The aging population, prevalence of chronic diseases, and depression are some of the major challenges of current healthcare. The smart home monitoring provides a solution of human-centric out-of-hospital care and calls for more attention to improve the comfort of patients. Among home technologies, electric lighting system is ubiquitous and affecting many aspects of human physiology, including not only visual system but also non-image-forming system. The exposure to light can influence various states of human and lead to effective comforting.

This paper presents a human-centric smart lighting system controlled by human state using ubiquitous physiological sensor networks. The proposed system, acting as an intelligent home monitoring component, can naturalistically detect human’s state such as intensiveness, sleepiness, and depression. Vital signals including ECG and its secondary parameters can be acquired by non-intrusive physiological sensors and wirelessly transmitted to a control system. The color of LED can be controlled by the detected human state and adjusted to emotional comfort. The results show that different colors of light can influence human’s state.

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