A split architecture is disclosed for determining the location of a wireless device in a heterogeneous wireless communications environment. A detector within the device or another component of the environment receives signals including parameters for a localization signal of the device. The parameters describe known in advance signals within the signals. Additional metadata including each frame start of the signals and assistance data and auxiliary information are also received. The known in advance signals are detected based on the parameters of the localization signal. Samples extracted from the known in advance signals are then processed and compressed and sent with other collect data to a locate server remote from the detector. The location server uses that information as well as similar information about the environment to calculate the location of the device, as well as perform tracking and navigation of the device, and report such results to the environment.

A system for monitoring and/or recording a position of a tool in an elevator shaft includes a position measuring system for measuring a position of the tool relative to an elevator car; a height measuring system for measuring a height of the elevator car in the elevator shaft; and an evaluation system designed to receive measured data from the position measuring system and the elevation measuring system and to determine a position of the tool relative to the elevator shaft from the measured data.

A system and method for a second wireless device to establish distance and location of a first device which is transmitting radio waves includes the first and second devices. Each second device includes two or more (N in number) receiving antennas. An angle between the directions in which adjacent receiving antennas receive the strongest signals is 360/N. The second device obtains a received signal strength indicator (RSSI) of each receiving antenna receiving signals from the first device, and from the two strongest receiving antennas, calculation of an angle between the first device and one of the adjacent receiving antennas can be performed. The distance between the first device and the second device can also be calculated.

A system and method for a second wireless device to establish distance and location of a first device which is transmitting radio waves includes the first and second devices. Each second device includes two or more (N in number) receiving antennas. An angle between the directions in which adjacent receiving antennas receive the strongest signals is 360/N. The second device obtains a received signal strength indicator (RSSI) of each receiving antenna receiving signals from the first device, and from the two strongest receiving antennas, calculation of an angle between the first device and one of the adjacent receiving antennas can be performed. The distance between the first device and the second device can also be calculated.

Disclosed are a positioning communication device, a positioning method, and a computer storage medium. The positioning communication device comprises: at least two positioning antenna groups (111), at least used for receiving a positioning signal sent by a beacon, wherein each positioning antenna group (111) comprises two positioning antennas arranged separately, and the positioning ranges of different positioning antenna groups (111) are at least partially different; a selection switching module (112) respectively connected to the at least two positioning antenna groups (111); and a processing module (113), connected to the positioning antenna groups (111) by means of the selection switching module (112), and used for controlling, according to orientation information of the beacon at a previous moment, the positioning antenna group (111) turned on by the selection switching module (112), and determining, according to the positioning signal received by the positioning antenna group (111) turned on, orientation information of the beacon at the current moment.

Disclosed are a positioning communication device, a positioning method, and a computer storage medium. The positioning communication device comprises: at least two positioning antenna groups (111), at least used for receiving a positioning signal sent by a beacon, wherein each positioning antenna group (111) comprises two positioning antennas arranged separately, and the positioning ranges of different positioning antenna groups (111) are at least partially different; a selection switching module (112) respectively connected to the at least two positioning antenna groups (111); and a processing module (113), connected to the positioning antenna groups (111) by means of the selection switching module (112), and used for controlling, according to orientation information of the beacon at a previous moment, the positioning antenna group (111) turned on by the selection switching module (112), and determining, according to the positioning signal received by the positioning antenna group (111) turned on, orientation information of the beacon at the current moment.

Offloading of location computation from a location server to an access point through the use of projections on base phase vectors may be provided. First, an Access Point (AP) may receive a set of two or more base phase vectors from a location server. Next, the AP may measure a measured phase vector for a first signal from a user device. Then, the AP can determine projection values based on a comparison of the measured phase vector to each base phase vector. From these comparisons, the AP can determine a subset of base phase vectors with the highest projection values. The AP can then send the projection values and the subset of base phase vectors to the location server, wherein the location server determines the device location from these projection values and subset of base phase vectors.

Wireless-enabled devices are becoming more ubiquitous in society. Detection and analysis of movement of these devices in a known physical space can aid in detecting cyber threats present in the physical space, as well as physical threats to life in the space. Embodiments of the present disclosure are directed to solutions for detecting, monitoring, and analyzing wireless-enabled device movement and utilizing this information to determine a probable threat in a physical space.

Disclosed is a signal source estimation method and apparatus performing the same, the signal source estimation method including acquiring first reception signals received by first receivers, among signals radiated from signal sources, selecting second receivers receiving reception signals to be used to estimate the signal sources, from among the first receivers based on the first reception signals, and detecting the number of signal sources based on second reception signals received by the second receivers.

Methods and apparatus for verifying respective positions of Nodes based upon wireless communications between Nodes included in an array. Values for variables derived from multiple wireless transmissions between Nodes are aggregated, and a position of a particular Node may be determined based upon multiple data sets generated by multiple communications between disparate Nodes. In addition, the presence of an obstacle to wireless communication between some Nodes may be derived from the data sets. A user interface may provide a pictorial view of positions of all or some Nodes in an array, as well as a perceived obstruction.