一种不精确离散事件系统建模与仿真  

Modelling and Simulation of an Imprecise Discrete Event System

作　　者：李妮 LI Ni(School of General Education,Xi’an Mingde Institute of Technology,Xi’an 710124,China)

机构地区：[1]西安明德理工学院,通识教育学院,陕西西安710124

出　　处：《微型电脑应用》2022年第3期48-51,共4页Microcomputer Applications

基　　金：2020年陕西省教育厅科研项目(20JK0953)。

摘　　要：为了提高含不精确计算下实时系统运行性能,提出一种不精确离散事件系统模型。系统的行为分为强制和可选两部分,从而使得处理器能够更可靠地完成实时任务调度。仿真分析的结果表明,通过丢弃可选任务作为防止溢出的措施,非精确模式下的平均响应时间小于精确模式,并由此进一步验证了所提出的方法的有效性。In order to improve the performance of real-time systems with imprecise computation, an imprecise discrete event system model is proposed. Behaviors of the system are divided into mandatory and optional parts, so as to achieve more reliable real-time task scheduling. Through simulation analysis, the results show that the average response time in imprecise mode is less than that in precise mode by discarding optional tasks as a measure to prevent overflow. The simulation results further verify the effectiveness of the proposed method.

关 键 词：实时系统 离散事件 不精确计算 任务调度 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]