Systems Integration, 2001

In high-technology facilities, building-systems integration is a mixed bag, say engineers, in part because-as always-it depends upon the whims of the client. "The degree of integration of multiple building systems often depends on the owner's organization," says Calvin L. Witt, P.E., of Hayes Seay Mattern & Mattern.

01/01/2001


In high-technology facilities, building-systems integration is a mixed bag, say engineers, in part because-as always-it depends upon the whims of the client. "The degree of integration of multiple building systems often depends on the owner's organization," says Calvin L. Witt, P.E., of Hayes Seay Mattern & Mattern. "For instance, most security-conscious clients have little desire to depend on an outside network or equipment to provide this function. Therefore, security normally has little integration with other building systems."

CUH2A's Steven. R. Rafferzeder, P.E., agrees: "In most cases, security-while integrated-is limited to access control. Larger security projects with CCTV and microwave sensors tend to be on a separate system."

Still, if one department of the owner's organization maintains all building systems, it is likely to depend on communication between HVAC controls and other basic building functions, says Kling Lindquist's Charles A Rowland, P.E. "HVAC systems commonly interface with smoke exhaust and sensing systems, coordinate with daylighting systems or occupancy sensors or communicate with other buildings." Additional control tasks may include operation of vertical transportation and emergency generation equipment.

In addition, if the HVAC direct-digital control systems have UL 864/UUKL listings, they can handle many smoke-control functions by means of inexpensive software, rather than by engineering hardwired connections to the systems, adds Witt.

The question of how and whether to integrate with fire-alarm systems is a point of much concern, however. "Fire-alarm systems also need to be highly reliable and supervised," Witt observes, "but the HVAC system needs to react to fire detection either by shutting down or by going to a smoke-control cycle." Also, fire departments generally prefer having intuitive, easy-to-use control panels to aid in fire-fighting and executing smoke-purge functions.

Other external factors affect the decision to integrate, says Carter & Burgess' David Niemann, P.E.: "Building codes and system reliability issues sometimes work against systems integration, although open protocols and the wider use of fiber-optic transmission systems will allow integration to occur more effectively."





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
System integration: Best practices and technologies to help; Virtualization virtues; Cyber security advice; Motor system efficiency, savings; Product exclusives; Road to Hannover
Collaborative robotics: How to improve safety, return on investment; Industrial Internet of Things, Industrie 4.0: World views; High-performance HMI, Information Integration: OPC and OMG
9 tips: How to integrate a servo system; Process control mathematical models; Serial network grounding; Engineers' Choice Awards; Learn from cyber security mistakes
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
click me