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Visualization and control of the alarm system at Florenc metro station in Prague

NTD group a.s., the Czech joint-stock company from the city of Usti nad Labem, specializing in distribution of railway services, installed a new central (SCADA-based) control system to provide reliable monitoring & control of Florenc metro station, line B. The communication between the JOP Control Room and alarm devices is carried out by the Reliance system.



The JOP Control Room provides

  • Monitoring of the current state of each alarm device as well as the situation on the tracks in the chosen format (exhaustive view, closeup)
  • Controlling the traffic in real–time via interactive screens created in the Reliance system
  • Allowing workers to monitor the alarm system of the metro station and detect failures via Diagnostic Console
  • Recording essential events and states of all devices and creation of statistics from recorded data
  • Real-time replay of all data recorded on the control computer – this feature is called Postmort.
  • Uploading traffic data from the alarm system to the master control system, receiving and executing commands

Control room of Florenc metro station

Control room of Florenc metro station


The JOP Control System consists of


Indicating and command level:


  • PCs with the Windows NT operating system
  • Control device installed at Metro line B by Unicontrols a.s.
  • Emergency panel by NTD s.r.o.


Control level:


  • Communication PCs with the Windows NT operating system
  • Visualization SW for the JOP Control Room with interactive screens and postmort option created in the Reliance SCADA application.
  • TECOMAT NS 950 RAPID PLC with application


Execution level:


  • AZD 71 relay control device


Controlled devices:


  • Railyard alarm devices (switches, signalling devices, track circuits, etc.)


Example of a visualization window

This is a flash animation.

You can also see recorded Postmort in full size.

Florenc metro station, PraguePrague Public Transit Co. Inc. banner

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