Paper
29 November 2007 Handheld route guidance system using projected direction indicator for outdoor usage
Kunio Sakamoto, Koji Uchida
Author Affiliations +
Abstract
The authors developed the handy route guidance system using a laser illuminated direction indicator. This system is applicable to the route guidance anywhere. This route guide system consists of a GPS receiver, a digital compass, a laser illumination and a portable computer for system integration. To indicate the direction, the navigation system needs to study a position on the earth. The information about a direction and a location is obtained by the GPS receiver and the digital compass. The laser illumination directly projects the direction indicator on the ground. The IC processor compares which the direction of a sensor is the same where a user should go or not while the user turns one revolution. Then the handy navigator lights a laser illuminator which shows the indicator on the ground if the direction is the same. Thus our navigation unit requests users to do exercise for an interaction to the earth.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kunio Sakamoto and Koji Uchida "Handheld route guidance system using projected direction indicator for outdoor usage", Proc. SPIE 6833, Electronic Imaging and Multimedia Technology V, 68331T (29 November 2007); https://doi.org/10.1117/12.754955
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KEYWORDS
Global Positioning System

Holography

Receivers

Holograms

Diffraction gratings

Wavefronts

Navigation systems

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