Building Automation
A BUILDING AUTOMATION SYSTEM FOR A 3-STOREY BUILDING
ABSTRACT
This paper discusses the structure and features of the modern day Building automation system (BAS). Building automation describes the functionality provided by the control system of a building. The control system is a computerized, intelligent network of electronic device designed to perform the maintenance of the mechanical systems in a building. The field technology used in this is a distributed control system with Lonworks technology. This paper gives a detail review on a building automation system for a 3-storey building with 120 light fittings,
26 air handling units, 2 central heating and cooling systems. The design of Lon maker and intelligent node which uses Lonworks technology are also discussed in this paper. INTRODUCTION
Building automation system is most widely used technology which is mainly used in commercial areas like shopping malls, hotels etc. The core functionality of the BAS is to maintain the building climate in a specified range, monitors system performance and device failures, provides lighting based on occupancy schedule. The BAS functionality reduces building energy and maintenance costs when compared to a non-controlled building. A building controlled by a BAS is often referred to as an intelligent building system. These days, with the high cost of energy, labour, and contract services, it is even more important to put an emphasis on implementing a system that not only automates building equipment and functions, but also improves on the efficiency and effectiveness of a facilities department. It is therefore critical that when implementing a building automation solution it is not done in a commodity fashion. A comprehensive design is
required to maximize the benefits of a building automation system. Otherwise, all you may get in return is a high tech time clock, and that is not good for the bottom line. The primary and secondary bus can be
ABSTRACT
This paper discusses the structure and features of the modern day Building automation system (BAS). Building automation describes the functionality provided by the control system of a building. The control system is a computerized, intelligent network of electronic device designed to perform the maintenance of the mechanical systems in a building. The field technology used in this is a distributed control system with Lonworks technology. This paper gives a detail review on a building automation system for a 3-storey building with 120 light fittings,
26 air handling units, 2 central heating and cooling systems. The design of Lon maker and intelligent node which uses Lonworks technology are also discussed in this paper. INTRODUCTION
Building automation system is most widely used technology which is mainly used in commercial areas like shopping malls, hotels etc. The core functionality of the BAS is to maintain the building climate in a specified range, monitors system performance and device failures, provides lighting based on occupancy schedule. The BAS functionality reduces building energy and maintenance costs when compared to a non-controlled building. A building controlled by a BAS is often referred to as an intelligent building system. These days, with the high cost of energy, labour, and contract services, it is even more important to put an emphasis on implementing a system that not only automates building equipment and functions, but also improves on the efficiency and effectiveness of a facilities department. It is therefore critical that when implementing a building automation solution it is not done in a commodity fashion. A comprehensive design is
required to maximize the benefits of a building automation system. Otherwise, all you may get in return is a high tech time clock, and that is not good for the bottom line. The primary and secondary bus can be
References: • DS, Danish Standard, DS 21906. P-Net, Multi-master, multi-net fieldbus for sensor, actuator and controller communications. • Website: www.echelon.com • Automation in Construction, Volume 12, Issue 5, September 2003, Pages 617-629 W. L. Tse, W. L. Chan and S. S. Lai. • Material provided in DSO