| 摘要 |
PROBLEM TO BE SOLVED: To simplify the mounting operation of a device by selectively mounting both units of a GPS antenna and a self-contained navigation sensor to the base of an attachment part and rearranging the position detection of the GPS or the self-contained navigation. SOLUTION: An electrical contact for grounding and for antenna signal is provided at the side of a GPS unit 11 and a contact for grounding, sensor signal, and power supply is provided at the side of a self-contained navigation unit 12. Also, the connector of the electrical contact for grounding and for antenna signal of the GPS unit 11 is provided at the side of the self-contained navigation unit 12, and the contact and the connector are electrically connected. As a result, by connecting the units 11 and 12 of the GPS and the navigation and a base 13, both units 11 and 12 of the GPS and navigation can be selectively attached and detached. Initially only the GPS unit may exist and later the navigation unit 12 may be mounted to the base 13 temporarily, thus mounting both units 11 and 12 of the GPS and navigation in one piece at a time when mounting to another vehicle and simplifying a mounting operation. |
