Digital tracking method and system for hot-rolled finished steel plate

Abstract

The application discloses a kind of digital tracking method and system of hot-rolled finishing steel plate, comprising the following steps: S1, when flying shear cuts a steel plate, a steel plate digital object is generated;S2, judge whether the steel plate is valid cutting, if yes, then enter step S3, if no, then return to step S1;S3, a unique ID number is generated by tracking PLC with timestamp, and correspond to the steel plate digital object;S4, periodically process the steel plate digital object, event processing the steel plate digital object;S5, the tracking PLC sends the steel plate digital object to L2 system archiving.The application generates a digital steel plate object after flying shear cutting, dynamically corresponds the steel plate object with the physical steel plate through PLC equipment, realizes reliable steel plate tracking to solve the traditional tracking problem.

Description

TECHNICAL FIELD

[0001] The present application relates to hot-rolled finished steel plate technology, more particularly, to a digital tracking method and system for hot-rolled finished steel plate. BACKGROUND

[0002] In the production process of the existing steel enterprise 2050 hot-rolled high-strength steel flatness unit, after the plate cutting line of the medium plate cuts the steel plate and stacks it into a bundle, the presence or absence of the steel plate is determined by the detection of the steel plate passing through the equipment through the signals such as the grating and the limit on the roller and the equipment, so as to make a simple tracking.

[0003] The grating, limit and other detection devices are installed in front of the process equipment, and after the material is detected, the process equipment sets parameters according to the pre-stored material information. However, the problem of this method is that the detection devices such as grating and limit often produce false signals due to installation, maintenance and other reasons, resulting in errors in the entire tracking, and often requiring manual intervention. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the present application is to provide a digital tracking method and system for hot-rolled finished steel plate, to generate a digital steel plate object after the flying shear is cut, and to dynamically correspond the steel plate object with the physical steel plate through the PLC device, to realize reliable steel plate tracking and solve the traditional tracking problem.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] The present application provides a digital tracking method for hot-rolled finished steel plate, comprising the following steps:

[0007] S1, when a flying shear cuts a steel plate, a steel plate digital object is generated;

[0008] S2, it is judged whether the steel plate is a valid cut, if yes, step S3 is entered, if not, step S1 is returned;

[0009] S3, a unique ID number is generated by the tracking PLC with a time stamp, and the steel plate digital object is corresponded;

[0010] S4, the steel plate digital object is periodically processed, and the steel plate digital object is event processed;

[0011] S5, the tracking PLC sends the steel plate digital object to the L2 system for archiving.

[0012] Preferably, the data structure of the steel plate digital object includes total number of steel plates in the production line, coil number, flying shear cutting number of the same coil, position number of the steel plate in the stack, stack marking, time of stacking, steel plate length, steel plate width, steel plate thickness, long plate marking, Doppler length measurement value of the plate profiler, position of the steel plate head on the parent coil, counting number of the ink jet, quality marking, quality information, maximum IU value in the detection point, average width of detection, length direction straight edge, width direction straight edge, maximum straight edge, maximum wave height, head warping, head buckling, tail warping, tail buckling, camber value, steel plate speed, steel plate head position, steel plate tail position, plate profiler inspection length, steel plate position in the ink jet, steel plate position in the plate profiler, steel plate position in the manual inspection, steel plate position in the stacking table, steel plate passing through the belt signal and steel plate passing through the stack signal.

[0013] Preferably, the parent coil information of the steel plate is selected from the information queue of the L2 system and filled into the steel plate digital object.

[0014] Preferably, in the step S4, the periodic processing of the steel plate digital object specifically includes:

[0015] The dynamic data of the steel plate digital object is refreshed by using the cycle of the tracking PLC.

[0016] Preferably, in the step S4, the event processing of the steel plate digital object specifically includes:

[0017] The accumulated error generated by the periodic processing is corrected by the event processing generated by the device signal.

[0018] Preferably, the steel plate digital object has a data table generation method and a data table deletion method.

[0019] Preferably, the data table generation method specifically includes:

[0020] When the effective cutting signal is generated or the virtual steel plate is generated by the manual through the screen, the steel plate digital object of the current steel plate is generated by the data table generation method, and the steel plate digital object follows the current steel plate for life.

[0021] Preferably, the data table deletion method specifically includes:

[0022] When the tail cutting waste of the steel plate occurs, the steel plate digital object is deleted by the data table deletion method or deleted by the manual through the screen.

[0023] The second aspect of the present application provides a digital tracking system for hot-rolled finished steel plates, which includes:

[0024] A flying shear PLC provides a cutting signal of the flying shear.

[0025] A tracking PLC receives a shearing signal of the flying shear PLC and provides a shearing length data, and also receives a feedback signal of the tracking roller;

[0026] The digital tracking method of the hot-rolled finished steel plate is realized by the digital tracking system of the hot-rolled finished steel plate.

[0027] The digital tracking method and system of the hot-rolled finished steel plate provided by the application solve the problems of frequent tracking failure and signal loss in the conventional tracking method of detecting whether the steel plate exists by using equipment, and the digital steel plate object is digitized as the physical steel plate, which is convenient for archiving and saving, and the data of the digital steel plate object centrally contain various production data and attributes of the corresponding physical steel plate, which is convenient for subsequent backtracking and provides a complete data basis for the production of big data. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a flowchart of the digital tracking method of the application;

[0029] Figure 2 is an architecture diagram of the digital tracking system of the application;

[0030] Figure 3 is a layout diagram of the digital tracking system of the application. DETAILED DESCRIPTION

[0031] In order to better understand the above technical solutions of the application, the technical solutions of the application will be further described below in combination with the drawings and embodiments.

[0032] In combination with Figure 1 the application provides a digital tracking method of a hot-rolled finished steel plate, which includes the following steps:

[0033] S1, when a flying shear shears a steel plate, a steel plate digital object is generated, the data structure of which is defined in advance, and a unique ID number is generated as a global unique handle, which is convenient for data association and data indexing and backtracking in any state;

[0034] S2, it is judged whether the steel plate is valid shearing, if yes, step S3 is entered, and if not, step S1 is returned;

[0035] S3, a unique ID number is generated by a tracking PLC using a time stamp, and corresponds to a steel plate digital object;

[0036] S4, a steel plate digital object is periodically processed, and a steel plate digital object is event processed;

[0037] S5, a tracking PLC sends a steel plate digital object to an L2 system for archiving.

[0038] The steel plate digital object includes the following data structure:

[0039]

[0040]

[0041] The mother roll information of the current steel plate is selected from an information queue of an L2 system and filled into the steel plate digital object.

[0042] In step S4, the periodic processing of the steel plate digital object is specifically:

[0043] According to the running speed of the equipment, the dynamic data (physical position, current speed, etc.) of the steel plate digital object is refreshed by using the period of the tracking PLC. When the current steel plate enters the process equipment area, the relevant parameters in the steel plate digital object are sent to the current process equipment as process settings.

[0044] In step S4, the event processing of the steel plate digital object is specifically:

[0045] The grating and limit of the production line will generate a signal event, and when the current steel plate passes through the grating and limit detection point, the dynamic data in the data table of the corresponding steel plate digital object will be corrected by using the physical position of these grating and limit signals, such as the position value and the length value, so as to eliminate the cumulative error that may be generated during the periodic processing.

[0046] The difference between this correction method and the traditional method is that even if the grating and limit signal of the production line has a problem, only the tracking position signal is not corrected, and the tracking will not fail.

[0047] The steel plate digital object itself has a data table generation method and a data table deletion method.

[0048] The data table generation method is specifically:

[0049] When the effective cutting signal is generated or the virtual steel plate is generated by the manual through the screen, the steel plate digital object of the current steel plate is generated (constructed) by the data table generation method, and the steel plate digital object follows the current steel plate for life.

[0050] The data table deletion method is specifically:

[0051] When the tail cutting waste of the steel plate occurs, the steel plate digital object is deleted by the data table deletion method, or the deletion is instructed by the manual through the screen.

[0052] In combination with Figure 2 and Figure 3 , the present application also provides a digital tracking system for hot-rolled finished steel plates, which comprises:

[0053] A flying shear PLC 1 provides a flying shear cutting signal;

[0054] The tracking PLC 2 receives the shearing signal of the flying shear PLC 1 and provides the shearing length data, and also receives the feedback signal of the tracking roller 3.

[0055] The digital tracking system for hot-rolled and finished steel plates realizes the digital tracking method for hot-rolled and finished steel plates.

[0056] The application adopts the object-oriented tracking method, the principle is to take the cross-cut produced plate as a digital steel plate object, the object has its own attribute and method, solves the steel plate tracking difficulty problem, greatly improves the stability, and has wide application prospect.

[0057] Those skilled in the art of the present technology should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation on the present application, as long as the changes and modifications of the above described embodiments are within the scope of the spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A digital tracking method for hot-rolled finished steel plates, characterized in that, Includes the following steps: S1. When the flying shear cuts a steel plate, a steel plate digital object is generated. S2. Determine whether the steel plate is effectively sheared. If yes, proceed to step S3; otherwise, return to step S1. S3. The tracking PLC generates a unique ID number using a timestamp, which corresponds to the digital object of the steel plate; S4. Periodically process the steel plate digital object, and handle the steel plate digital object through events; S5. The tracking PLC sends the digital object of the steel plate to the L2 system for archiving. The data structure of the steel plate digital object includes the total number of steel plates on the production line, roll number, flying shear shear number of the same roll, steel plate position number in the stack, stacking mark, stacking time, steel plate length, steel plate width, steel plate thickness, long plate mark, Doppler length measurement value of the plate shaper, position of the steel plate head on the master roll, printer counter number, quality mark, quality information, maximum IU value at the inspection point, average inspection width, straight edge in the length direction, straight edge in the width direction, maximum straight edge, maximum wave height, head curl, tail curl, tail curl, sickle bend value, steel plate speed, steel plate head position, steel plate tail position, plate shaper inspection length, steel plate position on the printer, steel plate position on the plate shaper, steel plate position in manual inspection, steel plate position on the stacking platform, steel plate passing belt signal, and steel plate passing stacking signal. The master coil information of the steel plate is selected from the information queue of the L2 system and populated into the digital object of the steel plate. In step S4, the periodic processing of the steel plate digital object specifically involves: By utilizing the cycle of the tracking PLC, the dynamic data of the steel plate digital object is refreshed. In step S4, the event handling of the steel plate digital object specifically involves: The grating and limit signals generated on the production line will cause the current steel plate to pass through the grating and limit detection points. The physical position of these grating and limit signals will be used to correct the dynamic data in the data table of the corresponding steel plate digital object, thereby eliminating the cumulative error caused by the periodic processing.

2. The digital tracking method for hot-rolled finished steel plates according to claim 1, characterized in that: The steel plate digital object has a method for generating a data table and a method for deleting a data table.

3. The digital tracking method for hot-rolled finished steel plates according to claim 2, characterized in that: The method for generating the data table is as follows: When a valid shear signal is received or when a virtual steel plate is generated manually through the image, the current steel plate digital object is generated using the data table generation method. The steel plate digital object follows the current steel plate for life.

4. The digital tracking method for hot-rolled finished steel plates according to claim 2, characterized in that: The method for deleting the data table is as follows: When a steel plate is scrapped at the tail end, the steel plate digital object can be deleted using the data table deletion method, or it can be deleted manually by issuing a command through the screen.

5. A digital tracking system for hot-rolled finished steel plates, characterized in that, include: The flying shear PLC provides the cutting signal for the flying shear; The tracking PLC receives the shearing signal from the flying shear PLC, provides shearing length data, and also receives the feedback signal from the tracking roller conveyor. The digital tracking system for hot-rolled finished steel plates implements the digital tracking method for hot-rolled finished steel plates as described in any one of claims 1-4.

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