating resistor array is the core component of the printhead, composed of multiple tiny resistive elements that convert electrical energy into heat energy through the Joule heating effect. The conduction time refers to the heating time of the resistive elements, determining the accumulation and transfer of heat. In low-energy compensation scenarios, the label printer appropriately extends the conduction time, allowing the heating resistor array to generate more heat to compensate for the insufficient energy. The conduction time formula is predetermined based on the power characteristics and thermal response curve of the printhead, and the required conduction time compensation amount can be calculated according to the target heat energy.

[0106] For example, suppose the printhead's on-time in standard mode is 100 μs, the target heat output is 8 mJ, but the current ambient temperature is low, resulting in an actual output energy of only 7 mJ. The label printer detects insufficient energy and triggers the first level of compensation. According to the preset on-time formula, every 1 mJ decrease in energy requires an extension of 10 μs in the on-time. Therefore, the label printer extends the printhead's on-time to 110 μs to compensate for the energy loss.

[0107] When the compensation level is level two, the label printer, in addition to extending the conduction time, further increases the number of conductive elements in the heating resistor array within the printhead according to a preset conduction quantity formula. The conduction quantity refers to the number of resistor elements simultaneously heated, which, along with the conduction time, determines the total heating power of the printhead. In medium energy compensation scenarios, simply extending the conduction time may not meet the target heating energy requirements, necessitating a further increase in the printhead's power output. By increasing the conduction quantity, the label printer allows more resistor elements to operate simultaneously, generating greater heat per unit time. The conduction quantity formula comprehensively considers the printhead's structural characteristics and thermal capacity limitations, calculating the required conduction quantity compensation value based on the difference between the target heating energy and the current energy.

[0108] For example, suppose the printhead has 100 conduction units in standard mode, and the target heat output is 15mJ. However, if the current printing speed is too fast, the actual output energy is only 12mJ. The label printer detects insufficient energy and triggers a second-level compensation. According to the conduction time formula, each 1mJ decrease in energy requires an extension of 10μs in conduction time; simultaneously, according to the conduction unit formula, each 1mJ decrease in energy requires an increase of 5 conduction resistors. Therefore, the label printer extends the printhead's conduction time to 130μs and increases the conduction unit to 115 to compensate for the energy loss.

[0109] When the compensation level is level three, the label printer, in addition to extending the conduction time and increasing the number of conductions, will also activate the auxiliary cooling device located around the printhead and adjust the cooling power of the auxiliary cooling device according to the target heat energy. The auxiliary cooling device is an optional component of the printer, typically including a cooling fan and heat sinks, used to accelerate heat dissipation and temperature balance of the printhead. In high-energy compensation scenarios, the printhead needs to release a large amount of heat in a short time; relying solely on its own heat conduction may lead to localized overheating and decreased print quality. By controlling the cooling power of the auxiliary cooling device, the label printer achieves active heat exchange between the printhead and the environment, reducing the average temperature of the printhead and improving its operational stability. The adjustment of the cooling power is based on the difference between the target heat energy and the current energy, as well as the temperature feedback signal from the printhead.

[0110] For example, suppose the printhead's conduction time in standard mode is 100μs, the number of conductions is 100, and the target heat generation energy is 20mJ. However, the current ambient temperature is high, resulting in an actual output energy as high as 25mJ. The label printer detects excess energy and triggers the third-level compensation. Based on the conduction time and conduction quantity formulas, the label printer shortens the printhead's conduction time to 80μs and reduces the number of conductions to 90. Simultaneously, it activates the auxiliary cooling device, adjusting the cooling power to 50% based on the energy difference and temperature feedback to accelerate heat dissipation from the printhead and prevent overheating.

[0111] Reference Figure 2 This application also provides an environmentally adaptable label printing device, which is a label printer. The label printer includes: a standard data acquisition module 201, a compensation coefficient calculation module 202, an environmental compensation module 203, a compensation factor calculation module 204, a heat energy adjustment module 205, and a dynamic compensation module 206. The standard data acquisition module 201 is used to acquire the reference color development energy and reference heat loss energy of the print head under standard printing parameters. The compensation coefficient calculation module 202 is used to acquire the current ambient temperature and current printing speed, and calculate the temperature compensation coefficient based on the current ambient temperature and the speed compensation coefficient based on the current printing speed. The environmental compensation module 203… The system is used to calculate the initial heat generation energy of the print head based on the reference color development energy, reference loss energy, temperature compensation coefficient, and speed compensation coefficient; the compensation factor calculation module 204 is used to obtain the printing data corresponding to the current printing task, and determine the thermal history parameters of each heat generation point and the heating time of the neighboring heat generation points based on the printing data, and generate a proximity effect compensation factor; the heat generation energy adjustment module 205 is used to adjust the initial heat generation energy based on the thermal history parameters and the proximity effect compensation factor to obtain the target heat generation energy; the dynamic compensation module 206 is used to perform multi-level dynamic compensation on the print head according to the target heat generation energy, so that the actual output energy of the print head is the target heat generation energy.

[0112] In one possible implementation, the environmental compensation module 203 calculates the initial heat generation energy of the printhead based on the reference color development energy, reference loss energy, temperature compensation coefficient, and speed compensation coefficient using the following formula: ; Where Q represents the initial heat generation energy, J1 represents the reference color development energy, J2 represents the reference heat loss energy, and T... 常温 T represents standard room temperature. 当前 T represents the current ambient temperature. max T represents the highest ambient temperature. min V represents the lowest ambient temperature. 常温 V represents the printing speed at standard room temperature.当前 V represents the current printing speed. max V represents the maximum printing speed. min Indicates the minimum printing speed. Indicates the temperature compensation coefficient. This represents the speed compensation coefficient.

[0113] In one possible implementation, the compensation factor calculation module 204 acquires the printing data corresponding to the current printing task, and determines the thermal history parameters of each heat source and the heating time of neighboring heat sources based on the printing data, generating a proximity effect compensation factor. Specifically, this includes: the compensation factor calculation module 204 acquiring the printing task instruction sent by the host computer, and acquiring the label file to be printed according to the printing task instruction; the compensation factor calculation module 204 parsing and rasterizing the label file to obtain a bitmap-formatted printing data matrix; and the compensation factor calculation module 204 scanning the printing data matrix line by line, based on the parameters of each pixel. The grayscale value determines the preset heating time of the corresponding heating point, resulting in a heating time matrix. The compensation factor calculation module 204 calculates the cumulative heating time of each heating point in the historical printing based on the heating time matrix, obtaining the thermal history parameters of each heating point. The compensation factor calculation module 204 takes each heating point as the center of the heating point, obtains the heating time of the neighboring heating points within the preset range, and establishes a thermal coupling model based on the heating time of the neighboring heating points, the distance between the neighboring heating points and the center of the heating point, and the angle between the neighboring heating points and the center of the heating point. The compensation factor calculation module 204 generates a proximity effect compensation factor based on the thermal history parameters and the thermal coupling model.

[0114] In one possible implementation, the compensation factor calculation module 204 takes each heating point as the center of the heating point, obtains the heating time of neighboring heating points within a preset range, and establishes a thermal coupling model based on the heating time of neighboring heating points, the distance between neighboring heating points and the center of the heating point, and the angle between neighboring heating points and the center of the heating point. Specifically, the compensation factor calculation module 204 calculates the spatial weight coefficient of neighboring heating points relative to the center of the heating point based on the distance between neighboring heating points and the center of the heating point and the angle between neighboring heating points and the center of the heating point; the compensation factor calculation module 204 calculates the thermal weight coefficient of neighboring heating points based on the heating time of neighboring heating points, and the thermal weight coefficient is proportional to the heating time; the compensation factor calculation module 204 multiplies the spatial weight coefficient and the thermal weight coefficient to obtain the comprehensive weight coefficient; the compensation factor calculation module 204 establishes a polar coordinate system with the center of the heating point as the origin, and maps the comprehensive weight coefficient of each neighboring heating point to the corresponding position in the polar coordinate system to obtain the thermal coupling model of the center of the heating point.

[0115] In one possible implementation, the compensation factor calculation module 204 generates a proximity effect compensation factor based on thermal history parameters and a thermal coupling model. Specifically, the compensation factor calculation module 204 normalizes the comprehensive weight coefficients of each neighboring heating point in the thermal coupling model to obtain normalized weight coefficients; the compensation factor calculation module 204 substitutes the normalized weight coefficients into a preset heat diffusion function to obtain the heat diffusion value of each neighboring heating point; the compensation factor calculation module 204 performs a weighted summation of the heat diffusion values ​​of each neighboring heating point to obtain the proximity effect heat value of the heating point center; and the compensation factor calculation module 204 performs a weighted summation of the thermal history parameters of the heating point center and the proximity effect heat value to obtain the proximity effect compensation factor of the heating point center.

[0116] In one possible implementation, the dynamic compensation module 206 performs multi-level dynamic compensation on the print head based on the target heat energy. Specifically, the dynamic compensation module 206 determines whether the current ambient temperature or the current printing speed exceeds a preset range. If the current ambient temperature or the current printing speed exceeds the preset range, the dynamic compensation module 206 triggers a graded compensation mode. In the graded compensation mode, the dynamic compensation module 206 compares the target heat energy with preset multi-level energy thresholds and determines the compensation level corresponding to the target heat energy based on the comparison result. The compensation levels include the first level, the second level, and the third level. The dynamic compensation module 206 performs the corresponding compensation operation according to the compensation level. If the current ambient temperature and the current printing speed do not exceed the preset range, the dynamic compensation module 206 executes the normal energy compensation process, converts the target heat energy into a corresponding PWM waveform signal, and sends the PWM waveform signal to the print head to control the actual output energy of the print head.

[0117] In one possible implementation, the dynamic compensation module 206 performs corresponding compensation operations according to the compensation level, specifically including: if the compensation level is the first level, the dynamic compensation module 206 extends the conduction time of the heating resistor array in the print head according to a preset conduction time formula; if the compensation level is the second level, the dynamic compensation module 206 increases the conduction quantity of the heating resistor array in the print head according to a preset conduction quantity formula, based on extending the conduction time; if the compensation level is the third level, the dynamic compensation module 206 activates the auxiliary heat dissipation device set around the print head, based on extending the conduction time and increasing the conduction quantity, and adjusts the heat dissipation power of the auxiliary heat dissipation device according to the target heat energy.

[0118] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0119] This application also provides an electronic device. (See reference...) Figure 3 , Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device 300 may include: at least one processor 301, at least one network interface 304, a user interface 303, a memory 305, and at least one communication bus 302.

[0120] The communication bus 302 is used to enable communication between these components.

[0121] The user interface 303 may include a display screen and a camera. Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0122] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0123] The processor 301 may include one or more processing cores. The processor 301 connects to various parts of the server using various interfaces and lines, and performs various server functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in memory 305, and by calling data stored in memory 305. Optionally, the processor 301 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 301 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content required for display; and the modem handles wireless communication. It is understood that the modem may also not be integrated into the processor 301 and may be implemented as a separate chip.

[0124] The memory 305 may include random access memory (RAM) or read-only memory. Optionally, the memory 305 may include a non-transitory computer-readable storage medium. The memory 305 may be used to store instructions, programs, code, code sets, or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 305 may also be at least one storage device located remotely from the aforementioned processor 301. (Refer to...) Figure 3 The memory 305, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and an application program for an environment-adaptive label printing method.

[0125] exist Figure 3In the illustrated electronic device 300, the user interface 303 is mainly used to provide an input interface for the user and to acquire user input data; while the processor 301 can be used to call an application program stored in the memory 305 for an environment-adaptive label printing method. When executed by one or more processors 301, the electronic device 300 performs one or more of the methods described in the above embodiments. It should be noted that, for the foregoing method embodiments, for the sake of simplicity, they are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, because according to this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0126] This application also provides a computer-readable storage medium storing instructions. When executed by one or more processors 301, these instructions cause an electronic device 300 to perform one or more of the methods described in the above embodiments.

[0127] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0128] In the various embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some service interface; the indirect coupling or communication connection between apparatuses or units may be electrical or other forms.

[0129] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0130] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0131] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, portable hard drives, magnetic disks, or optical disks.

[0132] 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. Other embodiments of this disclosure will be readily apparent to those skilled in the art upon consideration of the specification and the disclosure of practical truths.

[0133] 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 to be considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. An environmentally adaptable label printing method, characterized in that, The method includes: Under standard printing parameters, obtain the reference color development energy and reference heat loss energy of the printhead; Obtain the current ambient temperature and current printing speed, and calculate the temperature compensation coefficient based on the current ambient temperature and the speed compensation coefficient based on the current printing speed; The initial heat generation energy of the printhead is calculated based on the reference color development energy, the reference loss energy, the temperature compensation coefficient, and the speed compensation coefficient. Obtain the printing data corresponding to the current printing task, and determine the thermal history parameters of each heat point and the heating time of each heat point's neighboring heat points based on the printing data, and generate a proximity effect compensation factor; Based on the thermal history parameters and the proximity effect compensation factor, the initial calorific energy is adjusted to obtain the target calorific energy; Based on the target heat energy, the printhead is subjected to multi-level dynamic compensation so that the actual output energy of the printhead is the target heat energy.

2. The method according to claim 1, characterized in that, The specific formula for calculating the initial heat generation energy of the printhead based on the reference color development energy, the reference energy loss, the temperature compensation coefficient, and the speed compensation coefficient is as follows: ； Wherein, Q represents the initial heat generation energy, J1 represents the reference color development energy, J2 represents the reference heat loss energy, and T... 常温 T represents standard room temperature. 当前 T represents the current ambient temperature. max T represents the highest ambient temperature. min V represents the lowest ambient temperature. 常温 V represents the printing speed at standard room temperature. 当前 V represents the current printing speed. max V represents the maximum printing speed. min Indicates the minimum printing speed. Indicates the temperature compensation coefficient. This represents the speed compensation coefficient.

3. The method according to claim 1, characterized in that, The process of acquiring the printing data corresponding to the current printing task, determining the thermal history parameters of each heat source and the heating time of neighboring heat sources based on the printing data, and generating a proximity effect compensation factor specifically includes: Obtain the print task instruction sent by the host computer, and obtain the label file to be printed according to the print task instruction; The label file is parsed and rasterized to obtain a bitmap-formatted print data matrix; The printed data matrix is ​​scanned line by line, and the preset heating time of the corresponding heating point is determined according to the gray value of each pixel to obtain the heating time matrix; Based on the heating time matrix, the cumulative heating time of each heating point in the historical printing is calculated to obtain the thermal history parameters of each heating point. Taking each of the heat-generating points as the center of the heat-generating point, the heating time of the neighboring heat-generating points within a preset range is obtained. Based on the heating time of the neighboring heat-generating points, the distance between the neighboring heat-generating points and the center of the heat-generating point, and the angle between the neighboring heat-generating points and the center of the heat-generating point, a thermal coupling model is established. Based on the thermal history parameters and the thermal coupling model, a proximity effect compensation factor is generated.

4. The method according to claim 3, characterized in that, The step involves taking each heat-generating point as the center of the heat-generating point, obtaining the heating time of neighboring heat-generating points within a preset range, and establishing a thermal coupling model based on the heating time of the neighboring heat-generating points, the distance between the neighboring heat-generating points and the center of the heat-generating point, and the angle between the neighboring heat-generating points and the center of the heat-generating point. Specifically, this includes: Based on the distance between the neighboring heating point and the center of the heating point, and the angle between the neighboring heating point and the center of the heating point, calculate the spatial weight coefficient of the neighboring heating point relative to the center of the heating point; Based on the heating time of the adjacent heating points, a heat weighting coefficient for the adjacent heating points is calculated, and the heat weighting coefficient is proportional to the heating time. Multiply the spatial weighting coefficient by the thermal weighting coefficient to obtain the comprehensive weighting coefficient; A polar coordinate system is established with the center of the heating point as the origin. The comprehensive weight coefficients of each of the neighboring heating points are mapped to the corresponding positions in the polar coordinate system to obtain the thermal coupling model of the center of the heating point.

5. The method according to claim 3, characterized in that, The generation of the proximity effect compensation factor based on the thermal history parameters and the thermal coupling model specifically includes: The comprehensive weight coefficients of each of the adjacent heating points in the thermal coupling model are normalized to obtain normalized weight coefficients. Substitute the normalized weighting coefficients into the preset heat diffusion function to obtain the heat diffusion values ​​of each of the adjacent heat sources; The heat diffusion values ​​of each of the adjacent heat points are weighted and summed to obtain the proximity effect heat value of the center of the heat point. The heat history parameters of the heat source center are weighted and summed with the heat value of the proximity effect to obtain the proximity effect compensation factor of the heat source center.

6. The method according to claim 1, characterized in that, The step of performing multi-level dynamic compensation on the print head based on the target heat energy specifically includes: Determine whether the current ambient temperature or the current printing speed exceeds a preset range; If the current ambient temperature or the current printing speed exceeds the preset range, a graded compensation mode is triggered. In the graded compensation mode, the target heat energy is compared with preset multi-level energy thresholds, and the compensation level corresponding to the target heat energy is determined according to the comparison result. The compensation level includes a first level, a second level, and a third level. Perform the corresponding compensation operation based on the compensation level; If the current ambient temperature and the current printing speed do not exceed the preset range, the normal energy compensation process is executed, the target heat energy is converted into a corresponding PWM waveform signal, and the PWM waveform signal is sent to the print head to control the actual output energy of the print head.

7. The method according to claim 6, characterized in that, The step of performing the corresponding compensation operation according to the compensation level specifically includes: If the compensation level is the first level, the conduction time of the heating resistor array in the print head is extended according to the preset conduction time formula; If the compensation level is the second level, then based on extending the conduction time, the conduction quantity of the heating resistor array in the print head is increased according to the preset conduction quantity formula. If the compensation level is level three, then, based on extending the conduction time and increasing the number of conductions, the auxiliary heat dissipation device located around the printhead is activated, and the heat dissipation power of the auxiliary heat dissipation device is adjusted according to the target heat energy.

8. An environmentally adaptable label printing device, characterized in that, The device includes a standard data acquisition module (201), a compensation coefficient calculation module (202), an environmental compensation module (203), a compensation factor calculation module (204), a heat energy adjustment module (205), and a dynamic compensation module (206), wherein: The standard data acquisition module (201) is used to acquire the reference color rendering energy and reference heat loss energy of the print head under standard printing parameters; The compensation coefficient calculation module (202) is used to obtain the current ambient temperature and the current printing speed, and calculate the temperature compensation coefficient based on the current ambient temperature and the speed compensation coefficient based on the current printing speed. The environmental compensation module (203) is used to calculate the initial heat generation energy of the print head based on the reference color development energy, the reference loss energy, the temperature compensation coefficient, and the speed compensation coefficient. The compensation factor calculation module (204) is used to obtain the printing data corresponding to the current printing task, and determine the thermal history parameters of each heat point and the heating time of the neighboring heat points of each heat point based on the printing data, and generate a proximity effect compensation factor. The heat energy adjustment module (205) is used to adjust the initial heat energy based on the heat history parameters and the proximity effect compensation factor to obtain the target heat energy; The dynamic compensation module (206) is used to perform multi-level dynamic compensation on the print head according to the target heat energy, so that the actual output energy of the print head is the target heat energy.

9. An electronic device, characterized in that, The device includes a processor (301), a memory (305), a user interface (303), and a network interface (304). The memory (305) is used to store instructions. The user interface (303) and the network interface (304) are used to communicate with other devices. The processor (301) is used to execute the instructions stored in the memory (305) to cause the electronic device (300) to perform the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores instructions that, when executed, perform the method as described in any one of claims 1-7.

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