JPH01181197A - Plant monitoring and controlling equipment - Google Patents

Abstract

PURPOSE:To correctly select data on a CRT by instructing the corrected value of a viewpoint position on a touch sensitive screen, executing the coordinate correction of an input signal in accordance with the corrected value and executing plant monitoring. CONSTITUTION:A touch sensitive screen 13 is fitted on a CRT 11 and coordinate data 23 outputted by the touch sensitive screen 13 are supplied to a position signal generating device 24. The viewpoint position for the picture is inputted from a viewpoint instructing key 27 and a correcting signal is sent to the position signal generating device 24 from an origin correcting signal generating device 26 so as to become the coordinates corresponding to the viewpoint. Corrected coordinate data 29 are supplied to an operation monitoring signal generating device 31 and a plant 33 is controlled. The plant 33 is monitored by a plant monitoring system 35 and the condition is displayed on the CRT 11.

Description

DETAILED DESCRIPTION OF THE INVENTION In one industrial field of application, the present invention relates to a plant monitoring and control device equipped with a display for displaying plant status and various information for plant operation, and particularly relates to a plant monitoring and control device equipped with a display for displaying plant status and various information for plant operation. This invention relates to a plant monitoring and control device that uses a sensitive screen to input coordinates.

1. Prior Art As the use of computers progresses, display devices such as CRTs (cathode ray tubes) are increasingly used in various monitoring devices and control devices. Such a display device is usually used to display various data, but it can also be used as part of an input device by selecting the displayed data by some means.

For example, in the plant control room of a nuclear power plant, a predetermined CR
A transparent touch-sensitive screen (T
SS) is installed. Here, a touch-sensitive screen is a device that, when you touch it with two fingers or the like, the coordinates of the touched position are determined. When the data is displayed on the CRT, the operator can specify the position corresponding to the desired data on the touch-sensitive screen and specify the data.

This combination of touch-sensitive screens and CRTs is useful compared to, for example, conventional plant information display equipment that displays each /XI parameter individually. <You can now select and display only parameters. In addition, by displaying icons (pictograms) of operating tools on the screen and instructing them on a touch-sensitive screen, it is possible to have the same effect on plant equipment as if the operating tools were actually operated. Furthermore, if you use a touch-sensitive screen to instruct the screen to change,
It becomes possible to display a large amount of information effectively.

"Problems to be Solved by the Invention" As described above, when a touch-sensitive screen is used, it becomes possible for the operator to directly indicate his/her intention on a display such as a CRT. However, when trying to specify detailed data on the display, there were limits to the use of touch-sensitive screens. That is,
There has been a problem in that when one of the points that are not very far apart on the display is specified on the touch-sensitive screen, a point other than the desired point is erroneously specified.

The cause of this will be explained next.

FIG. 9 is for explaining this cause when a CRT is used as a display.

Now, assume that the operator wishes to specify a point 12 on the screen of the CRTII. Usually touch sensitive screen 1
3 is attached to the display frame of the CRT 11. Therefore, there is usually a gap of several centimeters between the touch-sensitive screen 13 and the display surface of the CRT II.

Under these circumstances, first, as an ideal situation, point 1 is set.
Consider the case where the operator's eyes 14 are at the same height as 2. In this state, the horizontal line of sight 15 with the eye 14 as one end
passes through point 12. If the operator touches the point 16 where the line of sight 15 intersects with the touch-sensitive screen 13, the coordinate position of the point 12 will be correctly input. Thus, for example, if the operator uses a stool of appropriate height and maintains his line of sight approximately horizontally, each vertical position on the -CRT II
3 (corresponds to each vertical position).

However, in a plant control room of a nuclear power plant, an operator does not always work while sitting on a stool. Particularly when some kind of abnormality occurs in a nuclear power plant, operators often perform emergency operations in a state where they unconsciously raise their V or become half-hearted.

The other eye 17 shown in FIG. 9 represents an example in which the position of the operator's head is elevated. In this example, the line of sight 18 connecting the point 12 and the eye 17 is tilted upward to the right. As a result, the point 19 where the line of sight 18 intersects the touch-sensitive screen 13 is shifted upwards from the point 16. That is, the operator determines that the shifted point 19 corresponds to the point 12j on the screen. If this point 19 is touched, point 12 may not be recognized, or it may be recognized that different data has been selected.

Above, we have explained the case where the eye position shifts to the top of the CRT, but a similar problem occurs when the eye position shifts to the bottom side, and the position where the touch sensitive screen 13 is actually touched and the position on the display screen are shifted. happens. Also, considering a case where an operator handles two CRTs, the horizontal direction of the operator relative to the screen will be The position of will be different. Therefore, in such a case, there will be a discrepancy between the touched position in the horizontal direction of the screen and the position of the display screen. The same applies when a left-handed person operates a device that was previously operated by a right-handed person. Such deviations vary depending on the resolution of the touch-sensitive screen 13 and the arrangement interval of data to be selected on the screen, but are also a problem with safety in the event of abnormalities in the plant.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a plant monitoring and control device that can correct specified position coordinates on a touch-sensitive screen depending on the situation where an operator is placed.

"Means for Solving the Problems" The present invention includes (1) a display, (11) a touch-sensitive screen attached to the display, and (ii) a touch-sensitive screen attached thereto;
i) a correction value instruction means for instructing one correction of the viewpoint position on the touch-sensitive screen; and (1) correction of the coordinates input from the touch-sensitive screen in accordance with the correction value instructed by the correction one-direction instruction means. The plant monitoring and control equipment j shall be equipped with coordinate correction means for performing the following. Here, the correction 1st shift instruction means is, for example, a sitting position or:
It may be a key for instructing each posture such as a standing position, or a sensor may detect the posture of the operator and instruct a correction value.

In this way, according to the present invention, the posture of the operator at any given time! Accordingly, we have decided to use the correction value instruction means to instruct the correction value for the viewpoint position, so that even if the touched position on the touch-sensitive screen is shifted, it will correspond to the display position on a display such as a CRT. You will be able to do this.

:Example J The present invention will be described in detail with reference to Examples below.

FIG. 1 is a schematic configuration diagram showing the main parts of the plant monitoring and control device in this embodiment. The plant monitoring and control device of this embodiment has a CR as a display as shown in this figure.
TII is used and a touch sensitive screen 13 is attached to it. The CRT II is configured to receive a screen signal 22 output from a display screen creation device 21 and display a desired image on the screen.

On the other hand, coordinate data 23 output from the touch sensitive screen 13 is supplied to a position signal generator 24j for generating a signal representing a position on the screen. The position signal generating device 24 is configured so that the origin correction signal 26 supplied from the origin correction signal generating device 25 is also supplied. The origin correction signal generator 25 is connected to the viewpoint instruction key 27 (51). Viewpoint instruction key 27: This key is located on the keyboard (not shown) and consists of four keys: a standing key 27T, a right key 27M, a left key 27H, and a center key 27C, as shown in FIG.

Standing key 27T: This is a key that is pressed when the operator assumes a standing position. The right key 27M is a key that is pressed when an operation is performed closer to the right side of the screen. The left key 27H is a key that is pressed when an operation is performed closer to the left side of the screen. The center key 27C is a key that is pressed when the user is in a sitting position directly in front of the screen.

Returning to FIG. 1, the explanation will continue. Position signal generator 24:
In response to the origin correction signal 26j, corrected coordinate data 29 with the origin corrected is output. The corrected coordinate data 29 is supplied to the operation monitoring signal generator 31. In the operation monitoring signal generation device 31, the corrected coordinate data 29! In this way, it is determined what kind of instruction the operator gave, and the control signal 3 is determined.
2 to perform necessary control of the plant 33.

The control status of the plant 33 is monitored by the plant monitoring system 35.
j is thus monitored, and the results are supplied as display data 36 to the display screen creation device 212. The operation monitoring signal generator 31 also outputs a display screen control signal 37. The display screen control signal 37 is supplied to the display screen creation device 21. As a result, the display screen creation device 21 causes the touch-sensitive screen 13 to perform operations such as inverting the selected data or switching the screen according to the instructed content.

Next, the relationship between the viewpoint instruction key 27 and the origin correction signal generating device 25 will be explained in more detail.

(Sitting and standing positions) Figure 3 shows the relationship between standing and sitting positions, and corresponds to the previous Figure 9j. In this Figure 3, position R represents the viewpoint in the sitting position, and position S represents the view in the standing position.

At this time, point ○: Well, this is the selected point located on the CRTII screen. , 2 points ○, line of sight 15 connecting R is touch sensor/
Let the cut that intersects with the Tig screen 13 be P, 2 points ○, S
Let Q be the point where the line of sight 17 connecting the lines intersects with the touch-sensitive screen 13. Further, the distance between the screen of the CRT l 1 and the touch sensitive screen 13 is assumed to be β.

In this case, when changing from a sitting position to a standing position, the points on the touch-sensitive screen 13 move by the distance between PQ. Therefore, in this case, if the origin on the CRT 11 is also moved upward by the same distance, the display position and the position to be designated by the operator will match. Generally, if the distance between two points A and B is represented by <AB>, then the vertical distance <PQv> can be given by the following equation (1).

Here, the distance <OR> is the distance between the screen of the CRT l1 and the operator according to ergonomic standards, and is based on the physical measurement of the length of the operator's shoulders and hands. When discussing the distance <R3>, it is necessary to clarify the concepts of sitting and standing positions. FIG. 4 shows the case where the operator is in a sitting position, and FIG. 5 shows the case where the operator is in a standing position. The height of the seat is hl, and the height from the buttocks to the eyes of operator 41 is h2.The length from the knees to the soles of the feet is approximately equal to the height of the seat, hl, so from the buttocks to the knees. Assuming that the length of is L, it can be seen that the difference between the eye height H in the standing position and the eye height hl+h2 in the sitting position corresponds to the length from the buttocks to the knees.

Therefore, by actually measuring the interval 2 and finding the distance <R3> and the distance (OR) for an actual operator or an average operator, the distance <PQv> to be corrected on the touch-sensitive screen 13 can be found. Therefore, when the operator presses the stand key 27T, the center key 27
When C is pressed, the coordinates are 1m i, and the distance <PQ>
This would be possible if a signal for correcting this was output as the origin correction signal 26.

In the plant monitoring and control device of this embodiment, in the initial state where the viewpoint instruction key 27 is not pressed, the center key 27 is pressed.
It is assumed that C was pressed and the origin is not corrected). When any one of the viewpoint instruction keys 27 is pressed, the origin correction data corresponding to that key is read out from a memory (not shown) and outputted as the origin correction signal 26.

(When positioned to the left or right) Next, correction of the coordinates and marks when the viewpoint moves to the right or left will be explained. When performing such correction, the operator presses the right key 27M or the left key 27H.

Now, FIG. 6 shows an example of a case where the operator's viewpoint moves from the center position to the right position. In this figure, dots ○ indicate selections on the screen of the CRTll. Point R represents the position of the eye when the operator is positioned in front of the CRT II, and point S represents the position of the eye when it is on the right side: shifted. 2 points 0. Line of sight connecting R 1
The point where 5 intersects with the touch sensitive screen 13 is P.
Let Q be the point where the line of sight 17 connecting the two points ○ and S intersects with the touch-sensitive screen 13. Also, CRTI
In this example, where the distance between the screen I and the touch-sensitive screen 13 is t, the coordinates of the touch-sensitive screen 13 are relative to <P with the operator's eyes moving 3j.
By moving Q> to the right, it becomes possible to specify point ○ accurately. The horizontal distance <PQH> on the touch-sensitive screen 13 is given by the following equation (2).

Here, the same value as the value discussed above regarding the relationship between the sitting position and the standing position is used for the distance OR>. In this state, distance < R3
> cannot be made too large. That is, the sixth
In the figure, if ZRO5 is the angle θ, this is too large.
Figure 7 is for explaining the reason for this.

In FIG. 7, it is assumed that the operator 4I moves his right arm from the center position to the right side. Then, as the angle θ becomes larger, the tip of the right arm moves further back from the screen, making it impossible to reach a predetermined value for the distance <OR>. Common sense suggests that θ≦30° is appropriate. temporary; go θ
=45°, <R3>=<OR>.

Therefore, in general, when a movement of the viewpoint occurs in the horizontal direction, the horizontal distance <PQ,> on the scanning screen is expressed by the following equation (3).

(3) Therefore, if the operator presses the right key 27L, the distance <
The signal for correcting PQl, l> is the origin correction signal 26
It would be fine if it were output as . When the operator's eyes tilt to the left, the origin correction signal 2
6 will be output.

(When changing the display angle of CRT) Above is CRT II and touch sensitive screen 13
A case has been explained in which each of these is arranged in a direction perpendicular to the horizontal direction. However, many recent displays are equipped with a tilt mechanism, allowing the operator to adjust the vertical tilt of the CRT II according to his or her wishes.

FIG. 8 is for explaining the state of origin correction of a plant monitoring and control device in a CRT equipped with a tilt mechanism. Generally, the screen of a CRT II or the like is installed lower than the operator's eye level, and the operator works more efficiently while looking down on the screen. In FIG. 8, the distance is θ from the horizontal line passing through the eye position R of the operator in a sitting position.

(Downward! = Selection point O of the CRT II is located. The position of the operator's eyes in the standing position is S, and the intersection of the lines of sight with the touch-sensitive screen 13 is P, respectively. , Q.

In this case, the coordinate change i<PQ on the touch-sensitive screen 13 in both sitting and standing positions (
t> is expressed by the following equation (4).

(4) Here, the distance ○L> is the distance between the operator and the CRTII screen. Further, the distance <R3> is the difference in height of the viewpoint between the sitting position and the standing position, and corresponds to the length of the human hip and knee. These values do not need to be set for each individual operator, and there will be no practical problem if the 95th percentile value for all operators is used.

The distance OR> can be expressed by the following equation 5).

<OR> = min ((@length x 90%).

Ku○L > /cos θ) ・・・・・・(5) As an example, let θ be about 18° and the distance Ku○L〉 be 30c.
Let it be m. The interval l is 10 mm, and the distance <R3> is 5Q.
cm, the coordinate change amount <PQT> is approximately IQmm. By correcting this coordinate change amount <PQ,>, errors in coordinate designation on the touch-sensitive screen 13 can be eliminated.

In the embodiment described above, the operator operates the viewpoint instruction key 27 when changing the position relative to the display such as a CRT, but the change in the operator's position is detected by a sensor and automatically corrected. The quantity may also be calculated.

- For example, a pressure sensor or an optical sensor is placed on a stool, and it is determined whether the Wf'F person is sitting on it. When it is determined that the person is sitting, a correction value for the sitting position is used, When it is determined that the user is not sitting, the correction value for the standing position may be used.

"Effects of the Invention" As described above, according to the present invention, there is provided a correction value instruction means for instructing correction of the viewpoint position on the touch-sensitive screen, and a correction value specified by the correction value instruction means. Since the plant monitoring and control equipment is equipped with a coordinate correction means that corrects the coordinates input through a touch-sensitive screen, data can be accurately sorted even if data is arranged in high density on a display such as a CRT. Can be done. Therefore, even with a small display, it is possible to display a sufficiently large number of options, and the data selection work becomes more efficient.

[Brief explanation of the drawing]

Figures 1 to 8 are for explaining one embodiment of the present invention, of which Figure 1 is a schematic configuration diagram showing the main parts of the plant monitoring and control device, and Figure 2 is the arrangement of viewpoint instruction keys. FIG. 3 is an explanatory diagram for explaining the relationship between the line of sight in a standing position and a sitting position. FIG. 4 is an explanatory diagram showing the case where the operator is in a sitting position. Figure 6 is an explanatory diagram showing the case where the operator is in a standing position. Figure 7 is an explanatory diagram for explaining the angle at which the operator moves the right arm from the center position to the right side, and Figure 8 is an explanatory diagram for explaining the origin correction of the plant monitoring and control device in a CRT equipped with a tilt mechanism. Explanatory diagram,
FIG. 9 is an explanatory diagram for explaining the cause of a conventional coordinate specification error when a CRT is used as a display. 11...CRT. 12... point, 13... touch sensitive screen, 15.
18... Line of sight, 25... Origin correction signal generator, S...
・Viewpoint in a standing position, R...Viewpoint in a sitting position, PXQ...Point where the line of sight intersects with the touch-sensitive screen, ! ······interval. Applicant: Japan Atomic Energy Corporation, Agent

Claims (1)

[Claims] 1. A display, a touch-sensitive screen disposed at a predetermined distance from the display surface, a correction value indicating means for indicating a correction value for a viewpoint position on the touch-sensitive screen, and a correction value indicating means for indicating a correction value for a viewpoint position on the touch-sensitive screen; A plant monitoring and control device comprising: coordinate correction means for correcting coordinates input from the touch-sensitive screen in accordance with correction values instructed by the value instruction means. 2. A plant monitoring and control device characterized in that the correction value indicating means is a key for selecting a correction value. 3. The correction value indicating means includes a sensor that determines whether a person is sitting on a stool used for operating the display;
It is characterized by comprising a correction value selection means that uses a correction value for a sitting position when the sensor determines that a person is sitting on the stool, and uses a correction value for a standing position when it is determined that a person is not sitting. Plant monitoring and control equipment.