London trains on time… with new embedded database technology
By N Rozier, Raima Inc
Electricity+Control, May 2014 (pages 18-19)
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London Underground has deployed embedded database technology, Raima Database Manager (RDM). as a key component to help deliver capacity and reliability improvements on the Piccadilly Underground line. London is one of the world’s most dynamic capital cities and is well served by a network of eleven underground and interconnection train lines. The combined network comprises 270 stations and 402 kilometres (250 miles) of track.
The embedded database technology described holds and manages the mass of track occupancy, signal status and other vital data allowing real time display, interrogation and control in order to optimise visibility of the whole line network in real-time.
Embedded database technology from RDM is the software interface that organises and collates the continuous data stream that is being sent by points and signal position sensors into an optimised relational, hierarchical database; it simultaneously retrieves the data and communicates the relevant information to both machine and human controllers.
- London Underground switched to electric traction early last century and the supporting technology has been regularly updated ever since.
- London Underground has deployed the RDM embedded database technology as the key embedded database technology to help deliver capacity and reliability improvements on the Piccadilly Underground line.
- The deployed version of the RDM embedded database technology is configured for multi-core operation to make the best use of current and future microprocessor performance.