Metro interlocking system

A FULLY REDUNDANT SYSTEM

The metro system is fully redundant from the intelligent system core software and hardware up to data communication. The CPU processors of the system are internally redundant based on the two-out-of-two architecture which guarantees the highest safety integrity level and availability. The availability is further enhanced by the built-in features of the system platform that allow CPUs and all active modules to be duplicated, thus operating in full hot-standby. Consequently, a failure of one module does not cause failure of the entire interlocking.

SAFE OPERATION IS SECURED IN ALL SITUATIONS

Simple and predictable maintenance measures, comprehensive diagnostic tools, easily changeable system components and comprehensive lifecycle management ensure the availability and functionality of the system. All system components used in the interlocking system can be changed and replaced with corresponding components. The system platform and system structure are modular and allow easy modifications and extensions when necessary.

CENTRALISED, DISTRIBUTED OR MIXED ACCORDING TO CUSTOMER NEEDS

The Mipro metro system is based on object-oriented design and programming principles and thus provides centralised, distributed or mixed architecture solutions for various environments, depending on the customer’s requirements. The distance between interlocking and field elements and the cable-laying work can thus be optimised and minimised.

The interlocking system provides easy integration in existing infrastructures and interfaces with several types of point machines, interlocking, signalling, track circuit, train detection and ATP equipment. It connects seamlessly with other external systems as well, such as fire door control safety systems, emergency stop handles and facility surveillance systems.