| 基于分层优先级队列算法的AFDX端系统 |
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| 引用本文： | 孙月江.基于分层优先级队列算法的AFDX端系统[J].山东理工大学学报,2013(5):48-53. |
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| 作者姓名： | 孙月江 |
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| 作者单位： | 青岛工学院信息工程学院,山东青岛266300 |
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| 基金项目： | 山东省高等学校科技计划项目（J13LN76） |
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| 摘 要： | 高速性、确定性、冗余度是航空电子双工交换以太网(AFDX)的技术特点.根据AFDX网络协议标准,突破整形、调度、冗余等关键技术,研究并设计了基于分层优先级队列算法的AFDX端系统.将端系统分为网络接口模块和网络协议栈两大部分进行设计,采用基于网络演算方法建立数学模型对其进行了性能分析.研究结果表明AFDX端系统可以有效保证虚链路带宽和服务质量,满足AFDX网络的顺序完整性要求,具备冗余容错性能,实现了预期的主要设计指标.
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| 关 键 词： | AFDX网络 端系统 调度算法 网络协议栈 |
AFDX terminal system based on hierarchical priority queue algorithm |
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| SUN Yue-jiang.AFDX terminal system based on hierarchical priority queue algorithm[J].Journal of Shandong University of Technology:Science and Technology,2013(5):48-53. |
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| Authors: | SUN Yue-jiang |
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| Institution: | SUN Yue-jiang (School of Information Engineering, Qingdao University of Technology, Qingdao 266300, China) |
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| Abstract: | High speed, deterministic and dual-redundancy are the technology features of avionics full duplex switched ethernet （AFDX） . According to the protocols of AFDX, some key technol- ogies like plastic, scheduling, redundancy are broken through and a AFDX terminal system based on hierarchical priority queue algorithm is researched and designed. The system includes a net- work interface module and a network protocol stack part. A mathematical model based on the network calculus method is established to analyze the performance. The results indicated that the AFDX system can effectively guarantee the virtual link bandwidth and the quality of service. It can meet the requirements of the AFDX network sequence integrity with redundant fault-tolerant performance. So, the design achieves the expected goals. |
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| Keywords: | AFDX network end system scheduling algorithm network protocol stack |
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