In accordance with at least one aspect of this disclosure, a real time location services (RTLS) system, comprises one or more location anchor beacons configured to output a location anchor signal indicative of a location of the location anchor beacon in a physical space. One or more readers are configured to receive an asset tag signal from one or more asset tag beacons which are configured to receive the location anchor signal from the one or more location anchors. A location module is configured to receive the asset tag signal and to determine a physical location of the one or more asset tag beacons based on information indicative of a proximity to one or more of the one or more location anchor beacons included in the asset tag signal.

A method of a base station in a mobile communication system is provided, which includes receiving position information of at least one UE; determining an initial position of a UAV based on the position information; transmitting, to the UAV, control information related to the initial position and association information between the at least one UE and the UAV; receiving, from the UAV, first feature information related to a communication state between the at least one UE and the UAV; and transmitting control information related to a movement position of the UAV based on an output of a reinforced learning network to which the first feature information is input.

Disclosed in some examples are methods, systems, devices, and machine-readable mediums for providing a PNT system provided by stratospheric balloons. This stratospheric PNT system (SPNTS) replaces the space-segment of a standard PNTS with a stratospheric segment comprising one or more stratospheric balloons that provide PNTS signals usable to determine timing, positioning, and/or navigation for user devices.

Systems and methods are provided for worker protection system with ultra-wideband (UWB) based anchors. One or more wayside units placed on or near a track may be configured to form a work zone network, based on ultra-wideband (UWB) communications, corresponding to a work zone in an area surrounding or in proximity to the one or more wayside units. When the work zone network is formed, at least one wayside unit of the one or more wayside units may be configured to obtain ranging information to a train traversing the track, based on communications of UWB signals with at least one train-mounted unit deployed on the train, and the one or more wayside units are configured to generate, based on the ranging information, notifications relating to the train and/or the work zone.

A system for and method of fighting fires using a monitoring system in communication with a hazard mitigation robot. The monitoring system is comprised of a plurality of sensors receiving data that is analyzed by the monitoring system to identify a potential fire. When a potential fire is detected, the monitoring system dispatches one or more autonomous hazard mitigation robots which navigate to an indicated location, confirm the presence of a fire, and attempt to extinguish the fire using fire suppressant material carried onboard the hazard mitigation robot.

A method of a base station in a mobile communication system is provided, which includes receiving position information of at least one UE; determining an initial position of a UAV based on the position information; transmitting, to the UAV, control information related to the initial position and association information between the at least one UE and the UAV; receiving, from the UAV, first feature information related to a communication state between the at least one UE and the UAV; and transmitting control information related to a movement position of the UAV based on an output of a reinforced learning network to which the first feature information is input.

Systems and methods for navigating an aerial vehicle are provided. One example aspect of the present disclosure is directed to a method for navigating an aircraft. The method includes receiving, by one or more processors, one or more first geographic coordinates via an interface configured to receive geographic coordinates from a satellite transmission. The method includes receiving, by the one or more processors, one or more second geographic coordinates via an interface configured to receive geographic coordinates from a ground transmission. The method includes determining, by the one or more processors, that the one or more first geographic coordinates and the one or more second geographic coordinates are inconsistent. The method includes updating, by the one or more processors, a flight plan using the one or more second geographic coordinates when the one or more first geographic coordinates are inconsistent with the one or more second geographic coordinates.

Systems and methods for improved geolocation in a network are disclosed. An end node may transmit a signal. The signal may be received by a plurality of computing devices. Receipt times of the signal at the plurality of computing devices may be used to determine a location of the end node.

Disclosed is a beacon-based positioning system. A beacon position in which a beacon is installable is defined in a target space, and a path loss model of radio frequency (RF) signals between all beacon positions and all observation positions of a scanner is determined. Among all possible installation plans for the beacon positions, an installation plan in which different beacon signals, whose RSSIs calculated using the path loss model have significant values, are received in a number greater than or equal to a minimum reference number and a total number of the beacons installed is minimum is determined as an optimal installation plan. The optimization problem of determining the optimal installation plan may be expressed by binary linear programming.

Systems, methods, and computer-executable instructions for identifying a convergence of objects includes receiving, at a device, a first beacon from a beacon transmitter located within a first location. A first location is identified based on the first beacon. A second beacon is received that is transmitted from a wearable worn by an object. The object associated with the second beacon is identified. A convergence time of the object and device is determined. A camera associated with the first location is determined. Video data associated with the camera is retrieved. Video of the first location at the convergence time is retrieved from the video data.