System-level modeling in the ADEPT environment of a distributed computer system for real-time applications

2002 ◽  
Author(s):  
A.K. Ghosh ◽  
B.W. Johnson ◽  
J.A. Profeta
Keyword(s):  
Real Time ◽  
Computer System ◽  
System Level ◽  
Distributed Computer System ◽  
System Level Modeling ◽  
Real Time Applications

Energy Optimization of Mixed-Criticality Distributed Real-Time Embedded Systems

2020 ◽  
pp. 2150085
Author(s):  
Ruoxu Sun ◽  
Jinyu Zhan ◽  
Wei Jiang ◽  
Qi Dong ◽  
Yalan Ye
Keyword(s):  
Real Time ◽  
System Level ◽  
Optimization Approach ◽  
Real Time Systems ◽  
Safety Requirements ◽  
Static Scheduling ◽  
Dynamic Voltage ◽  
Real Time Applications ◽  
Time Systems ◽  
Mixed Criticality

In this paper, we propose a system-level optimization approach for mixed-criticality distributed real-time systems with safety and energy considerations. We firstly depict a mixed-criticality distributed task model for real-time applications, in which the safety of the system is influenced by dynamic voltage and frequency scaling (DVFS). Due to the huge complexity of solving the problem optimally, a heuristic algorithm is proposed to approach the system-level optimization through a quasi-static scheduling strategy. The experiments demonstrate the efficiency of the proposed approach, which can obtain energy consumption while guaranteeing the system safety requirements.

Integrated Real-Time Event Based Cost Modeling of Battery Manufacturing System

2014 ◽  
Author(s):  
Yang Li ◽  
Qing Chang
Keyword(s):  
Real Time ◽  
Manufacturing System ◽  
System Modeling ◽  
Integrated System ◽  
Cost Modeling ◽  
System Level ◽  
System Level Modeling ◽  
Event Based ◽  
Unified Index

Information of battery manufacturing system is becoming increasingly transparent, detailed and real-time. Despite the big potential in improving productivity, the advantages of information are not fully realized due to a lack of system level modeling. Motivated by this need, we develop an integrated system modeling approach to quantify the systematic impact of stations and supporting activities with a unified index called event based cost (EBC). The analysis provides a severity ranking of stations and supporting activities. A case study is conducted to demonstrate the application of the model in a battery production system and its ability to facilitate decision making.

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