Interestingly, ordinary WiFi can easily identify weapons, bombs and explosive chemical in bags just anywehre, be it a crowded stadium, or museums, theme parks, schools and other public spaces, a new study reveals.
The researchers said suspicious detection object is easy to set up, reduce security screening costs and avoids invading privacy such as when screener open and inspect bags, bagpacks, and luggage. Traditional screening generally requires high staffing levels and costlier specialized equipment.
This could have a great impact in protecting the public from dangerous objects. There’s a growing need for that now.
The reveals that Wifi, or wireless, signals in most public places can penetrate bags to get the dimensions of dangerous metal objects and detect them, including weapons, aluminum cans, laptops and batteries for bombs. WiFi can also be used to estimate the volume of liquid such as water, acid, alcohol and other chemicals for explosives.
Thes low-cost system requires a WiFi device with two to three antennas and can be integrated into existing WiFi networks. The systems analyses what happens when wireless signals penetrate and bounce off objects and materials.