3 ms·
This is the big constraint: > 2) Range hardcapped at ~1m due to how ultrasound works, you can't centralize detection. Their answer is to give everyone in the h
by svnt 5mo ago
This is the big constraint:
> 2) Range hardcapped at ~1m due to how ultrasound works, you can't centralize detection. Their answer is to give everyone in the household a wearable receiver, which is eeeeeeeh idk, doesn't look consumer-friendly to me.
Sure yes if you could do this with an always-listening smartphone or smartwatch that would be workable, but even then it constrains it to an occupant-activity detector.
Fixing that would require in the best case prompting an app install when visitors arrive. And still it is deaf to any other changes such as a door closing in the wind.
All possible, but feels several technosocial cycles away. Interesting to think about anyway.
- washadjeffmad 5mo agoVariations might be better for underwater or surface impact detection, but for now, congrats to them on the reinvention the 1950s Zenith ultrasonic remote. https://www.guinnessworldrecords.com/world-records/385428-first-ultrasound-remote-control-for-tv-sets https://www.guinnessworldrecords.com/world-records/385428-fi... My grandfather used to love to show off how he could jingle his keys to turn on his TV. Also, without regulating the ultrasonic frequency space, I imagine this would be prone to interference from other devices already employing ultrasoud, today, like Google Home. https://support.google.com/googlenest/answer/9509981?hl=en https://support.google.com/googlenest/answer/9509981?hl=en "Why does Google flush all of my donors' smart toilets whenever I tap my champagne glass before a toast?"