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首页> 外文学位 >Investigation into the tradeoffs of centralized versus distributed control architectures utilizing electronic gearing in PLC and PC-based servo system employing serial real-time communication.
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Investigation into the tradeoffs of centralized versus distributed control architectures utilizing electronic gearing in PLC and PC-based servo system employing serial real-time communication.

机译：在采用串行实时通信的基于PLC和PC的伺服系统中，利用电子齿轮对集中控制与分布式控制架构之间的取舍进行了研究。

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摘要

With limited budgets and increasing pressure to stay competitive, control specialists need information regarding the performance implications of their choices in hardware, parameters, and software. This study created a tool that control specialists can use to select the control platform that provides superior performance by detailing a methodology that investigated the effects of a motion control's architecture on the performance characteristics of a multi-axis tracking application. The methodology introduced in this paper can be implemented by control specialists easily since it eliminates hardware dependency and allows for easy targeting of the bottlenecks. To test this methodology, this study utilized both centralized and decentralized motion control architectures with a SERCOS interface to personal computer (PC) and programmable automation controller (PAC) based controllers implemented with ladder logic programming techniques.;The study focused on the development and validation of a testing methodology used to investigate impacts of coarse update rate, control platform, processor speed, and the distribution of axes on high performance multi-axis tracking applications. The study found that the bottlenecks migrate as control architectures and components differed. Distributed control outperformed centralized control architectures in each case and PAC-based control platforms outperformed PC-based platforms in servo performance, but PC-based platforms outperformed PAC-based platforms in scan time performance.
机译：由于预算有限且保持竞争压力越来越大，控制专家需要有关其选择的硬件，参数和软件的性能影响的信息。这项研究创建了一个工具，控制专家可以通过详细研究用于运动控制的体系结构对多轴跟踪应用程序的性能特征的影响的方法，来选择提供卓越性能的控制平台。本文介绍的方法可以轻松地由控制专家实施，因为它消除了对硬件的依赖，并且可以轻松地确定瓶颈。为了测试这种方法，本研究使用了集中式和分散式运动控制架构，以及与个人计算机（PC）和基于可编程自动化控制器（PAC）的SERCOS接口的，通过梯形逻辑编程技术实现的控制器。测试方法的概述，用于研究粗略更新率，控制平台，处理器速度以及轴分布对高性能多轴跟踪应用程序的影响。研究发现，瓶颈随着控制架构和组件的不同而迁移。在每种情况下，分布式控制的性能均优于集中式控制体系结构，基于PAC的控制平台在伺服性能方面优于基于PC的平台，但是基于PC的平台在扫描时间性能方面优于基于PAC的平台。

著录项

  • 作者

    Pierner, Tracy P.;

  • 作者单位

    Indiana State University.;

  • 授予单位 Indiana State University.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 165 p.
  • 总页数 165
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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