针对目前在控制系统的可重构性评价中较少考虑系统能耗、可靠性限制的问题,文章研究了约束条件下卫星姿态控制系统可重构性度量及评价方法,建立了含执行机构失效因子的控制系统模型,并基于可控性格兰姆矩阵得到能耗约束下可重构性度量指标;然后将可靠性指标引入到系统可重构性评价度量中,进一步缩小可重构性集合;最终形成综合两种约束的可重构性评价方法。通过对含动量轮系统的重构构型仿真,得到约束前后的可重构性对比,仿真结果符合实际分析,验证了该方法的有效性。

Since the energy consumption and system reliability constraint was rarely considered in the control system reconfigurability evaluation,the reconfigurability measurement and evaluation method were studied under the constraints for the satellite attitude control system.The control system model including the actuator failure factor was established.Based on the controllability Gramian Matrix, the reconfigurability measurement index under energy consumption was obtained. Furthermore, the control reconfigurability index was introduced into the system reliability constraint, which narrowed the set of reconfigurable systems. Finally,the combined index was obtained. From the control system with momentum wheels simulation, the reconfigurability comparison results among different constraints can be acquired.The results show that this evaluation method is effective.

在分析现有可重构系统的基础之上,提出了一种先进的可重构制造系统,并通过一个模型对该可重构制造系统进行了描述,包括组织形式、逻辑、物理方面的架构等。在系统描述方面使用了MOF类图,认为系统的体系结构及配置是可以分开的。

A state of the art for reconfigurable manufacturing systems based on the current ones is put forward .The model to describe the systems is introduced ,which includes organizational form ,the logical and physical aspects of architecture .MOF class diagrams are used in the model ,and the architecture of the system is liked to be separated from the configuration .

任务编译器是粗粒度可重构处理器系统中的重要支撑软件。针对 REM US‐II 可重构处理器系统架构特点，提出了基于循环优化的任务编译方法。该方法通过核心循环模版提取、配置信息复用及数据流优化，达到缩短编译时间，降低重构开销，提高可重构系统执行效率的目的，同时大幅缩小配置信息体积。实验结果表明，该配置方法与传统可重构编译技术相比，编译时间缩短40％，总配置信息量减少超过60％。

Task compiler is a vital element of the coarse‐grained reconfigurable computing system .In this paper ,a loop‐level optimized compiling method for REM US‐II reconfigurable architecture is provided .This method reduces compilation time ,the overhead of reconfiguration and the amount of the configuration contexts based on kernel abstracting and data flow optimization . According to experimental results , proposed compiling method reduces compilation time by 40% and configuration contexts amount by 60% , compared with conventional compiling techniques .

针对多目标优化的可重构性指标分配问题，给出了一重和二重可重构性指标的计算方法。结合多目标优化特点和可重构性指标的定义建立了可重构性指标分配的多目标优化模型。在此基础上提出了一种多评价函数法，用于系统可重构性指标分配，该方法对相互冲突的多个目标建立不同的评价函数，通过在可行解内协调得到最优化结果，最后将其应用于串联系统进行仿真，并与线性加权和法的结果作比较，结果显示基于多评价函数的可重构性指标分配方法更具有效性。

The paper aims to find a reasonable solution to the problem of reconfigurability allocation for the multi-obj ective optimization.The concept and the computing method of reconfigurable degree for the reconfigu-rable system considering component failure are proposed.Combining the theory of multi-objective optimization and the definition of reconfigurability,allocation model in general is proposed.We obtain the method solving the problem of optimization allocation for conflicting objectives,in which different evaluation functions for conflict-ing objectives are established.Then,the optimal result is concluded by weighing of the feasible results.As the representative multi-objective optimization method,the weighted sum method is compared with the proposed method.The simulation results demonstrate superiority of the proposed method.

可重构系统可以根据应用程序运行时的需要动态地选择不同配置硬件加速方案。动态可重构多处理器片上系统是一种面向多种应用/标准之间资源共享、减少能源损耗和提升系统性能(专用DSP或者定制协处理器)的有效方法。提出一种根据应用不同需求进行动态软硬件重构的方法。

Determines precisely when the running application needs to be accelerated. The dynamic reconfigurable MPSoC is an interesting approach to optimize the sharing of resources between different applications / standards, minimize energy consumption and optimize system perfor-mance(DSP specific or coprocessor specific). Presents an adaptive method to perform on-the-fly HW/SW reconfiguration, according to ap-plication requirements to optimize performances.