http://www.ifac-papersonline.net/ en Copyright 04:31 PM Sunday 19, 2013 IFAC-PapersOnline http://www.ifacpapersonline.com 04:31 PM Sunday 19, 2013 04:31 PM Sunday 19, 2013 ET webmaster@ifac-papersonline.net webmaster@ifac-papersonline.net http://www.ifac-papersonline.net/Detailed/39091.html 04:00 PM Wednesday 31, 1969 http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39092.html 04:00 PM Wednesday 31, 1969 http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39093.html 04:00 PM Wednesday 31, 1969 http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39094.html 04:00 PM Wednesday 31, 1969 http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39095.html 04:00 PM Wednesday 31, 1969 Ambient Intelligence (AmI) refers to the presence of a digital environment that is sensitive, adaptive and responsive to the presence of people. AmI will encompass our home, our car, our work and the public spaces. AmI is going to support people in their daily life in a non-intrusive way. ICT will become part of the environment in which people fulfil their tasks and in which people live. Ambient Intelligence Environment will effectively support us in the completion of our daily tasks. This definition has to be extended to the industrial and business environment. The importance of Ambient Intelligence will be described. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39096.html 04:00 PM Wednesday 31, 1969 The paper focuses on Lean Manufacturing. The aim is to position Operational Research techniques from the perspective of optimal design of lean manufacturing processes. The developed methodology is based upon advanced line balancing methods and their coupling with process planning and equipment selection. An example of such a decision aid system is presented for the design of machining systems. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39097.html 04:00 PM Wednesday 31, 1969 Augmentation of production and logistics by effective, collaborative e-Work requires understanding the human and organizational augmentation needs and abilities. Collaborative control theory (CCT) and design principles are discussed, and key performance measures for emerging e-Production and e-Logistics systems are described and illustrated in this article. Then, the achievable limits based on these measures in e-Production and e-Logistics are studied as a guide for designers of such systems and for future researchers aspiring to extend these limits. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39098.html 04:00 PM Wednesday 31, 1969 This paper puts forward a novel concept: the intelligent being. Intelligent agents emphasize action and decision-making, which is strongly reflected in the results of agent research. However, real-world applications require much more than decision-making and the intelligent being addresses a crucial part of this: reflecting reality into the agent world. Importantly, reflecting some part of reality offers significant benefits for software developers. Indeed, properly designed intelligent beings inherit the coherency and consistency of the corresponding reality. This allows the development of systems with unprecedented complexity and size. This paper discusses the novel concept and its implications for software development. Importantly, the intelligent agents themselves may be considered as part of the corresponding reality, resulting in short-term forecasting services. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39099.html 04:00 PM Wednesday 31, 1969 The capability to estimate accurately the internal costs of a product in the different stages of the development as well as external cost at the quote step is of a strategic importance to a company. The traditional accounting methods as well as the estimation tools have shown their limits to provide a stringent unified tool in both the accounting and the technical sides. A Method of estimation based on the Cost Entity was born recently in order to overcome the loopholes of the usual methods. This method allows from a more or less complete description of the product to link the manufacturing processes (Manufacturing Entities) with the consumption of the associated resources (Cost Entities). The highly cognitive character of such an approach suits the use of a knowledge formalization tool, like ontology. In fact, besides being a simple referencing tool for objects and concepts, the ontologies will allow to capitalize, formalize and structure the concrete knowledge (product description, process...) as well as the abstract one (calculus process, expert rules...) which are both required for cost estimations. The treatment of this knowledge to obtain cost estimation will be done by an independent expert system. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39100.html 04:00 PM Wednesday 31, 1969 "Capitalizing on" and "making uses" of all crucial information, referred as knowledge, is nowadays one of the most important organizations' concern so as to remain competitive in the current economical context. In this paper, we present experience feedback as an alternative solution to usual knowledge management systems. By the end of the paper, the main characteristics of the experience feedback process and architecture will be presented and then an example of knowledge extraction concerning a risk indicator will be introduced. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39101.html 04:00 PM Wednesday 31, 1969 Designing in an industrial context is a very complex activity. It needs the integration of heterogeneous knowledge or skills, to transform a set of ill-defined requirements into an artefact that satisfies esthetical, functional, technical, economical criteria. Design process optimization with methods like system engineering and core competency building are key issues for managers of product development process, design skills networks, communities of design practices... In the literature, these issues have been dealt with separately. In this paper, we propose a framework of reference that helps us to explicit the content of the core design competency. This framework is a first step beyond an efficient competency based management of design structures. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39102.html 04:00 PM Wednesday 31, 1969 The project memory consists of keeping the trace of actions achieved in the setting of a project. It permits to find the author (and responsible) of an action (or decision) took in the past. It also to reuse permits the previous project in order to reduce delays and costs. This paper presents a whole of generic and coherent UML models coherent intended to develop the software tool to assure the projects memory, after adaptation and taking into account the context. After some definitions of project memory, the global architecture of the system is presented. A diagram of conception on which rests several models is proposed. The management of relations between entities permits to bind models together. Some diagrams illustrate the main diagrams of proposed classes. At the end we present a conceptual approach that can be exist between ontology and project memory is proposed. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39103.html 04:00 PM Wednesday 31, 1969 Supply chain is more and more studied by the enterprises to handle the reinforcement of the economic constraints and to meet the clients' cost requirement, quality and delay. They are aware that their partners 'performance impact their own performance. The members of the supply chain need to communicate and share knowledge with their partners, to have a better diffusion of their objectives and constraints thereby favoring quick actions for problem solving. In order to favor the sharing of knowledge, we propose in this paper, an approach based on the relationships and interactions between the strategic partners to co-construct a common knowledge base. This approach facilitates communication and understanding of each actor's situation and context by showing their point of view in the supply chain. We also describe its utilization in collaborative relationships between a luxury stool producer with its suppliers and its distributors. We have assisted the implementation of the approach through the management of an ontology and knowledge cards on a specific logistic project. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39104.html 04:00 PM Wednesday 31, 1969 Study of complex entities such as organizations and their sub-systems requires a modular approach where knowledge from various organizational modules is collected and studied synergistically. As a modular approach, an enterprise modelling which is the art of externalizing enterprise knowledge can be applied in order to add value to the enterprise. The purpose of current study is to describe and highlight the similarities of two related fields -knowledge management (KM) and enterprise modelling (EM). The paper proceeds to develop a systematic approach to link the two fields by studying the roles and contributions of enterprise modelling initiatives in knowledge management. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39105.html 04:00 PM Wednesday 31, 1969 An array-based clustering approach is proposed as an effective mean for providing an alternative solution in team building problem. The proposed approach generates a systematic formation of task and team member families by sequencing the rows and the columns of a task-personnel incidence matrix. To obtain the task-personnel incidence matrix, a fuzzy sets approach will be proposed to combine two fundamental incidence matrices: the task-discipline and personnel-discipline incidence matrices. The proposed method is demonstrated by applying to an example in team building problem. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39106.html 04:00 PM Wednesday 31, 1969 This article aims at presenting preliminary results of a study carried out in partnership with Turbomeca Company about the problem engendered by the implementation of Experience Feedback (EF) processes within large scale companies. A model constituted of cooperating EF processes and adapted to hierarchical decision levels is proposed. Models of experiences corresponding to each level are defined and an illustration in concrete situation is described. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39107.html 04:00 PM Wednesday 31, 1969 Skills management in industry is one of the most important factors in order to obtain good performance with production means. Especially in the field of maintenance services where the different practical knowledge or skills are their working tools. We address, in this paper, both the assignment and scheduling problems that can be found in a maintenance service. Each task that has to be performed is characterized by the level of skill required. The problem lies with making the decision of which time is the right time for the assignment and scheduling of the correct resource to do the task. For human resources, all skill levels are different, they are considered as unrelated parallel machines. Our aim is to assign new tasks to the adequate resources by giving to the maintenance expert a good and robust possibility. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39108.html 04:00 PM Wednesday 31, 1969 The multiple techniques or organisational innovations, in the companies, did not produce all the expected effects yet. In this context, this paper first of all aims at answering the following question: Which are today the new strategic objectives of the company, to succeed in being innovating? Thereafter we want to clarify the concept of innovating design. Then we will identify the stages of the process of innovating design and we will propose a system to evaluate its performance. We also analyze the activities of the actors, the management of their competences and the knowledge capitalization process. Finally we propose a product-process-knowledge integrated model which makes possible to take into account the four processes simultaneously: design, management, evaluation and knowledge management. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39109.html 04:00 PM Wednesday 31, 1969 The paper focuses on the control problem of a hyperredundant robot that performs the coil function of grasping. First, the dynamic model of a hyperredundant arm with continuum elements produced by flexible composite materials in conjunction with active-controllable electro-rheological fluids is analyzed. Secondly, both problems, i.e. the position control and the force control are approached. The difficulties determined by the complexity of the non-linear integral-differential equations are avoided by using a basic energy relationship of this system. Energy-based control laws are introduced for the position control problem. A force control method is proposed, namely the DSMC method in which the evolution of the system on the switching line by the ER fluid viscosity is controlled. Numerical simulations are also presented. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39110.html 04:00 PM Wednesday 31, 1969 In this paper we address the problem of planning and controlling a group of point robots from specifications given in terms of LTL formulas over regions of interest of a polytopal environment. Our approach consists in three main steps. First, the problem is discretized by abstracting the motion capabilities of each robot. Second, a transition system abstracting the motion capabilities of the whole team is constructed, and a discrete solution to the problem is found by using an approach similar to model checking. Third, the discrete solution is adapted back to the continuous world. The main challenge in this adaptation is the design of a synchronization strategy for the whole team. The approach is fully automated and illustrative examples are included. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39111.html 04:00 PM Wednesday 31, 1969 In this paper two new criteria are proposed for performance evaluation of point features extracted using SIFT detector. The criteria measure the quality of image features for visual servoing applications. The first one is derived from the repeatability rate criterion and the second one is a new approach to analyse the spreading degree of image features using Mahalanobis distance. New feature descriptors are introduced based on image moments and results of real experiments are analysed. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39112.html 04:00 PM Wednesday 31, 1969 This work presents some considerations regarding mathematical models and control solutions for a class of mobile robots currently namely two-wheel differential drive mobile robots. Now, this configuration is one of the most utilized mechanical structures in wheeled mobile robotics practice. The closed loop control diagrams for position control and respectively for direction control in tracking along imposed trajectories are also analyzed and included in this paper. For these control solutions and based on root locus method diagram, the paper presents therefore some analyses regarding the stability in different circumstances. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39113.html 04:00 PM Wednesday 31, 1969 An attempt to connect finite automata theory with multi-agent systems is presented. The purpose is to obtain an accurate way to plan and control the robot activities within a multi-robot system. The proposed model is an adapted Moore machine, which is to be used with a contract net protocol agent coordination procedure. The considered architecture was tested in an educational flexible manufacturing system with two industrial robots. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39114.html 04:00 PM Wednesday 31, 1969 Effective schedule of production operations that conducts to optimized solutions that are realistic and feasible is a complex task that has been intensively studied due to its economic importance. Starting from the graph of the detailed problem, a method of optimization the task schedule is emphasized. In order to obtain a minimum time for the project execution together the fulfilment of resource constraints, the detailed model is aggregated, optimized from the point of view of the graph height and cardinality and finally the solution is disaggregated. The method is applied in the case study of a Flexible Manufacturing System for an assembly project that is used for educational purposes, emphasizing the results. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif http://www.ifac-papersonline.net/Detailed/39115.html 04:00 PM Wednesday 31, 1969 Robot systems represent an important class of applications where the theory of invariant sets can provide important supplementary information for complementing the classical stability analysis. Within this context, we develop a scenario for exploring the invariant and contractive sets of nonlinear systems, which is further used as a powerful instrument for investigating the motion of an autonomous mobile robot. Our approach relies on the concept of "flow-invariant exponential stability", introduced as a particular type of exponential stability that concomitantly ensures the existence of contractive sets invariant with respect to the state-space trajectories. The new mathematical results are applied in order to identify contractive sets inside the stability domain found by other researchers for the motion of a mobile robot controlled by visual servoing. http://www.ifac-papersonline.net/static/luna/images/ifac/icon-download.gif