| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle navigation system low in power consumption, compact, requiring shorter image processing time, and capable of precisely acquiring a present position. SOLUTION: This on-vehicle navigation system comprises an on-vehicle navigation base device 16 having a large-capacity storage device 11, a GPS unit 13 receiving ratio waves from a GPS satellite and calculating positional information, and a ratio unit 12, a GPS unit 5 wire-connected or radio-connected with the on-vehicle navigation base device 16, receiving radio waves from an image display unit 1 and the GPS satellite, and calculating positional information, a navigation display device 9 having a radio unit 6, an auxiliary storage device 4, a control unit 2, and a built-in power unit 3, and an on-vehicle power unit 17. |
