WiFi can detect weapons at security checkpoints

WiFi was able to see through the wall, so it was possible to think of using technology to see through objects.In the future, it can help protect security by checking bags, luggage without direct infringement, as well as speed up testing compared to manual methods.

Researchers at Rutgers University recently pointed out that conventional WiFi can be used to check bags and estimate the size of things like weapons, laptops, batteries, and the ability to identify them.Moreover, it can identify liquid volumes such as acids, alcohol and other chemicals used to make explosives.

This technology works by separating wireless interference caused by objects, from shapes to their materials.The device only needs 2 to 3 antennas and can use the existing WiFi network.

The researchers experimented with 15 types of objects and 6 types of bags.Accordingly, their WiFi system describes 99% of dangerous objects, 98% of metallic objects and 95% of liquids.Accuracy drops to about 90% when objects in the bag are closed.

WiFi can help people save more on security checks

Professor Yingying Chen, co-author of the award-winning research report at the IEEE Conference on Communications and Network Security event, said that in a large public area, it is difficult to establish an expensive inspection system. like at the airport, and that they are trying to create a way to reduce the burden on people at security checkpoints.

See more:

1. 120 passwords for free WiFi at airports around the world
2. How can the AI ​​see us behind the walls?
3. What is Beamforming Technology?How does it optimize WiFi networks?