HVAC System for Maintaining Pleasant Sleep During Warm Nights in Japan
HVAC System for Maintaining Pleasant Sleep During Warm Nights in Japan
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DOI：
10.1109/aina.2016.18
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发表时间：
2016-03
期刊：
影响因子：
--
通讯作者：
Kanae Matsui
中科院分区：
文献类型：
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作者：
Kanae Matsui
全球变暖使人们不再适应气温的快速变化。此外，最近温暖夜晚的发生率有所增加。在日本，温暖的夜晚经常出现在8月中旬，会导致睡眠不足和身体状况不佳。日本正在讨论这个问题，因为这样的夜晚让人们很难睡好觉，因此他们会生病。特别是，心脏病患者很容易生病，这可能会导致严重的医疗状况。供暖、通风和空调(HAVC)控制系统使人们能够在夏夜获得舒适的睡眠，有效地解决了这一问题。本文介绍了一种新的暖通空调控制系统，该系统旨在通过使用空调来为确保舒适的睡眠提供更好的环境条件。该系统收集环境数据并计算预测平均投票率(PMV)，PMV表示房间内的舒适度，然后控制空气以保持正常温度。PMV是一个用来表达人们舒适度的值，是根据环境和物理数据计算的。为了采集PMV值，每隔1分钟，所提出的HAVC控制系统具有数据采集功能，然后系统产生信号来控制空调。当PMV值超过或低于舒适区时，空调就会打开，这有助于为更好的睡眠创造更好的环境。为了验证所提出的HAVC控制系统的有效性，将该系统安装在一所两人居住的房子的卧室中，并利用该系统进行了为期10天的实验。此外，为了评估所提出的系统，使用了可穿戴设备收集的睡眠状况数据。将未使用该系统的5天的数据与使用该系统的5天的数据进行比较，发现睡眠状况改善了13.6%。此外，对一份基于网络的问卷的回答显示，在使用该系统的晚上，参与者的舒适度比平时更高。
Global warming has deconditioned people to rapid changes in temperature. Further, recently the incidence of warm nights has increased. In Japan, warm nights are often observed in the middle of August in Japan and cause loss of sleep and deconditioning. This problem is being discussed in Japan because such nights make it difficult for people to sleep well and consequently, they fall sick. In particular, people with heart disease fall sick easily and this could lead to serious medical conditions. A heating, ventilation, and air conditioning (HAVC) control system, which enables people to have pleasant sleep during summer nights, effectively addresses this problem. In this paper, a new HVAC control system, which focuses on providing better environmental conditions for ensuring pleasant sleep by the use of air conditioning, is presented. The system collects environmental data and calculates Predicted Mean Vote (PMV), which indicates comfort in a room, and then controls the air to maintain a normal temperature. PMV is a value used for expressing the people's comfort and is calculated using environmental and physical data. To collect the PMV value, at intervals of 1min, the proposed HAVC control system has a data collection function, the system then generates a signal to control the air conditioning. When the PMV value is over or under the comfort region, the air conditioning is turned out and this helps create a better environment for the better sleep. To confirm the effectiveness of the proposed HAVC control system, the system was installed in a bedroom of a house where two people lived and an experiment was conducted for 10-days by using this system. Further, to evaluate the proposed system, sleeping condition data collected by wearable devices were utilized. A comparison of the data of 5 days when the proposed system was not used and those of 5 days when the proposed system was used revealed a 13.6% improvement in the sleeping conditions. Moreover, answers to a web-based questionnaire revealed that the participants' comfort level was higher than usual on nights when the proposed system was used.