| Description |
1 online resource (xix, 200 pages) : illustrations (some color) |
| Series |
Technologien für die intelligente Automation/Technologies for Intelligent Automation ; Band 6 |
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Technologien für die intelligente Automation ; Bd. 6
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| Contents |
Kurzfassung; Abstract; Acknowledgement; Contents; Abbreviations; 1 Introduction; 1.1 Motivation; 1.2 Objective; 1.3 Outline of the document; 2 Fundamentals; 2.1 Production Systems; 2.1.1 Automation Systems; 2.1.2 Networked Control System; 2.2 NCS Communication Requirements; 2.2.1 Timeliness in NCS; 2.2.2 Communication Reliability in NCS; 2.2.3 Industrial Communication Requirements -- Summary; 2.3 Industrial Network Systems; 2.3.1 Industrial Ethernet based Protocols -- Real-Time; 2.3.2 Industrial Ethernet based Protocols -- Reliability; 2.4 Engineering of Industrial Network Systems |
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2.5 Re-engineering of Industrial Network Systems2.6 Problem Definition; 2.7 Solution Approach; 3 Timeliness in Ethernet Based Network Control Systems; 3.1 Network Topology; 3.2 Ethernet Standard; 3.3 Ethernet Standard Real-Time Capabilities; 3.4 Ethernet Based Time-Triggered Protocols; 3.4.1 IEEE 802.1 TSN; 3.4.2 Time Triggered Ethernet (TTEthernet); 3.4.3 PROFINET IRT; 3.4.4 EtherCAT; 3.4.5 Summary of Ethernet Based Time Triggered Protocols; 3.5 Communication Scheduling in TTEB Systems; 3.6 Complexity of the Scheduling Problem in TTEB-Systems |
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3.7 Scheduling Problem Formalisation and Modelling3.7.2 Start Time (si); 3.7.2 Start Time (si); 3.7.3 Processing Time (pi); 3.7.4 End-to-End Time (ei); 3.7.5 Task Deadline (di); 3.7.6 Completion Time; 3.7.7 Scheduling Constraints; 3.8 Scheduling Using Mixed Integer Linear Programming (MILP); 3.8.1 The Disjunctive TTEB Scheduling Model; 3.8.2 MILP Scheduling Results; 3.9 Proposed Scheduling Approach; 3.9.1 Slip-Stream Effect -- Working Principle; 3.9.2 Theoretical Analysis of the Slip-StreamScheduling -- Line Topology; 3.9.3 Slip-Streamin Tree Topology |
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3.9.4 Theoretical Analysis of the extended slip-stream effect -- Tree Graphs3.9.5 Slip-streamin Ring topology; 3.9.6 Theoretical Analysis of the proposed approach -- Graphs with Cycles (Rings); 3.9.7 Slip-streamin Topology, Where Multiple PLC Ports are Involved; 3.10 Clock Synchronisation Accuracy and Scheduling; 3.10.1 Accuracy Determination Methods; 3.10.2 Benchmark of the Synchronisation Accuracy Determination Methods; 3.10.3 Considering Synchronisation Accuracy in the Schedule; 3.11 Concluding Remarks; 4 Communication Reliability; 4.1 Redundancy methods; 4.2 Dynamic Redundancy Methods |
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4.2.1 An Approach to Improve Dynamic Redundancy Protocols4.2.2 Theoretical Analysis of the Failure Detection Time; 4.2.3 Dynamic Redundancy and Scheduling; 4.3 Static Redundancy Methods; 4.3.1 Path Search Aspects; 4.3.2 2-Disjoint Paths; 4.3.3 Possibly Disjoint Path Search Method; 4.3.4 Theoretical Analysis of the Possibly Disjoint Path Search Approach; 4.3.5 Static Redundancy and Scheduling; 4.4 Concluding Remarks; 5 Seamless Reconfiguration of the Industrial Network System; 5.1 Reconfiguration of the TTEB Industrial Network System; 5.2 Identification of a INS Change -- Scheduler Input |
| Summary |
The objective of this dissertation is to design a concept that would allow to increase the flexibility of currently available Time Triggered Ethernet based (TTEB) systems, however, without affecting their performance and robustness. The main challenges are related to scheduling of time triggered communication that may take significant amount of time and has to be performed on a powerful platform. Additionally, the reliability has to be considered and kept on the required high level. Finally, the reconfiguration has to be optimally done without affecting the currently running system |
| Bibliography |
Includes bibliographical references |
| Notes |
Online resource; title from PDF title page (SpringerLink, viewed March 30, 2017) |
| Subject |
Ethernet (Local area network system)
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Wireless communication systems.
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COMPUTERS -- Networking -- Local Area Networks (LANs)
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COMPUTERS -- Data Transmission Systems -- Wireless.
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Ethernet (Local area network system)
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Wireless communication systems
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| Form |
Electronic book
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| ISBN |
9783662546505 |
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3662546507 |
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