A disclosed method for a locating system comprises transmitting, by at least two transmitters on each of at least one transmitter platform, at least one signal, where each of the signals transmitted from a different transmitter is modulated at a different oscillation frequency, and the distance between the transmitters on each of the transmitter platforms is known. The method further comprises receiving, by a detector(s) on each of a target platform(s), the signal(s). When the detector(s) receives the signal(s), the signal(s) is focused at a location on the detector(s). Also, the method comprises determining an angle the signal(s) is being transmitted to the detector(s) from the transmitters by using the location(s). Further, the method comprises determining a relative position of each of the transmitter platform(s) with respect to the target platform(s) by using the angle(s) and by using the distance between the transmitters on each of the transmitter platform(s).

Certain cellular communication systems may use beamforming to create distinct signal beams in different radial directions relative to a base station. Upon receiving a request for the location of a mobile device, a position calculation function is used to calculate the location of the mobile device based on multiple types of location-related data. The location-related data may indicate the direction of the directional signal beam that is currently being used for communications between the mobile device and a base station. The direction may be used in conjunction with other location-related data, such as distance information, to estimate the location of the mobile device.

Certain cellular communication systems may use beamforming to create distinct signal beams in different radial directions relative to a base station. Upon receiving a request for the location of a mobile device, a position calculation function is used to calculate the location of the mobile device based on multiple types of location-related data. The location-related data may indicate the direction of the directional signal beam that is currently being used for communications between the mobile device and a base station. The direction may be used in conjunction with other location-related data, such as distance information, to estimate the location of the mobile device.

Methods and apparatus for determining a location and an orientation of a smart device via wireless communication. The location and direction of the smart device may be used to generate a data query and/or submit information into a data storage, referencing a time, place and direction of the smart device.

The indoor location based emergency care communication method includes that a wearable carrier sends a start signal and an emergency care communication signal to a fixed penetrating transmission module and a fixed non-penetrating transmission module when a caretaker wearing the wearable carrier has an emergency. The fixed penetrating transmission module generates a position signal of the wearable carrier located at one of the indoor spaces and a distance signal according to a detected distance between the wearable carrier and the nearest fixed non-penetrating transmission module. A processing unit receives and analyzes the emergency care communication signal, azimuth signal and distance signal to generate a position signal to be sent to a communication device. A warning unit receives the position signal and drives the communication device to issue a warning, so that a caregiving staff can know that the caretaker needs immediate rescue.

An apparatus includes an antenna and a transceiver. The transceiver transmits a first signal via the antenna, the first signal including a unique identification of the apparatus and a request for receive information about the first signal at a receiver. The transceiver receives from the receiver a second signal via the antenna, the second signal including first information about a direction of arrival (DoA) of the first signal at the receiver and second information indicative of a location of the receiver.

Embodiments of the present invention disclose a node processing method and apparatus, an electronic device, and a computer storage medium. The method includes: obtaining node data of a plurality of nodes; calculating an angle parameter between a first node and neighboring nodes and a distance parameter between the first node and the neighboring nodes, the first node being any of the plurality of nodes; determining an information amount of the first node based on the angle parameter and the distance parameter; and performing node deletion processing on the plurality of nodes based on the information amount.

Systems, methods, and apparatus for detecting UAVs in an RF environment are disclosed. An apparatus is constructed and configured for network communication with at least one camera. The at least one camera captures images of the RF environment and transmits video data to the apparatus. The apparatus receives RF data and generates FFT data based on the RF data, identifies at least one signal based on a first derivative and a second derivative of the FFT data, measures a direction from which the at least one signal is transmitted, analyzes the video data. The apparatus then identifies at least one UAV to which the at least one signal is related based on the analyzed video data, the RF data, and the direction from which the at least one signal is transmitted, and controls the at least one camera based on the analyzed video data.

Provided is a portable wireless communication device including: a relative position storage unit configured to store a relative position of each of a plurality of partner communication devices; a movement information reception unit configured to sequentially receive movement destination information indicating a movement destination of each of the plurality of partner communication devices; a relative position update unit configured to update the relative position of each of the plurality of partner communication devices based on the movement destination information; a transmission instruction unit configured to receive specification of a communication direction by a user, and to identify one of the partner communication devices based on the communication direction and the relative position of each of the partner communication devices; and a data transmission unit configured to transmit data to the identified partner communication device.

Provided is a portable wireless communication device including: a relative position storage unit configured to store a relative position of each of a plurality of partner communication devices; a movement information reception unit configured to sequentially receive movement destination information indicating a movement destination of each of the plurality of partner communication devices; a relative position update unit configured to update the relative position of each of the plurality of partner communication devices based on the movement destination information; a transmission instruction unit configured to receive specification of a communication direction by a user, and to identify one of the partner communication devices based on the communication direction and the relative position of each of the partner communication devices; and a data transmission unit configured to transmit data to the identified partner communication device.