A mobile agent approach for distributed train control and monitoring system.

by Wong, Wan-Lung.Thesis (M.Phil.)--Chinese University of Hong Kong, 1998.Includes bibliographical references (leaves 88-92).Abstract also in Chinese.Chapter 1 --- Introduction --- p.1Chapter 1.1 --- Mobile Agent Systems --- p.1Chapter 1.2 --- Distributed Control Systems --- p.2Chapter 1.3 --- Motivation of the Dissertation --- p.3Chapter 1.4 --- Related Work --- p.3Chapter 1.5 --- Overview of the Dissertation --- p.5Chapter 2 --- Mobile Agents --- p.6Chapter 2.1 --- Definition of an Agent --- p.7Chapter 2.1.1 --- A Weak Notion of Agents --- p.8Chapter 2.1.2 --- A Stronger Notion of Agents --- p.9Chapter 2.1.3 --- Other Attributes of Agents --- p.9Chapter 2.2 --- Characteristics of Mobile Agents --- p.10Chapter 2.3 --- Programming Languages for Mobile Agents --- p.11Chapter 3 --- A Mobile Agent Framework --- p.16Chapter 3.1 --- The Framework --- p.16Chapter 3.1.1 --- Agent Operations --- p.19Chapter 3.1.2 --- Agent Life Cycle --- p.23Chapter 3.1.3 --- Agent Migration Server --- p.26Chapter 3.1.4 --- Communication Server --- p.28Chapter 3.1.5 --- Facilitator --- p.30Chapter 3.2 --- April as a Mobile Agent Language --- p.30Chapter 4 --- An Agent Based Distributed Train Control and Monitoring Sys- tem --- p.32Chapter 4.1 --- Introduction to DiTCAMS --- p.33Chapter 4.2 --- Terminology in DiTCAMS --- p.34Chapter 4.3 --- Architecture of DiTCAMS --- p.34Chapter 4.3.1 --- Active Agents --- p.36Chapter 4.3.2 --- Passive Agents --- p.38Chapter 4.4 --- Agent Collaborations --- p.41Chapter 4.4.1 --- Track Resource Allocation --- p.41Chapter 4.4.2 --- Sensor Triggering --- p.42Chapter 4.4.3 --- Hardware Control --- p.42Chapter 4.4.4 --- Train Migration --- p.42Chapter 4.5 --- Other Implementation Issues --- p.46Chapter 4.5.1 --- Track Resource Management --- p.47Chapter 4.5.2 --- Railway Topology Encoding --- p.50Chapter 4.5.3 --- Train Location Determination --- p.54Chapter 4.5.4 --- Train Speed Control --- p.62Chapter 4.5.5 --- Collision Prevention and Recovery --- p.64Chapter 4.5.6 --- Improving Efficiency of April for Real-time Execution --- p.65Chapter 5 --- Discussions --- p.72Chapter 5.1 --- On Enabling Mobile Agents --- p.72Chapter 5.2 --- Cost in Achieving Mobile Agents --- p.74Chapter 5.3 --- On Using April as a Mobile Agent Language --- p.75Chapter 5.4 --- History of DiTCAMS --- p.76Chapter 6 --- Concluding Remarks --- p.79Chapter 6.1 --- Contributions --- p.79Chapter 6.2 --- Limitations --- p.80Chapter 6.3 --- Future Work --- p.81Chapter A --- Hardware Components --- p.83Chapter B --- A Concurrent Administrator Based Train System Using C --- p.85Bibliography --- p.8