Methods and systems for tracking asset locations within a facility are disclosed. In one embodiment, a system is provided that includes nodes and a gateway. The nodes may receive beacon transmissions containing beacon identifiers from beacons associated with assets. The nodes may transmit a node transmission including a beacon identifier, a node identifier of the node, and a signal strength of received beacon transmissions. The gateway may receive node transmissions and identify node transmissions that share a common beacon identifier. The gateway may then determine a location of the beacon associated with the common beacon identifier by identifying floors associated with nodes that received a beacon transmission from the beacon. The gateway may also select a beacon floor with the most nodes that received a beacon transmission from the beacon and may select a closest node from among the nodes on the beacon floor with the highest signal strength.

A device includes a controller configured to determine a first periodic priority function based on a first emitter signal periodicity of a first emitter type. The controller is also configured to determine a second periodic priority function based on a second emitter signal periodicity of a second emitter type. The controller is further configured to generate a scan schedule of a receiver system based on at least the first periodic priority function and the second periodic priority function.

Provided is a face-to-face situation determination system in which a first beacon, which is a beacon carried by a first user, transmits a first signal including information identifying the first beacon. A second beacon, which is a beacon carried by a second user, upon receiving the first signal from the first beacon, transmits, toward a control device, a second signal including information identifying the first beacon, a first signal reception intensity, and information identifying the second beacon. The control device receives the second signal and, on the basis of the first signal reception strength included in the second signal, determines that the first user and the second user are facing each other if the first signal reception strength is greater than or equal to a first threshold value for a predetermined period or longer, and determines that the first user and the second user are facing one direction.

A system and method for determining the presence of an individual at a particular spot within a location preferably based on the strength of signals received from beacons assigned to the particular spot by a software application (App) running on an electronic device of the individual. In one embodiment, certain presence calculations are performed by the App. In another embodiment, the App forwards information regarding the received beacon signals to an electronic identification and location tracking system and the presence calculations are performed by the system.

Provided is a system (10) for remote activation of an emergency radio beacon by a Search and Rescue (SAR) party, the system (10) comprising a controller (12) operatively arranged in signal communication with an emergency radio beacon (14), a positioning module (16) arranged in signal communication with the controller (12) and configured to operatively provide spatial positioning data to the controller (12), and a receiver (18) arranged in signal communication with the controller (12) and configured to operatively receive an activation signal (20). The controller (12) is configured to activate the beacon (14) upon receipt of the activation signal (20) and to provide the spatial positioning data of a potentially lost or distressed party to the beacon (14) for transmission along with an emergency signal (22).

A set of samples are returned by radio frequency identifier (RFID) reader corresponding to the readings of signals emitted from a particular RFID tag, each sample including a respective set of features identifying values of the attributes of the signals as detected. At least some of the features are provided as inputs to a random forest of decision trees, each providing a prediction that the particular RFID tag is located in one of a plurality of defined zones in a particular environment. From outputs of the plurality of decision trees based on the set of samples, it can be determined that the particular RFID tag is located in a particular one of the plurality of zones at a first instance in time.

A set of samples are returned by radio frequency identifier (RFID) reader corresponding to the readings of signals emitted from a particular RFID tag, each sample including a respective set of features identifying values of the attributes of the signals as detected. At least some of the features are provided as inputs to a random forest of decision trees, each providing a prediction that the particular RFID tag is located in one of a plurality of defined zones in a particular environment. From outputs of the plurality of decision trees based on the set of samples, it can be determined that the particular RFID tag is located in a particular one of the plurality of zones at a first instance in time.

According to one embodiment, an electronic apparatus includes receiver circuitry and controller circuitry. The receiver circuitry is configured to receive a radio signal from a target apparatus. The controller circuitry is configured to estimate first position information of the target apparatus based on a captured image; and estimate second position information of the target apparatus based on both the first position information and information of the radio signal.

Systems and methods for configuring and generating Narrowband Positioning Reference Signals (NPRS) for NB-IoT are provided. A network node provides (NPRS) configuration information indicating a system frame number (SFN) dependent resource mapping. A wireless device obtains a NPRS in accordance with the indicated SFN dependent resource mapping and uses it to perform a radio measurement operation.

An enhanced Long Range Navigation (eLORAN) system may include an eLORAN controller configured to obtain satellite-derived conductivity data and satellite-derived temperature data for different geographical positions and generate eLORAN correction factors based thereon. The eLORAN system may also include eLORAN transmitter stations. The eLORAN system may also include an eLORAN receiver device that may include an eLORAN receive antenna and an eLORAN receiver coupled to the eLORAN receive antenna and configured to receive the eLORAN correction factors. The eLORAN receiver device may also include a controller coupled to the eLORAN receiver. The controller may be configured to cooperate with the eLORAN transmitter stations to determine an eLORAN receiver position corrected based upon the eLORAN correction factors.