On Automatic Turnout Control Based on Timed Automata

Because the real-time system is constrained by time, to design and verify it is a high challenge. Several timed automata are used to model an automatic turnout control system and an automatic control model of a turnout (TTCQ) is presented. UPPAAL is adopted to carry out the on-the-fly testing and it is proved that TTCQ has such characteristics as safety, efficiency and control. The method mentioned avoids the equivalent state explosion of the product, reduces the verification search space and provides a feasible, safe and intelligent control mechanism.