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Effect of Microprocessor Features in Control Loops modeled in Simulink

机译:微处理器功能在Simulink中建模的控制回路中的影响

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摘要

The intensive use of simulation tools, such as simulink has made possible the development of embedded controllers using a plant model as a base. The performance in the simulation environment does not account however for the details of the hardware architecture. In this paper, a way to approximate some of the effects of the features of a particular microprocessor is derived for the Simulink environment. Worst-case execution time of the given control algorithm is performed as the first step. The computation error is also estimated for that particular algorithm. A block in the Simulink model could then express the computation latency due to hardware processing and the error due to computation accuracy. An automatic way of estimating these effects is presented here in order to achieve a higher integrability of software tools available for the designer. In particular, controller design involves deciding what hardware platform to choose for a particular application. Analysis and experimental results of a particular microprocessor are discussed.
机译:大量使用仿真工具(例如simulink)使开发以工厂模型为基础的嵌入式控制器成为可能。但是,仿真环境中的性能不能说明硬件体系结构的细节。在本文中,针对Simulink环境推导出了一种近似特定微处理器功能的某些影响的方法。第一步,执行给定控制算法的最坏情况执行时间。还针对该特定算法估计了计算误差。然后,Simulink模型中的块可以表示由于硬件处理而引起的计算延迟以及由于计算精度而引起的错误。本文介绍了一种自动评估这些影响的方法,以实现设计人员可用的软件工具的更高集成度。特别地,控制器设计涉及确定为特定应用选择哪种硬件平台。讨论了特定微处理器的分析和实验结果。

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