| 摘要 |
A method and system for updating navigation information are disclosed. The method includes the steps of connecting to a navigation information update system, determining if at least one navigation information update is available from the navigation information update system, if the at least one navigation information update is available from the navigation information update system, determining if an intended recipient of the at least one navigation information update is available or unavailable for an update. If the intended recipient of the at least one navigation information update is determined to be unavailable for an update, the method downloads the at least one navigation information update to a navigation information cache onboard the intended recipient or a processing unit not onboard the intended recipient, and if the intended recipient of the at least one navigation information update is determined to be available for the update, the method downloads the at least one navigation information update to the navigation information cache onboard the intended recipient, and installs the at least one navigation information update in a navigation information system onboard the intended recipient.
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