Smart-Nav uses an infra-red(IR) camera to track your head movements. You reflect IR light back to the Smart-Nav, which sends instructions to your computer to move your mouse cursor

WHAT DO I WEAR?

Put a paper thin tiny reflective dot on the part of your body you'd like to control the cursor with. Placing the dot on a hat or mic boom are the current favorites.

WHERE DO I PUT THE SMARTNAV?

The SmartNAV usually sits on top of your monitor, facing you. But you can clip it to laptops or place it behind you. It can be placed anywhere as long as it can see whichever reflective accessory you've chosen to wear.

HOW MUCH DO I MOVE?

Less than an inch of head movement is more than enough to move the cursor across your entire screen. This is also adjustable in our software's "speed" settings. SmartNAV has a 30 degree Field Of View (FOV), and usuall sits about 2 feet away from your head. Thus you have at least a foot and a half of free "head space" in which to move that simple inch.

HOW DO I CLICK?

You can click with (redefinable) hotkeys on your keyboard, or you can plug a switch into the SmartNAV device. We sell simple Click Switches, which can be joined, via our Y-Breakout Cable, to fully simulate a mouse. We also sell a footswitch, which has two buttons built in.

Place The Dot

SmartNAV tracks reflections from a tiny dot, which you can place anywhere.

On Head

On Hand

Hat

Glasses

Mic Boom

We also sell alternatives to the dot sticker, which you can read about in our accessories section

Technical

Technically Infrared light is emitted from the LEDs and is reflected back to the imager by a corner cube reflector (3M safety material). This reflected light is imaged by a CMOS sensor and the video signal is passed to the preprocessing electronics. The video signal is thresholded against a reference level and all passing data is sent to the USB microcontroller to send to the PC for object tracking. In order to increase the signal to noise ratio an IR filter that passes only 800nm and above is placed between the imager lens and the outside world.

The Smart-Nav can image any IR source; typically this is reflective material or an active IR source such as an LED. A user may track many different objects by placing reflective dots or LEDs on the object. The Smart-Nav has a 30 degree field of view and anything being tracked must stay in that field of view.