JPH03256196A - Plant status display device - Google Patents

Abstract

PURPOSE:To reduce operator's load for information processing by offering the position of abnormality to a function hierarchical model when an event having plural complicated abnormality like a multiple failure is generated. CONSTITUTION:The plant status of a plant 1 is collected and processed by a process data processing part 2 and the processed result is inputted to a plant status evaluating part 3 to execute the monitoring of abnormality in process data, the monitoring of an apparatus operation status and the analysis of alarm generating status. When the evaluating part 3 identifies abnormality, a display contents selecting part 4 estimates remarked information and selects the contents of display and an information editing part 5 edits a drawing and displays the edited result on an I/O device 6. The I/O device 6 receives a driver's request and transmits the information to the selecting part 4. Individual elements stored as a batch are offered to plant status hierarchical knowledge 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a process monitoring device having a display device, and particularly to a plant status display device that can centrally present the plant status.

[Conventional technology]

Conventional Plan 1 - As an example of how to display a computer control system related to operation, for example, the 19th "Reactor Physics Summer Seminar""Intelligent Man-Machine System Using an Operator Model"
It is discussed in This system uses a functional hierarchy model in which plant functions are organized hierarchically as a model for understanding the image of the entire plant.

[Problem to be solved by the invention]

The above-mentioned conventional technology is a new attempt at a technology for collectively displaying plant status. However, it does not show the entire functional hierarchy model, nor does it clearly show related information such as diagnosis and prediction. For this reason, it is not possible to comprehensively judge the plant status or to clearly understand the position of the displayed related information with respect to the plant status. In other words, the necessary transparency (clear understanding of plant status) required as an interface technology cannot be said to be sufficient.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus that can comprehensively judge the plant status and clearly display the position of displayed related information in the plant status.

[Means to solve the problem]

In order to achieve the above purpose, the location of related information is stored in association with knowledge of functional hierarchies, the related information in the hierarchy is determined as the hierarchy to be watched according to the plant status, and the two are displayed in association. This method was adopted.

[Effect]

The state of the plant is organized hierarchically based on the plant's functional configuration, system configuration, and cause-and-effect relationship of events. The upper levels are those that have a significant impact on plant operation, and the lower levels are those that concern individual equipment. It can be seen as an arrangement of the ripple effects of an event where an abnormality at a lower level spreads and causes an abnormality at an upper level, or it can be seen as a breakdown of functions from goals at an upper level to concrete steps at a lower level. . By emphasizing and showing the location of an abnormality in the overall hierarchy when it occurs, the position of the event in the entire plant can be understood. Furthermore, by displaying a menu of related information at the highlighted location, the operator can immediately obtain the necessary information.

Furthermore, by presenting information in association with the menu, the positioning of the presented information relative to Plan 1 to Status becomes clear.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail using the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. The plant status of the plant 1 is collected and processed by the process data processing unit 2 and input to the plant status evaluation unit 3. Here, monitoring of abnormalities in process data 9 Monitoring of equipment operating status.

Analyze the situation in which warnings occur. When an abnormality is identified by the plant condition evaluation unit 3, the display content selection unit 4 estimates the information that the operator should pay attention to and the information that the operator is actually paying attention to according to the abnormality situation, and selects the display content. . The information editing section 5 edits the screen according to the display content and displays it on the input/output device 6. The input/output device 6 accepts requests from the operator and transmits the information to the display content selection section 4. The plant state hierarchical knowledge 7 is composed of individual elements that collectively store hierarchical relationships, related information, etc.

FIG. 2 shows part of the hierarchical knowledge stored in the plant state hierarchical knowledge 7. This figure also shows a display method. The top layer focuses on the function of heat transfer, and the bottom layer contains the specific equipment.

The heat transfer in the top layer corresponds to the realization function for the operational goal as shown in Figure 3, and the model will be created at this level. Here, items such as heat transfer and core flow rate control are called nodes. The functional hierarchy model is a model in which the locations of knowledge, processing procedures, information, etc. shown below are organized and stored in individual nodes.

(1) Hierarchical relationship between nodes (AKO, stored in function) (2
) Names of nodes that physically affect each other (stored in Impact) (3) Alarm names related to node functions and equipment (stored in Alarm) (4) Status of whether or not node functions have been lost (Status) (5) Conditions necessary to achieve the node function, necessary item 9 selection criteria (Function ↓ stored) (6) Evaluation result of the information that the operator is watching (stored at the point of focus) ( 7) Location of the system diagram for the range corresponding to the node (stored in the system diagram) (8) Location of the routine that creates trends for parameters that are strongly related to the node - parameters can be selected and changes can be accepted at operator request ( (9) Location of equipment operating conditions and operating procedures (stored in guidance) The above knowledge can be easily added or modified if it is expressed in a frame format for each node. , the knowledge base can be expanded as needed.

The required information can be extracted by evaluating the frame, ie by searching by following labeled directed arcs.

The focus of attention is a collection of nodes corresponding to the functions and system 9 equipment that the operator should be aware of, judging from the plant state. By emphasizing and presenting in detail the nodes that should be watched in the overall configuration, it is possible to direct the operator's consciousness in an appropriate direction. It is important for these pieces of information to be organically combined as shown in Figure 2 in order to perform cognitive processing correctly and quickly.

As shown in FIG. 4, the operator's cognitive process changes depending on the plant status. By presenting the knowledge in (1) to (9) in an appropriate form according to the details of the operator's cognitive processing, it is possible to provide information in a form that matches the cognitive process, and improve the information processing activities of the operator. can support. For example, if you want to check the status of each node, you can check whether there is an alarm or loss of function in (3) or (4), or present a trend diagram of related parameters in (8) as necessary. Further, in the case of determining the operating procedure, the guidance information (9) is presented. In the case of diagnostic processing, the information in (1) is used to present information regarding lower nodes, or the information in (2) is used to present information regarding upstream nodes. In the case of prediction processing, on the other hand, information regarding upper or downstream nodes is presented. In this manner, the display content selection unit 4 selects and collects presentation information while referring to knowledge of the functional hierarchy model.

Part 1: How to set specific hierarchies in the functional hierarchy model
This will be explained using a table.

11 2 As shown in Table 1, it is thought that there are about five levels. This figure also shows the correlation with the operator's cognitive process in parentheses, but as explained earlier, the lower part is shown for diagnosis and specific procedures, and the upper part is shown for goal evaluation and interpretation (prediction). , there is a high affinity between the functional hierarchy model and the cognitive processes of operators. You can also use configuration instead of function,
Examples are shown in Table 2.

There is also a high correlation between the system structure hierarchy and the functional hierarchy, and in reality, a functional hierarchy model is constructed by combining the two. A specific example is shown in FIG. This is an example organized around maintaining the output operating state.

In the plant condition evaluation unit 3, using the hierarchical knowledge 7,
How to evaluate the condition that the operator should pay attention to will be explained using the processing diagram shown in FIG. 6.

Although an example of an alarm will be described here, the same applies to the case of an abnormality in process amount or a failure of equipment that does not result in an alarm. However, in this case, a device and software for detecting abnormalities and the like are required.

First, the alarm that is occurring is recognized (3a). Alarm A,
Assuming that N N -1 to ANN-n have occurred, for each alarm, a search is made on the functional hierarchy model to which note the alarm corresponds (3b).

Furthermore, the hierarchical relationship between the searched nodes is analyzed, and the nodes located at the higher level in terms of the hierarchical composition are set as the variable Node-t.
Set to OP (3G). Node-top is a variable given to the node hierarchically located at the highest level among a group of nodes included in one focus of attention. If multiple abnormalities occur, Nodetop
Multiple nodes are configured. Therefore, the hierarchical relationship between Node-i to which alarm ANN-i is related and the node given to Node-top is analyzed, and the value of Nodetop is sequentially updated. Finally, the hierarchical relationship of notes included in Node-top is evaluated and the focus of attention is analyzed (3d).

An example of 15 nodes a-o shown in FIG. 7 will be explained.

Case 1 is a case where an alarm related to No.I~d+g+hln occurs, and nodes below d and below node g are recognized as separate focuses of attention.

As Node-top, d and g, which are the topmost nodes of the focus of each attention, are set. Case 2 is a case where an alarm related to nodes d, e, h, k occurs, and immediately before step 3d in FIG.
Two nodes d and e are set as nodes. However, in this case, the effects of the abnormality that occurred in the lower layer will spread to nodes d and e, and if it continues as it is, there is a possibility that the function of node b will be lost, so it is necessary to make efforts to maintain the function of node b. be.

16- In other words, in this case, it is more appropriate to consider node b as one focus of attention. The process of step 3d in FIG. 6 is to analyze the hierarchical positional relationship between nodes set in such Node-top and determine the focus of attention.

Next, the flow of processing performed in the display content selection section 4 will be explained using FIG. 8. First, the Node-top set by the plant state evaluation unit 3 is recognized (4a).

Next, the hierarchical structure with Node-top as the apex is recognized (4b). An instruction to display only the recognized structure or to highlight the recognized structure in the overall configuration is created (4c). When displaying this configuration diagram, it is necessary to be able to arbitrarily set the range of nodes to be displayed. next,
An instruction to display a related explanatory information display selection menu such as a system diagram and a trend diagram related to the Node-top, and predetermined related explanatory information are extracted (4d). Here, these pieces of information are sent to the information editing section 5 and displayed on the input/output device 6. Furthermore, if there is input from the user, the content is determined and instructions for display content are determined (4e)
.

In the explanation so far, we have used a display method in which the related information display menu is embedded in the functional hierarchy model, as shown in Figure 2, but it is also possible to display the menu separately as shown in Figure 9. be. In this case, the menu is No.
Naturally, it is related to e-top. ■Display a functional hierarchy diagram that indicates the focus of attention. Part 0 allows the display range of the hierarchical diagram to be freely selected. 0
The section is a screen selection menu. The related information selected or preset in the 0th part is displayed in the 0th part. A pointing device such as a mouse is optimal for these inputs.

〔Effect of the invention〕

According to the present invention, even when an event involving complex abnormalities occurs in a plant, such as in the case of multiple failures, the position of the abnormality in the overall situation of the plant is clearly presented on the functional hierarchy model. can be grasped. It also ensures that the relevant information displayed is in line with the operator's focus of attention;
Moreover, since they are displayed in association with each other, their meanings can be clearly understood.

This reduces the burden of information processing on the operator and increases the effectiveness of driving support.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a block diagram showing an example of the structure, expression, and display of hierarchical knowledge, and FIG.
Figure 4 is an explanatory diagram of the hierarchical structure, Figure 4 is an explanatory diagram showing how to support the cognitive process of operators, Figure 5 is a systematic diagram of functional hierarchical knowledge,
FIG. 6 is a processing flowchart of the plant condition evaluation section;
FIG. 7 is an explanatory diagram showing a focus of attention evaluation method, FIG. 8 is a processing flowchart of the display content selection section, and FIG. 9 is a front view of a display screen according to another embodiment. 3... Plant condition evaluation section, 4... Display content selection section,
5... Information editing department, 6... Input/output device, 7... Plant 19- Fig. 7 [1] Case 1 (2nd place 2 ○: Node ○: Where the inspector lives?) - : Note! 1. Hiroshi

Claims (1)

[Scope of Claims] 1. Knowledge that organizes plant conditions hierarchically and knowledge that stores the location of related information according to each layer of the knowledge, A plant status display device comprising: a hierarchy to be displayed accordingly; a means for determining the related information; a means for editing output information; and an input/output means. 2. Knowledge that organizes the plant state hierarchically and knowledge that stores the location of related information according to each layer of the knowledge, and according to the plant state, among the layers and the related information, set in advance A plant status display device comprising: selecting and displaying in detail only the hierarchies and related information set based on the plant status; accepting requests from operators on the display; and changing the display contents. 3. The plant status display device according to claim 1 or 2, wherein, depending on the plant status, only the hierarchy and related information set based on the plant status are selected and highlighted. 4. The plant status display device according to claim 1 or 2, wherein related information is displayed around the displayed hierarchical knowledge in association with the hierarchical knowledge. 5. The plant status display device according to claim 1 or 2, which selects the hierarchy and related information to be output according to the plant status and the cognitive course of the operator at that time. 6. Claim 1, 2, 3, 4 or 5, wherein the hierarchical knowledge regarding the plant status includes plant functions;
A plant status display device created based on the system configuration and cause-and-effect relationships of events. 7. In claim 1, 2, 3, 4 or 5, the related information displayed on the display device includes a plant system configuration diagram, a plant function configuration diagram, a parameter trend, a plant summary,
A plant status display device that displays guidance, diagnosis results, prediction results, or warnings, which can be selected by the user. 8. The plant status display device according to claim 1, 2 or 7, further comprising means for searching and displaying the lower or upstream side of the element that has lost its function in the hierarchical knowledge at the time of diagnosis. 9. The plant status display device according to claim 1, 2 or 7, which searches and displays the upper or downstream side of the element that has lost its function in the hierarchical knowledge at the time of prediction. 10. The plant status display device according to claim 1, 2 or 7, which retrieves and displays the operating procedure stored in the hierarchical knowledge when determining the corresponding procedure. 11. In claim 1 or 2, the hierarchical knowledge is a plant status display device configured by a set of nodes each having a single function or configuration as one element, each node being connected by a labeled directed arc. . 12. The plant status display device according to claim 1, 2, 8, 9, 10 or 11, which advances inference or extracts relevant information by searching for labeled directed arcs.