It is proposed a new approach based on a methodology, assisted by a tool, to create new products in the automobile industry based on previous defined processes and experiences inspired on a set of best practices or pr...
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It is proposed a new approach based on a methodology, assisted by a tool, to create new products in the automobile industry based on previous defined processes and experiences inspired on a set of best practices or principles: it is based on high-level models or specifications; it is component-based architecture centric; it is based on generative programming techniques. this approach follows in essence the MDA (Model Driven Architecture) philosophy with some specific characteristics. We propose a repository that keeps related information, such as models, applications, design information, generated artifacts and even information concerning the development process itself (e.g., generation steps, tests and integration milestones). Generically, this methodology receives the users' requirements to a new product (e.g., functional, non-functional, product specification) as its main inputs and produces a set of artifacts (e.g., design parts, process validation output) as its main output, that will be integrated in the engineer design tool (e.g. CAD system) facilitating the work.
the proceedings contain 32 papers. the topics discussed include: performance analysis of GPS/INS integrated system by using a non-linear mathematical model;object-level fusion and confidence management in a multi-sens...
ISBN:
(纸本)9783540898580
the proceedings contain 32 papers. the topics discussed include: performance analysis of GPS/INS integrated system by using a non-linear mathematical model;object-level fusion and confidence management in a multi-sensor pedestrian tracking system;optimal view selection and event retrieval in multi-camera office environment;a comparison of track-to-track fusion algorithms for automotive sensor fusion;most probable data association with distance and amplitude information for target tracking in clutter;efficient multi-target tracking with sub-event IMM-JPDA and one-point prime initialization;behavioral programming with hierarchy and parallelism in the DARPA urban challenge and robocup;map fusion based on a multi-map slam framework;and 3D reflectivity reconstruction by means of spatially distributed kalman filters.
Designing real-time system is hard and costly. Real-time application designer must care about functional design and real-time constraints. Aspect oriented programming (AOP) allows the separation of the functional mech...
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Designing real-time system is hard and costly. Real-time application designer must care about functional design and real-time constraints. Aspect oriented programming (AOP) allows the separation of the functional mechanisms from the non-functional ones. the separation of concerns (SoC) in AOP enhances the productivity and reduces the applications cost. In this paper we propose a SoC approach for designing real-time applications. the main idea is to process standard applications into real-time ones. the processing is done by ldquoweavingrdquo real-time constraints on the standard applications model. We introduce a rule which defines how real-time constraints will be woven. Depending on the design language, this rule will have a set of instantiation values. We gess, in this paper, the case of UML designed standard applications which will be processed into a MARTE (i.e. UML profile for modeling and analyzing real-time and embedded systems) real-time application model.
In this paper, we propose a COmbined SVC-MDC (Scalable Video Coding & Multiple Description Coding) video coding scheme using the multi-core parallel programming paradigm for P2P video streaming, which is denoted C...
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A three-level architecture for a team of autonomous cooperative robots has been proposed. A dynamic Joint-Commitment scheme is proposed to support the formulation of relational behaviors for cooperative robots playing...
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ISBN:
(纸本)9781424438075
A three-level architecture for a team of autonomous cooperative robots has been proposed. A dynamic Joint-Commitment scheme is proposed to support the formulation of relational behaviors for cooperative robots playing soccer. Teamwork between two robots which know from each other that they are committed to a relational behavior may pass the ball from one robot to another, receive the ball and kick, and handle exceptions. the joint commitment is established based on a finite state machine and a messaging system to: (1) synchronize the pass behavior, (2) reiterate the process and extend the pass to another partner, or (3) break the commitment and search for a new partner depending on dynamic game conditions. To provide dynamic joint-commitment and needed synchronization a fast, reliable, and power aware communication model is needed for Ad-Hoc wireless networks forming a cooperating multi-robot system. Current techniques are based on client-server, Publish/Subscribe, and Peer/Peer communication which are not suitable. For this we implemented and evaluated an auction based communication model based on (1) TCP Peer to Peer Scheme, (2) UDP Peer to Peer (UPTP) Scheme, and (3) UDP Broadcast and Token Passing (UBTP) scheme. Evaluation reports the distribution of auction completion times and power consumption for auction-based and peer-to-peer communication.
Over the last decade a new data interface for CAM/CNC integration has been established to replace ISO 6983. the new standard, ISO 14649 (STEP-NC), provides a comprehensive data model that describes both geometrical an...
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ISBN:
(纸本)9780878492992
Over the last decade a new data interface for CAM/CNC integration has been established to replace ISO 6983. the new standard, ISO 14649 (STEP-NC), provides a comprehensive data model that describes both geometrical and technological information in an object-oriented way. In order to bridge the gap between such rich-information programs and the legacy CNC systems, this paper presents a framework for manipulating the manufacturing data in STEP-NC part programs. the proposed system provides a basic platform for STEP-NC program interpretation, geometry visualization, micro-process planning and program re-generation. Major issues relating to the realization of manufacturing information extraction and shop-floor-level process planning are addressed in particular, and a prototype for STEP-NC turning process is implemented to demonstrate the feasibility of the approach.
this paper presents an alternative method for solving the problem of finite transducers using gene expression programming (GEP). Each individual in the GEP system represents a Mealy machine with outputs for each state...
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ISBN:
(纸本)9781424446568
this paper presents an alternative method for solving the problem of finite transducers using gene expression programming (GEP). Each individual in the GEP system represents a Mealy machine with outputs for each state. Be means of roulette-wheel sampling, individuals are chosen for the next generation and are put through a series of genetic operators which seek to change the mark-up of the individual to better fit the selection environment/ fitness sets. the system was tested with five problems to show its effectiveness and success at solving all of those problems.
the nonlinear complementarity problem (NCP) has been served as a general framework for linear, quadratic, and nonlinear programming, linear complementarity problem, and some equilibrium problems. Applications of the N...
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ISBN:
(纸本)9781424437597
the nonlinear complementarity problem (NCP) has been served as a general framework for linear, quadratic, and nonlinear programming, linear complementarity problem, and some equilibrium problems. Applications of the NCP can be found in many important fields such as economics, mathematical programming, operations research, engineering and mechanics. In this article, we consider smooth NCP on the basis of the square penalized Fischer-Burmeister function. We show under certain assumptions, any stationary point of the unconstrained minimization problem is already a solution of smooth NCP. Furthermore, a derivative-free descent algorithm is suggested and conditions for its convergence are given. Finally, some preliminary numerical results are presented.
Statecharts are an important tool for specifying the behavior of reactive systems, and development tools can automatically generate object-oriented code from them. As the system is refactored, it is necessary to modif...
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ISBN:
(纸本)9783642049408
Statecharts are an important tool for specifying the behavior of reactive systems, and development tools can automatically generate object-oriented code from them. As the system is refactored, it is necessary to modify the associated statecharts as well, performing operations such as grouping or ungrouping states, extracting part of a statechart into a separate class, and merging states and transitions. Refactoring tools embedded in object-oriented development environments are making it much easier for developers to modify their programs. However, tool support for refactoring statecharts does not yet exist. As a result, developers avoid making certain changes that are too difficult to perform manually, even though design quality deteriorates. Methodologically, statecharts were meant to enable a systems engineer to describe a complete system, which would then be refined into a concrete implementation (object-oriented or other). this process is not supported by object-oriented development environments, which force each statechart to be specified as part of a class. Automated tool support for refactoring statecharts will also make this kind of refinement possible. this paper describes a case study that shows the usefulness of refactoring support for statecharts, and presents an initial catalog of relevant refactorings. We show that a top-down refinement process helps identify the tasks and classes in a natural way.
the IEC 61499 architecture is a new standard proposed to replace current PLC technologies. this paper aims to develop a guide to migrate from IEC 61131 PLC technologies to IEC 61499 function blocks, especially for PLC...
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ISBN:
(纸本)9781424437597
the IEC 61499 architecture is a new standard proposed to replace current PLC technologies. this paper aims to develop a guide to migrate from IEC 61131 PLC technologies to IEC 61499 function blocks, especially for PLC programmers. Multiple PLC platforms are chosen as examples and transformed function block system is provided. Beyond migration rules, current limitation and cautions during migration are discussed on the final section of this paper.
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