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公开(公告)号：US11228999B2
公开(公告)日：2022-01-18
申请号：US16595134
申请日：2019-10-07
Applicant: Locix, Inc.
Inventor： Manu Seth , Lingkai Kong , Tommi Ylamurto , Vivek Subramanian
Abstract: Systems and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, a method comprises initiating calibration, with processing logic, of at least one component of RF circuitry having a transmit chain and a receive chain of a first wireless node by generating a first loopback calibration signal and passing this first loopback calibration signal through the transmit chain and the receive chain of the first wireless node. The method further includes measuring a first transmit time delay for passing the first loopback calibration signal through the transmit chain and also measuring a first receive time delay for passing the first loopback calibration signal through the receive chain of the first wireless node.
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2.发明申请公开(公告)号：US20200305113A1
公开(公告)日：2020-09-24
申请号：US16894023
申请日：2020-06-05
Applicant: Locix Inc.
Inventor： Manu Seth , Lingkai Kong , Tommi Ylamurto , Vivek Subramanian
IPC: H04W64/00 , H04L12/26 , H04L12/841 , G01S5/00 , H04L12/24 , G01S5/02 , H04W28/02 , H04L12/733 , H04L12/727
Abstract: Systems and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, an asynchronous system includes a first wireless node having a wireless device with one or more processing units and RF circuitry for transmitting and receiving communications in the wireless network architecture including a first RF signal having a first packet. The system also includes a second wireless node having a wireless device with a transmitter and a receiver to enable bi-directional communications with the first wireless node in the wireless network architecture including a second RF signal with a second packet. The first wireless node determines a time of flight estimate for localization based on a time estimate of round trip time of the first and second packets and a time estimate that is based on channel sense information of the first and second wireless nodes.
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3.发明申请公开(公告)号：US20190064315A1
公开(公告)日：2019-02-28
申请号：US15684895
申请日：2017-08-23
Applicant: LOCIX Inc.
Inventor： Tommi Ylamurto
Abstract: Systems and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, a method for localization of nodes in a wireless network architecture includes receiving, with processing logic of a first wireless node having a wireless device, a RF signal from a second wireless node having a wireless device, measuring, with the first wireless node, first channel state information of a first frequency channel of the RF signal, and measuring, with the first wireless node, second channel state information of a second frequency channel of the RF signal with the first and second frequency channels being non-contiguous or discontinuous channels. The method further includes determining delay profile estimation between the first and second wireless nodes based on the first and second channel state information without phase alignment.
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4.发明授权公开(公告)号：US11276308B2
公开(公告)日：2022-03-15
申请号：US16681060
申请日：2019-11-12
Applicant: Locix Inc.
Inventor： Teymur Bakhishev , Vivek Subramanian , Vikram Pavate , Tommi Ylamurto
Abstract: Systems and methods for using radio frequency signals and sensors to monitor environments (e.g., indoor building and adjacent outdoor environments) are disclosed herein. In one embodiment, a system for providing a wireless asymmetric network comprises a hub having one or more processing units and at least one antenna for transmitting and receiving radio frequency (RF) communications in the wireless asymmetric network and a plurality of sensor nodes each having a wireless device with a transmitter and a receiver to enable bi-directional RF communications with the hub in the wireless asymmetric network. The one or more processing units of the hub are configured to determine localization of the plurality of sensor nodes within the wireless asymmetric network, to monitor loading zones and adjacent regions within a building based on receiving information from at least two sensor nodes, and to determine for each loading zone whether a vehicle currently occupies the loading zone.
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5.发明申请公开(公告)号：US20200082719A1
公开(公告)日：2020-03-12
申请号：US16681060
申请日：2019-11-12
Applicant: Locix Inc.
Inventor： Teymur Bakhishev , Vivek Subramanian , Vikram Pavate , Tommi Ylamurto
Abstract: Systems and methods for using radio frequency signals and sensors to monitor environments (e.g., indoor building and adjacent outdoor environments) are disclosed herein. In one embodiment, a system for providing a wireless asymmetric network comprises a hub having one or more processing units and at least one antenna for transmitting and receiving radio frequency (RF) communications in the wireless asymmetric network and a plurality of sensor nodes each having a wireless device with a transmitter and a receiver to enable bi-directional RF communications with the hub in the wireless asymmetric network. The one or more processing units of the hub are configured to determine localization of the plurality of sensor nodes within the wireless asymmetric network, to monitor loading zones and adjacent regions within a building based on receiving information from at least two sensor nodes, and to determine for each loading zone whether a vehicle currently occupies the loading zone.
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Patent Agency Ranking
公开(公告)号：US20230011851A1
公开(公告)日：2023-01-12
申请号：US17371963
申请日：2021-07-09
Applicant: Locix, Inc.
Inventor： Mark Bilstad , Tommi Ylamurto , Manu Seth
Abstract: In one embodiment, an asynchronous wireless system for localization of nodes comprises a first wireless node being configured to receive a first communication from a third wireless node having an unknown location, to determine time difference of arrival (TDoA) information of the reception of the first communication between each of the first and a second wireless node, to determine TDoA ranging including a relative or absolute position of the third wireless node using the time difference of arrival information, and to synchronize the first and second wireless nodes based on a second communication with the synchronization being decoupled in time from the first communication. In another embodiment, a computer implemented method comprises receiving, with first and second wireless anchor nodes, packets from a wireless arbitrary device and performing time difference of arrival ranging upon reception of the packets between each of the first and the second wireless anchor nodes.
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7.发明授权公开(公告)号：US11030902B2
公开(公告)日：2021-06-08
申请号：US16727566
申请日：2019-12-26
Applicant: Locix Inc.
Inventor： Teymur Bakhishev , Vivek Subramanian , Vikram Pavate , Tommi Ylamurto
Abstract: Systems and methods for using radio frequency signals and sensors to monitor environments (e.g., indoor building, industrial environments) are disclosed herein. In one embodiment, a system for providing a wireless asymmetric network comprises a hub having one or more processing units and at least one antenna for transmitting and receiving radio frequency (RF) communications in the wireless asymmetric network and a plurality of sensor nodes each having a wireless device with a transmitter and a receiver to enable bi-directional RF communications with the hub in the wireless asymmetric network. The one or more processing units of the hub are configured to determine localization of the plurality of sensor nodes within the wireless asymmetric network, to monitor regions within an environment for human presence and location of at least one robot, to determine human presence information to indicate whether a human is present within the monitored regions, and to determine a location for the human based on the human presence information when a human is present within the monitored regions.
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公开(公告)号：US10575275B2
公开(公告)日：2020-02-25
申请号：US15684891
申请日：2017-08-23
Applicant: LOCIX Inc.
Inventor： Tommi Ylamurto , Manu Seth
Abstract: Systems and methods for adaptively determining locations of wireless nodes in a network architecture are disclosed herein. In one example, a system includes a first plurality of wireless sensor nodes each having a known location and a second plurality of wireless sensor nodes each having an unknown location in a wireless network architecture. One or more processing units of a wireless sensor node of the first plurality of wireless nodes are configured to execute instructions to determine distance estimates between the first plurality of wireless sensor nodes and the second plurality of wireless sensor nodes for localization, determine error metric information for each distance estimate, and adaptively select the determined distance estimates for localization based on the error metric information.
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公开(公告)号：US10551479B1
公开(公告)日：2020-02-04
申请号：US16283470
申请日：2019-02-22
Applicant: Locix, Inc.
Inventor： Tommi Ylamurto , Manu Seth , Lingkai Kong , Vivek Subramanian
Abstract: Systems, apparatuses, and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, a system for localization of nodes in a wireless network architecture comprises a plurality of wireless anchor nodes each having a known location and a wireless device with one or more processing units and RF circuitry for transmitting and receiving communications in the wireless network architecture and a wireless node having a wireless device with a transmitter and a receiver to enable bi-directional communications with the plurality of wireless anchor nodes in the wireless network architecture. One or more processing units of at least one of the plurality of wireless anchor nodes are configured to execute instructions to determine a set of possible ranges between each anchor node and the wireless node having an unknown location and to perform a triangulation algorithm that iterates through possible locations of the wireless node to minimize error.
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10.发明授权公开(公告)号：US10514704B2
公开(公告)日：2019-12-24
申请号：US15789603
申请日：2017-10-20
Applicant: Locix Inc.
Inventor： Teymur Bakhishev , Vivek Subramanian , Vikram Pavate , Tommi Ylamurto
IPC: G05D1/02 , H04W4/021 , H04W24/08 , H04W4/33 , G01C21/00 , G01S1/00 , G01S5/02 , H04W4/02 , G01S11/06 , H04W24/10 , H04W84/22 , G01S13/82
Abstract: Systems and methods for using radio frequency signals and sensors to monitor environments (e.g., indoor environments) are disclosed herein. In one embodiment, a system for providing a wireless asymmetric network comprises a hub having one or more processing units and at least one antenna for transmitting and receiving radio frequency (RF) communications in the wireless asymmetric network and a plurality of sensor nodes each having a wireless device with a transmitter and a receiver to enable bi-directional RF communications with the hub in the wireless asymmetric network. The one or more processing units of the hub are configured to execute instructions to determine at least one of motion and occupancy within the wireless asymmetric network based on a power level of the RF communications.
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