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WO1995011484A1 - Procede de diagnostic de defaillance - Google Patents

Procede de diagnostic de defaillance Download PDF

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Publication number
WO1995011484A1
WO1995011484A1 PCT/JP1994/001740 JP9401740W WO9511484A1 WO 1995011484 A1 WO1995011484 A1 WO 1995011484A1 JP 9401740 W JP9401740 W JP 9401740W WO 9511484 A1 WO9511484 A1 WO 9511484A1
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WO
WIPO (PCT)
Prior art keywords
failure
diagnosis
data
display
displayed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP1994/001740
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English (en)
Japanese (ja)
Inventor
Tsutomu Tsuyama
Kayo Tsunekawa
Sigeru Sato
Sadao Shimoyashiro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of WO1995011484A1 publication Critical patent/WO1995011484A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2257—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using expert systems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/26—Functional testing
    • G06F11/273—Tester hardware, i.e. output processing circuits

Definitions

  • the present invention relates to a failure diagnosis method using a computer system, and more particularly to a failure diagnosis method that makes effective use of equipment failure data and facilitates its management.
  • the present invention relates to a fault diagnosis method (Fault Tree Ana 1 ysis, hereinafter referred to as "FTA”) using a tree (Fault Tree, hereinafter referred to as "FT") representing a causal relationship of a fault.
  • FAA fault Tree Ana 1 ysis
  • FT fault Tree
  • it relates to a failure diagnosis method that is comfortable in the user interface with the computer system, and that enables investigation of the cause of the failure and more appropriate measures to be taken.
  • FIG. 1 is a system configuration diagram in a general failure diagnosis method.
  • the countermeasure collects information such as the product name, failure symptoms, and conditions, and contacts the maintenance department using telephone 2. I do.
  • the maintenance department interactively obtains the diagnosis results using the workstation 3 based on the obtained information.
  • FIG. 2 is a conceptual diagram illustrating a data flow for creating an FT and a transition of a screen in a workstation 3.
  • the data from which FTs are created are found in the market quality information analysis system 30 and the commercial test system 31. Based on the data, a database system 32 2 having market quality information and test data as data is used. To build. Then, using this database system 32, an FT is created for each product and stored in the workstation 3. Arrows A l, A 2, A 3, and A 4 indicate the flow of data at that time. The market quality information and test data can also be used to create probabilities for the FT section.
  • the screen transition 33 of the workstation 3 shows a typical example of the screen transition of the workstation.
  • a diagnostic condition is set on the diagnostic condition setting screen.
  • the diagnostic result screen can be finally displayed using the FTA on the diagnostic procedure screen to obtain a diagnostic result.
  • FIG. 3 is a diagram showing a diagnosis procedure screen when a diagnosis is performed by a conventional failure diagnosis method using FTA.
  • FIG. 4 is a diagram showing a diagnostic procedure screen lower than that of FIG.
  • Fig. 3 is a diagram of the diagnostic procedure screen S61 corresponding to the top part of the FT of the product type (refrigerator) AB001.
  • the display hierarchy display field 15 1 indicates that the display hierarchy is “1”.
  • Selection area 1559 showing the phenomenon of [No cooling (no operation at all)] and selection area 15A showing the phenomenon of [immediately after installation] correspond to the input as a phenomenon on the diagnostic condition setting screen S4. Then, the contrast is displayed in reverse. Then, when the diagnosis is to be continued, the selection area 156 of [Continue diagnosis] is selected.
  • the diagnostic procedure screen shown in Fig. 4 which is a screen corresponding to the structure of the FT, is displayed.
  • the display hierarchy is 2.
  • the diagnostician recognizes that the cause is a product error by looking at the diagnostic procedure screen, select the area 1 6 2 that indicates the phenomenon of [product error] using the mouse and invert the shading. After the message is displayed, you can take measures such as [Continue diagnosis].
  • the operator who operates the shape of the FTA has to be aware of the operation, and in some cases, the operation over multiple screens is required.
  • the failure diagnosis method according to the prior art described above processes FT by a computer system and displays the cause of the failure and countermeasures on a display device or the like.
  • the present inventors have proposed a method of performing a fault diagnosis by assigning a probability to an FT, but also consider a means of updating the probability assigned to the FT and the shape of the FT based on the diagnosis result. It has not been. It is desirable to always use the latest probability to be given to the FT. This is because the FT often needs to be updated due to the occurrence of a failure.
  • the collected equipment failure information is not in a form that can be used immediately. It is not presented.
  • the present invention has been made in order to solve the above-mentioned problems of the prior art.
  • the first object of the present invention is to perform a failure diagnosis more quickly by enabling a failure diagnosis of a device even at a failure site,
  • it is intended to provide a failure diagnosis method that makes it easier to construct an FT and that can integrally manage failure diagnosis data.
  • the second purpose is to display the FT in an easy-to-understand manner when the user performs an FTA.
  • Fault diagnosis that can perform FTA It is to provide a method. Disclosure of the invention
  • the configuration of the first invention according to the failure diagnosis method of the present invention relates to a method for performing a failure diagnosis by referring to failure data of devices collected by a computer system.
  • a failure diagnosis method characterized in that the failure data is pre-processed by a portable computer and post-processed by a host computer.
  • the failure data is collected or processed using a portable computer, and the failure is diagnosed by a host computer.
  • This is a failure diagnosis method characterized by performing unified management of the failure data.
  • the failure data of the device is data for constructing a tree representing the causal relationship of the failure, and the failure data of the device is represented using the tree representing the causal relationship of the failure.
  • This is a fault diagnosis method that is processed by the computer system.
  • the failure data of the device is stored in a portable storage device, and the failure data is processed by a portable computer, and the failure data of the device is processed by a computer system. Is the way.
  • the failure data of the device is data for constructing a tree representing the causal relationship of the failure. This is a diagnostic method.
  • the failure diagnosis is performed by using a tree representing a causal relationship of the failure by a computer system.
  • a fault having a probability of a failure cause at a node of the tree and displaying the display items displayed as a group in descending order of the probability of the node of the corresponding tree.
  • the computer system has one or more display devices and one or more input devices, and when the display items are selected using the input devices, any display items of any group can be selected.
  • the failure diagnosis method is characterized in that:
  • the computer system includes one or more display devices and one or more input devices, Selecting the display item using an input device, and displaying, on the display device, display items corresponding to a parent node and a child node of the tree node corresponding to the selected display item. Yes This is a failure diagnosis method.
  • a failure diagnosis method is characterized by displaying the selected display item and other display items separately.
  • a portable small computer is used, so that a more rapid failure diagnosis can be performed at the site of the failure.
  • Another advantage is that the use of a small portable storage device such as an IC card makes it easy to carry failure data and FTs for each product.
  • a small portable storage device such as an IC card makes it easy to carry failure data and FTs for each product.
  • a system corresponding to the product can be easily constructed.
  • construction of FT becomes easy. .
  • the reliability of the system can be improved by being able to centrally manage the data input from each personal computer with the host computer.
  • each item of FT is conceptually arranged and displayed, it is visually easy to understand, and the association of each item is automatically performed using a computer. You are not conscious of Therefore, the user is freed from the trouble of searching the FT and turning over a number of screens.
  • the efficiency of diagnosis is improved because the user can select any of the display items grouped.
  • the display items are displayed in descending order of probability, the user can make a diagnosis while guessing the correctness of the diagnosis to some extent.
  • FIG. 1 is a system configuration diagram in a general failure diagnosis method.
  • FIG. 2 is a conceptual diagram illustrating a data flow for creating an FT and a transition of a screen at a workstation 3.
  • FIG. 3 is a diagram showing a diagnosis procedure screen when performing a diagnosis using a conventional FTA failure diagnosis method.
  • FIG. 4 is a diagram showing a diagnostic procedure screen lower than that of FIG.
  • FIG. 5 shows a vertical distribution type in the fault diagnosis method according to one embodiment of the present invention.
  • 1 is a system configuration diagram of FIG.
  • FIG. 6 is a diagram of a horizontally distributed system in a failure diagnosis method according to one embodiment of the present invention.
  • Figure 7 shows an F T (part 1) that responds to the phenomenon of “remote control kikazu”.
  • Figure 8 shows an F T (part 2) that responds to the phenomenon of “remote control kikazu”.
  • Fig. 9 shows F T (Part 3) corresponding to the phenomenon of “remote control kikazu”.
  • Fig. 10 shows an F T (part 1) corresponding to the phenomenon that the compressor does not operate at all.
  • Fig. 11 shows the F T (part 2) corresponding to the phenomenon that the compressor does not operate at all.
  • FIG. 12 is a diagram showing a failure diagnosis screen in an initial state where nothing is displayed yet.
  • FIG. 13 is a diagram showing a failure diagnosis screen on which a product category is displayed.
  • FIG. 14 is a diagram showing a failure diagnosis screen on which a failure status is displayed.
  • FIG. 15 is a diagram showing a failure diagnosis screen on which the contents of the corresponding FT are presented to the user after inputting the preconditions.
  • FIG. 16 is a diagram showing a diagnostic procedure screen when [Remote control kakazu] is selected.
  • FIG. 17 is a diagram showing a diagnostic procedure screen when [Receive sound (beep) by remote control] is selected in addition to the case of FIG.
  • FIG. 11 is a diagram illustrating a diagnostic procedure screen when “Do not operate external unit” is selected.
  • FIG. 19 is a diagram showing a diagnosis result screen for the first operation example.
  • C is a diagram showing a diagnosis procedure screen when [no compressor is operated at all] is selected.
  • FIG. 21 is a diagram showing a diagnosis procedure screen when [Outdoor unit self-diagnosis lamp] is selected in addition to the case of FIG.
  • FIG. 22 is a view showing a diagnostic procedure screen when [Peak power supply power] is selected in addition to the cases of FIGS. 20 and 21.
  • Fig. 23 shows the diagnostic procedure screen when one of the lighting modes of the outdoor unit self-diagnosis lamp is selected in addition to the cases of Figs. 20, 21 and 22.
  • FIG. 23 shows the diagnostic procedure screen when one of the lighting modes of the outdoor unit self-diagnosis lamp is selected in addition to the cases of Figs. 20, 21 and 22.
  • FIG. 24 is a diagram showing a diagnosis result screen for the second operation example.
  • FIG. 5 is a block diagram of a vertical distributed system in the fault diagnosis method according to one embodiment of the present invention
  • FIG. 6 is a block diagram of a horizontal distributed system in the fault diagnosis method according to one embodiment of the present invention. It is.
  • the fault diagnosis system shown in Fig. 5 is realized by a so-called vertically distributed computer system, in which a central host computer is connected to a plurality of local computers, or workstations. It is a form that is.
  • a portable hand-held computer is used for input and diagnosis at the site where a failure has occurred. This is the failure data
  • Data, adjustments, repair methods, etc. that are the basis for investigating the cause in diagnosis, and the latest FT are stored in the IC card h6 for each product, and the IC card is selected and replaced according to the target product. Do.
  • the performance of fault diagnosis and repair is, for example, once a week, at a branch-level base that has the function of coordinating the site, collecting data from the handheld 'combi-computer h5 and managing the station h4. Can be uploaded.
  • the base with the data collection and management station h4 can perform fault diagnosis, adjustment, and repair instructions using the primary station h2 and the image filing system h3. It can answer inquiries from service personnel who do not have a heald computer h5.
  • Each of the bases mentioned here is connected to a host computer hi that performs the center function nationwide, and uploads the results of failure diagnosis and repair as well as It is a mechanism to download a summary of this information that has been uploaded.
  • FIG. 6 shows an embodiment realized by a so-called horizontally distributed computer system, in which a plurality of workstations are connected by LAN (LocalAreaNewwork). With this system, diagnosis can be performed at each workstation, the connected image filing system can be accessed, and adjustment and repair measures can be instructed while referring to the image information.
  • LAN LocalAreaNewwork
  • FIG. 7 An FT according to the present embodiment will be described with reference to FIGS. 7 to 11.
  • FIG. 7 An FT according to the present embodiment will be described with reference to FIGS. 7 to 11.
  • Fig. 7 to Fig. 9 show the FT corresponding to the phenomenon of "remote control kikazu".
  • Figures 10 and 11 are FTs that respond to the phenomenon that the compressor does not operate at all.
  • FIGS. 7 to 9 show a set of three F T's, which should be connected with connectors.
  • FIGS. 10 and 11 show a pair of FTs, and please connect them with connectors.
  • the data structure of the FT node (tree This is a term to be referred to as “section”. 7 to 11 show the abscissa and the ordinate. Therefore, we will use this pair of numbers to represent the FT node. .
  • “remote control Kikazu” (4, 2 6), “the power supply voltage NG” (5, 28), "the compressor without any operation” (3, 1 5 7 0) c also is as
  • “remote control” [61%] (4, 26). This probability represents the occurrence probability of the event, and the sum of the child nodes is 100% for the upper node.
  • FIG. 12 is a diagram showing a failure diagnosis screen in an initial state where nothing is displayed yet.
  • FIG. 13 is a diagram showing a failure diagnosis screen on which a product category is displayed.
  • FIG. 14 is a diagram showing a failure diagnosis screen on which a failure status is displayed.
  • FIG. 14 shows a case where "XY01" is input.
  • the number of cases in FIG. 14 indicates the number of registered contents. If there are more items than can be displayed on the screen, use the scroll bar displayed on the right side of the items. You can also scroll. This completes the input of the initial conditions for diagnosis.
  • FIG. 15 is a diagram showing a failure diagnosis screen on which the contents of F # corresponding to the preconditions are input to the user after inputting the preconditions.
  • FTs are classified from various viewpoints, and are displayed in the categories.
  • the classification is made into [failure content] dl, [self-diagnosis mode] d2, [confirmation content] d3, and [failure cause] d4.
  • the phenomenon hierarchy on the FT is displayed as d1, the node with the self-diagnostic flag on d2, the node between the phenomenon hierarchy and the cause hierarchy as d3, and the cause hierarchy as d4. .
  • the display order of the elements in each category is displayed in order from the upper hierarchy on the FT and from the top on the diagram.
  • the contents of the FT fit on one screen, and each time the operation is performed, the screen display dynamically changes and the necessary information is displayed, so that multiple screens are turned as shown in the conventional example You will be released from the hassle.
  • the user interface can be said to be easy to use in that respect as well.
  • the first operation example will be described with reference to FIGS. 15 to 19. At this time, the FT in FIGS. 7 to 9 is appropriately referred to.
  • FIG. 16 is a diagram showing a diagnostic procedure screen when [Remote control kaze] 1501 is selected.
  • FIG. 17 is a diagram showing a diagnostic procedure screen when [Receive sound (pick) with remote control] 1601 is selected in addition to the case of FIG.
  • FIG. 18 is a diagram showing a diagnosis procedure screen when [do not operate outdoor unit with service SW] 1701 in addition to the cases of FIGS. 16 and 17.
  • FIG. 19 is a diagram showing a diagnosis result screen for the first operation example.
  • the first operation example is a case where in FIG. 15, 6.
  • [remote control] 1501 is selected as the failure content.
  • the selection can be made by moving the mouse pointer to indicate, or by keyboard. In that case, the screen will be as shown in Figure 16.
  • the FT corresponding to the selection of [Remocon Control] is the portion indicated by ⁇ 01 in FIGS. 7 to 9.
  • the lower item of "Remote control key" (4, 26) corresponding to the selected [Remote key switch] of the selected [Remote key switch] indicates the content of confirmation and the cause of failure. Are displayed in groups. [Remote control] The hatching of 1602 indicates that it was actually selected. In the display, duplicates of the corresponding items, for example, “2 ⁇ ⁇ Out of fuse” (9, 33), “2A out of fuse” (9, 57), only one item is displayed. To save display space.
  • the hatched [Remote control key] 1802, [Receive sound (beep) with remote control] 1.803, [Do not run outdoor unit with service SW] 1804 are actually Selected part.
  • [Leave the power monitor on] 1805 is one of the nodes corresponding to the selected item [Do not run outdoor unit with service switch] “7,40”. Note that it implements the next node, “Leave the power monitor on” (6, 39).
  • the screen shifts to the diagnosis result screen in Fig. 19 and the diagnosis result is obtained. That is, the cause squeezed by the procedure from FIG. 15 to FIG. 18 and the corresponding action are displayed.
  • the [diagnosis result] command 1801 can be selected in any of the phases shown in FIGS. 15 to 18.
  • the candidates of the cause are displayed in descending order of the product of the probabilities given to the nodes of each FT on the selectable path.
  • the probability “17%” of “cement resistance” in FIG. 19 is the occupancy of “cement resistance exchange” (10, 40) on the FT in FIG.
  • On the same path from the first level to the cause level that is, in Fig. 7, "Remocon control is not possible” (4, 26) [61%] or "Do not operate outdoor unit with service switch” (7, 40) [50%]) is obtained (however, duplicates are added), and sorted in descending order so that the sum becomes 100.
  • the causes are “cement resistance disconnection” (9, 40), “10 to 25 A fuse disconnection” (9, 41), and “CN6 contact NG” (9, 41). 9, 42), “Photocoupler NG” (9, 43), “Electrolytic capacitor NG” (9, 44), and “Outdoor power supply circuit NG” (9, 45) are squeezed and the corresponding measures are taken. "Replacement of cement resistor” (10, 40), “Replacement of fuse and fuse holder” (10, 41), “Retouch CN6 contact” (10, 42), (10, 43), “Electrolytic capacitor / replacement” (10, 44), and “Outdoor power supply circuit / inspection and repair” (10, 45) are displayed. Become.
  • the summary of phenomena and the history of diagnosis are displayed in the form of a summary of the phenomena and the history of diagnosis input by the previous operations in a organized form in Table 901.
  • the results of the diagnosis are arranged and displayed in the form of “part name” and “treatment”.
  • FIG. 20 is a diagram showing a diagnostic procedure screen when [No compressor is operated] 1502 is selected.
  • FIG. 21 is a diagram showing a diagnosis procedure screen when [Outdoor unit self-diagnosis lamp] 2001 is selected in addition to the case of FIG.
  • FIG. 22 is a view showing a diagnostic procedure screen when [Peak power supply power] is selected in addition to the cases of FIGS. 20 and 21.
  • FIG. 23 shows the diagnostic procedure screen when one of the lighting modes of the outdoor unit self-diagnosis lamp is selected in addition to the cases of Figs. 20, 21 and 22.
  • FIG. FIG. 24 is a diagram showing a diagnosis result screen for the second operation example.
  • the second operation example is a case where in FIG. 15, 8. [No operation of compressor at all] 1502 was selected as the failure content. In that case, the screen will be as shown in Figure 20.
  • the FT corresponding to the selection of [No compressor operation at all] is the part indicated by f11 in Figs. 10 and 11.
  • the lower-level items of the selected FT “no compressor at all” (3, 157 0) of the corresponding FT of the selected [no compressor at all] are displayed in groups, like the cause of failure.
  • the display item corresponding to “Outdoor unit self-diagnosis lamp” is 2. [Outdoor unit self-diagnosis lamp] of the self-diagnosis mode.
  • the lighting mode is determined by the flag attached to the node, and the node that summarizes it, here, the “outdoor unit self-diagnosis lamp” in Fig. 10 (5, 158 0) Is displayed in the “Self-diagnosis mode” column in FIG. This is because, as described later, when this is selected, a special user interface is provided.
  • the outdoor unit self-diagnosis lamp lighting mode screen is closed, and the screen shifts to FIG.
  • the “peak power cut” (9, 40) was squeezed as the cause, and the corresponding measures were “power module check 'replacement” (10, 1609), Compressor / Inspection / Replacement ”(10, 1610),“ Control Board Inspection / Replacement ”(10, 1611),“ Power Board / Inspection / Replacement ”(10, 1612) ) Will be displayed.
  • the display of the diagnosis result screen of FIG. 24 is similar to that of the first operation example.
  • the first aspect of the present invention it is possible to perform a failure diagnosis of a device even at a failure site, to perform a failure diagnosis more quickly, and to further facilitate the construction of an FT, and to integrate the failure diagnosis data.
  • a fault diagnosis method that can be managed can be provided.
  • the second invention when the user performs an FTA, the FT is displayed in an easy-to-understand manner, the operability is improved, and the system is not proficient in the concept of the FT. It is possible to provide a failure diagnosis method that allows a user who is not used to operating the system to perform FTA.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

Le procédé de diagnostic de défaillance selon l'invention comprend les étapes suivantes: collecte de données relatives aux défaillances d'une machine, effectuée par un système informatique; organisation d'une base de données comprenant les relations causales des défaillances, sur la base des données de défaillance; détermination des causes des défaillances sur la base des données de la base de données par entrée des phénomènes associés aux défaillances de la machine s'étant produites sur le marché; et affichage des informations de traitement à des fins de réparation de la machine. Les points à déterminer jusqu'à ce que les causes de la défaillance enregistrée dans la base de données soient trouvés sont classifiés dans l'ordre de leur probabilité d'apparition et montrés à l'utilisateur. Ainsi le nombre de points à sélectionner pour permettre le diagnostic des causes des pannes est réduit. Il est procédé à une gestion unifiée des fautes relatives aux pannes pour mettre à jour la base de données de façon séquentielle, sur la base des résultats de diagnostic, et le diagnostic d'une panne est effectué in situ, au moyen d'un ordinateur tenu à la main par le dépanneur.
PCT/JP1994/001740 1993-10-19 1994-10-17 Procede de diagnostic de defaillance Ceased WO1995011484A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP26061493A JP3151093B2 (ja) 1993-10-19 1993-10-19 故障診断方法
JP5/260614 1993-10-19

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WO1995011484A1 true WO1995011484A1 (fr) 1995-04-27

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PCT/JP1994/001740 Ceased WO1995011484A1 (fr) 1993-10-19 1994-10-17 Procede de diagnostic de defaillance

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1357369A2 (fr) 2002-04-25 2003-10-29 Kabushiki Kaisha Toshiba Dispositif et méthode pour diagnostiquer le facteur d'endommagement d'une machine
WO2005031486A1 (fr) * 2003-09-26 2005-04-07 Siemens Aktiengesellschaft Procede et dispositif pour la determination des causes de defaillances et de limitations de rendement dans des installations
US7266515B2 (en) * 2000-04-20 2007-09-04 General Electric Company Method and system for graphically identifying replacement parts for generally complex equipment
US9239991B2 (en) 2013-09-05 2016-01-19 General Electric Company Services support system and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102373235B1 (ko) * 2017-09-04 2022-03-11 엘지전자 주식회사 냉동공조시스템 및 그 진단방법
JP6971191B2 (ja) * 2018-03-30 2021-11-24 株式会社Ｎｔｔドコモ 表示装置及びプログラム
CN112214498B (zh) * 2020-11-03 2024-05-24 中国航空工业集团公司西安航空计算技术研究所 一种生成机载维护配置数据库的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03154847A (ja) * 1989-11-13 1991-07-02 Komatsu Ltd 故障診断装置
JPH0423182A (ja) * 1990-05-18 1992-01-27 Fuji Xerox Co Ltd 情報処理装置
JPH04299422A (ja) * 1991-03-27 1992-10-22 Yamatake Honeywell Co Ltd 異常診断方法
JPH04321133A (ja) * 1991-04-22 1992-11-11 Mitsubishi Electric Corp 故障診断装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03154847A (ja) * 1989-11-13 1991-07-02 Komatsu Ltd 故障診断装置
JPH0423182A (ja) * 1990-05-18 1992-01-27 Fuji Xerox Co Ltd 情報処理装置
JPH04299422A (ja) * 1991-03-27 1992-10-22 Yamatake Honeywell Co Ltd 異常診断方法
JPH04321133A (ja) * 1991-04-22 1992-11-11 Mitsubishi Electric Corp 故障診断装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7266515B2 (en) * 2000-04-20 2007-09-04 General Electric Company Method and system for graphically identifying replacement parts for generally complex equipment
EP1357369A2 (fr) 2002-04-25 2003-10-29 Kabushiki Kaisha Toshiba Dispositif et méthode pour diagnostiquer le facteur d'endommagement d'une machine
EP1357369A3 (fr) * 2002-04-25 2005-03-30 Kabushiki Kaisha Toshiba Dispositif et méthode pour diagnostiquer le facteur d'endommagement d'une machine
AU2003203820B2 (en) * 2002-04-25 2008-06-12 Kabushiki Kaisha Toshiba Apparatus and method of diagnosing machinery damage factor
WO2005031486A1 (fr) * 2003-09-26 2005-04-07 Siemens Aktiengesellschaft Procede et dispositif pour la determination des causes de defaillances et de limitations de rendement dans des installations
US9239991B2 (en) 2013-09-05 2016-01-19 General Electric Company Services support system and method

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Publication number Publication date
JPH07114484A (ja) 1995-05-02
JP3151093B2 (ja) 2001-04-03

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