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U. Glaeser

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FIGURE 38.9<br />

FIGURE 38.10<br />

a map database is stored and accessed when a map is displayed, an optimum route is searched, and route<br />

guidance is performed. The software in the ROM in Fig. 38.12 provides the four functions—vehicle<br />

location, route search, route guidance, and display. For example, vehicle location is determined with<br />

processing signals from GPS, a vehicle speed sensor, and a gyro sensor. After vehicle location is fixed, a<br />

map database in the CD-ROM is accessed. Then, both the present vehicle location and a map near to the<br />

© 2002 by CRC Press LLC<br />

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Examples of information display.<br />

Present Location<br />

Example of a map display (1).<br />

Calculated<br />

Route<br />

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Simplified Map

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