In order to reduce the safety risks in outdoor sports,this paper deigned an intelligent outdoor jacket that can monitor the temperature and humidity of human skin in real time using Arduino and MIT App Inventor 2 plat-forms.The suit used DHT11 and iButton temperature and humidity sensors to collect,analyze and compare the temperature and humidity of the underclothing space at the chest and armpit,respectively.The experimental results show that the temperature and humidity data measured by DHT11 are in a high degree of agreement,which can characterize the actual underwear space temperature and humidity.Among the measurement points of intelligent outdoor jacket,the chest is better able to characterize the actual body temperature and humidity data than the arm-pit ,and the temperature of the DHT11 temperature and humidity sensors needs to be compensated for the correction of 0.36℃,and the humidity needs to be compensated for the correction of 5.02％.
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