Navigation Aid System
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Abstract
The invention concerns a navigation aid system comprising beacons implanted proximate single points Pi of a road network and at least one portable device, each of the beacons Bi including a transmitter associated with a storage unit containing at least one single identifier of said beacon IBi. Each of the portable receiver devices comprises an application for recording a destination D and for calculating an information message from the received identifier IBi, of the previously received identifier IBi-1, of the recorded destination D and a database recorded in a local storage unit. The database comprises only N different information parameters Ii,n for the Ni road junctions associated with the single point Pi, the application selecting the parameter Ii,d based on the recorded destination D. The information message is generated based on the identifier IBi-1 and the information parameter Ii,d.
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Citations
19 Claims
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1-10. -10. (canceled)
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11. Orientation aid system comprising:
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a plurality of beacons, each beacon placed in proximity of one of said plurality of single points of a transit system and each beacon comprising a transmitter and an associated memory containing at least one unique beacon identifier of said each beacon; and at least one portable receiver device comprising an application module to record a destination D and to compute an information message from a beacon identifier IBi received, a previously received beacon identifier IBi-1, the destination D and a local database stored in a local memory of said at least one portable receiver device; and wherein said local database comprises N different information parameters Ii,n for the Ni route junctions associated with a single point Pi, said application module operable to select a parameter Ii,d as a function of the destination D and said information message. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification