嵌入式系统中锁存器电路节能设计仿真研究

发布时间：2018-05-13 03:34

本文选题：嵌入式系统 + 锁存器电路　；参考：《计算机仿真》2017年08期

【摘要】：对嵌入式系统中锁存器电路进行节能设计,能够有效提升系统的稳定性。对锁存器电路的节能设计时,由于系统需要调整空闲时间,导致得到的系统最小能耗值不准确。传统方法将锁存器电路状态差异度作为适应度函数,约束系统最小能耗值的波动,但迭代次数过多,导致节能效果不理想。提出基于禁忌策略的嵌入式系统中锁存器电路节能设计模型。组建嵌入式系统锁存器电路动态能耗模型,给出嵌入式系统运行周期内电路开关电容、电源电压以及频率之间的关系,得到电路电压转换消耗的转换能量,建立锁存器电路电压调度任务的优先序列,利用禁忌搜索策略通过调整已有调度增加任务的空闲时间,得到嵌入式电路系统最小能耗值,组建嵌入式系统中锁存器电路节能设计模型。仿真结果表明,所提模型设计的锁存器电路具有较好的瞬态特性和更低的功耗。
[Abstract]:The energy-saving design of latch circuit in embedded system can effectively improve the stability of the system. In the energy saving design of latch circuit, the minimum energy consumption is not accurate because the system needs to adjust the idle time. The traditional method regards the state difference of the latch circuit as the fitness function, constrains the fluctuation of the minimum energy consumption of the system, but the number of iterations is too many, resulting in the energy saving effect is not ideal. This paper presents an energy saving design model of latch circuit in embedded system based on Tabu strategy. The dynamic energy consumption model of latch circuit in embedded system is established. The relationship among circuit switching capacitance, power supply voltage and frequency during the running period of embedded system is given, and the conversion energy consumed by circuit voltage conversion is obtained. The priority sequence of voltage scheduling tasks in latch circuits is established and the minimum energy consumption of embedded circuit system is obtained by adjusting the idle time of the existing scheduling by using Tabu search strategy. The energy saving design model of latch circuit in embedded system is established. The simulation results show that the latch circuit designed by the proposed model has better transient characteristics and lower power consumption.
【作者单位】：北华大学计算机科学技术学院;
【基金】：吉林市科技计划项目(2015334003) 吉林省科技发展计划项目(20150441003SC)
【分类号】：TP368.1

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