UNSUPERVISED INDOOR LOCALIZATION AND HEADING DIRECTIONS ESTIMATION

摘要

Systems and methods for unsupervised indoor localization are provided. Sensor data obtained from a device carried by a user can be used to simultaneously estimate the indoor location of a user and identify landmarks within the indoor environment based on their signatures. The landmarks can be used to reset the location estimate of the user, and the location estimate of the user can be used to improve the learned location of the landmarks. This recursive process leads to excellent accuracy in indoor localization. Systems and methods for estimating the heading direction of a user are also provided. Sensor data obtained from the user can be used to analyze the forces acting on the user in order to give an accurate heading direction estimate.

主权项

1. A system for unsupervised indoor localization, comprising:
at least one sensor; one or more computer-readable storage media; a list of landmarks of an indoor environment stored on the one or more computer-readable storage media; and an unsupervised indoor location application embodied in program instructions stored on the one or more computer-readable storage media that, when executed by a processing system, direct the processing system to:
determine an estimated current location of a user;collect sensor data from the at least one sensor for a period of time;estimate a location of the user using the sensor data, the period of time, and the list of landmarks; andupdate a location of the user.