Patent ID: 9143892
Filing Date: 2015-09-22
Classification: G01S,H04W,Y02D

Abstract:
1. A method implemented in a service, the method comprising: receiving, from multiple devices, observation data identifying signals detected by the multiple devices at particular positions, the observation data having been filtered to remove duplicate data; determining whether the observation data conforms to one or more patterns identified based on one or more criteria used by a particular device of the multiple devices in providing the observation data to the service; maintaining, in response to determining that the observation data conforms to the one or more patterns, the observation data; maintaining, in response to determining that the observation data does not conform to the one or more patterns, a record that the particular device is an untrusted device; dropping, in response to determining that the observation data does not conform to the one or more patterns, the observation data; determining that the observation data includes data identifying signals detected from a non-stationary wireless beacon; and indicating to the multiple devices to drop observation data from the non-stationary wireless beacon in response to determining that the observation data includes data identifying signals detected from a non-stationary wireless beacon.