SYSTEMS AND METHODS FOR POSITIONING ASSETS OVER A WIRELESS NETWORK

    公开(公告)号:US20230209309A1

    公开(公告)日:2023-06-29

    申请号:US17560862

    申请日:2021-12-23

    摘要: Systems and methods for positioning assets over a wireless network are provided. In one embodiment, the method comprises: building, at a topology entity communicatively coupled to a wireless network a low-resolution spatial topology of said wireless network; selecting a list of a plurality of participating anchors for participating in a plurality of ranging events with a participating tag positionally associated with a designated asset; sending to the participating tag and to each of the participating anchors, an indication that a plurality of ranging events is to be executed therebetween; and executing, between the participating tag and each of the participating anchors, a ranging event of said plurality of ranging events; and computing, at a positioning engine a position of the participating tag and the designated asset based on a ranging information generated by the plurality of ranging events.

    Method and system for radiofrequency localization of transmitting devices via a mesh network

    公开(公告)号:US11686805B1

    公开(公告)日:2023-06-27

    申请号:US17080729

    申请日:2020-10-26

    申请人: ZaiNar, Inc.

    IPC分类号: G01S5/02 G01S5/14 H04W84/18

    摘要: A method including, at each node in each pair of nodes in a network: transmitting an outbound synchronization signal; generating a self-receive signal based on the outbound synchronization signal; detecting the self-receive signal at a self-receive TOA; detecting an inbound synchronization signal; based on the pair of self-receive TOAs and the pair of synchronization TOAs, for each pair of nodes in the network: calculating a pairwise time offset and distance; for each node in the network: based on the set of pairwise distances, calculating a location and a time bias of the node. The method also includes: at each node in the network, detecting a localization signal, transmitted by a device, at a localization TOA; and calculating a location of the device based on, for each node in the network, the localization signal detected at the node, and the time bias and the relative location of the node.

    Position Calculating Method, Distance Calculating Method, and Beacon

    公开(公告)号:US20190208492A1

    公开(公告)日:2019-07-04

    申请号:US16331598

    申请日:2017-09-25

    IPC分类号: H04W64/00 H04B17/318 G01S5/02

    摘要: In a position calculating method performed by a system including beacons, and a control device capable of communicating with the beacons: at least one of the plurality of beacons receives, from a terminal present in the radio wave reaching distance of the beacon, a first signal including terminal identification information identifying the terminal, measures the reception strength of the received signal, and transmits a second signal which includes the terminal identification information, the reception strength and beacon identification information identifying the beacon; and the control device receives the second signal from one of the plurality of beacons, and, on the basis of the position information of the beacon corresponding to the beacon identification information included in the second signal, and on the basis of the reception strength included in the second signal, calculates the position of the terminal corresponding to the terminal identification information included in the second signal.