Studies on Digital-Controller Configuration Design and Its Synchronization Control Using Multiple Digital Signal Processors.

1.多处理器数字控制器及其同步方案的建模每个处理器都需要遵守时序约束以避免命令信号冲突，并且最好没有空闲时间间隔。对反馈型和程控型控制器都进行了研究并选择了合适的模型，重点是同步能力的验证。从数字的角度来看，离散时间系统的表示是合适的。状态反馈采用增益矩阵模型，程序控制采用离散传递矩阵模型。作为一个副产品，人们了解到鲁棒稳定补偿方法还不够成熟，不能应用。因此，我们研究和开发了一种新的更实用的稳定方法。2.最小吞吐量时间配置和同步控制对于单输入单输出控制器，提出了一种共享存储器和总线的配置。我们有…进一步研究了各处理器之间的计算加载机制，提出了一种新的同步机制，以达到最小的吞吐量时间。结果还扩展到多输入和多输出的情况。3.验证所提出的方案已经开发了几个支持计算机软件工具来验证所提出的方案，并在设计过程中使用：数字信号处理器命令生成器、吞吐量估计器和混合仿真器。数字信号处理器命令生成器给出了以处理器命令编写的程序清单，用于给定数字控制器的特性、配置和同步控制协议。吞吐量估计器评估给定控制程序的吞吐量效率。混合仿真器对包括模拟对象、A/D和D/A转换器以及数字控制器在内的数字控制系统进行仿真。用户可以使用不同的算法选择不同类型的转换器，并且可以使用基本块将对象建模为框图。较少

1.Modeling Multi-Processor Digital Controllers and Their Synchronization SchemeEach processor is required to observe timing constraints to avoid command signal collision and is preferred not to have idling time intervals. Appropriate models have been investigated and selected for both feedback-type and program-controlled-type controllers with an emphasis on the verification of synchronization capabilities. It was concluded that discrete-time system representation is appropriate when viewed from digital side. We have adopted a gain matrix model for the state feedback and discrete-time transfer matrix model for program control. As a by-product, it was learned that robust stability compensation method is not mature enough for applications. Hence, we have investigated/developed a new and more useful stabilization method.2.Minimum Throughput-Time Configuration and Synchronization ControlFor single input and single output controllers, a shared memory and bus configuration was proposed. We ha … More ve investigated computational loading mechanism among each processor and proposed a new synchronization which achieves the minimum through-put time. The results were also extended to multiple-input and multiple-output cases.3.Verifying The Proposed SchemeSeveral supporting computer-software tools have been developed to verify those proposed schemes and also to be utilized in the process of design : Digital Signal Processor Command Generator, Throughput Estimator and Hybrid Simulator. Digital Signal Processor Command Generator gives program list written in the processor's command for a given digital-controller characteristics, the configuration and synchronization control protocol. Throughput Estimator evaluates throughput efficiency of a given control program. Hybrid Simulator simulates those digital control systems which include analog plant, A/D and D/A converters and digital controllers. Users can select different types of converters with different arithmetic employed and plants can be modeled as a block diagram using elementary blocks. Less