Abstract: A method of passive sensor tracking includes using a Wi-Fi access point that transmits a management frame comprising sensor data of a sensor as part of Wi-Fi wireless network discovery, associating unique identifying information of the Wi-Fi access point with a sensor in a sensor tracking database, receiving observation data of the Wi-Fi access point from a Wi-Fi AP Database, the observation data including the unique identifying information of the Wi-Fi access point and the sensor data of the sensor, and storing the sensor data in the sensor tracking database. The Wi-Fi AP Database receives one or more reports comprising observation data from one or more wireless devices that encounter the Wi-Fi access point.

Abstract: A method of passive asset tracking using observations of one or more pseudo Wi-Fi access points includes associating unique identifying information of a pseudo Wi-Fi access point with a moveable asset in an asset tracking database, receiving observation data from a Wi-Fi AP Database including the unique identifying information of the pseudo Wi-Fi access point and location information of the pseudo Wi-Fi access point, determining a location of the moveable asset based, at least in part, on the observation data of the pseudo Wi-Fi access point, and storing the location of the moveable asset in the asset tracking database. There is no communication between the asset tracking database and one or more wireless devices that report an encounter with the pseudo Wi-Fi access point to the Wi-Fi AP Database.

Abstract: A method of passive asset tracking using observations of Wi-Fi access points includes associating unique identifying information of a Wi-Fi access point with a moveable asset in an asset tracking database, where the Wi-Fi access point is disposed on, attached to, or integrated, receiving observation data from a Wi-Fi AP Database including the unique identifying information of the Wi-Fi access point and location information of the Wi-Fi access point, determining a location of the moveable asset based, at least in part, on the observation data of the Wi-Fi access point, and storing the location of the moveable asset in the asset tracking database. There is no communication between the asset tracking database and one or more wireless devices that report an encounter with the Wi-Fi access point, comprising observation data, to the Wi-Fi AP Database.

Abstract: A method of passive sensor tracking includes using a Wi-Fi access point that transmits a management frame comprising sensor data of a sensor as part of Wi-Fi wireless network discovery, associating unique identifying information of the Wi-Fi access point with a sensor in a sensor tracking database, receiving observation data of the Wi-Fi access point from a Wi-Fi AP Database, the observation data including the unique identifying information of the Wi-Fi access point and the sensor data of the sensor, and storing the sensor data in the sensor tracking database. The Wi-Fi AP Database receives one or more reports comprising observation data from one or more wireless devices that encounter the Wi-Fi access point.