Security IT networks
in a building. Says Meade: ‘Whether you want less integration depends on what functionality is actually required from the system. ‘From a security point of view we have to make sure
that we are encrypting the information. We have to make sure we are specifying equipment that can’t easily be hacked and is robust and reliable.’
Monitoring town centres can create challenges because of the large amount of equipment required
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that technology adds value: ‘In any integration project it is important that representatives from suppliers of the BMS and security systems are talking as early as possible in the design stage. Most BMS systems use open protocols such as BACNet, LON and KNX, so it will be easier to integrate other devices that use these protocols.’ David Frise, who gave a presentation about the
implications of IP for building designers at the CIBSE national conference in April, says that integrating IP with BMS will enable designers to improve communications in an organisation. He adds that there is an opportunity for building services engineers to add value by increasing the efficiency of communications. However, integration may not be the most
appropriate solution. It may be better to keep the security systems separate from the IT architecture
Video standards Siemens supplies local authorities with technology to monitor town centres. This equipment can create challenges for engineers because of the amount of surveillance equipment required. One way of reducing the amount of cabling is to use IP. Meade says IP enables the customer to use cost-effective structured cabling, fibre optic and wireless transmission technologies to distribute their video data. ‘We incorporate IP into most new designs because
it gives greater flexibility of control and the ability to distribute control and monitoring,’ says Meade. ‘You could have a second monitoring room. For a large urban system it is often necessary to have a second control point in case there is a major incident.’ By distributing the monitoring aspect to different
stakeholders, says Meade, the system delivers more than just security – management can observe the behaviour of staff, and engineers can observe equipment remotely. ‘By using video data and data provided by other systems such as an alarm the actual status is made far clearer and false assumptions are reduced.’ In future it should be easier to put IP into a building
because of the drive to implement open standards for video. ‘The main mover in the industry is to develop a standard for video,’ says Meade. l
Case study New stadium benefits from integration
The new Aviva stadium in Dublin has a security system that is integrated into the building’s infrastructure. The fire detection, CCTV, access control, intruder alarms, gas extinguishers and disabled toilet alarms are all integrated with the stadium’s Local Area Network (LAN) and IT infrastructure, says ADT, which manages the system. This integration enables security operators or
police to monitor and control each component from centralised workstations across the site, streamlining this process and helping to improve the efficiency and response time of operators to potential incidents, according to ADT. Another benefit of integration is that the control systems are easily moved, the company says. The stadium’s security system also demonstrates
the advantages of installing wireless Internet Protocol (IP) technology, says ADT Ireland’s Donal Colfer: ‘We said that if we changed the system to IP instead of running co-axials and data cables all over the place, we could reduce the impact of cabling.
‘The access control is completely IP and the
cameras are IP network video recorders. The IP was plugged into the LAN. The LAN in this case is fibre.’ He adds that there is some copper: ‘The cameras are Power over Ethernet. That reduces the requirement to put in a 240 volt cable for each camera’ – which has the added benefit of helping to reduce power consumption.
44
CIBSE Journal July 2010
www.cibsejournal.com
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