| With the rapid development of technology and the continuous improvement of people life standards,people are increasingly demanding the thermal comfort of the indoor environment.At present,the study of indoor thermal comfort is mainly limited to HVAC,air conditioning and other engineering equipment itself,and the human body is not fully considered physiological,psychological and other factors,air conditioning temperature is not automatically adjusted with the body surface temperature,Caused the following defects:(1)It is easy to produce "air conditioning disease";(2)causes energy waste.Therefore,it is necessary to improve the existing air conditioning system so as to improve the comfortable of the indoor environment and achieve the purpose of personalized and precise control of the thermal comfort of the air conditioner.In view of the existing defects of the air conditioning system,this article combines the body surface temperature and the indoor environment parameters,using wearable devices and existing air conditioning equipment,research and development of an air conditioning indoor temperature and humidity adaptive control system.According to the Predicted Mean Vote(PMV)index,human.body surface temperature,and indoor environmental parameters,a fuzzy control model of air conditioning temperature was established.The experiment proved the validity of the model;and a "wearable device(smart bracelet)+ smart was designed.The closed-loop control system for the indoor temperature of the control terminal +traditional air-conditioner adopts two 32-bit AD14580 and CC2640 ARM Cortex M-series Bluetooth chips with Bluetooth and infrared communication functions as the main control of the smart bracelet and intelligent control terminal respectively.In order to realize the communication of the indoor temperature regulation system.The smart bracelet collects the human body-surface temperature in real time.The intelligent control terminal collects the ambient temperature and humidity-parameters and completes the fuzzy control of the temperature and humidity,and realizes the communication with the smart bracelet and the traditional air conditioner.The experimental results show that the air conditioning room temperature control system based on wearable device is designed by the dissertation and can automatically adjust the air conditioning temperature according to the human body surface temperature and the indoor environment temperature.The error is ±1℃,achieving the design goal and satisfying.Comfort adaptive adjustment requirements. |
