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concerned with privacy, and therefore favour a network system.
Andrew Luk, Technical Facilities Manager of Vodafone Australia,
says Vodafone is considering the shift to an internet-based
control system, as they do not currently have a main system,
and feel the need to acquire a system that is integrated.
According to Mr Luk, an internet-operated system would be an
excellent tool for universal access, however, this is far from the
only consideration when selecting a system.
"Cost effectiveness and reliability for critical operations are
greater considerations, and a good technical support facility,
access to necessary parts and so forth", says Mr Luk.
Nathan Atkinson, of Griffith University in Brisbane, says of the
system in place there:
"Griffith University's system is linked to all buildings via a
wide-area network, operated internally, linked to each other via
fibre, while other campuses are linked via microwave.
Ease of use is the key criterion, a system that can be easily
navigated by those who don't use it regularly."
Interestingly, Atkinson played down the significance of cost
effectiveness.
"All systems are expensive", he said. "The systems are not quite
there yet in terms of cost effectiveness. But overall our system
is fantastic."
"The internet has provided users with
options, rather than overhauling the entire
way building automation systems are used.
Not everybody has confidence in web-based
technology.
A paper published by AIRAH in January 2001, Facilities
Management in the 21st Century, anticipated an internet-led
revolution in building control systems, but it would be fair to
say that this has not happened yet.
"Recent developments in open communication standards for
building automation systems, as well as the pervasive use of
internet and intranet technologies, have created a flood of new
options for owners and operators of distributed facilities…
These advances will provide better controls capability and help
enhance automated remote diagnostics, preventative
maintenance and monitoring of performance contracts."
The technology is in place for control systems to enter the
internet age, but presently, and perhaps permanently, the
significance of this is that it provides one more option for
operators, rather than a complete change in how control
systems work.
There are several benefits of good integrated systems
automation for building owners and operators that are worth
mentioning. Lower energy expenses are one straightforward
benefit, as well as speedier resolution of any system glitches.
Avoidance of litigation brought about by illness caused by
indoor air quality problems is another bonus, as well as less
tenant turnover, higher rents, and improved performance, all
due to better quality air.
THE OFFICIAL JOURNAL OF AIRAH - February 2003
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