| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication apparatus for vehicle which is capable of attaining an improvement of communication quality. SOLUTION: A communication apparatus for vehicle 1 is loaded on a present vehicle for communicating with a destination by radio and comprises (n) radio communication terminals 10<SB>1</SB>-10<SB>n</SB>, a frequency calculation unit 23, a communication system selection unit 24 and a communication system change unit 25. The (n) radio communication terminals 10<SB>1</SB>-10<SB>n</SB>are capable of performing radio communication with the communication destination using different frequency bands, and the frequency calculation unit 23 calculates a communication frequency for communicating with the destination by radio on the basis of correlation data of frequency and throughput. Furthermore, the communication system selection unit 24 selects any one of the N radio communication terminals 10<SB>1</SB>-10<SB>n</SB>to be used for radio communication on the basis of the communication frequency calculated by the frequency calculation unit 23. The communication system change unit 25 turns the radio communication terminal which is selected by the communication system selection unit 24, into radio communication enabled state and turns the non-selected radio communication terminals into radio communication disabled state. COPYRIGHT: (C)2005,JPO&NCIPI
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