Global
Security Offering
Closed Caption TV (CCTV)
is part of ALSTOM’s global
security offering for transit
authorities. The global
security covers passengers,
installations and operations, and provides:
• Passive and active video
surveillance
• Fire and Gas detection
• Anti-intrusion and access management
• Fusion of the security system and the passenger
information system at the Control Centre via a generalized
Human Machine Interface
• Routing of the security related information via
other systems; SCADA for infrastructure, ATS for trainborne
information and passenger information system to inform
passengers on what to do
Overview
End-to-end multi-modal integrated trainborne
and station CCTV system for platforms, corridors,
buses, trams and trains.
• Detects security hazards,
intrusions, breaches against passengers or personnel
• Integrates seamlessly with passenger information,
emergency intercom and other systems: for example,
the video surveillance system records at a higher frame
rate when the emergency intercom is activated
• Uses the existing network infrastructure, therefore
reduces costs
• Enables live images transmission from vehicles
to control centres, especially suitable for driverless trains
• Stores video on-board trains and in stations,
full or on alarm, on removable hard drives
• Allows remote camera control
• Handles pre-post alarms
• Supports several resolutions: FULL, CIF and QCIF
• Supports high quality video frame rate to provide
facial recognition at a reasonable distance while the persons
are in movement
• Records up to 25 images per second per camera
PAL (30 images per second per camera NTSC) to catch
fast movement
• Uses efficient real-time compression techniques
that are time and space oriented to generate compact streams:
wavelet improves the classical compression techniques
by a factor of 4 to 8
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