a system, comprising: a memory in which are stored maps of indoor; a receiver module mounted to the reception of tru00e4gheitsnavigationssignalen of a first group of mobile devices.the move by the interior.with the tru00e4gheitsnavigationssignale a movement direction and speed of movement of the mobile equipment; a memory coupled to the processor.and the processor is configured to: a memory card of a discarded automobiles identifiedwhile the card is based on several barriers; on the basis of the received tru00e4gheitsnavigationssignale receiver module mounted in a number of benutzerwegen calculated, with the number of benutzerwege linked pfade identifiedwhat every path between a first position of a number, and a second position on the map so abbiegungen; based on the similarity of a given path with the number von benutzerwegen for each of the identified paths evaluation; at least one path from the identified pathsbased on a predetermined threshold value, selects and undkarteninformationen on the basis of at least one selected path is generatedthe accessible areas of the interior solution.
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