A window breaker tool for use on a vehicle includes a body having a handle to enable a user to grip the tool, a glass breaker member extending from the handle configured to contact a glass window with force to break the glass window, and an accelerometer operatively coupled to the body to sense acceleration during impact and generate a signature signal. The tool also includes an RF signal communication device located on the tool for communicating with a plurality of RF signal communication devices on the vehicle to determine a location of the tool relative to the vehicle, wherein the RF signal communication device communicates with a controller for processing the signature signal and determining whether the signature signal is indicative of the tool in use to break a window, and wherein the controller further determines the tool is within the vehicle based on the location and outputs an alert signal.

A window breaker tool for use on a vehicle includes a body having a handle to enable a user to grip the tool, a glass breaker member extending from the handle configured to contact a glass window with force to break the glass window, and an accelerometer operatively coupled to the body to sense acceleration during impact and generate a signature signal. The tool also includes an RF signal communication device located on the tool for communicating with a plurality of RF signal communication devices on the vehicle to determine a location of the tool relative to the vehicle, wherein the RF signal communication device communicates with a controller for processing the signature signal and determining whether the signature signal is indicative of the tool in use to break a window, and wherein the controller further determines the tool is within the vehicle based on the location and outputs an alert signal.

In a method for determining a 3D directional vector between a sending device and a receiving device, the receiving device comprises at least two antenna arrays that each comprise a plurality of linearly arranged antenna elements that are aligned to different orientations. The method comprises receiving, with the antenna arrays, a signal sent from the sending device, sampling, based on the received signal, outputs of each antenna element of each antenna array at a plurality of time instants, determining, for each antenna array, a Propagator Direct Data Acquisition, PDDA, pseudo-spectrum by performing a 1-dimensional PDDA, 1D-PDDA, based on the sampled outputs of the respective antenna array and on a plurality of steering vectors associated with the respective antenna array, determining a maximum of each PDDA pseudo-spectrum, determining an angular quantity (Ψ) for each antenna array based on the respective maximum of the PDDA pseudo-spectrum, and determining the 3D directional vector based on the angular quantities (Ψ) of each antenna array and on the orientations of the antenna arrays.

An information processing apparatus includes: a processor configured to acquire position information of a communication device; and a storage configured to store first map information and second map information. The processor is further configured to, in a case in which the processor acquires position information a predetermined number of times of at least two or more, in a first partial area of plurality of first partial areas, determine that the communication device exists in the first partial area. The processor is further configured to, in a case in which the processor acquires position information a predetermined number of times of at least two or more, in a second partial area of plurality of second partial areas, determine that the communication device exists in the second partial area.

An information processing apparatus includes: a processor configured to acquire position information of a communication device; and a storage configured to store first map information and second map information. The processor is further configured to, in a case in which the processor acquires position information a predetermined number of times of at least two or more, in a first partial area of plurality of first partial areas, determine that the communication device exists in the first partial area. The processor is further configured to, in a case in which the processor acquires position information a predetermined number of times of at least two or more, in a second partial area of plurality of second partial areas, determine that the communication device exists in the second partial area.

A system and method applicable for determining the positions of radio tags based on triangulation and respective radio tag signals transmitted from each radio tag, where each of a set of base stations is configured to transmit a radio base signal including an identifier that uniquely identifies the base station, and other base stations of the set of base stations receive the radio base signal and forward received base station messages to a central control unit which determines a position for any added base station using triangulation and known positions for base stations already included in the system, in order to facilitate expanding the number of base stations in the system.

A system and method applicable for determining the positions of radio tags based on triangulation and respective radio tag signals transmitted from each radio tag, where each of a set of base stations is configured to transmit a radio base signal including an identifier that uniquely identifies the base station, and other base stations of the set of base stations receive the radio base signal and forward received base station messages to a central control unit which determines a position for any added base station using triangulation and known positions for base stations already included in the system, in order to facilitate expanding the number of base stations in the system.

Disclosed herein A UAV and/or UAV operator detector (1) configured to be mounted to an aircraft (2). The detector comprises an array of multiple Directional Radio Frequency (RF) antennae spaced apart from one another over two or three dimensions.

Disclosed herein A UAV and/or UAV operator detector (1) configured to be mounted to an aircraft (2). The detector comprises an array of multiple Directional Radio Frequency (RF) antennae spaced apart from one another over two or three dimensions.

Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) may determine an angle-based estimation capability of the UE. The UE may report the angle-based estimation capability of the UE to a network entity. In an aspect, a network entity may receive, from a user equipment (UE), information indicating an angle-based estimation capability of the UE. The network entity may determine, based on the angle-based estimation capability of the UE, an angle-based estimation configuration. The network entity may send the angle-based estimation configuration to the UE.