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The Reliability of Wireless Sensor Networks Used For Early Detection of Fire, Status: Fir & Cedar Preserve in Lattakia, Syria

وثوقية شبكات الحسّاسات اللاسلكية المستخدمة للكشف المبكّر عن الحرائق دراسة حالة : محميّة الشّوح و الأرز في محافظة اللاذقية, سورية

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 Publication date 2016
and research's language is العربية
 Created by Shamra Editor




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A lot of research directed its concern to the reliability of Wireless Sensor Networks (WSNs) used in various applications, especially in early detection of forest fires to ensure the reliability of warning alarms sent by sensors and reduce the average of false warnings. In this research we have tried to evaluate the reliability of WSN used in early detection of fires in Fir and cedar preserve, mainly. By designing hybrid WSN network, similar to the terrains of the preserve and modeling it using program Opnet14.5. We have studied several scenarios, to allow increasing malfunction of the network resulting from fire break out and spreading: starting in allowance of 0% and comparing its results the results of mathematical equations of reliability according to the same scenarios. In addition, we have calculated the final availability through suggesting a mechanism to improve WSN reliability using the redundancy, i.e add sensitive spare nodes, which replace the damaged ones as the result of fire. The results have proved the remarkable increasing of reliability. Also, it has been predicted of the reliability of the network designed according to reliability of different values of the nodes used by using one of the reliability devices "the Block Diagram".


Artificial intelligence review:
Research summary
تناول البحث موضوع وثوقية شبكات الحساسات اللاسلكية المستخدمة للكشف المبكر عن الحرائق، مع التركيز على محمية الشوح والأرز في محافظة اللاذقية، سورية. تم تصميم شبكة حساسات لاسلكية هجينة تحاكي تضاريس المحمية ونمذجتها باستخدام برنامج المحاكاة Opnet 14.5. تمت دراسة عدة سيناريوهات لسماحية العطل المتزايدة الناتجة عن اندلاع الحريق وانتشاره، بدءاً من سماحية 0%. تم مقارنة نتائج المحاكاة مع نتائج تطبيق المعادلات الرياضية للوثوقية وفق نفس السيناريوهات. كما تم اقتراح آلية لتحسين وثوقية الشبكة باستخدام الفائضية، أي إضافة العقد الحساسة الاحتياطية التي تحل محل العقد التالفة نتيجة الحريق. أثبتت النتائج زيادة ملحوظة في الوثوقية. كما تم التنبؤ بوثوقية الشبكة المصممة بناءً على قيم وثوقية مختلفة للعقد المستخدمة باستخدام المخطط الصندوقي للوثوقية.
Critical review
دراسة نقدية: يعتبر هذا البحث من الأبحاث الهامة التي تساهم في تحسين وثوقية شبكات الحساسات اللاسلكية المستخدمة في الكشف المبكر عن الحرائق. ومع ذلك، هناك بعض النقاط التي تحتاج إلى مزيد من التوضيح. على سبيل المثال، لم يتم التطرق بشكل كافٍ إلى التكلفة الاقتصادية لاستخدام الفائضية المادية، والتي قد تكون عالية في بعض الحالات. كما أن الدراسة لم تتناول بشكل مفصل تأثير العوامل البيئية الأخرى مثل الرياح والرطوبة على أداء الشبكة. بالإضافة إلى ذلك، يمكن تحسين البحث من خلال إجراء تجارب ميدانية للتحقق من نتائج المحاكاة.
Questions related to the research
  1. ما هو الهدف الرئيسي من البحث؟

    الهدف الرئيسي من البحث هو تقييم وثوقية شبكات الحساسات اللاسلكية المستخدمة للكشف المبكر عن الحرائق في محمية الشوح والأرز، واقتراح آلية لتحسين وثوقية هذه الشبكات باستخدام الفائضية.

  2. ما هي الأدوات المستخدمة في نمذجة الشبكة؟

    تم استخدام برنامج المحاكاة Opnet 14.5 لنمذجة الشبكة ودراسة سيناريوهات سماحية العطل المختلفة.

  3. ما هي النتائج الرئيسية التي توصل إليها البحث؟

    أثبتت النتائج أن استخدام الفائضية يزيد من وثوقية الشبكة بشكل ملحوظ، كما تم التنبؤ بوثوقية الشبكة المصممة بناءً على قيم وثوقية مختلفة للعقد المستخدمة.

  4. ما هي السيناريوهات التي تمت دراستها في البحث؟

    تمت دراسة عدة سيناريوهات لسماحية العطل المتزايدة الناتجة عن اندلاع الحريق وانتشاره، بدءاً من سماحية 0% وحتى 35%.


References used
QIU, W.; SKAFIDAS, E. and HAO, P. "Enhanced tree routing for wireless sensor networks". Ad Hoc Networks, 2009, 638-650
XIA, F.; TIAN, Y.C.; LI, Y.J.; and SUN, Y.X. "Wireless sensor/actuator network design for mobile control applications". Sensor, 7(10), 2007, 2157- 2173
KOUSHANFAR, F.; POTKONJAK, M. and VINCENTELLI, A.S. "Fault Tolerance in Wireless Sensor network". In Handbook of Sensor Networks: Compact Wireless and Wired Sensing Systems, CRC press, Chp. 36, 2004, 1- 15
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