| 摘要 |
PURPOSE: A navigation device interlocking to vehicle speed is provided to improve the transmittance of the information by transmitting the voice for guiding the position information to the driver with maintaining a predetermined level as the driving speed increases. CONSTITUTION: A navigation device interlocking to vehicle speed includes a navigation device(200), a driving speed detection sensor(100) and a micro-computer(300). The navigation device is provided with a voice guide function to output the path information as a voice through the speaker installed the inside of the vehicle. The driving speed detection sensor detects the driving speed of the vehicle. And, the micro-computer controls the speaker volume level outputting the guide voice of the navigation device in response to the speed value sensed at the speed detection sensor.
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