WO2016050599A1 - Procédé de détermination des besoins énergétiques d'une machine de production ou d'un système de production constitué de plusieurs machines de production et appareil adapté à la mise en œuvre du procédé - Google Patents

Procédé de détermination des besoins énergétiques d'une machine de production ou d'un système de production constitué de plusieurs machines de production et appareil adapté à la mise en œuvre du procédé Download PDF

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Publication number
WO2016050599A1
WO2016050599A1 PCT/EP2015/071977 EP2015071977W WO2016050599A1 WO 2016050599 A1 WO2016050599 A1 WO 2016050599A1 EP 2015071977 W EP2015071977 W EP 2015071977W WO 2016050599 A1 WO2016050599 A1 WO 2016050599A1
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WO
WIPO (PCT)
Prior art keywords
energy
production
computer
blocks
measuring device
Prior art date
Application number
PCT/EP2015/071977
Other languages
German (de)
English (en)
Inventor
Christian Mose
Nils Weinert
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2016050599A1 publication Critical patent/WO2016050599A1/fr

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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
    • G05B15/00—Systems controlled by a computer
    • G05B15/02—Systems controlled by a computer electric
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25368—Start group of motors, machines in sequence, power up, down sequence
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25387—Control sequences so as to optimize energy use by controlled machine
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25391—Start, stop sequence of different parts of machine, copier, textile, glass
    • 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
    • G05B2219/31414—Calculate amount of production energy, waste and toxic release

Definitions

  • the invention relates to a method for determining the energy requirement of a production machine.
  • a measured load profile of the energy consumption of the production machine during a production process is used.
  • the production process is part of a production process.
  • This can be understood as a production process in a broader sense, any sub-process that is relevant for the production of a product.
  • the load profile is examined for characteristic patterns of specific energy consumption. This assumes that the energy intake (for example, electrical, thermal or pneumatic) has certain characteristics that can be recognized as a pattern.
  • the patterns correspond to a mathematical description of this energy curve to be found.
  • the found characteristic pattern is then defined as an energy block.
  • the energy blocks are described by the time course of the energy consumption E in a relevant time interval I of the sample. Within the energy block, in other words, the energy intake E can be represented as a function of time, the time limits being defined by the time interval I.
  • the method can also be used within a production system consisting of several production machines. Here, the production machines are examined individually.
  • the invention also relates to a measuring device with which an energy requirement of a production machine in the specified manner can be determined.
  • the measuring device has a measuring device with a measuring interface, with which a measuring connection to the respective production machine can be generated, whose energy consumption is to be measured.
  • the meter has a measured value output at which the measured energy requirement can be output as a load profile.
  • a measuring device of the above-mentioned type is used to identify with an algorithm different operating conditions such as run-up, warm-up, waiting state, processing state or shutdown after the respective energy needs of these process conditions has been determined.
  • the measured load profile After analyzing the measured load profile, it can be divided into individual sections, which are defined as energy blocks, based on characteristic patterns.
  • energy blocks Within a power block, there is then a typical operating state of the production machine under consideration, wherein the energy block contains a mathematical model of the known pattern of the temporal course of the energy absorption within a certain interval I.
  • the absorption behavior of the energy E within each block can be mathematically modeled, for example, with power series.
  • a specific sequence of operating states of a defined production task can be created by means of the energy blocks.
  • energy blocks that have already been created, so that the measurement of the Load profile for the relevant production task is not required. Rather, the anticipated energy demand for this production task can be predicted relatively accurately by means of the energy blocks.
  • the detection of different operating states of a production machine can therefore take place once.
  • the associated expense is justified by the fact that the energy blocks determined can be used for later product planning processes in order to be able to plan capacity for the required energy requirement and also to be able to determine aspects of the environmental compatibility of the relevant production process.
  • the object of the invention is to rationalize the process of Er-position of energy blocks, so that this process can be carried out even during ongoing production and the associated effort is reduced. Moreover, it is an object of the invention to propose a measuring device for carrying out the method given above, with the more efficient creation of energy blocks is possible even during production.
  • This object is achieved according to the invention with the method specified at the outset by using a computer having a first data interface and a second data interface.
  • the load profile which is determined automatically with the aid of a measuring device during the real production process, can then be forwarded to the computer via the first data interface.
  • control commands of the production machine are also automatically passed on to the second data interface during the real production process.
  • the time intervals I for delimiting the energy blocks with each other are then determined automatically taking into account the control commands by the computer.
  • the time course of the energy intake E within the relevant time intervals I in the energy blocks can then be automated taking into account the load profile by the computer as a characteristic pattern be determined.
  • the already mentioned mathematical description models for the load profile for example, by series development such as Taylor series or power series are used.
  • control commands in parallel to the measured load profile advantageously makes it possible to determine the time intervals I simply and, above all, reliably. Even if the measured load profile can not be unambiguously assigned to specific operating states, for example due to operating conditions with strongly similar load profiles, no interpretation is possible a user of the measuring device necessary when the control commands are evaluated. In this case, the meaning of the respective control command must be determined as well as the time when the control command was implemented recorded. If the control commands are transmitted in a language that can be read by the production machine, then it is necessary for the computer that is used in the method according to the invention to generate the energy blocks to be able to decode the control commands. Otherwise, it may be necessary to transform the control commands into a computer-readable language. Alternatively, the above object is also achieved by a
  • Method for determining the energy requirement of a production system consisting of several production machines.
  • the measuring device is connected to one of these production machines.
  • the method may be performed in the manner described above to determine energy blocks for that production machine.
  • the measuring device can be connected to another production machine of the production system. This makes it possible to create energy blocks of this machine. In this way, the entire production system can be described by energy blocks, so that even complex production tasks of this production system can be estimated in terms of the required energy requirements. If there is a if the production task was to be solved, it would be advantageous to search for a favorable route for the production. Synergy effects can be used to save energy.
  • Peak loads can also be avoided, for example, by ensuring that process steps with high energy requirements do not take place simultaneously or that the number of parallel processes is reduced overall.
  • degrees of freedom available for the production process must be taken into account. This knowledge can be derived from the requirement profile for the product as well as for certain process steps.
  • the measuring device By using the measuring device for a plurality of production machines, it is possible to advantageously keep the component expenditure for creating the energy blocks small.
  • energy blocks Once energy blocks have been created for all production machines of the production system, they can be stored in a database, for example, and are available for later assessments of new production processes.
  • the measuring device can continue to be used for quality assurance in order to randomly check the individual production machines at regular intervals. For example, the energy requirement may increase due to wear during the lifetime of a specific production machine, so that the energy blocks must be corrected.
  • new production processes can be added that were not previously represented by energy blocks. These can be analyzed in the current production and described by new energy blocks.
  • the following improvements apply both to the method for determining the energy demand of a production machine and in production systems, since the assessment of production systems is carried out in a modular manner by examining individual production machines.
  • the production process of the production product is automatically passed on to the second data interface.
  • the computer then automatically performs an assignment of the energy blocks to the associated production parameters.
  • the advantage of this supplement of the invention is that even product-dependent production parameters can be taken into account when creating energy blocks.
  • a product-related energy optimization is possible by evaluating the energy blocks.
  • the energy consumption in a lathe can be variably determined depending on product parameters, which diameter and which height has a component to be machined. From this, the required processing time can be derived.
  • a prediction can be made as to how a variation of the production parameters would affect energy consumption.
  • the data may be stored in a database and appropriately linked for new production tasks.
  • the energy blocks are automatically assigned by the computer taking into account the control commands operating conditions of the production machine, which have caused the associated characteristic pattern of specific energy consumption. This advantageously simplifies planning of the anticipated energy requirement in subsequent production processes, since the energy blocks can be easily found and retrieved by selecting the operating states associated with the production process to be evaluated. Also, certain operating states of the production machine can be assigned several energy blocks that differ from each other in certain production parameters. Advantageously, it can also be provided that it is detected in each case when assigning the energy blocks to operating states, whether the length of the time interval I of the associated pattern is fixed or variable. Fixed Time intervals are z. For example, in plant-typical operating states, which must be run through in all production processes.
  • variable time intervals I occur because these energy blocks are dependent on the processing time of the component in question. These can, as described above for the example of turned components, be different for each production task.
  • the assignment of variable time intervals I advantageously makes it possible for once stored energy blocks of such production steps to be easily scaled to subsequent production tasks.
  • either the length of the time interval of the energy block is automatically set to variable if the time profile of the energy consumption of the associated characteristic pattern is constant. If the time profile of the energy consumption of the associated pattern is not constant, the length of the time interval I of the energy block is set equal to the measured length of the time interval I. Behind this assignment hides the realization that the energy consumption of the production machine is usually constant during a manufacturing step. On the other hand, these manufacturing steps may take shorter or longer depending on the component to be machined. Therefore, the assumption of a variable time interval I is more realistic. On the other hand, there are operating states of the production machine, such as switching on, starting up or shutting down, which always have the same time requirement and are associated with non-constant patterns of energy absorption. Here, for example, linear ramps are traversed. The respective time required for these operating states can therefore be recorded as fixed time intervals I.
  • Another possibility for deciding whether a time interval I of an energy block is to be varied by the computer. is to be set is that automatically set the time interval to variable by the computer, taking into account the control commands, if the time triggering of at least one control command of the relevant energy block is dependent on an incoming event.
  • This event can, for. B. the completion of a particular production step in a particular component. In the already given example of a rotating part, this event could be the end of the turning process. This could have already been determined in advance for a specific production step.
  • Another possibility is that a significant change in the forces on the turning tool is a triggering event for the completion of a particular production step.
  • Another possibility is, for example, the evaluation of a CAD data set, as used for example for additive manufacturing methods. Control commands are derived from these, which can also mean the end of a specific production step.
  • the object is achieved with the measuring device mentioned in the introduction according to the invention in that on the one hand this measuring device has a measuring device with a measuring interface, with which a measuring connection to the production machine can be generated.
  • This measuring device is used in the method specified in the implementation of the required measurement.
  • the measuring device also has a measured value output at which the measured energy requirement can be output as a load profile.
  • the measuring device additionally includes a computer which is coupled to the measured value output via a first data interface.
  • a program is installed on the computer, during the course of which the process steps of the method according to the invention which have already been described in detail above are run through.
  • the measuring device and the computer a Form building unit.
  • the measuring device and the computer are mounted together in a housing.
  • the summary of the measuring device and the computer in a structural unit advantageously facilitates the handling of the measuring device when carrying out the method according to the invention.
  • the measuring device can be used successively on different production machines of a production system. It is particularly advantageous if the assembly can be placed for this purpose at suitable interfaces of the individual production machines.
  • the handling is particularly simple if the unit is protected by a common housing. In this case, it can be advantageously avoided that malfunctions or contact problems occur during the contacting between computer and measuring device.
  • the assembly in the environment of the production system is optimally protected against negative influences.
  • FIG 1 shows an embodiment of the invention
  • FIGS. 2 to 4 show selected method steps of an exemplary embodiment of the method according to the invention.
  • FIG. 1 shows a production system 11 which consists of two production machines 12, 12 '. These production machines 12, 12 'are intended to indicate by way of example that a production system consists of different components, all of which are required, for example, for the production of a specific product.
  • To control the production system 11 are there controls 13.
  • the controls 13 are connected via signal lines 14a to the production machines 12, 12 '.
  • a power supply 15 is provided which supplies the production machines 12, 12 'with electrical energy via supply lines 16.
  • a database 17 with production parameters for the product to be produced is provided.
  • the database 17 is connected via signal lines 14b to the controllers 13 for the
  • Production machines 12, 12 ' connected, so that the controllers via the signal lines 14a depending on the receiving via the signal lines 14b production parameters control commands to the production machines 12, 12' can conduct.
  • a measuring device 18 whose system boundaries are indicated by a dot-dash line is used.
  • the measuring device 18 has a computer 19 which is connected to a measuring device 21 via a first data interface 20.
  • the measuring device 21 has a measuring interface 22 only indicated in FIG. 1, with which the energy intake via the supply lines 16 can be measured.
  • the measured values are processed in the computer 19.
  • production parameters which contribute to the control of the production machines 12 are also supplied to the second interface 23 of the computer 19 via a signal line 14d.
  • the computer 19 can thus correlate the load profile of the machine 12 determined by means of the measuring device 21 in time with the control commands of the controller 13 and, in addition, also take into account production parameters from the database 17.
  • the computer runs a program that allows the creation of energy blocks (more on this in the following).
  • the calculated energy blocks can be sent via data lines 40 in a memory 25 stored or energy blocks stored there can be retrieved from the memory by the computer again.
  • the results found can be output via a display 26 connected to a data line 41.
  • the meter 18 may also be used in the production system 11 to generate energy blocks for another production machine 12. Dashed lines show how the measuring interface 22 is connected to another supply line 16. In the same way, a signal line 14e (also shown in dashed lines) must ensure that the control signals from the controller 13 of the production machine 12 'to be measured can be evaluated by the computer 19. Here, the already described second data interface 23 is used.
  • FIG. 2 shows a load profile 27 which results directly from the measuring signal which generates the measuring device 21 from FIG. It thus shows the power consumption of the production machine 12 as a function of time.
  • arrows indicate control commands 28, which are made available to the computer via the second data interface 23. The time sequence of these control commands 28 is also known.
  • the production machine is an apparatus for laser melting, with which components can be produced by means of an additive manufacturing process.
  • the control commands are designated by the letters a to h and contribute to the process flow in the production machine 12 as follows. a) System startup
  • control commands 28 are used to divide the load profile 27 into individual sections 29, since the evaluation of the control commands 28 defines unambiguous phases of the process sequence.
  • sections 29 certain patterns 30 of energy consumption can be identified, wherein FIG. 3 shows that certain patterns are repeated.
  • the patterns A to H with the following meanings.
  • FIG. 4 shows how a mathematical description of the energy consumption E of the production machine 12 results from the sections 29. This is derived directly from the patterns 30. This results in the energy blocks 1 to 6, resulting in the following relationship between the sections of Figure 3 and the energy blocks of Figure 4.
  • time intervals I are defined, which over the possible duration of the energy blocks Give information.
  • production parameters P are evaluated, which show which interval lengths had to be selected on the basis of product-specific requirements. These interval lengths are set to variable in the energy blocks 2, 3 and 5, so that these energy blocks can also be used for other products with different production parameters.
  • production planning by evaluating the production parameters, a probable interval length can then be taken into account for the application in question.
  • the variable interval lengths are indicated in Figure 4 with a dotted double arrow.
  • interval lengths that are fixed because they are machine specific. This includes, for example, the system start 1 or the production start 4 or the end of production 6 of the laser treatment. These intervals remain the same regardless of the product produced, so that the associated energy blocks can be assigned a fixed interval length for the time interval I.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • General Factory Administration (AREA)

Abstract

L'invention concerne un procédé de détermination des besoins énergétiques d'une machine de production (12) ou d'un système de production (11), lequel est constitué de plusieurs machines de production (12, 12'). L'invention concerne en outre un appareil de mesure (18) servant à déterminer les besoins énergétiques de machines de production. Selon l'invention, l'appareil de mesure (18) évalue des valeurs de mesure d'un dispositif de mesure (21), mais en plus des instructions de commande pour la machine de production (2), lesquelles sont transmises par une commande (13), sont évaluées dans un calculateur (19). En outre, des paramètres de production, lesquels ont également été évalués, peuvent être transmis à partir d'une base de données (17). De cette manière, il est possible de mettre en œuvre de manière avantageuse un calcul automatisé de blocs d'énergie, qui peuvent être mis en mémoire dans une base de données (25). Les blocs d'énergie, qui indiquent la consommation d'énergie de la machine de production (12) par certains intervalles de temps définis, servent à pouvoir estimer avec fiabilité la consommation d'énergie de la machine de production (12), les blocs d'énergie permettant également une planification de la fabrication. L'automatisation de l'élaboration des blocs d'énergie permet de manière avantageuse d'intégrer le procédé dans la production en cours.
PCT/EP2015/071977 2014-09-30 2015-09-24 Procédé de détermination des besoins énergétiques d'une machine de production ou d'un système de production constitué de plusieurs machines de production et appareil adapté à la mise en œuvre du procédé WO2016050599A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014219771.6A DE102014219771A1 (de) 2014-09-30 2014-09-30 Verfahren zum Ermitteln des Energiebedarfs einer Produktionsmaschine oder eines aus mehreren Produktionsmaschinen bestehenden Produktionssystems sowie zur Durchführung des Verfahrens geeignetes Messgerät
DE102014219771.6 2014-09-30

Publications (1)

Publication Number Publication Date
WO2016050599A1 true WO2016050599A1 (fr) 2016-04-07

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WO (1) WO2016050599A1 (fr)

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
DE102021117244A1 (de) * 2021-07-05 2023-01-05 Schaeffler Technologies AG & Co. KG Produktionsanlage und Verfahren zum Betrieb einer Produktionsmaschine
DE102022122903A1 (de) 2022-09-09 2024-03-14 Krones Aktiengesellschaft Verfahren zur Überwachung von Medienverbräuchen in einer Abfülllinie und Vorrichtung zum Ausführen des Verfahrens

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120123600A1 (en) * 2010-11-16 2012-05-17 International Business Machines Corporation Smart energy consumption management
WO2013143585A1 (fr) * 2012-03-28 2013-10-03 Siemens Aktiengesellschaft Procédé et dispositif d'aide à la constitution d'une séquence de commande à bon rendement énergétique
US20130282415A1 (en) * 2010-11-29 2013-10-24 Omron Corporation Production management device, production management system, method of controlling production management device, control program, and recording medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120123600A1 (en) * 2010-11-16 2012-05-17 International Business Machines Corporation Smart energy consumption management
US20130282415A1 (en) * 2010-11-29 2013-10-24 Omron Corporation Production management device, production management system, method of controlling production management device, control program, and recording medium
WO2013143585A1 (fr) * 2012-03-28 2013-10-03 Siemens Aktiengesellschaft Procédé et dispositif d'aide à la constitution d'une séquence de commande à bon rendement énergétique

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