JPH11238027A - Screen update method and screen update terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To preferentially and minutely a screen-update an object having information to be learnt and to update screen while suppressing the loads imposed on a terminal and a network. SOLUTION: The peculiar update period of plural objects, which are previously stored, is adjusted to an execution time update period whose update period is longer than the peculiar update period by an update interval initial adjustment means 711. A preferential update instruction information processing means 111 decides a preferential update object from plural objects and resets the execution time update period of the decided preferential update object to the peculiar update period based on inputted preferential update instruction information. A screen update means 112 updates the preferential update object at the peculiar update period which is reset and updates the objects except for the preferential update object at the execution time update period.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen updating method and a screen updating terminal for periodically collecting data and updating a screen based on the data.

[0002] Such a screen updating system can be widely applied to man-machines of information control systems such as electric power, power generation, steel and railway.

[0003]

2. Description of the Related Art Conventionally, in plant control, a man-machine system that collects a process state from a sensor at a site and displays the process state on a screen has been used. The object on the screen is linked to control data indicating a process state such as a value indicated by a sensor, and changes its display in accordance with a change in the data.

[0004] The display update cycle of each object is determined in consideration of the change speed of control data linked to the object, the processing performance of the terminal displaying the screen, the network transmission processing performance, the number of objects arranged in the screen, and the like. Decide for each object. For example, an object indicating data with frequent fluctuations, such as the number of rotations of the motor, is defined to be updated in a 0.5 second cycle.
Define to update every second.

[0005] In addition, there are cases where thousands of objects are arranged on the overview screen showing the status of the entire power distribution control system. On this screen, the update cycle of each object is set to a relatively long value. Have been. Even if the control data fluctuates every 0.5 seconds, it is difficult to update such a large number of objects in accordance with the data fluctuation, so the object update cycle on this screen is as long as 4.0 seconds. A value is specified.

When the operator finds an abnormality on this summary screen, the operator opens the screen on a detailed screen having a relatively small number of objects, and looks at data fluctuations there in detail. Here, the update cycle of the object on the detail screen is set to 0.5 seconds.

[0007] In recent years, with the opening of terminal hardware and the spread of the Internet, it is desired to perform monitoring and control with a low-performance terminal such as a portable terminal, or to monitor monitoring data from a remote office via a public line. There is a growing need for want. However, if a low-performance terminal is used or data is collected via a network having a low transmission capacity, update display may not be performed at an update interval defined for each object when a screen is created.

[0008] Since the update processing of objects having the same update cycle is performed uniformly without distinction, the update of all these objects is uniformly delayed. For this reason,
Even if the operator wants to track only the variation of the process data in 0.5 second units in detail, the object expressing it is not updated in 0.5 second units, and the data cannot be tracked in detail.

[0009] In such a situation, the screen update process makes full use of the processing capabilities of the terminal and the network, so that the responsiveness of the screen switching and setting operation performed by the operator deteriorates. Therefore, when monitoring via a low-performance machine or a low-performance network, a dedicated screen must be defined again.

As a system for periodically updating a screen via a network having a low performance or on a terminal having a low performance, a CRT screen display system disclosed in Japanese Patent Application Laid-Open No. 62-136689 is disclosed. In this method, the entire screen is updated at a cycle determined by the update cycle setting unit.

By using this method, the update interval of the entire screen can be extended in accordance with the performance of the machine that updates the screen periodically or the performance of the network. However, this method is based on the premise that the entire screen is uniformly updated, and cannot be applied when the display update cycle differs for each object in the screen.

Further, even if there is an object on the screen where it is desired to follow a change in detail (frequent update), the update interval is uniformly changed over the entire screen. I can't follow.

Further, in the screen display device described in Japanese Patent Application Laid-Open No. Hei 4-296931, an apparatus for determining the update cycle of an object from the importance given to the object is disclosed. This apparatus does not define an update cycle for each object in the screen, but defines the importance of the object. When updating the screen, the importance and the update cycle are associated with each other, and as a result, the update cycle of the object is determined.

In this method, it is possible to determine the update cycle of each object at the time of execution in consideration of the performance of the terminal and the network. However, it is not possible to specify the cycle at which each object should be updated. Can not.

For example, when there are a large number of low-priority objects, all of these objects have the same update period, and all the objects are subjected to update processing at the same timing. While the update processing of these objects is being performed, the update processing of an object having a short update cycle (high importance) is not performed. For this reason, control data indicated by an object having a short update cycle cannot be tracked in detail.

[0016]

The above prior art has the following problems.

(1) The update frequency of an object whose change is to be seen in detail is reduced. In the conventional method, the update process is performed based on the update cycle of the object. If the number of objects with the same update cycle is large, those objects are subject to display update at the same time. Therefore, while the update processing of those objects is being performed, the update of objects with a shorter update cycle is performed. No processing is performed.

[0018] As a result, the update of the object relating to the data which the operator particularly wants to follow the fluctuation in detail may be delayed due to the update of the object relating to the data which does not otherwise.

(2) The load on the terminal / network increases. In the method of allocating the update cycle, which is the target value, to each object, if the number of objects is large or if the performance of the terminal / network is low, the load on the terminal / network becomes very large. In addition, the processing time for data collection and updating and redrawing of an object increases, so that the responsiveness of various operations performed by the operator deteriorates. For this reason,
For a large amount of screen data, redefinition work must be performed to reduce the amount of objects to be updated or reduce the frequency of updating the objects.

An object of the present invention is to provide a screen updating method and a screen updating terminal capable of preferentially and in detail updating an object having information that an operator wants to know, and capable of updating a screen with a reduced load on a terminal or a network. It is to provide a device.

[0021]

In order to achieve the above object, a feature of a screen updating terminal device according to the present invention is that a plurality of objects on a screen are updated by an update priority object and an update priority object other than the update priority object. The object is to update the update priority object at a specific update period having a short update period and to update objects other than the update priority object at a runtime update period having a long update period.

Specifically, the present invention provides the following method and apparatus.

According to the present invention, there is provided a screen updating method for periodically collecting a plurality of data and updating a plurality of objects corresponding to the respective data on a screen based on the collected data. The unique update cycle of each object is adjusted to a runtime update cycle longer than the unique update cycle, and an update priority object is determined from the plurality of objects based on the input priority update instruction information. Resetting the adjusted runtime update cycle of the determined update priority object to the unique update cycle, updating the update priority object with the reset unique update cycle, and excluding the update priority object. A screen updating method for updating the object at the runtime update period.

Preferably, a plurality of objects are reduced and displayed as a summary screen, and each of the reduced displayed objects is updated at the runtime update cycle, and a priority update area designated on the summary screen is displayed on a detail screen. The update priority object in the enlarged and displayed detail screen is updated at the reset unique update cycle.

According to the present invention, there is provided a screen data management means for managing screen data, a screen updating means for updating a screen based on the screen data managed by the screen data management means, and a display updated at an update cycle. An update object screen, priority area setting means for setting a priority area in a priority frame on the screen by designating some of the update objects, and priority update for determining whether the update object falls within the priority area And updating the update object in the priority area based on the priority update instruction information having priority over the update cycle for the priority update object determined to be the priority update object by the object determination means and the priority update object determination means. And a priority update object screen unit. Subjected to.

According to the present invention, there is provided a screen updating terminal device for periodically collecting a plurality of data and updating a plurality of objects corresponding to the respective data on a screen based on the collected data. Screen data management means for storing a unique update cycle in advance; update interval initial adjustment means for adjusting the unique update cycle to a runtime update cycle longer than the unique update cycle; and input means for inputting priority update instruction information And determining the update priority object from among the plurality of objects based on the input priority update instruction information, and adjusting the runtime update cycle adjusted by the update interval initial adjustment means of the determined update priority object. Priority update instruction information processing means for resetting the update priority to the specific update cycle, and the update priority object at the reset specific update cycle. Update the said objects other than updating preferred object to provide a screen update terminal apparatus characterized by having a window updating means for updating by the runtime update period.

According to the present invention, the screen data management means comprises:
Manage screen data. The screen updating means updates the screen based on the screen data managed by the screen data managing means. The update object screen is updated and displayed at the update cycle. The priority area setting means sets a priority area with a priority frame on the screen by designating some of the update objects.

The priority update object determining means determines whether or not the update object is within the priority area. The priority update object screen unit updates the update object in the priority area based on priority update instruction information that has priority over the update cycle for the priority update object determined to be the priority update object by the priority update object determination unit. I do.

This allows the operator to specify the object to be updated on the screen with priority, and for the specified object, returns the update cycle to the originally defined unique update cycle, and updates it with priority. Because it is possible, it has become possible to follow the fluctuation of the data represented by the object in detail.

Further, the same screen data can be used by terminals / networks having a plurality of processing performances without increasing the load on the terminal and the load on the network.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Four embodiments of a screen updating method and a screen updating terminal device according to the present invention will be described below with reference to the drawings.

First, a first embodiment will be described. FIG. 8 shows a screen updating terminal device and a screen updating system configuration according to the first embodiment. The screen updating terminal device 101 is connected to the plant DB 1 via a network.
Data is periodically collected from 02, and a screen is displayed on the CRT 103 based on the data. The screen updating terminal device 101 includes a screen data management unit 113 and a communication unit 11.
4, screen updating means 112, priority update instruction information processing means 111, input processing means 115, and timer means 116
These are connected by data transfer means such as a bus.

The screen data management means 113 includes a CRT 10
3 manages screen data defining the screen to be displayed. This screen data will be described with reference to FIG.

As shown in FIG. 9, the screen data 201 is
It has a screen ID 233 indicating a screen name and a list of update objects to be displayed on the screen. The update object 211 has the following eight attributes.

The on-screen position 211 indicates a display position on the screen. The in-screen size 222 indicates the size in the screen. The symbol 227 indicates the symbol of this object. D
The B address 225 indicates the address of control data in the plant DB associated with this object. The data collected from this is stored in the DB data 266.

The update display specification 228 defines how the DB data is reflected on the display. For example, a content such as "blink display if the value of DB data 266 is 60 or more" is defined.

Attributes indicating how frequently the update object is updated are the original update cycle 223 and the runtime update cycle 224. The value of the update interval specified when the screen was defined is included in the original update cycle 223. In the present embodiment, the screen data management unit 113 copies the value of the original update cycle 223 to the runtime update cycle 224 when acquiring the screen data.

Referring back to FIG. 8, the configuration of the screen updating system will be described. The input processing unit 115 receives an input from an input device such as a mouse, and passes the input information to the priority update instruction information processing unit 111 and the like. Communication means 11
4 communicates with the plant DB 102 via the network.

The timer means 116 can register a periodic time, and periodically updates the screen updating means 112 at the registered time intervals.
Send an update event (update request) to.

The screen updating means 112 displays the screen data managed by the screen data management means 113 on the CRT 103 as a screen. Also, the screen is updated in response to an update event from the timer means 116.

The priority update instruction information processing means 111 receives input information from the input processing means 115 and determines an object to be preferentially updated in the screen.

In order to describe each of the above components in more detail, first, the functions provided by the present embodiment will be described using specific screen operation examples shown in FIGS.

FIG. 10 shows the screen 1 displayed on the CRT 103. On the screen 11, five update objects indicated by 311 to 315 are arranged. As shown in FIG. 12, the update cycle at the time of execution of each update object is all 500 ms. The time required to update each object by the screen update device 101 is 200 ms.

Upon receiving an update event for updating an object having an update period of 500 ms, the screen updating means 112 performs update processing on the update objects 311 to 315 in order. Therefore, the update object 311 starts to perform the second update after 1000 ms has elapsed.

As shown in FIG. 10, when the operator designates the priority area 330 with the cursor 320, the update objects (here, 311 and 312) included in the area are designated.
Will be updated with priority. That is, as shown in FIG.
2, 313, 311, 312, and 314, and the update object 311 can be updated more frequently than in the case of FIG. As a result, as shown in FIG. 12, it takes 600 ms for the update object 311 to start performing the second update.
After the lapse.

As described above, in this embodiment, when the operator indicates an object to be updated with priority,
The update of the object is performed prior to the update of the other objects. Thereby, the operator can follow the variation of the plant data indicated by the object in more detail.

The description of the screen operation examples shown in FIGS. 10, 11 and 12 has been completed.

Next, each component providing the above functions will be described.

First, the operation of each component of the screen updating terminal device 101 when a new screen is displayed will be described.

(1) The screen data management means 113 reads and holds screen data from a disk or the like.

(2) The screen updating means 112 interprets the screen data and displays it on the CRT 103 as a screen.

(3) The timer means 116 initializes the update cycle. This initialization processing is as follows. The timer unit 116 registers the value of the runtime update cycle 224 of each update object in the screen data 201 in the timer management table 5200 in FIG. Timer management table 52
00 manages the screen ID 5201 and the update cycle value 5202 of each update object included in the screen as a pair. If the values of the runtime update cycle 224 of the two update objects are the same, only one is registered.

Next, after the screen is displayed in this manner, the timer means 116 sets the timer management table 5200
The time interval registered in the update cycle list 5202 of FIG.
A normal update event 500a (update command) such as 4 (a) is sent to the screen update unit 112. Screen updating means 112
Receives the normal update event 500a and updates the screen.

The normal update event 500a includes an event ID 501 indicating an update event, a screen ID 502 indicating which screen is to be updated, and an update cycle ID 503 indicating which object on the screen is to be updated. .

Upon receiving the normal update event 500a, the screen update means 112 updates the object supported by the normal update event 500a. That is, for each update object in the screen data 201 indicated by the screen ID 502, an update object whose update time cycle attribute 224 matches the value of the update cycle ID 503 in the update event is updated.

Updating an object means accessing the DB indicated by the DB address attribute 225 of the updated object, setting the data in the DB data attribute 226, and drawing the object based on the update display specification 228. It is.

Next, when there is an instruction of the priority area from the operator, the priority update instruction information processing means 111 executes the processing shown in FIG.
It is determined which update object is designated by the algorithm shown in FIG.

FIG. 15 shows a priority update object selection algorithm (algorithm 1). First, in step 401, the priority update instruction information processing means 111 acquires priority update instruction information. This information is specifically shown in FIG.
As shown in (a), a screen ID 5101, an instruction type 5102 indicating that the instruction from the operator is an area designation,
Instruction data 510 indicating the content of the instruction, that is, the area (x, y, width, height) selected by the operator.
Consists of three.

Next, in step 402, the screen data 201 indicated by the screen ID 5101 of the priority update instruction information is obtained.

Next, at step 403, the screen data 20
Step 404 for each update object in
405 is performed. When the process is completed for all the updated objects, the process proceeds to step 406.

In step 404, it is determined whether or not the update object is to be instructed using the instruction type 5102 and the instruction data 5103 of the priority update instruction information. FIG.
When the operation indicated by is performed, specifically, the position attribute 211 and the size attribute 222 of the update object are compared with the area information (x, y, width, height) in the instruction data 5103 of the priority update instruction information. To see if the update object is contained within the region. If it is included, the process proceeds to step 405;
Return to 3.

In step 405, a priority update mark * is added to the update cycle 224 of the update object at the time of execution.

Next, at step 406, the timer means 11
6 is instructed to initialize the update cycle, and step 407 is executed.
Then, the process ends.

By executing this processing, the update cycle 224 of the update object included in the designated priority area is executed.
All have a priority update mark *. For example, when the operation shown in FIG. 10 is performed, the execution update period 2 of the objects 311 and 312 included in the priority area 330 is changed.
24 are all given a priority update mark *.

Upon receiving the update cycle initialization command, the timer means 116 updates the value of the runtime update cycle 224 of each update object in the screen data 201 with the timer management table 520.
Register again to 0. At this time, if the priority update mark * is attached, the registration is performed with the priority update mark.

After registration, at the time intervals indicated there,
An update event starts to be sent to the screen update unit 112. The events to be sent are in the format shown in FIG. 14B with respect to the cycle with the priority mark, and those in FIG. 14A without the cycle. For example, when the operation shown in FIG. 10 is performed, the update cycle list 52 of the timer management table 5200 is displayed.
In the field 02, 500 and 500 * are registered for the screen 1. After registration, two types of update events with a period of 500 ms, FIG.
The normal update event 500a shown in FIG. 14A and the priority update event 500b shown in FIG.

Next, an update event receiving process performed by the screen updating means 112 will be described with reference to FIG.

FIG. 17 shows an update event processing algorithm (algorithm 2).

First, in step 601, screen data corresponding to the screen ID 501 of the update event is obtained.

Next, in step 602, it is determined whether the update event is a priority update event. That is, it is checked whether or not the value indicated by the update cycle ID 503 has the priority update mark *. If yes, step 603
If not, the process proceeds to step 604.

Next, at step 603, the screen data 20
If the update cycle ID 503 of the update event and the update cycle 224 of the update object coincide with each other for each update object in No. 1, the object is updated. When the match determination and the update processing are completed for all the update objects in the screen data, the process proceeds to step 609.

In step 604, the update cycle ID 503 of the update event and the update cycle 224 of the update
If they match, step 605 and subsequent steps are performed. When the processing has been completed for all the update objects in the screen data, the process proceeds to step 609.

In step 605, the update object is updated, and the flow advances to step 606.

Next, at step 606, the event queue is checked to see if any priority update event has accumulated. That is, the priority update mark * is assigned to the value of the update cycle ID 503 of the update event stored in the event queue.
Check to see if it is marked. If so, proceed to step 607; if not, step 604.
Return to

At step 607, the priority update event is taken out of the event queue, and the routine goes to step 8.

Next, in step 608, step 603
Similarly to the above, if the update cycle ID 503 of the update event matches the update cycle 224 of the update object for each update object in the screen data, the object is updated. When the process is completed for all the matching objects, the process returns to step 604.

When the update processing is completed for all the update objects in the screen data in step 604, the processing of the update event is ended in step 609.

The algorithm will be described with reference to FIG. 12 when the operation shown in FIG. 10 is performed. The timer means 116 has two types of update events at a period of 500 ms: a normal update event 500a in FIG. 14A and a priority update event 50 in FIG.
0b. The screen update unit 112 acquires the priority update event 500b, and firstly, the objects 311 and 31
2 is performed in step 603 of the above algorithm.

Next, the normal update event 500a is acquired, and the object 313 is updated in step 605 of the above algorithm. Thereafter, in step 606, the priority update event 500b is acquired again and the object 31 is updated.
Steps 608 are performed for updating 1,312.

Thereafter, in step 605, the update of the object 314 and the like that has not been updated in response to the normal update event 500a is performed.

By such an updating process, the updating of the object by the priority update event can be performed with priority.

The description of the functions and system components of this embodiment has been completed. As explained above,
According to the present embodiment, even in a situation where there are a large number of update objects and if the update is performed uniformly, the display update interval of each update object is extended, the data of the portion designated by the operator is given priority. By updating the data, the operator can follow the variation of the data in detail.

Further, in the above example, the transmission of the update event performed by the timer means 116 is specified in the cycle registered in the timer management table 5200 for both the normal update event and the priority update event. It is also possible to adjust the event transmission cycle so that the object indicated by priority is updated more preferentially.

That is, 50 is added to the timer management table 5200.
When an update cycle of 0 * is registered, an event is generated in a cycle of 500-α (α is a positive number). For example, if α = 100, the object update order is 311 and 31 according to the priority instruction in FIG.
2, 311 and 312, the object to be preferentially updated can be updated more frequently.

In this embodiment, as a method of selecting an object to be preferentially updated by the operator, for example, there is a method of designating control data to be preferentially updated by the operator. This will be described below.

As shown in FIG. 18, on screen 620, objects 6201 and 6202 indicating boiler fuel system data and objects 6203 and 6204 indicating boiler cooling system data are arranged.

When the operator preferentially updates the information on the boiler fuel system, the operator uses the cursor 320 to select the item from the menu 6201. At this time, priority update instruction information as shown in FIG. The priority update instruction information processing means 111 performs the processing described in the algorithm 1 of FIG. 15 and, as shown in FIG.
1, a priority update mark * is added to the runtime update cycle 224 of 6202.

The timer means 116 has two types of events (objects 6203 and 6204 shown in FIG. 14).
14 (a) and the objects 6201 and 6202 (FIG. 14 (b)) are sent to the screen updating means 112. Since the screen updating unit 112 preferentially processes the event shown in FIG.
1 and 6202 are updated with priority.

When an object is specified by such an operation, an object indicating a specific type of control data can be specified all at once without omission. In addition, even when those objects are distant from each other in position, the instruction can be given with a single shot.

Next, a second embodiment will be described. FIG. 1 shows a screen updating terminal device and a screen updating system configuration according to a second embodiment. In this system, the screen updating terminal device 101 of the first embodiment
And an update interval initial adjusting unit 711 is added to the configuration.

Before describing the function of the update interval initial adjusting means 711, the function of this embodiment will be described in more detail with reference to a specific screen operation example shown in FIG.

FIG. 2 shows the screen 2 displayed on the CRT 103. In the present embodiment, the screen 2 is displayed on the CRT 103.
When new is displayed, adjustments are made to increase the update interval of frequently updated objects. Here, an adjustment is made such that a value obtained by increasing the interval for an object whose original update cycle is 1000 ms or less is registered in the runtime update cycle.

FIG. 3 shows the original update cycle and the runtime update cycle of each update object in the screen 2. For example,
The original update cycle of object 901 is 500 ms
However, the runtime update cycle is 2000 ms.
By making such settings for all frequently updated objects, it is possible to reduce the terminal load and the network load.

On the other hand, with respect to an object which is not frequently updated and gives a small load to a terminal, the update cycle at the time of execution is set to be the same as the value of the original execution cycle so that the control data can be completely observed.

When the priority area 950 is selected in the priority frame by the cursor 320 on this screen, the execution update cycle of the object is reset as shown in FIG. Priority area 9
For the objects included in 50, the value of the original update cycle is reflected in the runtime update cycle, and a priority update mark * is attached. For example, the execution update cycle of the object 901 is 2000 ms in FIG.
With the instruction of 0, the time will be 500 ms. As a result, the objects in the designated area are updated frequently reflecting the value of the original update cycle.

With the function of this embodiment,
By adjusting the update cycle of the update object to be longer at the time of new screen display, the terminal load can be reduced, and only the part that the operator wants to see in detail can be adjusted by increasing the update object cycle. Be able to see in detail.

In order to realize this function, first, the function of each component of the screen updating terminal device 701 when a new screen is displayed will be described.

(1) The screen data management means 113 reads and holds screen data from a disk or the like. At this time, the value of the original update cycle 223 is copied to the update cycle 224 of each update object in the screen data at the time of execution.

(2) The update interval initial adjusting means 711 resets the update update period 224 of the update object in the screen data according to the algorithm described later. As a result, each object has the runtime update cycle shown in FIG.

(3) The screen updating means 112 displays the screen data on the CRT 103.

(4) The timer means 116 initializes the update cycle, whereby an update event is periodically sent to the screen update means 112.

The updating interval initial adjusting means 711 has an updating interval initial adjusting table 1201 as shown in FIG.
In this table, the attribute name 1211 and its value 1212
Are registered as a pair, and an adjustment method 1213 that describes an adjustment method of the runtime update cycle is registered as a pair.

For example, the update interval initial adjustment table 120
In the first row of 1, an originalUpdateRate indicating the original update cycle is entered in the attribute name 1211 of the condition part.
Also, “<= 800” is included in the value 1212 of the condition part of the same row, so that the runtime update interval is adjusted only when the value of the original update interval 223 is 800 or less. Object.

In the column of the adjustment method 1213 in the same line, “= 2000” is entered, which indicates that the update interval 224 at the time of execution of the update object is set to 2000 ms. In FIG. 3, the object 90
The original update intervals of 1,902,911,912 are:
Since the conditions described in the first row of this table are satisfied, the execution update cycle of those objects is 2000 ms as described in the adjustment method in the same row.

The processing at the time of new screen display performed by the update interval initial adjusting means 711 using the update interval initial adjustment table 1201 will be described with reference to the algorithm of FIG.

FIG. 6 shows an update interval initial adjustment algorithm (algorithm 3).

First, in step 1301, the update interval initial adjusting means 711 acquires the screen data instructed to be newly displayed from the screen data managing means 113.

Next, in step 1302, steps 1303 and 13 are executed for each update object in the screen data.
04.

In step 1303, it is determined whether or not the attribute of the update object satisfies the condition of the attribute defined in the condition part of the update interval initial adjustment table 1201. If so, control returns to step 1304; otherwise, control returns to step 1302.

In step 1304, the corresponding adjustment method is executed to calculate a value, and the calculated value is set in the runtime update cycle 224. In step 1305, the process is terminated.

The description on the adjustment processing of the update cycle attribute of the object at the time of the new display, which is performed at the time of the new display, is now completed.

Next, the operation of each component of the screen updating apparatus 701 when a priority area is specified by the operator will be described. When the priority area is specified, the priority update instruction information processing means 111 performs the processing shown in FIG.

FIG. 7 shows a priority update object selection and a runtime update cycle setting algorithm (algorithm 4).

First, in step 1401, the priority update instruction information processing means 111 acquires priority update instruction information, for example, the information shown in FIG.

Next, in step 1402, the screen data (FIG. 9) indicated by the screen ID 5101 of the priority update instruction information is obtained.

Next, at step 1403, screen data 2
01 for each update object in
4, 1405 and 1406 are performed. When the processing has been completed for all the updated objects, the process proceeds to step 1407.

In step 1404, it is determined whether or not the update object is an instruction target using the instruction type 5102 and the instruction data 5103 of the priority update instruction information. Specifically, the update object is included in the area by comparing the position attribute 211 and the size attribute 222 of the update object with the area information (x, y, width, height) in the instruction data 5103 of the priority update instruction information. Find out if you can. If it is included, the process proceeds to step 1405; otherwise, the process returns to step 1403.

At step 1405, the value of the original update cycle 223 of the update object is updated to the runtime update cycle 224.
Copy to

In step 1406, a priority update mark * is added to the update cycle 224 of the update object at the time of execution. When the attachment is completed, the process returns to step 1403.

At step 1407, the update of the update cycle is instructed to the timer means 116, and the process is terminated at step 1408.

By performing this processing, the update objects (901, 911, 92) included in the designated priority area are set.
1, 931) are all the values of the original update period 223, and are marked with the priority update mark *.

Further, in the timer management table 5200 of the timer means 116, the update cycle at the time of execution of each update object of the screen 2 is registered again. The timer means 116 sends an update event to the screen updating means 112 at the registered time interval.

Note that the update event receiving process performed by the screen updating unit 112 is the same as the algorithm described with reference to FIG.

The operations shown in FIGS. 2, 3 and 4 are realized by the respective means described above.

In the present embodiment, as in the first embodiment, for example, the operator specifies control data to be preferentially updated, as in the first embodiment. It is also possible to use such as.

In this embodiment, the update interval initial adjustment table 1 of the update interval initial adjustment means 711 is used.
Settings that reduce the frequency of data collection from a specific DB can also be registered in 201. For example, the update interval initial adjustment table 1201 shown in FIG.
As “11”, “dbAddr.site” is the value 1212 of the condition part.
"= Site B" is used as the adjustment method 1213.
* 2.0 "is set for each.

This indicates that for an update object linked to data in a remote plant DB (plant DB at site B), the runtime update cycle 224 is made twice as long as the original update cycle 223. Thus, the remote D
By reducing the update frequency of an object that requires a long time for data transfer such as the data reference of B, the frequency of the update that requires a long time for data collection can be reduced.

As described above, according to the present embodiment, (1) the load on the terminal and the network can be suppressed by adjusting the update cycle of the update object to be longer when the screen is displayed. In particular, as described in the present embodiment, the update interval is narrowed down to objects having a short update cycle or objects that require a long time to be updated due to data referencing of a remote DB via a network having a low transmission capacity. By expanding, it is possible to reduce the frequency of waiting for the processing of an operator operation or an alarm, which occurs when the object is updated. For this reason, a man-machine with good responsiveness can be realized.

(2) Frequently updating an object in an area designated by the operator, the variation of data indicated by the object can be tracked in more detail.

Next, a third embodiment will be described. This is an application of the second embodiment. FIG.
9 shows a screen updating terminal device and a screen updating system configuration according to a third embodiment. In this system, the screen update terminal device 801 has a summary screen update display means 1511 and a detailed screen update display means 1512, and this part replaces the screen update means 112 in the screen update terminal device 701 of the second embodiment. Things.

The functions of the present embodiment will be described with reference to FIGS. The summary screen update display means 1511
As shown in FIG. 21, an overview screen 1601 showing the status of the entire plant is reduced and displayed on the CRT 103. Overview screen 1
In 601, updated objects corresponding to all control data on the plant DB 102 are arranged, so that the number of objects is on the order of thousands.

In order to reduce the update load on the overview screen 1601, when newly displaying the overview screen, the update interval initial adjusting means 711 uses the algorithm 3 of the second embodiment to set the runtime update cycle. Do. For example, the runtime update cycle of the pump rotation number 1621 and the pump frequency 1622 on the summary screen is set to 5000 ms as shown in FIG.

Next, when the operator designates a part to be viewed in detail using the cursor 320, the part is enlarged and displayed as a detail screen 1602 by the detail screen update display means 1512. The pump rotation speed 162 on this detailed screen
The run-time update cycle of 1 and pump frequency 1622 is shown in FIG.
As shown in FIG. 2, it is set to the same value as the original update period.

The detail screen is dynamically created by the priority update instruction information processing means 111 executing the algorithm shown in FIG.

FIG. 23 shows a detailed screen creation algorithm (algorithm 5). First, in step 1701,
The priority update instruction information processing means 111 acquires the area information according to the instruction of the operator shown in FIG.

Next, in step 1702, the screen data (FIG. 9) indicated by the screen ID 5101 of the priority update instruction information is obtained. Here, the screen data being displayed by the summary screen update display unit 1511 is acquired.

Next, in step 1703, for each update object in the screen data,
Steps 705, 1706, and 1707 are performed. When the processing is completed for all the updated objects, step 1708
Move to

At step 1704, it is determined whether or not the update object is in the area designated by the operator. If it is included in the area, move to step 1705,
If not included, the process returns to step 1703.

In step 1705, the object is copied to the screen data for the detailed screen. Hereinafter, in steps 1706 and 1707, processing is performed on the object created by copying.

At step 1706, the value of the original update cycle 223 of the update object is changed to the runtime update cycle 224.
Copy to

At step 1707, a priority update mark * is attached to the update cycle 224 of the update object at the time of execution. When the attachment is completed, the process returns to step 1703.

Next, at step 1708, the timer means 1
16 is instructed to initialize the update cycle of the screen data for the detail screen.

At step 1709, the detailed screen update display means 1512 is instructed to display the screen data for the detailed screen. At this time, the display magnification is set to the same magnification, the screen cutout position and the screen size are set so that the object in the screen data is displayed on the detail screen, and the processing is ended in step 1710.

By executing this algorithm, all the update objects included in the designated priority area are copied to the detail screen screen data. In those copies, the runtime update cycle 224 is all the original update cycle 223.
And a priority update mark * is attached.

Further, the update cycle of the update object of the detail screen is registered in the timer management table 5200 of the timer means 116, and the update event is sent to the screen update means 112 at the registered time interval.

With the above description, the operation described with reference to FIGS. 21 and 22 becomes possible.

The functions provided by the present embodiment can realize a man-machine capable of checking the status of the entire system on the overview screen and immediately following the information on the detail screen as soon as something is found there. .

Further, it is possible to define a screen for confirming the status of the entire system and a screen for monitoring and operating an individual control object as the same screen, and it is possible to save the trouble of double definition of the screen.

Next, a fourth embodiment will be described. This is an application of the second embodiment. FIG.
9 shows a screen updating terminal device and a screen updating system configuration according to a fourth embodiment. In this system, a plant DB 102, a screen data recording server 1803 that collectively manages screen data, and two screen updating terminal devices 1801 and 1802 having different performances are connected by a network.

The structure of each screen updating terminal device is the same as the structure shown in the second embodiment. The screen data management unit 113 downloads the screen data from the screen data recording server 1803 when receiving the new screen display instruction, and holds the screen data.

After that, as described in the second embodiment, the update interval initial adjusting means 711 sets the runtime update cycle 224 based on the original update cycle 223 of each update object.

In this system, the update interval initial adjustment means 711 has an update interval initial adjustment table corresponding to the performance of the terminal for each terminal. For example, the low-performance screen update terminal device 18
01 has an update interval initial adjustment table 1811 for low-performance devices in its own update interval initial adjustment means 711;
On the other hand, the high-performance screen update terminal device 1802 has an update interval initial adjustment table 1812 for high-performance devices in its own update interval initial adjustment means.

For example, the update interval initial adjustment table 1811 for the low-performance device includes, for example, “the original update cycle is 100
Those that are 0 ms or less are instructed to set the runtime update cycle to 2000 ms, while the update interval initial adjustment table 1812 for high-performance devices does not have such an instruction.

In each terminal, the runtime update cycle of the object is determined based on the update interval initial adjustment table 1811 for the low performance device and the update interval initial adjustment table 1812 for the high performance device. It will be adjusted every time.

Even if the same screen is downloaded from the update group DBS 1803, the high-performance machine can update the screen at the update interval defined for the screen, while the low-performance machine can reduce the screen update frequency. As a result, the terminal load of a low-performance machine can be reduced.

According to the present embodiment, a screen developer can use a screen created by one screen definition on a terminal having a plurality of performances without increasing a terminal load or a network load.

[0157]

According to the present invention, the information desired by the operator can be updated with priority and in detail on the screen, so that the information can be more appropriately adjusted according to the operating state of the system, the operating state of the plant, and the load state of the computer. Control and monitoring can be performed.

Furthermore, since the screen can be updated while suppressing the load on the terminal and the network, the responsiveness of various operations performed by the operator can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a screen updating terminal device and a screen updating system according to a second embodiment.

FIG. 2 is a diagram showing a screen of an operation example according to the second embodiment.

FIG. 3 is a diagram illustrating an update cycle when a priority area of the target object in FIG. 2 is not selected.

FIG. 4 is a diagram showing an update cycle when a priority area of the target object in FIG. 2 is selected.

FIG. 5 is a configuration diagram of an update interval initial adjustment table of an update interval initial adjustment unit of FIG. 1;

FIG. 6 is a diagram illustrating an update interval initial adjustment algorithm performed by an update interval initial adjustment unit in FIG. 1;

FIG. 7 is a diagram illustrating an algorithm for selecting an object to be updated with priority;

FIG. 8 is a configuration diagram of a screen updating terminal device and a screen updating system according to the first embodiment of the present invention.

FIG. 9 is a configuration diagram of screen data used in the present invention.

FIG. 10 is a diagram showing a screen of an operation example according to the first embodiment.

11 is a diagram illustrating a normal update order of the update object in FIG. 10;

FIG. 12 is a diagram illustrating an update order when a priority area of the update object in FIG. 10 is selected.

FIG. 13 is a configuration diagram of a timer management table included in the timer unit of FIG. 8;

FIG. 14 is a configuration diagram of an update event sent from a timer unit at the time of update.

FIG. 15 is a diagram showing a priority update object selection algorithm.

FIG. 16 is a configuration diagram of priority update instruction information.

FIG. 17 is a diagram illustrating an update event processing algorithm performed by a screen updating unit.

FIG. 18 is a diagram showing a screen of another operation example according to the first embodiment.

19 is a diagram illustrating an update cycle at the time of selecting a DB attribute of the target object in FIG. 11;

FIG. 20 is a configuration diagram of a screen updating terminal device and a screen updating system according to a third embodiment.

FIG. 21 is a diagram illustrating a screen of an operation example according to the third embodiment.

FIG. 22 is a diagram showing a runtime update cycle of the target object of FIG. 21.

FIG. 23 is a diagram illustrating an algorithm of a detailed screen creation process performed by the priority update instruction information processing means of FIG. 20;

FIG. 24 is a configuration diagram of a screen updating terminal device and a screen updating system according to a fourth embodiment.

[Explanation of symbols]

101, 701, 801 ... screen updating terminal device, 102 ...
Plant DB, 1803 ... Screen data recording server, 11
DESCRIPTION OF SYMBOLS 1 ... Priority update instruction information processing means, 112 ... Screen update means, 113 ... Screen data management means, 115 ... Input processing means, 116 ... Timer means, 711 ... Update interval initial adjustment means, 1511 ... Outline screen update display means, 1512 ... Detailed screen update display means, 211 ... Update object, 223
… The original update cycle attribute of the update object, 224
... Runtime update cycle attribute of update object, 225 DB address attribute of update object

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Harumi Uchigasaki 7-1-1, Omika-cho, Hitachi City, Ibaraki Prefecture Within Hitachi Research Laboratory, Hitachi, Ltd. (72) Inventor Masayuki Tani 7-1-1, Omika-cho, Hitachi City, Ibaraki Prefecture No. 1 Inside Hitachi, Ltd. Hitachi Research Laboratory (72) Inventor Hiroshi Kobayashi 5-2-1 Omika-cho, Hitachi City, Ibaraki Prefecture Inside Hitachi Ltd. Omika Plant

Claims (6)

[Claims] 1. A screen updating method for periodically collecting a plurality of data and updating a plurality of objects corresponding to the respective data on a screen based on the collected data, the method comprising: The specific update period of the object is adjusted to a runtime update period having a longer update period than the specific update period, and based on the input priority update instruction information,
Determining an update priority object from among the plurality of objects, resetting the adjusted runtime update cycle of the determined update priority object to the unique update cycle, and A screen updating method comprising: updating an update priority object; and updating an object other than the update priority object at the runtime update cycle. 2. The method according to claim 1, wherein a plurality of objects are reduced and displayed as an outline screen, and each of the reduced objects is updated at the runtime update cycle.
The priority update area specified on the summary screen is enlarged and displayed as a detail screen, and the update priority object in the enlarged and displayed detail screen is updated at the reset unique update cycle. Screen update method. 3. Screen data management means for managing screen data, screen update means for updating a screen based on screen data managed by the screen data management means, and an update object updated and displayed at an update cycle A screen section, priority area setting means for setting a priority area on the screen with a priority frame by designating some of the update objects, and priority update object determination for determining whether or not the update object falls within the priority area Means for updating the update object in the priority area based on priority update instruction information having priority over the update cycle for the priority update object determined to be the priority update object by the priority update object determination means A screen updating terminal device comprising: an object screen unit. 4. A screen updating terminal device for periodically collecting a plurality of data and updating a plurality of objects corresponding to the respective data on a screen based on the collected data, wherein a unique update of each of the objects is provided. Screen data management means for storing a cycle in advance, update interval initial adjustment means for adjusting the unique update cycle to a runtime update cycle having a longer update cycle than the unique update cycle, and input means for inputting priority update instruction information, Based on the input priority update instruction information, determine an update priority object from among the plurality of objects, and determine the runtime update cycle adjusted by the update interval initial adjustment unit of the determined update priority object. Priority update instruction information processing means for resetting to a specific update cycle,
A screen updating unit that updates the update priority object with the reset unique update cycle and updates objects other than the update priority object with the runtime update cycle. 5. The screen updating means according to claim 4, wherein:
A summary screen update display means for reducing a plurality of objects as an overview screen and updating each of the reduced displayed objects at the runtime update cycle; and a priority update area designated on the overview screen as a detail screen A screen updating terminal device that enlarges and displays the updated priority object in the enlarged and displayed detailed screen at the reset unique update cycle. 6. A computer-readable recording medium on which a processing program for periodically collecting a plurality of data and updating a plurality of objects corresponding to the respective data on a screen based on the collected data is recorded. And
The processing program adjusts a unique update cycle of each object stored in advance to a runtime update cycle having an update cycle longer than the unique update cycle, and based on the input priority update instruction information, The update priority object is determined from the objects, the adjusted runtime update cycle of the determined update priority object is reset to the specific update cycle, and the update priority object is set at the reset specific update cycle. While updating objects other than the update priority object,
A computer-readable recording medium recording a screen update processing program, wherein the program is updated at the runtime update cycle.