Abstract: A method of passive sensor tracking with existing infrastructure includes associating unique identifying information of a Wi-Fi access point of a passive sensor with a physical property to be sensed by the passive sensor, where the Wi-Fi access point transmits a spoofed beacon frame, probe response frame, or other management frame as part of Wi-Fi wireless network discovery that includes sensor data. The method further includes receiving sensor data, including the physical property sensed by the passive sensor, in the spoofed beacon frame, probe response frame, or other management frame that the passive sensor transmits, as part of Wi-Fi wireless network discovery, to a wireless device that encounters the passive sensor, where the wireless device reports, either directly or indirectly, the unique identifying information of the Wi-Fi access point encountered and the sensor data in the spoofed beacon frame, probe response frame, or other management frame.

Abstract: A method of passive asset tracking includes associating unique identifying information of a dummy Wi-Fi access point with a moveable asset to be tracked, where the dummy Wi-Fi access point transmits a spoofed beacon frame, probe response frame, or other management frame as part of Wi-Fi wireless network discovery, but is not required to authenticate, associate, or provide upstream network connectivity. The method further includes receiving information relating to a location of the dummy Wi-Fi access point encountered by a wireless device, where the information is received directly or indirectly from the wireless device that reports its location and the unique identifying information of the dummy Wi-Fi access point encountered. The wireless device is not required to authenticate to, or associate with, the dummy Wi-Fi access point encountered. The location of the moveable asset to be tracked may be determined based on the location of the dummy Wi-Fi access point.

Abstract: A method of passive asset tracking includes associating unique identifying information of a Wi-Fi access point with a moveable asset, receiving unique identifying information and information relating to a location of the Wi-Fi access point encountered by one or more wireless devices and storing at least some of the information received, and tracking a location of the associated asset by the location of the Wi-Fi access point.

Abstract: A method of passive asset tracking includes associating unique identifying information of a Wi-Fi access point with a moveable asset, receiving unique identifying information and information relating to a location of the Wi-Fi access point encountered by one or more wireless devices and storing at least some of the information received, and tracking a location of the associated asset by the location of the Wi-Fi access point.