The only radios in the bulb are Wi-Fi and Bluetooth. By "radar technology" they mean doppler shift in Wi-Fi radio reflections. They could be using something like Qualcomm's 60Ghz 802.11ay WiFi radio, but that is probably expensive, https://www.qualcomm.com/news/releases/2018/10/16/qualcomm-d....
> We earned this year’s award for a product targeted to launch in the fourth quarter: our Smart Health Monitoring Light. Featuring a Wi-Fi, Bluetooth Mesh dual chip, the bulb will provide a number of features, including biometric measurement tracking of heart rate, body temperature, and other vital signs, as well as sleep tracking. By connecting multiple bulbs via Bluetooth Mesh and creating a virtual map across your home, this product can even help detect human behavior and determine if someone has fallen and then send for help.
> The journal article implies it is possible, but they didn't demonstrate any applications, just some characteristics of the ESP platform that may enable it
> Wi-Fi based respiration detection technique has attracted much attention due to its device-free and low-deployment-cost. However, most existing studies focus on respiration detection in experimental environments, without considering the impact of people around (it often occurs in our daily life), therefore, if there are several people in the system, their detection will fail. To address this open issue, we propose TinySense, a novel approach that can detect multiple persons' respiration at a time.
The only radios in the bulb are Wi-Fi and Bluetooth. By "radar technology" they mean doppler shift in Wi-Fi radio reflections. They could be using something like Qualcomm's 60Ghz 802.11ay WiFi radio, but that is probably expensive, https://www.qualcomm.com/news/releases/2018/10/16/qualcomm-d....
https://us.sengled.com/blogs/news/the-biggest-ces-2022-smart...
> We earned this year’s award for a product targeted to launch in the fourth quarter: our Smart Health Monitoring Light. Featuring a Wi-Fi, Bluetooth Mesh dual chip, the bulb will provide a number of features, including biometric measurement tracking of heart rate, body temperature, and other vital signs, as well as sleep tracking. By connecting multiple bulbs via Bluetooth Mesh and creating a virtual map across your home, this product can even help detect human behavior and determine if someone has fallen and then send for help.
> The journal article implies it is possible, but they didn't demonstrate any applications, just some characteristics of the ESP platform that may enable it
There's been a decade of research in Wi-Fi (2.4/5Ghz) sensing of human activity, e.g. here are 400+ research papers with steady improvement in detection techniques, https://dhalperi.github.io/linux-80211n-csitool/#external. From that list, a 2017 paper on respiration detection, https://ieeexplore.ieee.org/document/8210837
> Wi-Fi based respiration detection technique has attracted much attention due to its device-free and low-deployment-cost. However, most existing studies focus on respiration detection in experimental environments, without considering the impact of people around (it often occurs in our daily life), therefore, if there are several people in the system, their detection will fail. To address this open issue, we propose TinySense, a novel approach that can detect multiple persons' respiration at a time.