EP1877969A2 - Procede et systeme de planification corrective et d'optimisation de processus de traitement - Google Patents

Procede et systeme de planification corrective et d'optimisation de processus de traitement

Info

Publication number
EP1877969A2
EP1877969A2 EP06724601A EP06724601A EP1877969A2 EP 1877969 A2 EP1877969 A2 EP 1877969A2 EP 06724601 A EP06724601 A EP 06724601A EP 06724601 A EP06724601 A EP 06724601A EP 1877969 A2 EP1877969 A2 EP 1877969A2
Authority
EP
European Patent Office
Prior art keywords
product
quality information
quality
further processing
optimization
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP06724601A
Other languages
German (de)
English (en)
Inventor
Marco Fahl
Liro Harjukoski
Simo Saynevirta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Technology AG
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1877969A2 publication Critical patent/EP1877969A2/fr
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • G06Q10/043—Optimisation of two dimensional placement, e.g. cutting of clothes or wood
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling

Definitions

  • the invention relates to a method and a system for corrective planning and optimization of processing processes in a technical plant operation, in particular a finishing ungsbetheb in the paper industry.
  • a needs-based optimization of the respective processing process is carried out and achieved, which is preferably a division or segmentation process, in particular the blank of the respective intermediate product .
  • the manufacturing process passes through several production stages, each with appropriate intermediate or output products.
  • At least one of these intermediate or starting products is often present in rolls, that is, in the form of tapes or webs wound on reels, reels or spools, which are also referred to as "coils”, “reels” or “jumbo reels”, or is produced as a plate product, in the form of comparatively large-scale or large-format plates, for example in steel and / or metal processing.
  • An essential aspect of the processing and / or further processing of such rolls or plates forms their needs-based division and their needs-tailored cut.
  • usually wound on coils or rolls webs are handled, based on a predetermined production plan in divided smaller units or segmented and rewound according to their division again to suitable, usually smaller rolls of tape.
  • the predetermined production plan, or schedule is based essentially on the respective requirement, that is, on the existing orders and the associated customer-specific requirements, in particular with regard to dimension, quantity and / or number and quality of the respective product. The same applies, of course, also for the cutting of plates.
  • a disadvantage of known systems and methods of the predetermined production plan once it is created, not automatically modifiable and / or customizable during ongoing production.
  • the planning of the division of the band, or the respective intermediate product takes place at a time when the intermediate product has not yet been produced and at which there is no information about its quality and nature.
  • quality and / or quality specifications can be partially taken into account during a revision of the initial product planning by means of manual inputs, automation of this decision-making process is generally not given.
  • the object of the invention is to provide a way to improve the efficiency of a plant operation in the processing of rolls or sheets, to optimize the processing process and thus reduce the rejects and / or the amount of manufactured goods of inferior quality.
  • the invention relates to a method for corrective planning and optimization of processing processes in a technical plant operation, in particular in the paper industry, the pulp industry, the metalworking industry, the steel industry or the chemical industry.
  • a predetermined production plan by processing quality specifications and / or quality information of at least one output product of an upstream production stage, as well as on the basis of existing product requirements, a demand-oriented optimization of the respective processing and / or further processing process is automatically carried out, wherein the respective processing preferably involves cutting or the segmentation or division of roll or plate goods.
  • the method according to the invention can advantageously be used in particular if, during the processing and / or further processing, a division and / or segmentation of the at least one starting product of the upstream production stage or of the at least one intermediate product is carried out.
  • the starting product of the upstream production stage may be, for example, rolled goods wound on a roll or a spool, in particular paper, cardboard, cellulose, fabric, carpet, steel, sheet steel, plastic film or polymer film. But even with appropriate plate goods, such as iron and / or steel plates, but also wood, plastic or glass plates, the aforementioned method is advantageous for optimizing the respective further processing process, in particular the cutting process and the determination of the necessary pattern can be used.
  • the reference variables used are in particular the length and width specifications of each unwound strip.
  • the respective length specification can be determined, for example, over the time and the winding speed of the roller or the running speed of the belt.
  • the information and information obtained are collected and stored on a data medium and / or in a database established for this purpose.
  • the quality assurance system and / or the sensory monitoring system can advantageously be optical sensors, electro-optical sensors, capacitive and / or inductive sensors and / or tactile sensors, chemical sensors, sensors for thickness, length and width measurement, that is, for dimension determination, Sensors for determining the roughness and / or surface finish include. Vorgenante sensors are freely combinable with each other and accordingly also combined and / or readable.
  • the sensor data in relation to the unwound tape are spatially resolved and determined in a positionally accurate manner and stored correspondingly retrievably, for example in a database set up for this purpose and / or on a data carrier set up for this purpose.
  • the number, density and arrangement of similar sensors and their sampling rate essentially determine the spatial resolution.
  • the resolution and accuracy of the single sensor essentially determines the positional accuracy.
  • Laboratory analyzes can advantageously also be used as a further data source, whereby spatially resolved quality information and / or quality data are obtained by random analyzes, in particular also chemical analyzes, in a laboratory equipped for this purpose and / or an analysis device set up for this purpose and / or stored retrievably in a correspondingly established database.
  • the needs-based optimization of the respective further processing process takes place in at least two dimensions, that is to say that at least two dimensional details, namely, for example, length and width data of the starting product are taken into account in the optimization.
  • This means that an optimization of the further processing process of the produced strip or plate product to be carried out in accordance with the method is carried out both in the longitudinal direction, that is to say in the lengthwise direction, and in the transverse direction, that is, in the widthwise direction.
  • the predetermined production plan is automatically adapted to the demand-optimized processing or further processing process and / or the demand-optimized further processing process for the implementation and further processing of the respective starting or intermediate product is automated to the control or process system of respective plant operation transmitted and / or impressed on this.
  • a computer program for execution on a correspondingly equipped data processing device having the features of the method according to the invention leads to a preferred embodiment of the system according to the invention.
  • a computer program, in particular a computer program stored on a data carrier, which has the features of the method according to the invention, is therefore expressly included in the disclosure content of the present application.
  • Fig. 1 Exemplary blank of a large-sized roll of tape
  • FIG. 2 Exemplary embodiment of a system according to the invention
  • FIG. 3 Exemplary embodiment of a method according to the invention
  • Fig. 1 the segmentation or the blank 8 of a wound on a large-sized roll of tape 1 tape in several, here a total of five narrower bands 2a, 3a, 4a, 5a, 6a shown, in turn, again to tape rolls 2b, 3b, 4b, 5b 6b smaller format are wound up.
  • the division of the originally large-sized roll of tape is 1-dimensional, that is, in only one direction.
  • the cutting edges are parallel to the direction of the tape and thus perpendicular to the roll axis.
  • the result of the blank 8 gives the impression of dividing the large-sized roll 1 into individual sheets 2b, 3b, 4b, 5b, 6b of different thickness.
  • the system shown here for optimizing the respective processing and / or further processing process here the cutting of a large-format paper roll, also referred to as "jumbo reel"
  • the data processing device 80 set up for this purpose cooperates with a first data source 15, here a combined quality assurance and monitoring system. in order to ascertain condition details 13 and quality information 14 of the large-format paper tape roll 1 with spatial resolution and position accuracy. Furthermore, according to the system, at least one data memory 12 is provided, on which the determined quality data 13 and quality information 14 of the large-sized paper tape roll 1 are temporarily stored.
  • the combined quality assurance and monitoring system of the first data source 15 advantageously comprises optical sensors, electro-optical sensors, capacitive and / or inductive sensors and / or tactile sensors, chemical sensors, sensors for thickness, length and width measurement and sensors for position determination, sensors for determining the roughness and / or the surface condition of the wound paper tape or the paper web.
  • Vorgenante sensors are freely combinable with each other and therefore also used in combination and readable.
  • the determined sensor data in relation to the unwound paper tape or the unwound paper web are advantageously spatially resolved and positionally accurate storage and retrievable.
  • the data memory 12 and the intermediate storage of quality data 13 and quality information 14 is optional and allows, for example, post-processing of the respective data sets, for example by means of appropriate filtering and / or selection functions and / or processing functions, for example, to reduce or limit the amount of data or the amount of data.
  • a post-processing unit 19 is advantageously providable.
  • At least one interface 21 is also provided, which, when accessing the data memory 12, stores the temporarily stored quality data 13 and quality information 14, as well as possibly in cooperation with a second one Data source 16 further information, here analysis information 17 an analysis device, as well as access to the predetermined production plan customer-specific product requirements 18 is detected, collected and forwarded to a processing unit 31.
  • the aforementioned data sources 15, 16 can be quality assurance systems and / or sensory monitoring systems, but also measuring and / or analysis devices. Also, a data memory 12 and / or a database, in or on which the corresponding information was stored retrievable, can act as a data source.
  • the processing unit 31 causes quality information 14, quality data 13 and analysis information 17 to be compared and evaluated spatially resolved with the respective customer-specific product requirements or the customer-specific product requirements.
  • the evaluation of the determined comparative information takes place with regard to the respective product value, so that the valency of each product can be specified and / or imaged as a function of its respective position or arrangement within the paper strip of the large-format paper tape roll.
  • Each customer-requested product is simulated with regard to its respectively required quality and / or quality, and corresponding quality grades, for example quality A, quality B and scrap, are defined.
  • the processing unit 31 causes a simulated scanning of the large-sized roll of tape 1 and the wound paper tape in terms of the aforementioned quality grades, that is, the detected quality information 14 and texture 13 of the large-sized roll of tape 1, which is also referred to as a drum or "jumbo reel" are spatially resolved compared with the quality grades formed, resulting in that wound on the large-sized roll 1 Paper tape is divided into individual quality zones, namely, for example quality zones A, quality B or rejects. In this case, it is advantageously possible to provide for the aforesaid procedure to be carried out on several or all finished starting products of the upstream production stage, in this case large-sized ribbon rolls.
  • the processing unit 31 uses the present comparative information and present evaluation results to generate an optimization model according to the specification and automatically prepares a solution proposal corresponding to the respective optimization model, by means of which the respective further processing process is optimized as needed.
  • the processing unit 31 thereby optimizes the further processing process, in this case the blank of the paper tape of the large-sized roll 1 in at least two dimensions, that is, the further processing is performed by the processing unit 31 both in the axial direction of the tape roll and in the direction or longitudinal direction of the tape.
  • At least one interface is provided, which transmits the optimized further processing process for conversion to, for example, the MES (Manufacturing Execution System) and / or the control system of the respective plant operation.
  • MES Manufacturing Execution System
  • the system for communication with data sources 15,16 and / or control and / or control systems and / or data storage 12 and / or access to the predetermined production plan 18 several separate interfaces or at least one multi-functional interface 21 providable.
  • FIG. 3 an exemplary embodiment of the method according to the invention is shown, wherein the need-based optimization of the further processing process, here the cutting of a large paper roll or pulp, starting from a predetermined production schedule 18, automated processing of quality information 13 and / or quality information 14 at least one starting product an upstream production stage, here at least a large-sized paper or paper roll 1, and based on existing product requirements 18 automated needs-based optimization of the respective finishing process, namely the blank, optimized by demand redistributing the role and / or needs-optimized redefinition of the pattern of large-sized paper tape roll is performed ,
  • the need-based optimization of the further processing process here the cutting of a large paper roll or pulp, starting from a predetermined production schedule 18, automated processing of quality information 13 and / or quality information 14 at least one starting product an upstream production stage, here at least a large-sized paper or paper roll 1, and based on existing product requirements 18 automated needs-based optimization of the respective finishing process, namely the blank, optimized by demand redistributing the role and / or needs
  • the needs-based optimization is carried out according to the method in several steps, in a first step 10, in cooperation with a first data source 15, here a combined quality assurance and monitoring system, quality specifications 13 and quality information 14 of at least one large-sized paper tape roll 1 spatially resolved and determined positionally accurate and cached on a data memory 12.
  • the reference variables used here are the length and width specifications of the respective band.
  • the respective length specification can be determined over time and winding speed or running speed.
  • the combined quality assurance and monitoring system 15 advantageously comprises optical sensors, electro-optical sensors, capacitive and / or inductive sensors and / or tactile sensors, chemical sensors, sensors for thickness, length and width measurement and sensors for position determination, sensors for Determining the roughness and / or the surface condition of the wound paper tape or the paper web.
  • Vorgenante sensors are freely combinable with each other and therefore also used in combination and readable.
  • the determined sensor data in relation to the unwound paper tape or the unwound paper web are advantageously spatially resolved and positionally accurate storage and retrievable.
  • the temporary storage of quality data 13 and quality information 14 on a data memory 12 carried out in the first step 10 is optional and allows the possibility of postprocessing of the respective data sets, for example by means of appropriate filter and / or selection functions and / or processing functions, for example, the data volume or the To reduce or limit the amount of data.
  • a corresponding post-processing of the stored information and information is advantageously carried out by means of a post-processing unit 19 in an intermediate step 11.
  • a second step 20 in the access to the data memory 12, the cached texture data 13 and quality information 14, and optionally in conjunction with a second data source further information, here analysis information 17 an analysis device 16, and access to the predetermined production plan customer specific product requirements 18 detected and collected.
  • the aforementioned data sources 15, 16 can be quality assurance systems and / or sensory monitoring systems, but also measuring systems. and / or analysis facilities. Also, a data memory 12 and / or a database, in or on which the corresponding information was stored retrievable, can act as a data source.
  • the acquired data is then processed in such a way that quality information 14, quality data 13 and analysis information 17 are spatially resolved and compared with the respective customer-specific product requirements or the customer-specific product requirements.
  • the evaluation of the determined comparative information takes place with regard to the respective product value, so that the valency of each product can be specified and / or imaged as a function of its respective position or arrangement within the paper strip of the large-format paper tape roll.
  • the comparison and the evaluation can be carried out, for example, in such a way that each customer-requested product is simulated with regard to its respectively required quality and / or quality and corresponding quality grades, for example quality A, quality B and scrap, are formed.
  • the large-sized roll of tape 1 and the wound paper tape are simulated in terms of the aforementioned quality grades sampled, that is, the detected quality information 14 and quality specifications 13 of the large-sized reel 1 (jumbo reel) are spatially resolved compared with the quality grades formed, so that resulting on the large format roll 1 wound paper tape into individual quality zones (quality A, quality B, scrap) is divisible.
  • a product is understood here to mean both the tailor-made tape cut to form a roll and the unwound tape.
  • an optimization model is generated on the basis of the present comparison information and available evaluation results, depending on the task, in a fourth step 40, and in a fifth step 50 a solution proposal for the respective optimization task is automatically developed and the respective further processing process is optimized as needed.
  • the optimization task or an optimization model corresponding to this task can be realized or implemented by way of example with a mathematical description based on a linear model with corresponding objective function, wherein the linear model has variables, in particular binary variables, which the arrangement of each product within the respective large format Specify role or within the unwound tape of the large-sized role and thus, specify the further processing process determining pattern.
  • the linear model may follow a discrete or continuous formulation approach.
  • the large-format strip roll or the unwound strip of the roll is geometrically divided by means of a network of equidistant discretization points or subdivided into discrete sections.
  • a logical variable is assigned the value "true” if it corresponds to the pattern of the left-hand corner of one of the tape rolls to be produced; otherwise, it is assigned the value "false”.
  • the relevant rules of the discrete formulation approach are:
  • Each roll to be produced should correspond to a reserved area of the large-format roll of tape
  • the width of the respective area is determined by the dimension of the roll to be produced
  • Each area should be assigned to a quality zone, with the allocation being determined by the center of the area.
  • An essential advantage of the generic method is due, inter alia, to the fact that it is possible to assign the position of each strip to be produced to a roll of a quality zone of the respective large-format strip roll and to determine the respectively resulting yield and / or the yield.
  • Step 30 can be determined directly.
  • the respective optimization task can be a mixed integer linear
  • MILP Mated Integer Linear Programming
  • the fifth step 50 automates, for example by solving the corresponding mixed integer linear programming task.
  • Solution methods and applications based thereon for the solution of mixed integer programming tasks are already well known, so here is a more detailed explanation of these methods can be waived.
  • Such applications can be invoked by way of example via either a C / C ++ library or special modeling interfaces.
  • the optimization model can be oriented to the specific task of minimizing the reject rate and / or maximizing product quality and / or maximizing the profit that can be achieved.
  • other optimization goals can also be modeled by means of the objective function.
  • a possible efficient solution approach is to proceed in two stages, namely by means of the discrete formulation approach and a rather coarse discretization network, first of all the optimization problem in one dimension, namely in the width of the large format Tape roll, that is, to solve in the direction of the roll axis, then hold the determined roles or determined in this way division of the large-sized roll of tape and by means of the continuous formulation approach and the determined width distribution in the direction of the roll axis in a second stage an exact solution of the optimization model in one To determine dimensions.
  • a corresponding procedure for the solution of the optimization model in the second dimension namely in the longitudinal direction of the large-sized band, that is, applied perpendicular to the roller axis.
  • the recorded division and / or the recorded patterns in the longitudinal direction of the strip of the large-sized roll that is, subjected to an optimization process with respect to the longitudinal coordinate of their starting position again perpendicular to the roll axis.
  • Both aforementioned optimization stages are advantageously executable either sequentially or simultaneously, depending on the respective available resources, the allowed processing time and the processing instructions and boundary conditions to be observed.
  • the order of the optimization stages is advantageously also reversible, so that, for example, initially also an optimization perpendicular to the roll axis and then parallel to the roll axis can be done.
  • an optimization of the sequence of individual, predetermined by the production schedule marker sequences and then then parallel to the roll axis optimization within the respective sequence can be achieved so also perpendicular to the roll axis.
  • an optimization in a third dimension can be provided by way of a corresponding procedure, for example if several layers or layers of a strip product are produced and / or wound up at the same time, so that appropriate thickness or depth information or layer information can also be taken into account in the need-based optimization.
  • the aforementioned procedure makes it possible to determine an almost exact solution of the task or of the generated optimization model and thus to carry out a needs-based optimization of the respective further processing process in only a few seconds of processing time.
  • a sixth step 60 the determined optimization solution and thus the optimized further processing process is transferred for implementation to, for example, the MES (Manufacturing Execution System) and / or the control system of the respective plant operation.
  • MES Manufacturing Execution System
  • a quality index A, B or C can be assigned to each discretized section of the large-format strip roll.
  • the optimization by means of a discrete formulation approach initially takes place in one dimension and represents only an intermediate stage of the entire optimization process.
  • Fig. 5 in a process according subdivision or a corresponding blank of a large-sized roll of tape in individual smaller units or segments of different width and length in the qualities A and B shown. The optimization was carried out here completely and took place both in the length, along the unwound strip, as well as in its width, that is, along the tape roll axis.

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Abstract

L'invention concerne un procédé et un système de planification corrective et d'optimisation de processus de traitement et/ou de transformation ultérieure dans des installations techniques, notamment dans l'industrie du papier. Le système comprend des moyens pour, sur la base d'un plan de production (18) défini, par le traitement de données qualitatives (13) et/ou d'informations relatives à la qualité (14) d'au moins un produit de départ d'un niveau de production situé en amont, réaliser une optimisation adaptée aux procédés et aux besoins du processus correspondant de transformation ultérieure.
EP06724601A 2005-05-04 2006-04-27 Procede et systeme de planification corrective et d'optimisation de processus de traitement Ceased EP1877969A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021337A DE102005021337A1 (de) 2005-05-04 2005-05-04 System und Verfahren zur korrigierenden Planung und Optimierung von Verarbeitungsprozessen
PCT/EP2006/003906 WO2006117124A2 (fr) 2005-05-04 2006-04-27 Procede et systeme de planification corrective et d'optimisation de processus de traitement

Publications (1)

Publication Number Publication Date
EP1877969A2 true EP1877969A2 (fr) 2008-01-16

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EP06724601A Ceased EP1877969A2 (fr) 2005-05-04 2006-04-27 Procede et systeme de planification corrective et d'optimisation de processus de traitement

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US (1) US8364303B2 (fr)
EP (1) EP1877969A2 (fr)
CN (1) CN101133428B (fr)
DE (1) DE102005021337A1 (fr)
HK (1) HK1117620A1 (fr)
WO (1) WO2006117124A2 (fr)

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CN112859754B (zh) * 2019-11-28 2022-06-17 智能云科信息科技有限公司 机床加工控制方法、装置、存储介质、边缘设备及服务器
CN111861236B (zh) * 2020-07-27 2023-10-27 东北大学 一种棒材精整工艺数据同步方法
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WO2006117124A8 (fr) 2007-05-24
WO2006117124A2 (fr) 2006-11-09
DE102005021337A1 (de) 2006-11-16
CN101133428A (zh) 2008-02-27
HK1117620A1 (en) 2009-01-16
US20100004771A1 (en) 2010-01-07
CN101133428B (zh) 2014-09-17
US8364303B2 (en) 2013-01-29

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