【作者】 曲梦可；

【导师】 李昕；

【作者基本信息】 燕山大学 ， 生物医学工程， 2006， 硕士

【摘要】 本文在对需求充分调研的基础上设计了一套基于模糊变量表达的室内舒适度测控系统。首先,从理论上分析了符号化测量理论及模糊控制理论。从符号信息表述的角度阐述测量概念和模糊符号化测量的定义。在一定的测量结构下,运用模糊数学的理论和方法,通过专门的技术工具,经过实验和模糊推理,给出被测量的模糊符号化表征的信息的过程。然后介绍了模糊控制系统的概念、基本控制思想,简述了模糊控制器的设计方法,给出了模糊控制系统的一般模型。其次,提出了一种模糊传感器数据融合的方法,将传感器的测量数据作为输入变量,融合结果作为输出变量,分别对输入变量和输出变量进行模糊化,通过运算合并所有输入的兼容度,得到总兼容度。最后利用解模糊的方法,确定兼容度最大处的位置即为融合结果。并从应用的角度介绍了基于温湿度的模糊传感器舒适度的合成方法。该方法在充分考虑了各个传感器的重要度和它们输出结果的相似性等因素的基础上实现了模糊传感器的一致性融合。最后,采用模糊控制技术对温湿度进行控制。设计了一种基于MSP430F449单片机的温湿度模糊控制器,实现了对温湿度的实时监测和自动控制,并采用北京华控公司的HYCAN总线设计了一套室内舒适度测控系统,其中应用VB语言设计了控制界面。更多还原

【Abstract】 This paper designs a measure and control system of indoor environmental comfort based on fuzzy variable representation based on the requirement of sufficient investigation.First, this paper analyzes the symbolized measurement theory and the fuzzy control theory from the theory. It also explains the concepts of measurement and fuzzy symbolized measurement from a perspective of symbolized information representation. It is a process of which presents the information of fuzzy symbolized representation measured, under defined structure of measurement, using fuzzy mathematical theory and method, through special technical instrument. Then it introduces the concept of fuzzy control system and basic control ideas, and demonstrates the design approaches of fuzzy controller, and gives the general model of fuzzy control system. This paper introduces a method of evaluating indoor environmental comfort level, which is based on fuzzy variable representation.Second, this paper provides a data syncretic method of fuzzy transducer, make the data measured from transducer as input variable, and syncretic results as output variable, and make input variables and output variables fuzzy separately. And then compute and merge all of the input concurrent degrees in order to gain the whole concurrent degree. Finally, make use of the method of doing fuzzy to confirm the place of maximum concurrent degree to be the syncretic result. And it also introduces the synthesized method of fuzzy transducer comfort level, based on temperature and humidity. This method realized the consistency syncretism of fuzzy transducer, based on wholly considering the factors, such as each transducer’s importance and similarity of their outputs, and so on.In the end, this paper use fuzzy control technique to control temperatureand humidity. And design a fuzzy controller of temperature and humidity, based on MSP430F449 single-chip computer to supervise temperature and humidity at all times and control automatically. Simultaneously, this paper also designs a set of measurement and control system of comfort level, adopting HYCAN Bus of HuaKong company in Beijing. And use VB language to compile control interface.更多还原