SECURITY 3 Part SerieS Part 1 AM 1 18:
Protecting your visitor attraction Part 2 AM 1 18:
Training your security team
Using network video and aUdio systems
Part 3 AM 2 18:
Using IP video and audio
Nigel Peers, senior consultant at NW Security Group, looks at how modern network-based video surveillance and audio systems can be used for much more than just safety and security
uring my time in the security industry and my previous role as security manager at Chester Zoo in the UK, I’ve seen huge advances in technology that have changed the way surveillance cameras are used by organisations of all sizes. One interesting area of development is the increasing use of network audio, allowing speakers to be connected via the local network. This article looks at how network video and audio systems are not only helping protect staff and visitors at attractions, but how the technology can also help with operational efficiency gains and the capture of valuable business intelligence.
Why network video? Network technology is deployed over an IT network and the use of network video for surveillance camera systems has been steadily growing over the last couple of decades. This growth has been driven as organisations discover the benefits of network-based video surveillance
The Axis Q6000-E Mk II features four 2MP sensors, providing a complete 360° field of view over large areas
systems over their old analogue CCTV systems, particularly their versatility and scalability. When the first network camera was created in 1996, it began an era of innovation that’s seen video surveillance transcend lowresolution images recorded on VHS to the detailed, high-resolution images of the digital age that can be quickly processed and searched to support realtime decision making. The term “CCTV” may have stuck, but the technology has evolved.
Network audio complements video Video surveillance allows you to monitor and review. Audio allows you to communicate and interact. When you combine audio with video, your operational toolkit becomes far more effective. For example, in a large site, using an outdoor horn speaker in conjunction with surveillance cameras can enhance perimeter protection. A common technique
Nigel Peers, senior consultant at NW Security Group is to play a warning message when surveillance cameras detect someone loitering near a fence or entering a restricted area of the site outside of normal opening hours – the message can even be automated. Often, potential criminal activity can be deterred as soon as the suspect realises their presence has been detected. If you have patrolling guards on site they may still be some distance away, so the use of an audible warning can put someone off the idea of scaling a fence while security personnel make their way to the location. Another technique is to equip the CCTV control room with a microphone that security staff can use to issue advice or instructions via speakers. With a network audio system, the speakers on the network can be selected individually or in zones, even the whole site. Combining audio and video this way allows staff to manage scenarios where announcements need to be made to select groups of visitors in particular areas, supporting effective communications between personnel at the scene and a central security office or CCTV control room. As business hours approach closing time, network audio can be used to announce a reminderof the site’s closure, for example. Visitor movement can be monitored via video, allowing staff to quickly attend to visitors that may need some form of assistance. This can be a huge time-saver for sites with large indoor areas as well as outdoor estate. AM 3 2018 ©Cybertrek 2018
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