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Register a new userImproving the performance of data transfer in the hybrid low-speed networks that are used in the near-real time operating establishments
تحسين أداء شبكة نقل المعطيات الهجينة منخفضة السرعة و المستخدمة في المنشآت العاملة في الزمن شبه الحقيقي
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أدى انتشار تطبيق تقنيات نقل المعطيات الحديثة، في مجالات صناعية، و زراعية، و خدمية متنوعة إلى ضرورة نقل هذه المعطيات، ضمن أجزاء المنشآت، بفعالية و مرونة. يهدف البحث إلى تطبيق آلية هجينة، تعتمد على استخدام تقنية ZigBee، و تقنية CAN Bus معاً، بما يعطي أداء أفضل، وفقاً لمعايير الأداء التي يتطلبها عمل شبكات هذه المنشآت، في الزمن شبه الحقيقي. و مقارنة هذه الآلية مع الآليات المقترحة في أبحاث مشابهة. يعتمد الحل المقترح استخدام شبكات نقل معطيات هجينة، تعتمد على وصل الشبكات الجزئية، التي تعتمد تقنية CAN Bus، باستخدام عمود فقري لاسلكي يعتمد تقنية ZigBee. و اقتراح بنية مناسبة لبوابات العبور بين أجزاء الشبكة الهجينة. أثبتت النتائج أن الآلية المقترحة في هذا البحث أفضل مقارنة بأبحاث مشابهة، وفقاً لمعايير أداء مناسبة لمثل هذا النوع من الشبكات، بما يسمح لنا بالتوصية باستخدام هذه الآلية في التطبيقات الصناعية الخدمية. و قد اعتمد البحث على المحاكي الشبكي NS2 لتقييم النتائج و مقارنتها.
The spread of the modern data transfer techniques, in modern industrial and agricultural applications, and service areas, leads to the need to transfer this data effectively and flexibly, within installations parts. This research aims to apply the hybrid mechanism, based on the use of ZigBee technology, and CAN Bus together to ensure the best performance, in accordance with the performance indicators required by the networks of these facilities, in near-real time operation. The study attempts to compare this mechanism with other mechanisms proposed in similar research. The proposed solution supports the use of a hybrid data transfer networks, based on the internetworking of CAN Bus networks, using a backbone based on wireless ZigBee technology. This solution proposes an appropriate structure for gateways between the hybrid parts of the network. The research has concluded that the proposed mechanism preference, compared with the proposed mechanisms in similar research, according to the standards of performance indicators, is suitable for this kind of networks, as it allows us to recommend the use of this mechanism in the service and industrial applications. The NS2 network simulator is used to evaluate and compare the obtained results.
References used
G. Gaderer, P. Loschmidt, and A. Mahmood, A novel approach for flexible wireless automation in real-time environments, in Proc. IEEE Int. WFCS, Dresden, Germany, May 21–23, 2008, pp. 81–84
L. Rauchhaupt, System and device architecture of a radio based fieldbus—The RFieldbus system, in Proc. 4th IEEE Int. Workshop Factory Commun. Syst., 2002, pp. 185–192
Guddeti Kiran kumar Reddy, G. Kalaimagal. A Hybrid Network for Greenhouse Management Using CAN and ZIGBEE, IJERSS : Volume I - Issue IV, April 2014
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تطبيقات الزمن الحقيقي
التحكم بالازدحام
Congestion Control
تطبيقات الزمن غير الحقيقي
قواعد الرتل
خوارزمية البداية البطيئة
تجنب الازدحام
خوارزمية إعادة الإرسال السريع و الاستعادة السريعة
Real Time application
non-real time application
Queue disciplines
Slow start algorithms
Congestion avoidance algorithms
Fast retransmit and Fast recovery
المزيد..
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