New systems are being designed to measure train position with extreme precision via the use of quantum navigation technologies.
Now in development within the UK; a new quantum inertial navigation system utilises ultra-sensitive sensors capable of detecting minute changes in both motion and rotation.
The technology aims to provide ultra-precise location information
© Network Rail
The system does not rely on external signals, allowing to to provide highly resilient positioning in environments where satellite signals are unavailable, including tunnels, dense infrastructure or areas affected by interference.
Being developed as a potential future alternative to fixed trackside positioning infrastructure; the technology is expected to enable a lower cost, more reliable, resilient system.
As part of the wider development programme, the Rail Quantum Inertial Navigation System (RQINS) has now been tested on a mainline railway for the first time anywhere in the world. The system was carried on a Great Northern train operated by Govia Thameslink Railway (GTR) between central London and Welwyn Garden City on Tuesday 3 March, providing real-world data in order to help illustrate how quantum positioning technologies might perform within the operational environment of a national railway network.
The milestone builds on a history of work undertaken by the Ministry of Defence and on Transport for London’s network, representing the next step in the development of quantum sensing technologies for use on heavy rail.
The development is being progressed through a specialist consortium led by MoniRail, working with Imperial College London, the University of Sussex, QinetiQ, PA Consulting and the National Physical Laboratory, with support from Innovate UK and the Department for Science, Innovation and Technology (DSIT). It is being convened by GBRX, the strategic innovation and technology body for Great British Railways.
Rail Minister Lord Peter Hendy, said:
For more than two centuries Britain’s railway has forged technologies that have shaped the modern world. The development of quantum inertial navigation continues that legacy. With these new capabilities, we’re preventing equipment failures, helping to boost our railway’s reliability and keeping passengers moving.
It’s all part of our plan to modernise track and train under Great British Railways, adopting world-leading technology that increases resilience to improve passenger experience while supporting jobs, growth and homes.