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

Abstract

The invention discloses a digital tracking method and system for a hot-rolled finishing steel plate, and the method comprises the following steps: S1, generating a steel plate digital object when a flying shear shears a steel plate; s2, whether the steel plate is effectively sheared or not is judged, if yes, the step S3 is executed, and if not, the step S1 is executed again; s3, the tracking PLC generates a unique ID number through a timestamp, and the ID number corresponds to the steel plate digital object; s4, periodically processing the steel plate digital object, and event-processing the steel plate digital object; and S5, the tracking PLC sends the steel plate digital object to an L2 system for filing. A digital steel plate object is generated by a steel plate generated after shearing of the flying shear, the steel plate object corresponds to a real steel plate dynamically through PLC equipment, reliable steel plate tracking is achieved, and the traditional tracking problem is solved.

Description

Technical Field

[0001] The invention relates to a hot-rolled finished steel plate technology, and more specifically to a digital tracking method and system for hot-rolled finished steel plates. Background Art

[0002] The existing steel enterprises' 2050 hot-rolled high-strength steel leveling unit's middle plate cross-cutting line shears the steel plates and stacks them into bundles. During the production process, the presence of the steel plates is determined by the grating, limit and other signals on the rollers and equipment. The equipment detects the steel plates and uses this to do simple tracking.

[0003] Install gratings, limit switches and other detection equipment in front of the process equipment. After detecting the material, the process equipment sets parameters according to the pre-stored material information. However, the problem with this method is that gratings, limit switches and other detection equipment often generate false signals due to installation, maintenance and other reasons, resulting in errors in the entire tracking process, and often requiring shutdown and manual intervention. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a digital tracking method and system for hot-rolled finished steel plates, which generates a digital steel plate object from the steel plate produced after flying shear shearing, and dynamically matches the steel plate object with the physical steel plate through a PLC device, thereby achieving reliable steel plate tracking and solving traditional tracking problems.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A first aspect of the present invention provides a digital tracking method for hot-rolled finished steel plates, comprising the following steps:

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

[0008] S2, determine whether the steel plate is effectively sheared, if yes, proceed to step S3, if no, return to step S1;

[0009] S3, the tracking PLC generates a unique ID number using a timestamp and corresponds to the steel plate digital object;

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

[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 the total number of steel plates in the working line, the roll number, the flying shear cutting number of the same roll, the position number of the steel plate in the stack, the stacking mark, the time of stacking, the length of the steel plate, the width of the steel plate, the thickness of the steel plate, the long plate mark, the Doppler length measurement value of the plate shape meter, the position of the steel plate head on the parent roll, the counting number of the inkjet printer, the quality mark, the quality information, the maximum IU value in the detection point, the average detection width, the straight edge in the length direction, the straight edge in the width direction, the maximum straight edge, the maximum wave height, the head warp, the head buckle, the tail warp, the tail buckle, the sickle bend value, the steel plate speed, the position of the steel plate head, the position of the steel plate tail, the plate shape meter inspection length, the steel plate position on the inkjet printer, the steel plate position on the plate shape meter, the steel plate position on the manual inspection position, the steel plate position on the stacking platform, the steel plate passing the belt signal and the steel plate passing the stacking signal.

[0013] Preferably, the mother roll 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 step S4, the periodic processing of the steel plate digital object is specifically as follows:

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

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

[0017] The accumulated error generated when the event processing generated by the device signal corrects the periodic processing.

[0018] Preferably, the steel plate digital object has a method for generating a data table and a method for deleting a data table.

[0019] Preferably, the method for generating the data table is specifically as follows:

[0020] When a valid cutting signal is given or a virtual steel plate is manually generated through a picture, 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 throughout its life.

[0021] Preferably, the method for deleting the data table is specifically as follows:

[0022] When the tail of the steel plate is cut to waste, the steel plate digital object is deleted by the data table deletion method, or manually by issuing a command through the screen to delete it.

[0023] A second aspect of the present invention provides a digital tracking system for hot-rolled finished steel plates, comprising:

[0024] Flying shear PLC, providing shearing signal for flying shear;

[0025] Tracking PLC, receiving the shearing signal of the flying shear PLC, providing shearing length data, and also receiving the 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 for hot-rolled finished steel plates provided by the present invention solve the problems of tracking failure, signal loss, etc. that often occur in the traditional tracking method of using equipment to detect the presence of steel plates. At the same time, the digital steel plate object, as the digitization of the physical steel plate, is convenient for archiving and preservation. Since the data set of the digital steel plate object contains various production data and attributes of the corresponding physical steel plate, it is convenient for subsequent backtracking and also provides a complete data foundation for the big data application of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic flow chart of the digital tracking method of the present invention;

[0029] Figure 2 It is a schematic diagram of the architecture of the digital tracking system of the present invention;

[0030] Figure 3 It is a schematic diagram of the arrangement of the digital tracking system of the present invention. DETAILED DESCRIPTION

[0031] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Combination Figure 1 As shown, the present invention provides a digital tracking method for hot-rolled finished steel plates, comprising the following steps:

[0033] S1. When the flying shear cuts a steel plate, a steel plate digital object is generated, whose data structure is defined in advance, and a unique ID number is generated as a global unique handle to facilitate data association and data indexing and backtracking in any state;

[0034] S2, determine whether the steel plate is effectively sheared, if yes, proceed to step S3, if no, return to step S1;

[0035] S3, the tracking PLC generates a unique ID number using a timestamp and corresponds to the steel plate digital object;

[0036] S4, periodically process the steel plate digital object, and event process the steel plate digital object;

[0037] S5. Tracking PLC sends the steel plate digital object to the L2 system for archiving.

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

[0039]

[0040]

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

[0042] In step S4, the steel plate digital object is processed periodically as follows:

[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 tracking the cycle of the 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 steel plate digital object is specifically:

[0045] The gratings and limits of the operating line will generate signal events. When the current steel plate passes through the grating and limit detection points, the physical positions of these gratings and limit signals in the corresponding steel plate digital object will be used to correct the dynamic data in the data table of the steel plate digital object, such as position value and length value, to eliminate the cumulative errors that may occur during periodic processing.

[0046] The difference between this correction method and the traditional one is that even if there is a problem with the grating or limit signal of the operating line, simply not correcting the tracking position signal will not cause tracking failure.

[0047] The steel plate digital object itself has methods for generating and deleting data tables.

[0048] The specific method for generating a data table is:

[0049] When a valid cutting signal is used or a virtual steel plate is manually generated through a picture, a steel plate digital object of the current steel plate is generated (constructed) by generating a data table, and the steel plate digital object follows the current steel plate throughout its life.

[0050] The specific method for deleting a data table is:

[0051] When the tail of the steel plate is cut to waste, the steel plate digital object is deleted by deleting the data table, or by manually issuing a command through the screen to delete it.

[0052] Combination Figure 2 and Figure 3 As shown, the present invention also provides a digital tracking system for hot-rolled finished steel plates, comprising:

[0053] Flying shear PLC1, providing shearing signal for flying shear;

[0054] Tracking PLC2 receives the shearing signal from the flying shear PLC1, provides shearing length data, and also receives the feedback signal from the tracking roller 3.

[0055] The digital tracking method of the hot-rolled finished steel plate of the present invention is realized by the digital tracking system of the hot-rolled finished steel plate of the present invention.

[0056] The present invention adopts an object-oriented tracking method, the principle of which is to treat the plate produced by cross-cutting as a digital steel plate object. The object has its own properties and methods, which solves the problem of difficult steel plate tracking, greatly improves stability, and has broad prospects for promotion and application.

[0057] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A digital tracking method for hot-rolled finished steel plates, characterized in that: The following steps are involved: 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, if no, return to step S1; S3, the tracking PLC generates a unique ID number using a timestamp and corresponds to the steel plate digital object; S4, periodically processing the steel plate digital object and event processing the steel plate digital object; S5. The tracking PLC sends the steel plate digital object to the L2 system for archiving.

2. The digital tracking method for hot-rolled finished steel plate according to claim 1, characterized in that: The data structure of the steel plate digital object includes the total number of steel plates in the working line, the roll number, the flying shear cutting number of the same roll, the position number of the steel plate in the stack, the stacking mark, the time of stacking, the length of the steel plate, the width of the steel plate, the thickness of the steel plate, the long plate mark, the Doppler length measurement value of the plate shape meter, the position of the steel plate head on the mother roll, the counting number of the inkjet printer, the quality mark, the quality information, the maximum IU value in the detection point, the average detection width, the straight edge in the length direction, the straight edge in the width direction, the maximum straight edge, the maximum wave height, the head warp, the head buckle, the tail warp, the tail buckle, the sickle bend value, the steel plate speed, the position of the steel plate head, the position of the steel plate tail, the plate shape meter inspection length, the steel plate position on the inkjet printer, the steel plate position on the plate shape meter, the steel plate position on the manual inspection position, the steel plate position on the stacking platform, the steel plate passing the belt signal and the steel plate passing the stacking signal.

3. The digital tracking method for hot-rolled finished steel plate according to claim 2, characterized in that: The mother roll information of the steel plate is selected from the information queue of the L2 system and filled into the steel plate digital object.

4. The digital tracking method for hot-rolled finished steel plate according to claim 1, characterized in that: In step S4, the periodic processing of the steel plate digital object is specifically as follows: The dynamic data of the steel plate digital object is refreshed by using the cycle of the tracking PLC.

5. The digital tracking method for hot-rolled finished steel plate according to claim 1, characterized in that: In step S4, the event processing of the steel plate digital object is specifically as follows: The accumulated error generated when the event processing generated by the device signal corrects the periodic processing.

6. The digital tracking method for hot-rolled finished steel plate 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.

7. The digital tracking method for hot-rolled finished steel plate according to claim 6, characterized in that: The method for generating a data table is specifically as follows: When a valid cutting signal is given or a virtual steel plate is manually generated through a picture, 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 throughout its life.

8. The digital tracking method for hot-rolled finished steel plate according to claim 6, characterized in that: The method for deleting a data table is specifically as follows: When the tail of the steel plate is cut to waste, the steel plate digital object is deleted by the data table deletion method, or manually by issuing a command through the screen to delete it.

9. A digital tracking system for hot-rolled finished steel plates, characterized in that: include: Flying shear PLC, providing shearing signal for flying shear; Tracking PLC, receiving the shearing signal of the flying shear PLC, providing shearing length data, and also receiving the feedback signal of the tracking roller; The digital tracking system for hot-rolled finished steel plates is used to implement the digital tracking method for hot-rolled finished steel plates as claimed in any one of claims 1 to 8.

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