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Level crossing with additional train protection for greater safety
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HN-P vital processor system
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HVIP, HANNING & KAHL Vital Interlocking Processor
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HVD vehicle detection system
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Infrastructure & Signalling technology for trams and light rail vehicles

Control systems

The Vital Processor System HN-P is modular and tailored to customer requirements. At the heart of the system is two-channel microprocessor technology with an exemplary safety profile up to SIL 3. Basic installations and complex requirements can be efficiently implemented with the Vital Processor System HN-P. Features like the electronic event recorder, connection of external systems and additional components, and integration into a networked communication structure ensure a high degree of flexibility.

Today, complex demands are made on vital processor systems as core components in control and safety technology, such as automatic train control and electronic interlocking, which call for safety integrity level (SIL) 4. To fulfil these tasks, we have designed the new vital processor system HVIP, HANNING & KAHL Vital Interlocking Processor.

The concepts we have elaborated consider current and future market requirements, customer wishes and modern technology. The HANNING & KAHL Public Process Data Interface (PPDI) in conjunction with modern LAN interface technology ensures future-proof realisation of process visualisation and telecontrol. Complex installations are simplified by division into control segments with high availability. An adequate number of interfaces and data services has been defined and developed. Standard peripheral equipment can be connected via a special BUS.

From reliable vehicle detection to communication of occupation status (occupied/free) as a safe potential-free contact, the HVD vehicle detection system is based on the vital processor system HN-P and HVIP.
The blocking circuit and/or the track circuit also in combination with the mass detector detect the rail vehicle passively in the track area to be safeguarded.

The HLUmulti Controller forms the technical basis for non-safety relevant applications. These can be applications like interfaces to traffic signalling installations or gate controllers, switch-on of signals (request signals, matrix signals), setting-command processing by communication systems, point heating, time synchronisation via radio-controlled GPS clock, processing of substitute requests, such as key switches, pushbuttons and formation of a route manager. It enables rapid and economically-efficient software maintenance without intervention in existing safety-relevant software