JP7617818B2 - Plant maintenance support device - Google Patents

Description

This application relates to a plant maintenance support device.

In plant facilities, operation work, which covers the start-up and shutdown of the equipment, and regular inspection work for equipment maintenance are performed. In operation work, mechanical monitoring work is performed using data obtained from temperature sensors, pressure sensors, flow rate sensors, etc. installed in the equipment. In regular inspection work, the equipment status is monitored visually by inspectors. In recent years, equipment operation technology has become more advanced, and technological development is being carried out in mechanical monitoring work to detect signs of abnormalities before they occur in equipment. On the other hand, maintenance measures after detecting signs of abnormality are dependent on the experience of experts, or users are in a situation where they have to search for a solution from a huge amount of documents such as troubleshooting documents and maintenance procedure manuals. As a result, maintenance measures vary depending on the skill level of the personnel in charge, and there are delays in maintenance measures after detecting signs of abnormality.

A device has been proposed that searches for and presents documents corresponding to anomalies, with the aim of quickly taking maintenance measures after detecting signs of anomalies. For example, a device has been disclosed that searches for and presents documents corresponding to the anomaly from among related documents when a user inputs a search request word based on data detecting signs of anomalies (see, for example, Patent Document 1). Another device has been disclosed that pre-registers the association between detectable anomaly information and documents corresponding to that anomaly information, and when an anomaly occurs, presents documents corresponding to the anomaly based on the pre-registered association (see, for example, Patent Document 2).

JP 2004-302920 A JP 2011-227706 A

However, in conventional devices that present documents corresponding to anomalies in response to a user inputting search request words, there is a possibility that the search request words input by the user may vary, and as a result, the presented documents may not necessarily be accurate. Furthermore, in conventional devices that present documents corresponding to anomalies based on pre-registered associations, it is necessary to register in advance the associations between detectable anomaly information and documents corresponding to that anomaly information. In addition, there is a problem in that documents for which associations with anomaly information are not registered cannot be used as references for conservation measures.

This application has been made to solve the above-mentioned problems, and aims to provide a plant maintenance support device that can automatically, quickly, and accurately present documentation based on information detected indicating abnormalities.

The plant maintenance support device of the present application includes a data receiving unit that receives alarm information obtained from a monitoring device of the plant and pending issue information obtained from an operation device of the plant, an information storage unit that stores the alarm information and pending issue information received by the data receiving unit, a search document storage unit in which trouble documents related to troubles in the plant and business documents related to operation work of the plant are registered as electronic files for each document and each of the documents registered as electronic files is stored as a search document, a search word extraction unit that extracts search words from text information included in the alarm information and pending issue information stored in the information storage unit, and a text segmentation processing unit that segments text of the search document stored in the search document storage unit into words . The system is equipped with an extracted word management unit that extracts words from the sentences segmented by the sentence segmentation processing unit and associates them with the search documents; an identical word search unit that searches for identical words that match the words extracted by the extracted word management unit and the search words extracted by the search word extraction unit; a search result output unit that outputs the identical words searched for by the identical word search unit and information on the search documents associated with the identical words; a search result display unit that displays the identical words output from the search result output unit on a display device ; and a search document display unit that displays , based on the information on the search documents associated with the identical words output from the search result output unit , an electronic file of the search document associated with the identical word among the search documents stored in the search document storage unit on the display device.

The plant maintenance support device of the present application extracts search words from alarm information sent from the plant monitoring equipment and from pending information sent from the plant operation equipment, and automatically searches for documents associated with words that match the search words from among the vast amount of accumulated documents , so that it can automatically, quickly and accurately present documents from information on detection of abnormality signs.

1 is a configuration diagram of a plant maintenance support device according to a first embodiment; 4 is a flowchart showing an operation of the plant maintenance support device according to the first embodiment. 4 is a diagram showing an example of a screen displayed on a display device by the plant maintenance support device according to the first embodiment; FIG. FIG. 11 is a configuration diagram of a plant maintenance support device according to a second embodiment. 10 is a flowchart showing an operation of the plant maintenance support device according to the second embodiment. 13 is a diagram showing an example of a screen displayed on a display device by the plant maintenance support device according to the second embodiment; FIG. 1 is a schematic diagram illustrating an example of hardware of a search processing unit and a drawing management unit in the plant maintenance support device according to the first and second embodiments; FIG.

The plant maintenance support device according to the embodiment of the present invention will be described in detail below with reference to the drawings. Note that the same reference numerals in each drawing indicate the same or corresponding parts.

Embodiment 1.
Fig. 1 is a configuration diagram of a plant maintenance support device according to embodiment 1. As shown in Fig. 1, a plant maintenance support device 100 of the present embodiment is composed of a data receiving unit 200, an information storage unit 300, a search document storage unit 400, a search processing unit 500, and a drawing management unit 600.

The data receiving unit 200 receives alarm information 101 obtained from the plant monitoring device and pending information 102 obtained from the plant operation device. The alarm information 101 obtained from the plant monitoring device is information detected as a sign of an abnormality, and specifically, is information sent from various sensors installed in the plant. The alarm information 101 is time-series information including, for example, the signal name of the sensor, the detection value detected as a sign of an abnormality, and the time information at the time of detection. The pending information 102 obtained from the plant operation device is information concerning the occurrence of an abnormality transmitted by the operation device, and is, for example, text information such as the name of equipment approaching the end of its useful life, the name of a consumable part approaching the time for regular replacement, and a search request word entered by the operation manager.

The information storage unit 300 is composed of an alarm information storage unit 31 and a pending issue information storage unit 32. The alarm information storage unit 31 stores the alarm information 101 received by the data receiving unit 200. The pending issue information storage unit 32 stores the pending issue information 102 received by the data receiving unit 200. Since the alarm information 101 is time-series information and the pending issue information 102 is non-time-series information, the information storage unit 300 is divided into the alarm information storage unit 31 and the pending issue information storage unit 32.

The search document storage unit 400 is composed of a trouble document storage unit 41, a business document storage unit 42, and a literature storage unit 43. The trouble document storage unit 41 stores trouble documents that describe troubles that have occurred in the past or are expected to occur in the plant and procedures for resolving those troubles. The business document storage unit 42 stores business documents that describe procedures related to plant operation work. The literature storage unit 43 stores generally known literature related to plant troubles and operations. Hereinafter, these documents stored in the search document storage unit 400 are referred to as search documents.

The search processing unit 500 is composed of a search word extraction unit 51, a sentence division processing unit 52, an extracted word management unit 53, an identical word search unit 54, and a search result output unit 55. The search word extraction unit 51 extracts search words from the alarm information and pending issue information stored in the information storage unit 300. The sentence division processing unit 52 divides the sentences of the search documents stored in the search document storage unit 400 into words. The extracted word management unit 53 extracts words from the sentences divided by the sentence division processing unit 52, and associates the extracted words with the search documents. The identical word search unit 54 searches for identical words that match the search words extracted by the search word extraction unit 51 from among the words extracted by the extracted word management unit 53. The search result output unit 55 outputs the identical words searched for by the identical word search unit 54 and information on the search documents associated with the identical words.

The drawing management unit 600 is composed of a search result display unit 61 and a search document display unit 62. The search result display unit 61 displays the identical word output from the search result output unit 55 and information on the search document associated with the identical word on the display device 103. The search document display unit 62 displays the search document associated with the identical word on the display device 103.

Next, the operation of the plant maintenance support device 100 of this embodiment will be described. FIG. 2 is a flowchart showing the operation of the plant maintenance support device 100 of this embodiment, from automatically searching for related documents based on the alarm information 101 and pending issue information 102 to displaying the documents on the display device 103.

When alarm information 101 is sent from the plant monitoring device and pending issue information 102 is sent from the plant operation device, the data receiving unit 200 receives the alarm information 101 and pending issue information 102 in step S01. The alarm information storage unit 31 stores the alarm information 101 received by the data receiving unit 200, and the pending issue information storage unit 32 stores the pending issue information 102 received by the data receiving unit 200. Note that the data received by the data receiving unit 200 may be either the alarm information 101 or the pending issue information 102.

In step S02, the search word extraction unit 51 extracts search words from text information contained in the alarm information and pending issue information stored in the information storage unit 300. The text information contained in the alarm information is, for example, the name of a sensor signal, and the text information contained in the pending issue information is, for example, the name of a device approaching the end of its useful life.

In step S03, the text segmentation processing unit 52 performs a process of segmenting the text of the search document stored in the search document storage unit 400 into words.

In step S04, the extracted word management unit 53 extracts words from the sentences segmented by the sentence segmentation processing unit 52. In step S05, the extracted word management unit 53 further associates the extracted words with the search document.

In step S06, the identical word search unit 54 searches for identical words that match the search word extracted by the search word extraction unit 51 from among the words extracted by the extracted word management unit 53.

In step S07, the search result output unit 55 outputs the identical words searched for by the identical word search unit 54 and information on the searched documents associated with them.

In step S08, the drawing management unit 600 causes the display device 103 to display the search results output from the search result output unit 55. More specifically, the search result display unit 61 causes the display device 103 to display the identical word and information on the search document associated with the identical word, and the search document display unit 62 causes the display device 103 to display the search document associated with the identical word.
The drawing management section 600 may obtain the alarm information and pending issue information used by the search word extraction section 51 to extract the search words from the information storage section 300 and cause the display device 103 to display the information.

Figure 3 is a diagram showing an example of a screen displayed on the display device 103 by the drawing management unit 600 in the plant maintenance support device 100 of this embodiment. In the screen displayed on the display device 103, the display areas 103a and 103b are areas displayed by the search result display unit 61. The display area 103c is an area displayed by the search document display unit 62. The display area 103a displays the same word 13a that matches the search word. Here, the same word 13a is assumed to be "word x". The display area 103b displays the same word "word x" and information on the search document associated with the same word in a relationship diagram format. Here, the search documents associated with the same word are document A, document B, and document C. In the relationship diagram format, the same word and the search document are displayed as display components 13b and 13c, respectively. The display components are connected to each other by a connection line 13d indicating their relationship. In the display area 103b, the operations manager can select the display part 13c of the document he or she wants to refer to from among the search documents associated with the same word. For example, as shown in FIG. 3, when the operations manager selects document A, the search result display unit 61 thickens the frame of the display part 13c and the connection line 13d that connects the display part 13c to the display part 13b with the same word, so that the selected document can be easily identified.

In the display area 103c, detailed information on document A selected by the operation manager is displayed. For example, as shown in FIG. 3, the display area 103c displays electronic files 13e of document A in PDF format, TIFF format, etc., the document name 13f of document A, and the registration date 13g on which the document was registered in the search document storage unit 400. In addition, the search document display unit 62 may highlight or display in color characters parts of the displayed electronic file 13e where the same words are written to make the same words stand out. In addition, when the electronic file 13e of document A displayed in the display area 103c is selected by the operation manager, the search document display unit 62 may display the document in a separate window screen in a document viewing format. In the document displayed in this document viewing format, the search document display unit 62 may highlight or display in color characters parts of the same words where the same words are written to make the same words stand out.

In a plant maintenance support device configured in this way, search words are extracted from alarm information sent from the plant's monitoring devices and from pending information sent from the plant's operation devices, and documents associated with words that match these search words are automatically searched for among the vast number of documents stored in the search document storage unit, making it possible to automatically and quickly present accurate documents based on information on the detection of abnormality symptoms.

In addition, in the plant maintenance support device of this embodiment, search words are automatically extracted from alarm information and pending issue information, and words contained in search documents stored in the search document storage unit are automatically extracted. Then, identical words that match the search words are automatically searched for among the words contained in the search documents, so that appropriate documents can be presented regardless of the level of expertise of the operations manager.

In addition, in the plant maintenance support device of this embodiment, there is no need to register in advance the association between a huge number of search documents and search words that are anomaly information. Furthermore, in the plant maintenance support device of this embodiment, even if a new search document is added, the sentence segmentation processing unit and extracted word management unit can automatically extract words from the new search document, so the new search document can be used immediately.

Embodiment 2.
Fig. 4 is a configuration diagram of a plant maintenance support device according to embodiment 2. As shown in Fig. 4, a plant maintenance support device 100 of this embodiment is configured by adding a frequent word output unit 56 to a search processing unit 500 in the plant maintenance support device described in embodiment 1.

The frequent word output unit 56 calculates the number of occurrences of words contained in the search documents that are associated with the same word, extracts up to a predetermined number of words in descending order of frequency of occurrence as frequent words, and outputs information about the frequent words to the drawing management unit 600.

Next, the operation of the plant maintenance support device 100 of this embodiment will be described. FIG. 5 is a flowchart showing the operation of the plant maintenance support device 100 of this embodiment, from automatically searching for related documents based on the alarm information 101 and the pending issue information 102 to displaying the documents on the display device 103. In FIG. 5, the operation of the plant maintenance support device 100 from step S01 to step S07 is the same as the operation of the plant maintenance support device in embodiment 1, so a description thereof will be omitted.

In step S09, the frequent word output unit 56 calculates the number of times that words associated with the same word appear in the search documents, and extracts up to a predetermined number of words in descending order of frequency of appearance as frequent words. The predetermined number is, for example, five. In addition, at this time, the frequent word output unit 56 stores, for each frequent word, the search document in which the frequent word appears, together with the number of times the frequent word appears in that search document. Next, in step S10, the frequent word output unit 56 outputs information about the frequent words. The information about the frequent words is the frequent word, the search document in which the frequent word appears, and the number of times the frequent word appears in that search document.

In step S08, the drawing management unit 600 causes the display device 103 to display the search results output from the search result output unit 55 and the information on the frequent words output from the frequent word output unit 56.

6 is a diagram showing an example of a screen displayed by the drawing management unit 600 on the display device 103 in the plant maintenance support device 100 of this embodiment. In FIG. 6, based on the information on the frequent words output from the frequent word output unit 56, the frequent words that appeared in documents A and B are "word a", the frequent words that appeared in documents B and C are "word b", and the words that appeared only in document A are "word c". Then, it is assumed that the same word "word x" appears most frequently, followed by "word a", "word b", and "word c" in that order. In the display area 103a, the same word 13a that matches the search word is displayed, as in the first embodiment. In the display area 103b, the same word "word x", information on the search document associated with the same word, and information on the frequent word are displayed in the form of an association diagram. In the association diagram format, the same word, the search document, and the frequent word are displayed as display components 13b, 13c, and 13h, respectively. The display parts are connected to each other by a connection line 13d indicating their relationship. Detailed information on document A selected by the operation manager is displayed in the display area 103c. For example, as shown in FIG. 6, the display area 103c displays the electronic file 13e of document A in PDF format, TIFF format, etc., the document name 13f of document A, the registration date 13g on which the document was registered in the search document storage unit 400, and the like, as well as the frequently occurring words 13j appearing in document A. In addition, in the displayed electronic file 13e, the search document display unit 62 may highlight or display in color characters the parts in which the same words and the same words as the frequently occurring words are written, to make the same words and the frequently occurring words stand out. Furthermore, the display area 103d displays the frequently occurring words 13k in order of frequency of occurrence. Note that this display area 103d is an area displayed by the search result display unit 61.

In a plant maintenance support device configured in this way, search words are extracted from alarm information sent from the plant's monitoring devices and from pending information sent from the plant's operation devices, and documents associated with words that match these search words are automatically searched for among the vast number of documents stored in the search document storage unit, making it possible to automatically and quickly present accurate documents based on information on the detection of abnormality symptoms.

In addition, the plant maintenance support device of this embodiment can present frequently occurring words in documents related to the search word in addition to the same words that match the search word, so it can provide the operations manager with information aimed at identifying events from event analogies related to abnormalities. As a result, the plant maintenance support device of this embodiment can encourage the operations manager to take action to quickly resolve the event.

The search processing unit 500 and the drawing management unit 600 are configured from a processor 10 and a storage device 11, as shown in FIG. 7, which is an example of hardware. The storage device includes a volatile storage device such as a random access memory and a non-volatile auxiliary storage device such as a flash memory, not shown. A hard disk auxiliary storage device may also be included instead of the flash memory. The processor 10 executes a program input from the storage device 11. In this case, the program is input from the auxiliary storage device to the processor 10 via the volatile storage device. The processor 10 may output data such as the results of calculations to the volatile storage device of the storage device 11, or may store data in the auxiliary storage device via the volatile storage device.

Although the present application describes various exemplary embodiments, the various features, aspects, and functions described in one or more embodiments are not limited to application to a particular embodiment, but may be applied to the embodiments alone or in various combinations.
Therefore, countless modifications not exemplified are conceivable within the scope of the technology disclosed in the present application, including, for example, modifying, adding, or omitting at least one component, and further, extracting at least one component and combining it with a component of another embodiment.

10 processor, 11 storage device, 13a identical word, 13b, 13c, 13h display part, 13d connection line, 13e electronic file, 13f document name, 13g registration date, 13j, 13k frequent words, 31 alarm information storage unit, 32 pending information storage unit, 41 trouble document storage unit, 42 business document storage unit, 51 search word extraction unit, 52 sentence division processing unit, 53 extracted word management unit, 54 identical word search unit, 55 search result output unit, 56 frequent word output unit, 61 search result display unit, 62 search document display unit, 100 plant maintenance support device, 101 alarm information, 102 pending information, 103 display device, 103a, 103b, 103c, 103d display area, 200 data receiving unit, 300 information storage unit, 400 Search document storage unit, 500 search processing unit, 600 drawing management unit.

Claims (7)

a data receiving unit that receives alarm information obtained from a monitoring device of the plant and pending issue information obtained from an operation device of the plant;
an information storage unit that stores the alarm information and the pending issue information received by the data receiving unit;
a search document storage unit in which trouble documents relating to troubles in the plant and business documents relating to operations of the plant are registered as electronic files for each document, and each of the documents registered as electronic files is stored as a search document;
a search word extraction unit that extracts search words from text information included in the alarm information and the pending issue information stored in the information storage unit;
a text segmentation processing unit that segments the text of the search document stored in the search document storage unit into words ;
an extracted word management unit that extracts words from the sentences segmented by the sentence segmentation processing unit and associates the words with the search document;
an identical word search unit that searches for an identical word that matches the word extracted by the extracted word management unit and the search word extracted by the search word extraction unit;
a search result output unit that outputs the identical words searched for by the identical word search unit and information on the searched document associated with the identical words;
a search result display unit that displays the identical words output from the search result output unit on a display device ;
a search document display unit that displays, on the display device, electronic files of the search documents associated with the same word among the search documents stored in the search document storage unit based on information of the search documents associated with the same word output from the search result output unit ;
A plant maintenance support device comprising: 2. The plant maintenance support device according to claim 1, further comprising a frequent word output unit that calculates the number of occurrences of words included in the search document associated with the same word, extracts up to a predetermined number of words included in the search document associated with the same word in order of the number of occurrences as frequent words, and outputs information on the frequent words. 3. The plant maintenance support device according to claim 2, wherein the search result display unit displays the frequent words on the display device based on the information on the frequent words output from the frequent word output unit. the search result display unit causes the display device to display a first diagram indicating that the searched document associated with the same word contains the same word;
The plant maintenance support device according to any one of claims 1 to 3, characterized in that the first diagram is a diagram showing that the same word is contained in the search document associated with the same word by using a connecting line connecting a display part representing the same word and a display part representing the search document associated with the same word. the search result display unit displays on the display device a second diagram indicating that the searched document associated with the same word contains the frequent word;
The plant maintenance support device according to claim 3, characterized in that the second diagram is a diagram showing that the search document associated with the same word contains the frequent word by using a connection line connecting a display part representing the search document associated with the same word and a display part representing the frequent word. The plant maintenance support device according to claim 4 or 5, characterized in that the search document display unit displays, on the display device, an electronic file of the search document corresponding to a selected display part among display parts representing the search document associated with the same word. a data receiving unit that receives alarm information obtained from a monitoring device of the plant and pending issue information obtained from an operation device of the plant;
an information storage unit that stores the alarm information and the pending issue information received by the data receiving unit;
a search document storage unit in which search documents including trouble documents relating to troubles in the plant and business documents relating to operation work are stored;
a search processing unit including a search word extraction unit which extracts search words from the alarm information and the pending issue information stored in the information storage unit, a sentence segmentation processing unit which segments sentences of the search documents stored in the search document storage unit, an extracted word management unit which extracts words from the sentences segmented by the sentence segmentation processing unit and associates the extracted words with the search documents, an identical word search unit which searches for an identical word that matches the search word extracted by the search word extraction unit from among the words extracted by the extracted word management unit, and a search result output unit which outputs the identical word searched for by the identical word search unit and information on the search documents associated with the identical words;
a drawing management unit that displays the identical word and the searched document associated with the identical word on a display device based on information of the identical word and the searched document associated with the identical word output from the search result output unit,
The plant maintenance support device is characterized in that the search processing unit calculates the number of times that words included in the search document associated with the same word occur, and extracts up to a predetermined number of words included in the search document associated with the same word in order of the number of times that they occur as frequent words, and further includes a frequent word output unit that outputs information about the frequent words to the drawing management unit.

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