KR100566498B1 - Document standardization method for railway maintenance using XML - Google Patents

Abstract

The present invention enables the real-time input, inquiry and output on-line for maintenance work in the field of urban railway vehicles, and the creation of scalability to enable sharing of maintenance instructions, drawings, device / part information, and real-time technical information on the cause of failure. The present invention relates to a method for implementing a standardized urban railway vehicle maintenance electronic document using an XML (eXtensible Markup Language) technology.

The present invention as such; An information system for managing a document for maintenance work of a railway vehicle, comprising: (a) analyzing a correlation between document structure information for maintenance of the railway vehicle and creating an XML document for it through an XML document editor;

(b) converting the created XML document into a schema and storing the XML document for each element in an XML database.

According to the invention; It is possible to share a series of maintenance work information such as maintenance work plan, work order, work result and performance of railway car by making standard electronic document of various documents for railway car maintenance work using XML technology.

Railroad Vehicle, Electronic Document, XML, Standardization

Description

Document standardization method for railway maintenance using XML}             

1 is a diagram illustrating an analysis procedure of a railway vehicle maintenance document according to the present invention.

2 is a system configuration diagram illustrating a method for standardizing railway vehicle maintenance documents using an extensibility generation language according to the present invention.

3 is a diagram illustrating a rail vehicle maintenance document standardization process using an extensibility generation language according to the present invention.

*** Explanation of symbols for main parts of drawing ***

200: Information system 210: XML processor

212: XML Parser 214: XML Parser

218: XML database 216: XML schema generator

220: query interpreter 222: information search engine

300: client PC 310: browser

The present invention relates to a method for standardizing railway vehicle maintenance documents using an extensibility generation language. More specifically, the present invention provides real-time input, inquiry and output for maintenance work in the field of urban railway vehicles, and maintenance instructions. The present invention relates to a method for implementing a standardized urban railway vehicle maintenance electronic document using extensible markup language (XML) technology to enable sharing of real-time technical information on the construction, drawings, device / part information, and failure causes. .

In general, in order to carry out maintenance work on railway vehicles, the work plan, instructions, results, and results should be expressed in document for each maintenance work procedure.

In particular, there is a variety of documents for the maintenance of railway vehicles in the operating institution of the railway vehicle. Although there are documents with a specific format, the document format is different for each operating institution, and even within the same operating institution, there is no standardized document format. Many documents use formatting.

However, since the above documents are stored and stored offline, the information on the maintenance work is not systematically databased, and the maintenance guides, drawings, devices and parts information for the maintenance work of the railway vehicle. Since technical documents such as the paper documents are kept lost or damaged frequently and accessible only to some people, sufficient information is not provided in the future maintenance work.

Accordingly, the present invention has been made to solve such a problem, and an object of the present invention is to establish an efficient urban railway vehicle maintenance system through information on technical results and information on maintenance work results / cause of operation of railway vehicles. In order to provide a method for standardizing online documents using XML (eXtensible Markup Language) technology.

The present invention relates to a railway vehicle maintenance document standardization method using an extensibility generation language, comprising: (a) document structure information for maintenance of the railway vehicle in an information system for managing a railway vehicle maintenance document; Analyzing the correlation and creating an XML document for it through an XML document editor; (b) converting the created XML document into a schema and storing the XML document for each element in an XML database.

The step (a) comprises the steps of (a1) analyzing the correlation of document structure information for maintenance of the railway vehicle and generating a DTD (Document Type Definition) thereof; (a2) generating an instance for generating contents of a maintenance document of a railway vehicle according to the DTD; (a3) creating a stylesheet in order to set an output format on a screen of the instance.

The DTD may define an element, an attribute, an entity, and a processing instruction.

(c) When an external user requests a query by accessing the maintenance system from his client PC from step (b), the query is analyzed and document information stored in the XML database is converted into the client PC of the user. Transmitting; characterized in that it further comprises.

The client PC may be any one of a PDA, a mobile phone, a notebook computer, and a PC.

With reference to the accompanying drawings, the rail vehicle maintenance document standardization method using the extensibility generation language according to the present invention will be understood by the embodiments described in detail below.

1 is a diagram illustrating an analysis procedure of a railway vehicle maintenance document according to the present invention, and FIG. 2 is a system configuration diagram illustrating a method for standardizing railway vehicle maintenance documents using an extensibility generation language according to the present invention. 3 is a diagram illustrating a standardization process of a railway vehicle maintenance document using an extensibility generation language according to the present invention.

First, in order to establish a technical information sharing and exchange system for documents related to vehicle maintenance work being used by the operating institution of a railway vehicle according to the present invention, a classification system and a standard classification system for classification and data contents are established as follows. do.

Technical data identification and functional classification consist of contents such as form documents (plans, work documents, performance reports, etc.) and technical documents (drawings, maintenance instructions, etc.).

Classification of user identification by data consists of management, support, operation, and training.

The classification of application form by data and user consists of contents such as reading, advice / comment, update / management, extract / process / transformation, and storage.

Data type and related standard classification definition consist of contents of document file, drawing file, 3D shape file, image file, audio / video file, etc.

Approach classification definition of data consists of contents such as hard copy, physical media (Mgnetic Tape, CD, PC, Mobil, etc.), and online communication networks (LAN, WAN, etc.).

When the standard classification system of documents is established as described above, the documents are analyzed according to the document analysis processing flow as shown in FIG.

Document analysis, document analysis preparation step (s100), basic element analysis step (s110), the relationship analysis step between components (s120), document structure expansion step (s130), analysis result modeling step (s140), DTD according to the purpose of use The six categories of the type classification step (s150) are carried out, and the contents of the document analysis are as follows.

Define environment such as selection of target documents for maintenance of railway vehicles, determine usage purpose of document generation / distribution / reference / archive, and establish analysis standard and method to maintain consistency in document analysis process. After the determination, the document goes through a preparatory step for document analysis, which collects necessary data such as a sample of the target document and a pre-developed XML document (S100).

After going through the document analysis preparation step (S100), the information type and structure in the document are defined, the environment of the document composition such as the type of information source and the type of text is identified, and the components of the document are defined and subdivided. Identifying the unique characteristics of the component and goes through the step of analyzing the basic element defining the attribute (S110).

After the basic element analysis step (S110), the hierarchical relationship between the components of the document for the maintenance of the defined railway vehicle, the order of occurrence, etc. are investigated, and the relations between the respective components are identified, The components are integrated into one common component, and the relationship between the components such as the relationship between the information linked to the inside and the outside of the document for maintenance is analyzed.

After the basic element analysis step (S120), the document structure is analyzed for compatibility with other application systems that are linked and driven, and whether the document structure is expanded to reflect multimedia information such as moving images and voice. After reviewing the document structure, analyzing whether the document structure is easy to change or add, is analyzed.

After the document structure expansion step S130, the expression of the document analysis result is clarified, and the analysis result representing the top-down / hierarchical modeling using the tree / block diagram is modeled.

After the analysis result modeling step (S140), the similar document structure is unified, standardization facilitates mutual exchange between external organizations and organizations, and the purpose of outputting the desired information and converting it into another document form. In step S150, the type of DTD (Document Type Definition) is classified.

As described above, after classifying maintenance documents in the field of railway vehicles and performing standardization of documents according to document analysis procedures, a standardized urban railway vehicle using an extensible markup language (XML) technology described below. You will create a maintenance document.

The XML document thus created is created in the XML document editor 202 and transferred to the XML processor 210 in the information system 200 as shown in FIG. 2 and passed through the XML parser 212 and the XML analyzer 214 to the database server. In order to be stored in the XML database 218 of 208, the XML schema generator 261 converts the schema to Schema and stores each element in the XML database 218.

In addition, when retrieving data stored in the XML database 218, the query is made through the browser 310 used by the user of the client PC 300, and the query thus prepared is provided for each element through the query interpreter 220. The information is sent to the search engine 222 to search the XML database 218. The search results are generated as an XML document through the query result generator 224 and transmitted to the browser 310 of the client PC 300 for user confirmation. It becomes possible. On the other hand, the index database 226 for storing the automatic index information through the morphological analysis of the query and the automatic indexer 228 for automatically granting their indexes are further provided to further refine the search.

At this time, the client PC 300 is preferably composed of a variety of wired and wireless terminals, such as PDA, mobile phone, notebook computer, PC.

Hereinafter, a process of preparing a document for maintaining a railway vehicle composed of XML will be described in detail.

Here, an XML document is a DTD that defines how an XML document is structured and what elements contain data, and an instance that defines attribute values, such as what font or text color to display as part of the DTD definition. You will create a stylesheet that defines the instance and the format in which the XML document should be represented in which pattern or behavior.

The Document Type Definition (DTD) defines an element, an attribute, an entity, and a processing instruction, and declares a notation and a relationship between the elements.

At this time, when preparing the DTD, standardize the document structure suitable for the maintenance environment of the railway vehicle, but comply with the DTD design principle rewritten by the W3C, and design the DTD so that the document can be exchanged. The DTD should be designed based on empirical methods, and prioritized by stages.

First, an element is defined as follows.

An example of the creation of the components defined in this way is as follows.

① Data Content Model <! ELEMENT Fair Report (Title, Full Content, Content)>

② Component Content Model <! ELEMENT Fair Report-Title (#PCDATA)>

③ mixed content model <! ELEMENT Random Order (#PCDATA] Sublist) *>

④ Picture Information Model <! ELEMENT image EMPTY>

Note that the tag opened at the time of declaration must be closed.

Next, an attribute is defined as follows.

An example of the definition of an attribute definition defined as above is as follows.

① #PEQUIRED <! ATTLIST Drawing Drawing CDATA #PEQUIRED>

② #IMPLIED <! ATTLIST column background color CDATA #IMPLIED>

③ #FIXED <! ATTLIST Contents (Q) S] D) CDATA #FIXED "S">

In this case, care must be taken not to include the same property more than once in one component, and multiple components cannot be used at the same time.

Next, an entity is defined as follows.

An example of creating an entity definition defined as above is as follows.

① Declaration of String Entity <! ENTITY Railroad "Korea Railroad Research Institute">

② Refer to the string entity <Organization name> &Railyeon; </ Institution name>

③ <! ENTITY Workflow Diagram SYSTEM "Flowchart.DWG" NDATA DWG>

At this time, if you specify your own entity again during entity declaration, an error occurs.

Next, the processing instructions must be defined so that the XML processor can recognize the DTD. An example of the creation of a processing instruction definition is as follows.

① For KSC5601 <? xml version = "1.0" encoding = "KSC5601"?>

② For EUC-KR <? xml version = "1.0" encoding = "EUC-KR"?>

At this time, when processing command declaration, in MS Explorer 5.0, processing command declaration must be declared in lower case.

Next, the notation is defined as follows.

An example of the notation defined in this way is as follows.

① <! NOTATION JPG SYSTEM "MSPAINT.EXE">

② <! NOTATION DWG SYSTEM "C: /DAVINCH.EXE">

The instance declares markup, creates an instance, specifies attribute values, and links external files.

Therefore, during the development of an instance, a markup declaration step defining XML instance information, a document generation step and an instance generating document information, and an attribute value designation step reflecting properties to the instance according to the DTD And, it goes through the steps of referring to external files such as drawings and drawings.

First, the document type declaration in the markup declaration phase is defined as follows.

An example of a document type declaration defined in this way is:

<! DOCTYPE Process Reporting SYSTEM "Process Reporting.DTD" []>

Next, an example of attribute value creation in the instance creation step is as follows.

<Column> <Month> <Power_Performance> 99.34 </ Month_Performance> </ Month> </ Column>

Next, the attribute value in the attribute value specifying step is defined as follows.

An example of the creation of an attribute value defined as above is as follows.

①DTD <! ATTLIST font

                    Size CDATA #IMPLIED

                    Color CDATA #IMPLIED

                    Type CDATA #IMPLIED>

② XML Instance <font size = 16 styles = black type = archery>

Next, external file linking in the external file linking step is defined as follows.

The following is an example of creating a picture file reference when connecting an external file defined as follows.

①DTD <! ATTLIST Picture Picture Name CDATA #REQUIRED>

                          Width CDATA #IMPLIED

                          Height CDATA #IMPLIED>

② Instance <Picture name = "Sign.gif" Width = "50" Height = "20" />

The stylesheet declares a document representation, a pattern, an action, and links an external file.

In general, XML style sheets use XSL (eXtensible Stylesheet Language), which is a document format language that allows you to view the contents of a document. There are few authoring tools that support XSL rules when developing style sheets. It should be noted that nesting relationships between elements should be specified explicitly.

Therefore, during the development of the stylesheet, the document expression declaration step for declaring the target DTD and XML instance reference, the pattern declaration step for specifying the components of the document, the action declaration step for specifying the information values, and the external You go through the external file linking step, which determines the display of the file.

First, in the document expression declaration step, the document expression declaration of the XML style sheet file is defined as follows.

An example of creating a document expression declaration for an XML style sheet file defined as above is as follows.

<? xml-stylesheet type = "text / xsl" href = "Fair Report.xsl"?>

Next, the pattern declaration at the pattern declaration stage is defined as follows.

On the other hand, the action declaration in the action declaration stage is defined as follows.

An example of creating a pattern and action declaration in an XML style sheet file defined as above is as follows.

<xsl: template match = Process Report_Title> Pattern part

<DIV style = TEXT-ALIGN: CENTER> Action part

<xsl: apply-templates />

</ DIV>

</ xsl: template> Pattern part

Next, an example of creating an external file link, especially when linking a picture file, is as follows.

<xsl: template match = "Process Report_Title"> Pattern part

<IMG> <xsl: attribute name = "src">

      <xsl: value-of select = "@picturename" /> </ xsl: attribute>

      <xsl: apply-templates /> <IMG> </ xsl: attribute>

Hereinafter, with reference to Figure 3 will be described a rail vehicle maintenance document standardization process using the scalability generation language according to the present invention.

First, the data is collected for the information of the maintenance document of the railway vehicle, and based on this, the basic analysis as shown in FIG. 1 and the relationship between each component are analyzed (S400).

In this way, after data collection and analysis on the maintenance of the railway vehicle is performed, a DTD (Document Type Definition) defining elements, attributes, and entities that appear in the tag entry document is defined (S410).

After defining the Document Type Definition (DTD), an instance of the content of the document to be actually displayed on the screen, that is, the part in which the document is written in the actual tag is created (S420).

In this way, when an instance of the contents related to the maintenance of a railway vehicle is defined, a style sheet defining an attribute value such as what shape, font, size, etc., is actually configured on the screen of the computer, etc. stylesheet) (S430).

As described above, the XML document related to the maintenance of the railway vehicle completed through the DTD declaration step S310, the instance creation step S320, and the stylesheet creation step S330 is an XML parser 212 and an XML analyzer ( 214 is analyzed and converted into a schema through the XML schema generator 216 and stored in the XML database 218 for each element (S440).

The contents of the XML database 218 analyzed and stored as described above may be searched for by each element through the query parser 220 when a user using the client PC 300 accesses the browser 310 and requests a query. The search results are transmitted to 222 to search the XML database 218, and the searched results can be checked by the user through the browser 310 of the client PC 300 as an XML document.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to the embodiments of the present invention.

As can be seen from the above description, according to the present invention, a series of documents, such as maintenance work plan, work instruction, work result, and performance of railway car, are produced by standardized electronic document of various documents for maintenance work of railroad car using XML technology. Real-time sharing of maintenance work information is possible.

In addition, the information of the various documents for the maintenance work of the urban railway is excellent for the user's accessibility, easy to change information.

In addition, an efficient maintenance system is established through the informatization of various documents and the use of standardized documents for railway vehicle maintenance work.

Claims (5)

In the information system that manages the documents for maintenance work of railway vehicles, (a) analyzing the correlation of document structure information for maintenance of the railway vehicle and creating an XML document for it through an XML document editor; (b) converting the created XML document into a schema and storing each element in an XML database for each element; Step (a) is (a1) analyzing a correlation between document structure information for maintenance of the railway vehicle and generating a DTD (Document Type Definition) thereof; (a2) generating an instance for generating contents of a maintenance document of a railway vehicle according to the DTD; (a3) creating a stylesheet to set the output format on the screen; a method for standardizing railway vehicle maintenance documents using an extensibility generating language, characterized by comprising: a. delete The method of claim 1, And the DTD defines an element, an attribute, an entity, and a processing instruction. The method of claim 1, (c) When an external user requests a query by accessing the maintenance system from his client PC from step (b), the query is analyzed and document information stored in the XML database is converted into the client PC of the user. Transmitting vehicle maintenance document standardization method using an extensibility generation language, characterized in that it further comprises; transmitting. The method of claim 4, wherein The client PC is a PDA, a mobile phone, a laptop computer, a railway vehicle maintenance document standardization method using a scalable generation language, characterized in that any one of a PC.

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