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公开(公告)号：US20230217215A1
公开(公告)日：2023-07-06
申请号：US17566530
申请日：2021-12-30
CPC分类号： H04W4/029 , G01S5/14 , G01S5/02526 , G01S13/46 , G01S13/0209 , H04W4/023 , H04W4/026 , H04W48/16 , G01S2013/468
摘要： In aspects of environment dead zone determination based on UWB ranging, a system includes ultra-wideband (UWB) radios associated with respective devices in an environment. An automation controller receives UWB ranging data from the UWB radios, and can monitor locations of the respective devices in the environment. The automation controller can detect a loss of coverage by a device connected in the environment, and determine a coverage dead zone within the environment at the location of the loss of coverage by the device based on the UWB ranging data. A computing device can implement the automation controller that receives the UWB ranging data from the UWB radios, and monitors the locations of the respective devices in the environment. The automation controller can detect the loss of coverage by the device, and determine the coverage dead zone within the environment at the location of the loss of coverage by the device.
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公开(公告)号：US20230209309A1
公开(公告)日：2023-06-29
申请号：US17560862
申请日：2021-12-23
申请人： RedLore Canada Inc.
发明人： David MICALLEF , Niek VAN DIERDONCK
CPC分类号： H04W4/029 , H04W4/023 , G01S5/14 , G01S5/0268
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.
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33.发明授权公开(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.
CPC分类号： G01S5/0221 , G01S5/0215 , 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.
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公开(公告)号：US11662477B2
公开(公告)日：2023-05-30
申请号：US17318764
申请日：2021-05-12
CPC分类号： G01S19/425 , G01S19/43 , G01S5/0221 , G01S5/14 , G01S19/13 , G01S19/31
摘要： A system and method for determining the location of a vehicle when GNSS signals are not available use triangulation between one or two radio transmitters and, respectively, two or one radio receivers mounted on the vehicle. The distance between each radio transmitter and/or each radio receiver can be determined according a phase difference between received radio signals. The radio signals can have the geographical location of the radio transmitter included therein. Utilizing the demodulated geographical location of each radio transmitter and the distance between the radio transmitter and each radio receiver, triangulation can be used to determine the geographical location of the vehicle.
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公开(公告)号：US11659375B2
公开(公告)日：2023-05-23
申请号：US17671493
申请日：2022-02-14
申请人： RapidSOS, Inc.
发明人： Preet Anand , Peter Antypas , Motiejus Osipovas
CPC分类号： H04W4/90 , G01S5/14 , G01S19/46 , H04W4/02 , H04W4/025 , H04W4/029 , H04W76/50 , H04L67/02 , H04W80/12
摘要： A system and method are provided in accordance with the various aspects of the invention that enhance the information regarding a caller and a call location. Such calls are typically sent to a dispatcher that handles urgent or emergency calls. The information provided can be in the form of a message that is includes specifics about the call initiator and the nature of and/or reason for the call; a message that is converted to verbal form from text-to-speech; and/or the message may include location information, especially as it relates to representing a wireless device as a landline location based on nearby communication options, such as Wi-Fi or Bluetooth beacons.
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公开(公告)号：US20190208492A1
公开(公告)日：2019-07-04
申请号：US16331598
申请日：2017-09-25
发明人： Hajime Maruta , Naoya Torigoe , Shingo Fujishima
IPC分类号： H04W64/00 , H04B17/318 , G01S5/02
CPC分类号： H04W64/00 , G01S5/02 , G01S5/0231 , G01S5/14 , G01S11/02 , H04B17/318 , H04W88/02
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.
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公开(公告)号：US20190208367A1
公开(公告)日：2019-07-04
申请号：US16298192
申请日：2019-03-11
发明人： Yu Yoshiie , Mika Hirama , Akihiko Fujiwara
CPC分类号： H04W4/029 , G01C21/165 , G01C21/206 , G01S5/02 , G01S5/0294 , G01S5/14 , G01S13/58
摘要： A positioning device includes a processor configured to calculate a first neighboring time at which the mobile device becomes closest to a first base station in the plurality of base stations based on the received signal strength data and a second neighboring time at which the mobile device becomes closest to a second base station of the plurality of base stations, and convert the relative movement data in the second storage device into position coordinates data specifying an absolute position of the mobile device in an absolute coordinate system using the first base station as a reference point from the first neighboring time to the second neighboring time.
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公开(公告)号：US20190141473A1
公开(公告)日：2019-05-09
申请号：US16241758
申请日：2019-01-07
申请人： Infinite Leap, Inc.
发明人： John A. Swart
CPC分类号： H04W4/02 , G01S5/0036 , G01S5/14 , G08B13/2462 , H04L29/08657 , H04L67/12 , H04L67/18 , H04M1/72519 , H04M1/72522 , H04W4/33 , H04W4/80 , H04W4/90 , H04W8/005 , H04W64/00
摘要： The present invention relates generally to a real-time location system (RTLS) having tags, bridges, bay-level event sensors and a location engine. To determine which bay a tag is in, bay-level event sensors sense motion events in the bay, transmit the motion event reports to a location engine, and/or tags. Tags contain an accelerometer, to sense motion of the tags. A series of location-engine steps estimates the bay-level-location of the tags based on a combination of received signal-strength analysis, and a comparison of tag-motion status to the perceived motion events in a bay. The analysis of tag-motion status and motion-in-bay events produces a better estimate of bay-level location of the tag than a received-signal-strength estimate can produce alone.
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公开(公告)号：US20190124475A1
公开(公告)日：2019-04-25
申请号：US16214890
申请日：2018-12-10
申请人： Infinite Leap, Inc.
发明人： John A. Swart
CPC分类号： H04W4/029 , G01S5/0036 , G01S5/14 , G08B13/2462 , H04L67/18 , H04W4/02 , H04W4/027 , H04W4/33 , H04W4/80 , H04W4/90 , H04W8/005
摘要： A real-time location system (RTLS) uses transmitting and listening tags, bridges, and beacons. The fixed beacons broadcast BLE advertisements containing motion-status information about recent history of perceived motion in. a room as determined from a motion sensor in the beacon. The bridges forward the beacon's received advertisements to a location engine, which records timestamps of motion events seen by each beacon in each room. One or more tags then report their own motion status based on a tag-based accelerometer. The system utilizes a series of location-engine steps, to estimate the room-location of the tags based on a specific combination of RSSI analysis, and a comparison of tag-motion history to the perceived arid recorded motion-status in a room. This analysis of tag-motion history and motion-in-room status produces a better estimate of room-level location of the tag than can be estimated by simple proximity or multi-lateration using radio signal strengths.
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公开(公告)号：US20190058965A1
公开(公告)日：2019-02-21
申请号：US16168538
申请日：2018-10-23
CPC分类号： G01S5/0252 , G01C21/18 , G01C21/206 , G01S5/14 , H04B17/318 , H04W4/02 , H04W4/023 , H04W4/026 , H04W4/027 , H04W4/33 , H04W4/80 , H04W64/00 , H04W64/006 , H04W84/042 , H04W84/12 , H04W88/02 , H04W88/08
摘要： Systems and methods to determine a location of a mobile device based on a radio frequency navigation system and an inertial navigation system, where the radio frequency navigation system is used to determine a location of the mobile device in reference to a map of radio frequency signals and the inertial navigation system is based on dead reckoning the position of the mobile device based on measurements from motion sensors and/or magnetic field sensors. The position determination results from the radio frequency navigation system and the inertial navigation system are combined to determine two successive locations. A heading of the user of the mobile device is computed based on weighted averages for the two successive locations.
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