Wivi is the new technology which can see through walls using Wi-Fi. By using the inexpensive wireless system(Wi-Fi) can Wi-Vi track moving objects through walls. Wivi device uses the same wireless antenna as Wifi. It can be found in a cell phone or laptop. Theory one day Wivi could be embedded in a phone one day.
How Wivi works with WiFi
Sending ordinary Wi-Fi radio waves through a wall or another barrier and measuring the way they bounce back enable the device recognize moving objects behind a wall. It’s very similar principe as radar or sonar.