KR100717508B1 - A data acquisition and analyzing system and its method for rcm - Google Patents

Abstract

The present invention collects the real-time operating data of the hot coil operated in the rolling mill in seconds and compares and analyzes the stored sheet data to maintain the quality of the rolled product homogeneously, and performs rolling times appropriately to improve productivity. Collect the requirements of the customer before the operation, the data source assembly 21, the output value measured by the measuring instrument attached to the rolling mill during the operation is collected and stored, and converts the analog signal of the data source assembly 21 into a digital signal And a data converter 22 for transmitting to the data collection server, a data collection server 25 for classifying the value received from the data converter 22 in units of 1 second for data filtering, and data purification processing. Application server 23 in which data converted to actual values by a process (filtering) is stored, and an in-house infrastructure system for work orders and production registrations. A plate visualization system 24, a database 26 in which the values of the data collection server 25 are stored, and a data visualization and data analyzer 27 for visualizing and analyzing actual values by the application server 23. The present invention relates to a data storage and analysis system using RCM and a method thereof.

RCM, Reciprocating Rolling Process, Increased Productivity (Ton / hr), Real-Time Data

Description

A data acquisition and analyzing system and its method for RCM}

1 is a schematic view of a conventional mill equipment.

Figure 2 is a graph showing the difference in the maximum rolling speed of the mill according to the operator.

Figure 3 is a schematic diagram of a data storage, analysis system using the RCM of the present invention.

4 is a schematic diagram illustrating a rolling mill installed with an X-ray for measuring the thickness of a hot coil and storing real-time data according to an embodiment of the present invention.

5 is a graph displayed on the monitor of the user through real-time monitoring.

Figure 6 is a flow chart showing the storage, analysis generated from the rolling mill peripheral measuring instrument through a conversion process.

<Description of the symbols for the main parts of the drawings>

C. Hot Coil 10. Rolling Mill 11,15. Tension reel

12, 14. Deflector Roll 13, 14. Work Roll

21. Data source collection 22. Data converters

23. Application Server 24. Plate System 25. Data Collection Server

26. Database 27. Data visualization and data analysis workers

28. Data Acquisition and Storage Phase 29. Data Rearrangement and Data Response Phase

101. Rolling Mill 111,115. Tension Reel 112,114. Deflector roll

113, 114.Workroll

The present invention is to store and analyze the work of the hot coil (retracted / drawn out) to the rolling mill in the reciprocating rolling process, more specifically, the plated by storing the actual operating data of the hot coil operating in the rolling mill in seconds The present invention relates to a data storage, analysis system and method using RCM for comparing and analyzing the data to maintain the homogeneous quality of the rolled product and to perform the number of rollings appropriately to improve productivity.

1 is a schematic diagram of a conventional rolling mill equipment, as shown in FIG. 1, the hot coil is rolled through a deflector roll and a hot coil wound on a tension reel, and the transferred hot coil is a work roll ( Rolling is carried out by a work roll, and the first rolled hot coil is again wound on the exit tension reel through a deflector roll, and the first rolled hot coil passes through the dedirector roll in the opposite direction. The rolling operation is then repeatedly performed on the work roll.

Each rolling count mentioned above is called the number of passes.

In the rolling operation, the operation is performed by setting the number of passes, adjustment of thickness of the entry and exit, distribution of reduction ratio, front and rear tension control, etc., by a skilled worker to make accurate thickness and flatness desired by the customer. In addition to the above-mentioned setting, the main factors affecting the rolling operation include width, work roll diameter, rolling force, roll interval, bending, DIF position, rolling speed, rolling current, and the like.

Figure 2 is a graph showing the difference in operation according to the maximum rolling speed of the rolling mill.

The rolling operation was performed by dividing into three sets of A, B, and C by comparing the maximum rolling speed when rolling was performed after supplying the same hot coil.

As a result, Group A mpm (meters per minute) is average 735mpm, Group B average 789mpm and Group C 694mpm. This is because the rolling operation conditions change and also show a great difference depending on the skill of the operator.

It is only the result that the hourly productivity (ton / hr) produced under the same conditions as described above is merely a result, and the accurate recording of the whole work process on this depends on the operation of the instrument panel at the time of operation, and the recording is left in real time. Later, only a representative value is recorded for some things the worker remembers, which makes it difficult for the manager to identify the cause and prepare countermeasures.

        The documented work standards that have been established and educated and operated in the past have had problems in that it is difficult to comply with and revise them in the absence of the necessary real-time data.

The present invention is provided to solve the above-mentioned problems, by forming a measuring device in front and rear of the work roll for rolling the hot coil, and a system for storing and analyzing the values generated in the measuring device, Stabilization of operating conditions by storing and analyzing data generated during rolling in real time, and standard productivity by reducing the deviation between operators, increasing rolling speed, reducing rolling time and improving productivity. The aim is to provide a data storage, analysis system and method using RCM to demonstrate maximum rolling productivity above and to ensure stable operating conditions and continuous monitoring and improvement of standards compliance.

The present invention collects the customer's requirements before the rolling operation, and the data source assembly 21, the output value measured by the measuring instrument attached to the rolling mill during the operation is collected and stored;

After converting the analog signal of the data source assembly 21 into a digital signal, the data converter 22 for transmitting to the data acquisition server, and the value received from the data converter 22 in 1 second unit for data filtering The data collection server 25 to classify, the application server 23 which stores the data converted into the actual value by the data processing process (filtering) of the data, and the board system which is an in-house infrastructure system for work order and production registration. (24), a database (26) in which the values of the data collection server (25) are stored, and a data visualization and data analyzer (27) for visualizing and analyzing the actual values by the application server (23). The present invention relates to a data storage and analysis system using RCM.

Hereinafter, with reference to the accompanying drawings for the data storage, analysis system using the RCM of the hot coil introduced into the rolling mill 10 according to the present invention will be described as follows.

3 is a schematic diagram of a data storage and analysis system using the RCM of the present invention.

As shown in FIG. 3, the value measured by the measuring instrument separately provided in the rolling mill 10 of FIG. 4 is output as an electrical signal, transmitted to the data source assembly 21, and the output value is transmitted to the data source assembly ( 21) are collected and stored.

In the data source assembly 21, before the operator collects the customer's requirements from the plate system 24 and inputs the work roll diameter and the width of the raw material in the throttle plate, the operation is performed separately. Using the 14 data measured by the instrument, unique data such as the number of passes, the thickness of each step, and the tension are stored.

In addition to the work roll diameter and the width of the raw material by the operator, the values measured by the system include the rolling direction, the side thickness, the exit thickness, the width, the work roll diameter, the rolling force, the entrance tension, the exit tension, and the roll interval (worker side and motor side). ), Work roll bending degree, work roll relative position, raw material loader operation state (Drad Uncoilder Mode), exit tension reel mode (Delivery Mandrel Mode), rolling speed, rolling current.

The operator inputs the work roll diameter and the width of the raw materials as usual, and when the work is performed, the data are automatically stored and processed in the database 26 of the collection server 25, and used as information for future improvement and standardization. It is changing.

The current and voltage difference, which is an analog signal, are collected by the data source assembly 21, and then converted into digital data by the data converter 22 and transmitted to the data collection server 25 through the in-house intranet, and then the data collection server 25. ) Stores the data collected from each data source assembly 21 by 16 items per second in real time by using a filtering method that is pre-verified and determined by the current and voltage difference ranges, and leaves a step for informatization. Put

4 is a schematic diagram illustrating a rolling mill installed with an X-ray to measure the thickness of a hot coil and to store real-time data, according to an embodiment of the present invention.

As shown in FIG. 4, a voltage difference is generated through X-rays to measure the thickness of the hot coil after the hot coil is drawn in and drawn out from the rolling mill 10, and the voltage difference is transmitted to the data source assembly 21 to be rolled. The analog data related to is collected and its output value is 0 to 10 volts.

Filtering on thickness can be applied as follows.

As shown in the above table, the thickness information is 0Volt ~ 10Volt and its output is generated from X-ray source, and the output characteristic is one-dimensional behavior (the actual occurrence value of the corresponding data source assembly is 0 ~). Since the relation of 6.4mm is shown, a and b corresponding to the intercept can be obtained from the first function y = ax -b.).

The measurement range of the actual steel plate thickness is 0 ~ 6.4mm and is measured in advance.

However, the data converter recognizes 0 Volt as 0 and transmits 10Volt to 2 ²⁴ (= 16777216). In other words, if the value sent to the data converter is 5Volt (actually 3.2mm), the value sent to the data acquisition server (DAS) will be 12582912, and ultimately when applying the filtering technique to convert it into a human perceivable number. Will be recorded as a thickness of 3.2mm.

So in y = ax-b

Slope a = (6.4 -0) / (224-223) and

Since the intercept b = 6.4-0 = 6.4, the regression equation used

(6.4 - 0) / (2 24 - 2 23) * (B) -6.4

In this case, as the B value, the value transmitted to the data converter 22 is applied, and the resultant value is finally stored.

In the above embodiment, the measurement of the thickness and the filtering using the same have been described. The measurement of the remaining 14 items other than the thickness value is performed by each gauge separately, and each gauge is a measuring instrument capable of representing characteristics of voltage differences. It is attached separately. In other words, it is measured by connecting all the unique characteristics that transform an operating state, that is, a distance (displacement) or pressure, etc. into an electrical signal.

Rolling direction, width, work roll diameter, rolling force, entry tension, exit tension, roll spacing (worker side and motor side), work roll bending degree, work roll bending position, Raw Unloader Mode, Delivery Mandrel Mode, Rolling Speed, Rolling Current, etc. are processed in the same way, and the values (data range, actual value, filtering, etc.) are shown in Table 1. Same as

When the data generated as described above is collected through the converter 22, the data undergoes the following information processing process (filtering).

The implementation method for informatization is as follows.

First, since the number of passes is not known in the rolling mill itself, the following method is used.

The rolling direction collected one point per second in real time may be determined by the left and right separation signals (1,0). If a hot coil is loaded and wound onto the exit tension reel, a continuous signal of 1 is received. When the second rolling operation is performed after the first rolling operation, the direction is changed to the right (0), and when stored in the data collection server, the application server detects this and increases the number of passes by 1 each time to increase the number of passes. The method of classification is as follows when the operation of one hot coil is completed and withdrawn and the next hot coil is charged.

 That is, the operating state of the exiting makerel (converted to 1-> 0), the operating state of the material unloader (Drag Uncoiler) (when loading a new coil (converted to 0-> 1)), and the rolling speed 0) and the rolling current (rolling current 0 at the time of the pass change) can be distinguished by using an algorithm that combines the work coil information matching on what the worker has done in the future. It is processed in the state where information processing is possible

There are two kinds of information method mentioned above (coil matching method after work: coincidence of water and information),

In the first method, only the worker can know what work was done when charging the raw material coil. At the same time, the worker can monitor the real-time working state with the help of the data collection server 25 and the application server 23. However, the data collection server 25 and the application server 23 does not know at present what kind of raw materials have been charged and work. Therefore, to do this, use After performing work as a work criterion, the worker registers the production results. At this time, if you input only the necessary items such as working time and inspection item to know which coil worked, it will exist in the plate system. The application server 23 remotely accesses the sheet system and acquires an unspecified number of coils worked at the corresponding time for each production time and provides them to the operator, which induces the operator to match the water and the information, thereby completing the step of informatization. Done.

As a result of the initial implementation of the present invention as a second method, after the worker performed the work, artificial coil matching sometimes made it difficult to informatize because the coil matching did not occur due to an operation problem (busy or forgotten). To this end, the application server 23 obtains the coil produced on the day from the plate system 24 for each time zone, estimates the working time recorded by the data collection server 25, and uses a method of automatically synchronizing water and information. Considering the case where (number of passes, termination) is not unusual, the level was almost 100%.

The application server 23 converts and stores the actual value of the digital data by data filtering, and the generated data is designated to obtain information such as non-operation, yield, yield, etc. through the sheet system 10. Automatically send the work done to the recipient to the designated user by e-mail.

The plate system 10 is a work order, the company's internal infrastructure system for production registration to connect the system of the present invention to the company's internal communication system (LAN) to obtain the coil information for the data stored in real time.

When the conversion value is formed according to the matching method by the application server 23, the user (manager, operator) is completed the formation of the basic data necessary for the analysis, the data data visualization work and data analysis worker 27 Data visualization and data analysis are performed in.

When the user enters a command specified in the application server 23, the user can receive the desired work status as a graph or spreadsheet document.

5 is a graph displayed on the user's monitor through real-time monitoring, using the data collected in real time through the graph shown in Figure 6 can observe the online work on the rolled products, and also analyze the work deviation of the operator Through the continuous management, the productivity is improved by reducing the charging loss time of the rolling operation, the reduction of the drawing loss time, the standardization of the working conditions for improving the productivity, and the increase in the rolling productivity (Ton / hr).

FIG. 6 is a flowchart illustrating an embodiment of storing and analyzing data of a steel sheet introduced into the rolling mill shown in FIG. 3.

As shown in FIG. 6, the data collection and storage step 28 generated in the rolling mill and the data rearrangement and data response step 29 are displayed to the user for rearranging the collected and stored data.

In the data collection and storage step 29, 16 data sources generated in the rolling mill during hot coil rolling are converted through a data converter, and the converted values are transmitted to a data acquisition server and stored in a database. In this case, it is possible to display in real time.

In the data rearrangement and data response step 29, the data stored in the data acquisition server (DAS) is displayed in real time by rearranging the stored data, generating a delimiter, storing the classification, and responding to a client or a user requirement. Analysis of stored values through matching method, and additionally, raw data download function, work specificity record / retrieval, work standard table registration / retrieval, automatic mail sending, etc. These functions are management software created for operating system operation. The present invention relates to a data storage and analysis system using RCM and a method thereof provided to a user or a client through an in-house computer network. The novel features of the present invention are illustrated and described, and are disclosed in the appended claims. However, these features are not limited to the above description, and remove the spirit of the present invention. Form and details of the device illustrated in that any person skilled in the art, as well as pan-born in the use of the device it is possible that various omissions, modifications, substitutions and modifications.

The present invention uses a data storage and analysis system using RCM for a rolling operation process that uses various raw materials and thus lowers workability, lowers productivity, and is difficult to track the cause in case of an accident in a conventional operation site and cannot be monitored in real time. By installing a system for storing and analyzing values generated in rolling mills, data generated during rolling are stored and analyzed in real time to stabilize operating conditions, reduce deviations among operators, increase rolling speed, reduce rolling time and productivity There is an effect of improving the conventional productivity (Ton / hr) by the standardization of the working conditions to be improved.

Claims (5)

delete delete delete The 16 data sources generated in the rolling mill during hot coil rolling are converted through the data converter 22, and the converted values are transmitted to the data collection server 25 and stored in the database 26. Data collection and storage step 28, if any, displayed in real time; The data collection server 25 displays the stored data in real time, and analyzes the stored values in a matching method and additionally downloads raw data, records / looks up work specifics, registers / looks up work standard tables, and automatically sends mails. These functions consist of data rearrangement and data response steps (29) provided to users or clients through an in-house computer network (LAN) through the operation of management software created for system operation. After the work is performed on the basis of the rolling work, the application server 23 remotely accesses the sheet system 24 and acquires an unspecified number of coils worked at the corresponding time for each production time and provides the worker with the rolling. Data storage and analysis method characterized in that water and data (information) to match. The 16 data sources generated in the rolling mill during hot coil rolling are converted through the data converter 22, and the converted values are transmitted to the data collection server 25 and stored in the database 26. Data collection and storage step 28, if any, displayed in real time; The data collection server 25 displays the stored data in real time, and analyzes the stored values in a matching method and additionally downloads raw data, records / looks up work specifics, registers / looks up work standard tables, and automatically sends mails. These functions consist of data rearrangement and data response steps (29) provided to users or clients through an in-house computer network (LAN) through the operation of management software created for system operation. After the worker performs the work, the application server 23 obtains the coil produced on the day from the sheet system 24 for each time zone, estimates the working time recorded by the data collection server 25 and automatically collects the rolled material and data (information). Data storage, analysis method characterized in that the matching.

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