公开(公告)号：US20140089912A1

公开(公告)日：2014-03-27

申请号：US13624837

申请日：2012-09-21

Applicant: SILVER SPRING NETWORKS, INC.

Inventor： Jennifer WANG ,  Evan MCCLURE

IPC: G06F9/44

CPC classification number: G06F8/65

Abstract: A technique for providing an improved way to update the nodes of a wireless mesh network is described. An upgrade engine executing on a server connected to the wireless mesh network determines a topology of the network, subdivides the network into a plurality of clusters based on the topology of the network, and seeds a small number of nodes within each cluster. The upgrade engine manages the upgrade process, notifying particular nodes within each cluster when to search for an upgrade package (e.g., an image of a new firmware) stored in an adjacent node. The upgrade engine also monitors success and failure of each node and delivers the upgrade package to a node directly when the node fails to download the upgrade package from an adjacent node within the network.

Abstract translation: 描述了一种用于提供更新无线网状网络的节点的改进方法的技术。 在连接到无线网状网络的服务器上执行的升级引擎确定网络的拓扑，基于网络的拓扑将网络细分为多个集群，并且在每个集群内种子数量少的节点。 升级引擎管理升级过程，当搜索存储在相邻节点中的升级包（例如，新固件的映像）时，通知每个集群内的特定节点。 升级引擎还监视每个节点的成功和失败，并且当节点无法从网络中的相邻节点下载升级包时，直接将升级包传递到节点。

公开(公告)号：US20140089443A1

公开(公告)日：2014-03-27

申请号：US13625764

申请日：2012-09-24

Applicant: SILVER SPRING NETWORKS, INC.

Inventor： Jana VAN GRUENEN ,  Sterling HUGHES ,  Peter HUNT ,  Wiliam E. SAN FILIPPO, III

IPC: G06F15/16

CPC classification number: H04L12/1895 ,  G06F15/16 ,  H04L12/413 ,  H04L27/28

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.

Abstract translation: 无线网状网络内的节点被配置为通过（i）在连续时隙期间将消息发送到能够在每个时隙期间接收传输的最大节点子集，将高优先级消息转发到无线网状网络中的相邻节点，或 （ii）当节点的最大子集能够在这些信道中的每一个上接收传输时，在时隙期间在每个不同信道上发送消息。

公开(公告)号：US20130229947A1

公开(公告)日：2013-09-05

申请号：US13862985

申请日：2013-04-15

Applicant: SILVER SPRING NETWORKS, INC.

Inventor： Raj VASWANI ,  Jana Van Greunen ,  Aditi Dubey ,  Kunal Pankaj Shah

IPC: H04W84/18

CPC classification number: H04L43/0817 ,  G01D4/004 ,  H04L43/16 ,  H04W84/18 ,  Y02B90/242 ,  Y02B90/246 ,  Y04S20/322 ,  Y04S20/36 ,  Y04S20/42

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.

公开(公告)号：US10962578B2

公开(公告)日：2021-03-30

申请号：US14643985

申请日：2015-03-10

Applicant: SILVER SPRING NETWORKS, INC.

Inventor： Charles P. Sum ,  George H. Flammer, III

IPC: G06F15/173 ,  G01R25/00 ,  H02J3/00 ,  G01R21/00 ,  H04L29/08 ,  H04L29/06 ,  H04L12/24 ,  H02J13/00 ,  H02J3/24 ,  H04L12/26 ,  H02J3/06

Abstract: Nodes within a wireless mesh network are configured to monitor time series data associated with a utility network, including voltage fluctuations, current levels, temperature data, humidity measurements, and other observable physical quantities. The nodes execute stream functions to process the recorded time series data and generate data streams. The node is configured to transmit generated data streams to neighboring nodes. A neighboring node may execute other stream functions to process the received data stream(s), thereby generating additional data streams. A server coupled to the wireless mesh network collects and processes the data streams to identify events occurring within the network.

公开(公告)号：US10809288B2

公开(公告)日：2020-10-20

申请号：US14643978

申请日：2015-03-10

Applicant: SILVER SPRING NETWORKS, INC.

Inventor： Charles P. Sum ,  George H. Flammer, III

IPC: G01R25/00 ,  H02J3/00 ,  G01R21/00 ,  H04L29/08 ,  H04L29/06 ,  H04L12/24 ,  H02J13/00 ,  H02J3/24 ,  H04L12/26 ,  H02J3/06

Abstract: Nodes within a wireless mesh network are configured to monitor time series data associated with a utility network, including voltage fluctuations, current levels, temperature data, humidity measurements, and other observable physical quantities. The nodes execute stream functions to process the recorded time series data and generate data streams. The node is configured to transmit generated data streams to neighboring nodes. A neighboring node may execute other stream functions to process the received data stream(s), thereby generating additional data streams. A server coupled to the wireless mesh network collects and processes the data streams to identify events occurring within the network.

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：US20190104460A1

公开(公告)日：2019-04-04

申请号：US15724205

申请日：2017-10-03

Applicant: Silver Spring Networks, Inc.

Inventor： Kamal Poorrezaei ,  Paul Dietrich

IPC: H04W40/10 ,  H04L12/721 ,  H04L12/26

CPC classification number: H04W40/10 ,  H04L43/0811 ,  H04L43/0882 ,  H04L43/16 ,  H04L45/124 ,  H04L45/70 ,  H04W84/12

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：US20190104056A1

公开(公告)日：2019-04-04

申请号：US15724207

申请日：2017-10-03

Applicant: Silver Spring Networks, Inc.

Inventor： Kamal Poorrezaei ,  Paul Dietrich

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

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：US20190028910A1

公开(公告)日：2019-01-24

申请号：US15655781

申请日：2017-07-20

Applicant: Silver Spring Networks, Inc.

Inventor： Kamal Poorrezaei ,  Brandon Inberg

IPC: H04W24/08 ,  H04L27/152 ,  H04W48/16

Abstract: A battery powered node within a wireless mesh network maintains a mapping between temperature and oscillator drift and compensates for oscillator drift based on this mapping. When the mapping includes insufficient data points to map the current temperature to an oscillator drift value, the battery powered node requests calibration packets from an adjacent upstream node in the network. The adjacent node transmits two calibration packets with a transmit time delta and also indicates this time delta in the first calibration packet. The battery powered node receives the two calibration packets and measures the receive time delta. The battery powered node compares the transmit time delta to the receive time delta to determine oscillator drift compared to an oscillator in the adjacent node. The battery powered node then updates the mapping based on the current temperature and determined oscillator drift.