By F. Richard Yu
With quick inhabitants explosion, enhancing rail transit pace and means is strongly fascinating worldwide. Communication-based educate keep watch over (CBTC) is an automatic teach regulate method utilizing excessive capability bidirectional train–ground communications to make sure the secure operation of rail automobiles. This publication offers the newest advances in CBTC study. The contributed chapters from top specialists within the box disguise various points of modelling, research, layout, checking out, administration, deployment, and optimization of CBTC systems.
Advances in Communications-Based educate keep watch over Systems starts off with the historical past and evolution of educate signaling/train regulate structures. It introduces the most positive factors and structure of CBTC platforms and describes present demanding situations and winning implementations world wide. next contributed chapters talk about such key learn components as
- Nondestructive checking out innovations that may be hired to examine rails and fastening parts
- New instant channel modelling thoughts for underground tunnels and viaducts
- Advanced instant conversation structures to enhance CBTC communique availability
- Schemes to combine teach keep an eye on and train-ground communications by means of modelling the regulate process of a gaggle of trains in CBTC as a networked keep an eye on system
- Use of cognitive keep watch over to enhance educate keep an eye on functionality, contemplating either train–ground verbal exchange and teach control
The booklet comprises many aiding illustrations and tables besides a necessary set of references on the finish of every bankruptcy. With this publication, researchers and practitioners could be well-equipped to strengthen the learn and improvement during this very important field.
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Extra info for Advances in Communications-Based Train Control Systems
Each time the train runs over a transponder, the localization error is reset to the minimum. In addition to an equipped train, the prerequisite to start localization tests is to have the transponder installed on the roadbed. Similar to the radio tests, localization tests can be done with a train in the bypass mode where the CBTC is not controlling the train. Where the radio network is not available or the interlocking is not yet connected to the CBTC, the train may delocalize on diverging switches because positions of the switches are unknown.
Despite the use of powerful tools such as integrated system factory setup and simulators, it is frequent that anomalies that could have been discovered in the platform are discovered on-site. 1 Factory Test Goals The goals of the factory tests are described in . Most important ones are summarized below: ◾ Test all internal interfaces: All messages including commands and control between ATS and CC, ATS and ZC, and CC and ZC are tested with real equipment. When real equipment is used, the term “tests on target equipment” is employed.
In addition, any specific condition of a particular railroad environment is identified based on field’s measurements and tested against. A common practice in CBTC projects is to accept test results performed by the supplier during their product testing or for another project. This is the only time where test results from other projects may be considered. Difference between the equipment tested on other projects and the equipment for the current project should be analyzed very carefully during this process.
Advances in Communications-Based Train Control Systems by F. Richard Yu