JPH08147027A - Operation parameter monitor device - Google Patents

Abstract

PURPOSE: To provide the operation parameter monitor device which is shortened in the time required for designing and can display an easy-to-understand monitor result. CONSTITUTION: This device is provided with a general plant monitor rule defining means 5 which describes a general plant monitor rule 5t, an individual plant condition defining means 6 which describes individual plant conditions 6t indicating concrete numerals by plants, a monitor rule evaluating means 7 which converts the general plant monitor rule into concrete numerals based on the individual plant conditions, extracts operation parameters according to the general monitor rule, and evaluates the operation parameters, and a monitor result display means 8 which displays the evaluation result of the monitor rule evaluating means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring device for operating parameters of a plant, for example.

[0002]

2. Description of the Related Art Conventionally, in a plant such as a power plant or a chemical plant, operating parameters such as temperature and pressure in the plant are measured by a measuring instrument, and those operating parameters are monitored from the viewpoint of, for example, maintaining the safety of the plant. An operation parameter monitoring device has been introduced that is monitored by personnel and issues an alarm if the operating condition of the plant enters a safe operating range.In recent years, however, the measured operating parameters have been incorporated into a computer. The operating parameter monitoring device of a method of monitoring the operating parameter by a computer is becoming mainstream.

In the operating parameter monitoring device using this computer, for example, as shown in FIG. 18, a parameter monitoring rule table pt consisting of only numerical values is created for each plant, and the computer measures the operation using this parameter monitoring rule table pt and a measuring instrument. It has been compared and evaluated with the parameter periodically. As shown in the figure, the parameter monitoring rule table pt includes an operation parameter identification number indicating a computer number assigned to the operation parameter, a comparison operation identification number indicating a computer symbol of a comparison operation for the operation parameter, and an operation parameter. It has a comparison reference value that is a numerical value that is compared with. For example, in the monitoring rule shown in the first column in the figure, the operation parameter identification number "00
“1” is one of the operating parameters, “plant output”
The comparison calculation identification number “0” corresponds to “upper limit”, and the comparison reference value corresponds to “1000”. In other words, the monitoring rule shown in the first column is that when the measured plant output value exceeds the comparison reference value “1000”, a predetermined action such as issuing an alarm or displaying that on the monitoring screen is displayed. It shows that you do.

[0004]

However, since the parameter monitoring rule table included in this operation parameter monitoring device is described only by the numerical values corresponding to each plant, the meaning of the monitoring rule can be known from the parameter monitoring rule table. It's difficult. Therefore, when the plant is modified and it is necessary to change the parameter monitoring rules,
There was a problem that it was difficult to read the meaning from the numerical value of each parameter monitoring rule that needed to be changed, and it was difficult to judge the appropriateness of the modification. Further, when designing the operation parameter monitoring device for a new plant, it is necessary to create a new parameter monitoring rule table if the plant is different. In that case, the operation parameter identification numbers assigned to various operation parameters are also different from the conventional ones.
Moreover, since the actual numerical value that is the comparison reference value is different, the existing parameter monitoring rule table can hardly be used.
As a result, there is a problem that it takes time to design the operation parameter monitoring device.

On the other hand, in the conventional operation parameter monitoring device, it is difficult to understand the meaning of the monitoring because what is displayed on the monitoring screen during the actual monitoring of the plant is only the individual monitoring result. was there.

Therefore, an object of the present invention is to obtain an operating parameter monitoring device which can shorten the time required for designing and can display the monitoring result which is easy to understand.

[0007]

According to a first aspect of the present invention, there is provided an operating parameter monitoring device, which comprises measuring means for measuring operating parameters of a plant and storage means for inputting and storing the operating parameters measured by the measuring means. And a general plant monitoring rule definition means for describing the monitoring rule for monitoring the plant as a general plant monitoring rule, and an individual plant condition indicating a specific numerical value for each plant corresponding to the general plant monitoring rule. Individual plant condition definition means and general plant monitoring rules are converted into concrete numerical values based on individual plant conditions, operating parameters stored by the storage means are extracted according to the converted general plant monitoring rules, and the operating parameters are evaluated. Monitoring rule evaluation means and monitoring result display means for displaying the evaluation result of the monitoring rule evaluation means It is characterized in that it has a.

In the operating parameter monitoring apparatus according to claim 2 of the present invention, the general plant monitoring rule according to claim 1 is composed of a conceptual rule and a concrete rule having a hierarchical relationship with each other. It is what

The operating parameter monitoring apparatus according to claim 3 of the present invention is characterized in that the general plant monitoring rule according to claim 1 includes an item indicating the basis of the monitoring rule.

An operating parameter monitoring apparatus according to a fourth aspect of the present invention is characterized in that the general plant monitoring rule according to the first aspect includes an item indicating an operation caution range.

According to a fifth aspect of the present invention, the operating parameter monitoring device is characterized in that the monitoring result display means according to the second aspect hierarchically displays a conceptual rule and a specific rule together with the evaluation result. To do.

According to a sixth aspect of the present invention, the operation parameter monitoring device is characterized in that the monitoring result display means according to the third aspect displays the item indicating the basis together with the evaluation result.

According to a seventh aspect of the present invention, the operating parameter monitoring device is characterized in that the monitoring result display means according to the fourth aspect displays an item indicating a driving caution range together with the evaluation result.

The operation parameter monitoring device according to claim 8 of the present invention comprises a parameter monitoring rule creating means for creating a parameter monitoring rule consisting only of numerical values in advance from the general plant monitoring rules and the individual plant conditions, and the monitoring rule evaluation means is The operating parameter stored in the storage means is extracted from the parameter monitoring rule and evaluated.

[0015]

The operation parameter monitoring apparatus according to claim 1 of the present invention is a general plant monitoring rule that is a general monitoring rule that does not depend on individual plants, and a specific plant-specific operation corresponding to the general plant monitoring rules. It is defined separately from the individual plant condition which is a numerical value. Therefore, the monitoring rules are easy to understand, and when designing the operating parameter monitoring device in a new plant, the general plant monitoring rules of the existing plant that were used conventionally can be used as they are, so only the individual plant conditions need to be changed. It will be. Therefore, the time required for design can be shortened.

In the operating parameter monitoring system according to the second aspect of the present invention, the general plant monitoring rules are hierarchized, and the general rules are described separately as conceptual rules and concrete rules.
Therefore, the meaning of the monitoring rules can be easily understood, and the meaning of the change can be easily understood even when remodeling.

In the operation parameter monitoring device according to claim 3 of the present invention, the general plant monitoring rule includes an item indicating the basis of the monitoring. Therefore, the meaning of the monitoring rules can be easily understood, and the meaning of the change can be easily understood even when remodeling.

In the operation parameter monitoring device according to the fourth aspect of the present invention, the general plant monitoring rule includes an item indicating an operation caution range. Therefore, a plurality of monitoring stages can be described in one monitoring rule, and the meaning of the monitoring rule can be easily understood.

The operating parameter monitoring apparatus according to the fifth aspect of the present invention hierarchically displays the evaluation results of the operating data and each monitoring rule used for the evaluation. Therefore, it becomes easy to understand each displayed monitoring rule and the evaluation result.

In the operating parameter monitoring device according to the sixth aspect of the present invention, the item indicating the basis of the monitoring rule used for the evaluation is displayed together with the evaluation result. Therefore, it is easy to understand the meaning of the displayed evaluation result.

In the driving parameter monitoring device according to the seventh aspect of the present invention, the items indicating the driving caution range are displayed together with the evaluation result. Therefore, the degree of deviation of the operating parameter from the monitoring rule can be determined at a glance, and the monitoring result can be easily understood.

In the operating parameter monitoring apparatus according to the eighth aspect of the present invention, a parameter monitoring rule that has been digitized from the general plant monitoring rule and the individual plant condition is created in advance, and the operating parameter is actually monitored and evaluated. At times, this parameter monitoring rule is referred to.

Therefore, it is possible to easily understand the meaning of the monitoring rule without lowering the execution efficiency of the monitoring evaluation.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an embodiment by an operation parameter monitoring device according to claim 1 of the present invention.

Various operating parameters of the plant 9 are measured by the measuring means 1 and sent to the computer 3 through the input means 2 to the computer together with the detection signal. The storage means 4 included in the computer 3 inputs this operation parameter and stores it in the computer 3.

On the other hand, inside the computer 3, each of the general plant monitoring rule definition means 5 for describing a general plant monitoring rule table 5t, which is a collection of monitoring rules for monitoring the plant, and the general plant monitoring rule table 5t. 1st showing concrete numerical value for each plant corresponding to the monitoring rule
And individual plant condition defining means 6 for describing the second individual plant condition tables 6t1 and 6t2.

The monitoring rule evaluation means 7 in the computer 3 which is periodically activated is the general plant monitoring rule table 5
The monitoring rules are sequentially taken out from t, the monitoring rules are converted into concrete numerical values that can be executed in the computer based on the first and second individual plant condition tables 6t1 and 6t2, and stored according to the converted monitoring rules. Retrieve operating parameters and evaluate the operating parameters. If the monitoring rule evaluation means 7 evaluates that the operating parameter deviates from the operating range specified by the monitoring rule, the monitoring result display means 8 displays
The values of the monitoring rules and the operating parameters are displayed on a display device such as a CRT.

The general plant monitoring rule defining means 5 is described below.
General plant monitoring rule table 5t described by
2 and the first and second individual plant condition tables 6t1 and 6t2 described by the individual plant condition defining means 6 will be described with reference to FIGS. 3 and 4, respectively.

In FIG. 2, the general plant monitoring rule table 5t defines, as its items, general operating parameter names to be monitored in the operation of the plant, a method for evaluating the operating range of operating parameters, and an operating range of operating parameters. It has a default value name. For example, the first monitoring rule is to monitor the “upper limit” of the operating parameter “plant output” with the specified value of “output safety upper limit value”, and to monitor when the “plant output” exceeds the “output safety upper limit value”. It is described that the evaluation means 7 displays the result.

In FIG. 3, the first individual plant condition table 6t1 is a general plant monitoring rule table 5t.
The operating parameter names described in 1 and the corresponding specific numerical values are described. For example, the first operation parameter name “plant output” indicates that this computer has a value of “001” as a number. The number “001” on the computer corresponds to the address on the storage area of the operating parameters stored by the storage means 4.

On the other hand, in FIG. 4, the second individual plant condition table 6t2 includes the operating range stipulated value name described in the general plant monitoring rule table 5t and the corresponding comparison reference value which is a specific numerical value. It has been described.
For example, the first operating range specified value name "output safety upper limit value"
Is the comparison reference value "1" that is actually compared on this computer.
000 ”.

The operation of the monitoring rule evaluation means 7 will be described with reference to the flowchart of FIG. The cyclical evaluation of the operating parameters begins at the starting point P1. First, in step S601, a pointer for pointing one general plant monitoring rule in the general plant monitoring rule table 5t shown in FIG. 2 is initialized. Here, since it is just after initialization, the leading monitoring rule (the first monitoring rule in FIG. 2) is designated. Next, in step S602, this item is selected from the first individual plant condition table shown in FIG. 3 by using the operation parameter name (in this case, “plant output”) of the instructed general plant monitoring rule as a key. The operation parameter identification number (“001” in this case) that is the corresponding computer number is acquired. Next in step S603.
Then, using the specified operating range specified value name of the general plant monitoring rule (in this case "output safe upper limit value") as a key,
From the second individual plant condition table 6t2 shown in FIG. 4, a comparison reference value (“1000” in this case) which is a numerical value on the computer corresponding to this item is acquired. As described above, the actual values for evaluating the operating parameters on the computer are obtained by the operations of steps S602 to S603. Next, in step S604, based on the operating parameter identification number corresponding to the computer number of the operating parameter acquired in step S602, the corresponding operating parameter (in this case, “plant The actual measurement of "output").
Next, in step S605, the operating parameters are evaluated according to the description of the general plant monitoring rule instructed based on the values specified by the first and second individual plant condition tables 6t1 and 6t2. In this case, it is evaluated whether or not the measured plant output value exceeds the comparison reference value “1000” (whether it exceeds the upper limit).

Next, in step S606, it is determined whether or not the operating parameter value is within this operating range, and if it is not within the operating range (the measured plant output value exceeds the comparison reference value "1000"). If so, the evaluation result is passed to the monitoring result display means 8 in step S607. The process is continued in the next step S608 regardless of the determination result in step S606, and the pointer is moved forward by one to indicate the location of the next rule in the general plant monitoring rule table 5t shown in FIG. (In this case, this pointer points to the second column in FIG. 2). Next, in step S609, the position of the pointer is determined. The pointer is the general plant monitoring rule table 5t shown in FIG.
If it exceeds the range, it is judged that the evaluation of all the monitoring rules is completed, the process returns to the beginning, waits for the next cycle, and the evaluation is repeated from the beginning of the monitoring rules. If the pointer is still within the range of the description of the monitoring rule, the process returns to step S602 and the evaluation of the next monitoring rule is started.

According to the embodiment of claim 1, the monitoring rules are described by the values actually used inside the computer as in the conventional case, but in general, the monitoring rules do not depend on the values for each individual plant. Even when designing an operating parameter monitoring device in a new plant, it is defined separately as a table describing various monitoring rules and a table describing numerical values inside the computer corresponding to the general monitoring rules. However, the general monitoring rules themselves can use those of the existing plant, and only the individual plant condition table that describes the values inside the corresponding computer needs to be changed, so it is necessary to design the operating parameter monitoring device. The time required can be shortened. It also makes it easier to understand the monitoring rules.

Next, an embodiment according to claim 2 of the present invention will be described with reference to FIGS. 6 and 7. 6 and 7 are respectively a first general plant monitoring rule table 5t1 which is a specific collection of monitoring rules described by the general plant monitoring rule defining means 5 of this embodiment, and a conceptual collection of monitoring rules. Second general plant monitoring rule table 5t
2 is shown. The two have a hierarchical relationship, and the monitoring rule shown in FIG. 7 is described by combining the monitoring rules shown in FIG.

In FIG. 6, the first general plant monitoring rule table 5t1 defines operating parameter names, operating range evaluation methods, and operating ranges, which are items of the monitoring rules of the general plant monitoring rule table 5t shown in FIG. In addition to the value name, a new monitoring rule name is defined. For example,
The second monitoring rule of the first general plant monitoring rule table 5t1 is to monitor the "upper limit" of the operation parameter "water supply system pressure" with a specified value of "water supply pressure operation upper limit value", and execute this monitoring rule itself. It means to call by the name "high water pressure".

In FIG. 7, the second general plant monitoring rule table 5t2 describes the monitoring rule names defined in the first general plant monitoring rule table 5t1 of FIG. 6 and the calculation method between these monitoring rules. ing. Then, one conceptual monitoring rule is defined by a combination of those monitoring rules, and a combination monitoring rule name is given to the one conceptual monitoring rule. In this figure, the monitoring rule whose combination monitoring rule name is "water system abnormality" is the monitoring rule whose monitoring rule name is "water system pressure high", or "or", and the monitoring rule name is "water system flow rate low" It states that one of the watch rules should be watched for violation of either watch rule. As the combination of the monitoring rules, not only the OR logic “or” but also the AND logic “Katsu” can be used.

As for the operation of the monitoring rule evaluation means 7 for the description of the hierarchical monitoring rules shown in FIGS. 6 and 7, the procedure described in the flowchart of FIG. 5 can be applied to the monitoring rules shown in FIG. 6 as they are. For a monitoring rule that is a combination of these monitoring rules shown in FIG. 7, see step S in FIG.
In S602 and S604, where the value of the operation parameter is acquired via the first individual plant condition table 6t, the combined monitoring rule is acquired via the first general monitoring rule table 5t1 of FIG. By making the above changes, the same procedure as shown in FIG. 5 can be applied. The combination of some monitoring rules by logical expression is performed in step S605.
It can be evaluated by a logical operation in the operation range evaluation step.

According to the embodiment of claim 2, the monitoring rules are hierarchized as shown in FIGS. 6 and 7, that is, a name is given to the monitoring rule itself and a plurality of monitoring rules are used by using the name. Since a new combined monitoring rule can be described, the meaning of each rule can be easily understood, and the meaning of the change can be easily understood even when remodeling.

An embodiment according to claim 3 of the present invention will be described with reference to FIG. FIG. 8 shows a general plant monitoring rule defining means 5
General plant monitoring rule table 5t described by
a is shown.

General plant monitoring rule table 5t in FIG.
The monitoring rule a is based on the monitoring rule newly added to the operating parameter name, the operating range evaluation method, and the specified value name of the operating range, which are the items of the monitoring rule of the general plant monitoring rule table 5t shown in FIG. The description of the surveillance rule rationale is added. For example, in the first column, the “upper limit” of the operating parameter “plant output” is monitored by the specified value of “output safety upper limit value”, and the basis of this monitoring rule is described as “by plant interlock”.

According to this embodiment, as shown in FIG. 8, the monitoring rules describe not only the monitoring rules but also the grounds of the monitoring rules, so that the meaning of the monitoring rules is easy to understand and changes are required even when remodeling. You can easily understand the meaning of.

An embodiment according to claim 4 of the present invention will be described with reference to FIG. FIG. 9 shows a general plant monitoring rule table 5tb described by the general plant monitoring rule defining means 5 according to this embodiment.

In FIG. 9, in addition to the operating parameter name, the operating range evaluation method, and the specified value name of the operating range, which are the items of the monitoring rule of the general plant monitoring rule table 5t shown in FIG. 2, the operating parameter is the operating range. Although it has not reached the point where it deviates from the above, a monitoring stage to be noted, that is, a caution stage prescribed value name that prescribes a reference value indicating a driving caution range is added. For example, in the first rule in this figure, the "upper limit" of the operating parameter "plant output"
Is monitored with the "output safety upper limit value", and the driving caution range to be noted is monitored with the caution stage specified value name "output safety high side caution value". As shown in FIG. 10, the caution stage specified value which is a specific numerical value in the computer corresponding to this "output safety high side caution value" is newly added by the individual plant condition definition means 5 to the third individual plant condition table. It is described as 6t3, and for example, the “output safety high-side caution value” takes the value “950”.

The operation of the monitoring rule evaluation means 7 of this embodiment is as follows.
The procedure shown in FIG. 5 can be applied. That is, in step S604 of FIG. 5, the place where the default value of the driving range is monitored and evaluated for each rule is set as a monitoring target at a cautionary step, and each monitoring result is displayed as a monitoring result. It may be passed to the means 8.

According to this embodiment, since a plurality of monitoring stages can be described in one monitoring rule, the meaning of the monitoring rule can be easily understood.

An embodiment according to claim 5 of the present invention will be described with reference to FIG. FIG. 11 shows the evaluation results of the operating parameters displayed on the screen by the monitoring result display means 8 of this embodiment.

In FIG. 11, in the first display portion 111, the measured operating parameters are evaluated according to the monitoring rules of FIGS. 6 and 7, and the combination when it is determined that the operating parameters deviate from the operating range. The name of the monitoring rule is displayed. The second display portion 112 displays the names of the specific monitoring rules that make up the combination monitoring rule and the relationship between these monitoring rules (see FIG. 7). Indicates the name of the corresponding operating parameter, the operating evaluation method, the value of the operating range specified value, and the value of the actually measured operating parameter. As shown
As a result of the evaluation, the items of the monitoring rules and the operating parameters that are determined to deviate from the operating range are displayed surrounded by a square frame. Specifically, the items of each monitoring rule such as "high plant output", "abnormal water supply system", "high water supply system pressure" and the actual operating parameter value of "520" of the water supply system pressure are enclosed in square boxes. And indicates that these monitoring rules and operating parameters deviate from the operating range. In addition to this, as a method of making it easier to understand that the vehicle is out of the operating range, it is also possible to adopt a method of changing the display color, a method of blinking the display, or the like.

The triangular mark in front of the display of the monitoring rule name indicates that the display item is selected by the selection means such as a mouse. From the selected monitoring rule name,
Using the monitoring rules shown in FIGS. 6 and 7, a specific combination of monitoring rules or the operating range name of the operating parameter is acquired and displayed. Specifically, if you select the conceptual combination monitoring rule name "water supply system abnormality",
From this name, it is possible to obtain a specific monitoring rule combination "high water supply system pressure or low water supply flow rate" using the table 5t2 in Fig. 7, and then a specific monitoring rule "high water supply system pressure". When selected, the table 5t1 of FIG. 6 is used from the name of this monitoring rule to “supply system pressure”,
It is possible to obtain a description of rules for specific operating parameters of "upper limit" and "500".

According to this embodiment, since the display of the monitoring result of the operation data is hierarchized and the meaning of one monitoring rule is easy to understand, the monitoring result can be easily understood.

An embodiment according to claim 6 of the present invention will be described with reference to FIG. FIG. 12 shows the evaluation results of the operating parameters displayed on the screen by the monitoring result display means 8 of this embodiment.

In FIG. 12, on the first display portion 121, the monitoring rule evaluation means 7 evaluates the operation parameters according to the monitoring rules of the general plant monitoring rule table 5ta shown in FIG. The screen when it is determined that the monitoring rule is present is displayed, and the second display portion 122 displays the item indicating the basis of the monitoring rule.

In the first display portion 121, the triangular mark before the display of the monitoring rule indicates that the display item is selected by the selection means such as the mouse. From the selected monitoring rule, the item indicating the basis of the monitoring rule is acquired using the description of the general plant monitoring rule table 5ta shown in FIG. 8, and the second display portion 1 on the right side of the screen is acquired.
22 is displayed. Specifically, "plant output 1050
If the monitoring rule of “upper limit of 1000” is selected, FIG.
It is possible to obtain a description indicating the basis of a specific monitoring rule "by a plant interlock" by using the description of.

According to this embodiment, since the item indicating the basis on which the monitoring is based is also displayed on the screen, the monitoring result can be easily understood.

An embodiment according to claim 7 of the present invention will be described with reference to FIG. FIG. 13 shows the evaluation results displayed on the screen by the monitoring result display means 8 of this embodiment.

In FIG. 13, the first display portion 131 is the name of the operating parameter when the operating parameter is evaluated based on the monitoring rule of the general plant monitoring rule table 5tb of FIG. 9, and the value of the actually measured operating parameter. , The driving evaluation method, and the value of the operating range stipulated value are displayed, and the second display portion 132 is a value indicating the driving caution range which is the monitoring stage to be noted corresponding to each monitoring rule (see FIGS. reference)
Is displayed.

In FIG. 13, in the first line, "plant output 980 upper limit 1000 attention 950", the operating parameter value "980" of the "plant output" measured at this time is the upper limit value "80" of the operating range. Although it does not exceed 1000 ", it indicates that it exceeds the specified value" 950 "indicating the monitoring stage (driving caution range) to be noted.
"Water supply system pressure 510 upper limit 50" on the second line of the screen
0 caution 480 ”means that the operation parameter value“ 510 ”of the“ water supply system pressure ”measured at this point exceeds the upper limit value“ 500 ”of the operation range, and the specified value“ 0 caution 480 ”indicates the operation caution range. 480 ”is also exceeded. The second line of the screen is surrounded by a square frame around "Water system pressure 510 upper limit 500 caution 480", but this is already the operating parameter value, and the upper limit of the operating range is the specified value of the operating caution range. Is also deviating. In addition to this, as a method of instructing that the vehicle is out of the operating range, a method of changing the display color, a method of blinking the display, or the like can be adopted.

According to this embodiment, since a plurality of monitoring stages including the items indicating the driving caution range are displayed separately, the monitoring result can be easily understood.

An embodiment according to claim 8 of the present invention will be described with reference to FIG. FIG. 14 is a block diagram of this embodiment.

In FIG. 14, the present embodiment is different from the embodiment shown in FIG. 1 in the general plant monitoring rule table 5t.
And the first and second individual plant condition tables 6t1, 6
The parameter monitoring rule creating means 50 for creating the parameter monitoring rule table pt (see FIG. 18) described in the prior art from t2 is newly provided, and the monitoring rule evaluation means 7 is the monitoring rule of the parameter monitoring rule table pt. The operating parameters are extracted and evaluated according to.

First, the operation of the parameter monitoring rule creating means 50 will be described with reference to the flowchart of FIG.

The parameter monitoring rule creating means 50 creates the parameter monitoring rule table pt in advance before the computer 3 actually executes the operation of monitoring the operating parameters.
First, starting from the starting point P11, step S1
At 401, a pointer for pointing the location of one rule in the general plant monitoring rule table 5t and a pointer for pointing one location of the parameter monitoring rule table pt to be created are initialized, and both are set to the beginning. Give instructions. Next, in step S1402, the general operation parameter name (corresponding to "plant output" in FIG. 2) that is the target of this rule is acquired from the description of the general plant monitoring rule table 5t that points the pointer. , Based on this, the first individual plant condition table 6 shown in FIG.
The operation parameter identification number ("001") corresponding to the operation parameter ("plant output") in t1 is acquired. Next, in step S1403, from the description of the general plant monitoring rule table 5t pointed to by the pointer, the operating range specified value name (in this case, "output safety upper limit value") that specifies the operating range of the operating parameter that is the target of this rule. ))
Is acquired, and based on this, a comparison reference value (“1000”) corresponding to the operating parameter specified value (“output safety upper limit value”) in the second individual plant condition table 6t1 of FIG. 4 is acquired. Next, in step S1404, the evaluation method (“upper limit”) of the operating range of the operating parameters in this rule is acquired from the description of the general plant monitoring rule instructed by the pointer, and the evaluation method inside the computer is shown. The code is converted into a code, and the operation parameter identification number acquired in step S1402 and the specified value of the operation range acquired in step S1403 are written in the corresponding position in the parameter monitoring rule table pt designated by the pointer.

Next, in step S1405, a pointer for pointing the location of one rule in the description of the general plant monitoring rule table 5t shown in FIG. 2 and the location of the parameter monitoring rule table pt to be created from now are designated. Advance the pointer for doing so by one.

Next, in step S1406, the position of the pointer is determined. If the pointer exceeds the range described in the general plant monitoring rule table 5t shown in FIG. 2, conversion of all monitoring rules has been completed, and the process proceeds to point P13 and ends. If the pointer is still within the range described in the general plant monitoring rule table 5t, the process returns to step S1402 to convert the next monitoring rule. FIG. 16 shows an example of the created parameter monitoring rule table pt.

Next, the operation of the monitoring rule evaluation means 7 will be described with reference to the flowchart of FIG.

The monitoring rule evaluation means 7, which is activated periodically, first initializes a pointer for designating one location in the parameter monitoring rule table pt shown in FIG. 15 at step S1601. Specify monitoring items. Next, in step S1602, the operation parameter identification number "001" is acquired from the description in the table pointed by the pointer, and the operation parameter value is acquired from the storage area. Next, in step S1603, the value of the specified value that defines the operating range of the operating parameter targeted by this rule, that is, the comparison reference value “1000” is acquired from the parameter monitoring rule table pt designated by the pointer. Next, in step S1604, from the description of the parameter monitoring rule table pt designated by the pointer, the evaluation method of the operating range of the operating parameter in this rule, that is, the comparison calculation identification number “0” is acquired, and step S1602
Value of the operation parameter acquired in step S1603
Evaluation is performed using the specified value of the operating range obtained in.

The evaluation result is judged in step S1605, and it is judged whether or not the value of the operating parameter is within the operating range. If it is not within the operating range, step S1606 is executed.
The evaluation result is passed to the monitoring result display means 8. The process is step S1 regardless of the determination result of step S1605.
Moving to 607, here, the parameter monitoring rule table pt
The pointer for pointing to the location of one rule in the description is advanced by one.

Next, in step S1608, the position of the pointer is determined. If the pointer exceeds the range of the parameter monitoring rule table pt, all monitoring tables have been evaluated, and the process returns to point P21 to wait for the next cycle of the parameter monitoring rule table pt. If the pointer is still within the range described in the parameter monitoring rule table pt, the process returns to step S1602 to perform the next monitoring.

As described above, in the present embodiment, the processing of the monitoring rule evaluation means 7 for the parameter monitoring rule table pt is performed by the general plant monitoring rule table 5t and the first and second individual plant tables 6t1 and 6t2 shown in FIG. Although it is almost the same as the flow of the process for and, the items of each rule of the parameter monitoring rule table pt are digitized so that they can be immediately executed in the computer 3, so that they are more efficient than the process shown in FIG. As described above, according to the present embodiment, before actually monitoring the plant, the parameter monitoring rule table in which the respective monitoring rules are numerically calculated so that the computer can immediately execute the parameter monitoring rule table is set to the general plant monitoring rule table. And because it is created from the first and second individual plant tables, not only can monitoring and evaluation be performed efficiently, but the meaning of monitoring rules is also accepted. Easy to understand.

[0071]

According to the embodiment of claim 1, monitoring /
Even if the plants to be evaluated are different, only the individual plant conditions need be changed, so the time required for design can be shortened.

According to the second aspect of the present invention, the meaning of each monitoring rule is easy to understand, and therefore the meaning of the change can be easily understood even when remodeling.

According to the embodiment of claim 3, since the monitoring rule includes an item indicating the basis of the monitoring rule,
Even when remodeling, the meaning of the change can be easily understood.

According to the fourth aspect of the present invention, since the monitoring rule includes an item indicating the driving caution range, it is possible to easily understand the evaluation results at a plurality of monitoring stages.

According to the fifth aspect of the present invention, the evaluation results of the monitoring rules are displayed hierarchically, so that the evaluation results can be easily understood.

According to the embodiment of claim 6, the evaluation result can be easily understood because the evaluation result of the monitoring rule and the item indicating the basis of the monitoring rule are displayed.

According to the embodiment of claim 7, the evaluation result of the monitoring rule is separately displayed for each of a plurality of monitoring stages including the item indicating the driving caution range, so that the evaluation result can be easily understood. be able to.

According to the embodiment of claim 8, the operating parameters are evaluated in accordance with the parameter monitoring rule table prepared in advance from the general plant monitoring rules and the individual plant conditions, so that the execution efficiency at the time of monitoring can be improved. Also, the meaning of the monitoring rules can be easily understood.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a driving parameter monitoring device according to the present invention.

FIG. 2 is a diagram showing a general plant monitoring rule table.

FIG. 3 is a diagram showing a first individual plant condition table.

FIG. 4 is a diagram showing a second individual plant condition table.

FIG. 5 is a flowchart showing the operation of the monitoring rule evaluation means.

FIG. 6 is a diagram showing a general plant monitoring rule table including specific monitoring rules.

FIG. 7 is a diagram showing a general plant monitoring rule table including conceptual monitoring rules.

FIG. 8 is a diagram showing a general plant monitoring rule table in which items indicating the basis of monitoring rules are described.

FIG. 9 is a diagram showing a general plant monitoring rule table in which items indicating an operation note range are described.

FIG. 10 is a diagram showing a third individual plant condition table.

FIG. 11 is a diagram showing a screen on which hierarchical monitoring rules and evaluation results according to the monitoring rules are displayed.

FIG. 12 is a diagram showing a screen on which items indicating the basis of the monitoring rule are displayed together with the monitoring rule and the evaluation result of the monitoring rule.

FIG. 13 is a diagram showing a screen on which a monitoring rule including a plurality of monitoring stages and an evaluation result by the monitoring rule are displayed.

FIG. 14 is a block diagram showing another embodiment according to the present invention.

FIG. 15 is a flowchart showing the operation of parameter monitoring rule creating means.

FIG. 16 is a diagram showing a parameter monitoring rule table created from general plant monitoring rules and individual plant conditions.

FIG. 17 is a flowchart showing the operation of the monitoring rule evaluation means for evaluating the operating parameter according to the parameter monitoring rule table.

FIG. 18 is a diagram showing a parameter monitoring table according to a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 measuring means 2 input means 3 computer 4 storage means 5 general plant monitoring rule defining means 5t, 5ta, 5tb general plant monitoring rule table 6 individual plant condition defining means 6t1, 6t2, 6t3 individual plant condition table 7 monitoring rule evaluating means 8 monitoring Result display means 9 Plant pt Parameter monitoring rule table 50 Parameter monitoring rule creating means

Claims (8)

[Claims] 1. A measuring means for measuring operating parameters of a plant, a storage means for inputting and storing operating parameters measured by the measuring means, and a monitoring rule for monitoring the plant are generally used as general plant monitoring rules. General plant monitoring rule defining means, individual plant condition defining means describing individual plant conditions indicating specific numerical values for each plant corresponding to the general plant monitoring rule, and the general plant monitoring rule A monitoring rule evaluating means for converting the operating parameters stored in the storage means according to the converted general plant monitoring rules based on the plant conditions and evaluating the operating parameters, and the monitoring rule evaluating means And a monitoring result display means for displaying the evaluation result of the driving parameter. Monitoring equipment. 2. The operation parameter monitoring device according to claim 1, wherein the general plant monitoring rule is composed of a conceptual rule and a concrete rule having a hierarchical relationship with each other. 3. The operation parameter monitoring device according to claim 1, wherein the general plant monitoring rule includes an item indicating the basis of the monitoring rule. 4. The general plant monitoring rule includes an item indicating an operation caution range.
The operating parameter monitoring device according to 1. 5. The operation parameter monitoring device according to claim 2, wherein the monitoring result display means hierarchically displays the conceptual rule and the specific rule together with the evaluation result. 6. The operation parameter monitoring device according to claim 3, wherein the monitoring result display means displays the item indicating the basis together with the evaluation result. 7. The driving parameter monitoring device according to claim 4, wherein the monitoring result display means displays an item indicating the driving caution range together with the evaluation result. 8. A parameter monitoring rule creating unit for creating a parameter monitoring rule consisting of only specific numerical values from the general plant monitoring rule and individual plant conditions in advance, wherein the monitoring rule evaluation unit follows the parameter monitoring rule. The operation parameter stored in the storage means is extracted and evaluated.
An operating parameter monitoring device according to any one of 1 to 7.