June 2007 |
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Allan M. Olbur, |
The advent of the automobile seatbelt heralded the consumer push towards safer vehicles. The ripple effect across the industry became a focal point of legislators who enacted laws to preserve lives. The evolution from these primitive belts to shoulder harnesses, front and side air bags and sturdier construction of the passenger cabin has provided an enabling technology and further research to facilitate the public good.
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Automated Building Technology
The proverbial battle between achieving aesthetics in building design and
complying with municipal codes for mechanical and structural engineering
requirements related to life-safety is fought daily. New construction readily
provides a canvas for creativity and the incorporation of the latest technology
offerings. Retrofitting existing structures poses challenges to preserving the
character of the buildings and typically results in substantial capital
investment. Like the seatbelt illustration, systems have progressed from
primitive fire sensors to robust converged heat, smoke, and fire, chemical,
biological, intrusion, etc. systems that provide a level of intelligence that
sets the platform for enriching assessment and tactical strategies related to
life-safety.
The Opportunity
The National Institute of Standards and Technology (NIST) has commenced an
initiative to study intelligent building information communication to first
responders. The Department of Homeland Security is making available grant monies
to non-profit institutions to enhance their security systems in venues and
structures to prevent terrorist threats to these assets and human capital.
Advancements in mobile high speed communications for converged voice, data and
video transmissions offers an opportunity to provide multi-path critical
realtime information to building management and responding agencies in the event
of an emergency.
The Solution
In many municipal jurisdictions, there are requirements to provide current
building floorplans as part of the emergency pre-plan. However, these paper
documents are not readily accessible to multiple agencies. Ironically, these
paper files are initially created with CAD packages that produce electronic
media. It is a requisite that these electronic files be made available to first
responders while en route and also be visibly displayed at the building entrance
in conjunction with the fire annunciator panel. The footprint of an in-building
computer server that is securely connected to the Internet and accessible by
first responders is no longer a luxury. Additionally, a visual interactive
display can provide levels of information related to viewing situations on
impacted floors via live camera feeds down corridors coordinated with the sensor
information provided by the automated building systems. Disparate building
systems can be uniformly integrated with the visual display. Realtime video,
data and voice can be delivered to mobile units responding to the scene. These
floorplans and updated disparate data can simultaneously be viewed on dispatcher
displays back at the Public Safety Answering Point (PSAPs or 911 Centers).
The confluence of both the 802.11 standard for high speed Internet and the excitement of the emerging ZigBee standard provide multiple transports for data transmission. Hardware that supports Ethernet over power, wireless and wired connectivity (including switches, routers, PCs and visual displays) can now integrate with touch points (sensors) that are BACnet or LON enabled. These server driven systems can be internally networked to the master building server that archives both historical and realtime data. Middleware that assimilates disparate database information, graphics and video can then be cohesively delivered to secure first responder networks.
Standards
Chicago Fire Department Deputy Chief Eugene Ryan, one of the foremost HAZMAT
experts in the United States, has been an advocate favoring realtime delivery of
in-building information to first responders en route to an incident. Critical
judgments related to choice of equipment and human intervention response is time
critical in an emergency. Assessment and tactics hinge upon obtaining accurate
information, particularly where events are fluid as to risk.
[an error occurred while processing this directive] David Holmberg at NIST references NEMA B-30 as the beginnings of the standard. NIST welcomes a consortium of commercial vendors, educational and governmental institutions to develop universal standards for moving proprietary data and graphics to an open middleware knowledge management software platform. This inclusive approach enables holders of information to share without compromising security, proprietary intellectual property or methodology. Facilitating a hierarchical approach to access enables users of the information to rapidly digest and interpret the results of focused queries. Response to threats and incidents can be accelerated without compromising the source of the information. Vendors of automated building systems certainly have a place at the table. Network and communication companies need to leverage existing infrastructure and promote new buildout of access points both within and outside of building structures. Cost mitigation can be measured against preservation of human life. Dual use visual signage can display content that is relevant to the venue, additionally featuring commercial messages that are fee based and, in the event of an emergency, broadcast focused directions and communications originated by life safety rescue personnel.
The Challenge
Cisco’s Connected Real Estate envisioned by John Chambers provides the
cornerstone for creating a discrete network within a building or campus
environment that can connect the internal local area network to the public wide
area network. Their recent investment in digital signage provides a platform for
expanding simultaneous communications to both the desktop and “public”
electronic signage network. ZigBee development to create a low power mesh
network that is supported via the emergency power grid can transmit critical
information over this discrete network that can be interconnected to the
in-building local area network. In-building mass notification systems can now be
augmented by simultaneous delivery of distress information to emails or handheld
devices. Siemens, Johnson Controls, Honeywell and the other proprietary vendors
of sensory systems must be able to deliver the output of their technology to a
standardized software system that can digest and assimilate the disparate data
into flexible visual presentations that are uniform for first responders. This
E-911 converged information must be conveyed directly to the display device at
the PSAP without impediment and made simultaneously available to mobile displays
within the vehicles of first responders. The emerging H264 standard for
compressed video transmission is a step in the right direction.
Call to Action
The cabling industry historically supported proprietary vendor cable
configurations with a multitude of connectors, pinning arrangements and
composition of cable. Examples include EIA/TIA cables, coax, twinax, TDI, and
unshielded twisted pair cable from one pair to five pair configurations.
Standards and levels that supported increasing transmissions speeds finally
resulted in Category 5 and 6 unshielded twisted pair components. The RJ45
interface for Ethernet was adopted by hardware vendors to support devices
attached to the network. The original advent of Division 17 was established to
create architectural standards for universal cabling systems.
The Automated Building Systems industry must move towards meeting standards for “rich content” delivery of information, with particular emphasis on delivering life safety information to first responders.
If you are interested in participating in the development and support of these standards please email standards@ismslifesafety.com or call 847-276-2627.
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