Efficient data validation for geographical interlocking systems

Abstract In this paper, an efficient approach to data validation of distributed geographical interlocking systems (IXLs) is presented. the IXL paradigm, track elements are controlled by local computers communicating with other control components over and wide area networks. The overall logic these track-side remote server that may even reside in one or more cloud farms. Redundancy introduced ensure fail-safe behaviour, fault-tolerance, increase availability system. To cope configuration-related complexity such IXLs, software designed according digital twin paradigm: physical associated objects implementing supervision for element. communicate each high-level logical channels realised communication mechanisms. objective article explain how configuration rules type IXLs can be specified temporal formulae interpreted on Kripke Structure representations configuration. Violations using from a well-defined subset LTL. By decomposing complete model into sub-models corresponding routes through model, LTL checking problem transformed CTL which highly algorithms exist. Specialised rule violation queries hard express simplified checked faster performing sub-model transformations adding auxiliary variables states underlying Structures. Further performance enhancements achieved concurrently. presented here has been implemented tool applied Siemens Mobility IXLs.