Rapid identification method and device based on OLED screen exposure ray negative film

Abstract

The invention discloses a rapid identification method and device based on an OLED screen exposure radiograph, and the method comprises the steps: loading a preset rule and a database through system initialization, inputting workpiece plate thickness and material parameters, customizing identification configuration, automatically generating a continuous number and a two-dimensional code through an intelligent control module, and matching exposure parameters based on workpiece parameters. And the OLED screen is used for exposing the film and automatically switching numbers, and is matched with a physical stop button to realize safety control. The device comprises an OLED display module, an intelligent control module, a parameter input module, a light source driving module, a storage module, a structure module and a safety control unit. The OLED screen is adopted to replace a traditional paper tape, the two-dimensional code is integrated to improve the information density, intelligent matching of exposure parameters and automatic generation of numbers are achieved, the identification efficiency and the tracing efficiency are remarkably improved, the operation intensity and the error rate are reduced, and different specifications of negative films and detection requirements are met.

Description

Technical Field

[0001] This invention relates to the field of industrial radiographic inspection technology, specifically to a rapid marking method and apparatus for radiographic films exposed on OLED screens. Background Technology

[0002] In industrial radiographic testing, radiographic film labeling is a crucial step in ensuring the traceability of test results. The core requirement is to record relevant test information through clear and accurate labeling for subsequent traceability and verification.

[0003] Currently, existing X-ray film marking technologies are mainly divided into two categories: one is the traditional lead type marking method, which requires manual arrangement of lead type and fixing of its position, resulting in problems such as long production time, high error rate, and cumbersome operation; the other is the improved printed paper tape marking method, which uses computer-printed black paper tape with white text to paste onto the exposure box for film exposure. Although this reduces manual operation to some extent, it still has many shortcomings.

[0004] First, it relies heavily on manual operation and has high consumable costs. The paper tape labeling method requires a complete manual process of printing, cutting, and pasting. When changing labels, the operation needs to be repeated, which increases the preparation time of a single label by about 30% and consumes a lot of paper tape. At the same time, the pasting of paper tape is prone to wrinkles, edge lifting, or positional misalignment, resulting in about 5% of the film having blurry or deformed labels.

[0005] Secondly, the information carrier is singular and has low information density, supporting only simple combinations of numbers or letters. A single identifier can contain a maximum of 30 characters, with an information density of approximately 0.3 characters / mm. 2 It cannot integrate high-density data carriers such as QR codes, and manual entry of numbers is required for traceability, which also poses a risk of entry errors.

[0006] Furthermore, exposure parameter settings rely on manual experience. White light illuminance (300-800 lux) and exposure time must be manually set by the operator. The parameter settings for the same workpiece can vary by ±20% between different operators, resulting in overexposure or underexposure in approximately 25% of the films. In addition, there is a lack of automated numbering functionality, requiring manual creation and input of numbers. During continuous inspection, manual replacement is necessary, which can easily lead to duplicate or skipped numbers. Summary of the Invention

[0007] In view of this, the present invention aims to provide a rapid marking method and apparatus for X-ray film exposed by OLED screen, in order to solve the technical problems of high dependence on manual operation, high material cost, low information density, poor accuracy of exposure parameters, insufficient automation of numbering and lack of operational safety in the prior art, and to achieve high efficiency, digitalization, intelligence and high safety of X-ray film marking. To solve the above problems, the present invention adopts the following technical solution: The first objective of this invention is to provide a rapid marking method for X-ray films exposed on OLED screens, comprising the following steps: S1: System initialization, loading preset encoding rules, exposure parameter database and default identifier configuration; S2: Input the plate thickness and material parameters of the workpiece to be inspected through the parameter input module, and customize the size and position of the number and QR code; S3: The intelligent control module automatically generates consecutive numbers based on preset coding rules, and the OLED screen displays the numbers and QR codes in white text on a black background; S4: The intelligent control module matches the corresponding white light illuminance and exposure time from the exposure parameter database based on the workpiece's thickness and material parameters; S5: Place the film in the exposure position, and the OLED screen will expose according to the matching illuminance and time. After the exposure is completed, it will automatically switch to the next number. S6: Exposure can be stopped and number switching stopped in an emergency via a physical stop button.

[0008] Furthermore, in step S1, the preset coding rule includes a combination field of project number, workpiece number, and inspection sequence number; the exposure parameter database includes illuminance-time matching relationships for more than 100 common materials and plate thicknesses from 1 to 100 mm; the default identifier configuration is as follows: the number size is 10 mm × 5 mm and located in the lower right corner of the film, and the QR code size is 15 mm × 15 mm and located in the lower left corner of the film.

[0009] Furthermore, in step S2, the size of the number and the QR code is adjustable from 5 to 20 mm, and the position of the number and the QR code is suitable for setting via X-axis and Y-axis coordinate parameters.

[0010] Furthermore, in step S3, the QR code includes a serial number, workpiece parameters, and detection time information, with an information density ≥ 2 characters / mm. 2 .

[0011] Furthermore, in step S4, the white light illuminance adjustment range is 200-1000 lux, with an adjustment accuracy of ±10 lux; the exposure time adjustment range is 1-10 seconds, with an adjustment accuracy of ±0.1 seconds.

[0012] Furthermore, in step S6, the physical stop button is set to a red button with a pressing stroke of ≥2mm and a response time of ≤0.1 seconds. In an emergency, the exposure can be terminated within 0.5 seconds.

[0013] A second objective of this invention is to provide a rapid marking device for X-ray films exposed to OLED screens, employing the aforementioned rapid marking method for X-ray films exposed to OLED screens. The device includes: OLED display module, used to display numbers and QR codes with white text on a black background; The intelligent control module is used to automatically generate numbers and match exposure parameters; The parameter input module is used to input workpiece parameters and custom identifier configurations; The light source driving module is used to receive illuminance control signals and adjust the white light illuminance and exposure time of the OLED screen; The storage module is used to store encoding rules, exposure parameter database, historical number records, and user-defined configurations; The structural module includes a sealed outer shell, a working panel, a film limiting baffle and an adjustment knob, and an OLED screen is embedded in the working panel with a flush surface; The safety control unit includes a physical stop button for stopping exposure and halting the process; The intelligent control module is electrically connected to the OLED display module, the parameter input module, the light source driving module, the storage module, the structural module, and the safety control unit, respectively.

[0014] Furthermore, the OLED display module uses a 0.96-inch monochrome OLED screen with a resolution of 128×64 pixels, a contrast ratio of ≥10000:1, an illuminance deviation of ≤5% for white text, a scratch-resistant transparent protective layer on the surface, and a service life of ≥5000 hours.

[0015] Furthermore, the intelligent control module uses an STM32F103 microcontroller, integrating a number generation unit, a parameter matching unit, and a display control unit; the storage module uses a 16MB Flash memory, which can store up to 1000 detection records.

[0016] Furthermore, the parameter input module includes a touch screen and a physical button group, the physical button group including "Start", "Parameter Confirmation" and "Stop" buttons; the film limiting baffle is connected to the built-in gear, rack and slide rail through the adjustment knob to realize the quick positioning of the film.

[0017] Compared with the prior art, the present invention has significant advantages and beneficial effects, specifically reflected in the following aspects: This invention replaces traditional paper tape with an OLED screen, eliminating the steps of printing, cutting, and pasting. This reduces manual operation time for single-batch testing and shortens the preparation time for single-piece labels, eliminating paper tape consumable costs. By integrating QR code labels, scanning and traceability time is shortened, improving traceability efficiency and reducing error rates. Exposure parameters are automatically matched based on plate thickness and material, achieving 100% accuracy, reducing overexposure / underexposure rates, and improving label clarity. Automatic generation of consecutive numbers reduces duplicate / skipped number errors. A physical stop button ensures rapid termination of exposure in emergencies, reducing film scrap rates. It supports customization of numbering and QR code size and position to adapt to different film specifications and testing standard requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rapid marking method for X-ray film exposed by an OLED screen in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structural framework of the rapid marking device based on OLED screen exposure film in an embodiment of the present invention; Figure 3 This is a schematic diagram of the specific structure of the structural module in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100-Rapid Identification Device; 10-OLED display module; 20-Intelligent control module; 30-Parameter input module; 31-Touch screen; 32-Physical button group; 40-Light source driving module; 50-Storage module; 60-Structural module; 61-Sealed housing; 62-Work panel; 63-Film limiting baffle; 64-Adjustment knob. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1 As shown, this embodiment of the invention provides a rapid marking method for X-ray films exposed to OLED screens. The rapid marking method includes the following steps: S1: System initialization, loading preset encoding rules, exposure parameter database and default identifier configuration.

[0022] In this step, system initialization is the prerequisite for the entire labeling process. By pre-setting coding rules, the standardization and uniformity of number generation can be guaranteed, avoiding confusion in numbers generated by different batches and different operators. The exposure parameter database provides data support for subsequent matching and adaptation parameters, reducing errors from manual parameter debugging. The default label configuration can handle common scenarios that do not require custom settings, improving the efficiency of basic operations. The three together constitute the basic conditions for labeling work.

[0023] S2: Input the plate thickness and material parameters of the workpiece to be inspected through the parameter input module, and customize the size and position of the number and QR code.

[0024] In this step, the core parameters such as workpiece thickness and material are input because different specifications of workpieces have different radiographic imaging requirements, and subsequent exposure parameters need to be adjusted accordingly. Allowing custom numbering and QR code size and position can not only meet the needs of identification display in different scenarios, but also avoid the overlap of identification with the workpiece inspection area on the radiograph, which complies with the specification that radiographic identification should not interfere with the effective evaluation range.

[0025] S3: The intelligent control module automatically generates consecutive numbers based on preset coding rules, and the OLED screen displays the numbers and QR codes in white text on a black background.

[0026] In this step, the intelligent control module automatically generates consecutive numbers according to the coding rules, solving the problems of error-prone and inefficient traditional manual numbering. Meanwhile, the OLED screen uses a black background with white text, and combined with the self-emissive and high-contrast characteristics of OLED, it creates a clear visual contrast between the number and the QR code, ensuring accurate light sensitivity of the film during subsequent exposure and guaranteeing clear and legible label imaging.

[0027] S4: The intelligent control module matches the corresponding white light illuminance and exposure time from the exposure parameter database based on the workpiece's thickness and material parameters.

[0028] This step is a crucial logical node for ensuring exposure quality. The thickness and material of the workpiece directly affect the film's light sensitivity. For example, thicker workpieces may require stronger illumination and longer exposure times to form clear markings, while thinner workpieces need to avoid overexposure, which could lead to blurred markings. By matching parameters through a database, the method of manually setting parameters based on experience is replaced, achieving standardized adaptation of exposure parameters and reducing the impact of human factors on marking quality.

[0029] S5: Place the film in the exposure position, and the OLED screen will expose according to the matching illuminance and time. After the exposure is completed, it will automatically switch to the next number.

[0030] Once the film is in place, exposure according to the matching parameters ensures stable marking results; the numbering is automatically switched after exposure, eliminating the need for manual adjustment, making batch marking possible, especially suitable for large-scale workpiece inspection scenarios.

[0031] S6: Exposure can be stopped and number switching stopped in an emergency via a physical stop button.

[0032] In this step, during the exposure process, unexpected situations may occur such as incorrect film placement or equipment failure. Compared with software stop commands, physical buttons respond more quickly and are more reliable, which can promptly terminate abnormal exposures and numbering changes, avoid material waste and equipment damage, and form a safe closed loop in the process.

[0033] Compared to traditional lead type marking and electronic marking methods that rely on computer printers, this method offers significant improvements in efficiency, quality, and security. For example, in terms of number generation, automatic continuous number generation replaces the traditional method of manually arranging lead type one by one, avoiding the tedious operation of manually arranging 20-40 different types of markings and reducing issues such as incorrect or missing numbers. In terms of workflow, the numbering automatically switches after exposure, allowing for the next marking cycle without manual intervention, significantly shortening the interval between batch markings. In terms of parameter matching, the database automatically matches exposure parameters, eliminating the need for repeated manual adjustments to illuminance and exposure time, resulting in a more significant efficiency improvement, especially when processing similar workpieces in batches.

[0034] More specifically, in step S1, the preset coding rule includes a combination field of project number, workpiece number, and inspection sequence number; the exposure parameter database includes illuminance-time matching relationships for more than 100 common materials and plate thicknesses from 1 to 100 mm; the default identifier is configured as a number size of 10 mm × 5 mm, located in the lower right corner of the film; and the QR code size is 15 mm × 15 mm, located in the lower left corner of the film.

[0035] Specifically, the project number is used to identify the project / order to which the inspection belongs, the workpiece number is used to locate the specific inspection object, and the inspection sequence number is used to distinguish different inspection locations / batches of the same workpiece. These three elements form a unique identifier chain. Logically, this coding rule avoids the problem of incomplete information in traditional coding systems that leads to difficulties in traceability. It ensures that the identification of each radiograph is accurately linked to the specific project, workpiece, and inspection node, providing a standardized data foundation for subsequent archiving, review, and quality traceability, without the need for manual additional annotation and supplementary information.

[0036] The exposure parameter database stores a large number of common materials, covering mainstream industrial fields such as machinery, piping, and construction. Considering that thicker plates require stronger illumination and longer exposure times to ensure clear imaging of markings, while thinner plates need to avoid overexposure that could blur the markings, the required illumination or exposure time for the film needs to be adjusted accordingly for every 1mm increase in plate thickness. In addition, different materials have different photosensitive adaptability. The database stores the verified "material-plate thickness-illuminance-time" mapping relationship in advance, which can realize intelligent matching without relying on human experience. It can directly call the corresponding parameters, which avoids the trial and error cost of parameter adjustment and ensures the consistency of the label exposure under different working conditions.

[0037] In this embodiment, the default identifier size is set to 10mm × 5mm. The size of the identifier ensures the recognizability on the film (too small and the image will be blurry, too large and it will take up too much space); the QR code size is set to 15mm × 15mm. The QR code size meets the minimum size requirement for scanning and recognition (the QR code needs to be large enough to ensure information storage and scanning success rate). In terms of location settings, the lower right corner (number) and the lower left corner (QR code) are non-core inspection areas of the radiographic film (the effective evaluation range of radiographic inspection is usually concentrated in the middle of the film), avoiding overlap between the markings and the workpiece defect image, which meets the standard requirements of industrial radiographic inspection; at the same time, the fixed default position reduces the decision-making cost of operators, and no custom adjustment is required in normal scenarios. The existing position can be used directly to meet the needs, improving the efficiency of basic operations.

[0038] To meet the actual needs of industrial radiographic inspection, the pre-defined coding rules allow for the automatic generation of numbers, eliminating the need for manual numbering (as with traditional lead letter marking, which requires manually combining project number, workpiece number, and serial number). It also eliminates the need for subsequent supplementary labeling information. During batch inspection, it can achieve automated workflow of continuous generation, continuous exposure, and continuous switching. This reduces the labeling time for 100 workpieces stored in the system from the traditional 30-60 minutes to 5-10 minutes (only the plate thickness and material need to be entered once, and subsequent processes are automatic).

[0039] The database covers most common working conditions in the industrial field. Operators do not need to rely on experience to adjust the illuminance and time (traditional methods may require 2-3 test exposures to determine the parameters). After inputting the parameters, they can be directly matched and used. This saves on the film consumables for test exposures (each X-ray film costs about 5-20 yuan) and greatly shortens the preparation time for a single batch of testing.

[0040] The default identifier configuration is compatible with more than 80% of common testing scenarios. Operators only need to input the plate thickness and material to start the process, without having to adjust the size and position of the number / QR code, thus lowering the operating threshold.

[0041] The database ensures clear imaging of workpiece markings of varying thicknesses and materials through precise parameter matching and high-contrast OLED black-on-white text display. For example, markings on thick plates (such as 100mm steel) will not be blurred due to insufficient illumination, while markings on thin plates (such as 1mm aluminum alloy) will not be blurred due to overexposure. At the same time, fixed default sizes avoid recognition difficulties caused by improper sizes, and the QR code scanning success rate is ≥99%.

[0042] Therefore, the coding rules of the combined fields give each film a unique index of "project-workpiece-inspection number". During subsequent archiving, it can be directly classified by code. When searching, the corresponding film can be quickly located by entering the code. This solves the traceability difficulties caused by incomplete coding information and chaotic numbering in traditional methods, and is especially suitable for the requirements of industrial product quality traceability.

[0043] More specifically, in step S2, the size of the number and QR code is adjustable from 5 to 20 mm. Based on the conventional sizes of X-ray films (such as 100×150 mm, 150×200 mm, and other commonly used industrial specifications), the minimum size of 5 mm meets the minimum identifiability requirement of the marking (number / QR code) while ensuring that the marking is identifiable and does not interfere with the detection area. For example, when the size of the number is 5 mm × (2.5-5) mm, the character strokes are clear and can still be recognized by the naked eye after the film is imaged. When the QR code is 5 mm × 5 mm, with the high contrast display of OLED and accurate exposure parameters, mainstream scanning devices can still recognize it stably (avoiding information loss or recognition failure due to the small size). The maximum size of 20 mm is used to adapt to the marking needs of large-size X-ray films (such as 300×400 mm), while avoiding the size being too large and occupying too much space (20 mm only occupies 5%-6% of the side length of the film), ensuring that the core detection area is not squeezed.

[0044] It provides precise adaptation for different film sizes (e.g., small film size 100×150mm requires 5-8mm markings, while large film size 300×400mm can use 15-20mm markings) and different detection accuracy requirements (e.g., high-precision detection requires smaller markings to avoid interference, while regular detection can use larger markings to improve recognition convenience), solving extreme scenarios that cannot be covered by the default configuration (10mm×5mm number, 15mm×15mm QR code).

[0045] More specifically, in step S2, the positions of the number and QR code are set using X-axis and Y-axis coordinate parameters. The core detection area of ​​the radiograph may vary depending on the shape of the workpiece and the detection angle (e.g., the detection area of ​​an irregularly shaped workpiece may be biased towards the lower left corner, causing the QR code in the lower left corner to overlap with the defect image by default). The X / Y axis coordinates can be accurate to the 1mm level. Operators can directly input the coordinates according to the specific range of the detection area on the radiograph to place the mark in any blank area. Understandably, the default position (bottom right / bottom left, corresponding to fixed coordinates) is used in normal scenarios, while the coordinates are fine-tuned in special scenarios to avoid the overlap of the marker with the detection area and the edge of the film (to avoid incomplete exposure), and to avoid the marker affecting the defect assessment. The coordinates can be set by inputting through the touch screen or by preset commonly used coordinate library, which ensures accuracy without increasing the complexity of operation.

[0046] Therefore, for inspection scenarios involving irregularly shaped workpieces (such as pipes, valves, and complex structural components), X / Y axis coordinate settings can achieve seamless avoidance of markings. Regardless of the location of the inspection area on the film, the markings can be placed in blank areas by adjusting the coordinates, avoiding overlap between the markings and defect images.

[0047] More specifically, in step S3, the QR code includes a serial number, workpiece parameters, and detection time information, with an information density of ≥2 characters / mm. 2 .

[0048] Specifically, the serial number serves as the core index of the QR code, ensuring a one-to-one correspondence between the QR code information and the visual serial number. This enables dual verification through visual identification of the serial number and scanning to read all the information. The workpiece parameter information is directly linked to the plate thickness and material parameters input in step S2, making the QR code a digital carrier for workpiece inspection. Core workpiece attributes can be obtained by scanning the code without additional querying of inspection records, solving the problem that traditional labels can only identify serial numbers and cannot directly link to workpiece information. The inspection time information is used to automatically record the exposure time, forming an inspection timestamp. This provides a time dimension basis for quality traceability. For example, when defects are subsequently discovered, workpieces from the same batch and within the same time period can be quickly located to analyze the causes of the defects.

[0049] Therefore, by combining the number, workpiece parameters, and inspection time information, the QR code is upgraded from a simple number storage tool to a full-dimensional information card containing "identity identifier - workpiece attributes - inspection sequence," comprehensively covering the core elements of quality traceability. Traditional methods require searching paper / electronic ledgers by number to obtain information such as workpiece parameters and inspection time, while this solution can instantly read all-dimensional information by scanning the code, shortening the traceability time to within 1 second, which is especially suitable for quality review scenarios involving large-scale, multi-batch workpieces.

[0050] More specifically, in step S4, the white light illuminance adjustment range is 200-1000 lux, with an adjustment accuracy of ±10 lux; the exposure time adjustment range is 1-10 seconds, with an adjustment accuracy of ±0.1 seconds.

[0051] Considering that the photosensitive range of mainstream X-ray films (such as T2 and T3 types) is 200-1000 lux, for example, thin aluminum alloy plates (1-10mm) have low photosensitive materials and require a lower illuminance of 200-400 lux to avoid overexposure and blurring of the marking edges; thick plates (50-100mm) have high photosensitive materials (such as carbon steel and alloy steel) and require a higher illuminance (600-1000 lux) to ensure clear photosensitive marking characters / QR code dot matrix; the intermediate range (10-50mm plate thickness) can achieve precise adaptation through gradient illuminance (400-600 lux), solving the problem that traditional fixed illuminance cannot cover all working conditions.

[0052] In terms of adjustment accuracy, ±10 lux is equivalent to the fine-tuning level control of illuminance adjustment. Under the same material, for every 5 mm increase in plate thickness, the illuminance needs to be increased by about 50 lux to ensure consistent photosensitive effect. If the accuracy is insufficient (such as ±50 lux), it may cause blurry markings on thick plates and overexposure on thin plates. It fully meets the stability requirements of film photosensitive effect and avoids fluctuations in marking quality caused by illuminance deviation.

[0053] More specifically, in step S6, the physical stop button is a red mushroom-shaped button with a pressing stroke of ≥2mm and a response time of ≤0.1 seconds. In an emergency, exposure can be terminated within 0.5 seconds, allowing for quick positioning and immediate operation in sudden situations.

[0054] Please see Figure 2 As shown, another embodiment of the present invention also provides a rapid marking device for exposing X-ray films using an OLED screen. The rapid marking device 100 includes an OLED display module 10, an intelligent control module 20, a parameter input module 30, a light source driving module 40, a storage module 50, and a structural module 60, wherein: The OLED display module 10 receives display signals from the intelligent control module 20, outputting numbers and QR codes in a black background with white text (high contrast ensures clear film exposure). The screen is embedded in the working panel 62 and flush with its surface to avoid scratches caused by friction with the film, while ensuring uniform distance between the screen and film during exposure and precise marking positions. The intelligent control module 20, as the core of the device, connects and controls all modules, automatically generating numbers, matching exposure parameters, and controlling the collaborative operation of each module. The parameter input module 30 serves as the user interface, supporting workpiece parameter (thickness, material) input and custom label configurations (number / QR code pair size 5-20mm, X / Y axis coordinate position). Input information is synchronized in real-time to the intelligent control module 20 and the storage module 50 (stored as user-defined configurations), enabling multiple modules to reuse a single input. The light source drive module 40 receives precise control signals from the intelligent control module 20, adjusting the white light illuminance and exposure time of the OLED screen to ensure strict matching of exposure parameters with the database configuration. Its drive response speed coordinates with the intelligent control module 20, achieving 0.5... Exposure can be terminated within seconds (in conjunction with the safety control unit 70); the storage module 50 is used to pre-store coding rules, a database of exposure parameters for at least 100 materials, and default identification configurations (numbers 10mm×5mm, QR codes 15mm×15mm), while also storing historical number records in real time (to avoid duplicate numbering) and user-defined configurations (which can be directly recalled for the next use), providing a data basis for the decision-making of the intelligent control module 20 and ensuring process continuity and traceability.

[0055] The structural module 60 serves as the physical carrier of the device, and mainly consists of a sealed outer shell 61, a working panel 62, a film limiting baffle 63, and an adjustment knob 64, wherein: The sealed housing 61 is used to prevent dust and light interference, avoiding external light from affecting the film's photosensitive effect and ensuring the contrast of the marking image; the working panel 62 is flush with the sealed housing 61 to provide a flat operating platform for easy film positioning; the film limiting baffle 63 is used to precisely limit the film position, ensuring that the marking exposure area is consistent with the preset X / Y axis coordinates and avoiding positional deviation; the adjustment knob 64 is used to fine-tune the height or angle of the working panel 62 to adapt to different film sizes (such as 80×100mm, 300×400mm) and enhance scene adaptability.

[0056] The structural module 60 includes a sealed housing 61, a working panel 62, a film limiting baffle 63, and an adjustment knob 64. The OLED screen is embedded in the working panel 62 and its surface is flush with the panel. The safety control unit 70 includes a physical stop button 71 for stopping exposure and halting the process.

[0057] Compared to traditional decentralized marking equipment (such as lead type + independent exposure lamp + manual timing), the OLED display module 10 in this embodiment uses a 0.96-inch monochrome OLED screen with a resolution of 128×64 pixels, a contrast ratio of ≥10000:1, an illuminance deviation of ≤5% for white text, a scratch-resistant transparent protective layer, and a service life of ≥5000 hours. While improving efficiency, each module also further enhances the marking pass rate, completely solving the problems of low efficiency, poor quality, weak adaptability, and safety issues associated with traditional X-ray film marking. It is particularly suitable for large-scale batch testing and industrial scenarios with high compliance requirements, making it a mature technical solution that combines practicality, reliability, and economy.

[0058] Please see Figure 2 As shown, in another embodiment of the present invention, the intelligent control module 20 adopts an STM32F103 microcontroller, and the intelligent control module 20 also integrates a number generation unit, a parameter matching unit and a display control unit; the storage module 50 adopts a 16MB Flash memory, which can store up to 1000 detection records.

[0059] Specifically, the STM32F103, as a mainstream industrial-grade microcontroller, has performance parameters that are highly matched with the functional requirements of the device. The three integrated units further refine the central decision-making process, ensuring the efficiency and stability of the technical process.

[0060] Leveraging the computing power of the STM32F103, the system automatically generates consecutive numbers according to a preset encoding rule (project number + workpiece number + inspection sequence number). Simultaneously, it uses a timestamp function to record the inspection time. These numbers are combined with workpiece parameters (plate thickness, material) input from the parameter input module 30 to generate a high-density QR code (information density ≥ 2 characters / mm²) using a QR code encoding algorithm. This unit boasts strong hardware adaptability—the STM32F103's Flash memory can pre-store the QR code encoding library, eliminating the need for external computing power. Encoding time is ≤ 50ms, ensuring seamless integration with the exposure process.

[0061] Please see Figure 3 As shown, in another embodiment of the present invention, the parameter input module 30 includes a touch screen 31 and a physical button group 32. The physical button group 32 includes "start", "parameter confirmation" and "stop" buttons. The film limiting baffle 63 is connected to the built-in gear, rack and slide rail through the adjustment knob 64 to realize the rapid positioning of the film.

[0062] Specifically, the "Parameter Confirmation" button is used to lock the parameters or custom configurations input on the touchscreen 31, triggering the intelligent control module 20 to generate a number and match parameters. Compared to pure touchscreen confirmation, the physical button provides clearer feedback, avoiding repeated operations due to accidental touches or lack of feedback on the touchscreen. The "Start" button is used to trigger exposure execution, which only takes effect after parameter confirmation to prevent exposure from starting without configured parameters. The "Stop" button serves as a regular process stop button for terminating exposure or pausing the process in normal scenarios (such as when film placement deviation is found but it does not constitute an emergency). After pressing, the system saves the current configuration and can continue execution after restarting, improving process flexibility. The adjustment knob 64 is fixedly connected to the built-in gear. When the knob is rotated, the gear drives the rack to move horizontally. The rack is rigidly connected to the film limiting baffle 63, and the slide rail restricts the movement direction of the baffle, ensuring that after the baffle is positioned, the target area of ​​the film is precisely aligned with the display area of ​​the OLED screen and then locked.

[0063] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this invention.

Claims

1. A rapid marking method for X-ray films exposed on an OLED screen, characterized in that, Includes the following steps: S1: System initialization, loading preset encoding rules, exposure parameter database and default identifier configuration; S2: Input the plate thickness and material parameters of the workpiece to be inspected through the parameter input module, and customize the size and position of the number and QR code; S3: The intelligent control module automatically generates consecutive numbers based on preset coding rules, and the OLED screen displays the numbers and QR codes in white text on a black background; S4: The intelligent control module matches the corresponding white light illuminance and exposure time from the exposure parameter database based on the workpiece's thickness and material parameters; S5: Place the film in the exposure position, and the OLED screen will expose according to the matching illuminance and time. After the exposure is completed, it will automatically switch to the next number. S6: Exposure can be stopped and number switching stopped in an emergency via a physical stop button.

2. The rapid marking method for X-ray film exposed by an OLED screen according to claim 1, characterized in that, In step S1, the preset coding rule includes a combination field of project number, workpiece number, and inspection sequence number; the exposure parameter database includes illuminance-time matching relationships for more than 100 common materials and plate thicknesses of 1-100mm; the default identifier configuration is as follows: the number size is 10mm×5mm and located in the lower right corner of the film, and the QR code size is 15mm×15mm and located in the lower left corner of the film.

3. The rapid marking method for X-ray films exposed on an OLED screen according to claim 1, characterized in that, In step S2, the size of the number and QR code is adjustable from 5 to 20 mm, and the position of the number and QR code is suitable for setting by X-axis and Y-axis coordinate parameters.

4. The rapid marking method for X-ray films exposed on an OLED screen according to claim 1, characterized in that, In step S3, the QR code contains a serial number, workpiece parameters, and detection time information, with an information density of ≥2 characters / mm. 2 .

5. The rapid marking method for X-ray film exposed by an OLED screen according to claim 1, characterized in that, In step S4, the white light illuminance adjustment range is 200-1000 lux, with an adjustment accuracy of ±10 lux; the exposure time adjustment range is 1-10 seconds, with an adjustment accuracy of ±0.1 seconds.

6. The rapid marking method for X-ray films exposed on an OLED screen according to claim 1, characterized in that, In step S6, the physical stop button is set to a red button with a pressing stroke of ≥2mm and a response time of ≤0.1 seconds. In an emergency, the exposure can be terminated within 0.5 seconds.

7. A rapid marking device based on OLED screen exposure of X-ray film, characterized in that, The apparatus employing the rapid marking method for X-ray films exposed on OLED screens according to any one of claims 1-6 comprises: OLED display module, used to display numbers and QR codes with white text on a black background; The intelligent control module is used to automatically generate numbers and match exposure parameters; The parameter input module is used to input workpiece parameters and custom identifier configurations; The light source driving module is used to receive illuminance control signals and adjust the white light illuminance and exposure time of the OLED screen; The storage module is used to store encoding rules, exposure parameter database, historical number records, and user-defined configurations; The structural module includes a sealed outer shell, a working panel, a film limiting baffle and an adjustment knob, and an OLED screen is embedded in the working panel with a flush surface; The safety control unit includes a physical stop button for stopping exposure and halting the process; The intelligent control module is electrically connected to the OLED display module, the parameter input module, the light source driving module, the storage module, the structural module, and the safety control unit, respectively.

8. The rapid marking device for exposing X-ray films based on an OLED screen according to claim 7, characterized in that, The OLED display module uses a 0.96-inch monochrome OLED screen with a resolution of 128×64 pixels, a contrast ratio of ≥10000:1, an illuminance deviation of ≤5% for white text, a scratch-resistant transparent protective layer on the surface, and a service life of ≥5000 hours.

9. The rapid marking device for exposing X-ray films based on an OLED screen according to claim 7, characterized in that, The intelligent control module uses an STM32F103 microcontroller and integrates a number generation unit, a parameter matching unit, and a display control unit; the storage module uses a 16MB Flash memory and can store up to 1000 detection records.

10. The rapid marking device for exposing X-ray films based on an OLED screen according to claim 7, characterized in that, The parameter input module includes a touch screen and a physical button group, which includes "Start", "Parameter Confirmation", and "Stop" buttons. The film limiting baffle is connected to the built-in gear, rack, and slide rail via an adjustment knob to enable the film to be quickly positioned.

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