JPH0693173B2 - Image display controller - Google Patents

Description

TECHNICAL FIELD The present invention relates to a device for displaying various image blocks such as figures, graphs, numbers and characters at arbitrary coordinate positions on a screen such as a CRT and a plasma display. In particular, the present invention relates to an image display device capable of quickly and easily changing the display of all or part of each image block according to data sent from an external circuit.

(Prior Art) Such an image display device is usually connected to a host computer online to monitor an operating state of a plant including tanks, pipes, valves, etc. and a progress status of a process in a machine factory. It is used as a display terminal (see, for example, Japanese Patent Publication No. 52-6130).

However, the conventional image display device only has a function of changing the display of a predetermined image block on the screen according to a control command from the host computer, and the user needs to create the control command on the host computer. was there. At this time, the user has to be proficient in creating a program using a large number of control commands, and there is a problem that the burden for that is great.

Therefore, the applicant has proposed an image display control device capable of automatically changing the display of the image block according to the binary data (state information MD) sent from the host computer (Japanese Patent Application No. 63-63). -305414).

As shown in FIG. 11, the image display control device includes a graphic data storage means (6) for storing graphic data GD for drawing each image block on the screen, and an array of the status information MD of binary data. State information storage means (61) that should be stored as, and event data storage means (62) in which a display change processing word W'described later is stored for each image block.
And system control means (63) for decoding the display change processing word W'and executing a display change procedure for predetermined graphic data.

The display change processing word W'is an event code TN for identifying an image block to be subjected to display change, address data AD representing a storage position of state information corresponding to the image block in the state information storage means, and A file code FN for calling the graphic data corresponding to the image block from the graphic data storage means, display change data ZD preset according to the binary value of the state information MD for the image block, and the image block of the image block. It includes coordinate data HD representing the display position on the screen.

In the above device, status information sent from an external circuit
MDs are sequentially written into a predetermined address of the state information storage means (61), and the value of the state information MD changes with time.

The system control means (63) sequentially reads the display change processing word W'stored in the event data storage means, decodes the read display change processing word, and executes the following procedure.

Based on the address data AD included in the display change processing word W ', the status information MD corresponding to the address data is read from the status information storage means (61), and the file code FN included in the display change processing word is read. Based on this, the corresponding graphic data GD is called from the graphic data storage means (6).

At this time, the system control means (63) defines the drawing position of the graphic data GD based on the coordinate data HD included in the display change processing word W '. Also, the status information
Depending on the MD value (“0” or “1”), the display change processing word W ′
Interprets the meaning of the display change data ZD included in the display change data ZD, and applies the display change processing to the graphic data GD based on this.

As a result, the graphic control signal generated by the system control means (63) is supplied to the image display section (64),
As a result, the display of all or part of a predetermined image block on the screen is changed.

In the image display control device, it is possible to automatically change the display of a predetermined image block according to the binary data (state information MD) representing the contents of the display change.
The host computer only needs to be provided with a simple function of arranging the monitoring data sent from the instrumentation system in the binary state information MD and outputting it, and the conventional screen control command creation is not required. is there.

(Problems to be Solved) According to the image display control device, the burden on the user is remarkably reduced as compared with the related art, but the following new problems occur.

That is, in the above device, the number of file codes FN that can be included in one display change processing word W'is one, and therefore, to change the display of an image block at a certain position on the screen to two or more forms. However, it is necessary to register in advance the number of display change processing words that differ only in the file code, and the procedure is complicated. Further, the host computer needs to transmit the status information MD for all the display change processing words, which causes a problem that the load of the host computer becomes heavy.

An object of the present invention is to reduce the number of display change processing words to be registered when changing the display of an image block at a fixed position on the screen, which simplifies the procedure for registering the display change processing words. An object of the present invention is to provide an image display control device that reduces the burden on the host computer.

(Means for Solving the Problems) In the image display control device according to the present invention, as shown in FIG. 1, a) Graphic data GD for drawing a plurality of image blocks is stored together with a file code FN. Graphic data storage means (6), and b) status information indicating the file code by a predetermined bit length.
The MD has status information storage means (61) to be respectively stored at predetermined addresses, and c) a plurality of image blocks to be selectively displayed at the same display position from image blocks at other display positions. Event code TN, address data FA indicating the storage position in the state information storage means of the state information MD indicating the file code FN corresponding to the image block to be selected, and coordinate data HD indicating the display position of the image block on the screen. And a display change processing word W including a display change processing word W stored in each of the image blocks at different display positions, and d) decoding the display change processing word W in the event data storage means (62). Then, the predetermined state information MD is read from the state information storage means (61), and the graphic data GD of the file code FN designated by the state information and the coordinate data HD of the display change processing word W are read. Based on, to create a graphic control signals for the image display unit (64), the system control means (63) for sending the image display unit (64) from the constructed.

(Operation) In the event data storage means (62), the display change processing word W is registered in advance for each image block at a different display position. The display change processing word W is stored in the event data storage means (62).
The procedure for registering can be easily performed interactively as described later.

The state information MD sent from the external circuit is sequentially written into a predetermined address of the state information storage means (61), and the value of the state information MD changes with time.

The system control means (63) is an event data storage means (62).
The display change processing words W stored in are sequentially read,
The display change processing word is decoded, and the following procedure is executed based on the result.

Based on the address FA included in the read display change processing word W, the state information MD having a predetermined bit length stored in the address FA is read from the state information storage means (61), and based on the state information MD. , The corresponding graphic data GD is called from the graphic data storage means (6).

At this time, the system control means (63) defines the drawing position of the graphic data GD based on the coordinate data HD included in the display change processing word W.

As a result, the system control means (63) creates a graphic control signal and supplies it to the image display section (64). As a result, the display of a predetermined image block on the screen is partially or entirely changed.

Further, the event code TN included in the display change processing word W can be displayed at a position near the image block which is the display change target, if necessary.

In addition, the system control means (63) is a state information storage means (6
The status information MD set in 1) is repeatedly read, the value of the status information is constantly monitored, and when there is a change in the status information MD at any address, the display change processing word of the event data storage means (62). The display change processing similar to the above is also possible by searching W, calling the display change processing word W including the address data FA indicating the storage position of the changed state information, and decoding it.

(Effect of the Invention) According to the image display control device of the present invention, it is possible to change the value of the state information MD to be sent from the host computer,
At an arbitrary display position, a plurality of image blocks to be displayed at the position can be switched and displayed. At this time, the display change processing word may be registered for each image block at different display positions, and it is not necessary to register for each image block to be switched and displayed at the same position, so that the registration procedure is simplified.

Also, as the number of display change processing words to be registered decreases, the amount of status information to be sent by the host computer decreases,
The burden on the host computer is reduced.

(Examples) The examples are for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope.

An embodiment of an image display control device according to the present invention will be described in detail below with reference to the drawings. Although the image display control device also has a function as a conventional general graphic display device, illustration and description of these well-known configurations are omitted.

The image display control device (1) is connected to the host computer (2) online as shown in FIG. 2, and the communication controller (13) and the keyboard (12) for receiving the data from the host computer (2). ROM with I / O controller (14) for taking in input signals from CPU, CPU (15), system program (Figs. 9 and 10) for executing the later-described drawing mode and operation mode, etc.
(4), various RAM (41) (42) (43) (44) described later, the register (3) for controlling the data read timing by the communication controller (13), and the drawing operation of the display (11) It has a controlling graphic controller (5).

Of the four RAMs, the state information RAM (41) corresponds to the state information storage means, the event RAM (42) corresponds to the event data storage means, and the graphic RAM (43) corresponds to the graphic data storage means. Further, the system program stored in the ROM (4) corresponds to the system control means. The operation of these RAMs will be described later.

Video RAM (44) is a graphic controller (5)
When controlling the drawing operation of the display (11) by
It is used to develop the data in the graphic RAM (43) into a screen image.

On the other hand, the host computer (2) is a general digital computer or a programmable controller, and has an input circuit (21) for receiving monitoring data from the instrumentation system and a memory for the received monitoring data according to a predetermined procedure. From the processing circuit (22) for storing in the inside, and the output circuit (23) for reading the data from the processing circuit (22) and sending it to the image display control device (1) together with the strobe signal SR and the start signal ST. It is configured.

FIG. 3 shows the correspondence between the address space of the state information storage memory (24) provided in the host computer and the address space of the state information RAM (41) of the image display control device. Also, as shown in the figure, 8-bit length storages composed of 0th bit to 7th bit are provided only for necessary addresses (0th address to Nth address).

The monitoring data supplied to the host computer (2) is "0" according to the procedure preset in the processing circuit (22).
After being converted into a data string (state information MD) of “1”, the 0th bit of the 0th address to the 1st bit of the 0th address, ..., The 0th bit of the 1st address are stored in the memory (24). ... are stored in that order.

When one cycle of monitoring data from the instrumentation system is stored in the memory (24) of the processing circuit, the data in the memory (24) is changed by the operation of the output circuit (23) to the image display control device (1).
Status information RA sent to the communication controller (13).
Stored in M (41). At this time, the data stored in the memory (24) of the host computer is moved to the storage location indicated by the same bit and address in the status information RAM (41) of the image display control device so that the contents of both memories become the same. , Read and write operations are controlled.

FIG. 4 shows the structure of the display change processing word W stored in the event RAM (42). The structure of the display change processing word W when changing the display of the valve in the example shown in FIGS. 5 to 7 will be specifically described below.

The screen of FIG. 5 is composed of three image blocks showing the tank (7), the pipe (71) and the valve (72). The tank (7) and the pipe (71) are created as a fixed image of the display (11) as shown in FIG. 6, and the graphic data thereof is stored in the graphic RAM (43) together with the file number F1 (for example, 1). . Further, as shown in FIG. 7, the valve (72) is arbitrarily selected from three types of image blocks (72) (73) (74) that can be called relative to the fixed image. The graphic data of the image block is registered in the graphic RAM (43) together with the file numbers F2, F3, and F4 (for example, No. 32, 33, and 34).

The file number is represented by 8-bit status information (for example, "00100000" for address 32) as described later.

When the display change processing word W is registered in the event RAM (42) of FIG. 4, the apparatus is set to the drawing mode and the registration procedure shown in FIG. 9 is performed by operating the keyboard (12).

By key-setting the file number F1 (here, number 1) of the fixed image, the file number is stored in the address 0 of the event RAM (42) shown in FIG.

Next, the address A1 in the status information RAM (41) that should store the status information (for example, "1") for calling the fixed image in FIG.
By setting the bit address B1 (for example, A1 = 0, B1 = 0), these data are stored in the first address and the second address of the event RAM (42), respectively.

Further, the status information RAM (41) has an address A1 and a bit address B.
Bit of status information stored in 1 is ON (“1”) or OFF
(“0”) ON indicating when to call the fixed image
Set / OFF data S (for example, "1"). The data is stored at the third address of the event RAM (42).

Next, the type of image block (event) to be changed,
In other words, data that distinguishes whether it is a mark such as a valve, a library that is more complicated than the mark, or a time is displayed (for example, "1" for mark display). Set. The data is stored at the fourth address of the event RAM (42).

When the event name TN of "valve" is displayed in the vicinity of the valve (72) as shown in FIG. 5, after inputting the display start position of the event name on the screen, the "valve" key-in is performed. These data are stored in the fifth and sixth addresses of the event RAM (42).

Next, the address A2 and the bit address B2 (for example, A2 = 0, B2 = 1) in the status information RAM (41) that should store the status information for changing the display color of the image block of the valve in FIG. 7 are set. By setting, these data are stored in the 7th address and the 8th address of the event RAM (42), respectively.

Furthermore, the address A3 (A in the example of FIG. 3 in the status information RAM (41) of the status information indicating any of the registered file numbers F2, F3, and F4 of the image blocks of the three types of valves shown in FIG.
By key-setting (3 = 1), the address data is stored in the ninth address of the event RAM (42).

After that, the status information of the address A2 and bit address B2 is turned on.
When it is (“1”) and OFF (“0”), key-in the ON / OFF color information ZD that indicates which color the mark (bulb) should be applied to. For example, when it is ON, the red designation key is operated, and when it is OFF, the green designation key is operated. The ON / OFF information ZD is the event RA
Stored at address 10 of M (42).

Finally, coordinate data HD (X and Y shown in FIG. 5) indicating the display position of the mark (valve) on the screen is input. The coordinate data is stored in the 11th address of the event RAM (42).

By repeating the above procedure for creating the display change processing word W for all the events for which the display change should be performed, the event RA
Registration of M (42) is completed. This procedure can be easily performed by an interactive form of the display (11) and the user's key operation.

If the registration file number (F2, F3, or F3) is directly set instead of the registration file number storage address A3 in FIG. 4, the image display control device (special feature) proposed by the applicant shown in FIG. Display change processing word W'in Japanese Patent Application No. 63-305414)
Will be configured.

Therefore, the display change processing word W including the registered file number storage address A3 and the display change processing word W ′ including the registered file number itself can be mixed and registered in the event RAM (42). In this case, in the operation mode described later,
When the former display change processing word W is decoded, status information
When the file number of the image block (mark or library) is indirectly designated via the data in the RAM (41) and the latter display change processing word W'is decoded, it is included in the display change processing word. The file number is directly specified by the data to be stored.

Next, the operation in the operation mode in which the image display control device (1) according to the present invention is connected to the host computer (2) will be described with reference to FIG.

When the apparatus is powered on, it is first determined whether or not it is online with the host computer, and if NO, the drawing mode is set. In the case of YES, the data communication processing from the host computer (2) to the image display control device (1) is performed, and the state information MD is written in the state information RAM (41).

Next, the contents of a large number of display change processing words W stored in the event RAM (42) are read in order and the following procedure is executed.

First, based on the screen call address A1 and the screen call bit B1 included in the read display change processing word W, the status information stored in the address (A1, B1) of the status information RAM (41).
The value of MD is read, and the read value is compared with the value of the screen call ON / OFF data S included in the display change processing word. If they do not match, it is determined that the host computer (2) has not instructed the display change, and the process returns to the data communication process.

If the status information MD matches the ON / OFF data S,
A fixed image is called from the graphic RAM (43) based on the file number F1 included in the display change processing word W.

Next, the mode is branched according to the type of event included in the display change processing word W, and the processing is advanced for each mode.

In the event RAM (41), the display change processing word W containing the registered file number storage address A3 and the display change processing word W'containing the registered file number instead of the address A3 are registered in a mixed manner. When the display change processing word W is decoded, the file number of the mark or library is indirectly designated via the data in the status information RAM (41), and the mark or library is displayed (indirect display). It On the other hand, when the latter display change processing word W'is decoded, the file number is directly specified by the data included in the display change processing word, and the mark or the library is displayed (direct display). .

For example, in the case of an indirect display of a mark (valve) as shown in FIG. 10, an event is displayed at the screen position specified by the event name start position based on the event name start position and the event name TN included in the display change processing word W. Draw the name TN ("bulb").

Then, based on the event display calling address A2 and the event display calling bit B2 included in the display change processing word W, the status information data MD is transferred from the address (A2, B2) of the status information RAM (41).
Is read and it is determined whether the value of the read data MD is “ON” or “OFF”.

If the judgment result is "ON", it is stored in the address A3 of the state information RAM (41) based on the registered file number storage address A3 included in the display change processing word 8
The bit status information MD (for example, "00100000") is read and the graphic RA
The graphic data GD of the image block (valve) registered in M (43) is read. Furthermore, the screen position designated by the coordinate data HD included in the display change processing word W is turned on.
/ OFF Displays the image block (bulb) in the color (red) when the color information is "ON".

If the determination result is "OFF", the 8-bit status stored in the address A3 of the status information RAM (41) is based on the registered file number storage address A3 included in the display change processing word W. The information MD is read and the status information MD is read.
Graphic data of the image block (valve) registered in the graphic RAM (43) with the file number as
Read GD. Further, the ON / OFF color information is "OF" at the screen position specified by the coordinate data HD included in the display change processing word W.
The image block (valve) is displayed in the color of "F" (green).

Then, the process returns to the data communication process, and the display change based on the next display change process word W is continued.

By the above procedure, the screen of the display (11)
It will change every moment according to the data sent from the host computer (2).

In the image display control device (1), the host computer (2) converts the monitoring data from the instrumentation system into status information, and a predetermined address of the memory (24) shown in FIG. Need a program to store in. However, this program moves the monitoring data as it is to the specified address of the memory (24) as status information and the graphic RAM (4
Since it is a simple process consisting of the process of creating the 8-bit state information designating the file code in 3), it is much easier to create than a conventional program including a complicated control command.

In the image display control device (1), since the event name TN is written in the event RAM (42) shown in FIG. )
When it is desired to correct the registration of, the event RAM (42) can be cross-searched using the event name as a keyword. The results are compiled into a chart such as Figure 8,
It is output. Therefore, the user can easily rewrite the event RAM (42) while referring to this chart, which is convenient.

The drawings and the description of the above embodiments are for explaining the present invention, and limit the invention described in the claims,
Or it should not be understood as reducing the range.

The configuration of each part of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made within the technical scope described in the claims.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of an image display control device according to the present invention, FIG. 2 is a block diagram showing a concrete configuration of the image display control device and a host computer, and FIG. 3 is a host computer. FIG. 4 is a diagram showing a correspondence relationship between the memory of FIG. 4 and the state information RAM, FIG. 4 is a diagram showing a configuration of a display change processing word stored in the event RAM, FIG. Is a diagram showing a fixed image portion constituting the screen, FIG. 7 is a diagram showing image blocks to be changed in display, FIG. 8 is a chart showing a result of cross search with an event name as a keyword, and FIG. 9 is FIG. 10 is a flowchart showing the operation in the drawing mode, FIG. 10 is a flowchart showing the operation in the operation mode, and FIG. 11 is a block diagram showing the configuration of the image display control device previously proposed by the applicant. (1) ... Image display control device (2) ... Host computer (11) ... Display MD ... Status information

Claims (1)

[Claims] 1. An arbitrary one image block is selectively drawn from a plurality of image blocks registered in advance at one or more predetermined positions on a screen based on state information MD sent from an external circuit. An image display control device capable of: a) graphic data storage means (6) in which graphic data GD for drawing the plurality of image blocks are stored together with a file code FN; ) Status information indicating the file code by a predetermined bit length
The MD has status information storage means (61) to be respectively stored at predetermined addresses, and c) a plurality of image blocks to be selectively displayed at the same display position from image blocks at other display positions. Event code TN, address data FA indicating the storage position in the state information storage means of the state information MD indicating the file code FN corresponding to the image block to be selected, and coordinate data HD indicating the display position of the image block on the screen. And a display change processing word W including a display change processing word W stored in each of the image blocks at different display positions, and d) decoding the display change processing word W in the event data storage means (62). Then, the predetermined status information MD is read from the status information storage means (61), and the graphic data GD of the file code FN designated by the status information and the coordinate data HD of the display change processing word W are read. Based on, to create a graphic control signals for the image display unit (64), the image display processing apparatus configured from a system control unit (63) sends an image display unit (64).