KR20170054152A - Method and apparatus for displaying 2 byte character on virtual terminal for ISO11783 - Google Patents

Abstract

The present invention relates to a two-byte character display method used by a virtual terminal two-byte character display device displaying two-byte characters even in an international standard scheme supporting only one-byte characters. The two-byte character display method includes: a two-byte character conversion step of converting and reconfiguring one input character as a combination of a container object and a linear object upon receiving a two-byte character input by a virtual terminal writing tool; and a step of displaying a virtual terminal definition document including the character converted by the virtual terminal. The present invention can display two-byte characters including Korean characters on a virtual terminal compatible with ISO 11783 only supporting one-type character standards (ISO Latin 1, 9).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for displaying a 2-byte character on a virtual terminal compatible with an international standard supporting only one-

The present invention relates to a method and apparatus for effectively utilizing a standard proposed in International Standard ISO11783, and more particularly, to a method and apparatus for implementing double-byte characters such as Hangul on an ISO11783-compliant virtual terminal.

The international standard ISO11783, also called ISOBUS, defines specifications and specifications applicable to agricultural machinery such as tractors and their associated work machines based on network communication technology.

ISO11783 is designed to deal with intelligent, multi-functional communication between agricultural machinery and its attached devices, and it provides specific specifications for a virtual terminal that can effectively transmit information to users and perform work instructions (ISO11783-6, Virtual terminal, Jun. 15, 2004).

The virtual terminal supports telephonic transmission and instructions via a touchable LCD screen and supports only ISO Latin 1 and ISO Latin 9 character sets (ISO11783-6, page 134) for character support, There is a limit to providing only a screen.

On the other hand, there is no effective way to show Hangeul in the development of a virtual terminal for domestic farmers due to changes in the situation of domestic medium and large sized agricultural machinery market where the supply is increasing. In addition, in addition to complying with the international standard for responding to the strengthening trends of foreign trade regulations of each country, it is also possible to use a virtual character string that can be distributed to countries using double-byte characters such as Japan, China, Southeast Asia, Demand for terminals is expected to increase, and ISO11783 does not currently support double-byte characters.

Korea Patent Publication No. 1988-0014459

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus capable of supporting 2-byte characters including Korean characters in an ISO11783 standard virtual terminal environment in which only one- .

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, in a method for displaying a two-byte character in a virtual terminal double-byte character display device capable of displaying double-byte characters in an international standard supporting only one-byte characters of the present invention, When a two-byte character is input by the authoring tool, a two-byte character conversion step of converting the input character into a combination of a container object and a line object, and a virtual terminal definition document .

Wherein the converting the double-byte character comprises: creating a container object for one character entered by the virtual terminal authoring tool; adding a set of points corresponding to the input character into the container object; The method comprising the steps of: recording an X coordinate and a Y coordinate, which are positional values of a line object, in the container object; generating a line object corresponding to each point element contained in the container object; 1, respectively.

In one embodiment of the present invention, the step of fixing the width and height of the line object to 1 may further include a step of creating a new container object for the newly input new character.

In the present invention, the international standard may be ISO 11783.

In a virtual terminal double-byte character display apparatus capable of displaying two-byte characters in an international standard supporting only one-byte characters of the present invention, an authoring tool for defining each element displayed on the screen of the virtual terminal A two-byte character converter for converting a two-byte character inputted by the authoring tool into a combination of a container object and a line object, a virtual terminal definition document including characters converted by the double- An application programming interface (API) for constructing a screen corresponding to an element necessary for displaying a document interpreted through the interpreter, a control command is transmitted to the display hardware of the virtual terminal according to the screen configuration API And a hardware driver for receiving And a display unit for displaying a screen in accordance with one control command.

Wherein the double-byte character converter generates a container object for one character input by the authoring tool, adds a set of points corresponding to the input character to the container object, A coordinate object and a Y coordinate are recorded in the container object, a line object corresponding to each point element included in the container object is created, and a width and a height value of the line object are fixed to 1 Can be converted.

The 2-byte character converter may generate a new container object for a new character after fixing the width and height of the line object to 1.

In one embodiment of the present invention, the 2-byte character converter may be implemented by an ECU (Electronic Control Unit).

In the present invention, the international standard may be ISO 11783.

According to the present invention, it is possible to display a 2-byte character including Hangul in an ISO11783 compatible virtual terminal supporting only one byte standard (ISO Latin 1, 9).

In addition, according to the present invention, it is possible to reduce the labor cost, development cost, and development time of various international standard ISO11783 compatible device manufacturers by providing hardware capable of interpreting double-byte characters in real time.

Further, according to the present invention, by displaying double-byte characters for domestic farmers who are vulnerable to the English screen and farmers of countries using double-byte characters, it is possible to increase user-friendliness and purchasing motivation for various international standard agricultural machinery products .

Further, according to the present invention, it is possible to secure competitiveness in products of other countries that support only English-language characters in a sales strategy for emerging developing countries where the use of agricultural machines is increasing.

1 is a conceptual diagram showing a screen display process of the ISO11783 virtual terminal.
2 is a conceptual diagram illustrating a screen display process of the ISO11783 virtual terminal according to an embodiment of the present invention.
3 is a diagram illustrating character representation using a fixed pixel designation scheme.
4 is a table showing attribute values of screen elements supported by ISO11783.
FIG. 5 is a diagram illustrating the grouping of elements displayed on a screen using a container object according to ISO11783.
6 is a table showing attribute values of container objects supported by ISO11783.
Fig. 7 is an exemplary diagram showing a Korean character "a" in compliance with the ISO11783 standard.
8 is a diagram illustrating a byte structure of a container object and a line object for expressing the Hangul character "a ".
9 is a diagram illustrating an existing method and a 2-byte character display process according to the present invention in ISO11783.
10 is a diagram illustrating a software-based 2-byte character display process according to an embodiment of the present invention.
11 is a diagram illustrating a hardware-based double-byte character display process according to another embodiment of the present invention.
FIG. 12 is a flowchart illustrating a method for displaying a 2-byte character in the ISO11783 virtual terminal according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted in an ideal or overly formal sense unless expressly defined in the present application Do not.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

In the international standard ISO11783, in order to provide information to the user and reflect the intention of the user, the standard for the virtual terminal processing the user's input command is presented through the ISO11783-6 document.

1 is a conceptual diagram showing a screen display process of the ISO11783 virtual terminal.

As shown in FIG. 1, the document implementation through the virtual terminal in ISO11783 includes an authoring tool 10 defining each element of the screen shown in the virtual terminal, a document 20 created by the authoring tool 10, And a virtual terminal (A) showing a graphical user interface (GUI) corresponding to the screen according to the definition described in this document (20).

A general virtual terminal (A) conforming to ISO11783 compatibility includes an interpreter (30) for internally interpreting a document defining a virtual terminal, and an element (character, line, box, ellipse, polygon A hardware driver 50 for transmitting a command to the display hardware of the virtual terminal according to the screen configuration API 40 and a user screen 60 of LCD type ).

In this process, the standard ISO11783 only supports ISO Latin 1 (or ISO Latin 9) for characters and strings in screen elements. That is, since a double-byte character set including Hangeul is not supported, the present invention proposes an implementation method as follows.

2 is a conceptual diagram illustrating a screen display process of the ISO11783 virtual terminal according to an embodiment of the present invention.

As shown in FIG. 2, in the case of using a 2-byte character in the virtual terminal authoring tool, in order to correctly illustrate this, in the present invention, in the step of generating a virtual terminal definition document, Byte character converter 120 that performs a process of converting a character string into a character string.

That is, in the present invention, an authoring tool 110 for defining each element of a screen shown in the virtual terminal A, and a conversion unit for converting a double-byte character including a Korean character input by the authoring tool into a form capable of displaying An interpreter 140 for interpreting the virtual terminal definition document 130 transformed by the two-byte character converter 120 and an interpreter 140 for interpreting the virtual terminal definition document 130 (API) 150 for constructing a screen corresponding to an element (character, line, box, ellipse, polygon, etc.) And a display unit 170 in the form of an LCD for displaying according to a command received from the hardware driver 160. [

The authoring tool 110 defines each of the elements displayed on the screen of the virtual terminal.

The two-byte character converter 120 converts the two-byte character input by the authoring tool 110 into a combination of a container object and a line object.

The interpreter 140 is responsible for interpreting the virtual terminal definition document 130 including the characters converted by the double-byte character converter 120.

The screen configuration API (Application Programming Interface) 150 serves to form a screen corresponding to the elements required to display the analyzed document through the interpreter 140.

The hardware driver 160 transmits a control command to the display hardware of the virtual terminal according to the screen configuration API 150.

The display unit 170 serves to display a screen according to a control command received from the hardware driver 160.

In the present invention, the double-byte character converter 120 generates one container object for one character input by the authoring tool 110, adds a set of points corresponding to the input character into the container object, The X coordinate and the Y coordinate of the position object of the container object are recorded in the container object, a line object corresponding to each point element contained in the container object is created, and the width and height values of the line object are fixed to 1 .

Then, the 2-byte character converter 120 fixes the width and height of the line object to 1, and then creates a new container object for the newly input new character.

In the present invention, a method of using a screen element or an object presented in a standard specification in order to correctly display a 2-byte character including Korean characters on the screen of a user while conforming to the ISO11783 standard is described as follows I suggest.

Generally, there are two methods of displaying characters on a screen. The fixed pixel designation method and the variable pixel calculation method are used. An appropriate method is determined according to the size of a character and a resolution of a display to be displayed.

The fixed pixel designation method is a method of filling the inside of the grid formed by the uniform size of the width and the length into the shape of the character.

3 is a diagram illustrating character representation using a fixed pixel designation scheme.

In FIG. 3, (a) is '1AQ' and (b) is an example of expressing 'a'.

In order to use such a fixed pixel designation method, it is necessary to be able to show a point on the screen, but the screen element which can represent a point is not supported in the ISO11783 standard.

There are four kinds of screen elements that can be shown using ISO11783 (ISO11783-6, page 25).

That is, it is a line, a rectangle, an ellipse, and a polygon.

Accordingly, in the present invention, a method of displaying a 2-byte character including Korean characters using a line as a most basic screen element will be described as follows.

The line element, which is a screen element presented in ISO11783, supports attribute values of the screen elements as shown in the table of Fig. 4, below (ISO11783-6, page 63)

4 is a table showing attribute values of screen elements supported by ISO11783.

Referring to FIG. 4, when the width and height of a line are limited to 1, an effect of showing a point can be obtained. However, according to a table provided in the specification, It can be seen that it is not possible to specify the two-dimensional position (X coordinate, Y coordinate) within the dimensional plane.

In the ISO11783 standard, individual screen elements such as lines, rectangles, and polygons are not shown independently, but a plurality of screen elements are grouped and shown using a container object, which is conceptually an upper concept (see ISO11783-6 , Page 10).

FIG. 5 is a diagram illustrating the grouping of elements displayed on a screen using a container object according to ISO11783.

The property values of the container object are as shown in the following table of FIG. 6 (ISO11783-6, page 44).

6 is a table showing attribute values of container objects supported by ISO11783.

Referring to FIG. 6, it can be seen that the position (X coordinate, Y coordinate) of the starting point of a plurality of line screen elements is provided collectively through the attributes of the upper element. On the other hand, the position of the container object can be defined in the topmost working set.

According to the above-mentioned ISO11783 standard, the letter " a " can be expressed as shown in FIG.

Since the minimum size of a font presented in ISO11783 is 6x8 (ISO11783-6, page 84), a pixel having a 6x8 grid is enlarged and is shown in Fig.

Fig. 7 is an exemplary diagram showing a Korean character "a" in compliance with the ISO11783 standard.

The above method can be regarded as a method in which a container includes a set of a plurality of line objects as a lower object in order to display one character.

On the other hand, when multiple characters are contained in one container, the coordinate values of the points (or pixels) in the individual characters need to be changed according to the positions in the character strings, can do.

The byte structure of the container object and the byte structure of the line element set generated for the example of FIG. 7 are described below.

8 is a diagram illustrating a byte structure of a container object and a line object for expressing the Hangul character "a ".

Referring to FIG. 8, in order to express "a ", a container object is configured in a total of 107 bytes, and a line object requires a different object configuration for every 16 lines.

In the present invention, in the method of displaying 2-byte characters in ISO11783 virtual terminal, when a 2-byte character is input by the virtual terminal authoring tool, the 2-byte character is converted into a combination of a container object and a line object, A conversion step and a virtual terminal definition document containing the converted characters in the virtual terminal.

FIG. 12 is a flowchart illustrating a method for displaying a 2-byte character in the ISO11783 virtual terminal according to an embodiment of the present invention.

Referring to FIG. 12, in the method of displaying double-byte characters in the ISO11783 virtual terminal according to an embodiment of the present invention, one container object is created for one character (S201).

Then, a set of points corresponding to one character is added to the container object (S203).

Then, in step S203, the X and Y coordinates, which are the positional values of the points, are recorded together (S205).

Then, a line object corresponding to each point element included in the container object is created (S207).

Since the line object has a shape of a point, the width and height values are fixed to 1 (S209).

Next, a new new container object is created for the new character (S211), and steps S201 to S209 are performed for the new character.

9 is a diagram illustrating an existing method and a 2-byte character display process according to the present invention in ISO11783.

9 (a) is an example of a case in which the present invention is not used. Even if a two-byte character including a Korean character is input through an authoring tool, in an ISO11783 compatible virtual terminal, It indicates that characters can not be output.

9 (b) is an example of a case where the double-byte character converter of the present invention is used. The element corresponding to the double-byte character including the Korean alphabet input by the authoring tool is defined as a virtual terminal definition Is inserted into the document, and finally, the intended character string can be finally displayed.

In the present invention, it is possible to consider a software-type converter for converting the virtual terminal definition document, which is the result of the virtual terminal authoring tool, into a 2-byte character. However, when a converter of software type is used, it may be troublesome to newly operate the converter every time a change of the user's screen is requested. Accordingly, in the present invention, it is proposed to implement a 2-byte character converter in two ways of software method and hardware method.

10 is a diagram illustrating a software-based 2-byte character display process according to an embodiment of the present invention.

10 is an example of a case where the character "a" is modified to "b"

11 is a diagram illustrating a hardware-based double-byte character display process according to another embodiment of the present invention.

Fig. 11 is an example of a case where the character "a" is modified to a character " b "in a software manner in the present invention. In the present invention, a function of converting a double- (Electronic control unit), which is an independent hardware that allows the user to control the system. By using this, the virtual terminal definition document created by using the virtual terminal screen authoring tool can be analyzed in real time, so that it is possible to solve the inconvenience of separately operating the 2-byte character converter every time a modification occurs.

Referring to FIG. 11, in order to ensure compatibility with already-released virtual terminals in compliance with the standard specifications, a hardware capable of interpreting the virtual terminal definition document in real time and transmitting the virtual terminal definition document conforming to the standard presented in the standard specification (ECU).

While the present invention has been described with reference to several preferred embodiments, these embodiments are illustrative and not restrictive. It will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit of the invention and the scope of the appended claims.

110 Authoring Tools 120 Double-Byte Character Converter
130 Document 140 Analyzer
150 Screen configuration API 160 Hardware driver
170 display unit

Claims (9)

In a double-byte character display method in a virtual terminal double-byte character display device which enables to display double-byte characters in an international standard that supports only one-byte characters,
A two-byte character conversion step of converting the entered character into a combination of a container object and a line object, when a two-byte character is input by the virtual terminal authoring tool; And
And displaying a virtual terminal definition document containing the converted characters in the virtual terminal.
The method according to claim 1,
Wherein the double-byte character conversion step comprises:
Creating a container object for one character entered by the virtual terminal authoring tool;
Adding a set of points corresponding to one character entered into the container object;
Recording an X coordinate and a Y coordinate, which are positional values of the point, in the container object;
Creating a line object corresponding to each point element contained in the container object; And
And fixing the width and the height of the line object to 1.
The method of claim 2,
Further comprising the step of creating a new container object for the newly input new character after fixing the width and height of the line object to one.
The method according to claim 1,
Lt; RTI ID = 0.0 > ISO 11783. < / RTI >
In a virtual terminal double-byte character display device that enables display of double-byte characters in an international standard that supports only one-byte characters,
An authoring tool for defining each of the elements displayed on the screen of the virtual terminal;
A two-byte character converter for converting a two-byte character input by the authoring tool into a combination of a container object and a line object;
An interpreter for interpreting a virtual terminal definition document containing the characters converted by the double-byte character converter;
A screen configuration API (Application Programming Interface) for constructing a screen corresponding to an element necessary to display a document analyzed through the interpreter;
A hardware driver for transferring a control command to the display hardware of the virtual terminal according to the screen configuration API; And
And a display unit for displaying a screen according to a control command received from the hardware driver.
The method of claim 5,
Wherein the double-byte character converter generates a container object for one character input by the authoring tool, adds a set of points corresponding to the input character to the container object, A coordinate object and a Y coordinate are recorded in the container object, a line object corresponding to each point element included in the container object is created, and a width and a height value of the line object are fixed to 1 Byte character display device.
The method of claim 6,
Wherein the 2-byte character converter fixes the width and height of the line object to 1, and then creates a new container object for the newly input new character.
The method of claim 5,
Wherein the double-byte character converter is an ECU (Electronic Control Unit).
The method of claim 5,
Wherein the international standard is ISO 11783.

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