WO2005033814A1 - Method and device for controlling an industrial plant - Google Patents

Method and device for controlling an industrial plant Download PDF

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Publication number
WO2005033814A1
WO2005033814A1 PCT/EP2004/010669 EP2004010669W WO2005033814A1 WO 2005033814 A1 WO2005033814 A1 WO 2005033814A1 EP 2004010669 W EP2004010669 W EP 2004010669W WO 2005033814 A1 WO2005033814 A1 WO 2005033814A1
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Prior art keywords
data
network
control system
central control
data processing
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PCT/EP2004/010669
Other languages
German (de)
French (fr)
Inventor
Andreas Dennewitz
Jens Reich
Original Assignee
Steag Encotec Gmbh
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Publication of WO2005033814A1 publication Critical patent/WO2005033814A1/en

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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]
    • G05B19/4185—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 the network communication
    • G05B19/41855—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 the network communication by local area network [LAN], network structure
    • 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
    • G05B2219/31088—Network communication between supervisor and cell, machine group
    • 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
    • G05B2219/31124—Interface between communication network and process control, store, exchange data
    • 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
    • G05B2219/31162—Wireless lan
    • 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
    • G05B2219/31206—Exchange of parameters, data, programs between two station, station and central or host or remote
    • 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 invention is suitable for controlling any complex industrial plants, for example industrial furnace plants.
  • preferred applications are power plants.
  • the following description therefore mainly refers to power plants.
  • the power plant process is monitored and controlled by a variety of measurements such as temperature, pressure, throughput, etc.
  • the measured values are via a central processing unit (CPU) unit (CPU) unit (CPU) unit (CPU) unit (CPU) unit (CPU) unit (CPU) of power plants.
  • the power plant process is monitored and controlled by a variety of measurements such as temperature, pressure, throughput, etc.
  • the measured values are via a central processing unit.
  • Control system recorded and processed.
  • local measuring indicators are installed at many points in the system, so that the power plant personnel can read the respective measured values directly on site. If there are malfunctions, only by observing on site. So far, the power plant personnel have contacted the control center of the control system by telephone and transmitted the information required to remedy the malfunctions.
  • the visual observations and, if necessary, the readings on site serve as the basis. The same procedure is followed for a repair or for the commissioning of a functional unit or an aggregate of the industrial plant.
  • the invention has for its object to expand the basis for the observation-dependent control of the industrial plant.
  • the invention provides a method for controlling an industrial plant which has a plurality of aggregates which are at least partially combined into functional units, and a central control system which is used to transmit measurement and control data with the aggregates and, if appropriate, the functional units is connected, wherein - A network is created that is connected to the central control system for the transmission of measurement and control data and has a plurality of interfaces that are distributed over the industrial plant, - A mobile data processing device is coupled to one of the interfaces and - The data processing device transfers data taken from the central control system and processed. In this way, the power plant personnel on site are given the opportunity to access the entire database of the central control system, including the data from distant measuring points and the data derived from it.
  • the power plant personnel when setting a burner, it can be useful to receive information about the operating state of the turbine.
  • the power plant personnel is therefore not dependent on the directly readable measurement data. Rather, it is possible to call up this data from the control center of the central control system. Local ads can thus be saved. It is essential that the power plant personnel can get a complete overview of the status of the industrial plant at every interface of the network. This is not only important for repairs and commissioning, but also serves to create diagnoses in order to determine the causes of faults and to remedy the latter.
  • the interfaces are preferably arranged on all traffic routes of the industrial plant and also wherever certain process steps and functions require visual observation and control.
  • a notebook, a PDA or a tablet PC are the most suitable mobile data processing devices.
  • the data processing device can be coupled mechanically to the respective interface of the network. This is particularly advantageous for data security reasons.
  • wireless connections are also conceivable, for example via a short-range radio link (Bluetooth) via an infrared connection or via a wireless LAN.
  • Bluetooth short-range radio link
  • the data processing device will only be allowed access to the entire data of the central control system in exceptional cases. As a rule, limited access is sufficient to complete a special task. It is therefore advantageous to authorize the data processing device to access the data only from one or more selected measuring points.
  • the limitation can lie in authorizing the data processing device for coupling to only one or more selected interfaces. As long as the data processing device only takes data from the central control system via the network, it is sufficient to equip the data processing device with a readout function. However, in an essential further development of the invention it is possible to authorize the data processing device to supply control data for controlling one or more selected functional units or units to the central control system. This significantly reduces the coordination effort between the power plant personnel on site and the control center of the central control system, with the result that the processes are simplified.
  • the data processing device forms a secondary control center, so to speak, which, however, only access the functional unit to be controlled or the unit to be controlled via the central control center can. Access to all functional units and units of the industrial plant will hardly be necessary.
  • the central control system It is essential that the central control system always keeps the lead. It also controls the allocation and authorization of the data processing device, which can preferably also be time-bound. For example, the power plant personnel receive data processing equipment, the software of which incorporates the necessary access restrictions. In addition or in addition, there is the option of setting the restrictions and releases at the control center of the central control system. The central control center can tighten or expand the respective restrictions at any time.
  • the data within the network are advantageously encrypted, for example using standard encryption, such as IEEE standard 802.11. This creates essential security requirements for the use of a wireless network.
  • the authorization restrictions also represent measures for data backup. Wired networks and fiber optic transmissions can be used equally.
  • the invention also provides a device for controlling an industrial system, which has a plurality of aggregates, preferably at least partially combined into functional units, with a central control system that is used to transmit measurement and control data with the aggregates and, if necessary, is connected to the functional units, - a network connected to the central control system for transmitting measurement and control data, the Network has a plurality of interfaces, which are distributed over the industrial plants, and - at least one mobile data processing device that can be coupled to the interfaces of the network.
  • the network is preferably designed as a wireless network.
  • the device according to FIG. 1 has a control center 1 of a central control system, which is connected to the functional units and units of an industrial plant, in the present case a power plant, via lines (not shown).
  • the control station 1 receives measurement data via these lines and supplies control data.
  • the central control station 1 is connected to a network 2 which has a plurality of interfaces 3.
  • the interfaces 3 are distributed over the power plant and at least arranged where certain processes or functions require visual monitoring or control.
  • a data processing device in the present case a notebook 4, can be connected to the interfaces 3. Via the network 2, the power plant personnel have on-site access to data of the central control system, including data that are supplied by function units or units located at a remote location.
  • the notebook 4 can supply control data to the control center 1 of the central control system, which this directly to the respective functional unit or the respective Passes on aggregate. This simplifies the control processes.
  • the authorization of the notebook 4 is limited to certain interfaces 3, to certain data and data records of the central control center 1 and to the control of certain functional units or units.
  • the authorization is also limited in time.
  • the central control station 1 can intervene in the function of the notebook 4 at any time.

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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)
  • Selective Calling Equipment (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

According to the invention, the industrial plant comprises a plurality of units that are at least partially combined to form functional units, in addition to a control station (1) of a central instrumentation and control system, which is connected to the functional units and the units in order to transmit measurement and control data. In addition, the plant is provided with a network (2) for transmitting measurement and control data, said network comprising a plurality of interfaces (2), which are distributed throughout the industrial plant and being connected to the central control station (1). Data processing devices (4) can be coupled to the interfaces (3) in order to retrieve measurement data from the central instrumentation and control system and to deliver control data to said system. The personnel thus has the option of linking visual observations carried out in situ to measurement data of remote plant sections and of delivering corresponding analyses and control commands to the central control and instrumentation system.

Description

Verfahren und Einrichtung zum Steuern einer Industrieanlage Method and device for controlling an industrial plant
Die Erfindung eignet sich zum Steuern beliebiger komplexer Industrieanlagen, beispielsweise von Industrieofenanla- gen. Bevorzugtes Anwendungsgebiet allerdings sind Kraftwerke. Die folgende Beschreibung bezieht sich daher vorwiegend auf Kraftwerke. Der Kraftwerksprozeß wird durch eine Vielzahl von Messungen, wie Temperatur, Druck, Durchsatz etc. überwacht und gesteuert. Die Meßwerte werden über ein zentralesThe invention is suitable for controlling any complex industrial plants, for example industrial furnace plants. However, preferred applications are power plants. The following description therefore mainly refers to power plants. The power plant process is monitored and controlled by a variety of measurements such as temperature, pressure, throughput, etc. The measured values are via a central
Leittechniksystem erfaßt und verarbeitet. Darüber hinaus sind in der Anlage an vielen Stellen örtliche Meßanzeiger installiert, so daß das Kraftwerkspersonal vor Ort die jeweiligen Meßwerte direkt ablesen kann. Kommt es zu Störungen, die lediglich durch Beobachtung vor Ort. erfaßt werden können, so setzt sich bisher das Kraftwerkspersonal telefonisch mit dem Leitstand des Leittechniksystems in Verbindung und übermittelt die erforderlichen Informationen zur Behebung der Störungen. Als Basis dienen die visuellen Beobachtungen und ggf. die vor Ort ablesbaren Meßwerte. In gleicher Weise wird bei einer Reparatur oder bei der Inbetriebnahme einer Funktionseinheit oder eines Aggregats der Industrieanlage vorgegangen. Der Erfindung liegt die Aufgabe zugrunde, die Basis für die beobachtungsabhängige Steuerung der Industrieanlage zu erweitern. Zur Lösung dieser Aufgabe schafft die Erfindung ein Verfahren zum Steuern einer Industrieanlage, die eine Mehrzahl von mindestens zum Teil zu Funktionseinheiten zusammengefaß- ten Aggregaten sowie ein zentrales Leittechniksystem aufweist, welches zum Übertragen von Meß- und Steuerungsdaten mit den Aggregaten und ggf . den Funktionseinheiten verbunden ist, wobei - ein Netz erstellt wird, das zum Übertragen von Meß- und Steuerungsdaten mit dem zentralen Leittechniksystem verbunden ist und eine Mehrzahl von Schnittstellen aufweist, die über die Industrieanlage verteilt werden, - eine mobile Datenverarbeitungseinrichtung an eine der Schnittstellen angekoppelt wird und - die Datenverarbeitungseinrichtung Daten aus dem zentralen Leittechniksystem entnimmt und verarbeitet. Auf diese Weise erhält das Kraftwerkspersonal vor Ort die Möglichkeit, auf den gesamten Datenbestand des zentralen Leittechniksystems zuzugreifen, also auch auf die Daten weit entfernter Meßstellen sowie auf die hiervon abgeleiteten Daten. Beispielsweise kann es bei der Einstellung eines Brenners sinnvoll sein, Informationen über den Betriebszustand der Turbine zu erhalten. Das Kraftwerkspersonal ist also nicht auf die direkt ablesbaren Meßdaten angewiesen. Vielmehr besteht die Möglichkeit, diese Daten vom Leitstand des zentralen Leittechniksystems abzurufen. Es können also örtliche Anzeigen eingespart werden. Von wesentlicher Bedeutung ist, daß sich das Kraftwerkspersonal an jeder Schnittstelle des Netzes einen Gesamtüberblick über den Zustand der Industrieanlage verschaffen kann. Dies ist nicht nur bei Reparaturen und Inbetriebnahmen von Bedeutung, sondern dient auch zur Erstellung von Diagnosen, um die Ursachen von Störungen zu erfassen und letztere zu beheben. Die Schnittstellen werden vorzugsweise an sämtlichen Verkehrswegen der Industrieanlage angeordnet und ferner überall dort, wo bestimmte Prozeßschritte und Funktionen der visuellen Beobachtung und Kontrolle bedürfen. Als mobile Datenverarbeitungseinrichtung kommen vor allen Dingen ein Notebook, ein PDA oder ein Tablet-PC in Frage. Das Ankoppeln der Datenverarbeitungseinrichtung an die jeweilige Schnittstelle des Netzes kann mechanisch erfolgen. Dies ist aus Gründen der Datensicherheit besonders vorteilhaft. Allerdings sind auch drahtlose Ankopplungen denkbar, beispielsweise über eine Funkverbindung kurzer Reichweite (Bluetooth) über eine Infrarot-Ankopplung oder über ein Wireless-LAN. Einen Zugriff auf den gesamten Datenbestand des zentralen Leittechniksystems wird man der Datenverarbeitungseinrichtung nur in Ausnahmefällen gestatten. In aller Regel genügt für die Erledigung einer speziellen Aufgabe ein begrenzter Zugriff. Daher ist es vorteilhaft, die Datenverarbeitungseinrichtung zum Zugriff auf die Daten lediglich einer oder mehrerer ausgewählter Meßstellen zu autorisieren. Eine weitereControl system recorded and processed. In addition, local measuring indicators are installed at many points in the system, so that the power plant personnel can read the respective measured values directly on site. If there are malfunctions, only by observing on site. So far, the power plant personnel have contacted the control center of the control system by telephone and transmitted the information required to remedy the malfunctions. The visual observations and, if necessary, the readings on site serve as the basis. The same procedure is followed for a repair or for the commissioning of a functional unit or an aggregate of the industrial plant. The invention has for its object to expand the basis for the observation-dependent control of the industrial plant. To achieve this object, the invention provides a method for controlling an industrial plant which has a plurality of aggregates which are at least partially combined into functional units, and a central control system which is used to transmit measurement and control data with the aggregates and, if appropriate, the functional units is connected, wherein - A network is created that is connected to the central control system for the transmission of measurement and control data and has a plurality of interfaces that are distributed over the industrial plant, - A mobile data processing device is coupled to one of the interfaces and - The data processing device transfers data taken from the central control system and processed. In this way, the power plant personnel on site are given the opportunity to access the entire database of the central control system, including the data from distant measuring points and the data derived from it. For example, when setting a burner, it can be useful to receive information about the operating state of the turbine. The power plant personnel is therefore not dependent on the directly readable measurement data. Rather, it is possible to call up this data from the control center of the central control system. Local ads can thus be saved. It is essential that the power plant personnel can get a complete overview of the status of the industrial plant at every interface of the network. This is not only important for repairs and commissioning, but also serves to create diagnoses in order to determine the causes of faults and to remedy the latter. The interfaces are preferably arranged on all traffic routes of the industrial plant and also wherever certain process steps and functions require visual observation and control. A notebook, a PDA or a tablet PC are the most suitable mobile data processing devices. The data processing device can be coupled mechanically to the respective interface of the network. This is particularly advantageous for data security reasons. However, wireless connections are also conceivable, for example via a short-range radio link (Bluetooth) via an infrared connection or via a wireless LAN. The data processing device will only be allowed access to the entire data of the central control system in exceptional cases. As a rule, limited access is sufficient to complete a special task. It is therefore advantageous to authorize the data processing device to access the data only from one or more selected measuring points. Another
Begrenzung kann darin liegen, die Datenverarbeitungseinrichtung zum Ankoppeln an lediglich eine oder mehrere ausgewählte Schnittstellen zu autorisieren. Solange die Datenverarbeitungseinrichtung über das Netz Daten aus dem zentralen Leittechniksystem lediglich entnimmt, genügt es, die Datenverarbeitungseinrichtung mit einer Ausleεefunktion auszustatten. Allerdings besteht in wesentlicher Weiterbildung der Erfindung die Möglichkeit, die Datenverarbeitungseinrichtung dazu zu autorisieren, Steuerungsdaten zum Steuern einer oder mehrerer ausgewählter Funktionseinheiten oder Aggregate an das zentrale Leittechniksystem zu liefern. Dies reduziert erheblich den Abstimmungsaufwand zwischen dem Kraftwerkspersonal vor Ort und dem Leitstand des zentralen Leittechniksystems, mit dem Ergebnis, daß die Abläufe vereinfacht werden. Die Datenverarbeitungseinrichtung bildet sozusagen einen Sekundär-Leitstand, der allerdings lediglich über den zentralen Leitstand auf die zu steuernde Funktionseinheit oder das zu steuernde Aggregat zugreifen kann. Ein Zugriff auf sämtliche Funktionseinheiten und Aggregate der Industrieanlage wird kaum erforderlich sein. Wesentlich ist, daß das zentrale Leittechniksystem immer die Führung behält . Er steuert auch die Vergabe und die Autorisierung der Datenverarbeitungseinrichtung, die vorzugsweise auch zeitgebunden sein können. Beispielsweise erhält das Kraftwerkspersonal eine Datenverarbeitungseinrichtungen, in deren Software die erforderlichen Zugriffsbeschränkungen eingearbeitet sind. Daneben oder zusätzlich dazu besteht die Möglichkeit, die Beschränkungen und Freigaben auch am Leitstand des zentralen Leittechniksystems einzustellen. Der zentrale Leitstand kann die jeweiligen Beschränkungen jederzeit verschärfen oder erweitern. Vorteilhafterweise werden die Daten innerhalb des Netzes verschlüsselt, beispielsweise über eine Standard-Verschlüsselung, wie etwa IEEE-Standard 802.11. Damit werden wesentliche Sicherheitsvoraussetzungen für den Einsatz eines drahtlosen Netzes geschaffen. Hinzu kommen Maßnahmen zum Mi- nimieren der Abstrahlung nach außen sowie zur technischen Abschirmung, beispielsweise über eine entsprechende Funknetzplanung. Auch die Autorisierungsbeschränkungen stellen Maßnahmen zur Datensicherung dar. Drahtgebundene Netze und Glasfaserübertragungen sind gleichermaßen einsetzbar. Zur Lösung der gestellten Aufgabe schafft die Erfindung ferner eine Einrichtung zum Steuern einer Industrieanlage, die eine Mehrzahl von vorzugsweise mindestens zum Teil zu Funktionseinheiten zusammengefaßten Aggregaten aufweist, mit - einem zentralen Leittechniksystem, das zum Übertragen von Meß- und Steuerungsdaten mit den Aggregaten und ggf . mit den Funktionseinheiten verbunden ist, - einem mit dem zentralen Leittechniksystem verbundenen Netz zum Übertragen von Meß- und Steuerungsdaten, wobei das Netz eine Mehrzahl von Schnittstellen aufweist, die über die Industrieanlagen verteilt sind, und - mindestens einer mobilen Datenverarbeitungseinrichtung, die an die Schnittstellen des Netzes ankoppelbar ist. Das Netz ist, wie erwähnt, vorzugsweise als drahtloses Netz ausgebildet. Die Erfindung wird im folgenden anhand eines bevorzugten Ausführungsbeispiels im Zusammenhang mit der beiliegenden Zeichnung näher erläutert . Die Zeichnung zeigt in: Figur 1 in schematischer Darstellung den Aufbau einer erfindungsgemäßen Steuereinrichtung. Die Einrichtung nach Figur 1 weist einen Leitstand 1 eines zentralen Leittechniksystems auf, der über nicht dargestellte Leitungen mit den Funktionseinheiten und Aggregaten einer Industrieanlage, im vorliegenden Falle eines Kraftwerks verbunden ist . Über diese Leitungen erhält der Leitstand 1 Meßdaten und liefert Steuerungsdaten. Außerdem ist der zentrale Leitstand 1 mit einem Netz 2 verbunden, welches eine Mehrzahl von Schnittstellen 3 aufweist. Die Schnittstellen 3 sind über das Kraftwerk verteilt und zumindest dort angeordnet, wo bestimmte Prozesse oder Funktionen einer visuellen Überwachung oder Kontrolle bedürfen. An die Schnittstellen 3 ist eine Datenverarbeitungseinrichtung, im vorliegenden Falle ein Notebook 4, anschließbar. Über das Netz 2 hat das Kraftwerkspersonal vor Ort Zugriff auf Daten des zentralen Leittechniksystems, und zwar auch auf solche Daten, die von örtlich entfernten Funktionseinheiten oder Aggregaten geliefert werden. Dies erweitert die Basis für die Erstellung von Diagnosen sowie für die Durchführung von Reparaturen und Inbetriebnahmen. Daneben kann das Notebook 4 Steuerungsdaten an den Leitstand 1 des zentralen Leittechniksystems liefern, die dieser direkt an die jeweilige Funktionseinheit bzw. das jeweilige Aggregat weitergibt. Dadurch vereinfachen sich die Steuerungsabläufe . Die Autorisierung des Notebooks 4 beschränkt sich auf bestimmte Schnittstellen 3, auf bestimmte Daten und Datensätze des zentralen Leitstands 1 sowie auf die Steuerung bestimmter Funktionseinheiten bzw. Aggregate. Auch ist die Autorisierung zeitlich begrenzt. Der zentrale Leitstand 1 hat jederzeit die Möglichkeit beliebiger Eingriffe in die Funktion des Notebooks 4. The limitation can lie in authorizing the data processing device for coupling to only one or more selected interfaces. As long as the data processing device only takes data from the central control system via the network, it is sufficient to equip the data processing device with a readout function. However, in an essential further development of the invention it is possible to authorize the data processing device to supply control data for controlling one or more selected functional units or units to the central control system. This significantly reduces the coordination effort between the power plant personnel on site and the control center of the central control system, with the result that the processes are simplified. The data processing device forms a secondary control center, so to speak, which, however, only access the functional unit to be controlled or the unit to be controlled via the central control center can. Access to all functional units and units of the industrial plant will hardly be necessary. It is essential that the central control system always keeps the lead. It also controls the allocation and authorization of the data processing device, which can preferably also be time-bound. For example, the power plant personnel receive data processing equipment, the software of which incorporates the necessary access restrictions. In addition or in addition, there is the option of setting the restrictions and releases at the control center of the central control system. The central control center can tighten or expand the respective restrictions at any time. The data within the network are advantageously encrypted, for example using standard encryption, such as IEEE standard 802.11. This creates essential security requirements for the use of a wireless network. In addition, there are measures to minimize radiation to the outside as well as for technical shielding, for example by means of appropriate radio network planning. The authorization restrictions also represent measures for data backup. Wired networks and fiber optic transmissions can be used equally. To achieve the stated object, the invention also provides a device for controlling an industrial system, which has a plurality of aggregates, preferably at least partially combined into functional units, with a central control system that is used to transmit measurement and control data with the aggregates and, if necessary, is connected to the functional units, - a network connected to the central control system for transmitting measurement and control data, the Network has a plurality of interfaces, which are distributed over the industrial plants, and - at least one mobile data processing device that can be coupled to the interfaces of the network. As mentioned, the network is preferably designed as a wireless network. The invention is explained below with reference to a preferred embodiment in connection with the accompanying drawings. The drawing shows in: FIG. 1 a schematic representation of the structure of a control device according to the invention. The device according to FIG. 1 has a control center 1 of a central control system, which is connected to the functional units and units of an industrial plant, in the present case a power plant, via lines (not shown). The control station 1 receives measurement data via these lines and supplies control data. In addition, the central control station 1 is connected to a network 2 which has a plurality of interfaces 3. The interfaces 3 are distributed over the power plant and at least arranged where certain processes or functions require visual monitoring or control. A data processing device, in the present case a notebook 4, can be connected to the interfaces 3. Via the network 2, the power plant personnel have on-site access to data of the central control system, including data that are supplied by function units or units located at a remote location. This extends the basis for the creation of diagnoses and for carrying out repairs and commissioning. In addition, the notebook 4 can supply control data to the control center 1 of the central control system, which this directly to the respective functional unit or the respective Passes on aggregate. This simplifies the control processes. The authorization of the notebook 4 is limited to certain interfaces 3, to certain data and data records of the central control center 1 and to the control of certain functional units or units. The authorization is also limited in time. The central control station 1 can intervene in the function of the notebook 4 at any time.

Claims

Patentansprüche claims
1. Verfahren zum Steuern einer Industrieanlage, die eine Mehrzahl von vorzugsweise mindestens zum Teil zu Furiktions- einheiten zusammengefaßten Aggregaten sowie ein zentrales Leittechniksystem aufweist, welches zum Übertragen von Meß- und Steuerungsdaten mit den Aggregaten und ggf. mit den Funktionseinheiten verbunden ist, wobei - ein Netz erstellt wird, das zum Übertragen von Meß- und Steuerungsdaten mit dem zentralen Leittechniksystem verbunden ist und eine Mehrzahl von Schnittstellen aufweist, die über die Industrieanlage verteilt werden, - eine mobile Datenverarbeitungseinrichtung an eine der Schnittstellen angekoppelt wird und - die Datenverarbeitungseinrichtung Daten aus dem zentralen Leittechniksystem entnimmt und verarbeitet .1. A method for controlling an industrial plant which has a plurality of aggregates, preferably at least partially combined into furcation units, and a central control system which is connected to the aggregates and, if appropriate, to the functional units for the transmission of measurement and control data, a network is created which is connected to the central control system for the transmission of measurement and control data and has a plurality of interfaces which are distributed over the industrial plant, - a mobile data processing device is coupled to one of the interfaces and - the data processing device data from the takes out and processes the central control system.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Datenverarbeitungseinrichtung zum Zugriff auf die Daten lediglich einer oder mehrerer ausgewählter Meßstellen autorisiert wird.2. The method according to claim 1, characterized in that the data processing device is authorized to access the data only one or more selected measuring points.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Datenverarbeitungseinrichtung zum Ankop- peln an lediglich eine oder mehrere ausgewählte Schnittstellen autorisiert wird.3. The method according to claim 1 or 2, characterized in that the data processing device is authorized for coupling to only one or more selected interfaces.
4. Verfahren nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, daß die Datenverarbeitungseinrichtung dazu autorisiert wird, Steuerungsdaten zum Steuern einer oder mehrerer ausgewählter Funktionseinheiten oder Aggregate an das zentrale Leittechniksystem zu liefern. 4. The method according to any one of claims 1 to 3, characterized in that the data processing device is authorized to supply control data for controlling one or more selected functional units or units to the central control system.
5. Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Autorisierung der Datenverarbeitungseinrichtung zeitgebunden ist. 5. The method according to any one of claims 2 to 4, characterized in that the authorization of the data processing device is time-bound.
6. Verfahren nach einem der Ansprühe 1 bis 5, dadurch gekennzeichnet, daß die Daten innerhalb des Netzes verschlüsselt werden.6. The method according to any one of claims 1 to 5, characterized in that the data are encrypted within the network.
7. Einrichtung zum Steuern einer Industrieanlage, die eine Mehrzahl von vorzugsweise mindestens zum Teil zu Funktionseinheiten zusammengefaßten Aggregaten aufweist, mit - einem zentralen Leittechniksystem (1) , das zum Übertragen von Meß- und Steuerungsdaten mit den Aggregaten und ggf. mit den Funktionseinheiten verbunden ist, - einem mit dem zentralen Leittechniksystem verbundenen Netz (2) zum Übertragen von Meß- und Steuerungsdaten, wobei das Netz (2) eine Mehrzahl von Schnittstellen (3) aufweist, die über die Industrieanlage verteilt sind, und - mindestens einer mobilen Datenverarbeitungseinrichtung (4) , die an die Schnittstellen (3) des Netzes (2) ankoppelbar ist.7. Device for controlling an industrial plant, which has a plurality of aggregates, preferably at least partially combined into functional units, with - a central control system (1) which is connected to the aggregates and, if appropriate, to the functional units for the transmission of measurement and control data , - A network (2) connected to the central control system for transmitting measurement and control data, the network (2) having a plurality of interfaces (3) distributed over the industrial plant, and - at least one mobile data processing device (4 ), which can be coupled to the interfaces (3) of the network (2).
8. Einrichtung nach Anspruch 7, dadurch gekennzeichnet, daß das Netz (2) als drahtloses Netz ausgebildet ist. 8. Device according to claim 7, characterized in that the network (2) is designed as a wireless network.
PCT/EP2004/010669 2003-09-27 2004-09-23 Method and device for controlling an industrial plant WO2005033814A1 (en)

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