Cho, Seonghun Nam, Hong Jae Shi, Chuanqi Kim, Choong Yeon Byun, Sang-Hyuk Agno, Karen-Christian Lee, Byung Chul Xiao, Jianliang Sim, Joo Yong Jeong, Jae-Woong 2024-01-12T02:31:50Z 2024-01-12T02:31:50Z 2022-12-19 2023-03 0956-5663 https://pubs.kist.re.kr/handle/201004/75785 The conventional heating, ventilation, and air conditioning (HVAC) systems are based on a set-point control approach that only considers the temperature of the environment without reflecting the thermophysiological status of the occupant. This approach not only fails to fully satisfy individual thermal preferences, but it also makes an HVAC operation energy-inefficient. One possible solution is to control the indoor thermal condition based on an accurate prediction of the occupant's thermal comfort to prevent any unnecessary energy consumption. Here, we present an artificial intelligence (AI) wearable sensor-based human-in-the-loop HVAC control system that is operated on a real-time basis reflecting the thermophysiological condition of the occupant to automatically improve their thermal comfort while reducing the energy consumption of the building. The wristband-type, AI-based, three-point wearable temperature sensor offers excellent thermal comfort prediction accuracy (93.9%), enabling a human-centric HVAC control operation. A proof-of-concept demonstration of closed human-in-the-loop HVAC control using the AI-enabled wearable sensor system confirms both the accuracy of the thermal comfort prediction and the energy-efficiency of this approach, demonstrating its potential as a new solution that improves the occupant's thermal comfort and provides building energy savings. English Pergamon Press Ltd. Wireless, AI-enabled wearable thermal comfort sensor for energy-efficient, human-in-the-loop control of indoor temperature Article 10.1016/j.bios.2022.115018 1 Biosensors and Bioelectronics, v.223 Biosensors and Bioelectronics 223 N scie scopus 000911011400001 Biophysics Biotechnology & Applied Microbiology Chemistry, Analytical Electrochemistry Nanoscience & Nanotechnology Biophysics Biotechnology & Applied Microbiology Chemistry Electrochemistry Science & Technology - Other Topics Article SKIN TEMPERATURE PREDICTION BUILDINGS ELECTRONICS Thermal comfort Human-in-the-loop Wearable sensor Temperature sensor Artificial intelligence Energy saving