INDOOR NAVIGATION ANOMALY DETECTION

摘要

Some embodiments include a method of detecting an anomaly when a computing device is navigating utilizing a location service application. The computing device can track its movement in a movement log by computing a device location relative to a site model. The tracked movement can include a sequence of device location samples. The computing device can identify, via a physics simulation engine, the device location as a position anomaly based on the tracked movement and the site model. The computing device can classify the position anomaly as a data anomaly or as a model anomaly. The computing device can compute a corrected device location based on the classification of the position anomaly.

主权项

1. A computer-implemented method comprising:
retrieving a building model from a backend server system characterizing a building in the physical world, wherein the building model has multiple inter-related domains of characterization including a radiofrequency (RF) domain map and a physical domain map; generating a virtual simulation world on a display of an end-user device, the virtual simulation world including a virtual building structure based on the physical domain map; collecting inertial sensor data and wireless communication transceiver data utilizing at least an inertial sensor and a wireless communication transceiver in the end-user device; determining a position of the end-user device based on the inertial sensor data and the wireless communication transceiver data relative to the RF map and the physical domain map of the building model; and detecting an anomaly in the virtual simulation world based on the determined position of the end-user device relative to the physical domain map of the building model, wherein said detecting includes classifying the anomaly as a model anomaly or a data anomaly.