At first , i give the summarization of the concept , history and background , developed status , characteristic and merit of build automation control system . furthermore , several kinds of important protocol are introduced and the perspective of technology is brought out 文章首先对楼宇自控系统的概念、历史背景、发展现状、特点和优点进行了概述，另外介绍了有影响力的几种现场总线，并对楼宇自控系统的发展进行了展望。
While there are still much question in gas feed system , such as low precision of measurement , bad manangement , simple control method , low gas utilization , and etc . gas feed automation system being introduced in this paper was put forward just under such application background 而目前气举配气系统还存在诸多问题，例如计量精度低、管理落后、控制简单、天然气利用率低等问题。本文所介绍的气举采油配气自控系统正是在这样的应用背景下提出来的。
The purpose of this thesis is to design a reliable and wellappointed automatic control system of daily sewage processing unit on ship . the system can reduce the working intention of marine engineer and raise the efficiency of process by improving the automatic degree of control system and optimizing the processing 本文的主要目的就是设计出一套完善可靠的船舶生活污水处理装置自控系统，通过提高船舶生活污水处理装置的自动化程度，优化船舶生活污水的处理过程，从而达到减轻轮机值班人员工作强度、提高生活污水处理效率以及保护海洋环境的目的。
The rapid progress of the information technology lead the marvelous change in the automatizaion domain . lt also forms the distributed network integration automation system and the interlinkage communicate network of opening system gradually . the former center air - condition control system often adopt the system based on rs485 bus . but as the progress of the technology and the ceaseless requirement , it behind the times 信息技术的飞速发展，导致了自动化领域的深刻变革，并逐渐形成了自动化领域的开放系统互连通信网络和全分布式网络集成化自控系统，而现场总线正是这场深刻改革中的重要技术之一。
The gas feed automation system , which includes field instruments , gas feed controller , wireless remote supervising system , and so on , will realize following functions : gas flow measurement , gas pressure and temperature measurement , gas flow control , gas pressure regulation , intermittent gas lift , wireless remote monitoring , and etc . this paper will discuss the following content in detail : first part is introduction 该自控系统包括现场变送仪表、气举配气控制器和无线远程监控等，主要完成天然气流量计量、气体压力温度检测、天然气流量控制、管道干压调节、间歇气举以及远程监控等功能。本文将会重点介绍以下内容：首先是概述部分，简要介绍了气举采油技术和气举配气系统的地位和现存问题，并介绍了配气自控系统的主要性能和优点。
In hardware electricity of the auto - control system detailed introduced composing of the water road and work principle , row put the smoke and dust ' s temperature examination and control , defend to wear away quickly the thermocouple ' s adoption , and the exterior connect the connector . and give outed the diagram of internal hardware electricity principle 在该自控系统的硬件电气中详细介绍了水路的构成及工作原理，排放烟尘的温度检测及控制，防磨损快速响应的热电偶的采用，远程上位机控制及外部接线端子。并给出了内部硬件电气原理图。
