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GMD-Robots
(2001)
Dual Dynamics (DD) is a mathematical model of a behavior control system for mobile autonomous robots. Behaviors are specified through differential equations; forming a global dynamical system made of behavior subsystems which interact in a number of ways. DD models can be directly compiled into executable code. The article (i) explains the model; (ii) sketches the Dual Dynamics Designer (DDD) environment that we use for the design; simulation; implementation and documentation; and (iii) illustrates our approach with the example of kicking a moving ball into a goal.
CASTLE is a co-design platform developed at GMD SET institute. It provides a number of design tools for configuring application specific design flows. This paper presents a walk through the CASTLE co-design environment, following the design flow of a video processing system. The design methodology and the tool usage for this real life example are described, as seen from a designers point of view. The design flow starts with a C/C++ program and gradually derives a register-transfer level description of a processor hardware, as well as the corresponding compiler for generating the processor opcode. The main results of each design step are presented and the usage of the CASTLE tools at each step is explained.
Co-design is concerned with the joint design of hardware and software making up an embedded computer system [Wol94]. A top down design flow for an embedded system begins with a system specification. If it is executable, it may be used for simulation, system verification or to identify algorithmical bottlenecks. In contrast to other chapters of this book, the specification is not developed in this case study, rather it is given from the beginning. Furthermore we are not concerned with partitioning or synthesis of dedicated HW. Instead we focus on the problem how to find an off-the-shelf micro-controller which implements the desired functionality and meets all specification constraints. If feasible, this is usually much cheaper then using dedicated hardware. This chapter will answer the question of feasibility for a real life problem from automobile industry.
The growing number of production enterprises that use software systems to support the production planning and control (PPC-systems and limited life-time of these systems imply that many enterprises have to decide whether or not an existing PPC-system is worthwhile reengineering. The factores that have an impact on this decision are non-quantifiable. Since the fuzzy-set-theory provides facilities to deal with non-quantifiable variables, a decision-tool based upon a fuzzy model was conceived.
Mit dem Projekt METHPRO werden die Entwicklung und der Einsatz einer Methodik verfolgt, mit deren Hilfe Softwareanwender sowie -anbieter die organisatorischen und technischen Prozesse zur integrierten Planung und Steuerung von Produktion (PPS), Instandhaltung (IPS) und Qualitätsmanagement (QM) gestalten und individuell anpassen können. Der Beitrag zeigt, wie ein objektorientierter Prototyp entwickelt wird, der diese integrierten Prozesse unterstützt.