Smart health monitoring device for public health in elderly communities

Abstract

The present invention discloses a smart health monitoring device for use in elderly communities, aimed at enhancing public health safety while preserving privacy. The device comprises a protective shell housing a lifting mechanism, a horizontal plate, a millimeter wave radar, a smart camera, environmental sensors, and a servo-controlled lowering assembly. The millimeter wave radar enables non-contact detection of abnormal events such as falls, inactivity, or excessive motion without using continuous video surveillance. Environmental parameters including PM2.5, CO₂, VOCs, temperature, and humidity are monitored via integrated gas sensors. Upon detection of abnormal activity, the smart camera is selectively deployed via a motorized threaded rod and sleeve system to visually verify the event while minimizing privacy invasion. The system reduces reliance on constant surveillance, enhances public area monitoring, and supports health-based alerts in communal living spaces. The invention is particularly suitable for eldercare facilities, assisted living environments, and other privacy-sensitive health-monitoring contexts.