System and method for calculating a productivity of an industrial installation
First Claim
1. A method for determining the productivity of an industrial installation including a plurality of installation modules:
- providing a computer system;
forming a layout model of the industrial installation for the production of at least one end product, wherein the layout model includes the plurality of installation modules and linkage elements configured to produce the at least one end product;
storing a Markov model for each of the plurality of installation modules on said computer system, said Markov model indicating, for operating states of the relevant installation module with a different productivity, probabilities of the relevant installation module being in the different operating states and transition rates of state changes between the operating states of the relevant installation module,calculating a Cartesian product from a first Markov model of a first installation module and from a second Markov model of a second installation module linked with the first installation module within the layout model of the industrial installation or of a sub-installation linked with the first installation module within the layout model of the industrial installation, said Cartesian product indicating, for operating states of a combined sub-installation including the two linked installation modules or of the sub-installation linked with the first installation module, probabilities of the combined sub-installation being in different operating states and transition rates of state changes between the operating states of the combined sub-installation, wherein the calculated Cartesian product is subsequently reduced to a Markov model of the combined sub-installation by those operating states of the calculated Cartesian product which have the same productivity being combined to form one operating state,carrying out progressively, the calculation of the Cartesian product and the subsequent reduction thereof until the sub-installation forms the entire layout model of the industrial installation such that the productivity of the industrial installation with respect to the at least one end product can be determined; and
forming the physical industrial installation based on the layout model, calculations, and subsequent reductions.
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Abstract
A method and a system for calculating a productivity of an industrial system consisting of system modules is provided. A Markov model is stored for each system module, the Markov model indicating the probabilities that a system module is in different operating states and indicating transition rates of state changes between the operating states of the respective system module for each operating state of the respective system module with a different productivity. A Cartesian product is calculated from a first Markov model of a first system module and from a second Markov model of a second system module linked to the first system module. The calculated Cartesian product is then reduced to a Markov model of the combined sub-system. The calculation of the Cartesian product and the subsequent reduction are carried out successively until the combined sub-system forms the entire industrial system.
3 Citations
16 Claims
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1. A method for determining the productivity of an industrial installation including a plurality of installation modules:
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providing a computer system; forming a layout model of the industrial installation for the production of at least one end product, wherein the layout model includes the plurality of installation modules and linkage elements configured to produce the at least one end product; storing a Markov model for each of the plurality of installation modules on said computer system, said Markov model indicating, for operating states of the relevant installation module with a different productivity, probabilities of the relevant installation module being in the different operating states and transition rates of state changes between the operating states of the relevant installation module, calculating a Cartesian product from a first Markov model of a first installation module and from a second Markov model of a second installation module linked with the first installation module within the layout model of the industrial installation or of a sub-installation linked with the first installation module within the layout model of the industrial installation, said Cartesian product indicating, for operating states of a combined sub-installation including the two linked installation modules or of the sub-installation linked with the first installation module, probabilities of the combined sub-installation being in different operating states and transition rates of state changes between the operating states of the combined sub-installation, wherein the calculated Cartesian product is subsequently reduced to a Markov model of the combined sub-installation by those operating states of the calculated Cartesian product which have the same productivity being combined to form one operating state, carrying out progressively, the calculation of the Cartesian product and the subsequent reduction thereof until the sub-installation forms the entire layout model of the industrial installation such that the productivity of the industrial installation with respect to the at least one end product can be determined; and forming the physical industrial installation based on the layout model, calculations, and subsequent reductions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A planning software tool having a computer readable hardware storage device having computer readable program code stored therein for planning an industrial installation, said program code having instructions carrying out a method for determining the productivity of an industrial installation including a plurality of installation modules:
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providing a computer system; forming a layout model of the industrial installation for the production of at least one end product, wherein the layout model includes the plurality of installation modules and linkage elements configured to produce the at least one end product; storing a Markov model for each of the plurality of installation modules on said computer system, said Markov model indicating, for operating states of the relevant installation module with a different productivity, probabilities of the relevant installation module being in the different operating states and transition rates of state changes between the operating states of the relevant installation module, calculating a Cartesian product from a first Markov model of a first installation module and from a second Markov model of a second installation module linked with the first installation module within the layout model of the industrial installation or of a sub-installation linked with the first installation module within the layout model of the industrial installation, said Cartesian product indicating, for operating states of a combined sub-installation including the two linked installation modules or of the sub-installation linked with the first installation module, probabilities of the combined sub-installation being in different operating states and transition rates of state changes between the operating states of the combined sub-installation, wherein the calculated Cartesian product is subsequently reduced to a Markov model of the combined sub-installation by those operating states of the calculated Cartesian product which have the same productivity being combined to form one operating state, carrying out progressively, the calculation of the Cartesian product and the subsequent reduction thereof until the sub-installation forms the entire layout model of the industrial installation such that the productivity of the industrial installation with respect to the at least one end product is determined; and forming the physical industrial installation based on the layout model, calculations, and subsequent reductions.
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15. A system for calculating a productivity of an industrial installation including a plurality of installation modules, comprising:
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a database, in which a Markov model is stored for each of the plurality of installation modules, said Markov model indicating, for operating states of the relevant installation module with a different productivity, probabilities of the relevant installation module being in the different operating states and transition rates of state changes between the operating states of the relevant installation module, and which a layout model of the industrial installation is stored, wherein the layout model includes the plurality of installation modules and linkage elements configured to produce at least one end product; and a calculator, which calculates a Cartesian product from a first Markov model of a first installation module and from a second Markov model of a second installation module linked with the first installation module within the layout model of the industrial installation or of a sub-installation linked with the first installation module within the layout model of the industrial installation, said Cartesian product indicating, for operating states of a combined sub-installation including the two linked installation modules or of the sub-installation linked with the first installation module, probabilities of the combined sub-installation being in different operating states and transition rates of state changes between the operating states of the combined sub-installation, wherein the calculated Cartesian product is subsequently reduced to a Markov model of the combined sub-installation by those operating states of the calculated Cartesian product which have the same productivity being combined to form one operating state, wherein the calculation of the Cartesian product and the subsequent reduction thereof are carried out progressively until the combined sub-installation forms the entire industrial installation; and an output of the entire industrial installation indicating the productivity of the industrial installation with respect to the at least one end product.
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16. An industrial installation comprising an installation controller which controls installation components of the industrial installation depending on productivities which are calculated with regard to end products of the industrial installation by a system for calculating a productivity of an industrial installation including a plurality of installation modules, comprising:
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a database, in which a Markov model is stored for each of the plurality of installation modules, said Markov model indicating, for operating states of the relevant installation module with a different productivity, probabilities of the relevant installation module being in the different operating states and transition rates of state changes between the operating states of the relevant installation module, and which a layout model of the industrial installation is stored, wherein the layout model includes the plurality of installation modules and linkage elements configured to produce at least one end product and a calculator, which calculates a Cartesian product from a first Markov model of a first installation module and from a second Markov model of a second installation module linked with the first installation module within the layout model of the industrial installation or of a sub-installation linked with the first installation module within the layout model of the industrial installation, said Cartesian product indicating, for operating states of a combined sub-installation including the two linked installation modules or of the sub-installation linked with the first installation module, probabilities of the combined sub-installation being in different operating states and transition rates of state changes between the operating states of the combined sub-installation, wherein the calculated Cartesian product is subsequently reduced to a Markov model of the combined sub-installation by those operating states of the calculated Cartesian product which have the same productivity being combined to form one operating state, wherein the calculation of the Cartesian product and the subsequent reduction thereof are carried out progressively until the combined sub-installation forms the entire industrial installation; and an output of the entire industrial installation indicating the productivity of the industrial installation with respect to the at least one end product.
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Specification