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基于OPTO22的中央空调系统及OPC接口技术应用研究

【作者】 李实永

【导师】 王钦若;

【作者基本信息】 广东工业大学 , 控制理论与控制工程, 2002, 硕士

【摘要】 本论文以智能楼宇的发展为背景,以本人参与楼宇自动化系统项目的实践为基础,结合学院的实验条件,提出用OPTO 22产品来实现楼宇自动化的方案,由于楼宇自动化系统的面太广,所以文章选用具有典型代表意义的中央空调系统为研究对象,通过对“点”的研究而推广到“面”的应用。 论文首先分析了被控对象的特点和监控的内容,对系统的控制策略进行了研究,提出用模糊控制和PID控制相结合的控制策略,并与传统的PID控制方案进行了比较,做出了仿真比较曲线,仿真结果表明采用模糊控制和PID控制相结合具有较好的控制效果;接着设计了基于OPTO 22的控制系统的硬件实现方案,编制了底层模拟控制软件,实现了真正意义上的完全分布式控制。 为了实现智能建筑系统集成的目标,论文对异构控制网络的互连和OPTO 22控制网络与管理信息网络的无缝连接进行了研究,对当前国际流行的OPC接口技术进行了剖析,编制了采用当前世界先进的OPC技术的客户端程序并与OptoServer成功实现连接,给出了采用OPC技术的OPTO 22控制网络和其它异构网络互连的方法,OPC连接的成功为编制大型高度网络化、高度分散化的管控一体化的分布式大型工控软件提供了一种简单而易于实现的思路,也同样为控制网络和管理信息网络系统的无缝集成提供了一种切实可行的方法。

【Abstract】 This paper puts forward a method of actualizing building automation using products of OPTO 22 with the experiment condition and author’s experience of building automation system (BAS) maintenance. Because the BAS consists of too many things, the paper chooses the central air conditioning system as it’s research object. But it can be popularized to the whole system.The paper first analysises the characteristic and control content of the control system. Then it does some research of control strategy. Point out that using fuzzy control combined PID is a good control strategy. Simulations are presented and analyzed in this paper, and it illustrated that the fuzzy control combined with PID has a better effect compared with the traditional PID control. Hardware scheme is given and bottom control software is written to simulate the system’s control and run. It can carry out really distributed control.To actualizing intelligent building system integration, the paper also does some research about interconnection of heterogeneous control network and OPTO network linking with management information network seamlessly. An advanced interface specification named OPC is introduced and analyzed and a client program is written using VB6. 0. The program can connect to OptoServer using OPC interface. At last the interconnection method of OPTO 22 network and other heterogeneous control network is given using OPC technology. So the paper provide a way of seamless interconnection of heterogeneous control network and good experience of writing big high distributed and networked industry control program.

【关键词】 楼宇自控现场总线前端智能I/OOPC技术
【Key words】 BASfield busfrontal intelligent I/OOPC technology
  • 【分类号】TP29
  • 【被引频次】5
  • 【下载频次】200
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