RegularJoe@lemmy.world to Technology@lemmy.worldEnglish · 3 个月前WiFi signals can measure heart rate—no wearables needednews.ucsc.eduexternal-linkmessage-square121fedilinkarrow-up1613arrow-down14
arrow-up1609arrow-down1external-linkWiFi signals can measure heart rate—no wearables needednews.ucsc.eduRegularJoe@lemmy.world to Technology@lemmy.worldEnglish · 3 个月前message-square121fedilink
minus-squaretekato@lemmy.worldlinkfedilinkEnglisharrow-up1·3 个月前You need more power than what regular people use. You would need the signal to go through walls into your home, and then read whatever comes back out through the same walls, so it’s a lot more attenuation than you typically expect.
You need more power than what regular people use. You would need the signal to go through walls into your home, and then read whatever comes back out through the same walls, so it’s a lot more attenuation than you typically expect.