EP3045726A1 - Measurement value standardisation - Google Patents

Abstract

The invention relates to a method for controlling and / or monitoring a compressor system comprising a plurality of components, namely one or more compressors (11, 12, 13) and one or more peripheral devices (14 to 21), and a control / monitoring unit (22), wherein the compressors (11, 12, 13) and peripheral devices (14 to 21) are arranged in a particular configuration. The method is characterized that measured values are detected within the compressor installation or the components in a measured value acquisition step, - that in a mapping step before or at the same time or after the measured value acquisition context information is assigned to the one or more measured values in order to standardize the measured values, and - That in a utilization step, the one or more standardized by the context information measured values are taken into account in a control, monitoring, diagnostic or Auswertroutine.

Description

The invention relates to a method for controlling and / or monitoring a compressor system comprising a plurality of components, namely one or more compressors and one or more peripheral devices, and a control / monitoring unit, wherein the compressors and peripheral devices are arranged or interconnected in a specific configuration, according to the features of claim 1 and a compressor system according to claim 16.

Compressor systems are a system of a variety of compressors and peripheral devices of various types coupled together via an air duct network and, when using heat recovery systems, via a water pipe network. In general, compressor systems are designed individually for the local conditions. A general structure for compressor systems does not exist. Therefore, the behavior of a concrete compressor system can only be analyzed and evaluated to a limited extent without knowledge of the structure of the compressor system.

• die Kompressoren und Peripheriegeräte der Kompressoranlage so anzusteuern, dass die benötigte Druckluft mit so wenig elektrischer Energie wie möglich erzeugt und/oder aufbereitet wird,
• die Kompressoren und Peripheriegeräte der Kompressoranlage zu überwachen und ggf. auf Fehler zu reagieren,
  • beispielsweise dadurch, dass fehlerhafte oder ausgefallene Kompressoren und/oder Peripheriegeräte für die Drucklufterzeugung und/oder Druckluftaufbereitung nicht mehr eingesetzt, sondern andere Kompressoren und/oder Peripheriegeräte stattdessen eingesetzt werden und/oder dadurch, dass Fehler oder Ausfälle von Kompressoren und/oder Peripheriegeräten als Störung oder Warnung an Personen oder andere technische Systeme gemeldet werden, beispielsweise per SMS, E-Mail, Netzwerknachricht, Meldefenster auf einem Display, etc.

In the field of compressed air technology, it is possible to equip compressor systems with a control / monitoring unit. The task of the control / monitoring unit can be, for example, cumulative or alternative:

• to control the compressors and peripherals of the compressor system so that the required compressed air is generated and / or processed with as little electrical energy as possible,
• to monitor the compressors and peripherals of the compressor system and, if necessary, to react to errors
  • For example, the fact that incorrect or failed compressors and / or peripherals for compressed air generation and / or compressed air treatment is no longer used, but other compressors and / or peripherals are used instead and / or that errors or failures of compressors and / or peripherals as a fault or warning to persons or other technical systems are reported, for example by SMS, e-mail, network message, message windows on a display, etc.

It may also be the task of the control / monitoring unit to collect measured values accumulating in the compressor system and store them as time courses or timestamps in order to evaluate these measured values later in the control / monitoring unit or also in other technical systems. It can be particularly interesting if a large number of different measured values are collected from within or also outside the compressor system, in order to be able to create analyzes from this and to draw conclusions in the following, in particular by forming correlations, etc.

Conventionally, however, a problem is that although a large number of measured values can often be generated or are already recorded, these measured values are not sufficiently standardized in order to be able to draw valid conclusions from this. In particular, these measured values are not accessible to automatic evaluation / processing.

• Jede Kompressoranlage verfügt über eine individuelle Konfiguration, also eine individuelle Konfiguration der Kompressoren und Peripheriegeräte.
• Darüber hinaus ist die in der Kompressoranlage installierte Sensorik ebenfalls individuell gegeben (sowohl hinsichtlich Menge als auch hinsichtlich Verschaltung) und somit in keinster Weise standardisiert.
• Kompressoren und Peripheriegeräte einer Kompressoranlage stammen üblicherweise von unterschiedlichen Herstellern und verfügen daher über herstellerspezifische (oder auch steuerungshardwarespezifische) Formate für die erfassten Messwerte.
• Selbst Kompressoren oder Peripheriegeräte gleichen Typs stellen mitunter unterschiedliche Messwerte zur Verfügung, beispielsweise da
  • die Kompressoren oder Peripheriegeräte gleichen Typs über unterschiedliche Technologien an die Steuerungs-/Überwachungseinheit angebunden sind (z.B. diskrete Verdrahtung vs. Verwendung eines Bussystems) und sich daher in der Menge der zur Verfügung gestellten Messwerte unterscheiden, oder
  • die Kompressoren oder Peripheriegeräte gleichen Typs mit unterschiedlicher Sensorik ausgestattet sind und sich daher in der Zusammensetzung der zur Verfügung gestellten Messwerte unterscheiden, oder
  • eine Mischung aus beiden vorgenannten Gegebenheiten vorliegt.

With regard to the standardization of measured values in the case of a compressor installation, there are often the following, but by no means exhaustively listed, challenges:

• Each compressor system has its own configuration, ie an individual configuration of the compressors and peripheral devices.
• In addition, the sensor system installed in the compressor system is also given individually (both in terms of quantity and in terms of interconnection) and thus in no way standardized.
• Compressors and peripheral devices of a compressor system usually come from different manufacturers and therefore have manufacturer-specific (or control-software-specific) formats for the acquired measured values.
• Even compressors or peripherals of the same type sometimes provide different readings, for example
  • the compressors or peripheral devices of the same type are connected to the control / monitoring unit via different technologies (eg discrete wiring vs. use of a bus system) and therefore differ in the amount of the measured values available, or
  • the compressors or peripheral devices of the same type are equipped with different sensors and therefore differ in the composition of the measured values provided, or
  • a mixture of both aforementioned conditions exists.

It is therefore an object of the present invention to provide a method for controlling and / or monitoring a compressor system, by means of which measured values can be standardized.

This object is achieved in procedural terms with a method for controlling and / or monitoring a compressor system according to the features of claim 1 and in device technical terms with a compressor system according to the features of claim 16. Advantageous developments are specified in the subclaims.

A central idea of the present invention is based on the following guiding principle: In order to be able to further process the measured values which are relevant for the compressor installation in different questions, it is essential that the meaning of the measured values is defined and known at the latest at the time of evaluation of the measured values. Advantageous In this case, it may also be the case that the measured values of defined and known significance are prepared in advance, during or as a result of the method in such a way that they can be further processed in the control / monitoring unit but also in other technical systems.

The preparation can be understood as measured value standardization. The standardization of measured values also has the advantage that measured values from various compressor systems can be processed without compressor-plant-specific adaptations of the routines intended for measured value processing.

According to a very specific aspect of the present invention, the measured value standardization takes place in that context information is assigned to the measured value itself, so that the context of the measured value is defined at the latest at the time of the evaluation of the measured value.

The context of the measurement may directly or indirectly define the location of the measurement acquisition and / or the medium (e.g., oil, compressed air, ambient air, cooling water, etc.) to which the measurement relates.

Indirect context information can in exceptional cases also take place via a name definition, namely when it is sufficiently unambiguous. This may support the following example: If for example, the manufacturer Kaeser determined that p _N always refers to the machine outlet pressure, so the location of the data acquisition is determined by this convention indirectly determined thus the context for the measurement pressure. However, it should be noted that a name definition is only a very soft definition of the meaning of a metric, since it is very likely that the name definition will be differently applied or interpreted by different people, so that a unique context for the metric over a name definition will not necessarily be guaranteed. In addition, a measured value may have several not necessarily contradictory meanings that may change compressor specific or component specific. Preferred context information defines the location of the measurement directly, for example, using a model of the component or the compressor system.

A control, monitoring, diagnostic or evaluation routine should generally be understood as meaning different control tasks, monitoring tasks, diagnostic tasks or evaluation tasks.

If it is said that the compressors and peripheral devices are arranged or interconnected in a predetermined configuration, this should be understood in the sense that it also includes several changing states, such as an alternative configuration achievable by switching a valve, a switch is. A predetermined configuration is the amount of all conceivable configurations that the compressor system can assume in different operating states.

A configuration may, for example, be defined in the form of a P & ID scheme and to this extent capture the interactions of the compressors and peripheral devices or the elements of a component from different viewing angles or in different domains, wherein for the realization of the invention the detection of the functional relationships in a domain, Of course, from one point of view, it is sufficient. As a possible domain or possible viewing angles are, for example, but not exhaustive, the compressed-technical interactions, which can be reproduced in an R & I scheme in the strict sense, in particular a compressed air P & ID scheme, the heat recovery-related interactions, in an R & I scheme in In a narrower sense, in particular in a heat recovery R & I scheme can be reproduced, the cooling water cycle related interactions, which can be reproduced in a R & I scheme in the strict sense, in particular in a cooling water circuit R & I scheme, as well as the power-related interactions that in an electrical Schematic can be considered, considered.

Moreover, an R & I scheme in the sense of the present invention can be abstracted from the basic interactions in a viewing direction / from a domain and thus does not have to include all the details of a possibly otherwise common P & I scheme. In this case, instead of the term P & ID scheme, it is also possible to understand a graphical representation of the functional relationships in a specific perspective / in a specific domain, such as, for example, a graphical representation of compressed air technical correlations, a graphic representation of the heat recovery related effects. It is insofar a flow chart that reflects the flow of energy and / or resources and / or compressed air between the individual compressors and the individual peripherals or between the individual elements of a component.

• welche Komponenten bzw. Elemente sind involviert,
• welche Verknüpfungen bzw. Verschaltungen stehen zwischen zumindest einem Teil der Komponenten bzw. zumindest einem Teil der Elemente sowie
• wo liegen vordefinierte Messstellen,

können vom Hersteller der Komponenten bzw. der Elemente und/oder vom Anlagenbauer und/oder vom Anlagenbetreiber, beispielsweise über eine Datei zur Verfügung gestellt werden.The R & I schema or partial information of a P & ID schema, namely

• which components or elements are involved,
• which links or interconnections stand between at least a part of the components or at least a part of the elements as well
• where are predefined measuring points,

can be provided by the manufacturer of the components or the elements and / or by the plant manufacturer and / or by the plant operator, for example via a file.

In one possible embodiment, the measured value acquisition step may comprise the metrological direct acquisition of a measured value and / or the recourse to already existing, in particular stored, measured values. On the one hand, measured values which are already available, on the one hand, are measured values from the directly representational compressor system or external measured values. External readings may be comparative data from other compressor equipment or environmental data, such as humidity, air temperature of outdoor or ambient air.

In a likewise preferred refinement, the measured value acquisition step comprises, in addition to the direct measurement-related detection of the measured values, also the storage of these measured values in an assigned database, which can be implemented in one or more components, in the compressor system or externally.

In a further preferred embodiment, the standardization of the measured value by assigning a context information specifically comprises the unique assignment of the location of a measured value acquisition and / or the medium to which the measured value refers (eg oil, compressed air, ambient air, cooling water, etc.) to a measured value within an assignment step according to the invention. In the context of the present application is always under the location of the measured value The real place to understand where a reading is detected, whereas the term measuring point should always mean the location of this real place within an initial model. If the assignment of the location of a measured value detection is mentioned, then this can be understood as meaning that a specific location, but also two or more locations, can be assigned to the measured value. Likewise, by assigning the medium to which the measured value relates, it should be understood that both a single medium and two or more media can be assigned as context information to a measured value.

In a particularly specific development, the location of the measured value detection is defined by one or more output models of the specific compressor system or comparable compressor systems and / or one or more output models of the specific components or comparable components.

These output models can be defined for example by the aforementioned R & I schemes of the compressor system or the aforementioned R & I schemes of the corresponding components.

• der Messwert selbst,
• die Zuordnung des Messwertes zu einer Kontextinformation bzw. einer Messstelle und
• das Ausgangsmodell, anhand dessen die Kontextinformation bzw. die Messstelle definiert sind,

bekannt sind und insofern in der nachfolgenden Steuer-, Überwachungs-, Diagnose- oder Auswertroutine Berücksichtigung finden.In a further preferred embodiment of the method according to the invention, it is provided that at the latest immediately before or for the utilization step

• the reading itself,
• the assignment of the measured value to a context information or a measuring point and
• the initial model, on the basis of which the context information or the measuring point are defined,

are known and thus considered in the subsequent control, monitoring, diagnostic or Auswertroutine.

In this respect, for a valid interpretation of standardized measured values, it is necessary not only to know the measured value itself and the assignment of the measured value to a context information or a measuring point, but also to know the referenced initial model, in which the measuring point or on the basis of which the context information is defined. In concrete embodiments, for example, all three components (measured value, assignment and model) stored in a control / monitoring unit, wherein at the same time the evaluation or the subsequent utilization step takes place in this control / monitoring unit. Alternatively, the three components (measured value, assignment, model) can be read out of the control / monitoring unit in order to provide the standardized measurement values in external systems, which need not be under control of the control / monitoring unit, with routines for monitoring (diagnosis, prediction a maintenance date or predictive maintenance, etc.).

In this case, a plurality of alternatives for determining the location of the measured value acquisition are preferably conceivable. In a first conceivable variant, the measured value is assigned a preconfigured measuring point on a component or on an element of a component, wherein a connection of the component with other components or a combination of the elements with other elements is not considered. In a second variant, in addition to the determination according to the first variant, it is additionally permitted that the measuring point is freely configurable on a component or on an element of a component, wherein a connection of the component with other components or a connection of the component with other components also no consideration here. In a third variant, the interconnection of the components via an output model of the compressor system or the interconnection of the elements via an output model of the component is known. The measured value in this third variant is assigned a preconfigured measuring point in this output model. Finally, in a fourth variant, the measured value can be assigned a freely configurable measuring point in the starting model, which takes into account the linked components or the elements linked to one another. The assignment of a context information to a measured value can preferably take place via an allocation table.

The assignment via an allocation table can generally be understood in such a way that the list or set of assignments does not have to be present exactly in the form of a table, for example in an Excel spreadsheet, but can also be represented in formats such as XML or JSON.

By specifying the measuring point to which a measured value relates, in the form of the associated context information and in that the model underlying the context information is known, the thus standardized measured value can be correctly evaluated or analyzed in subsequent evaluation routines or analysis steps and in further Routines are used.

1. a) mindestens eine Komponente,
2. b) ggf. Verknüpfungen bzw. Verschaltungen zwischen zumindest einem Teil der Komponenten (es kann auch Komponenten ohne Verknüpfung geben) sowie
3. c) ggf. Messstellen.

Components of the output model of a compressor system are included

1. a) at least one component,
2. b) possibly links or interconnections between at least a part of the components (there may also be components without linking) as well
3. c) if necessary measuring points.

With regard to the definition of the model, it should be noted that both a), b) or c) can be predetermined, but can also be determined in whole or in part before, during or after the compressor system is put into operation. Purely by way of example is on the EP 13159618 directed. There, among other things, it is proposed to define a model of the compressor system in that the user / plant manufacturer enters the given P & ID scheme into the control / monitoring unit during commissioning via an editor.

1. a) mindestens ein Element,
2. b) ggf. Verknüpfungen bzw. Verschaltungen zwischen zumindest einem Teil der Elemente (es kann auch Elemente ohne Verknüpfungen geben) sowie
3. c) ggf. Messstellen.

With regard to the starting model of a component, the following should be noted: The components of the starting model of a component include

1. a) at least one element,
2. b) possibly links or interconnections between at least part of the elements (there may also be elements without links) and
3. c) if necessary measuring points.

• Elementen,
• Verknüpfungen/Verschaltungen,
• Messstellen

so anpassen, dass sie für die konkreten Komponenten in der Kompressoranlage zutreffend/anwendbar sind.The starting model of a component may be predetermined / predetermined as far as a), b) or c) is concerned, but it may also be defined in whole or in part during or after the compressor system is put into operation. A concrete example could be configured as follows: In the control / monitoring unit, general component models (ie component models that fit many applications) are stored. The compressor operator can change the component models by adding or removing

• elements,
• Shortcuts / interconnections,
• measuring points

adjust so that they are applicable to the specific components in the compressor system.

• Der Betreiber einer Kompressoranlage ordnet die Kontextinformationen von Messwerten manuell zu. Dies könnte z.B. bei der Inbetriebnahme geschehen.
• Die Kontextinformation wird vom Anlagenbauer (oder Komponentenhersteller) beispielsweise über eine Datei, zur Verfügung gestellt.
• Eine Komponente, also ein Kompressor oder ein Peripheriegerät überträgt selbst, zusätzlich zu den Messwerten, die Kontextzuordnung (und falls notwendig auch das Ausgangsmodell, in dem die Kontextinformation definiert ist), an die Steuer-/Überwachungseinheit.

Regardless of whether the assignment of a context information via an assignment table or otherwise takes place, it should be noted that for the specific determination of the assignment of the context information to a measured value, in particular based on an initial model, different variants are conceivable. By no means exhaustive, but for example, the following conceivable variants are mentioned:

• The operator of a compressor system assigns the context information of measured values manually. This could happen eg during commissioning.
• The context information is provided by the plant manufacturer (or component manufacturer), for example via a file.
• A component, ie a compressor or a peripheral unit transmits, in addition to the measured values, the context assignment (and, if necessary, also the output model in which the context information is defined) to the control / monitoring unit.

The measured values recorded in the measured value acquisition step can comprise physical or logical variables, for example values detected by sensors within the compressor system or within the components and / or values detected outside the compressor system (eg public climate database, weather station, ambient air thermometer, etc.) Compressor systems provided measured values, or the like and / or actuator positions and / or standby states of machines and / or operating conditions and / or controlled variables.

Although this can not be compelling in any case and even disadvantageous in terms of data technology, it is of course possible to save the measured value itself and the associated context information together as a data pair. However, it could be much more elegant, measured values and associated context information only in the step of evaluation, analysis, etc., so then, if there is a concrete utilization requirement of the measured values, merge.

In one possible embodiment, it is conceivable that, as further context information, the superordinate state of the compressor system and / or individual components at the time of data acquisition can also be assigned to the respective measured value (s). This ensures that non-differentiated measured values of a compressor in the startup behavior are compared with measured values of a compressor in the stable operating state, without these different boundary conditions also being taken into account in such a comparison. The superordinate state of the compressor system can also be taken into account, for example, by assigning one or more other measured values of the compressor system at this time as additional context information to the one or more measured values from which the state of the compressor system or a partial state of the compressor system can be derived. If this further measured value or these further measured values are provided with a time stamp, for example, the assignment of this further or these further measured values to the measured value considered can also take place at a later time, since then measured values with the same or comparable time stamp in FIG Can be considered and assigned.

While it has been described above that a plurality of context information can be assigned to a measured value in the context of a (single) model, it is also conceivable in a further possible embodiment that a context can be assigned a context simultaneously in a plurality of initial models. For example, one could imagine that for a stationary, oil-injected screw compressor, there exists at the same time an output model (component output model) for the pure air circuit and an output model (component output model) for the pure oil circuit. For the standardization of the measured value of the compression end temperature (VET), the same measured value would then be assigned to the context "temperature on the pressure side of the compressor block" in both output models.

In a specifically preferred embodiment, the measured value also includes a time stamp. The combination with a time stamp or the continuous time recording allows statements about the development of individual Measured values or the relevant components or the entire compressor system to draw.

In a preferred embodiment of the method according to the invention, it can further be provided that in a first processing step of the measured value it is checked whether the measured value including the size and (physical) unit is detected and, if not, the measured value in this first processing step size type and unit, in particular be assigned to a stored initial model, manually or automatically by means of an allocation table.

Furthermore, it is regarded as a preferred embodiment of the method if, in particular by the control / monitoring unit and a history of output models and / or a history of context associations is stored to deposit which output models or which context associations valid at any given time were. In this way, for each measured value acquired with a specific time stamp, it can be determined which meaning or which context information must be given to a measured value based on a combination of the output model valid for this time stamp and the context assignments valid for this time stamp.

• wobei die Steuer-/Überwachungseinheit eine Messwerterfassungseinheit aufweist bzw. mit einer Messwerterfassungseinheit zusammenwirkt, die zur Erfassung von Messwerten innerhalb der Kompressoranlage oder der Komponenten ausgebildet ist,
• wobei Steuer-/Überwachungseinheit weiterhin eine Zuordnungseinheit umfasst bzw. mit einer Zuordnungseinheit zusammenwirkt, die dazu ausgebildet ist, den erfassten Messwerten jeweils eine Kontextinformation zuzuordnen, um die Messwerte zu standardisieren
• und wobei die Steuer-/Überwachungseinheit eine Schnittstelle umfasst, um die durch die Kontextinformation standardisierten Messwerte weiterzugeben bzw. selbst in nachfolgenden Steuer-, Überwachungs-, Diagnose- oder Auswertroutinen einzusetzen.

The invention further relates to a compressor system comprising a plurality of components, namely one or more compressors and one or more peripheral devices, and a control / monitoring unit, wherein the compressors and peripheral devices are arranged or interconnected in a predetermined configuration,

• wherein the control / monitoring unit has a measured value acquisition unit or cooperates with a measured value acquisition unit which is designed to record measured values within the compressor installation or the components,
• wherein control / monitoring unit further comprises an allocation unit or cooperates with an allocation unit which is adapted to each of the detected measured values assign a context information to standardize the measured values
• and wherein the control / monitoring unit comprises an interface in order to pass on the measured values standardized by the context information or even in subsequent control, monitoring, diagnostic or evaluation routines.

Figur 1

eine beispielhafte Konfiguration einer Kompressoranlage, die mit erfindungsgemäßen Steuer-/Überwachungseinheit zusammenwirkt.

Figur 2

ein Ausgangsmodell, das die Kompressoranlage in ihrer konkret gegebenen Konfiguration in Gestalt eines R&I-Schemas darstellt.

Figur 3

eine Darstellung zur Veranschaulichung eines mittelbar definierten Ortes einer Messwerterfassung über eine Namensdefinition.

Figur 4

ein Ausgangsmodell zur Festlegung der Kontextinformation bei einem stationären, öleingespritzten Schraubenkompressor gemäß einer ersten Variante.

Figur 5

eine Veranschaulichung der Zuordnung von Messwerten zu konfigurierten Messstellen einer Komponente, wie anhand von Figur 4 veranschaulicht.

Figur 6

ein Ausgangsmodell zur Festlegung der Kontextinformation bei einem stationären, öleingespritzten Schraubenkompressor gemäß einer zweiten Variante.

Figur 7

vereinfachtes R&I-Schema als Ausgangsmodell eines stationären, öleingespritzten Schraubenkompressors ohne Anbautrockner.

Figur 8

vereinfachtes R&I-Schema als Ausgangsmodell eines stationären, öleingespritzten Schraubenkompressors mit Anbautrockner.

The invention will be further explained with regard to further features and advantages with reference to the description of exemplary embodiments and with reference to the accompanying drawings. Show here:

FIG. 1

an exemplary configuration of a compressor system, which cooperates with control / monitoring unit according to the invention.

FIG. 2

an initial model, which represents the compressor plant in its concretely given configuration in the form of a P & ID scheme.

FIG. 3

a representation to illustrate an indirectly defined location of a data acquisition via a name definition.

FIG. 4

an output model for determining the context information in a stationary, oil-injected screw compressor according to a first variant.

FIG. 5

an illustration of the assignment of measured values to configured measuring points of a component, as based on FIG. 4 illustrated.

FIG. 6

an output model for determining the context information in a stationary, oil-injected screw compressor according to a second variant.

FIG. 7

simplified R & I scheme as initial model of a stationary, oil-injected screw compressor without add-on dryer.

FIG. 8

simplified R & I scheme as initial model of a stationary, oil-injected screw compressor with attached dryer.

In FIG. 1 an example configuration of a compressor system is shown, which cooperates with a control / monitoring unit. The Compressor system exemplified comprises three compressors 11, 12, 13 arranged parallel to each other. Each compressor 11, 12, 13 is uniquely associated with a filter 14, 15, 16, which is arranged in each case downstream of the associated compressor 11, 12, 13. Downstream of the filters 14, 15, 16, two dryers 19, 20 are connected. The compressed air downstream of the first filter should always flow over the first dryer 19. The compressed air downstream of the second filter can be passed via two valves 17, 18 either via the first dryer 19 or via the second dryer 20. The two valves 17, 18 are designed or activated such that they are never opened at the same time, ie when the first valve 17 is opened, the second valve 18 remains closed or the first valve 17 remains closed when the second valve 18 is opened.

Downstream of the two dryers 19, 20, a compressed air reservoir 21 is arranged. Downstream of the compressed air reservoir 21, a pressure sensor 28 is still arranged to detect the operating pressure given there.

For controlling and / or monitoring the compressor system, a control / monitoring unit 22 is provided, which with the compressors 11, 12, 13 and the filters 14, 15, 16, the valves 17, 18, the dryers 19, 20, the compressed air reservoir 21st and the pressure sensor 28 is in operative connection. The filters 14, 15, 16, the valves 17, 18, the dryers 19, 20 of the compressed air reservoir 21 and the pressure sensor 28 in this case form peripheral devices of the compressor system. Together with the compressors 11, 12, 13, these peripheral devices form the components of the compressor system.

The control / monitoring unit 22 is still connected to a memory section 24 and an editor 23 in operative connection. However, the memory section 24 and / or the editor 23 may also be an integral part of the control / monitoring unit 22. The control / monitoring unit 22 can fulfill control functions, monitoring functions or control and monitoring functions.

Surveillance should in the present case be understood as any form of evaluation, that is to say in addition to monitoring for malfunctions, unusual operating states, alarm situations, etc. also a diagnosis, in particular in the case of an already existing error message, an analysis or evaluation, for example, with regard to an optimization or an evaluation for the prognosis of a next maintenance date (predictive maintenance).

In the present exemplary embodiment, the control / monitoring unit 22 comprises a measured value acquisition unit 25 and an allocation unit 26, which are both components of the control / monitoring unit 22 here. However, it is also possible, in other embodiments, to provide the measured value acquisition unit 25 completely or partially separately from the control / monitoring unit 22. Furthermore, it is also possible to provide the allocation unit 26 completely or at least partially separately from the control / monitoring unit 22.

In the present embodiment, the control / monitoring unit 22 detects measured values within the compressor system or within the components during operation of the compressor system or during operation of the components, during startup and / or shutdown phases or in idle states. As measured values, different data can be considered, namely physical quantities or variables derived therefrom or also logical variables, for example values detected by sensors within the compressor system or within the components and / or values detected by sensors outside the compressor system (eg public air conditioning system). Database, ambient air thermometer, measured values of other compressor systems, measured values transmitted by compressed air consumption aggregates, etc.) and / or actuator positions and / or standby states of machines and / or operating states and / or controlled variables.

With the measured value detection unit 25, the control / monitoring unit 22 detects such measured values, either by actual measurement within the compressor system or by transmission from the components to the control / monitoring unit, either by specific query to individual components within the compressor system or through targeted Query of measured values, for example in databases external to the compressor system or in the compressor system associated databases. However, the measured value as such is useless for a subsequent control, monitoring, diagnostic or evaluation routine, unless its meaning is fixed, so the context value can be assigned to the measured value. For this reason, the assignment unit 26 assigns the context information to a measured value in order to standardize this measured value.

Such an assignment in an assignment step may be carried out simultaneously with or after the measured value acquisition. By marking the measured value with context information, this data pair can be taken into account as a standardized measured value in the subsequent control, monitoring, diagnostic or evaluation routines. The context information defines an association of the location of a measured value acquisition and / or of the medium to which the measured value relates.

In a specific preferred embodiment, one or more output models of the concrete compressor system or comparable compressor systems are taken into account when assigning the location of the measured value detection and / or the medium to which the measured value relates. Only if the context in which the measured value was determined is known, can the meaning of the measured value be handled appropriately.

The compressor system after FIG. 1 For example, it can be found in a P & ID scheme FIG. 2 describe. The R & I scheme after FIG. 2 forms an initial model for the compressor system FIG. 1 by determining the interaction within the compressor plant. If a measurement within such a model, as the R & I scheme after FIG. 2 defined, localized, the context information of the measured value is clear and insofar the meaning of the measured value determined.

Although an initial model in the form of a P & ID scheme, as in FIG. 2 for the compressor system FIG. 1 is defined, a particularly suitable model defined to give the most accurate context information for a measured value, even weaker context information that encode the location of the measured value detection, think and make sense. A first conceivable coding could take place via a name definition, but only if this name definition is sufficiently clear.

This is to be explained below with reference to FIG. 3 be explained. The location of the measurement, for example, has the manufacturer Kaeser determined that p _N should always refer to the machine outlet pressure, then indirectly through these names definition set defined thus the context for the measurement pressure.

In FIG. 3 However, two variants of compressors are illustrated, both first an inlet valve 29, a compressor block 30 with a screw compressor, downstream of the compressor block 30, an oil separator 31, which continues the heated compressed air to an air cooler 32. In an oil circuit 33, oil is supplied to cool the compressor block 30 and to ensure a lubricating film on the screw in the compressor block, wherein the compressed air generated by compressed air mixed in the aforementioned oil separator 31 is discharged again and returned to the compressor block 30, wherein a via a Thermoventil 34 adjustable partial flow can be performed via an oil cooler 35 to reduce the oil temperature. The two in FIG. 3 However, compressors illustrated by means of an R & I scheme differ in that the compressor shown above without internal attachment drier 36 (variant A), while the compressor shown below is equipped with internal attachment drier 36 (variant B).

Although the naming convention now specifies that p _N denotes the machine outlet pressure; However, whether the compressed air was previously passed through a mounted dryer 36 of the compressor (variant B) or not (variant A), can not be derived from this naming convention.

In this respect, it makes sense to encode the R & I scheme of the compressor in a more precise context information of the measured value acquired at the pressure sensor 28, so that it is clear from this model-based context information whether the pressure detected at the pressure sensor 28 measures compressed air. which has flowed through an attachment dryer 36 (variant B) or is discharged from the compressor without attachment dryer 36 (variant A).

In FIG. 4 is a simplified model for determining the context information in a stationary, oil-injected screw compressor illustrated, in which case the interactions between the individual elements compressor block 30, oil separator 31, air cooler 32, input 37, output 38 are not defined. Based on the element compressor block 30 pressure and temperature can be detected both on the suction side and on the pressure side (T _suction , p _suction , VET, P _pressure ). For the oil separator 31, however, only the detection of a pressure (p _i , but not, for example, the detection of a temperature is provided.

The standardization of the meaning of measured values is now done by assigning to a measured value one or more measuring points in the model for standardizing the meaning of measured values.

The fundamental principle is based on FIG. 5 illustrated. The measured values recorded for a component have - at the latest after a first measured value preparation - received a standardization in terms of the content, that the physical size type (pressure, temperature, ...) and the unit (Pa, K, ...) are known. The measured values pressure 1, pressure 2, temperature 1 prepared in a first step should now be assigned a context information. For this purpose, reference is made to the initial model of a component, specifically the stationary, oil-injected screw compressor FIG. 4 , is used in principle for this component, namely a stationary, oil-injected screw compressor without attachment dryer, defined which measuring points are basically predefined. These are each in FIG. 5 in the context information field. There is now an assignment of the measured value or the measured values, specifically pressure 1, pressure 2, temperature 1 to one in the output model of the component according to FIG FIG. 4 predefined measuring point, wherein this assignment takes place here specifically by a connecting line between the respective measured value and the context information. By assigning the measured value to an intended measuring point in the output model, the meaning of the measured value with respect to the context is now defined.

It should be noted that a measured value can also be assigned to two measuring points (illustrated here by the example of "pressure 2"). In the case of a multiple assignment of a measured value to measuring points, a partial meaning for a measured value is shown in each case (in this case specifically: "pressure downstream of the air cooler" and "machine output pressure"). With this kind of context information, this is often necessary, since in reality a measuring point can also sit between two components (and thus is related to both components). But if you put a starting model after FIG. 4 underlying, the interactions between the components are not modeled.

That on the basis of FIG. 4 However, explained method for the standardization of the meaning of measured values has the limitation that only measuring points, which in the Starting model after FIG. 4 have been thought of (size of specific connection to a component) for the standardization of meaning of readings can be used. To soften this limitation, the method can further provide that own measuring points can be defined in initial models of components in order to use them for standardizing the meaning of measured values. In this definition of context information, it should also be noted that the components are defined in advance and that the connection of the components is ignored.

In an improvement of the standardization of the measured values is now based on an initial model for a component according to FIG. 6 not only the individual elements of the component itself are defined, but also the link between the individual elements is defined. As a concrete example of a corresponding initial model, a stationary, oil-injected screw compressor without add-on dryer was used again.

Again, the predefined measuring points are marked in the initial model. The measuring points correspond to the measuring points in FIG. 4 , However, in the initial model, which now also encodes the causal relationships of the individual elements, the information is already contained that p is _cold = p _N and thus p _cold can be omitted as a preconfigured measuring point. The assignment step for individual measured values can then be determined as based on FIG. 5 in the context of the initial model FIG. 4 described described.

In a further expansion stage of the original model FIG. 5 It is possible to freely configure the measuring points for a size type at specific connections of an element.

The definition of a measuring point and the assignment of acquired measured values to a measuring point on the basis of an output model were explained above with reference to the example of a stationary, oil-injected screw compressor without mounted dryer. It goes without saying that this procedure can also be transferred to any other component of a compressor system or to the compressor system itself. If you transfer the original model FIG. 4 for a single component on the entire compressor system, so would be essential or all components of a compressor system without their defined concrete contexts. Preconfigured measuring points would be predefined on the individual components for different measured quantities. In each case recorded measured values could be assigned in the same way a context information. Of course, it is also possible to provide in a modification not only preconfigured measuring points on the individual components of a compressor system, but to allow that corresponding measuring points can be freely configured.

In a modified embodiment, not only the essential or all components are defined for a compressor system, but also the active compounds between the components known, for example on the basis of an R & I scheme, as based on an exemplary compressor plant FIG. 2 illustrated. Also in this case preconfigured measuring points can be defined in a corresponding initial model. In a further modification, however, it is also possible that such measuring points can be freely configured within the output model. The decisive factor is that specific concrete context information can be assigned for each measured value acquired on the basis of such initial models.

• in Simulationsmodellen für den ersten Simulationsschritt einen Anfangswert vorgeben zu können,
• bei einer Diagnoseroutine reale Messdaten mit über ein Modell abgeleiteten Daten zu vergleichen,
• Analysen über die Zuverlässigkeit einzelner Komponenten bzw. der gesamten Kompressoranlage, beispielsweise unter dem Aspekt des Energieverbrauchs, durchzuführen,
• eine Prognose für die Durchführung der nächsten Wartungsmaßnahmen unter möglichst akkuraten Messdaten aus der Vergangenheit zu erstellen, etc.

The application of standardized data is fundamentally diverse. Standardized measurement data can be used, for example, for

• be able to specify an initial value in simulation models for the first simulation step,
• compare real metrics with model-derived data in a diagnostic routine
• Carry out analyzes on the reliability of individual components or the entire compressor system, for example in terms of energy consumption,
• to create a prognosis for the execution of the next maintenance measures under the most accurate measurement data from the past, etc.

Overall, for the case-by-case analysis of measured field data (sensor values, characteristic values, etc.) it is a prerequisite that every datum has a well-defined meaning and possibly a well-defined unit (eg temperature in ° C or pressure in Pa). If meaning and / or unit of a date is unknown, is an analysis, apart from statistical Analyzes, not possible. In particular, analysis results can not be interpreted. By applying domain-specific models, it becomes possible to assign measurement data a well-defined meaning with regard to one or more aspects. This is done by defining the location of the data acquisition based on a domain-specific model. By analyzing the domain-specific model, the meaning of a date can then be deduced.

This becomes clear when one considers the P & ID scheme of a stationary, oil-injected screw compressor without add-on dryer (cf. FIG. 7 ) with the R & I scheme of a stationary, oil-injected screw compressor with attachment dryer (cf. FIG. 8 ) compares. Both compressors have the same number of sensors installed. The sensors are named the same. However, from the name of the sensors, no meaning is derivable. This becomes clear on the sensor which supplies the measured value T _out . In a compressor without an attachment dryer the gauge has the meaning "temperature downstream of the air cooler" and "temperature at the outlet of the compressor". In the compressor with attachment dryer, the sensor has the meaning "temperature downstream of the dryer" and "temperature at the outlet of the compressor". This difference in meaning is relevant to the analysis. The assignment of the corresponding context information via a defined output model is crucial in order to be able to use measured values sensibly in further control, monitoring, diagnostic or evaluation routines.

• den zeitlichen Wertverlauf eines Messwerts und
• die Bedeutung eines Messwerts

können getrennt voneinander erfasst und gespeichert werden. "Getrennt" kann hierbei sowohl zeitlich als auch örtlich zu verstehen sein (alternativ und kumulativ). Beispielhaft seien folgende Szenarien angegeben:

• Unter Anwendung eines auf einem R&I-Schema beruhenden Ausgangsmodell der Kompressoranlage und mehrerer auf R&I-Schemata beruhender Ausgangsmodelle der Komponenten der Kompressoranlage wird die Messwertbedeutung bzw. die Kontextinformation der von der Steuer-/Überwachungseinheit erfassten Messwerte in der Steuer-/Überwachungseinheit oder extern, beispielsweise in einem Speicherabschnitt 24 hinterlegt. Das Hinterlegen der Kontextinformationen (Messwertbedeutungen) geschieht z.B. bei der Inbetriebnahme der Kompressoranlage bzw. bei der Inbetriebnahme der Steuer-/Überwachungseinheit. Die Kontextinformationen (Messwertbedeutungen) können z.B. in Form einer Tabelle in der Steuer-/Überwachungseinheit hinterlegt werden.

As described above, it is relevant to know the meaning of the measured values at the latest at the time of analysis of measured values. For many applications, however, it is not necessary to know the meaning of a measured value already at the time of the measured value acquisition. The information about

• the temporal value of a measured value and
• the meaning of a measured value

can be captured and stored separately. "Separated" can be understood both temporally and spatially (alternatively and cumulatively). By way of example, the following scenarios are indicated:

• Using a starting model of the compressor system based on an R & I scheme and several output models of the components of the compressor system based on P & ID schemes, the measured value meaning or the context information of the measured values acquired by the control / monitoring unit in the control / monitoring unit or externally, for example deposited in a memory section 24. The storage of the context information (measured value meanings) takes place, for example, during the startup of the compressor system or during the commissioning of the control / monitoring unit. The context information (measured value meanings) can, for example, be stored in the form of a table in the control / monitoring unit.

The measured values detected by the control / monitoring unit are typically stored in the control / monitoring unit as a process image (actual values) and as a process data history (historical values). The storage can (but does not have to) take place without context information (information about the meaning of the measured value), since in the control / monitoring unit the context information is available at all times and can be assigned to the measured values at a desired time. The assignment of context information to a measured value is done in a possible embodiment via an assignment table. The assignment table stores which context information is assigned to the measured values. One and the same measured value can have several (contradiction-free) meanings at the same time and one and the same meaning can of course be associated with several measured values.

A double assignment of measured value meanings may be useful if the reliability or the accuracy of the measured value acquisition is to be increased. If, for example, one of two sensors for measuring value detection fails, the measured value of the other sensor can be used for further processing. If the measured values of both sensors, which ultimately produce measured values with the same measured value significance, are available, the accuracy of the measured value acquisition can be increased by calculating (averaging, maximum value formation, minimum value formation).

Before processing measured values, measured values and context information (measured value meanings) are merged, if not already done during storage. Merging metrics and context information is done using the models used to define the Context information was used, an automatic evaluation possible. Analysis routines are used for the evaluation.

If the analysis routines in the control and monitoring unit are running, or if the system that executes the analysis routines is connected to the control and monitoring unit in terms of data, an automatic evaluation is also possible in real time.

Regarding the development of output models for compressor plants is on the EP 13159618.1 which is hereby fully incorporated by reference. At the same time, the data standardized according to the present invention may also contribute to the data disclosed in EP 13159618.1 To further refine the definition of functional relationships between components of a compressor installation in the form of a P & ID scheme.

The data standardized according to the present invention may also be used in the development of derived models, such as in EP 13159616.5 be considered, which is hereby fully incorporated by reference.

Although the invention has been described with reference to a compressor unit, that is to say for overpressure, all the principles are transferable to a vacuum system in which pumps are used instead of compressors.

1. 1. Verfahren zum Steuern und/oder Überwachen einer Kompressoranlage umfassend mehrere Komponenten, nämlich ein oder mehrere Kompressoren (11, 12, 13) und ein oder mehrere Peripheriegeräte (14 bis 21), sowie eine Steuer-/Überwachungseinheit (22),
   wobei die Kompressoren (11, 12, 13) und Peripheriegeräte (14 bis 21) in einer bestimmten Konfiguration angeordnet bzw. verschaltet sind,
   • wobei in einem Messwerterfassungsschritt Messwerte innerhalb der Kompressoranlage oder der Komponenten erfasst werden,
   • wobei in einem Zuordnungsschritt dem oder den Messwerten vorher, gleichzeitig oder nach der Messwerterfassung jeweils eine Kontextinformation zugeordnet wird, um die Messwerte zu standardisieren, und
   • wobei in einem Verwertungsschritt der oder die durch die Kontextinformation standardisierten Messwerte in einer Steuer-, Überwachungs-, Diagnose- oder Auswertroutine Berücksichtigung finden.
2. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Messwerterfassungsschritt das messtechnische unmittelbare Erfassen eines Messwertes und/oder das Zurückgreifen auf gespeicherte Messwerte umfasst.
3. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass im Messwerterfassungsschritt die messtechnisch unmittelbar erfassten Messwerte in einer zugeordneten Datenbank, die innerhalb der Komponenten, in der Kompressoranlage oder extern implementiert sein kann, abgespeichert werden.
4. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Standardisierung des Messwertes durch Zuordnen einer Kontextinformation konkret die eindeutige Zuordnung des Ortes einer Messwerterfassung und/oder des Mediums, auf das sich der Messwert bezieht, umfasst.
5. 5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass zur Zuordnung des Ortes der Messwerterfassung und/oder des Mediums, auf das sich der Messwert bezieht, ein oder mehrere Ausgangsmodelle der konkreten Kompressoranlage bzw. vergleichbarer Kompressoranlagen und/oder ein oder mehrere Ausgangsmodelle der konkreten Komponenten bzw. vergleichbarer Komponenten Berücksichtigung finden.
6. 6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass spätestens unmittelbar vor oder für den Verwertungsschritt
   • der Messwert selbst,
   • die Zuordnung des Messwertes zu einer Kontextinformation bzw. einer Messstelle und
   • das Ausgangsmodell, anhand dessen die Kontextinformation bzw. die Messstelle definiert sind,
   bekannt sind und insofern in der nachfolgenden Steuer-, Überwachungs-, Diagnose- oder Auswertroutine Berücksichtigung finden.
7. 7. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der Ort der Messwerterfassung in einem Ausgangsmodell der Kompressoranlage definiert ist,
   • bei dem vordefinierte Messstellen an einzelnen nicht miteinander verknüpften Komponenten definiert sind oder
   • bei dem frei konfigurierbare Messstellen an einzelnen nicht miteinander verknüpften Komponenten definierbar sind oder
   • bei dem vordefinierte Messstellen bei miteinander zu einer Kompressoranlage verknüpften Komponenten definiert sind oder
   • bei dem frei konfigurierbare Messstellen innerhalb von zu einer Kompressoranlage verknüpften Komponenten definierbar sind.
8. 8. Verfahren nach Anspruch 5 oder 6,
   wobei die Komponenten der Kompressoranlage jeweils mehrere in Wirkverbindung stehende Elemente (29 bis 36) umfassen, dadurch gekennzeichnet, dass der Ort der Messwerterfassung in einem Ausgangsmodell der Komponente(n) definiert ist,
   • bei dem vordefinierte Messstellen an einzelnen nicht miteinander verknüpften Elementen definiert sind oder
   • bei dem frei konfigurierbare Messstellen an einzelnen nicht miteinander verknüpften Elementen definierbar sind oder
   • bei dem vordefinierte Messstellen bei miteinander zu einer Kompressoranlage verknüpften Elementen definiert sind oder
   • bei dem frei konfigurierbare Messstellen innerhalb von zu einer Kompressoranlage verknüpften Elementen definierbar sind.
9. 9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Zuordnung einer Kontextinformation zu einem Messwert über eine Zuordnungstabelle erfolgt.
10. 10. Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die im Messwerterfassungsschritt erfassten Messwerte physikalische und/oder logische Größen, beispielsweise
    • von Sensoren erfasste Werte innerhalb der Kompressoranlage bzw. innerhalb der Komponenten und/oder
    • von Sensoren erfasste Werte außerhalb der Kompressoranlage (z.B. öffentliche Klima-Datenbank, Wetterstation, Umgebungsluft-Thermometer, o.ä.) und/oder
    • Aktuatorstellungen und/oder
    • Bereitschaftszustände von Maschinen und/oder
    • Betriebszustände und/oder
    • Regelgrößen
    umfassen.
11. 11. Verfahren nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass Messwert und zugeordnete Kontextinformation gemeinsam als Datenpaar abgespeichert werden.
12. 12. Verfahren nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass als weitere Kontextinformation dem oder den Messwerten auch der zum Zeitpunkt der Datenerfassung übergeordnete Zustand der Kompressoranlage und/oder einzelner Komponenten zuordenbar ist.
13. 13. Verfahren nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass der Messwert auch einen Zeitstempel umfasst.
14. 14. Verfahren nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass in einem Erstaufbereitungsschritt des Messwertes überprüft wird, ob der Messwert inklusive Größenart und Einheit erfasst ist und, falls nicht, dem Messwert in diesem ersten Aufbereitungsschritt Größenart und/oder Einheit, insbesondere basierend auf einem hinterlegten Ausgangsmodell, zugeordnet werden.
15. 15. Verfahren nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass eine Historie von Ausgangsmodellen und/oder eine Historie von Kontextzuordnungen abgelegt wird, um zu hinterlegen, welche Ausgangsmodelle bzw. welche Kontextzuordnungen zu einem jeweils gegebenen Zeitpunkt gültig waren.
16. 16. Kompressoranlage umfassend mehrere Komponenten, nämlich ein oder mehrere Kompressoren und ein oder mehrere Peripheriegeräte, sowie eine Steuer-/Überwachungseinheit,
    wobei die Kompressoren (11, 12, 13) und Peripheriegeräte (14 bis 21) in einer vorbestimmten Konfiguration angeordnet bzw. verschaltet sind,
    • wobei die Steuer-/Überwachungseinheit (22) eine Messwerterfassungseinheit (25) aufweist bzw. mit einer Messwerterfassungseinheit (25) zusammenwirkt, die zur Erfassung von Messwerten innerhalb der Kompressoranlage oder der Komponenten ausgebildet ist,
    • wobei Steuer-/Überwachungseinheit (22) weiterhin eine Zuordnungseinheit (26) umfasst bzw. mit einer Zuordnungseinheit (26) zusammenwirkt, die dazu ausgebildet ist, den erfassten Messwerten jeweils eine Kontextinformation zuzuordnen, um die Messwerte zu standardisieren
    • und wobei die Steuer-/Überwachungseinheit (22) eine Schnittstelle (27) umfasst, um die durch die Kontextinformation standardisierten Messwerte weiterzugeben bzw. selbst in nachfolgenden Steuer-, Überwachungs-, Diagnose- oder Auswertroutinen einzusetzen.

Particular embodiments of the invention are:

1. A method for controlling and / or monitoring a compressor system comprising a plurality of components, namely one or more compressors (11, 12, 13) and one or more peripheral devices (14 to 21), and a control / monitoring unit (22),
   wherein the compressors (11, 12, 13) and peripherals (14 to 21) are arranged in a particular configuration,
   • wherein measured values are detected within the compressor system or the components in a measured value acquisition step,
   • wherein, in an assignment step, context information is assigned to the one or more measured values beforehand, simultaneously or after the measured value acquisition, in order to standardize the measured values, and
   • wherein in a utilization step, the measured values standardized by the context information are taken into consideration in a control, monitoring, diagnosis or evaluation routine.
2. 2. The method according to claim 1, characterized in that the measured value detection step comprises the metrological direct detection of a measured value and / or the recourse to stored measured values.
3. 3. The method according to claim 2, characterized in that in the measured value detection step, the metrologically directly measured values are stored in an associated database, which may be implemented within the components in the compressor system or externally.
4. 4. The method according to any one of claims 1 to 3, characterized in that the standardization of the measured value by assigning context information concretely includes the unique assignment of the location of a measured value detection and / or the medium to which the measured value relates.
5. 5. The method according to claim 4, characterized in that for the assignment of the location of the measured value detection and / or the medium to which the measured value relates, one or more output models of the concrete compressor system or comparable compressor systems and / or one or more output models of the concrete Components or comparable components are taken into account.
6. 6. The method according to any one of claims 1 to 5, characterized in that at least immediately before or for the recycling step
   • the reading itself,
   • the assignment of the measured value to a context information or a measuring point and
   • the initial model, on the basis of which the context information or the measuring point are defined,
   are known and thus considered in the subsequent control, monitoring, diagnostic or Auswertroutine.
7. 7. The method according to claim 5 or 6, characterized in that the location of the measured value detection is defined in an output model of the compressor system,
   • where predefined measuring points are defined on individual non-linked components or
   • in which freely configurable measuring points can be defined on individual non-linked components or
   • in which predefined measuring points are defined in the case of components linked to one another to a compressor system or
   • in which freely configurable measuring points can be defined within components linked to a compressor system.
8. 8. The method according to claim 5 or 6,
   wherein the components of the compressor system each comprise a plurality of operatively connected elements (29 to 36), characterized in that the location of the measured value detection is defined in an initial model of the component (s),
   • in which predefined measuring points are defined on individual non-linked elements or
   • in which freely configurable measuring points can be defined on individual non-linked elements or
   • in which predefined measuring points are defined in the case of elements linked to one another to a compressor system or
   • in which freely configurable measuring points can be defined within elements linked to a compressor system.
9. 9. The method according to any one of claims 1 to 8, characterized in that the assignment of context information to a measured value via an assignment table.
10. 10. The method according to any one of claims 1 to 9, characterized in that the measured values detected in the measured value detection step physical and / or logical variables, for example
    • detected by sensors within the compressor system or within the components and / or
    • Values detected by sensors outside the compressor system (eg public climate database, weather station, ambient air thermometer, or similar) and / or
    • Actuator positions and / or
    • Standby states of machines and / or
    • Operating conditions and / or
    • control variables
    include.
11. 11. The method according to any one of claims 1 to 10, characterized in that measured value and associated context information are stored together as a data pair.
12. 12. The method according to any one of claims 1 to 11, characterized in that as a further context information of the or the measured values and the superordinate state of the compressor system and / or individual components at the time of data acquisition is assigned.
13. 13. The method according to any one of claims 1 to 12, characterized in that the measured value also includes a time stamp.
14. 14. The method according to any one of claims 1 to 13, characterized in that it is checked in a Erstaufbereitungsschritt the measured value, whether the measured value including size type and unit is detected and, if not, the measured value in this first processing step size type and / or unit, in particular based on a stored initial model.
15. 15. The method according to any one of claims 1 to 14, characterized in that a history of initial models and / or a history of context assignments is stored to deposit which output models or which context associations were valid at any given time.
16. 16. A compressor system comprising a plurality of components, namely one or more compressors and one or more peripheral devices, and a control / monitoring unit,
    wherein the compressors (11, 12, 13) and peripheral devices (14 to 21) are arranged in a predetermined configuration,
    • wherein the control / monitoring unit (22) has a measured value acquisition unit (25) or cooperates with a measured value acquisition unit (25) which is designed to record measured values within the compressor installation or the components,
    • wherein control / monitoring unit (22) further comprises an allocation unit (26) or cooperates with an allocation unit (26) which is adapted to each of the detected measured values assign a context information to standardize the measured values
    • and wherein the control / monitoring unit (22) comprises an interface (27) to pass on the measured values standardized by the context information or to use them in subsequent control, monitoring, diagnosis or evaluation routines.

LIST OF REFERENCE NUMBERS

11, 12, 13

compressors

14, 15, 16

filter

17, 18

valves

19, 20

dryer

21

Compressed air storage

22

Control / monitoring unit

23

editor

24

storage section

25

Data acquisition unit

26

allocation unit

27

interface

28

pressure sensor

29

intake valve

30

airend

31

oil separator

32

air cooler

33

Oil circuit

34

thermovalve

35

oil cooler

36

cultivation dryer

37

entrance

38

exit

Claims (15)

Method for controlling and / or monitoring a compressor system comprising a plurality of components, namely one or more compressors (11, 12, 13) and one or more peripheral devices (14 to 21), and a control / monitoring unit (22),
wherein the compressors (11, 12, 13) and peripherals (14 to 21) are arranged in a particular configuration, wherein measured values are detected within the compressor installation or the components in a measured value acquisition step, wherein, in an association step, context information is assigned to the one or more measured values beforehand, simultaneously or after the measured value acquisition, in order to standardize the measured values, and - In a utilization step, the one or more standardized by the context information measured values are taken into account in a control, monitoring, diagnostic or Auswertroutine. A method according to claim 1, characterized in that the measured value detection step comprises the metrological direct detection of a measured value and / or the recourse to stored measured values. A method according to claim 2, characterized in that in the measured value detection step, the metrologically directly measured values in an associated database, which within the components in the Compressor system or externally implemented can be stored. Method according to one of claims 1 to 3, characterized in that the standardization of the measured value by assigning context information concretely includes the unique assignment of the location of a measured value acquisition and / or the medium to which the measured value relates. A method according to claim 4, characterized in that for the assignment of the location of the measured value detection and / or the medium to which the measured value relates, one or more output models of the concrete compressor system or comparable compressor systems and / or one or more output models of the concrete components or Comparable components are taken into account. Method according to one of claims 1 to 5, characterized in that at least immediately before or for the utilization step - the reading itself, - The assignment of the measured value to a context information or a measuring point and - the initial model, on the basis of which the context information or the measuring point are defined, are known and thus considered in the subsequent control, monitoring, diagnostic or Auswertroutine. A method according to claim 5 or 6, characterized in that the location of the measured value detection is defined in an output model of the compressor system, - where predefined measuring points are defined on individual non-linked components or - in which freely configurable measuring points can be defined on individual non-linked components or - are defined in the predefined measuring points with each other linked to a compressor system components or - In the freely configurable measuring points are defined within linked to a compressor system components. Method according to claim 5 or 6,
wherein the components of the compressor system each comprise a plurality of operatively connected elements (29 to 36), characterized in that the location of the measured value detection is defined in an initial model of the component (s), - where predefined measuring points are defined on individual non-linked elements or - in which freely configurable measuring points can be defined on individual non-linked elements or - are defined in the predefined measuring points when linked together to form a compressor unit elements or - In the freely configurable measuring points are defined within linked to a compressor unit elements. Method according to one of claims 1 to 8, characterized in that the assignment of a context information to a measured value via an assignment table. Method according to one of claims 1 to 9, characterized in that the measured values detected in the measured value detection step physical and / or logical variables, for example - Values detected by sensors within the compressor system or within the components and / or - Values recorded by sensors outside the compressor system (eg public climate database, weather station, ambient air thermometer, etc.) and / or - Actuator positions and / or - Standby states of machines and / or - Operating conditions and / or - controlled variables include. Method according to one of claims 1 to 10, characterized in that measured value and associated context information are stored together as a data pair. Method according to one of Claims 1 to 11, characterized in that, as further context information, the one or more measured values can also be assigned to the superordinate state of the compressor system and / or individual components at the time of the data acquisition. Method according to one of claims 1 to 12, characterized in that the measured value also includes a time stamp. Method according to one of claims 1 to 13, characterized in that the determination of the location of the measured value detection takes place either by - That the measured value is assigned a preconfigured measuring point on a component or on an element of a component, wherein a link of the component with other components or a combination of elements with other elements is not taken into account or by - That the measuring point is freely configurable on a component or on an element of a component, wherein a link of the component with other components or a connection of the component with other components is not taken into account or by - That the interconnection of the component via an output model of the compressor system or the interconnection of the elements via an output model of the component is known, so that the measured value is then assigned a preconfigured measuring point in this initial model. A compressor system comprising a plurality of components, namely one or more compressors and one or more peripheral devices, and a control / monitoring unit,
wherein the compressors (11, 12, 13) and peripheral devices (14 to 21) are arranged in a predetermined configuration, - wherein the control / monitoring unit (22) has a measured value acquisition unit (25) or cooperates with a measured value acquisition unit (25) which is designed to record measured values within the compressor system or the components, - wherein control / monitoring unit (22) further comprises an allocation unit (26) or cooperates with an allocation unit (26) which is adapted to each of the detected measured values assign a context information to standardize the measured values - And wherein the control / monitoring unit (22) comprises an interface (27) to pass on the standardized by the context information measured values or even use in subsequent control, monitoring, diagnostic or Auswertroutinen.

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