Electrical control system of multi-mode man-machine high-efficiency interactive decorative paper printing machine

Abstract

A multi-mode man-machine high-efficiency interaction decorative paper printing machine electrical control system comprises a central processing unit used for receiving and processing various signals and controlling operation of all modules; the feedback device is used for monitoring working parameters of the printing machine in real time and outputting the working parameters to the central processor; the image acquisition module is used for acquiring image information in a decorative paper printing process in real time and transmitting the image information to the central processing unit; the voice acquisition module is used for acquiring a voice instruction for remotely controlling the printing machine; the intelligent control and optimization unit is used for processing the multi-mode information and the working parameters received by the central processing unit to obtain a printing machine operation control strategy and outputting the printing machine operation control strategy to the central processing unit, and meanwhile the control strategy can be adjusted in real time; the execution device is used for performing corresponding action control according to the control instruction of the central processing unit; and the man-machine interaction interface is used for inputting various parameters of the printing machine and displaying the working state and fault information of the printing machine in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of decorative paper printing, and relates to a multi-modal human-machine high-efficiency interactive decorative paper printing machine electrical control system. Background Art

[0002] As people's living standards continue to improve, the demand for decorative paper is becoming increasingly diversified. Printing is a key link in the production process of decorative paper. The traditional electrical control system of decorative paper printing machines has problems such as inconvenient operation, low degree of automation, low precision, and poor human-computer interaction, which makes it difficult to meet the needs of modern decorative paper production. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a multi-modal human-machine high-efficiency interactive decorative paper printing machine electrical control system, which has the advantages of strong human-machine interactivity, high degree of automation, high precision, high reliability, etc., and can meet the needs of modern decorative paper production; it can improve the printing quality and production efficiency of decorative paper, reduce production costs, and bring good economic and social benefits to decorative paper production enterprises.

[0004] The technical solution adopted by the present invention is:

[0005] A multi-modal human-machine high-efficiency interactive decorative paper printing machine electrical control system, comprising:

[0006] The central processing unit is used to receive and process various signals and control the operation of each module;

[0007] Feedback device, used to monitor the working parameters of the printing press in real time and output them to the central processor;

[0008] Image acquisition module, used to collect image information in the process of decorative paper printing in real time and transmit it to the central processor;

[0009] A voice collection module is used to collect voice commands for remote control of the printing press;

[0010] Intelligent control and optimization, which is used to process the multi-modal information and working parameters received by the central processor to obtain the printing press operation control strategy and output it to the central processor, and can also adjust the control strategy in real time;

[0011] A communication module, used for communicating with external devices to realize remote monitoring and management of the printing press;

[0012] An execution device, used to perform corresponding action control according to the control instructions of the central processing unit;

[0013] Human-computer interaction interface, used to input various parameters of the printing press and to display the working status and fault information of the printing press in real time;

[0014] Power supply, used to supply power to each module.

[0015] Furthermore, the central processing unit also includes a PLC for controlling the printing press through programming.

[0016] Furthermore, the feedback device includes a temperature sensor, a pressure sensor, and a speed sensor.

[0017] Furthermore, the intelligent control and optimized intelligent control adopts fuzzy logic control algorithm.

[0018] Furthermore, the fuzzy logic control algorithm formulates corresponding fuzzy control rules according to the fuzzy information of the color deviation degree and temperature deviation range of the printed pattern.

[0019] Furthermore, in the intelligent control and optimized intelligent control, a convolutional neural network is used for image feature extraction.

[0020] Furthermore, the optimization of the intelligent control and optimization adopts a genetic optimization algorithm.

[0021] Furthermore, the genetic optimization algorithm uses the control parameters of the printing press, namely temperature, pressure, and dye dosage, as individuals of the genetic algorithm, and the evaluation indicators of printing effect, namely color accuracy, pattern clarity, and production efficiency, as fitness functions, and finds the optimal combination of control parameters through self-learning and continuous iterative evolution.

[0022] Beneficial effects of the present invention:

[0023] 1. The voice acquisition module allows operators to quickly operate the printing press without interrupting their work, reducing operation time and labor costs. For example, when the operator is doing other auxiliary work, he can directly control the start, stop or adjust parameters of the printing press through voice commands without having to go to the control console for manual operation, which greatly improves work efficiency. The image acquisition and real-time monitoring functions can promptly detect problems in the printing process, avoiding rework and production stoppage due to quality problems, thereby ensuring the continuity of production and further improving production efficiency.

[0024] 2. Real-time monitoring of printing and dyeing quality through image acquisition can timely discover and correct problems such as color deviation and pattern defects in the printing and dyeing process, ensuring that the printing and dyeing quality of decorative paper meets high standards. This helps to improve the market competitiveness of products and meet customers' demand for high-quality decorative paper. Intelligent control and optimization can make the printing and dyeing process more stable and precise, reduce the impact of human factors on product quality, and further improve product consistency and reliability.

[0025] 3. Through the human-computer interaction interface, users can easily set and adjust printing and dyeing parameters and monitor the working status of the printing press in real time, which greatly improves the convenience of operation and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the framework of the present invention. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all possible alternatives, improvements and equivalents within the scope of the claims.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise clearly defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] Reference Figure 1 This embodiment provides a multi-modal human-machine high-efficiency interactive decorative paper printing machine electrical control system, including:

[0032] The central processing unit is used to receive and process various signals and control the operation of each module;

[0033] Feedback device, used to monitor the working parameters of the printing press in real time and output them to the central processor;

[0034] Image acquisition module, used to collect image information in the process of decorative paper printing in real time and transmit it to the central processor;

[0035] A voice collection module is used to collect voice commands for remote control of the printing press;

[0036] Intelligent control and optimization, which is used to process the multi-modal information and working parameters received by the central processor to obtain the printing press operation control strategy and output it to the central processor, and can also adjust the control strategy in real time;

[0037] Communication module, used to communicate with external devices (such as host computers, other production equipment, etc.) to achieve remote monitoring and management of the printing press;

[0038] Actuators, used to perform corresponding action control according to the control instructions of the central processor, including motors, valves, pumps, etc.;

[0039] Human-computer interaction interface, used to input various parameters of the printing press (such as printing and dyeing speed, color ratio, pattern selection, etc.) and to display the working status and fault information of the printing press in real time;

[0040] Power supply, used to supply power to each module.

[0041] The central processing unit described in this embodiment also includes a PLC (programmable logic controller) for controlling the printing press through programming.

[0042] The feedback device described in this embodiment includes a temperature sensor, a pressure sensor, and a speed sensor. The central processing unit performs corresponding control adjustments based on these signals to ensure the stable operation of the printing and dyeing machine.

[0043] The intelligent control and optimization of the intelligent control described in this embodiment adopts a fuzzy logic control algorithm. Specifically, it is used to process systems with uncertainty and ambiguity. In a decorative paper printing machine, some parameters of the printing process may be difficult to accurately measure or define. For example, the quality of the printing effect may be a fuzzy concept. The fuzzy logic control algorithm converts fuzzy input information into fuzzy control output by defining fuzzy sets and fuzzy rules, and then obtains accurate control instructions through fuzzy reasoning and defuzzification operations. For example, the fuzzy logic control algorithm formulates corresponding fuzzy control rules based on the fuzzy information of the color deviation degree and temperature deviation range of the printed pattern to achieve intelligent control of the printing machine.

[0044] In the intelligent control and optimization of the present embodiment, a convolutional neural network (CNN) is used to extract image features. CNN can automatically extract features such as edges, textures, and colors of images. In a printing machine, the features of printed patterns can be extracted through a trained CNN model, so that the quality and color accuracy of the pattern can be analyzed and judged later. It complements the fuzzy logic algorithm.

[0045] The optimization of intelligent control and optimization described in this embodiment adopts a genetic optimization algorithm. The genetic algorithm simulates the process of biological evolution and searches for the optimal solution in the solution space through operations such as selection, crossover and mutation. In the application of the decorative paper printing machine, the control parameters of the printing machine such as temperature, pressure, dye feeding amount, etc. are used as individuals of the genetic algorithm, and the evaluation indicators of the printing effect such as color accuracy, pattern clarity, production efficiency, etc. are used as fitness functions. Through self-learning and continuous iterative evolution, the optimal control parameter combination is found to achieve optimal control of the printing process.

[0046] Establish the system model and input the corresponding parameters:

[0047] Model size = 20#

[0048] Gene length = 10#

[0049] Crossover rate = 0.8#

[0050] Mutation rate = 0.1#

[0051] maxGenerations=50#

[0052] #Fitness function

[0053] Fuzzy simplification:

[0054] renew#

[0055] # Initialize the population

[0056] population = np.random.rand(population size, gene length)

[0057] In range (maximum generations):

[0058] # Calculate fitness

[0059] fitnessValues ​​= np.array([fitnessFunction(individual) for individuals in the group])

[0060] #Select an operation

[0061] selected_index = np.argsort(fitnessValues)[::-1][:populationSize / / 2]

[0062] Selected modulus = model[selected index]

[0063] # Crossover operation

[0064] newPopulation = np.copy (selectedPopulation)

[0065] for i in range (0, populationSize, 2):

[0066] If np.random.rand() < crossover rate:

[0067] crossoverPoint = np.random.randint(1, gene length)

[0068] newPopulation[i, intersection:], newPopulation[i+1, number of intersections:] = \

[0069] newPopulation[i+1, intersection:], newPopulation[i, number of intersections:]

[0070] #Mutation operation

[0071] For the base unit in the new model:

[0072] If np.random.rand() < mutation rate:

[0073] Mutation point = np.random.randint(gene length)

[0074] individual[mutation point] = np.random.rand()

[0075] # Update population

[0076] Update model = create new model

[0077] The present invention integrates multiple functions such as voice acquisition, image acquisition and human-computer friendly interaction. Through the voice acquisition function, the operator can communicate and control the printing machine more conveniently without cumbersome manual operation steps, thereby improving work efficiency and operational flexibility. For example, during the printing process, the operator can adjust the printing and dyeing parameters, start or stop specific processes, etc. through voice commands. The image acquisition function provides strong support for the monitoring and analysis of printing quality. It can collect image information in the printing process of decorative paper in real time to detect the accuracy of the printed pattern, the consistency of color, and the presence of defects. This helps to promptly discover quality deviations in the printing process and take corresponding measures to adjust them, thereby ensuring the printing quality of decorative paper.

[0078] The human-machine friendly interaction of the present invention emphasizes a good interactive experience with the operator. Its design concept is to enable the operator to understand and operate the system easily and intuitively. It may include the use of a clear and easy-to-understand graphical interface to display information such as the operating status of the printing press, various parameters, and operation prompts. The operator can conveniently perform operations such as parameter setting and mode selection through interactive devices such as touch screens. At the same time, it also has an intelligent feedback mechanism, such as giving prompts and correction suggestions in time when the operator makes an erroneous operation, so as to avoid the adverse effects of erroneous operation on the printing and dyeing process. This human-machine friendly interaction design not only reduces the operator's work difficulty and training costs, but also improves the efficiency and accuracy of the entire printing and dyeing work.

[0079] The combination of voice and image acquisition functions of the present invention breaks the single information acquisition method of traditional printing machines. Through multimodal information acquisition, various situations in the printing process can be understood more comprehensively and accurately. For example, voice commands can quickly realize remote control of the printing machine, while image acquisition can perform real-time visual monitoring of the printing results. The two complement each other and improve the intelligence level and response speed of the system. In terms of information processing, the collected voice and image information can be quickly analyzed and processed. For example, the recognition accuracy of voice commands should be high, and the operator's intentions can be accurately understood; for image information, defects and anomalies in the printing and dyeing pattern should be quickly identified so that adjustments and repairs can be made in time.

[0080] The present invention realizes intelligent control and optimization based on the collected voice and image information and other relevant data. For example, by analyzing and learning a large amount of printing and dyeing data, the system can automatically adjust the printing and dyeing parameters to achieve the best printing and dyeing effect. Under different printing and dyeing tasks and environmental conditions, the system can automatically optimize the process flow according to the real-time situation to improve the printing and dyeing quality and production efficiency. It also has adaptive capabilities and can automatically adjust the control strategy according to the operating status of the printing and dyeing machine and the changes in equipment performance to ensure the stability and reliability of the printing and dyeing process. This intelligent control and optimization function not only improves the performance and quality of the printing and dyeing machine, but also reduces energy consumption and production costs.

[0081] The multimodal information fusion of the present invention is to integrate multiple different types of information to achieve more efficient and accurate human-computer interaction control. The details are as follows:

[0082] 1. In terms of visual modality, a high-definition camera is used to collect images of decorative paper, analyze pattern contours, color distribution, etc., with data accuracy of up to 0.1 mm and 16-bit color depth. The visual information of the operating status of the printing and dyeing machine, such as printing and dyeing patterns, color changes, etc., is integrated with data information such as the physical parameters of the machine equipment. In terms of color modality, a high-precision color sensor can be used to monitor the color data of decorative paper printing and dyeing in real time, such as RGB values, and its color measurement accuracy can reach △E*ab<1.0, providing an accurate basis for printing and dyeing quality control and color adjustment, thereby improving printing and dyeing effects and product quality.

[0083] 2. In tactile mode, with the help of pressure sensors, the contact pressure between the printing head and the paper can be sensed in the range of 0-500 g / cm2.

[0084] 3. In terms of environmental modality, the temperature and humidity sensors are used to monitor the ambient temperature and humidity, with a temperature accuracy of 0.5°C and a humidity accuracy of 3%. By collecting, transmitting and integrating these modal information through sensors, the intelligent control and optimization system can adjust the printing and dyeing parameters based on image data, optimize the printing and dyeing process based on tactile and environmental data, and achieve efficient and precise control.

[0085] The voice acquisition module of the present invention enables the operator to quickly operate the printing press without interrupting the work at hand, reducing the operation time and labor cost. For example, when the operator is performing other auxiliary work, the start, stop or adjustment parameters of the printing press can be directly controlled by voice commands, without going to the control console for manual operation, which greatly improves the work efficiency. The image acquisition and real-time monitoring functions can timely discover problems in the printing process, avoid rework and shutdown due to quality problems, thereby ensuring the continuity of production and further improving production efficiency. Through real-time monitoring of printing and dyeing quality through image acquisition, color deviation, pattern defects and other problems in the printing and dyeing process can be discovered and corrected in time, ensuring that the printing and dyeing quality of decorative paper meets high standards. This helps to improve the market competitiveness of products and meet customer demand for high-quality decorative paper. Intelligent control and optimization can make the printing and dyeing process more stable and accurate, reduce the impact of human factors on product quality, and further improve the consistency and reliability of products. Through the human-computer interaction interface, users can easily set and adjust printing and dyeing parameters, monitor the working status of the printing press in real time, and greatly improve the convenience of operation and production efficiency.

Claims

1. A multi-modal human-machine high-efficiency interactive decorative paper printing machine electrical control system, characterized in that: include: The central processing unit is used to receive and process various signals and control the operation of each module; Feedback device, used to monitor the working parameters of the printing press in real time and output them to the central processor; Image acquisition module, used to collect image information in the process of decorative paper printing in real time and transmit it to the central processor; A voice collection module is used to collect voice commands for remote control of the printing press; Intelligent control and optimization, which is used to process the multi-modal information and working parameters received by the central processor to obtain the printing press operation control strategy and output it to the central processor, and can also adjust the control strategy in real time; A communication module, used for communicating with external devices to realize remote monitoring and management of the printing press; An execution device, used to perform corresponding action control according to the control instructions of the central processing unit; Human-computer interaction interface, used to input various parameters of the printing press and to display the working status and fault information of the printing press in real time; Power supply, used to supply power to each module.

2. According to claim 1, a multi-modal human-machine high-efficiency interactive decorative paper printing press electrical control system is characterized by: The central processing unit also includes a PLC, which is used to control the printing press through programming.

3. The electrical control system of a multi-modal human-machine high-efficiency interactive decorative paper printing press according to claim 1, characterized in that: The feedback device includes a temperature sensor, a pressure sensor, and a speed sensor.

4. The electrical control system of a multi-modal human-machine high-efficiency interactive decorative paper printing press according to claim 1, characterized in that: The intelligent control and optimized intelligent control adopts fuzzy logic control algorithm.

5. The electrical control system of a multi-modal human-machine high-efficiency interactive decorative paper printing press according to claim 4, characterized in that: The fuzzy logic control algorithm formulates corresponding fuzzy control rules according to the fuzzy information of the color deviation degree and temperature deviation range of the printed pattern.

6. The electrical control system of a multi-modal human-machine high-efficiency interactive decorative paper printing press according to claim 4, characterized in that: In the intelligent control and optimized intelligent control, a convolutional neural network is used to extract image features.

7. The electrical control system of a multi-modal human-machine high-efficiency interactive decorative paper printing press according to claim 1, characterized in that: The optimization of the intelligent control and optimization adopts a genetic optimization algorithm.

8. The electrical control system of a multi-modal human-machine high-efficiency interactive decorative paper printing press according to claim 7, characterized in that: The genetic optimization algorithm uses the control parameters of the printing press, such as temperature, pressure, and dye dosage, as individuals of the genetic algorithm, and the evaluation indicators of printing effect, such as color accuracy, pattern clarity, and production efficiency, as fitness functions. Through self-learning and continuous iterative evolution, the optimal control parameter combination is found.

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