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"Dedicated"? Can't the devices that is already nearby, like a router or your smartphone, query it when needed?
by worldsayshi 9y ago
"Dedicated"? Can't the devices that is already nearby, like a router or your smartphone, query it when needed?
- whichfawkes 9y agoThey can't query it, they have to be listening when it broadcasts.
- worldsayshi 9y agoYeah ok I understand that it doesn't have a memory. But you can still sort of "query" the current state of a device that is always broadcasting, like a flow or speed sensor.
- regularfry 9y agoThe router's probably pinging beacon frames out several times a second anyway. There's a lot of 2.4GHz traffic a passive listener could use.
- TeMPOraL 9y agoYou could presumably use existing devices for that, but it would require making a serious software change - in particular, you'd have to alter the radio driver to listen to and recognize backscattered signals (instead of rejecting them as noise).