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Synthesis and optimization of railway signalling layouts Bjrnar - - PowerPoint PPT Presentation
Synthesis and optimization of railway signalling layouts Bjrnar - - PowerPoint PPT Presentation
Synthesis and optimization of railway signalling layouts Bjrnar Luteberget FMCAD student forum, Oct 31, 2018 Layout of signals and detectors Layout of signals and detectors Layout of signals and detectors Layout of signals and detectors
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Layout of signals and detectors
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Layout of signals and detectors
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Layout of signals and detectors
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Layout of signals and detectors
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Verifjcation of layout capacity
Track plan Capacity specs. Layout (signals and detectors) Verifj- cation
✓ ✗
Input Input
Manual (engineering) Automatic
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Verifjcation of layout capacity
Track plan Capacity specs. Layout (signals and detectors) Verifj- cation
✓ ✗
Input Input
Manual (engineering) Automatic Synthesis
Initial guess Feedback
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Branching: ( discrete planning)
◮ Initial guess: Maximal schedulability design.
Guard every branch
◮ Optimization: fjnd unneccessary signals by planning.
Non-branching: ( local search)
◮ Add/remove signals to improve timing. ◮ Move signals locally to improve timing.