JP2000056825A - Plant monitoring equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To promptly display, in normal operation of a plant and when a process error occurs, an error-occurring device identified by a change in a detection signal in correspondence with the device on a detailed plant system diagram. . A plant monitoring device includes a plant state measurement device, a data collection device, and a display device.
The plant state measuring device 10 inputs a detection signal from a measuring device and transmits the detection signal to the data collecting device 20. Data collection device 2
0 saves the process state values as individual plant state data in chronological order. The display device 30 displays the plant system diagram CAD data and the plant status data from the data collection device 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD (Computer Aided Design) for accumulating design information on equipment constituting a large-scale plant such as a nuclear power plant, a thermal power plant, and a chemical plant.
gn) The present invention relates to a plant monitoring device that obtains operation and maintenance support information from data and effectively uses the information for operation and the like.

[0002]

2. Description of the Related Art A large-scale plant such as a nuclear power plant, a thermal power plant, and a chemical plant is composed of an enormous number of devices and parts, and when a local abnormality occurs in some of the devices and parts. It is extremely important to detect this at an early stage and take appropriate measures to prevent the local anomalies from spreading to a wide area in order to increase plant operation rate and ensure safety. In this large-scale plant, it is necessary to detect various process state values related to performance through a measuring instrument in addition to detecting an abnormality that has occurred in equipment, components, and the like. These detection signals are transmitted to the operator without interruption, but it is virtually impossible for the operator to monitor all of them because the signals are so large.

For this reason, many plants are equipped with a plant monitoring device that automatically performs all data processing using a computer and determines changes in the state of the plant. In addition, various types of monitoring and diagnostic devices have been developed to support monitoring and diagnosis in order to more accurately and efficiently perform monitoring and diagnosis by operators. In a typical method, a change in a typical plant state value is stored in advance as a change pattern in a manner assuming an abnormality that may occur in a plant, and a change in the plant state value is stored in a change pattern when an abnormality occurs. The presence of an abnormality is determined by comparing with, and when it is determined that there is an abnormality, the operator is notified.

[0004]

The above-described plant monitoring apparatus has the following problems. That is, if there is any abnormality in the process, the detection signal changes, and the abnormality detection information is displayed on the monitor's own display screen. In this case, the display of the abnormal part on the plant system is simplified. It is only displayed on the system diagram or only the signal name is displayed, it is necessary to display the drawing using other means to check in detail, and to respond quickly Despite the requirement, there is a problem in that much time is spent until the confirmation is completed, and the labor required for this is very large.

[0005] In addition, when an abnormality occurs in a process, an abnormality location is specified by a change in a detection signal at that time, and abnormality diagnosis information is displayed on a display screen unique to the monitoring device. The location is displayed on a simplified system diagram or only the name of the device where the error occurred is displayed, and the drawing is displayed using other means for detailed confirmation However, there is a problem that it is necessary to confirm, and it takes a lot of time to complete the confirmation, and the labor required for the confirmation is very large.

In addition, it is necessary to display and confirm a signal related to a signal identified as a cause in the abnormality diagnosis, but it is indispensable to perform verification on a detailed system diagram, and to have knowledge of a plant. It takes a very long time to display related signals because only a very limited number of people can do so and to complete the confirmation.

[0007] On the other hand, with respect to only the on-site measuring instruments or the instruments on which the measuring instruments are not installed in advance, it is necessary to take in information related to these instruments into the plant monitoring and diagnosing apparatus and display the information so as to be useful for the diagnosis. However, this requires significant modifications to existing equipment, and the addition of an interface device must be considered in order to capture data into the computer, which is hardly practical in practice.

Accordingly, it is an object of the present invention to provide a method for promptly displaying, in normal operation of a plant and occurrence of an abnormality in a process, an abnormality-occurring device identified by a change in a detection signal in correspondence with the device on a detailed plant system diagram. It is an object of the present invention to provide a plant monitoring device capable of performing the above.

It is another object of the present invention to provide a plant monitoring apparatus capable of searching a detailed plant system diagram for a signal related to a signal specified as a cause due to abnormal rarity and displaying the signal promptly. .

[0010]

In order to achieve the above object, an invention according to claim 1 is provided with a plant state measuring device for outputting each plant state value detected by a plurality of devices incorporated in a plant. A data collection device that stores each process status value in a time series as plant status data that has a distinct type for each device, and a sustained relationship between a plurality of devices that are assumed to constitute the plant based on the obtained plant status data. And a display device for displaying the plant system diagram CAD data in association with the data.

In the plant monitoring apparatus having the above configuration, when an abnormality occurs in a process, it can be linked to an object of a plant system diagram CAD data corresponding to a detection signal, and an easy-to-understand display corresponding to detailed CAD information can be made. Thus, the abnormality detection information can be promptly provided without spending much time for display and confirmation.

According to a second aspect of the present invention, the display device includes a conversion table for linking the unique names of the devices in the plant with the unique names of the devices on the plant system diagram CAD data, and each of the processes measured by the device. The present invention is characterized in that plant state data based on a state value is displayed in association with a device on the plant system diagram CAD data.

[0013] In the plant monitoring apparatus having the above-described configuration, the equipment on the plant system diagram CAD data can be specified from the signal obtained during the measurement, and the plant status data can be displayed in association with the equipment on the CAD data. .

Further, according to a third aspect of the present invention, the display device determines a device failure based on a transient change of a detection signal of each process state value or a propagation of a change between signals from a qualitative characteristic of a long-term change. It has a fault diagnosis knowledge database that extracts the qualitative characteristics of transient or long-term changes in the detected signal using the fault diagnosis knowledge database. And a signal related to the initiating event is displayed in correspondence with the equipment on the plant system diagram CAD data.

In the plant monitoring apparatus having the above-described configuration, a signal related to an event causing an abnormality is obtained by propagation of a change between signals created in advance and collation of the captured process state value with a detection signal pattern. Plant system diagram C
A signal related to the initiating event can be displayed corresponding to the device on the AD data.

According to a fourth aspect of the present invention, in addition to the failure diagnosis knowledge database, the display device further comprises a failure factor database storing knowledge about a failure factor of the device.
For the signal related to the initiating event obtained using the failure diagnosis knowledge database, the device and the failure factor which are presumed to be failures are specified by the failure factor database, and are displayed in correspondence with the devices on the plant system diagram CAD data. It is characterized by the following.

In the plant monitoring apparatus having the above configuration, signals related to the initiating event obtained in the failure diagnosis knowledge database are collated in the failure factor database, and the equipment and the failure mode items which are presumed to have failed are specified, and the plant system diagram is obtained. It can be displayed corresponding to the device on the CAD data.

Further, in the invention according to claim 5, the display device includes a failure diagnosis knowledge database and a failure factor database, and a signal related to an initiating event obtained by using the failure diagnosis knowledge database with reference to the plant system diagram CAD data. Identify the unique names of the devices before and after on the CAD data that are connected to the plant system diagram, obtain the plant status data of these devices from the data collection device, and display the plant status data in the order of connection. It is a feature.

In the plant monitoring apparatus having the above configuration, the unique names of the devices before and after on the plant system diagram CAD data connected to the signal related to the initiating event obtained from the failure diagnosis knowledge database are specified, and the data collecting apparatus specifies these names. The plant state data of the devices can be obtained in chronological order and displayed in the order of connection.

Further, the invention according to claim 6 is provided with a related device database in which the display device stores knowledge about related devices defined in advance, and uses the failure diagnosis knowledge database with reference to the plant system diagram CAD data. Identify the device that corresponds to the signal related to the initiating event obtained,
Identify the related equipment using the related equipment database, identify each signal corresponding to the same kind of equipment by referring to the conversion table for this related equipment, obtain the plant status data of the same kind of equipment from the data collection device, and once Is displayed.

In the plant monitoring apparatus having the above-described configuration, a device associated with a signal related to the initiating event obtained from the failure diagnosis knowledge database is specified, and the related device is specified by collating with the related device database. By specifying each signal corresponding to the same type of equipment, plant status data of the same type of equipment can be obtained and displayed from the data collection device.

Further, the invention according to claim 7 is provided with a bar code reader for reading the bar code attached to the device to be measured by the data collection device, wherein the bar code read using a dedicated conversion table, the device unique name, and the like. In addition to detecting the process state value of the device using a portable sensor, the obtained detection signal is input to the data collection device in association with the device unique name, and the plant based on the measured process state value It is characterized in that the state data is displayed in association with the equipment on the plant system diagram CAD data.

In the plant monitoring apparatus having the above-described configuration, a portable sensor is attached to a device for which a process state value needs to be measured, and a bar code attached to the device is read to specify a target device and measure the target device. The obtained process state value can be taken into the computer.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the plant monitoring device includes a plant state measurement device 10, a data collection device 20, and a display device 30. Plant state measurement device 1
0 inputs a detection signal from each measuring instrument (not shown) detecting the process state value and transmits it to the data collection device 20 as a sequence of discrete numerical values. In addition, the data collection device 2
A value of 0 discriminates the type of the transmitted process state value for each device and saves it as individual plant state data in chronological order.

Further, the display device 30 has a plant system diagram C
AD data (hereinafter referred to as P & ID CAD data)
Is displayed, and the plant state data transmitted from the data collection device 20 is displayed. The display device 30 includes two files. One is P & ID CAD
A P & ID CAD data file 30A that stores data, and another one is a conversion table 30B that stores a table for collation described below.

FIG. 2 shows the details of the display device 30. The display device 30 includes a signal extraction unit 31, a CAD data display unit 32, and a display 33. FIG. 3 shows a configuration example of the conversion table 30B. Item 1 and item 2 are the unique name of the signal and the P & IDCA of the signal in the plant condition measuring apparatus 10, respectively.
D indicates the unique name of the device on the information. For example, if the unique name SA003 of the signal is given, P
& ID unique name of device on CAD information A01-AA0
03 and the unique name of the signal and P
& ID CAD information is associated with the unique name of the device.

In the above configuration, when a detection signal is given to the signal extracting unit 31, the unique name of the signal and the P & DID
The corresponding device is specified from the unique name of the signal based on the conversion table 30B that links the unique name of the device on the CAD information, and the object on the P & ID CAD information is extracted.

As described above, according to the present embodiment, when an abnormality occurs in the process, the P & ID corresponding to the detection signal
Objects on CAD information can be linked, easy-to-understand display according to detailed CAD information is possible, without spending much time for display and confirmation,
Further, it is possible to quickly provide the abnormality detection information without inputting much labor.

Further, different embodiments of the present invention will be described. In FIG. 4, the plant monitoring device includes a plant state measurement device 10, a data collection device 20, and a diagnosis / display device 40. The plant state measuring device 10 receives a detection signal from each measuring device (not shown) and transmits it to the data collecting device 20 as a sequence of discrete numerical values. Further, the data collection device 20 distinguishes the type of the transmitted process state value for each device, and saves the process state value as individual plant state data in chronological order.

Further, the diagnosis / display device 40 has a P & ID
The CAD data is displayed, and the plant status data transmitted from the data collection device 20 is displayed. The diagnosis and display device 40 has a P & ID CAD data file 30A.
And a conversion table 30B.

FIG. 5 shows the details of the diagnosis / display device 40. The diagnosis / display device 40 includes a diagnosis processing unit 41, a signal / device extraction unit 42, a CAD data display unit 32, and a display 33. The diagnostic processing unit 41 has two files. One is a failure diagnosis knowledge database 40A storing knowledge on propagation of changes between signals, and the other is a failure factor database 40B storing knowledge on equipment failure factors.
6 and 7 show configuration examples of the above two databases.

In the above configuration, when a detection signal is given to the diagnosis processing section 41, the failure diagnosis knowledge database 40A
In step (1), the propagation of the change between the signals created in advance is compared with the pattern of the captured detection signal of the process state value, and the signal related to the event causing the abnormality is extracted. Further, the extracted signal and its pattern are collated in the failure factor database 40B, and the device estimated to be in failure and the failure mode item are extracted.

In the signal / device extracting section 42, the signal / device extracted by the same method as described in the above embodiment and the object on the CAD information are linked. According to the present embodiment, when an abnormality occurs in the process,
From the detected signal pattern at that time, a signal related to the cause of the abnormality and a device and a failure mode item corresponding to the failure can be associated with the corresponding object on the P & ID CAD information, and the detailed CAD can be obtained.
An easy-to-understand display in accordance with the information is possible, and the abnormality diagnosis information can be promptly provided without spending much time and investing a lot of labor for the abnormality inspection of the device.

Further, different embodiments of the present invention will be described. 8, the plant monitoring device includes a plant state measuring device 10, a data collection device 20, and a diagnosis / display device 50. Diagnosis / display device 50 is P & ID
The CAD data is displayed, and the plant status data transmitted from the data collection device 20 is displayed.

FIG. 9 shows details of the diagnosis / display device 50. The diagnostic / display device 50 includes a diagnostic processing unit 41, a signal / device extraction and connection interpretation unit 51, and a CAD data display unit 32.
And a display 33. The diagnosis processing unit 41 includes a failure diagnosis knowledge database 40A and a failure factor database 40B.

In the above configuration, when the signal / device extraction and connection interpretation unit 51 is provided with a signal relating to the event causing the abnormality obtained in the diagnosis processing unit 41, this signal and the P & ID from the P & ID CAD data file 30A are given.
The connection state is specified by collating with the CAD data.
Further, the conversion table 30B specifies the unique names of the devices connected by the upstream and downstream signals of the signal related to the initiating event, and obtains the plant state data of these devices in chronological order from the data collection device 20 in the order of connection. Is displayed.

Similarly, the increase / decrease pattern of the specified signal is displayed on the display screen of the failure diagnosis knowledge database 40A. Also, the increase / decrease pattern of the specified signal is P
& ID CAD information is displayed at a corresponding position on the display screen.

FIG. 10 shows a display example of a signal increase / decrease pattern. Arrows added to the right or left side of the signal name indicate the increase / decrease pattern of the signal when an abnormality is detected.

According to the present embodiment, when an abnormality occurs in the process, the plant state data of the detection signal and the increase / decrease pattern can be easily displayed on the related screen, the generated event can be identified, and the abnormality examination can be performed. It can be used effectively.

Further, different embodiments of the present invention will be described. In FIG. 11, the plant monitoring device includes a plant state measurement device 10, a data collection device 20, and a diagnosis / display device 60. The details of the diagnosis / display device 60 are shown in FIG. The diagnostic / display device 60 includes a diagnostic processing unit 41, a signal / device extraction and a related device search unit 6
It comprises a 1 CAD data display section 32 and a display 33. The signal / device extraction and related device search unit 61 is provided with a related device database 60 </ b> A which stores knowledge about related devices defined in advance.

In the above configuration, when a signal related to the initiating event obtained in the diagnosis processing unit 41 is given to the signal / device extraction and related device search unit 61, this signal and P
& ID P & ID from CAD data file 30A
The target device is specified by collating with the CAD data.

Further, the related device is specified from the related device database 60A which stores knowledge about the related device. In addition, the conversion table 30
In B, each signal corresponding to the same kind of equipment is specified, the plant collection data of the signal related to these signals is obtained from the data collection device 20, and these are displayed on the screen at once. Similarly, the increase / decrease pattern of the specified signal is displayed at a corresponding position on the display screen of the P & ID CAD information.

According to the present embodiment, when an abnormality occurs in the process, the plant status data of the detection signal of the device corresponding to the signal related to the initiating event and the detection signal of the same type of device and the increase / decrease pattern on the screen related thereto Can be displayed quickly, and the generated event can be identified and effectively used for abnormality diagnosis.

Further, different embodiments of the present invention will be described. In FIG. 13, the plant monitoring device includes a plant state measurement device 10, a data collection device 70, and a diagnosis / display device 60. The data collection device 70 has an input device 71 as another input means. This input device 7
1 is connected to a portable sensor 72, a signal detected here is input, and connected to a barcode reader 73,
A signal read by the barcode reader 73 is input.

In the above configuration, during the measurement at the site, the barcode attached to the device to be measured is read by the barcode reader 73.
And transmitted to the data collection device 70 via the input device 71. Further, a detection signal from the portable sensor 72 attached to the device is transmitted to the data collection device 70 via the input device 71. In this transmission, the input device 71 associates the barcode assigned to the device with the device-specific name using the dedicated conversion table 70A.

The manner of data processing in the data collection device 70 thereafter is the same as that in the above-described embodiment. In the diagnosis / display device 60, these data are processed in the same manner as described above.

The diagnostic / display device is not limited to the present embodiment, but can be combined with any of the above-described embodiments.

According to the present embodiment, even when a measuring instrument for obtaining a plant state value is not attached to the equipment in advance, the portable sensor 72 is attached to the equipment which needs to measure the process state value, By reading the code, the target device can be specified, and the measured process state value can be imported into the computer.This reduces the number of operations to be performed, such as modifying the device and adding an interface device. , Display and diagnosis.

[0049]

As described above, according to the present invention, when the plant is in normal operation and when an abnormality occurs in the process, the abnormality-causing device identified by the change in the detection signal is subjected to CA.
It is possible to quickly display the information corresponding to the equipment on the detailed plant system diagram based on the D data, and to quickly provide the abnormality detection information without spending much time for display and confirmation.

Further, in the present invention, a signal related to a signal specified as a cause in the abnormality diagnosis can be searched and displayed on a detailed plant system diagram based on CAD data. The abnormality diagnosis information can be promptly provided without spending a lot of time.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing details of the display device of FIG. 1;

FIG. 3 is a diagram showing an example of a conversion table.

FIG. 4 is a block diagram showing another embodiment of the present invention;

FIG. 5 is a block diagram showing details of the diagnosis / display device of FIG. 4;

FIG. 6 is a diagram showing an example of a failure diagnosis knowledge database.

FIG. 7 is a diagram showing an example of a failure factor database.

FIG. 8 is a block diagram showing another embodiment of the present invention.

FIG. 9 is a block diagram showing details of the diagnosis / failure device of FIG. 8;

FIG. 10 is a diagram showing a display example of a signal increase / decrease pattern.

FIG. 11 is a block diagram showing another embodiment of the present invention.

FIG. 12 is a block diagram showing details of the diagnosis / display device of FIG. 11;

FIG. 13 is a block diagram showing another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 Plant state measurement device 20, 70 Data collection device 30 Display device 30A P & ID CAD data file 30B Conversion table 40, 50, 60 Diagnosis / display device 40A Failure diagnosis knowledge database 40B Failure factor database 60A Related device database 72 Portable sensor 73 Bar Code reader

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroki Yamamoto 8th Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture Inside the Toshiba Yokohama Office (72) Inventor Yoshihiko Uhara 8th Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa (72) Inventor Masahide Kobayashi 8th Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture F-term (reference) 2F076 BA14 BA19 BD04 BE04 BE07 BE13 5H223 AA03 CC08 DD03 DD09 EE06 EE30 FF06

Claims (7)

[Claims] 1. A plant state measuring device for outputting each plant state value detected by a plurality of devices incorporated in a plant, and a given process state value as plant state data in which types are distinguished for each device. A data collection device for storing in chronological order, and a display device for displaying the obtained plant state data in association with plant system diagram CAD data representing a sustained relationship between a plurality of devices assumed to constitute the plant. Plant monitoring equipment. 2. The display device according to claim 1, further comprising a conversion table for linking a unique name of the device in the plant with a unique name of the device in plant system diagram CAD data, wherein each process state value measured by the device is provided. 2. The plant monitoring device according to claim 1, wherein the plant status data based on the data is displayed in association with the device on the plant system diagram CAD data. 3. The display device according to claim 1, wherein the display device includes a failure diagnosis knowledge database for determining a failure of the device based on a qualitative characteristic of a transient change or a long-term change of a detection signal of each process state value based on propagation of a change between the signals. Extracting a qualitative characteristic of a transient change or a long-term change of the detection signal using the failure diagnosis knowledge database, and examining propagation of a change between the respective signals to obtain a signal related to an abnormal event. 2. The plant monitoring apparatus according to claim 1, wherein a signal related to the initiating event is displayed in correspondence with the device on the plant system diagram CAD data. 4. The display device according to claim 1, further comprising: a failure factor database storing knowledge on a failure factor of the device in addition to the failure diagnosis knowledge database, wherein the display device relates to an initiating event obtained by using the failure diagnosis knowledge database. For the signal, the equipment and the cause of the failure which are presumed to be a failure are specified by the failure factor database, and the plant system diagram CA
4. The plant monitoring apparatus according to claim 3, wherein the data is displayed in correspondence with the device on the D data. 5. The display device includes the failure diagnosis knowledge database and the failure factor database, and refers to the plant system diagram CAD data to generate a signal related to an initiating event obtained by using the failure diagnosis knowledge database. Specify the unique names of the devices before and after on the plant system diagram CAD data to be connected, obtain the plant status data of these devices from the data collection device, and display the plant status data in the order of connection. The plant monitoring device according to claim 3, wherein: 6. The initiating event obtained by using the failure diagnosis knowledge database with reference to the plant system diagram CAD data, wherein the display device has a related device database storing knowledge about a predetermined related device. Identify the device corresponding to the signal related to, further specify the related device using the related device database, specify each signal corresponding to the same type of device by referring to the conversion table for this related device The plant monitoring apparatus according to claim 1, wherein the same type of plant status data of the same device is obtained from the data collection device and displayed at a time. 7. A bar code reader, wherein the data collection device reads a bar code attached to a device to be measured,
The barcode read using the dedicated conversion table is associated with the device unique name, the process state value of the device is detected using the portable sensor, and the obtained detection signal is associated with the device unique name. 2. The apparatus according to claim 1, wherein the data is input to the data collection device, and the plant state data based on the measured process state value is displayed in correspondence with the device on the plant system diagram CAD data. Plant monitoring equipment.