KR20120073472A - System for supporting multi-file access common interface and for menaging file in thee system - Google Patents

Abstract

PURPOSE: A multi file access common interface supporting system and a file managing method thereof are provided to reduce programming expense for file access by supporting a common interface. CONSTITUTION: A user I/O(Input/Output) request agent(110) receives files which are accessed through a common interface from systems having the other program. A file structure manager(120) analyzes the file and searches for a file having the same structure. The file structure manager adds a structure of the received file.

Description

Multi-file access common interface support system and file management method in the system {SYSTEM FOR SUPPORTING MULTI-FILE ACCESS COMMON INTERFACE AND FOR MENAGING FILE IN THEE SYSTEM}

The present invention relates to a steel process control, and more particularly, to a multi-file access common interface support system and a system for managing multiple files used for steel process control by accessing a single common interface. File management method.

In general, steelworks use EIC system, an equipment control technology using electric, instrument, and computer, to control steel processes, and interface with systems with various protocols. The addition of systems with various communication schemes occurs frequently.

Data files (applications) for the steel process interface with various systems (PLC, DCS, database, OPC server, various instruments, etc.) used in the steel process and different communication protocols. As a result, when a new system is added for steel process control, a new user program must be created for the new communication protocol. In terms of management, the communication protocol of the managed object is increased, which increases the cost of managing and developing data files. .

In addition, in managing a file used for steel process control, in the prior art, when a file is accessed, all the accessed files are directly implemented in a user program. Therefore, in the related art, when a file structure is changed or when a new file structure is added, all users have to change a program to support this. For this reason, in the prior art, there is a problem that it is difficult to standardize the data file for steel process control.

In order to solve the problems described above, the present invention provides a multi-file access common interface support system and a file management method therefor for accessing various types of files used for steel process control with one common interface. To provide.

The present invention is another means for solving the problem, as a substitute for the user's input and output, and various types of steel control files are transmitted from systems having different programs, regardless of different programs through one common interface A user input / output request agent which receives files accessed; A file structure manager which analyzes the received file, searches for a file having the same structure previously stored, and adds the structure and contents of the received file if there is no file of the same structure; And a storage unit which stores various kinds of file structures and file contents in advance, and adds and stores the structure and contents of the file analyzed by the file structure management unit. .

In the multi-file access common interface support system according to the present invention, when there is a file of the same structure, the file structure management unit checks whether the structure and contents of the file have been changed compared to the retrieved file, In this case, the structure and contents of the retrieved file stored in advance in the storage unit are updated with the changed structure and contents of the received file.

In the multi-file access common interface support system according to the present invention, the storage unit File structure management file unit for storing and managing the structure of the various types of steel control file; And a file content file unit which stores and manages contents of files stored in the file structure management file unit.

In addition, the present invention provides another means for solving the problem, if the file is accessed from systems having different programs, respectively, receiving and analyzing the file through a common interface; Checking whether there is a file of the same structure previously stored using identification information of the analyzed file; And if there is no file of the same structure, provides a file management method in a multi-file access common interface support system comprising the step of adding a file for the structure and content of the file.

The file management method in the multi-file access common interface support system according to the present invention includes the steps of: comparing a received file with a retrieved file when a file having the same structure exists; And if the two files are not the same and changed, updating the reflected file by reflecting the changed contents of the received file.

The present invention supports a common interface for accessing various files transmitted from various systems in a network environment, thereby allowing the received file to be added and changed without modifying a user program. This has the effect of reducing the programming cost for the approach.

In addition, the present invention has the effect that standardization of the data file for steel process control is possible.

1 is a diagram showing the structure of a multi-file access common interface support system according to an embodiment of the present invention;
2 is a diagram illustrating a method for file management in a multi-file access common interface support system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the following description and the accompanying drawings, detailed descriptions of well-known functions or configurations that may obscure the subject matter of the present invention will be omitted. In addition, it should be noted that like elements are denoted by the same reference numerals as much as possible throughout the drawings.

Hereinafter, the structure of a multi-file access common interface support system for a steel process will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a structure of a multi-file access common interface support system according to an embodiment of the present invention.

Referring to FIG. 1, the multi-file access common interface support system 100 according to the present invention uses various file systems (PLC, DCS, database) through a file user programming interface (API) 10 which is one common interface in a network environment. , OPC server, various instruments, etc.) can support a single common interface regardless of various communication protocols, through which it is possible to receive and manage various data files. To this end, the multi-file access common interface support system 100 may include a user input / output request agent 110, a file structure manager 120, and a storage 130.

The user input / output request agent 110 receives various files accessed through the common interface 10 and transmits them to the file structure manager 120.

The file structure management unit 120 analyzes the delivered file and adds it to the storage unit 130 when the delivered file structure is a new file structure, and if there is the same file structure, checks whether the file structure is changed and stores the corresponding file structure. Update the file and save the file contents separately.

The storage unit 130 includes a file structure management file unit 131 for storing and managing a file structure management file, and a file content file unit 132 for storing file contents.

Then, with reference to the accompanying drawings, a method for managing files by allowing various types of files used for steel process control in the multi-file access common interface support system configured as described above to be accessed through one common interface will be described in detail. Let's explain.

2 is a diagram illustrating a method for file management in a multi-file access common interface support system according to an embodiment of the present invention.

Referring to FIG. 2, in step 201, the multi-file access common interface support system 100 checks whether a file transmitted from each system is accessed and continuously waits if there is no file accessed. On the other hand, if there is a file access, in step 202, the multi-file access common interface support system 100 receives a file by allowing access to the file through one common interface 10 and analyzes the received file.

In step 203, the multi-file access common interface support system 100 searches for the analyzed file and checks whether there is the same file previously stored in step 204. For example, a file received from each system may be a file having a different structure, and these files may include identification information for indicating the system, and the file having the same structure is searched through the identification information. You can do it.

As a result of the check, if there is no file having the same file structure, in step 205, the multi-file access common interface support system 100 receives the received file as a file having a new structure, and adds a new file structure to the file structure management file unit 131. Add and manage, and stores the content of the file in the file content file unit 132.

On the other hand, if there is a file having the same file structure, in step 206, the multi-file access common interface support system 100 compares the received file and the retrieved file to determine whether it has changed. If the result of the check is not changed, the operation is terminated as it is, and if changed, the changed structure or contents are stored in step 207 to update the previously stored file structure management file and file contents file.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be apparent to those skilled in the art. In addition, although specific terms are used in the specification and the drawings, they are only used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention, and are not intended to limit the scope of the present invention.

10: File User Programming Interface (API)
100: multi-file access common interface support system
110: user input and output request agency
120: file structure management unit
130: storage unit

Claims (5)

A user input / output request agent which receives a user's input / output request, and receives files accessed without regard to different programs through one common interface as various types of steel control files are transmitted from systems having different programs;
A file structure manager which analyzes the received file, searches for a file having the same structure previously stored, and adds the structure and contents of the received file if there is no file of the same structure; And
And a storage unit which stores various kinds of file structures and file contents in advance, and adds and stores the structure and contents of the file analyzed by the file structure management unit. The method of claim 1, wherein the file structure management unit,
If there is a file of the same structure, the received file is compared with the retrieved file to check whether the structure and contents of the file have changed, and if changed, the retrieved file previously stored in the storage unit with the changed structure and content of the received file. Multi-file access common interface support system, characterized in that for updating the structure and content of. The method of claim 1, wherein the storage unit
A file structure management file unit for storing and managing structures of various types of steel control files; And
And a file content file unit for storing and managing contents of files stored in the file structure management file unit. Receiving and analyzing the file through a common interface when the file is accessed from systems having different programs;
Checking whether there is a file of the same structure previously stored using identification information of the analyzed file; And
If a file of the same structure does not exist, adding a file for the structure and contents of the file comprising the step of managing a file in a common interface support system. The method of claim 4, wherein
If there is a file of the same structure, comparing the received file with the retrieved file; And
If the two files are not the same and changed, the file management method of the multi-file access common interface support system, characterized in that for updating by reflecting the changed content of the received file to the retrieved file.

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