بناء نموذج تصميم مشترك للنظم المضمنة المستمرة
Abstract
تُعَدُّ النظمُ المضمنة المستمرة من البنى الأساسية في تكوين النظم المضمنة التخالفية(Heterogeneous Embedded System)، و يزداد تعقيد تصميم هذه النظم بازدياد تعقيد بنيتها. لذلك وبسبب السلوك المختلف لكل من SW و HW من حيث التنفيذ و الاتصال يتم السعي إلى تصميم هذه النظم عن طريق التوصيف على مستوى النظام (System Level) للعتاد الصلب و العتاد البرمجي من خلال وضع نموذج تصميم مشترك (Hardware Software co-design Model). واستخدام النماذج المتوفرة يتطلب إعادة صياغتها لتصبح نموذج تصميم مشترك، بالإضافة إلى أن الحاجة إلى أكثر من نموذج في التصميم يتطلب آلية لربط هذه النماذج وذلك للحصول على نموذج متكامل. في هذا البحث نقوم بوضع نموذج تصميم مشترك للنظم المضمنة المستمرة باستخدام (PtolemyII) و هو إطار برمجي مبني على أساس لغة Java، من إنتاج (University of California, Berkely) وهو جزء من مشروع Ptolemy. ثم نطبق هذا النموذج على محركات السيارات بغرض ضبط سرعتها ضمن حلقة مفتوحة و حلقة مغلقة.
Continuous-domain embedded systems are one of the essential structures of heterogeneous embedded system, and the designing complexities increase proportional to increasing the complexities of its structure. The difference behavior of hardware and software in execution and communication, motivates the usage of high-level system design approaches, such (Hardware Software co-design Model). Using available models in design, is needing to redefine this models to be (Hw/Sw co-design Model), and use multiple models in design require interconnection tools to obtain compatible model. In this research we design (co-design model) for Continuous-domain embedded systems, and applied it on car engine to control its speed as open-loop and close-loop. To achieve the model, we use Ptolemy II (is a Java-based software framework developed as part of the Ptolemy Project by University of California, Berkely).
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