在对楼宇自控系统的构成及功能实现原理进行论述的基础上,从中央控制室、系统电源、电气保护接地三个方面探讨了自控系统的设计与建设。同时,结合建筑的节能需求,分析了利用自控系统实现建筑节能的途径。 Based on the discussion of the composition and function of building automation system, this paper discusses the design and construction of automatic control system from the three aspects of central control room, system power supply and electrical protection grounding. At the same time, combined with the energy-saving requirements of the building, this paper analyzes the ways to realize the building energy-saving by using the automatic control system.