Mashup of AP location and map information for WiFi based indoor positioning

摘要

An apparatus and method for merging a disjoint pair of maps comprising a digital building map that includes a floor plan and an access point (AP) map that includes identifiers for a plurality of access points is presented. In some embodiments, a first trajectory plot, of a mobile device, relative to the AP map, is received and a plurality of hypotheses is set, where each hypothesis defines a unique translation between the AP map and the building map. A plurality of costs may be computed for the first trajectory, where each cost of the first trajectory corresponds to a distinct hypothesis in the plurality of hypotheses. The hypothesis where the first trajectory has the lowest cost relative to the other hypotheses may be selected.

主权项

1. A processor implemented method for merging disjoint maps, the method comprising:
receiving a digital file comprising a pathway map; receiving a transmitter map comprising identifiers for a plurality of transmitters; receiving a first trajectory plot, of a mobile device, relative to the transmitter map; setting a plurality of hypotheses each defining a unique translation between the transmitter map and the pathway map; computing, in the processor, a plurality of costs, wherein each cost of the plurality of costs comprises a cost of the first trajectory plot through the pathway map based on a respective one of the plurality of hypotheses; and selecting one hypothesis from the plurality of hypotheses, based on a minimum of the plurality of costs.