重心法去模糊的环境舒适性指标评价

The Gravity Method Defuzzy in Environmental Comfort Index Evaluating

环境舒适性向来都是比较模糊的概念,对于人体来说只是感官上的瞬间感觉,难以用精确的数学描述,而且主观性较强.考虑到常规的去模糊评价方法容易忽略较小权重因素的影响,导致信息"丢失"的情况,从环境舒适性角度出发,提出重心法去模糊的综合评价方法.方法引用力学中重心的概念,刻画各个环境因素隶属度的集中程度,解决了去模糊过程中出现结果模糊的问题.分析实施例表明,重心法去模糊综合评价方法的分析结果与调查的实际情况较为吻合,吻合度约为91.4%,说明评价方法更具合理性和有效性,为后续的环境舒适性控制器提供准确的输入参量.

Environmental comfort is always a vague concept, and it is only an instant feeling for the human body on sense organ, so it＇s very difficult to precise describe mathematical with strong subjectivity. Considering the conventional fuzzy evaluation method will overlook the smaller weighting factors easily and lead to information ＂lost＂, the comprehensive evaluation method of the gravity method defuzzy from the perspective of environmental comfort is put forward in the paper. This method reference the concept of gravity in mechanics, which depicts the concentration degree of various environmental factors membership degree, to solve the results of fuzzy problems in the process of deblurring. After analyzing the implementation case, it＇s shown that, the analysis result of comprehensive evaluation method of the gravity method and the actual situation investigated is anastomotic with about 88.6% anastomotic degree, which is indicated that this evaluation method is more reasonable and effective and provides accurate input parameters for subsequent environmental comfort controller.