Navigation system i.e. mobile handset, for motor vehicle, has route computation unit accessing data of data storage, where additional data e.g. temporary building site, are input into data storage by user

摘要

The system (1) has a route computation unit (3) accessing data of a data storage (4) e.g. compact disk or universal serial busstick, where additional data e.g. temporary building site or change of traffic management, are input into the data storage by a user. The data are input at an external computer in the data storage, where the data storage is movably and exchangeably designed. The data are wirelessly forwarded to a service provider via Internet and to a central place, where the data between homogeneously equipped motor vehicles are exchangeable.