JP2997600B2 - Display control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION This invention relates to a Programmable Configuration
Out of a predetermined manner such as a roller (hereinafter referred to as “PLC”).
Connected to external devices to respond to data changes in external devices
Display control device for performing a display operation , especially a drawing machine
Regarding those that have the ability .

[0002]

2. Description of the Related Art Conventionally, this type of graphic data is drawn directly on a screen by using a graphic drawing function configured on a computer, and the drawn graphic is stored as vector or image data. The method used was common.

Further, as a drawing method of a figure, in addition to an operator designating a drawing position on a screen by using an instruction means such as a mouse while looking at an original drawing, a tablet or a digitizer is used to trace the original drawing while tracing the drawing. A method of specifying the position of input coordinates is also known.

[0004] In addition, a graphic drawn on a paper surface is directly taken into a computer as image data using an image scanner and used, or the taken image data is automatically vector-converted.

[0005]

However, it is difficult for the operator to specify the coordinate position on the screen while looking at the original drawing, but to specifically grasp the information such as the input position, size or shape of the figure. Therefore, skill is required to perform accurate drawing in a short time.

On the other hand, the method of tracing the original drawing as it is using a tablet or the like requires pre-processing such as reducing or enlarging the drawing size in advance according to the input means, and displacing the original drawing during drawing. There are still many disadvantages, such as the need to prevent

In the method of using the image data as it is, the amount of data to be stored becomes too large, and the handling of the data becomes complicated. Further, even if an attempt is made to vectorize the data, complete vector data cannot be obtained because there are many ambiguous parts in the data to be handled, and a correction operation is indispensable as post-processing. In addition, this correction work still has many problems, such as requiring as much trouble as creating a figure from the beginning.

As a result of consideration by the present inventors in view of the above-mentioned inconveniences, figures which can be directly used as display figures in a display control device are often drawn in specifications and the like. The above-mentioned problem can be solved at a glance by performing image vectorization processing in parallel on the same screen while displaying image data as I learned. In addition, the original drawing is
Even if it is used, the following figure is faithfully reproduced.
Simple abstractions rather than complex ones
Is intuitive and easy to use.
We found that it was suitable as a figure to be drawn.

[0009] The present invention has been made based on the above-described knowledge, and a display graphic in a display control device is simplified.
It is an object to provide a display control device that can be simply created and set .

[0010] In order to achieve the above object, or to the present invention
In such a display control device , a drawing unit and the drawing unit
And a display control unit that performs display based on the figure created using
Have. Here, the display control unit determines the individual table to be executed.
A set of processing directives from a plurality of reference information specifying the contents to be indicated
Processing instructions corresponding to a series of display contents to be controlled.
Set multiple sets of words and decode the processing instructions
By performing a display operation corresponding to the decrypted content,
Delivered via an external device such as LC via a communication line
The display corresponding to the state information is enabled. Also
The drawing unit is shown in FIG. 1 and FIG.
Image data conversion means (22) for converting an original drawing (12) drawn on an arbitrary page (10) into image data;
By manual instruction on the play display screen (88)
At least the coordinate data of the indicated position (18) can be entered.
Data input means (26) and the data input means (26)
Create vector data based on data imported from
Vector data creation means (28)
To the image data created by the data conversion means (22)
The corresponding image data figure and the vector data
Corresponding to the vector data created by the data creation means (28).
Vector data figures can be displayed on the display screen (88).
Display means (24) and the created vector data can be stored
Vector data storage means (34).

Further, the above-described image data graphic is directly
Basic multiple types of shapes and display attributes such as lines and arcs
In the approximation process, and display the approximation result on the display screen (88) described above.
, While the approximation result is described above.
By selecting data using the data input means (26),
Vector data graphics to be created and some of their display attributes
Or all can be created. Furthermore, its created
Vector data graphics and display attributes, and any graphics
Prepared for display on the display screen of the display
Reference information in a processing instruction word as exemplified in FIG.
Further comprising means for associating with each other;
The operation, the created vector data figure and the processing instruction
And related operations can be performed in a series.
And In addition, the third method enables display of image data graphics.
1 plane (16) and vector data figure can be displayed
The display screen (88) described above with the second plane (20)
And both planes (16) and (20) overlap each other.
Preferably, display is possible.

[0012]

According to the above construction, the original drawing (12) to be vectorized by using the image data converting means (22) is converted into image data from the paper (10) of the specification or the like, and the correction means (32) , The image data is developed and displayed on the image data display plane (16) in the display means (24). Therefore, the data input means (26)
The following figure (14) is completed by making corrections such as enlarging or reducing the display figure using.

Next, the data input means (26) is switched to the vector data creating means (28), and
Data types, such as straight lines and arcs.
Approximation with display attributes such as color and display color, and the approximation result
Is displayed on the display screen (88) described above. The display screen (8
8) The above approximation results can be obtained, for example, by using the data input
Vectors to be created by selecting in (26)
Some or all of the data
Is done. In this process, the required vector data graphic
Is not created, data for specifying a figure such as a position coordinate or a figure shape is input while tracing the above-mentioned diagram (14) from above, for example. Then, the vector data creating means (28) converts the input data into vector data, and places the vector data graphic on the second plane (20) for displaying vector data.
Display (15). Therefore, the vector data is corrected as necessary to determine the vector data graphic (15), and the vector data is stored in the data storage means (34), thereby completing a series of graphic creation operations. Continued
And the vector data graphics and
And display attributes and arbitrary figures
References in processing directives prepared for display above
The same operation is performed by associating information with each other.
On the display of
It is done in a series.

[0014]

As described above, the original drawing drawn on the paper (10)
(12) is converted into image data as it is and displayed.
Since the configuration data graphic (14) is used as a lower diagram when the vector data graphic (15) is created, a graphic having a required shape can be reliably drawn by a relatively simple procedure. Furthermore, approximation processing of the image data figure (14) was performed.
The vector data figure (15) and
Since the display attribute is configured to be created, the display control device
It is possible to easily create a figure suitable for. Also, figure creation process
And the process of setting processing instructions can be performed in series,
Processing instruction words for shape display can be easily created. Furthermore Table <br/>示画surface (88), image data graphic (14) and vector data
Since it is configured with data graphics (15) capable of two planes display duplicate each other (16) (20), figure (14) modifications and necessary vector data graphic (15) of creation can be easily etc. , Has many advantages.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter , a display control device according to the present invention will be described with reference to an external device.
A description will be given based on an example using a PLC as a device.

As shown in FIG. 3, a display control device (36) embodying the present invention is connected to various computers (40) via a communication line (38) in a LAN system substantially similar to the conventional one. Alternatively, it is connected in parallel with an external device group composed of a PLC (42), a data input device such as an image scanner (44), a data output device such as a printer (46), or a large-capacity storage device (48). , The data is exchanged between the devices.

[0017]

[Circuit Configuration of PLC] The PLC (42) to which the display control device (36) is accessed as its external device is provided for each required function as shown in a block diagram in FIG. The circuit is unitized, and each unit can be added in parallel via a bus line (50) as necessary, so that the functions achieved as a whole PLC (42) can be increased or decreased. (For example, product number “C2000H” manufactured by OMRON Corporation).

In this embodiment, a CPU unit (52) for controlling the entire PLC (42) and a target system (5
4) an input unit (58) that enables the direct capture of the detection signal (56) sent from the output unit that enables the output of a predetermined control signal (60) to the target system (54). 62) and memory unit (64) for storing various data
And a computer link unit (66) that enables predetermined data communication with the display control device (36) as a basic unit, and the CPU unit (52) constantly monitors the change state of the input / output means. When a data change such as a new data input is recognized, necessary arithmetic processing is performed, and then the corresponding address on the memory unit (64) is accessed to rewrite the contents, or the data is output to the output unit (62). Is transmitted.

The storage location of the state information MD input / output to / from the target system (54) may be a passive component such as a level gauge or a limit switch provided on the target system (54) to be controlled or displayed. Active devices such as relays and motors are secured on the memory unit (64), and the input / output data is for word data such as numerical values, and the word device is for bit data such as on / off information. Is set in the memory unit (64) so that the bit device can specify the storage location by addressing. Therefore, the memory unit can be accessed from inside or outside the PLC (42).
By simply designating and accessing an arbitrary word device or bit device in (64), the corresponding position of the target system (54) can be controlled or information MD relating to the operation state can be individually extracted. I have.

[0020]

[Circuit Configuration of Display Control Apparatus] The display control apparatus (36) is integrated with the above-mentioned PLC (42) in a console of a target system (54) or the like, or is independently arranged and provided separately. It is used as a data creation, operation and display panel for 54).

More specifically, as shown in FIG.
While a display (72) selected from various display means such as CRT, EL, plasma or liquid crystal is arranged so as to close an opening (70) provided at a central position in front of (68),
A socket (78) for detachably attaching a plug (76) of a keyboard (74) below the display (72);
A reader / writer socket (82) for inputting / outputting data to / from the card (80) is arranged.

A display control circuit (86) shown in FIG. 4 is housed inside the main body case (68), while the display (7) shown in FIG.
The front of the display screen (88) in (2) has a transparent touch panel (9
0) to cover in close contact. This touch panel (90)
An instruction by pressing with a fingertip or a dedicated pointing device (92) is captured and analyzed via a touch panel controller (94), and is manually operated during operation of the entire system, and at the time of drawing, which will be described in detail later. Enables input of coordinate data.

The basic configuration of the display control circuit (86) is substantially the same as that of a general personal computer, and a CPU and various memories (98) (100) (102) (10) are connected via a bus line (96).
4) Alternatively, a graphic controller (106) is connected, and a CPU (97) performs a predetermined arithmetic operation according to a system program stored in a memory (98), and a keyboard (I / O controller) (108). 74), and various calculation results appropriately stored in the working memory (100) are stored in the graphics memory (10
4) The image data previously stored in the video RAM (110) is developed by the graphic controller (106) using the image data stored in advance, and a display corresponding to the content written in the video RAM (110) is displayed on the display (72). Do with.

Further, as shown in FIG. 1, the video RAM (110) has at least two planes (1) for processing an analog data graphic (14) and for processing a vector data graphic (15).
6) By providing corresponding to (20), figures of different data formats can be displayed on the same screen (8) of the display (72).
8) Necessary plotting processes such as correction and deletion can be performed independently of each other while being displayed on top of each other.

Further, the computer link unit (66) on the PLC (42) side and an image are transmitted via an algorithm specialized for the circuit configuration of the PLC (42) or a communication controller (112) operated by a general-purpose communication program. The scanner (44) is connected to the LAN via a serial communication line (38), and can exchange data with each other.

[0026]

[Structure of processing instruction word] The display control device (3
In 6), a graphic such as a frame of a table or a graph, such as a base screen that does not require any change in display contents, or a graphic (15) as shown in FIG. One file number is designated for each required display unit, and the data is stored in advance in the graphic memory (104).

On the other hand, of the state information MD indicated by the bit or word device configured in the memory unit (64) of the PLC (42), necessary information is displayed at appropriate times by the display controller (3).
6) The work instruction word W illustrated in FIG. 7A, which is stored in the event data memory 102 in advance, is intermittently read in the work memory 100 on the side of FIG. By reading the data and executing the operation of the content specified by the event name T of each processing instruction word W while referring to the state information MD extracted from the PLC (42), the PLC (4
2) A display operation that changes in response to a change in the content of the bit device or word device on the side is performed.

That is, the basic structure of the processing instruction word W is as follows.
As illustrated in FIG. 7A, a file number F of a base screen on which a display control operation is to be performed, an event name T for specifying an operation content to be performed on the base screen, and a reference for each execution event And reference information d including one or a plurality of pieces of data to be executed, and the number of processing instruction words W corresponding to the number of events to be executed on each base screen is stored in the event data memory ( 102).

For example, the processing instruction word WL shown in FIG.
Is the file number F in the graphics memory (104).
On the base screen stored as 1, for example, the car graphic (15) shown in FIG. 6 (a) stored as the file number F2 is displayed on the display (72) as shown in FIG. 6 (b). Display plane (20) of vector data on screen (88)
In addition to being expanded and displayed above, the display color of the figure (15) is changed according to the value of a specific bit device on the PLC (42) side. That is, the file number F1 of the base screen, the event name T starting with, for example, "L" for specifying the call of the figure, the file number F2 for specifying the figure to be called, and the address of the bit device on the PLC (42) side referred to when the figure is displayed A1, information M1 for specifying a color when the bit device is "1" or "0", and coordinate data X1 on a screen for displaying a figure.

On the other hand, in contrast to the above, the processing instruction word WT shown in FIG. 7C transmits predetermined data to the PLC (42) side in conjunction with a pressing operation on the touch panel (90), and
2) Alternatively, it is possible to control the target system (54) connected thereto, from the file number F1 of the base screen, the event name T starting with, for example, "T" for specifying the touch panel operation, from the touch panel (90). Input coordinate range X2 · X on the touch panel (90) that enables the input operation of
3. The address A2 of the device on the PLC (42) side to which data is to be written in conjunction with the pressing operation of the touch panel (90), the momentary bit writing where data writing is limited to the pressing time of the touch panel (90), or It comprises an operation mode M2 for specifying a word write overwriting a value, and word data to be written or bit position information D in a word.

[0031]

[Operation of Display Control Apparatus] Next, the operation of the display control apparatus (36), in particular, the drawing operation of the display control apparatus (36) will be described in further detail with reference to the flowcharts shown in FIGS.

First, at step (200) in FIG. 8, the power switch is turned on to start the display control device (36).
In step (201), a predetermined data communication is performed with the PLC (42) side, and the entire system is automatically operated, or only the display control device (36) is operated alone to change the processing instruction word W. A selection is made as to whether the registration is in an offline state. Normally, the contents of the IC card (80) are initialized at the start of use, and data dedicated to the embedded system is not set in either the event data memory (102) or the graphic memory (104). Then, the process proceeds to the event data registration mode starting from step (210) in FIG. 9, and necessary data setting processing is performed.

Further, when it is determined in step (211) that the image data to be stored in the graphic memory (104) is being created, a drawing process starts from step (220) in FIG. The present invention is characterized by such a drawing processing method.In step (221), first, a figure (12) drawn on a paper (10) such as a specification is used as an original drawing, and an image scanner (44) is used. After being converted into image data, it is taken into the display control device (36). The image data captured in the display control device (36) is further developed on a video RAM (110) for image data in step (222), and the display of the graphic (14) is performed on the corresponding plane (16). Do.

Thereafter, the position or size of the displayed graphic (14) is changed, and the display contents are added or removed as necessary (step (223)), and the image graphic (14) is changed in step (224). When it is determined that the correction for has been completed, the process enters the trace mode from step (225).

In the trace mode, the accessible plane is shifted from the above-described plane (16) for displaying image data to the plane (20) for displaying vector data.
The above modified image graphic (14) is shown in the following figure, and by tracing the image graphic (14) on the screen (88), the required graphic can be easily vectorized.

In the present invention, the following image diagram
Shape (14) is approximated in advance with straight lines and circular arcs, etc.
While the processing result is displayed intermediately, the operator
By selecting fruits, vector data figures
Can be created. At this time, display attributes such as display colors are the same.
Sometimes you can choose. The operator himself has a straight line, circular arc, etc.
It is needless to say that drawing can be performed by judging. In addition, by using the touch panel (90) provided on the screen and tracing it sequentially with a pointing tool (92) such as a pen tip, the traced coordinates are continuously imported into the device. It is. On the other hand, in step (225), the input position coordinates are detected at every set time, and the position coordinates are detected in step (226).
If it is determined that is different, the position coordinates are stored (step (227)), and the stored position coordinates are displayed as points on the plane (20).

Further, when it is determined in step (228) that the trace mode has been completed, in step (229) the position coordinates are converted into a series of vector data, and
The data is stored in a video RAM (11
0), and the figure (15) is displayed on the corresponding plane (20) (step (230)). After making necessary corrections to this figure (15), the file number F2 is specified in step (231) and stored in the graphic data memory (104), thereby completing a series of figure creation operations.

When all the necessary base screens or graphics have been created, the process of registering event data starts from step (212) in FIG. This operation is performed in an interactive manner, and prompts the input of necessary data while the display control device (36) determines the content of the data to be input. In a state where the base screen F1 to be processed is opened, After performing the input operation of the event name to be executed in step (212), the content of the event to be executed is determined from the initials of the input event name, and the input of the necessary reference information d is performed in step (213). Be prompted.

When the set contents of the reference information d are determined, after the determined contents are stored in the event data memory (102) in step (214), the process proceeds to step (215) for all necessary events. It is determined whether or not the processing instruction word W has been registered, and if “NO”, the process proceeds to step (21).
Returning to the event name input of 2), the process returns to the registration of the next processing instruction word W. If “YES”, the process proceeds to step (216) and ends.

When the data creation operation described above is completed,
Move to the online operation of step (202) in FIG.
(42), in parallel with the communication processing operation for transferring necessary data, or after fetching all necessary series of data, display processing of each event in step (203) is performed, and the PLC The display operation corresponding to the data change on the (42) side is performed.

[0041]

[Other Embodiments] As described above, instead of the apparatus automatically intermittently capturing and storing continuously input position coordinates, the apparatus manually selects and inputs position coordinates to be points. It may be. Further, in addition to batch conversion of input position data into vector data after a series of traces shown in (14) below is completed, vector conversion may be performed every time one or more position data is input.

[0042]

Further, a method of tracing the image figure (14) is replaced with a touch panel (90) and various pointing devices such as a mouse and a light pen, or a keyboard.
Needless to say, the cursor movement according to (74) can be used. Also, the display on the screen (88) is not limited to providing separate video RAMs for image data and vector data, as well as enabling processing such as individual correction while allowing both data to be displayed redundantly. For example, data processing may be performed by software using a program. The display color or display time shown in FIG.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a drawing state according to the present invention.

FIG. 2 is a schematic diagram showing a basic configuration of the present invention.

FIG. 3 is an explanatory diagram showing an overall configuration showing an example in which the present invention is implemented.

FIG. 4 is a block diagram showing an electrical configuration of a display control device and a PLC.

FIG. 5 is a partially broken perspective view showing a schematic configuration of an external shape.

FIG. 6 is an explanatory diagram showing an example of a screen configuration, in which (a)
Indicates a display figure, and (b) indicates a display state of the figure on the screen.

7A and 7B are explanatory diagrams illustrating a specific configuration of a processing instruction word, wherein FIG. 7A is a basic configuration, FIG. 7B is a configuration for calling and displaying a graphic, and FIG. Each configuration that enables touch input above is shown.

FIG. 8 is a flowchart showing an overall operation procedure.

FIG. 9 is a flowchart illustrating a procedure of an event data registration operation.

FIG. 10 is a flowchart illustrating a procedure of a drawing processing operation showing an example of implementing the present invention.

[Explanation of symbols]

 (10) Space (12) Original drawing (14) Image figure (15) Vector figure (16) Image data display plane (18) Drawing position (20) Vector data display plane (22) Image data conversion means (24) Display Means (26) Data input means (28) Vector data creation means (32) Image data correction means (34) Storage means (36) Display controller (44) Image scanner (72) Display (88) Display screen (90) Touch panel (92) Pointer (110) Video RAM

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-107380 (JP, A) JP-A-1-251090 (JP, A) JP-A-1-169511 (JP, A) JP-A-1- 126717 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06T 9/00-11/80 G09G 5/00-5/40 G06F 3/00-3/153 340

Claims (2)

(57) [Claims] 1. A drawing unit and a diagram created by using the drawing unit
A display control device comprising a display control unit for performing display based on the shape.
The display control unit is a plurality of pieces of reference information that specify individual display contents to be executed.
Form a set of processing directives in a series of displays to be controlled
Multiple sets of processing directives are set according to the
Display instruction corresponding to the decoded content
And transfer it to an external device via a communication line.
Display that corresponds to the status information
In addition, the drawing unit described above includes an image data conversion unit that converts an original drawing drawn on an arbitrary page into image data, and a manual instruction on a display screen of a display.
Input at least the coordinate data of the indicated position.
Data input means , based on data taken from the data input means,
Vector data creating means for creating vector data, and an image created by the image data converting means described above.
Image data corresponding to the image data
To vector data created by vector data creation means
Corresponding vector data figures can be displayed on the display screen
Display means and a vector data for storing the created vector data.
Data storage means, and stores the above-described image data graphic in a plurality of basic types of diagrams.
Approximate the shape and display attributes.
While making it possible to display it on the display screen that was created,
Vector data graphics and some of their display attributes or
All can be created, and furthermore, the created vector data graphics and display attributes,
To display arbitrary figures on the display screen of the display
The reference information in the processing directive prepared in
In addition to the means for associating, the drawing operation described above, and the created vector data graphic
The operation of associating with the processing instruction word can be executed in a series.
A display control device . 2. A display device according to claim 1, wherein a display screen of said display means is a first plane capable of displaying an image data graphic.
And a second play for displaying a vector data graphic
And both planes can be displayed overlapping each other.
The display control device according to claim 1, wherein