基于局部皮肤温度的床上微环境控制策略  

Control Strategy of Bed Microenvironment Based on Local Skin Temperature

作　　者：宋鸽 艾正涛[1,2] 张国强 SONG Ge;AI Zhengtao;ZHANG Guoqiang(College of Civil Engineering,Hunan University,Changsha 410082,China;National Center for International Research Collaboration in Building Safety and Environment(Hunan University),Changsha 410082,China)

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]国家建筑安全与环境国际联合研究中心(湖南大学),湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2024年第5期207-216,共10页Journal of Hunan University:Natural Sciences

基　　金：国家留学基金创新型人才国际合作培养资助项目(20190613216)。

摘　　要：通风床垫被设计成通过位于脚部附近的通风口抽走床上微环境的污染空气以达到源头控制污染物的目的.实验研究发现通风床垫的使用有造成局部冷不适的风险,同时使用通风床垫和局部加热装置,并根据受试者反馈实时调控,可以解决冷不适问题,并满足不同用户的热微环境需求.为了探究通风床垫耦合局部加热装置基于局部皮肤温度的自动控制潜力,对比了30名受试者在室温下清醒地躺在通风床垫上时前额、右肩胛骨、左上胸、右上臂、左下臂、左手、右大腿前侧、左小腿后侧、右脚背、左脚背10个部位的皮肤温度和总体、面部、额头、颈部、胸部、背部、手臂、手、大腿、小腿、脚的热可接受度.结果显示:女性的局部皮肤温度与男性相比普遍较低,而可接受度较高.高斯回归模型可以计算出每个部位最佳皮肤温度区间,结合各部位的可接受度关联矩阵结果及通风床垫及局部加热的控制潜力,最终选取脚部、手部和背部的皮肤温度以实现床上微环境的个性化自动控制.本研究提供了通风床垫基于局部皮肤温度的自动控制潜力研究的新思路和建议,可以为床上微环境的优化和改善提供一定参考.Ventilated mattresses are designed to remove polluted air from the bedroom microenvironment by using a ventilation port located near the feet,thereby achieving pollution control at the source.However,experimental research has found a risk of local discomfort due to cold drafts caused by its use.Therefore,this study explores the automatic control potential of the ventilated mattress coupled with a local heating device based on local skin temperature,which can meet different thermal microenvironment needs of users by adjusting the mattress and local heating device in real-time according to users’feedback.A comparison was made between the skin temperature and thermal acceptability of ten body parts of 30 awake subjects lying on the ventilated mattress,including the forehead,right scapula,upper left chest,upper right arm,lower left arm,left hand,front right thigh,lower left leg,right instep,and left instep.The acceptability of the whole body,face,forehead,neck,chest,back,arm,hand,thigh,leg,and foot were also recorded.The results showed that local female skin temperature was generally lower than male,while their acceptability was higher.The Gaussian regression model can calculate optimal skin temperature range for each part.Combined with the thermal acceptability correlation matrix results of each part and the control potential of the ventilated mattress and local heating device,the skin temperatures of the foot,hand,and back were finally selected to realize personalized automatic control of the bedroom microenvironment.This study provides new ideas and suggestions for exploring the automatic control potential of the ventilated mattress based on local skin temperature and could provide a reference for the optimization and improvement of the bed microenvironment.

关 键 词：床上微环境 通风床垫 皮肤温度 可接受度 高斯回归 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]