Development of Diagnostic Expert System of IAQ in Houses

开发“住宅室内空气质量诊断专家系统”的主要任务是：1)对室内污染物浓度标准和所需通风量的知识进行分类；2)建立住宅的多区域通风模型；3)提供住宅的诊断实例；4)改进用户界面。首先制作了一个可以处理3个房间的原型，讨论了需要修改的地方，并从污染物产生率、污染物浓度标准和新风量的角度讨论了目标系统在通风设计中的作用。结合多区通风程序“COMIS WITH IISiBat”，讨论了用户界面需要改进的问题。回顾了主要作者参与制定的HASS-102,1996，日本，ASHRAE 62-1989R，美国，正在发表主要作者总结的标准，以及CEN，EU，总结诊断过程，占用房间模型，多区域通风模型等，构造了知识库、用户界面和推理机作为专家系统，包括二氧化碳产生率的估计和二氧化碳浓度允许限度的估计。该系统最多可处理11个房间的房屋，界面友好。以日本建筑学会采用第三方机械通风系统的标准屋为通用模型，利用COMIS和IISiBat计算了环境条件下的通风量。结合一些居民的行为模式进行了诊断，结果表明，在燃气暖气器等特定的使用场合也会出现室内空气品质问题。

To develop 'Diagnostic Expert System of IAQ in Houses', the task is listed as 1)classification of knowledge of standard of contaminant concentration in rooms and required ventilation rates, 2)making multizone ventilation model of house, 3)providing some diagnostic examples of houses, and 4)improvement of user interface.At first a prototype which can deal with to 3 rooms has made and the points to be modified have been discussed, and the role of the aimed system is discussed from the view of contaminant generation rate, standard of contaminant concentration and supply outdoor air volume in ventilation design. The issues to be improved at user interface is discussed with multizone ventilation code 'COMIS with IISiBat'. Also the standards are reviewed such as ; HASS-102,1996, Japan, in which head author is involved to establish, ASHRAE 62-1989R,America, where a summary by head author is being published, and CEN,EU.Summarizing diagnostics process, occupied room model, multizone ventilation model, and so on, knowledge base, user interface and inference engine are constructed as expert system, including estimation of generation rate of carbon dioxide and allowance limit of carbon dioxide concentration. This system can treat house of 11 rooms at maximum and has user-friendly interface.Using 'Standard House' of Architectural Institute of Japan which aplies third mechanical ventilation system as a generic model, ventilation rate is calculated with COMIS with IISiBat under a environmental conditions. With some habitant behavior patterns, the diganostics are executed and the result shows that IAQ problem can occur at certain usage of gas heater, etc.