مطابقت پروتکل شبکه حساس به زمان با مشخصات استاندارد MIL-STD-1553B برای کاربردهای هوایی

نوع مقاله : مقاله برق

نویسندگان

دانشگاه تخصصی فناوری‌های نوین آمل، آمل، ایران

چکیده

در این مقاله، پروتکل شبکه ­های حساس به زمان در بستر گذرگاه داده MIL-STD-1553  پیاده­سازی و ارزیابی شده است تا متوسط تاخیر در دریافت بسته­ ها کاهش یابد. مهمترین خصوصیت این گذرگاه قابلیت اطمینان بالای آن است. یکی از پارامترهای مطرح در این گذرگاه، قطعیت در رسیدن داده ­ها همراه با تاخیر تعریف شده است، یعنی گذرگاه به گونه ­ای طراحی شده که احتمال ایجاد تاخیرهای خارج از استاندارد وجود ندارد. اما با وجود تمامی خصوصیت­های خوب این گذرگاه، امروزه سرعت پایین آن جوابگوی سیستم­های نوین نیست. در این مقاله، مسئله تاخیر و تضمین آن مبتنی بر شبکه حساس به زمان مورد بررسی قرار داده می­شود. روش پیشنهادی، به اولویت دهی به بسته­ هایی می­پردازد که در گذرگاه داده 1553 مبادله می­گردند.  برای پیاده سازی از نرم افزار OMNET++ استفاده شده و نتایج شبیه­ سازی نشان می­دهد که تاخیرها نسبت به گذرگاه 1553 کمتر بوده و ضمن ثابت بودن اندازه این تاخیرها، میزان آنها در شرایطی که همراه با افزایش حجم داده­ ها و نرخ انتقال آنها است، تقریبا ثابت است. پروتکل حساس به زمان پیشنهادی به طور متوسط 86 درصد ماکزیمم تاخیر در شبکه را کاهش می­دهد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Compliance of Time Sensitive Network Protocol with the Specifications of MIL-STD-1553B Standard for Aviation Applications

نویسندگان [English]

  • Fakhroddin Nazari
  • Rasoul Hajizadeh
  • Mohammad Abbasi
Amol University of Special Modern Technologies, Amol, Iran
چکیده [English]

In this article, the time-sensitive networking protocol on the MIL-STD-1553 data bus is implemented and evaluated to reduce the average packet reception delay. The most important feature of this bus is its high reliability. One of the parameters addressed in this bus is the certainty of data arrival along with the defined delay, meaning the bus is designed in a way that the probability of creating delays beyond the standard does not exist. However, despite all the good properties of this bus, its low speed is not suitable for modern systems today. In this article, the delay issue and its guarantee based on time-sensitive networking are examined. The proposed method prioritizes packets exchanged in the 1553 data bus. OMNET++ software is used for implementation, and simulation results show that delays have been less compared to the 1553 bus, and while the size of these delays remains constant, their amount is almost constant under conditions where there is an increase in data volume and its transfer rate. The proposed time-sensitive protocol reduces the average maximum network delay by 86 percent.
 

کلیدواژه‌ها [English]

  • Data bus
  • Aviation systems
  • Time sensitive network
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