3 ms·
Fascinating > 'Our approach can estimate the number of people walking in an area, based on only the received power measurements of a WiFi link,' said Mostofi,
by zhte415 11y ago
Fascinating
> 'Our approach can estimate the number of people walking in an area, based on only the received power measurements of a WiFi link,' said Mostofi, a professor of electrical and computer engineering. This approach does not require people to carry WiFi-enabled telecommunications devices for them to be counted, Mostofi emphasized.
So completely passive (as long as WiFi is on and seeking a connection).
- chrismcb 11y agoI'm not sure what you mean by passive, but one wifi card needs to send a signal to the other. Seems more active than passive.
- zhte415 11y agoCorrect. A passive action by the user, who often just leaves WiFi on seeking mode when on the move from convenience (walking between home, work, Starbucks, Subway, friend's house, etc). Passive of the user not taking action, I don't mean passive of the device.