公开(公告)号：US10708172B2

公开(公告)日：2020-07-07

申请号：US15724207

申请日：2017-10-03

Applicant: Silver Spring Networks, Inc.

Inventor： Kamal Poorrezaei ,  Paul Dietrich

IPC: H04W40/10 ,  H04L12/707 ,  H04L12/703 ,  H04L12/721 ,  H04W84/12 ,  H04W40/34

Abstract: A battery-powered node within a wireless mesh network performs energy-aware packet routing based on multiple factors. The battery powered node computes, for a given link to an adjacent node, the energy needed to transmit a packet to the adjacent node. The battery-powered node also determines the amount of battery energy remaining in the adjacent node. Based on these two factors, the battery powered node computes a link cost associated with the link to the adjacent node. The battery-powered node performs a similar computation for all adjacent nodes and then forwards packets via these adjacent nodes based on the associated link costs. The battery-powered node also maintains a table of routes through adjacent nodes, and reroutes packets through different adjacent nodes in response to link failures.

公开(公告)号：US10412600B2

公开(公告)日：2019-09-10

申请号：US14271278

申请日：2014-05-06

Applicant: SILVER SPRING NETWORKS, INC.

Inventor： Elad Gottlib

IPC: H04W24/02 ,  H04W40/24

Abstract: A first subregion of a wireless mesh network is configured to transmit a data packet across multiple communication links to a second subregion of the wireless mesh network. Due to varying connectivity levels associated with the multiple communication links, the second subregion receives different versions of the data packet. A designated node within the second subregion receives the different versions and then combines those versions to reconstruct the data packet. The designated node may receive the multiple versions of the data packet from nodes within the first subregion and/or receive multiple versions of the data packet from nodes residing within the second subregion. In this fashion, the designated node leverages path diversity between the first and second subregions to remedy poor connectivity between those subregions.

公开(公告)号：US09983242B2

公开(公告)日：2018-05-29

申请号：US14967213

申请日：2015-12-11

Applicant: Silver Spring Networks, Inc.

Inventor： George H. Flammer, III

IPC: G01R21/133 ,  H02J13/00 ,  H04L12/24

CPC classification number: G01R21/133 ,  H02J3/00 ,  H02J13/00 ,  H02J13/0006 ,  H02J13/0075 ,  H04L41/0686 ,  H04L41/069 ,  H04L41/12 ,  Y02E60/74 ,  Y02E60/7853 ,  Y04S10/30 ,  Y04S40/126 ,  Y04S40/164 ,  Y04S40/166

Abstract: A wireless mesh network is configured to manage a power grid. Each node within the wireless mesh network is configured to detect and classify voltage fluctuations in power supplied by an upstream transformer coupled to the power grid. When a given node detects a particular type of fluctuation (i.e., an “event”), the node generates a timestamped event classification that reflects the type of event and a time when the event occurred. A server configured to manage the wireless mesh network receives timestamped event classifications from each node within the wireless mesh network and then performs a time correlation with the received timestamped event classifications to determine which nodes detected similar events. When two or more nodes detected the same event at similar times, the server determines that those nodes are coupled to the same transformer.

公开(公告)号：US10863581B2

公开(公告)日：2020-12-08

申请号：US16427552

申请日：2019-05-31

Applicant: ITRON NETWORKED SOLUTIONS, INC.

Inventor： Donald Eugene Sturek

IPC: H04W84/12 ,  H04W84/04 ,  H04L29/12 ,  H04W84/18 ,  H04W24/02 ,  H04W92/02

Abstract: A network node (MR/BR node) is configured as a mesh router node in a first wireless network comprised of a plurality of first nodes and as a border router node in a second wireless network comprised of a plurality of second nodes, the second wireless network distinct from the first wireless network. The MR/BR node has a unique first address in the first wireless network and a unique second address in the second wireless network. In this way, the MR/BR node can receive a first communication in the first wireless network via the first address, and transmit the received first communication to at least one of the second nodes in the second wireless network. The MR/BR node can also receive a second communication in the second wireless network via the second address, and transmit the received second communication to at least one of the first nodes in the first wireless network.

公开(公告)号：US10609562B2

公开(公告)日：2020-03-31

申请号：US15949244

申请日：2018-04-10

Applicant: Itron Networked Solutions, Inc.

Inventor： Raj Vaswani ,  Wilson Chuen Yew Yeung ,  Cristina Seibert ,  Nelson Bruce Bolyard ,  Benjamin N. Damm ,  Michael C. Stjohns

IPC: H04L29/06 ,  H04W12/08 ,  G06F21/33 ,  G06F21/62 ,  G06F21/60 ,  G07C9/00 ,  H04L9/08 ,  H04L9/32 ,  G06Q50/06

Abstract: To provide overall security to a utility management system, critical command and control messages that are issued to components of the system are explicitly approved by a secure authority. The explicit approval authenticates the requested action and authorizes the performance of the specific action indicated in a message. Key components of the utility management and control system that are associated with access control are placed in a physical bunker. With this approach, it only becomes necessary to bunker those subsystems that are responsible for approving network actions. Other management modules can remain outside the bunker, thereby avoiding the need to partition them into bunkered and non-bunkered components. Access to critical components of each of the non-bunkered subsystems is controlled through the bunkered approval system.

公开(公告)号：US10608962B2

公开(公告)日：2020-03-31

申请号：US15605757

申请日：2017-05-25

Applicant: Silver Spring Networks, Inc.

Inventor： Bruce Edwards

IPC: H04L12/861 ,  H04L12/933 ,  H04L12/931 ,  H04W56/00 ,  H04W72/00 ,  H04L5/00

Abstract: A node in network is configured to buffer data received from other nodes across multiple channels. The node process a portion of the buffered data associated with a subset of those channels. When the node receives data on that subset of channels that includes a notification, the node then processes a larger portion of the buffered data associated with a larger number of channels. In doing so, the node may identify additional notifications include within data that was buffered but not previously processed. The node may also coordinate with other nodes in order to process buffered data upon identification of a notification.

公开(公告)号：US10477500B2

公开(公告)日：2019-11-12

申请号：US15452637

申请日：2017-03-07

Applicant: Silver Spring Networks, Inc.

Inventor： Kamal Poorrezaei

IPC: H04W84/22 ,  H04W56/00 ,  H04W84/18 ,  H04W52/02

Abstract: A wireless mesh network includes a mesh of continuously-powered devices (CPDs) and a mesh of battery-powered devices (BPDs). The BPDs are organized into hop layers based on hopping distance to the mesh of CPDs. The CPDs transmit time beacons to BPDs in a first hop layer during a first receive window associated with the first hop layer. The BPDs in the first hop layer then transmit time beacons to BPDs in a second hop layer during a second receive window. In this manner, the wireless mesh network propagates time values throughout the BPD mesh. Based on these time values, the BPDs power on during short time intervals to exchange data with neighboring BPDs, and then power off for longer time intervals, thereby conserving battery power. The techniques described herein for conserving battery power for BPDs may also be applied to conserve power consumption of CPDs.

公开(公告)号：US10348513B2

公开(公告)日：2019-07-09

申请号：US15714777

申请日：2017-09-25

Applicant: Silver Spring Networks, Inc.

Inventor： Jana Van Greunen ,  Sterling Hughes ,  Peter Hunt ,  William E. San Filippo, III

IPC: G06F15/16 ,  H04L12/18 ,  H04L27/28 ,  H04L12/413

Abstract: A node within a wireless mesh network is configured to forward a high-priority message to adjacent nodes in the wireless mesh network by either (i) transmitting the message during successive timeslots to the largest subset of nodes capable of receiving transmissions during each timeslot, or (ii) transmitting the message on each different channel during the timeslot when the largest subset of nodes are capable of receiving transmissions on each of those channels.

公开(公告)号：US10255644B2

公开(公告)日：2019-04-09

申请号：US15402088

申请日：2017-01-09

Applicant: ITRON NETWORKED SOLUTIONS, INC.

Inventor： Gary Grossman ,  Robert Tatsumi ,  Peter Santangeli ,  Jonathan Gay ,  Matthew Smith

IPC: G06Q50/06 ,  G01R21/133 ,  G01W1/00 ,  H04L29/06 ,  G06Q10/06 ,  G06T11/20

Abstract: A system and method analyzes resource consumption without requiring sensors at every device for which consumption is analyzed. Data rates used to provide resource use information may be increased or decreased based on user actions.

公开(公告)号：US10193778B2

公开(公告)日：2019-01-29

申请号：US15866945

申请日：2018-01-10

Applicant: SILVER SPRING NETWORKS, INC.

Inventor： Raj Vaswani ,  Jana van Greunen ,  Aditi Dubey ,  Kunal Pankaj Shah

IPC: G06F13/00 ,  H04L12/26 ,  G01D4/00 ,  H04W84/18

Abstract: A communication device detects whether anomalous events occur with respect to at least one node in a utility network. The communication device has recorded therein threshold operating information and situational operating information. The threshold operating information includes data indicative of configured acceptable operating parameters of nodes in the network based on respective locational information of the nodes. The situational information includes data indicative of configured operation data expected to be received from nodes in the network during a predetermined time period, based on a condition and/or event occurring during the time period. The communication device receives operation data from nodes in the network, and determines whether the operation data from a node constitutes an anomalous event based on a comparison of the received operation data with (i) the threshold operating information defined for the node and (ii) the situational information. The communication device outputs notification of any determined anomalous event.