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WO1996007958A1 - Conseiller en diagnostics pour l'exploitation de turbines a combustion - Google Patents

Conseiller en diagnostics pour l'exploitation de turbines a combustion Download PDF

Info

Publication number
WO1996007958A1
WO1996007958A1 PCT/US1995/010998 US9510998W WO9607958A1 WO 1996007958 A1 WO1996007958 A1 WO 1996007958A1 US 9510998 W US9510998 W US 9510998W WO 9607958 A1 WO9607958 A1 WO 9607958A1
Authority
WO
WIPO (PCT)
Prior art keywords
operator
diagnostic
screen
recited
machine
Prior art date
Application number
PCT/US1995/010998
Other languages
English (en)
Inventor
Maurice A. Jenkins
Ronald S. Thomas
Original Assignee
Westinghouse Electric Corporation
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 Westinghouse Electric Corporation filed Critical Westinghouse Electric Corporation
Publication of WO1996007958A1 publication Critical patent/WO1996007958A1/fr

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4184—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by fault tolerance, reliability of production system
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31469—Graphical display of process as function of detected alarm signals
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31471—Operator can select a graphical screen at his will as help diagnostic
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33284—Remote diagnostic
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33288—Switch, select between normal and diagnostic control program
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33303—Expert system for diagnostic, monitoring use of tree and probability
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36145—In case of alarm a window is maximised automatically
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36146—Group windows into coherent sets to facilate a task
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the present invention relates generally to a computer-implemented process and system for providing information to an operator of a complex system. More particularly, the present invention relates to a computer- implemented "Diagnostic Advisor" for providing information in, an optimal manner to an operator of a combustion turbine plant.
  • One preferred application of the present invention is in connection with the operation of a combustion turbine plant and more particularly in connection with the remote operation of a combustion turbine plant. Therefore, the background of the invention and preferred embodiments of the invention are described below with reference to a system for remotely controlling a combustion turbine plant. It should be understood, however, that the present invention is by no means limited to applications involving the operation of a combustion turbine plant. Accordingly, except where they may be expressly so limited, the scope of protection of the claims at the end of this specification is intended not to be limited to applications of the invention involving combustion turbines.
  • the assignee of the present invention employs remote startup equipment at its Orlando, Florida Diagnostic Operations Center to start three combustion turbines located in Virginia.
  • the remote startup capability allows the local utility to provide continuous power to its customers after regular business hours without staffing the plant 24 hours a day.
  • the remote Diagnostic Operations Center can start the combustion turbines remotely, providing full unit power within minutes (e.g., 45 minutes) of the request.
  • the Diagnostic Operations Center employs a microprocessor-based system including graphics and communications cards.
  • the system transmits and receives data over telephone lines with the use of modems and multiplexers.
  • the turbine plant operators can transfer control of the plant to the Diagnostic Operations Center operators by turning a switch on a keyboard.
  • the transfer of control enables the Diagnostic Operations Center operators to start the turbines remotely and to remotely manipulate the plant breakers to supply power to all equipment, as necessary. It typically takes approximately 14 minutes from startup to generator synchronization for each unit and 10 more minutes to bring each unit to full load.
  • the power demanded by the starting motors is typically too high to allow all of the turbines to be started at once. Therefore, the turbines are typically started sequentially. Accordingly, the Diagnostic Operations Center operator must carefully sequence the startups to meet the prescribed (e.g., 45 minute) requirement for bringing all turbine units to full load.
  • the Diagnostic Operations Center's remote startup capability allows Westinghouse to provide 24- hour coverage and 45-minute availability of the plant's full output to meet the local community's variable load demands, although the plant is not staffed 24 hours a day.
  • the Diagnostic Operations Center's remote startup capability enables Westinghouse to receive immediate notification of any event that might prevent the plant from responding to a dispatch call, and to review combustion turbine operating data on-line to verify operating parameters and equipment status.
  • the visible screen is the startup screen for the current unit and twenty-two other screens are not visible.
  • the operator may be distracted from watching the screens for the other units. If a malfunction occurs, the operator may be unaware of it.
  • the operator When aware of a problem, the operator must rely on experience to know which screen will best show the most important and useful information. Lack of information about a malfunction can have serious consequences. For example, lubricating oil * may be lost, a blade may be lost, a combustor basket may be burned, a transition tube may collapse, or the temperature of a rotor cavity may become too high as a consequence of the operator being overwhelmed by the plethora of information available. Therefore, it is extremely important to present the operator the information most useful to him for dealing with any problems that might arise, and to do so immediately.
  • the present invention provides a diagnostic advisor that performs two main functions — diagnostic and control.
  • the diagnostic advisor provides a means for helping the operator quickly take appropriate action through startup, operation, and shutdown.
  • the diagnostic advisor provides a convenient and efficient interface between the operator and the system.
  • the diagnostic advisor immediately displays a malfunction icon on whatever screen is currently being displayed.
  • the icon which is coded to identify the unit or system involved, alerts the operator (for example, by blinking and/or by employing a color code) that a malfunction has occurred or is immanent.
  • an expert system automatically processes monitored information and compiles a diagnostic analysis and a list of one or more recommended options.
  • the diagnostic advisor allows the operator to view a list of probable diagnoses (which is also a menu to a best monitoring information screen for each diagnosis) , to view a recommended information screen that best shows the problem variables identified by the diagnostic advisor, or to continue viewing the current screen.
  • the control function of the diagnostic advisor allows the operator to select for viewing, at any time, a recommendation screen, an option menu, the previous screen viewed, or a diagnostic summary screen.
  • the present invention provides a system for alerting the operator to a malfunction immediately.
  • the inventive system immediately informs the operator what and where the problem is and how urgent it is.
  • the invention also makes an expert system available to advise the operator of a list of one or more best action options.
  • the invention provides a way of giving an experienced operator immediate, expert corroboration, which allows the operator to act more quickly.
  • the present invention also provides a continuous training tool, since the expert system feature of the diagnostic advisor continuously teaches the operator or user, which keeps even experienced operators well-trained.
  • the invention also provides a means for improving plant availability, and saving costs in contractual failure-to- startup penalty fees. (For example, for peaking units, the penalty can be $15,000 per startup time period failure). Moreover, the present invention provides a means for saving costs in operation damage, including repair expenses and costs associated with the loss of a unit for down time. (For example, opening and closing a unit for repair can cost approximately $1,000,000).
  • Figure 1 is a block diagram of one preferred embodiment of the present invention.
  • FIGS depict various screen displays provided by the system.
  • Figure 3 is a schematic diagram of a diagnostic advisor in accordance with the present invention.
  • Figure 4 is a depiction of a malfunction icon in accordance with the present invention.
  • Figure 5 is a depiction of a diagnostic summary screen in accordance with the present invention. DETAILED DESCRIPTION OF PREFEF ⁇ .ED EMBODIMENTS
  • FIG. 1 schematically depicts one preferred embodiment of a combustion turbine monitoring and control system in accordance with the present invention.
  • the system comprises a plurality of generators 10 and associated combustion turbines 12.
  • the generators and turbines are respectively connected to data links 14, 16 coupled to a data highway 18.
  • the data highway 18 provides access to a variety of monitored parameters associated with the generators and turbines from a control room 20.
  • the control room houses a computer/console 22, which is coupled to a modem 24.
  • the modem 24 is coupled to a phone line 26, which in turn is coupled to a modem 28 and computer/console 30 at a remote location.
  • a software- implemented diagnostic advisor 40 manages the presentation of information and screen displays to the operator viewing the remote console 30.
  • Figure 2A depicts an exemplary startup screen.
  • this screen is a "Unit No. 1 — Selection Screen.”
  • this screen includes a master run field, a speed control field, a temperature control field, a power factor control field, a water injection control field, two breaker control fields, and so on.
  • These various fields provide an interface to the operator for use in controlling various operations of the combustion turbine unit in question, which in this case is Unit No. 1.
  • the meanings of the various terms presented in this screen display and the other screen displays discussed below are not described in detail in this specification, since such meanings will be apparent to those skilled in the art.
  • Figure 2B depicts a "Combustion Turbine Longitudinal" screen for combustion turbine unit No. l. As shown, this screen depicts a variety of information. For example, the displayed information relates to inlet air temperature and pressure; air flow velocity; blade valves; blade path temperatures; exhaust gas temperature, and so on.
  • Figure 2C depicts a "Trip Screen" providing information regarding a number of breakers associated with combustion turbine unit No. 2.
  • Figure 2D depicts a "Fuel Oil Supply System” screen providing information regarding the fuel oil supply system of combustion turbine unit No. 1. It should be noted in connection with this screen and the other screens that there will often be overlap with respect to the subsystem-related information provided by the various screens. For example, the "fuel oil supply system” screen and a number of other screens display information regarding blade path temperature.
  • Figure 2E depicts a "Gas Fuel System” screen displaying information regarding the gas fuel system for combustion turbine unit No. 2.
  • Figure 2F depicts a "Lube Oil System” screen.
  • Figure 2G depicts a "Hot Gas Path" screen.
  • Figure 2H depicts an "Overall-Start to Synchronization” screen.
  • Figure 21 depicts a "Turbine Functions” screen.
  • Figure 2J depicts a "Combustion Cycle-Power Generation Mode" screen.
  • Figure 2K depicts a "Overall - 89% speed to full power” screen.
  • Figure 2L depicts a "Generator Jacking/Lube Oil
  • Figure 2M depicts a "BOP Protective Relay Alarms" screen.
  • Figure 2N depicts a "AUX Power Overview” screen.
  • Figure 20 depicts a "Transformer Alarms” screen.
  • Figure 2P depicts a "Remote Operation Overview" screen.
  • Figure 2Q depicts a "13.8 KV System Overview” screen.
  • Figure 2R depicts a "Fuel Forwarding Overview” screen.
  • Figure 2S depicts a "Water Injection System" screen.
  • the present invention provides a computer-implemented process for coordinating and managing the presentation of information to the operator so that he or she will be able to most effectively use the information available.
  • Figure 3 schematically depicts the features of the diagnostic advisor software in accordance with the present invention.
  • the diagnostic advisor 40 comprises a diagnostic component and a control component.
  • the diagnostic component includes a component 42 for displaying a malfunction icon (see Figure 4); an expert system component 44 for analyzing the monitored information and providing a diagnosis or a list of possible diagnoses of any malfunctions that arise; a component 46 for alerting the operator of any problems or malfunctions; and a component 48 for advising the operator of one or more best action options.
  • the control component includes an operator interface 50 for switching screens and selecting options.
  • one embodiment of the present invention provides a malfunction icon 60 whenever a malfunction is detected.
  • the malfunction icon 60 is displayed on the operator's console along with whatever screen display is currently being viewed.
  • the malfunction icon 60 includes a plurality of fields, including a first field 62, a second field 64, a third field 66, and a fourth field 68.
  • a central region 70 the unit number or some other identification of the combustion turbine unit in question is displayed.
  • the first field 62 provides a means whereby the operator may instruct the system to display the newest diagnosis screen.
  • the second field 64 provides a means whereby the operator may instruct the system to display a diagnostic summary screen ( Figure 5) .
  • the third field 66 provides a means whereby the operator may instruct the system to display a description of the problem or problems detected and a recommendation as to the appropriate action for the operator to take.
  • the fourth field 68 allows the operator to instruct the system to display, or go back to, an original screen, which may be any pre-specified screen in a series of screen displays.
  • the system will not only display a description of the detected problem and the appropriate action to take in response thereto, but will also display a description of what will happen if the recommended action is not taken.
  • Figure 5 depicts an exemplary diagnostic summary screen 80.
  • the diagnostic summary screen will preferably include a first field 82 for displaying the identification of the unit number in question.
  • the diagnostic summary screen preferably will include another field 84 for displaying a confidence factor for the respective diagnoses, which are displayed in order of importance and/or color coded in a third field 86.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

Conseiller en diagnostics assurant deux fonctions essentielles, de diagnostic et de commande. En matière de diagnostic, le conseiller aide l'opérateur à prendre rapidement les mesures appropriées en démarrant, exploitant ou arrêtant à distance une génératrice. En matière de commande, le conseiller constitue une interface efficace entre l'opérateur et le système. Lorsqu'une défaillance est détectée le conseiller affiche immédiatement une icône signalant à l'opérateur sur tout visuel en fonctionnement que la défaillance a eu lieu ou est imminente. Un système expert traite automatiquement les informations de suivi, effectue une analyse diagnostique et produit une liste d'une ou plusieurs des options recommandées. Le conseiller permet à l'opérateur de choisir entre une liste des diagnostics probables, un écran d'informations recommandées mettant parfaitement en évidence les variables des problèmes identifiées par le conseiller, ou l'écran en cours d'utilisation. La fonction de commande permet pour sa part à l'opérateur de choisir à tout moment entre un écran de recommandations, un menu d'options, l'écran précédent ou un écran synoptique.
PCT/US1995/010998 1994-09-08 1995-08-29 Conseiller en diagnostics pour l'exploitation de turbines a combustion WO1996007958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30330994A 1994-09-08 1994-09-08
US08/303,309 1994-09-08

Publications (1)

Publication Number Publication Date
WO1996007958A1 true WO1996007958A1 (fr) 1996-03-14

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PCT/US1995/010998 WO1996007958A1 (fr) 1994-09-08 1995-08-29 Conseiller en diagnostics pour l'exploitation de turbines a combustion

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WO (1) WO1996007958A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0813129A3 (fr) * 1996-06-14 1998-03-18 The Foxboro Company Interface utilisateur graphique à clavier et signalisation
EP0871034A3 (fr) * 1997-04-10 1999-09-22 Hitachi, Ltd. Appareil d'analyses automatisé
WO2001078164A3 (fr) * 2000-04-11 2002-12-19 Rech 2000 Inc Procede et appareil destines a l'acquisition, a la surveillance, a l'affichage et au diagnostic de parametres de fonctionnement d'electrolyseurs
US6549824B1 (en) * 1998-05-12 2003-04-15 Mitsubishi Denki Kabushiki Kaisha Numerically controlling device for electrical discharge machine
WO2004049083A3 (fr) * 2002-11-22 2004-11-25 Siemens Ag Procede pour afficher des donnees soumises a etalonnage
EP1215552A3 (fr) * 2000-12-07 2005-04-20 Fanuc Ltd Dispositif d'affichage de données de fonctionnenment pour un robot
US6909989B2 (en) * 2003-02-24 2005-06-21 Siemens Westinghouse Power Corporation Method and system for establishing operational stability prior to determining temperature correction factors for a generator
US6957481B1 (en) 1998-03-09 2005-10-25 Gemplus Method for making contactless cards
WO2006068658A3 (fr) * 2004-11-02 2006-08-10 Snap On Tools Corp Procede et systeme permettant d'ameliorer les aides au diagnostic de machines par retroaction statistique
US8793604B2 (en) 2004-11-16 2014-07-29 Open Text S.A. Spatially driven content presentation in a cellular environment
US9304837B2 (en) 2004-11-16 2016-04-05 Open Text S.A. Cellular user interface
EP2094426B1 (fr) 2006-12-20 2016-11-16 Lincoln Global, Inc. Séquenceur de travaux de soudage
EP3699710A1 (fr) * 2019-02-20 2020-08-26 Siemens Aktiengesellschaft Procédé et dispositif de fourniture structuré des informations d'un système de production et / ou d'un composant de système de production

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0528396A2 (fr) * 1991-08-21 1993-02-24 International Business Machines Corporation Procédé de commande d'un processus industriel

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EP0528396A2 (fr) * 1991-08-21 1993-02-24 International Business Machines Corporation Procédé de commande d'un processus industriel

Non-Patent Citations (3)

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ADAM W. ET AL: "MODELLBASIERTES MULTIMEDIA-FERNDIAGNOSESYSTEM", ZWF ZEITSCHRIFT FUR WIRTSCHAFTLICHE FERTIGUNG UND AUTOMATISIERUNG, vol. 87, no. 12, 1 December 1992 (1992-12-01), pages 659 - 663, XP000327911 *
KIRATLI G.: "EXPERTENSYSTEME FÜR DIE FERTIGUNGSTECHNIK", TECHNISCHE RUNDSCHAU, vol. 80, no. 11, 11 March 1988 (1988-03-11), pages 58 - 63, 65, XP000022343 *
NAOKI URA ET AL: "REMOTE MAINTENANCE FUNCTION FOR DISTRIBUTED CONTROL SYSTEM", ADVANCES IN INSTRUMENTATION AND CONTROL, vol. 48, no. PART 03, 1 January 1993 (1993-01-01), pages 1557 - 1564, XP000428426 *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6737966B1 (en) 1996-06-14 2004-05-18 The Foxboro Company Keypad annunciator graphical user interface
US5984502A (en) * 1996-06-14 1999-11-16 The Foxboro Company Keypad annunciator graphical user interface
EP0813129A3 (fr) * 1996-06-14 1998-03-18 The Foxboro Company Interface utilisateur graphique à clavier et signalisation
EP0871034A3 (fr) * 1997-04-10 1999-09-22 Hitachi, Ltd. Appareil d'analyses automatisé
US6957481B1 (en) 1998-03-09 2005-10-25 Gemplus Method for making contactless cards
US6549824B1 (en) * 1998-05-12 2003-04-15 Mitsubishi Denki Kabushiki Kaisha Numerically controlling device for electrical discharge machine
US6591199B2 (en) 2000-04-11 2003-07-08 Recherche 2000 Inc. Method and system for acquisition, monitoring, display and diagnosis of operational parameters of electrolyzers
WO2001078164A3 (fr) * 2000-04-11 2002-12-19 Rech 2000 Inc Procede et appareil destines a l'acquisition, a la surveillance, a l'affichage et au diagnostic de parametres de fonctionnement d'electrolyseurs
EP1215552A3 (fr) * 2000-12-07 2005-04-20 Fanuc Ltd Dispositif d'affichage de données de fonctionnenment pour un robot
CN100353272C (zh) * 2002-11-22 2007-12-05 西门子公司 用于显示需校准的数据的方法
US7298369B2 (en) 2002-11-22 2007-11-20 Siemens Aktiengesellschaft Method for displaying calibration-required data
WO2004049083A3 (fr) * 2002-11-22 2004-11-25 Siemens Ag Procede pour afficher des donnees soumises a etalonnage
US6909989B2 (en) * 2003-02-24 2005-06-21 Siemens Westinghouse Power Corporation Method and system for establishing operational stability prior to determining temperature correction factors for a generator
WO2006068658A3 (fr) * 2004-11-02 2006-08-10 Snap On Tools Corp Procede et systeme permettant d'ameliorer les aides au diagnostic de machines par retroaction statistique
US8793604B2 (en) 2004-11-16 2014-07-29 Open Text S.A. Spatially driven content presentation in a cellular environment
US9304837B2 (en) 2004-11-16 2016-04-05 Open Text S.A. Cellular user interface
US10055428B2 (en) 2004-11-16 2018-08-21 Open Text Sa Ulc Spatially driven content presentation in a cellular environment
US10222943B2 (en) 2004-11-16 2019-03-05 Open Text Sa Ulc Cellular user interface
EP2094426B1 (fr) 2006-12-20 2016-11-16 Lincoln Global, Inc. Séquenceur de travaux de soudage
EP3699710A1 (fr) * 2019-02-20 2020-08-26 Siemens Aktiengesellschaft Procédé et dispositif de fourniture structuré des informations d'un système de production et / ou d'un composant de système de production

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