Production state audit playback method and device

Abstract

The invention relates to the technical field of industrial production state monitoring, and discloses a production state audit playback method and device, and the method comprises the steps: recognizing a measuring instrument and a valve as targets based on an upper process configuration image through employing a target detection technology, and binding the targets as an integral target; performing information identification on each overall target, and determining detailed information of each overall target in the upper process configuration picture; based on a video compression technology, determining a complete frame and a difference frame of a production state according to detailed information of the overall target; and obtaining a request playback time, constructing an initial picture of the production state according to the initial complete frame, and playing back the production state according to the time sequence of the subsequent complete frame and the difference frame. According to the invention, real-time monitoring and auditing playback of key equipment and parameters in the production process can be realized, and the efficiency and accuracy of production management are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial production status monitoring, and in particular to a method and device for production status audit playback. Background Art

[0002] In the field of industrial production, accurately grasping the production status plays a key role in ensuring production safety, improving production efficiency and optimizing product quality. Traditional production status monitoring and playback technology has many drawbacks. On the one hand, early production status recording methods often rely on manual recording of key data, which is not only inefficient, but also prone to human recording errors, making it difficult to ensure the accuracy and integrity of the data.

[0003] On the other hand, existing systems lack accuracy and intelligence when identifying key equipment such as measuring instruments and valves. Usually, they simply record some parameters of the equipment, and are unable to closely associate the equipment name with the status parameters, making it difficult to fully and accurately reflect the real-time status of the equipment. In addition, when replaying the production status, due to limitations in data processing and storage technology, it is impossible to efficiently generate complete frames and difference frames, which may cause problems such as freezing and data loss during the playback process, seriously affecting the review and analysis of the production process. Therefore, a new production status audit playback method is urgently needed to overcome the shortcomings of existing technologies and achieve accurate monitoring, efficient storage, and smooth playback of production status. Summary of the invention

[0004] The purpose of the present invention is to provide a method and device for production status audit playback, aiming to solve the above-mentioned problem.

[0005] The present invention provides a method for production status audit playback, comprising:

[0006] Construct the upper process configuration interface, and obtain the image displayed on the current upper computer configuration interface to determine it as the upper process configuration screen;

[0007] Using target detection technology, based on the upper process configuration screen, measuring instruments and valves are identified as targets, and the measuring instrument name or valve name and status parameters are bound as an overall target;

[0008] Through optical character recognition technology, information recognition is performed on each overall target to determine detailed information of each overall target in the upper process configuration screen, wherein the detailed information includes the measuring instrument name or valve name and the corresponding status data and recognition timestamp;

[0009] Based on video compression technology, determine the complete frame and difference frame of the production status according to the detailed information of the overall target;

[0010] The requested playback time is obtained, the complete frame closest to the requested playback time is determined as the initial complete frame, the initial screen of the production status is constructed according to the initial complete frame, and the production status is played back according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame.

[0011] Preferably, constructing the upper process configuration interface includes:

[0012] Obtaining an industrial production execution document, analyzing the industrial production execution document, and determining the installation position and connection relationship of each measuring instrument and valve;

[0013] Using configuration software, layout each measuring instrument and valve based on the installation position and connection relationship to obtain an upper process configuration interface template;

[0014] Real-time data of the production status is obtained, and the real-time data is updated and displayed on the upper process configuration interface template, a virtual interface corresponding to the production status is constructed, and an upper process configuration interface is obtained.

[0015] Preferably, optical character recognition technology is used to identify information of each overall target, and detailed information of each overall target in the upper process configuration screen is determined, including:

[0016] The target is cropped on the upper process configuration screen that has been identified to obtain an image containing only the target, and the cropped image is grayed and denoised;

[0017] Input the processed image into an optical character recognition engine, perform character recognition on the processed image, and obtain status data of each overall target;

[0018] Determine the current information recognition time as the recognition timestamp, and associate the recognition timestamp with the status data;

[0019] Determine detailed information of each overall target based on the associated identification timestamp and status data, and store the detailed information in an information database;

[0020] The detailed information is stored in a list format.

[0021] Preferably, the measuring instruments include: a temperature gauge, a pressure gauge and a flow meter;

[0022] The state data includes a temperature value of a thermometer, a pressure value of a pressure gauge, a flow value of a flow meter, and a valve switch state or a valve opening percentage of a valve.

[0023] Preferably, based on the video compression technology, determining the complete frame and the difference frame of the production status according to the detailed information of the overall target includes:

[0024] Recording a complete frame of each upper process configuration screen at a first preset time interval;

[0025] Determine at intervals of a second preset time whether there is a difference between the overall target detailed information of the upper process configuration screen of the current frame and the overall target detailed information of the previous frame, and if there is a difference, record the upper process configuration screen of the current frame as a difference frame;

[0026] If there is no difference, no difference frame is recorded.

[0027] Preferably, based on the video compression technology, the complete frame and the difference frame of the production status are determined according to the detailed information of the overall target, and further comprising: when recording a complete frame, determining the number of difference frames recorded within the time interval between the complete frame to be recorded and the last complete frame, and determining whether to correct the first preset time according to the number of records;

[0028] If the number of recording times is less than or equal to the preset number of recording times, the first preset time is not corrected, and a complete frame is recorded according to the first preset time;

[0029] If the number of recording times is greater than the preset number of recording times, the first preset time is corrected, and a complete frame is recorded according to the corrected first preset time.

[0030] Preferably, when correcting the first preset time, the difference between the number of records and the preset number of records is determined, a time correction coefficient is determined according to the difference in number, and the first preset time is corrected based on the time correction coefficient;

[0031] Presetting a first preset number of times difference and a second preset number of times difference, wherein the first preset number of times difference is smaller than the second preset number of times difference;

[0032] Determine a time correction coefficient according to a relationship between the number difference, the first preset number difference, and the second preset number difference;

[0033] If the number difference is less than the first preset number difference, the time correction coefficient is set to the first preset time correction coefficient A1, and the corrected first preset time is T×A1;

[0034] If the number difference is greater than or equal to the first preset number difference, and the number difference is less than the second preset number difference, the time correction coefficient is set to the second preset time correction coefficient A2, and the corrected first preset time is T×A2;

[0035] If the number difference is greater than or equal to the second preset number difference, the time correction coefficient is set to the third preset time correction coefficient A3, and the corrected first preset time is T×A3;

[0036] Wherein, T represents the first preset time, and 1<A1<A2<A3<1.2.

[0037] Preferably, determining whether there is a difference between the overall target detailed information of the upper process configuration screen of the current frame and the overall target detailed information of the previous frame at every second preset time interval includes:

[0038] Obtaining the overall target detailed information of the upper process configuration screen of the current frame and the overall target detailed information of the previous frame from the information database;

[0039] The overall target detailed information of the upper process configuration screen of the current frame is compared with the overall target detailed information of the previous frame. If the name of each measuring instrument or valve name and the corresponding status data are the same, it is determined that there is no difference;

[0040] If there are differences in the measuring instrument name or valve name and the corresponding status data, it is determined that there is a difference.

[0041] Preferably, obtaining the requested playback time, determining the complete frame closest to the requested playback time as the initial complete frame, constructing the initial screen of the production state according to the initial complete frame, and replaying the production state according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame, includes:

[0042] Obtaining a requested playback time, determining a nearest complete frame according to the requested playback time, and setting the frame as an initial complete frame;

[0043] Constructing an initial screen of the upper process configuration of the production status according to the initial complete frame, wherein the initial screen includes the initial status of the measuring instrument and the valve;

[0044] Starting from the time point corresponding to the initial complete frame, subsequent complete frames and difference frames are read in time order, and played back in time order of the complete frames and difference frames.

[0045] The present invention also discloses a production status audit playback device, which is used to apply the above production status audit playback method, including:

[0046] The configuration interface construction module is configured to construct an upper process configuration interface and obtain the image displayed on the current upper computer configuration interface to determine it as the upper process configuration screen;

[0047] The target detection binding module is configured to use the target detection technology to identify the measuring instrument and the valve as targets based on the upper process configuration screen, and bind the measuring instrument name or the valve name and the state parameter as an overall target;

[0048] An information identification and recording module is configured to perform information identification on each overall target through optical character recognition technology to determine detailed information of each overall target in the upper process configuration screen, wherein the detailed information includes a measuring instrument name or a valve name and corresponding status data and an identification timestamp;

[0049] A picture recording module is configured to determine the complete frame and the difference frame of the production status picture based on the detailed information of the overall target based on the video compression technology;

[0050] The audit playback module is configured to obtain the requested playback time, determine the complete frame closest to the requested playback time as the initial complete frame, construct the initial screen of the production status based on the initial complete frame, and play back the production status according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame.

[0051] Compared with the prior art, the beneficial effect of the present invention is that the present invention uses target detection technology to accurately identify measuring instruments and valves as targets, and binds their names with status parameters, so that the acquired equipment information is more comprehensive and accurate, providing a reliable data basis for subsequent production status analysis. In this way, the operating status of each device at different times can be clearly understood, greatly improving the refinement of production monitoring.

[0052] Based on video compression technology to determine the complete frame and difference frame of the production status, this innovative data processing method greatly reduces the amount of data storage and improves the efficiency of data transmission and processing. On the premise of ensuring the integrity of production status information, it reduces storage costs and system operation burdens, providing strong support for achieving efficient production status audit playback.

[0053] The initial complete frame is determined and the initial screen is constructed according to the requested playback time, and then the subsequent complete frames and difference frames are played back in chronological order, ensuring the smoothness and accuracy of the playback process. Operators can quickly and accurately review any period of the production process according to actual needs, which facilitates timely discovery of problems in the production process and provides an intuitive and reliable basis for production decision-making.

[0054] The implementation of this method enables production management personnel to grasp the production status more conveniently and comprehensively, helps to timely discover production anomalies and take effective measures, thereby improving production management efficiency, reducing production costs, and enhancing the company's market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0056] Figure 1 It is a flow chart of a production status audit playback method of the present invention.

[0057] Figure 2 It is a functional block diagram of a device for production status audit playback of the present invention. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0059] like Figure 1 As shown, the present invention provides a method for production status audit playback, comprising:

[0060] Construct the upper process configuration interface, and obtain the image displayed on the current upper computer configuration interface to determine it as the upper process configuration screen;

[0061] Using target detection technology, based on the upper process configuration screen, measuring instruments and valves are identified as targets, and the measuring instrument name or valve name and status parameters are bound as an overall target;

[0062] Through optical character recognition technology, information recognition is performed on each overall target to determine detailed information of each overall target in the upper process configuration screen, wherein the detailed information includes the measuring instrument name or valve name and the corresponding status data and recognition timestamp;

[0063] Based on video compression technology, determine the complete frame and difference frame of the production status according to the detailed information of the overall target;

[0064] The requested playback time is obtained, the complete frame closest to the requested playback time is determined as the initial complete frame, the initial screen of the production status is constructed according to the initial complete frame, and the production status is played back according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame.

[0065] The present invention can realize real-time monitoring and audit playback of key equipment and parameters in the production process, thereby improving the efficiency and accuracy of production management. By constructing an upper-level process configuration interface, each link and equipment status in the production process can be intuitively displayed, which is convenient for managers to conduct real-time monitoring and analysis. At the same time, by using target detection technology and optical character recognition technology, key information such as the name and status parameters of measuring instruments and valves can be automatically identified and extracted, avoiding the tedious process of manual recording and analysis, and improving the efficiency and accuracy of data processing. In addition, based on video compression technology, the complete frame and difference frame of the production status can be determined according to the detailed information of the overall target, further reducing the pressure of data storage and transmission and improving the playback efficiency.

[0066] In some embodiments of the present application, constructing an upper-level process configuration interface includes: obtaining an industrial production execution document, analyzing the industrial production execution document, and determining the installation position and connection relationship of each measuring instrument and valve; using configuration software to layout each measuring instrument and valve based on the installation position and connection relationship to obtain an upper-level process configuration interface template; obtaining real-time data of the production status, updating the real-time data and displaying it on the upper-level process configuration interface template, constructing a virtual interface corresponding to the production status, and obtaining an upper-level process configuration interface.

[0067] It is understandable that by obtaining the industrial production execution book and conducting in-depth analysis, the actual installation position and connection relationship between each measuring instrument and valve can be accurately grasped, which is the basis for building an accurate and reliable upper process configuration interface. Using professional configuration software, according to these detailed position and connection relationship information, the measuring instruments and valves are reasonably laid out, and a clearly structured and easy-to-understand upper process configuration interface template can be generated. Subsequently, by obtaining the latest data of the production status in real time and dynamically updating and displaying these data on the upper process configuration interface template, a virtual interface that is highly consistent with the actual situation of the production site can be constructed, namely the upper process configuration interface. The real-time and accuracy of this interface provides strong support for the subsequent production status audit playback.

[0068] In some embodiments of the present application, optical character recognition technology is used to perform information recognition on each overall target, and detailed information of each overall target in the upper-level process configuration screen is determined, including: performing target cropping on the upper-level process configuration screen that has been identified to obtain an image containing only the target, and graying and denoising the cropped image; inputting the processed image into an optical character recognition engine, performing character recognition on the processed image, and obtaining status data of each overall target; determining the current information recognition time as the recognition timestamp, and associating the recognition timestamp with the status data; determining detailed information of each overall target based on the associated recognition timestamp and status data, and storing the detailed information in an information database; wherein the detailed information is stored in a list form.

[0069] It is understandable that by adopting optical character recognition technology, accurate information recognition can be performed on each overall target in the upper process configuration screen. This step first extracts the key image containing only the target from the complex screen through target cropping, which effectively reduces the complexity and interference of subsequent processing. Then, the cropped image is grayed and denoised to further improve the image quality, laying a solid foundation for subsequent character recognition. The processed high-quality image is input into the advanced optical character recognition engine, which can accurately identify the character information in the image, thereby obtaining the status data of each overall target. In addition, by recording the recognition timestamp and associating it with the status data, the timeliness and accuracy of the information are ensured. Finally, these detailed information are stored in the information database in the form of a list, which not only facilitates data query and management, but also provides strong support for subsequent analysis and processing.

[0070] In some embodiments of the present application, the measuring instruments include: a thermometer, a pressure gauge and a flow meter; the status data includes the temperature value of the thermometer, the pressure value of the pressure gauge, the flow value of the flow meter and the valve switch status or valve opening percentage of the valve.

[0071] It is understandable that by specifying the types of measuring instruments and the specific content of status data, information identification is more targeted and practical. For example, measuring instruments such as temperature gauges, pressure gauges and flow meters play a vital role in the production process, and their status data directly reflects the stability and efficiency of the production process. By accurately obtaining the readings of these instruments through optical character recognition technology, the production status can be monitored in real time and potential problems can be discovered in time. At the same time, the switch status or opening percentage of the valve is also included in the scope of status data, making the audit playback of the production status more comprehensive and detailed.

[0072] In some embodiments of the present application, based on video compression technology, complete frames and difference frames of the production status are determined according to the detailed information of the overall target, including: recording a complete frame of each upper-level process configuration screen at every first preset time interval; determining whether there is a difference between the overall target detailed information of the upper-level process configuration screen of the current frame and the overall target detailed information of the previous frame at every second preset time interval, if there is a difference, recording the upper-level process configuration screen of the current frame as a difference frame; if there is no difference, not recording the difference frame.

[0073] It is understandable that by combining video compression technology, efficient recording and playback of production status is achieved. During the production process, changes in the upper-level process configuration screen often reflect important changes in the production status. This technical solution reasonably arranges the recording of complete frames and difference frames by setting the first preset time and the second preset time, which not only ensures the complete recording of key information, but also effectively reduces data redundancy and improves data processing efficiency. When it is necessary to audit and playback the production status, you only need to view the complete frame and the difference frame to quickly understand the changes in the production status, which is of great significance for problem tracing and production optimization.

[0074] In some embodiments of the present application, based on video compression technology, the complete frames and difference frames of the production status are determined according to the detailed information of the overall target, and it also includes: when recording a complete frame, determining the number of recordings of the difference frames within the time interval between the complete frame to be recorded and the previous complete frame, and determining whether to correct the first preset time according to the number of recordings; if the number of recordings is less than or equal to the preset number of recordings, the first preset time is not corrected, and the next complete frame is recorded according to the first preset time; if the number of recordings is greater than the preset number of recordings, the first preset time is corrected, and the next complete frame is recorded according to the corrected first preset time.

[0075] It can be understood that by recording the number of times the difference frame is recorded within the complete frame recording time interval and dynamically adjusting the first preset time according to the number of records, intelligent control of the recording frequency is achieved. When the number of times the difference frame is recorded is small, it means that the production status is relatively stable. At this time, there is no need to frequently record the complete frame. Therefore, keeping the original first preset time unchanged can reduce the workload of data storage and processing. When the number of times the difference frame is recorded is large, it means that the production status changes frequently. At this time, it is necessary to record the complete frame more intensively to capture more production status information. Therefore, by correcting the first preset time to increase the recording frequency of the complete frame, the integrity and accuracy of key information can be ensured. This intelligent control strategy enables the technical solution to flexibly adjust the recording strategy according to different production statuses, further improving the efficiency and practicality of data processing.

[0076] In some embodiments of the present application, when correcting the first preset time, the difference between the number of records and the preset number of records is determined, a time correction coefficient is determined according to the difference in number, and the first preset time is corrected based on the time correction coefficient; the first preset number difference and the second preset number difference are pre-set, and the first preset number difference is less than the second preset number difference; the time correction coefficient is determined according to the relationship between the number difference and the first preset number difference and the second preset number difference; if the number difference is less than the first preset number difference, the time correction coefficient is set. The number is the first preset time correction coefficient A1, and the corrected first preset time is T×A1; if the number difference is greater than or equal to the first preset number difference, and the number difference is less than the second preset number difference, then the time correction coefficient is set to the second preset time correction coefficient A2, and the corrected first preset time is T×A2; if the number difference is greater than or equal to the second preset number difference, then the time correction coefficient is set to the third preset time correction coefficient A3, and the corrected first preset time is T×A3; wherein T represents the first preset time, and 1<A1<A2<A3<1.2.

[0077] It can be understood that by determining the time correction coefficient according to the difference between the number of recording times and the preset number of recording times, and finely adjusting the first preset time based on the time correction coefficient, the flexibility and accuracy of recording frequency control are further improved.

[0078] In some embodiments of the present application, whether there is a difference between the overall target detailed information of the upper-level process configuration screen of the current frame and the overall target detailed information of the previous frame is determined every second preset time interval, including: obtaining the overall target detailed information of the upper-level process configuration screen of the current frame and the overall target detailed information of the previous frame from the information database; comparing the overall target detailed information of the upper-level process configuration screen of the current frame with the overall target detailed information of the previous frame one by one, if each measuring instrument name or valve name and the corresponding status data are the same, it is determined that there is no difference; if there is a difference in the measuring instrument name or valve name and the corresponding status data, it is determined that there is a difference.

[0079] It is understandable that by comparing the overall target detailed information of the upper process configuration screen of the current frame with that of the previous frame at every second preset time interval, changes in the production process can be discovered in a timely manner. This comparison not only covers the names of measuring instruments and valves, but also goes deep into their corresponding status data, ensuring the comprehensiveness and accuracy of the detection. When it is found that the information between the two frames is completely consistent, it means that the production status remains stable during this period, and no additional recording or processing is required, thereby saving storage space and computing resources. When information differences are detected, it means that the production status has changed, and the corresponding recording or alarm mechanism can be triggered at this time to capture and process these changes in a timely manner. This time interval-based comparison strategy not only improves the sensitivity and response speed to changes in production status, but also effectively avoids misjudgment or underreporting caused by information redundancy or omission, further enhancing the reliability and practicality of production status audit playback.

[0080] In some embodiments of the present application, a requested playback time is obtained, a complete frame closest to the requested playback time is determined as an initial complete frame, an initial screen of the production status is constructed based on the initial complete frame, and the production status is replayed based on the time sequence of complete frames and difference frames subsequent to the initial complete frame, including: obtaining the requested playback time, determining the complete frame at the nearest point based on the requested playback time, and setting it as the initial complete frame; constructing an initial screen of the upper-level process configuration of the production status based on the initial complete frame, the initial screen including the initial states of measuring instruments and valves; starting from the time point corresponding to the initial complete frame, reading subsequent complete frames and difference frames in chronological order, and replaying them in chronological order of the complete frames and the difference frames.

[0081] It is understandable that by obtaining the requested playback time and accurately locating the complete frame closest to that time as the initial complete frame, the initial picture of the production status can be quickly constructed, providing the user with an intuitive and accurate starting point. This step not only improves the efficiency of playback, but also helps users quickly understand the historical evolution of the production status. Subsequently, playback is performed according to the time sequence of the complete frames and difference frames following the initial complete frame, which can show the change process of the production status in detail and coherently. This playback method not only retains all the key information of the production status, but also can clearly present the cause and effect relationship between each event according to the time sequence, thereby helping users to have a deeper understanding of the changing laws of the production status.

[0082] like Figure 2 As shown, a device for production status audit playback is used to apply the above-mentioned production status audit playback method, including:

[0083] The configuration interface construction module is configured to construct an upper process configuration interface and obtain the image displayed on the current upper computer configuration interface to determine it as the upper process configuration screen;

[0084] The target detection binding module is configured to use the target detection technology to identify the measuring instrument and the valve as targets based on the upper process configuration screen, and bind the measuring instrument name or the valve name and the state parameter as an overall target;

[0085] An information identification and recording module is configured to perform information identification on each overall target through optical character recognition technology to determine detailed information of each overall target in the upper process configuration screen, wherein the detailed information includes a measuring instrument name or a valve name and corresponding status data and an identification timestamp;

[0086] A picture recording module is configured to determine the complete frame and the difference frame of the production status picture based on the detailed information of the overall target based on the video compression technology;

[0087] The audit playback module is configured to obtain the requested playback time, determine the complete frame closest to the requested playback time as the initial complete frame, construct the initial screen of the production status based on the initial complete frame, and play back the production status according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame.

[0088] Through this device, accurate audit and efficient playback of production status can be achieved. First, the configuration interface construction module ensures the accurate construction and image acquisition of the upper process configuration interface, providing a basis for subsequent audit playback. The target detection and binding module uses advanced target detection technology to accurately identify and bind key elements such as measuring instruments and valves, so that each overall target contains its name and status parameters, greatly improving the accuracy and efficiency of the audit. The information identification and recording module further refines the information of each overall target through optical character recognition technology, including detailed names, status data, and identification timestamps, providing comprehensive data support for audit playback. The screen recording module intelligently determines the complete frame and difference frame of the production status screen based on video compression technology, effectively reducing the burden of data storage and transmission. Finally, the audit playback module quickly locates the initial complete frame according to the requested playback time, and plays back the subsequent production status in chronological order, allowing users to intuitively understand the various links and status changes in the production process.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

[0090] The system provided in the above embodiment is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be decomposed or combined. For example, the modules in the above embodiment can be combined into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not regarded as improper limitations of the present invention.

[0091] Those skilled in the art should be able to appreciate that the modules and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software or a combination of the two, and the programs corresponding to the software modules and method steps can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs or any other form of storage medium known in the technical field. In order to clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are performed in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

Claims

1. A method for production status audit playback, characterized in that: include: Construct the upper process configuration interface, and obtain the image displayed on the current upper computer configuration interface to determine it as the upper process configuration screen; Using target detection technology, based on the upper process configuration screen, measuring instruments and valves are identified as targets, and the measuring instrument name or valve name and status parameters are bound as an overall target; Through optical character recognition technology, information recognition is performed on each overall target to determine detailed information of each overall target in the upper process configuration screen, wherein the detailed information includes the measuring instrument name or valve name and the corresponding status data and recognition timestamp; Based on video compression technology, determine the complete frame and difference frame of the production status according to the detailed information of the overall target; The requested playback time is obtained, the complete frame closest to the requested playback time is determined as the initial complete frame, the initial screen of the production state is constructed according to the initial complete frame, and the production state is played back according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame.

2. The method for production status audit playback according to claim 1, characterized in that: Build the upper process configuration interface, including: Obtaining an industrial production execution document, analyzing the industrial production execution document, and determining the installation position and connection relationship of each measuring instrument and valve; Using configuration software, layout each measuring instrument and valve based on the installation position and connection relationship to obtain an upper process configuration interface template; Real-time data of the production status is obtained, and the real-time data is updated and displayed on the upper process configuration interface template, a virtual interface corresponding to the production status is constructed, and an upper process configuration interface is obtained.

3. The method for production status audit playback according to claim 1, characterized in that: Through optical character recognition technology, information recognition is performed on each overall target to determine the detailed information of each overall target in the upper process configuration screen, including: The target is cropped on the upper process configuration screen that has been identified to obtain an image containing only the target, and the cropped image is grayed and denoised; Input the processed image into an optical character recognition engine, perform character recognition on the processed image, and obtain status data of each overall target; Determine the current information recognition time as the recognition timestamp, and associate the recognition timestamp with the status data; Determine detailed information of each overall target based on the associated identification timestamp and status data, and store the detailed information in an information database; The detailed information is stored in a list format.

4. The method for production status audit playback according to claim 3 is characterized in that: The measuring instruments include: a temperature gauge, a pressure gauge and a flow meter; The state data includes a temperature value of a thermometer, a pressure value of a pressure gauge, a flow value of a flow meter, and a valve switch state or a valve opening percentage of a valve.

5. The method for production status audit playback according to claim 1, characterized in that: Based on video compression technology, the complete frame and difference frame of the production status are determined according to the detailed information of the overall target, including: Recording a complete frame of each upper process configuration screen at a first preset time interval; Determine at intervals of a second preset time whether there is a difference between the overall target detailed information of the upper process configuration screen of the current frame and the overall target detailed information of the previous frame, and if there is a difference, record the upper process configuration screen of the current frame as a difference frame; If there is no difference, no difference frame is recorded.

6. The method for production status audit playback according to claim 5, characterized in that: Based on the video compression technology, the complete frame and the difference frame of the production status are determined according to the detailed information of the overall target, and further comprising: when recording a complete frame, determining the number of difference frames recorded within the time interval between the complete frame to be recorded and the last complete frame, and determining whether to correct the first preset time according to the number of records; If the number of recording times is less than or equal to the preset number of recording times, the first preset time is not corrected, and a complete frame is recorded according to the first preset time; If the number of recording times is greater than the preset number of recording times, the first preset time is corrected, and a complete frame is recorded according to the corrected first preset time.

7. The method for production status audit playback according to claim 6, characterized in that: When correcting the first preset time, determining the difference between the number of records and the preset number of records, determining a time correction coefficient according to the difference in number, and correcting the first preset time based on the time correction coefficient; Presetting a first preset number of times difference and a second preset number of times difference, wherein the first preset number of times difference is smaller than the second preset number of times difference; Determine a time correction coefficient according to a relationship between the number difference, the first preset number difference, and the second preset number difference; If the number difference is less than the first preset number difference, the time correction coefficient is set to the first preset time correction coefficient A1, and the corrected first preset time is T×A1; If the number difference is greater than or equal to the first preset number difference, and the number difference is less than the second preset number difference, the time correction coefficient is set to the second preset time correction coefficient A2, and the corrected first preset time is T×A2; If the number difference is greater than or equal to the second preset number difference, the time correction coefficient is set to the third preset time correction coefficient A3, and the corrected first preset time is T×A3; Wherein, T represents the first preset time, and 1<A1<A2<A3<1.

2.

8. The method for production status audit playback according to claim 7, characterized in that: At every second preset time interval, it is determined whether the overall target detailed information of the upper process configuration screen of the current frame is different from the overall target detailed information of the previous frame, including: Obtaining the overall target detailed information of the upper process configuration screen of the current frame and the overall target detailed information of the previous frame from the information database; The overall target detailed information of the upper process configuration screen of the current frame is compared with the overall target detailed information of the previous frame. If the name of each measuring instrument or valve name and the corresponding status data are the same, it is determined that there is no difference; If there are differences in the measuring instrument name or valve name and the corresponding status data, it is determined that there is a difference.

9. The method for production status audit playback according to claim 1, characterized in that: Obtain the requested playback time, determine the complete frame closest to the requested playback time as the initial complete frame, construct the initial screen of the production status according to the initial complete frame, and play back the production status according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame, including: Obtaining a requested playback time, determining a nearest complete frame according to the requested playback time, and setting the frame as an initial complete frame; Constructing an initial screen of the upper process configuration of the production status according to the initial complete frame, wherein the initial screen includes the initial status of the measuring instrument and the valve; Starting from the time point corresponding to the initial complete frame, subsequent complete frames and difference frames are read in time order, and played back in time order of the complete frames and difference frames.

10. A device for production status audit playback, used for applying the production status audit playback method according to any one of claims 1 to 9, characterized in that: include: The configuration interface construction module is configured to construct an upper process configuration interface and obtain the image displayed on the current upper computer configuration interface to determine it as the upper process configuration screen; The target detection binding module is configured to use the target detection technology to identify the measuring instrument and the valve as targets based on the upper process configuration screen, and bind the measuring instrument name or the valve name and the state parameter as an overall target; An information identification and recording module is configured to perform information identification on each overall target through optical character recognition technology to determine detailed information of each overall target in the upper process configuration screen, wherein the detailed information includes a measuring instrument name or a valve name and corresponding status data and an identification timestamp; A picture recording module is configured to determine the complete frame and the difference frame of the production status picture according to the detailed information of the overall target based on the video compression technology; The audit playback module is configured to obtain the requested playback time, determine the complete frame closest to the requested playback time as the initial complete frame, construct the initial screen of the production status based on the initial complete frame, and play back the production status according to the time sequence of the complete frames and difference frames subsequent to the initial complete frame.

Images