Train Control Language –
Teaching Computers Interlocking
Author(s)
J. Endresen, E. Carlson, T. Moen, K. J. Alme, Ø. Haugen,
G. K. Olsen & A. Svendsen
Abstract
Computer specialists are rarely trained in the world of tracks and trains, while
signaling experts are rarely computer specialists. This paper is about bridging the
gap between trains and computers with a specially designed language that
enables the signaling experts to create consistent train interlocking systems. The
language is supported by tailored tools created with open source technology on
the development platform Eclipse. From the formal definition of the language in
the form of a metamodel, a graphical editor is generated. The systems created
with that graphic editor are then transformed for several purposes that are
internally consistent. The editor makes sure that the systems conform to the
language, and the language makes sure that the systems conform to the way
interlockings are designed. The transformations then produce interlocking tables
and even actual code automatically from the graphically created model.
Keywords: interlocking, Computer Based Interlocking (CBI), code generation,
Domain Specific Language (DSL), eclipse.
1 Introduction
A railway interlocking system is a system that prevents conflicting and
dangerous train movements through a network of tracks and ensures that no clear
signal is given to a train unless the requested route is safe and locked. Today all
new interlocking systems are computer based (CBI). Configuring the
interlocking system for a particular station has been a manual process requiring
multiple steps from creating and verifying the requirements (e.g. interlocking
tables) to validating the final code. This paper describes a Domain Specific
Keywords
interlocking, Computer Based Interlocking (CBI), code generation,
Domain Specific Language (DSL), eclipse.
Related Book
Other papers in this volume
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