Saturday, January 29, 2011

The Tracker 2000-Head Pointing Device

The Tracker 2000 is an assistive device for students with communication disabilities. This device is similar to a web-cam. It is mounted on the top of a computer monitor. An infrared light shines out of it and looks for a 1/4 inch reflective dot located on the user by use of glasses or a hat. When the user moves his/her head, the mouse on the computer screen will move. Unfortunately, this is all the infrared light and reflective light does. In order to click the mouse, the user must push input switches on the camera to make a selection on the computer. Even though the Tracker 2000 is slower than other head pointing devices, it seems to be the most comfortable to wear as a user. Because it is slower, the user tends to move their head towards the computer screen thinking it will help in moving the mouse. When this is done, the reflective dot on the user enlarges and the computer detects that and makes the mouse harder to control. Users will have to be reminded that this head pointing device is not as quick as they may desire and will have to be patient to get the desired results.



Head Pointing Device Demonstration