室内环境舒适度感知系统研究及实现

Research on the Comfort Evaluation for Indoor Environment

现代人类90%的生命周期在室内度过,因此,室内环境质量不仅影响到室内滞留人员的工作效率,也直接与其身体健康具有很高相关性。本文针对室内热舒适度评价机制不足的问题,依据FAHP(Fuzzy Analytic Hierarchy Process)热舒适度评价模型设计一种基于51单片机和蓝牙无线通信协议的室内环境热舒适度感知系统。系统用单片机、温湿度传感器、光强传感器采集环境参数并采用FAHP算法得到室内环境热舒适度测量值与标准舒适值的权重比,比值为1时表明当前环境为最舒适状态。系统包括软件系统和硬件系统。通过无线蓝牙模块将数据发送到电脑上的虚拟服务器以实现数据在个人网页上显示的功能。实验结果,系统能够将室内环境热舒适度量化,并给出舒适度排序结果。结果可用于室内建筑热环境评估,也可以为建筑节能提供理论依据。

It is reported that people spend 90% of their life indoors. Therefore, the indoor environment has great impact on both the working efficiency as well as health on the occupants. Based on the fuzzy AHP thermal comfort evaluation model, an indoor environment thermal comfort evaluation system based on 51 single chip microcomputer and Bluetooth wireless communication protocol is proposed in this paper to deal with the problem of lack of numeric evaluation in the indoor thermal comfort. The overall design of the system is described, including hardware design and software design. The system collects the environment parameters from the 51-chip through the sensors and uses the fuzzy AHP algorithm to process the data, and then sends the processed data to the virtual server on the computer through the wireless Bluetooth module to realize the function of the data displayed on the personal page. The difference between the comfort indexes measured in the site and the benchmark indicates the comfortable level of the sampling environment, the smaller the better. The most comfortable environment is achieved when the difference reaches 0. Experiment results show that the system can effectively detect the parameters of the indoor environment thermal comfort, and make a quantitative display of the comfort via the fuzzy AHP algorithm. The system has some practicality in the construction of intelligent, air conditioning and other fields.