Xandem Technology uses radio waves to monitor movement - CES 2014

The video explains the concept of mesh radio networks, which use low-power radio devices called nodes to form a network that can detect and locate motion within a defined area. This technology is useful in security and elder care applications as it can sense movement through walls and obstructions. The video also discusses how radio waves are affected by human bodies and how this disruption can be analyzed to determine motion. Practical applications include using the technology for SWAT teams to monitor movement in a secured area.

What is the primary function of the nodes in a mesh radio network?

• To broadcast radio stations

• To provide internet access

• To enhance mobile phone signals

• To form a network that detects and locates motion

How do radio waves help in detecting motion?

• They emit a sound when motion is detected

• They change shape and strength when interrupted by a human body

• They bounce off walls to create echoes

• They create a visual map of the area

What happens when a person walks between a transmitter and a receiver?

• The wave's shape and strength change

• The wave frequency increases

• The signal becomes stronger

• The signal is completely blocked

How many links are formed in a 10-node mesh network?

• 10

• 90

• 100

• 45

In what scenario is the mesh radio network particularly useful as described in the video?

• For enhancing Wi-Fi coverage in large buildings

• In a shopping mall for customer tracking

• For a SWAT team to track motion inside a secured area

• In a hospital setting