Dual-path optical density detection method for film printers and related apparatus

Abstract

The application provides a double-path optical density detection method of a film printer and related equipment, and the method comprises the following steps: controlling a test medium to pass through a first optical detection system through a transmission system to obtain first optical density data; controlling the test medium to pass through a second optical detection system through the transmission system to obtain second optical density data; obtaining a self-verification result according to the first optical density data and the second optical density data; and in the case that the self-verification result represents that the first optical detection system and the second optical detection system are both in an unobstructed state, controlling the first optical detection system and the second optical detection system to obtain target optical density data of a target medium, wherein the first optical detection system and the second optical detection system can ensure the accuracy and reliability of detection through the self-verification result, realize a self-correction function before starting detection, and thus the printing quality problem caused by false optical density data is avoided.

Description

Technical Field

[0001] This invention relates to the field of film printer technology, and in particular to a dual-channel optical density detection method and related equipment for film printers. Background Technology

[0002] In the field of traditional film printer technology, optical density detection is one of the key steps to ensure print quality. The accuracy of optical density detection is directly related to the final display effect of film images, especially in terms of color saturation, contrast, and detail. Typically, film printers use a single-channel optical density detection system to perform this task. By detecting the absorption or transmittance of different color spectra, the density and distribution of ink are determined, and the printing parameters are adjusted accordingly to achieve the ideal printing effect.

[0003] However, in single-channel optical density detection methods, the reliability of the detection results will be greatly reduced when the single detection system is blocked or its performance degrades, which will affect the output quality of the printer. Since there is no real-time inspection mechanism, such problems usually require manual intervention for diagnosis and calibration, which not only increases maintenance costs but also affects the continuity of printing jobs. Summary of the Invention

[0004] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0005] This invention provides a dual-channel optical density detection method for a film printer, a film printer, electronic equipment, and a medium. It aims to solve the technical problem in the prior art where the lack of an immediate inspection mechanism leads to a significant reduction in the reliability of the detection results when a single detection system experiences occlusion or performance degradation, thereby affecting the output quality of the printer.

[0006] To achieve the above objectives, a first aspect of the present invention provides a dual-path optical density detection method for a film printer, wherein the film printer includes a first optical detection system, a second optical detection system, and a transmission system interconnected with each other, and the method includes:

[0007] The transmission system controls the test medium to pass through the first optical detection system to obtain first optical density data.

[0008] The transmission system controls the test medium to pass through the second optical detection system to obtain second optical density data.

[0009] The self-verification result is obtained based on the first optical density data and the second optical density data;

[0010] When the self-verification result indicates that both the first optical detection system and the second optical detection system are in an unobstructed state, the first optical detection system and the second optical detection system are controlled to acquire the target optical density data of the target medium.

[0011] In some embodiments, the detection accuracy of the first optical detection system is lower than that of the second optical detection system. Controlling the first optical detection system and the second optical detection system to acquire target optical density data of the target medium includes:

[0012] Obtain printing requirement information;

[0013] The target detection mode is determined from multiple preset detection modes based on the printing requirement information. The preset detection modes include: sequential detection mode and synchronous detection mode.

[0014] According to the target detection mode, the first optical detection system and the second optical detection system are controlled to acquire the target optical density data of the target medium.

[0015] In some embodiments, when the target detection mode is a sequential detection mode, controlling the first optical detection system and the second optical detection system to acquire target optical density data of the target medium according to the target detection mode includes:

[0016] The first optical detection system performs preliminary optical density detection on the target medium to obtain third optical density data.

[0017] If the third optical density data meets the preset first detection standard, the second optical detection system is used to perform precise optical density detection on the target medium to obtain the fourth optical density data, and the fourth optical density data is determined as the target optical density data of the target medium.

[0018] In some embodiments, when the target detection mode is a synchronous detection mode, controlling the first optical detection system and the second optical detection system to acquire target optical density data of the target medium according to the target detection mode includes:

[0019] The first optical detection system and the second optical detection system are controlled to simultaneously perform optical density detection on the same area of ​​the target medium;

[0020] During the detection process, the first optical detection system performs data acquisition on the target medium to obtain the data acquisition result, and the second optical detection system obtains the target optical density data of the target medium based on the data acquisition result.

[0021] In some embodiments, the film printer further includes a first light-emitting system, the first light-emitting system and the first light-detecting system being respectively disposed on both sides of the transmission system, wherein controlling the test medium to pass through the first light-detecting system via the transmission system to obtain first optical density data includes:

[0022] The transmission system controls the test medium to pass through the first optical detection system;

[0023] When the test medium covers the first light detection system, the first light emission system is controlled to emit a light signal of a preset specification to the test medium, so that the light signal shines on the first light detection system through the test medium;

[0024] The first optical detection system acquires the current light intensity data of the optical signal and obtains the first optical density data based on the current light intensity data.

[0025] In some embodiments, the film printer further includes a second light-emitting system, the second light-emitting system and the second light-detecting system being respectively disposed on both sides of the transmission system, wherein controlling the test medium to pass through the second light-detecting system via the transmission system to obtain second optical density data includes:

[0026] The transmission system controls the test medium to pass through the second optical detection system;

[0027] When the test medium covers the second light detection system, the second light emission system is controlled to emit a light signal of a preset specification to the test medium, so that the light signal shines on the second light detection system through the test medium;

[0028] The second optical detection system acquires the current light intensity data of the optical signal and obtains the second optical density data based on the current light intensity data.

[0029] In some embodiments, the detection accuracy of the first optical detection system is 12 bits, and the detection accuracy of the second optical detection system is 24 bits.

[0030] To achieve the above objectives, a second aspect of the present invention provides a film printer, comprising a first light detection system, a second light detection system, a transmission system, and a printer system interconnected with each other, wherein the printer system is used to implement the method described in the first aspect.

[0031] To achieve the above objectives, a third aspect of the present invention provides an electronic device, the electronic device including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the method described in the first aspect.

[0032] To achieve the above objectives, a fourth aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in the first aspect.

[0033] The dual-channel optical density detection method and related equipment for film printers proposed in this invention have at least the following effects: First, the first and second optical detection systems can ensure the accuracy and reliability of the detection through self-verification results. Furthermore, when one detection system experiences potential obstruction or malfunction, the other system can perform cross-verification, thereby avoiding print quality problems caused by erroneous optical density data, significantly improving the continuity of printing operations and reducing maintenance costs. Second, the two optical detection systems can work in parallel, increasing the detection speed, reducing the time required for high-precision detection, effectively improving overall printing efficiency, and enhancing performance in large-volume or high-speed printing tasks. Moreover, the presence of two optical detection systems increases the operational flexibility of the film printer, allowing the detection mode to be adjusted according to different printing needs, enabling the printer to better adapt to varied printing tasks, thereby meeting the requirements of different quality standards and improving the detection accuracy and efficiency of optical density detection in film printers. Attached Figure Description

[0034] Figure 1 This is a flowchart of a dual-channel optical density detection method for a film printer provided in an embodiment of the present invention;

[0035] Figure 2 This is a flowchart of a dual-channel optical density detection method for a film printer provided in another embodiment of the present invention;

[0036] Figure 3 This is a flowchart of a dual-channel optical density detection method for a film printer provided in another embodiment of the present invention;

[0037] Figure 4 This is a flowchart of a dual-channel optical density detection method for a film printer provided in another embodiment of the present invention;

[0038] Figure 5 This is a flowchart of a dual-channel optical density detection method for a film printer provided in another embodiment of the present invention;

[0039] Figure 6 This is a flowchart of a dual-channel optical density detection method for a film printer provided in another embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the hardware structure of the electronic device provided in an embodiment of the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to limit the invention.

[0044] In recent years, optical density detection has become a crucial step in ensuring print quality in traditional film printer technology. The accuracy of optical density detection directly affects the final display effect of the film image, especially in terms of color saturation, contrast, and detail. Typically, film printers use a single-channel optical density detection system to perform this task. This system determines the ink density and distribution by detecting the absorption or transmittance of different color spectra, and adjusts printing parameters accordingly to achieve the desired print quality. However, in single-channel optical density detection methods, the reliability of the detection results is greatly reduced when the single detection system experiences obstruction or performance degradation, thus affecting the printer's output quality. Since there is no immediate verification mechanism, these problems usually require manual intervention for diagnosis and calibration, which not only increases maintenance costs but also affects the continuity of printing operations.

[0045] Based on this, embodiments of the present invention provide a dual-channel optical density detection method for a film printer, a film printer, an electronic device, and a medium, aiming to solve the technical problem in the prior art where the lack of an immediate inspection mechanism leads to a significant reduction in the reliability of the detection results when a single detection system experiences occlusion or performance degradation, thereby affecting the output quality of the printer.

[0046] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0047] Please see Figure 1 , Figure 1This is a flowchart of a dual-channel optical density detection method for a film printer according to an embodiment of the present invention. The first aspect of the present invention provides a dual-channel optical density detection method for a film printer, the film printer including a first optical detection system, a second optical detection system, and a transmission system interconnected. The method includes:

[0048] Step S110: Control the test medium through the transmission system to pass through the first optical detection system to obtain the first optical density data;

[0049] Step S120: The test medium is controlled to pass through the second optical detection system via the transmission system to obtain the second optical density data;

[0050] Step S130: Obtain the self-verification result based on the first optical density data and the second optical density data;

[0051] Step S140: When the self-verification result indicates that both the first optical detection system and the second optical detection system are in an unobstructed state, control the first optical detection system and the second optical detection system to acquire the target optical density data of the target medium.

[0052] In some embodiments, through steps S110 to S140 described above, the first and second optical detection systems provided by the present invention can ensure the accuracy and reliability of detection through self-verification results. Furthermore, when one detection system experiences potential obstruction or malfunction, the other system can perform cross-verification, thereby avoiding print quality problems caused by erroneous optical density data. This significantly improves the continuity of printing operations and reduces maintenance costs. Secondly, the two optical detection systems can work in parallel, increasing detection speed and reducing the time required for high-precision detection, effectively improving overall printing efficiency and performance in high-volume or high-speed printing tasks. The presence of two optical detection systems also increases the operational flexibility of the film printer, allowing the detection mode to be adjusted according to different printing needs, enabling the printer to better adapt to varied printing tasks and meet the requirements of different quality standards, thus improving the detection accuracy and efficiency of optical density detection in film printers.

[0053] In some embodiments, a self-verification result is obtained based on the first optical density data and the second optical density data. This is achieved by controlling the test medium to pass through two sets of optical detection systems and comparing the detection results of the two sets of optical detection systems for mutual verification. If the detected optical densities are inconsistent, it indicates that one of the detection systems may be obstructed. If the detected optical densities are consistent, it indicates that both the first and second optical detection systems are in an unobstructed state. Through the above steps, a self-correction function can be realized before the printer officially starts testing, so as to ensure the accuracy of subsequent optical density detection of the target medium.

[0054] Please see Figure 2 , Figure 2 This is a flowchart of a dual-channel optical density detection method for a film printer according to another embodiment of the present invention. In some embodiments, the detection accuracy of the first optical detection system is lower than that of the second optical detection system. Controlling the first and second optical detection systems to acquire target optical density data of the target medium includes:

[0055] Step S210: Obtain print requirement information;

[0056] Step S220: Determine the target detection mode from multiple preset detection modes based on the printing requirement information. The preset detection modes include: sequential detection mode and synchronous detection mode.

[0057] Step S230: According to the target detection mode, control the first optical detection system and the second optical detection system to acquire the target optical density data of the target medium.

[0058] It is conceivable that in existing technologies, single-channel optical density detection systems often need to balance processing speed and accuracy. Since high-precision detection usually takes a long time to complete, this limits the efficiency of printers under high-speed printing requirements. In addition, for large-volume and time-sensitive printing tasks, the efficiency bottleneck of a single detection system is particularly prominent. At the same time, single-channel detection systems have poor flexibility. Under different types of printing tasks or different quality requirements, a single detection system is difficult to adapt to changes and cannot provide diversified detection solutions, thus failing to meet the ever-changing needs of the modern printing industry.

[0059] Therefore, through the above steps S210 to S230, the present invention can utilize a dual-system design, and by flexibly applying different detection modes, the detection process can be optimized according to specific circumstances, thereby improving efficiency and printing quality, and reducing costs and error rates.

[0060] In some embodiments, step S210 involves collecting printing demand information about the upcoming print job. This printing demand information may include expected print density, print speed, media type (e.g., paper, film, etc.), and print quality requirements. This information helps determine which detection mode to use to meet the printing demands.

[0061] In some embodiments, in step S220, based on the printing demand information collected in step S210, the system selects the most suitable mode for the current task from the preset detection modes. The preset modes include sequential detection mode and synchronous detection mode. Sequential detection mode (step-by-step upgrade function): This mode first uses a first optical detection system with lower precision for preliminary detection. If the result meets the requirements within the low precision range, further high precision detection is not required, thus saving time. Synchronous detection mode (simultaneous use of two system functions): This mode simultaneously starts the low precision and high precision detection systems. The low precision system quickly performs preliminary screening and data acquisition within a large range, and then the high precision system refines these data to obtain accurate optical density measurement values.

[0062] In some embodiments, step S230, controlling the detection system to acquire data, includes, according to the selected target detection mode, the control system will correspondingly activate the first and second optical detection systems. In sequential detection mode, the system first activates the first optical detection system for detection; if further high-precision detection is required, the second optical detection system is then activated. In synchronous detection mode, the two systems will be activated simultaneously to work collaboratively. The sequential mode avoids using high-precision detection, which is more time-consuming, by using low-precision detection first for rapid screening. At the same time, when high-precision data is not required, the sequential mode avoids unnecessary high-precision detection, saving computing resources and time, and reducing energy consumption. The synchronous mode allows rapid screening and accurate detection to be performed simultaneously, reducing the overall detection time, especially in large-volume printing tasks. Based on the above, this application can flexibly select different detection modes according to different printing task requirements, enabling the detection system to better adapt to changing work needs.

[0063] Please see Figure 3 , Figure 3 This is a flowchart of a dual-channel optical density detection method for a film printer according to another embodiment of the present invention. In some embodiments, when the target detection mode is a sequential detection mode, the first optical detection system and the second optical detection system are controlled to acquire the target optical density data of the target medium according to the target detection mode, including:

[0064] Step S310: Perform preliminary optical density detection on the target medium using the first optical detection system to obtain the third optical density data;

[0065] Step S320: If the third optical density data meets the preset first detection standard, the second optical detection system is used to perform precise optical density detection on the target medium to obtain the fourth optical density data, and the fourth optical density data is determined as the target optical density data of the target medium.

[0066] In some embodiments, corresponding to step S310, the first optical detection system performs preliminary optical density detection on the target medium, such as the material being printed, to obtain a preliminary, low-precision third optical density data. Then, in step S320, if the third optical density data obtained in step S310 meets a preset first detection standard, this step is initiated. In this step, the second optical detection system performs more precise optical density detection on the target medium to obtain fourth optical density data. This fourth optical density data is typically more accurate and better reflects the actual optical density of the target medium; therefore, it is determined as the "target optical density data" of the target medium. The first detection standard may include a preset optical density threshold or range.

[0067] In some embodiments, through steps S310 to S320 described above, this application can first use a low-precision detection system, and then use a high-precision detection system to perform detection if the detection result is within the low-precision range, thereby improving the detection speed.

[0068] In some embodiments, through steps S310 to S320 described above, this application can use the second optical detection system for precise detection only when the preliminary detection results meet the preset conditions. This ensures that the obtained target optical density data can be acquired quickly and with high precision, improving the accuracy and reliability of the data. Moreover, this sequential detection mode can avoid using high-precision detection with high resource consumption in unnecessary situations, effectively saving hardware resources and reducing energy consumption. At the same time, in application scenarios with special precision requirements for printing tasks, such as professional images or graphics, this application can also use this mode to execute the high-precision second optical detection system to obtain more accurate optical density data, making the system highly flexible and able to be adjusted accordingly to different needs.

[0069] Please see Figure 4 , Figure 4 This is a flowchart of a dual-channel optical density detection method for a film printer provided in another embodiment of the present invention. In some embodiments, when the target detection mode is a synchronous detection mode, the first optical detection system and the second optical detection system are controlled to acquire the target optical density data of the target medium according to the target detection mode, including:

[0070] Step S410: Control the first optical detection system and the second optical detection system to simultaneously perform optical density detection on the same area of ​​the target medium;

[0071] In step S420, during the detection process, the target medium is processed by the first optical detection system to obtain the data acquisition result, and the target optical density data of the target medium is obtained by the second optical detection system based on the data acquisition result.

[0072] In some embodiments, corresponding to step S410, the first optical detection system and the second optical detection system are controlled to synchronously detect the optical density of the same area of ​​the target medium. This means that the two systems collect data at almost the same time, so the data of the two systems can be compared and calibrated very effectively, resulting in a more consistent and accurate measurement result. During the detection process, corresponding to step S420, the first optical detection system performs data acquisition processing, that is, the first optical detection system first processes the collected optical density data. This data acquisition result can be a pre-processed data value, such as filtering, averaging or other forms of signal processing. The second optical detection system determines the target optical density data of the target medium based on the data acquisition result obtained by the first optical detection system. This process may include further data processing, algorithm analysis or correction steps to ensure that high-precision optical density data is obtained.

[0073] In some embodiments, through steps S410 to S420, this application uses two detection systems simultaneously to detect the same area. For example, the low-precision detection system filters errors within a large density range and completes rapid data acquisition, while the high-precision detection system obtains high-precision detection results based on the acquired data, further improving the detection speed.

[0074] In some embodiments, by using two detection systems simultaneously to detect the same area through steps S410 to S420, the overall detection time can be saved, thus making it effective in scenarios requiring large-scale production or rapid detection.

[0075] Please see Figure 5 , Figure 5 This is a flowchart of a dual-channel optical density detection method for a film printer according to another embodiment of the present invention. In some embodiments, the film printer further includes a first light-emitting system. The first light-emitting system and the first optical detection system are respectively disposed on both sides of a transmission system. The transmission system controls the test medium to pass through the first optical detection system to obtain first optical density data, including:

[0076] Step S510: The test medium is controlled to pass through the first optical detection system via the transmission system;

[0077] Step S520: When the test medium covers the first light detection system, control the first light emission system to emit a light signal of a preset specification to the test medium so that the light signal shines on the first light detection system through the test medium.

[0078] Step S530: Obtain the current light intensity data of the light signal through the first light detection system, and obtain the first light density data based on the current light intensity data.

[0079] Please see Figure 6 , Figure 6This is a flowchart of a dual-path optical density detection method for a film printer according to another embodiment of the present invention. In some embodiments, the film printer further includes a second light-emitting system. The second light-emitting system and the second optical detection system are respectively disposed on both sides of a transmission system. The transmission system controls the test medium to pass through the second optical detection system to obtain second optical density data, including:

[0080] Step S610: The test medium is controlled to pass through the second optical detection system via the transmission system;

[0081] Step S620: When the test medium covers the second light detection system, control the second light emission system to emit a light signal of a preset specification to the test medium so that the light signal shines on the second light detection system through the test medium.

[0082] Step S630: Obtain the current light intensity data of the light signal through the second light detection system, and obtain the second light density data based on the current light intensity data.

[0083] In some embodiments, the dual-channel optical density detection method for film printers of the present invention is applied to a printer system in a film printer. The printer system controls the transmission system to deliver the medium to be tested to the detection position. The printer system controls the light-emitting diodes to emit a certain amount of light through the light-emitting system. The light passes through the medium to be tested and illuminates the light detection system. The printer system obtains the current light intensity data through the light detection system. The light-emitting diodes correspond to the first and second light-emitting systems of the present invention, and the light detection system corresponds to the first and second light detection systems of the present invention. They are respectively arranged at different positions in the machine, such as on both sides of the transmission system, so that when the transmission system transmits the medium to be tested and the target medium, the medium to be tested and the target medium can pass between the light-emitting system and the light detection system, thereby allowing the light signal to pass through the medium to be tested and illuminate the light detection system. The printer system obtains the current light intensity data through the light detection system to obtain the optical density data.

[0084] In some embodiments, the detection accuracy of the first optical detection system is 12 bits, and the detection accuracy of the second optical detection system is 24 bits. The advantage of the first optical detection system is its fast detection speed, while the advantage of the second optical detection system is its high accuracy. Therefore, by using the two systems in combination, the present invention can achieve the advantages of high detection accuracy and fast detection speed. This allows the printer system to adjust the detection mode according to different printing needs, enabling the printer to better adapt to changing printing tasks and meet the requirements of different quality standards, thereby improving the detection accuracy and efficiency of optical density detection in film printers.

[0085] Secondly, embodiments of the present invention also provide a film printer, including a first light detection system, a second light detection system, a transmission system, and a printer system interconnected with each other, wherein the printer system is used to implement the method of the first aspect described above.

[0086] Thirdly, embodiments of the present invention also provide an electronic device, comprising: a memory, a processor, a program stored in the memory and executable on the processor, and a data bus for communication between the processor and the memory. When the program is executed by the processor, it implements the aforementioned dual-channel optical density detection method based on a film printer. This electronic device can be any smart terminal, including tablet computers, in-vehicle computers, etc.

[0087] Please see Figure 7 , Figure 7 The hardware structure of an electronic device according to another embodiment is illustrated. The electronic device includes: a processor 701, which can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, for executing related programs to implement the technical solutions provided in the embodiments of the present invention; and a memory 702, which can be implemented using a read-only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM), etc. The memory 702 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 702 and is called and executed by the processor 701 to implement the dual-channel optical density detection method based on film printer of the present invention. The input / output interface 703 is used to realize information input and output. The communication interface 704 is used to realize communication interaction between this device and other devices. Communication can be realized through wired means (such as USB, network cable, etc.) or through wireless means (such as mobile network, WIFI, Bluetooth, etc.). The bus 705 transmits information between the various components of the device (such as processor 701, memory 702, input / output interface 703 and communication interface 704). The processor 701, memory 702, input / output interface 703 and communication interface 704 realize communication connection between each other within the device through the bus 705.

[0088] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing one or more programs, which can be executed by one or more processors to implement the above-described dual-channel optical density detection method based on a film printer.

[0089] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0090] The embodiments described in this invention are for the purpose of more clearly illustrating the technical solutions of the embodiments of this invention, and do not constitute a limitation on the technical solutions provided by the embodiments of this invention. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this invention are also applicable to similar technical problems.

[0091] It will be understood by those skilled in the art that Figures 1 to 7 The technical solutions shown do not constitute a limitation on the embodiments of the present invention, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0092] The terms "first," "second," "third," "fourth," etc. (if present) in the specification and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0093] It will be understood by those skilled in the art that all or some of the steps in the methods disclosed above, and the corresponding systems, can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer-readable storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer-readable storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer-readable storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0094] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and spirit of the present invention should be within the scope of the claims of the present invention.

Claims

1. A dual-channel optical density detection method for a film printer, characterized in that, The film printer includes a first light detection system, a second light detection system, and a transmission system interconnected with each other; the method includes: The transmission system controls the test medium to pass through the first optical detection system to obtain first optical density data. The transmission system controls the test medium to pass through the second optical detection system to obtain second optical density data. The self-verification result is obtained based on the first optical density data and the second optical density data; When the self-verification result indicates that both the first optical detection system and the second optical detection system are in an unobstructed state, printing demand information is acquired. Based on the printing demand information, a target detection mode is determined from multiple preset detection modes. Based on the target detection mode, the first optical detection system and the second optical detection system are controlled to acquire the target optical density data of the target medium. The detection accuracy of the first optical detection system is lower than that of the second optical detection system. The preset detection modes include sequential detection mode and synchronous detection mode.

2. The dual-channel optical density detection method for a film printer according to claim 1, characterized in that, When the target detection mode is a sequential detection mode, controlling the first optical detection system and the second optical detection system to acquire target optical density data of the target medium according to the target detection mode includes: The first optical detection system performs preliminary optical density detection on the target medium to obtain third optical density data. If the third optical density data meets the preset first detection standard, the second optical detection system is used to perform precise optical density detection on the target medium to obtain the fourth optical density data, and the fourth optical density data is determined as the target optical density data of the target medium.

3. The dual-channel optical density detection method for a film printer according to claim 1, characterized in that, When the target detection mode is a synchronous detection mode, controlling the first optical detection system and the second optical detection system to acquire the target optical density data of the target medium according to the target detection mode includes: The first optical detection system and the second optical detection system are controlled to simultaneously perform optical density detection on the same area of ​​the target medium; During the detection process, the optical density data of the target medium is processed by the first optical detection system to obtain the data acquisition result, and the optical density data of the target medium is processed by the second optical detection system according to the data acquisition result to obtain the target optical density data of the target medium. The first data acquisition process includes filtering or averaging, and the second data acquisition process includes at least one of data processing, algorithm analysis, or correction.

4. The dual-channel optical density detection method for a film printer according to claim 1, characterized in that, The film printer further includes a first light-emitting system, and the first light-emitting system and the first light-detecting system are respectively disposed on both sides of the transmission system. The step of controlling the test medium to pass through the first light-detecting system via the transmission system to obtain first optical density data includes: The transmission system controls the test medium to pass through the first optical detection system; When the test medium covers the first light detection system, the first light emission system is controlled to emit a light signal of a preset specification to the test medium, so that the light signal shines on the first light detection system through the test medium; The first optical detection system acquires the current light intensity data of the optical signal and obtains the first optical density data based on the current light intensity data.

5. The dual-channel optical density detection method for a film printer according to claim 1, characterized in that, The film printer further includes a second light-emitting system, and the second light-emitting system and the second light-detection system are respectively disposed on both sides of the transmission system. The step of controlling the test medium to pass through the second light-detection system via the transmission system to obtain second optical density data includes: The transmission system controls the test medium to pass through the second optical detection system; When the test medium covers the second light detection system, the second light emission system is controlled to emit a light signal of a preset specification to the test medium, so that the light signal shines on the second light detection system through the test medium; The second optical detection system acquires the current light intensity data of the optical signal and obtains the second optical density data based on the current light intensity data.

6. The dual-channel optical density detection method for a film printer according to claim 1, characterized in that, The detection accuracy of the first optical detection system is 12 bits, and the detection accuracy of the second optical detection system is 24 bits.

7. A film printer, characterized in that, The system includes a first optical detection system, a second optical detection system, a transmission system, and a printer system that are interconnected, wherein the printer system is used to implement the dual-channel optical density detection method for a film printer as described in any one of claims 1 to 6.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the dual-channel optical density detection method for a film printer as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The device contains a computer program that, when executed by a processor, implements the dual-channel optical density detection method for a film printer as described in any one of claims 1 to 6.

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