Authors: None

Abstract:

Keywords:

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.90001

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: ---

Authors: Bakhtadze, Natalia N.; Kulba, Vladimir V.; Yadykin, Igor B.; Lototsky, Vladimir A.; Maximov, Evgeny M.

Abstract: The topicality of the problem of power generating facility identification is justified against the background of European and Russian power grids interconnection. Intelligent control techniques for power generation states is presented. A technology for estimating the dynamics of power grid's generating facilities participation in overall primary frequency regulation in contingencies is developed based on frequency and generating capacity time series. Process identification algorithms based on virtual models design using process data archives and knowledge bases are discussed. Associative search methods are used for identification algorithms development.

Keywords: generating facility identification,knowledgebase,associative search models,soft sensors

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00003

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 1-8

Authors: Nawarecki, Edward; Kozlak, Jarosław

Abstract: In this paper, a model of a multi-agent system for modelling and optimising supply chains will be presented. The most popular methodologies of developing multi-agent systems and selected applications of the agent approach to modelling and optimisation of supply chains is described in brief. We also present a pilot realisation of such a system, together with a selection of the subsequent experimental results obtained.

Keywords: multi-agent systems,multi-agent methodologies,supply-chain management

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00004

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 9-13

Authors: Kozlak, Jaroslaw

Abstract: The goal of the work is to develop a multi-agent model and then a system, which makes it possible to solve different kinds of transportation problems. The work will be compared with several multi-agent methodologies. A general multi-agent model and other specific models which make it possible to solve different transport problems are described. The paper also contains a presentation of a pilot realisation including a selection of the subsequent results obtained during experiments.

Keywords: multi-agent systems,transportation planning and scheduling

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00005

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 14-19

Authors: Matuszek, Józef; Moczala, Aleksander

Abstract: This paper presents the possibility of applying the modeling and simulation technique in designing of a logistic chain in production enterprises. The cooperation in production is the main element of the realized analyses. Development of methods and ways of data exchange in cooperation enables creation of aiding computer systems of production cooperation. The possibilities of simulation technique are illustrated by practical examples.

Keywords: production,co-operation,modeling and simulation,expert systems

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00006

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 20-25

Authors: Matuszek, J.; Mleczko, J.

Abstract: Since the production is aimed at fulfilling specific needs of demanding customers and not at filling warehouses, the production volume should reflect the volume of orders. In times of fight for the client every order has to be performed on time. What is more, in times of fight for shortening the delivery cycle, meeting safe deadlines, that is distant in time, is not enough. Companies are forced to meet short deadlines with keeping the product price competitiveness condition. It is hardly possible without a proper, APS (Advanced Planning System) class, advanced planning support system. Currently, advanced planning systems are coming into use, however their cost exceeds the possibilities of small and medium enterprises and algorithms used often require great customization to industries' needs and conditions of unit and small-batch production. The paper has been drawn on the basis of research on overloads of moving bottlenecks in conditions of unit and small batch production in real conditions having a big number of resources and tasks. The methods used so far are not capable of finding the global optimum of such big data ranges. The author took on building a heuristic algorithm which could find solution good enough and based on TOC (Theory of Constraints) assumptions and verification of assumptions using tests in real production systems.

Keywords: job shop scheduling,optimization-based scheduling,moving bottlenecks,heuristic algorithm

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00007

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 26-31

Authors: Bach, I.; Bocewicz, G.; Muszynski, W.; Banaszak, Z.

Abstract: Constraint Programming (CP) is an emergent software technology for declarative description and effective solving of large combinatorial problems especially in the area of integrated production planning. In that context, CP can be considered as an appropriate framework for development of decision making software supporting scheduling of multi-robot in a multi-product job shop. The paper deals with multi-resource problem in which more than one shared renewable and non-renewable resource type may be required by manufacturing operation and the availability of each type is time-windows limited. The problem belongs to a class of NP-complete ones. The aim of the paper is to present a knowledge based and CLP-driven approach to multi-robot task allocation providing a prompt service to a set of routine queries stated both in straight and reverse way. Provided examples illustrate both cases while taking into account an accurate as well as an uncertain specification of robots and workers operation time.

Keywords: knowledge engineering,modeling,constraints logic programming,scheduling

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00008

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 32-39

Authors: Jedrzejec, Bartosz; Nawarecki, Edward

Abstract: This paper concerns the presentation phase of a knowledge discovery process with use of association rules. The employment of the association rules model, the major technique of data mining, to knowledge discovering from the data of energy consumption is presented. The Predictive Model Markup Language (PMML) and XQuery language are involved to facilitate an environment for the systematic examination of complex mining models. A genetic programming approach to reducing complex association rule models is also introduced in the final part of the paper.

Keywords: data reduction,genetic algorithms,databases systems,data storage,data processing

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00009

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 40-45

Authors: Smirnov, Alexander; Levashova, Tatiana; Shilov, Nikolay

Abstract: Appearance of flexible supply networks can be considered as a response to changes in global markets. Networks can be seen as a step beyond the linear supply chain topography. However, when dealing with multiple organizations and multiple processes within a complicated network, identifying and locating a member that has responsibility and/or competence in a particular part of the network can be a laborious, time-consuming process. Knowledge sharing is aimed to assist in solving this problem. An approach presented is based on application of such technologies as ontology and context management to knowledge sharing.

Keywords: information integration,production systems,transportation control

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00010

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 46-51

Authors: Klos, S.; Patalas, J.

Abstract: Enterprise resource planning (ERP) is a computer-based information system for enterprise integration. ERP integrates information from all functional areas of enterprise to support management processes. The implementation of ERP is expensive and time consuming process but today enterprises have no another way. The effective enterprise management is impossible without on-line information about business processes executed in all functional areas. The ERP implementation is a strategic decision that influences enterprise development for many years and ERP systems should evolve together with enterprises. In this paper the benchmarking methodology is proposed that enables evaluating the implementation of an ERP system in three manufacturing companies completing make-to-order production. The enterprises make small series or single, prototype production. The research is based on benchmarking of the enterprises that implemented ERP systems in the past years. It involves comparison of the most important financial ratios and statistical data extracted from the ERP system. Results of data analysis are a basis for a proposed procedure of ERP evaluation. The procedure enables not only evaluating the ERP system implementation but also determining functional areas that require support, changing business processes or functionality of ERP. The proposed benchmarking methodology presents how much the ERP system is adapted to enterprise requirements. Examples presented are based on a case study of polish enterprises.

Keywords: enterprise resource planning,benchmarking,evaluation methodology,case study

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00011

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 52-57

Authors: Sandkuhl, Kurt

Abstract: The importance of managing organizational knowledge for manufacturing enterprises has been recognized since decades. This paper addresses two specific aspect of organizational knowledge modelling: (1) capturing organizational knowledge for supporting product development with so called task patterns and (2) evaluation of task pattern use with focus on economics effects achieved. Starting from an industrial case of product development, the paper introduces the concept of task patterns and the method used for development. The evaluation of task pattern use in product development is based on an adaptation of the balanced scorecard approach. The industrial application of task patterns did not only prove feasible and deployable, but resulted also in a number of positive evaluation results. There is reason to believe that lead times can be shortened, the quality of product documentation increases, and the quality of best practices in general seems to improve when using active knowledge models instead of conventional documentation.

Keywords: enterprise modelling,product development,economic effects

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00012

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 58-63

Authors: Rojek, Izabela

Abstract: The paper presents neural networks as models for classification in intelligent CAPP systems. For construction of classification models three types of neural networks were used: linear network, multi-layer network with error backpropagation and Radial Basis Function network (RBF). The classification models were compared for obtaining optimal classification. Classification models were done for tool selection to manufacturing operation. The research was done for selected manufacturing operations: turning, milling and grinding. Models for milling operation were presented in detail.

Keywords: classification model,neural network,manufacturing operation

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00013

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 64-69

Authors: Vallejo, Antonio Jr; Morales-Menendez, Ruben

Abstract: Next-generation of High Speed Machining (HSM) systems demand features such as intelligent monitoring and decision control under uncertainty. A system based on Markov Decision Process (MDP) is presented. The decision control module of this system guides the actions of the operator in peripheral milling processes. Early results are promising.

Keywords: Markov decision processes,genetic algorithms,high speed machining,decision control system

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00014

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 70-74

Authors: El Menceur, M.-O. Ait; Pudlo, P.; Debril, J.-F.; Gorce, P.; Lepoutre, F.-X.

Abstract: Alternative movement techniques identification is primordial in many studies of biology, medicine and ergonomics. Few studies in literature propose quantitative techniques to achieve this purpose. Park et al. (2005) proposed a biomechanical index based technique named JCV. This method finds its limits when dealing with three dimensional complex movements. In the present study we propose a modification of this method so that it will be applied to complex movements. We consider a non habitual end effector (Midpoint between Hips). We obtain other indices, 3BJCV, to which a non-supervised clustering technique is applied. We have applied our method to the ingress movements of 37 young and elderly subjects with or without prosthesis entering in a minivan vehicle. Our method allows the identification of the two big classes of ingress movements observed by Ait El Menceur et al. (2008b).

Keywords: joint contribution vector,automatic classification,automobile ingress movement strategies,young and elderly drivers,biomechanics

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00015

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 75-80

Authors: Stefánik, Ing. Andrej; Gregor, Ing. Milan; Furmann, Ing. Radovan; Skorík, Ing. Peter

Abstract: The paper focuses on the research & development of the Digital Factory solutions for industry. The developed methodology and solution of Factory Mock Up (FMU) is presented. The results of research and development cover design of assembly system, its processes, simulation model, ergonomic analysis etc. In the paper are presented the solutions developed in the framework of co-operation with industrial partners like Volkswagen Slovakia, Thyssen Krupp - PSL, Whirlpool. The advantages, restrictions and way of utilization of Digital Factory solutions are also shown in the paper.

Keywords: digital factory,virtual reality,simulation,digital mock up

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00016

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 81-85

Authors: Gregor, Ing. Milan; Budzel, Ing. Fredinand; Stefánik, Ing. Andrej; Plinta, Ing. Dariusz

Abstract: The paper presents the results of research realised in 3D laser scanning and digitization of large size objects of the current production systems. The developed and validated methodology shows the procedure of 3D laser scanning application by the digitization of production halls, machine tools, equipment, etc. The described procedure was tested and validated in chosen industrial companies. The paper also presents achieved benefits and future research goals.

Keywords: laser scanning,digitization,production system,3D modelling

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00017

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 86-93

Authors: Dobre, Dragos; Morel, Gérard; Pétin, Jean-François; Baji, Eddy

Abstract: Operating process plants to control, maintain and manage them remains a complex activity driven by skilled operators. Despite the increasing capabilities of automation and information technologies, only a part of the technical objects of a process plant digitally interact with human beings when performing their tasks. This paper present preliminary work based on the Ambient Intelligence concept in order to improve the digital interaction between human beings and technical devices when sharing common activities.

Keywords: process plant operation,ambient intelligence,SysML,simulation,modelica

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00018

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 94-99

Authors: Encinas, J. C.; De Las Morenas, J.; Garcia, A.; Pastor, J. M.

Abstract: In order to improve the management of a production chain and the distribution center after it, a management system based on Multi-Agent Systems (MAS) enhanced with Radio-Frequency Identification of products (RFID) is presented here. The best way to demonstrate the benefits of using this solution for the management system, is to apply it to a real company, but this can be impractical. In this paper, a simulation combined with an experimental physical platform is used. This work describes the installations that have been assembled in the AUTOLOG laboratory at the Universidad de Castilla-La Mancha (UCLM) in Spain. The design of the mentioned installations has been carried out in a generic form, allowing adaptation to different manufacturing problems. The objective of this system is to allow the different users of the AUTOLOG laboratory to be able to experiment with multidisciplinary theories, techniques, and algorithms that can be grouped into four areas: automation and robotics, instrumentation and control, production planning, and logistics and distribution.

Keywords: RFID,agents,physical platform,simulation

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00019

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 100-105

Authors: De Castro Martins, Thiago; De Sales Guerra Tsuzuki, Marcos

Abstract: This work deals with the problem of minimizing the waste of space that occurs on a rotational placement of a set of irregular bi-dimensional items inside a bi-dimensional container. This problem is approached with an heuristic based on Simulated Annealing (SA) with adaptive neighborhood. Traditional "external penalization" techniques are avoided through the application of the no-fit polygon, that determinates the collision-free area for each polygon before its placement. The SA controls continuous and discrete parameters. The rotation applied and the translation of the polygon are continuous parameters, and the sequence of placement is represented as a set of discrete parameters. For each non-placed item, a limited depth binary search is performed to find a scale factor that when applied to the item, would allow it to be fitted in the container.

Keywords: simulated annealing,placement problems,optimization,probabilistic heuristics

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00020

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 106-111

Authors: Gasior, Dariusz; Józefczyk, Jerzy

Abstract: A production planning problem is addressed in the paper. It consists in the determination of a production plan of products to maximize a total utility connected with their manufacture, taking into account a limited amount of types of resources which are necessary for the production. An uncertain version of the problem is considered when an amount of the resources are not precisely known. The formalism of uncertain variables is proposed in the paper to solve this problem. The solution algorithms for two versions of the uncertain production planning problem are presented. It turned out possible to replace the uncertain problems by their deterministic counterparts. A simple numerical example illustrates the solution algorithms.

Keywords: planning,decision making,intelligent manufacturing systems,uncertainty,knowledge-based systems

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00021

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 112-117

Authors: Janiak, Adam; Januszkiewicz, Rafał

Abstract: Problems of scheduling n unit-time jobs on m identical parallel processors are studied, in which for each job a distinct due window is given in advance. If a job is completed within its due window, then it incurs no penalty. Otherwise, it incurs a job-dependent earliness or tardiness cost. For the problem in which earliness and tardiness costs depend on the distance between job completion time and the due window, the objective is to find a job schedule such that a sum or maximum of weighted costs associated with earliness and tardiness is minimized. For the problem with distance-independent costs, the objective is to find a schedule such that the total weighted number of early and tardy jobs is minimized. Properties of optimal solutions of these problems are established. It is proved that these problems can be reduced to min-sum and min-max assignment problems solvable in time O(n4).

Keywords: scheduling algorithms,parallel processors

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00022

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 118-121

Authors: Janiak, Adam; Janiak, Władysław; Rudek, Radosław; Wielgus, Agnieszka

Abstract: The aging effect can be understood as a deterioration of a machine (tool) that increases a time required to manufacture products. It is highly desirable to minimize the negative influence of this effect, which in case of CNC machine is usually compensated by the increasing of its working speed. Therefore, although a tool efficiency decreases the processing times of jobs (products) can be still kept on the desired level. On the other hand, the increasing of a working speed cases the faster decreasing of a durability of a tool and its premature failure. In this paper, we focus on optimization problems in manufacturing systems, where occur the tool wear of CNC drilling/cutting machine and its compensation at the cost of a durability of a tool. We model such problems by single machine scheduling problems with the aging effect and additional resources with two criteria: time criterion (makespan and maximum lateness) and resource consumption penalty. The objectives are the minimization of time criteria under a given resource consumption and the minimization of resource consumption under a given time criteria. Computational analysis of these problems together with solution algorithms are provided.

Keywords: scheduling,deteriorating,resource allocation,CNC,tool wear

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00023

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 122-126

Authors: Pashkevich, Anatol; Chablat, Damien; Wenger, Philippe

Abstract: The paper presents a new stiffness modelling method for multi-chain parallel robotic manipulators with flexible links and compliant actuating joints. In contrast to other works, the method involves a FEA-based link stiffness evaluation and employs a new solution strategy of the kinetostatic equations, which allows computing the stiffness matrix for singular postures and to take into account influence of the internal forces. The advantages of the developed technique are confirmed by application examples, which deal with stiffness analysis of the Orthoglide manipulator.

Keywords: parallel robotic manipulators,stiffness analysis,kinetostatic modelling,orthoglide robot

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00024

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 127-132

Authors: Corrales, J. A.; García, G. J.; Gil, P.; Pomares, J.; Puente, S. T.; Torres, F.

Abstract: This paper describes a multisensorial system employed in a robotic application developed to automatically construct metallic structures. The proposed system has the novelty of a high degree of flexibility with an intelligent multisensorial system. This sensorial system is composed of a visual-force control system, a time of flight 3D-camera, an inertial motion capture system and an indoor localization system. These two last sensors are used to avoid possible collisions between the human operator and the robots working in the same workspace.

Keywords: visual servoing,force control,sensor fusion,estimation algorithms,robot vision

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00025

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 133-138

Authors: Fawaz, K.; Merzouki, R.; Ould-Bouamama, B.

Abstract: This paper deals with a model based real-time virtual simulator of industrial robot in order to detect eventual external collision. The implemented method concerns a model based Fault Detection and Isolation used to determine any lock of motion from an actuated robot joint after contact with static obstacles. Online implementation has been done in order to validate the proposed approach.

Keywords: fault detection & isolation (FDI),industrial robot,dynamic modelling,co-simulation

Digital Object Identifier (DOI): 10.3182/20081205-2-CL-4009.00026

Conference: 9th IFAC Workshop on Intelligent Manufacturing Systems (2008)

Location: Szczecin University of Technology, Poland

Start Date: Thu Oct 09 2008 - End Date: Fri Oct 10 2008

Page Numbers: 139-144