基于改进RMS算法的多核嵌入式系统总线周期调度表优化设计  

Optimization Design of Multiprocessor Embedded System Bus Periodic Scheduling Table Based on an Improved RMS Algorithm

作　　者：于海心[1] 王晶[1] 李晓锋[1] YU Haixin;WANG Jing;LI Xiaofeng(Beijing Institute of Control Engineering,Beijing 100000,China)

机构地区：[1]北京控制工程研究所,北京100000

出　　处：《火炮发射与控制学报》2021年第3期71-75,共5页Journal of Gun Launch & Control

摘　　要：远程指挥控制决策系统是军事作战体系的“神经中枢”,有效、高速、可靠地获取战场信息一直是制约战场态势感知的一个瓶颈。针对这个问题,讨论一种同构的多核嵌入式系统,该系统能够通过控制多条总线增加信息获取源,并通过信息源的备份增加信息的可靠性和稳定性。针对该系统的总线周期表优化问题,给出了系统任务模型,对RMS算法改进策略,并进行改进RMS算法可调度性分析。实验结果表明该算法解决了RMS算法适用于多核嵌入式系统的瓶颈问题,能够在多个处理器中同步进行总线资源调度,并且可以满足总线动态负载平衡,提高总线传输效率和系统的可靠性。The remote command and control decision-making system is thenerve center of military combat systems.Efficient and high speed acquisition of battlefield information is a bottleneck constraining battlefield situation awareness.In response to this question,this paper talks about a optimization method of the homogeneous multiple core embedded system mentioned.The embedded system can increase the source of information by controlling multiple buses,at the same time the increase of backup can improve information reliability and stability.Targeting the problem of bus periodic scheduling table optimization in such a system,a system task model is established and an improved RMS algorithm is proposed.The allocability of the algorithm is also analyzed.the result of experiment shows that the improved RMS algorithm breaks through the bottleneck that is present in the homogeneous multiple core embedded system.It is capable of simultaneous bus resource allocation among multiple processors.The scheduling table can help reach system bus dynamic load balance,simultaneously improving bus transmission efficiency and system reliability.

关 键 词：多核嵌入式系统 改进RMS算法 1553B总线 总线周期调度表 

分 类 号：TJ861[兵器科学与技术—武器系统与运用工程]