As we tested the robot and drove it around, we used a wireless router, shown above, to connect the driver's station computer to the robot wirelessly. There was a router attached to the driver station, and an antenna receiver on the robot itself which was connected to the CRio, the onboard computer on the robot. The robots use WiFi to communicate, which uses 2.5 gigahertz frequency electromagnetic waves. If you use the equation c=lambda*f, you can calculate the wavelength of the WiFi as 0.12 m. This means the WiFi can fit through pretty small gaps and this explains how you can get WiFi signal from pretty far away. However, over a long distance the protons experience scattering.
Sunday, April 11, 2010
Wireless Router
As we tested the robot and drove it around, we used a wireless router, shown above, to connect the driver's station computer to the robot wirelessly. There was a router attached to the driver station, and an antenna receiver on the robot itself which was connected to the CRio, the onboard computer on the robot. The robots use WiFi to communicate, which uses 2.5 gigahertz frequency electromagnetic waves. If you use the equation c=lambda*f, you can calculate the wavelength of the WiFi as 0.12 m. This means the WiFi can fit through pretty small gaps and this explains how you can get WiFi signal from pretty far away. However, over a long distance the protons experience scattering.
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