In response to the severe challenges posed by global population aging

this paper aims to break through the current limitations of fragmented and single-product technology applications in the field of smart senior care

and build a whole-house smart system solution for senior care buildings that is centered around older adults. This research is grounded in four core design concepts: "Safety Assurance

Health Promotion

Convenient Living

and Emotional Companionship"

adhering to the principle of "Senior-Centered

Technology Invisible". The paper elaborates on the service model leap from passive response to active early warning and intervention achieved through multiple devices such as environmental monitoring

behavior perception

and vital sign collection

combined with a data middle platform and AI algorithm engine. The system's functions cover full-scenario applications including a four-layer emergency assistance guarantee

imperceptible health monitoring

senior-friendly smart controls

and emotional companionship. The primary contribution of this paper lies in proposing a complete theoretical framework and practical blueprint for a whole-house smart ecosystem

providing comprehensive guidance for the intelligent construction of senior care buildings

ranging from design philosophy and system architecture to functional configuration and key principles.