PLC外文翻译---基于PLC的教育教学材料的虚拟实验系统的研究

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1、浙江工业大学教科学院 毕业设计外文资料翻译 设计 题目： 龙门刨床刨台运动模拟器的设计 学生姓名： 学 号： 专 业： 外文出处： Communications in Computer and Information Science, 1, Volume 225, Applied Informatics and Communication, Part 2, Pages 479-486 指导教师： 2012 年 2 月 12 日 The Design and Application of Sewage Treatment Automation System Based on S7-300 PLC

2、 Abstract. For the demand of domestic sewage treatment in county-level city, a plan of Distributed Control System in municipal wastewater treatment automation system is proposed. The main function of which is to supervisory control each sub-system of municipal wastewater treatment via the configurat

3、ion software WinCC, Siemens S7-300 PLC. The feature of the system is mainly as follows, collection of PLC data, protocol conversion, the transmissionof data through fiber, the realization of projects in configuration software, the real-time data storage in database and the release of each kind of re

4、port forms, curves, alarm events in display and so on. The idea of thesystemdesignation and the detailed characterization of the system are also presented in this paper. Keywords: sewage treatment, Distributed Control System, Siemens S7-300 PLC, WinCC Configuration software. 1 Introduction Along wit

5、h the rapid development of economy in China, environmental protection has been a prominent issue. Sewage Treatment is one of the most important parts of environmental protection. As the computer technology and sewage treatment technology developed rapidly, it is necessary to monitor the wastewater t

6、reatment process with advanced control technology and equipment. The sewage treatment project of Inner Mongolian HuhhotTumd Left Banner is the typical project among the county-level city of Hohhot, using Cyclic Activated Sludge System (CASS) to treat wastewater. For this project, we designed a DCS s

7、ystem, whose control system is Siemens S7-300 PLC and monitoring software is Siemens WinCC 6.2. 2 CASS Process CASS biochemical treatment system is a complex system of multi-parameter (such as liquid level, water quality, flow rate, pressure, etc.), multi-tasking (such as water-in,aeration, sediment

8、ation, drainage, etc.), multi-equipment (such as water decanter, blower, regulator etc.). It is the core of the whole biochemical disposal system. The main reaction zone of CASS pool works according to “aeration, idle, sedimentation, and decanter” cycle procedures. Among them, the control of dissolved oxygen in CASS pool, anaerobic segment and aerobic segment is the core.