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The function of a Building Management System, or building automation system (BMS or BAS) is, inter alia, to control, monitor and optimize building services such as the lighting system (e.g. SCADA, DALI), HVAC (heating, ventilation, air conditioning), CCTV security surveillance, access control, the audio-visual system and energy usage. The control technology of a BMS allows interoperability, automation and optimization of all the services and equipment under one system. A number of proprietary systems exist, although common protocols have allowed open systems to become established, such as Echelon's LonWorks, based on the ANSI/CEA 709.1 standard. Interoperable systems are also found in industrial controls, home and utilities and transportation. Building control The LONMARK brand is recognized worldwide as a de-facto standard for control networks in all facets of the building controls industry: access control, elevators, energy management, fire/life/safety, HVAC, lighting, metering, security, just to name a few. In the buildings industry part of the LonTalk® protocol has been included in the American Society of Heating, Air Conditioning and Refrigeration Engineers (ASHRAE) BACnet standard and the American National Standards Institute (ANSI). In Europe, the ANSI/EIA 709 standard has been approved part of the CEN TC247 European standard. Industrial Control LONWORKS® networks are recognized as the market leader in industrial sensors and device bus/networks, according to independent research performed by Automation Research Corporation (ARC) and Venture Development Corporation (VDC). Open systems based on ANSI/EIA 709 replace complex wiring harnesses and eliminate expensive programmable logic controllers (PLCs) and PCs, distributing control throughout a network and reducing system life-cycle costs. They serve as the brains in semiconductor fabrication plants, gas compressor stations, gasoline tank farms, oil and water pumping stations, textile dyeing machinery, pulp and paper processing equipment, automated conveyor systems, and hundreds of other applications. Home & Utility Automation The home automation market is a growing arena for control networks. As a result of industry deregulation, many utilities are giving businesses and homeowners the opportunity to use automation as a method of managing energy more efficiently. From the utility perspective, automation is viewed as value-added services, which help pay for expenditures associated with demand side management, automatic meter reading, and improved energy delivery methods. In addition to energy savings, the home automation market has embraced interoperable control networks for their ability to provide a wide array of control functions. These functions include security, remote monitoring, and white good management. These functions take the automated home from simply a novelty to an efficient, enjoyable, and manageable system. Transportation The Institute of Electrical and Electronics Engineers (IEEE) adopted IEEE-1473-L in 1999 achieving the organization's goal of allowing intracar and intercar communications between products from different manufacturers. Based upon ANSI/EIA 709, IEEE-1473-L is widely mandated and deployed in rail vehicles throughout the United States including trains and sub-systems for public transit, commuter rail, railroads, and passenger rail applications. It's in use today for braking, positive train control, signage, fault monitoring, propulsion control, lighting, HVAC, safety, indicator lights, avionics control, runway lighting, and remote device control. |
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