Source: http://www.google.com/patents/US20090022078?ie=ISO-8859-1
Timestamp: 2015-03-27 07:08:23
Document Index: 278579157

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US20090022078 - Systems and methods for controlling sleep states of network nodes - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe present disclosure generally relates to systems and methods for controlling nodes in a communication network, such as a wireless sensor network. In one exemplary embodiment, a node, referred to herein as a �coordinator node,� controls the operation of various nodes, referred to herein as �sensor...http://www.google.com/patents/US20090022078?utm_source=gb-gplus-sharePatent US20090022078 - Systems and methods for controlling sleep states of network nodesAdvanced Patent SearchPublication numberUS20090022078 A1Publication typeApplicationApplication numberUS 12/114,504Publication dateJan 22, 2009Filing dateMay 2, 2008Priority dateMay 2, 2007Also published asCA2685868A1, CN101682528A, CN101682528B, EP2143237A2, EP2143237A4, US7970871, US8009437, US8081590, US8204971, US8868703, US20080274630, US20080307076, US20110231533, US20120294237, WO2008137766A2, WO2008137766A3Publication number114504, 12114504, US 2009/0022078 A1, US 2009/022078 A1, US 20090022078 A1, US 20090022078A1, US 2009022078 A1, US 2009022078A1, US-A1-20090022078, US-A1-2009022078, US2009/0022078A1, US2009/022078A1, US20090022078 A1, US20090022078A1, US2009022078 A1, US2009022078A1InventorsWade C. Patterson, Rick MartindaleOriginal AssigneePatterson Wade C, Rick MartindaleExport CitationBiBTeX, EndNote, RefManReferenced by (11), Classifications (5), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetSystems and methods for controlling sleep states of network nodes
US 20090022078 A1Abstract
The present disclosure generally relates to systems and methods for controlling nodes in a communication network, such as a wireless sensor network. In one exemplary embodiment, a node, referred to herein as a �coordinator node,� controls the operation of various nodes, referred to herein as �sensor nodes,� that are configured to monitor various parameters. The coordinator node from time-to-time broadcasts a beacon to the sensor nodes. The beacon can include various information that is used by the sensor nodes for control. In one exemplary embodiment, the beacon includes node-specific information that informs at least some nodes that they are to transition to a sleep state for a certain period of time. Such nodes, based on the beacon, transition to a sleep state, thereby conserving electrical power.
a coordinator node configured to broadcast a beacon; and a plurality of sensor nodes including at least a first sensor node and a second sensor node, each of the sensor nodes having a sensor for reading a parameter and configured to transmit data based on the sensor over the network, the first sensor node configured to reply to the beacon, wherein a component of the second sensor node is configured to transition to a sleep state based on whether an identifier of the second sensor node is in the beacon. 2. The network of claim 1, wherein the coordinator node is configured make a determination whether the second sensor node is to receive a message during an expected activity relating to the sensor nodes, and wherein the coordinator node is configured to insert the identifier of the second sensor node into the beacon based on the determination.
broadcasting a beacon; receiving the beacon at a plurality of sensor nodes including at least a first sensor node and a second sensor node, each of the sensor nodes having a sensor; determining whether the beacon has an identifier of the second. sensor node; replying, via the first sensor node, to the beacon; and transitioning a component of the second sensor node to a sleep state based on the determining step. 10. The method of claim 9, further comprising the steps of:
determining whether the second sensor node is to receive a message during an expected activity relating to the sensor nodes; and inserting the identifier of the second sensor node into the beacon based on the determining whether the second sensor node is to receive the message step. 11. The method of claim 9, further comprising the step of discovering a presence of the first sensor node based on the replying step.
inserting the identifier into the beacon; associating a parameter with the inserted identifier, the parameter indicative of a time period; and controlling a duration of the sleep state based on the parameter. 14. The method of claim 9, wherein the beacon has a locator value, and wherein the replying step is based on the locator value.
broadcasting a beacon including identifiers of sensor nodes that are to receive messages within a specified time period; and transitioning a component of a first sensor node to a sleep state in response to a determination that an identifier of the first sensor node is not included in the beacon. 17. The method of claim 16, further comprising the step of controlling a duration of the sleep state based on an expected time of transmission of a second beacon such that the component is awake at the time of the transmission.
This application claims priority to U.S. Provisional Patent Application No. 60/915,536, entitled �Wireless Communication Modules,� and filed on May 2, 2007, which is incorporated herein by reference. This application also claims priority to U.S. Provisional Patent Application No. 60/915,552, entitled �Nodes for Wireless Sensor Networks,� and filed on May 2, 2007, which is incorporated herein by reference. This application claims priority to U.S. Provisional Patent Application No. 60/915,571, entitled �Sensor Networks,� and filed on May 2, 2007, which is incorporated herein by reference. This application claims priority to U.S. Provisional Patent Application No. 60/937,031, entitled �Sensor Networks,� and filed on Jun. 25, 2007, which is incorporated herein by reference. This application claims priority to U.S. Provisional Patent Application No. 60/953,630, entitled �Sensor Networks,� and filed on Aug. 2, 2007, which is incorporated herein by reference. This application claims priority to U.S. Provisional Application No. 60/915,458, entitled �Protocols for Wireless Communication,� and filed on May 2, 2007, which is incorporated herein by reference.
Wireless sensor networks are used in a variety of applications. For example, nodes of a wireless sensor network may be positioned at various locations of a manufacturing plant to sense, report, and/or control various conditions around the plant, such as conditions relating to machinery operation. Various nodes, referred to as a �sensor nodes,� have at least one sensor for detecting an event, such as an operational state of equipment, and information about the sensed events is typically communicated throughout the network. Logic within the network analyzes the sensor data and controls various equipment and/or nodes based on the data. For example, a sensor may detect an overheating condition for equipment being monitored, and the logic may provide a signal for shutting down operation of the equipment in response to the overheating condition. Wireless sensor networks may be used in a variety of other applications and for performing various other functions.
Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8185165 *Jun 1, 2009May 22, 2012Hewlett-Packard Development Company, L.P.Method and apparatus for adaptive power saving in a mobile computing deviceUS8547890 *Dec 3, 2010Oct 1, 2013Electronics And Telecommunications Research InstituteSystem and method for power saving for in-body and on-body communicationUS8665784 *Sep 28, 2009Mar 4, 2014Stmicroelectronics, Inc.Web based smart sensor network tracking and monitoring systemUS8909165Aug 24, 2009Dec 9, 2014Qualcomm IncorporatedIsolation techniques for multiple co-located radio modulesUS20100080175 *Sep 28, 2009Apr 1, 2010Stmicroelectronics, Inc.Web based smart sensor network tracking and monitoring systemUS20100304794 *Jun 1, 2009Dec 2, 2010Palm, Inc.Method and apparatus for adaptive power saving in a mobile computing deviceUS20110134820 *Dec 3, 2010Jun 9, 2011Electronics And Telecommunications Research InstituteSystem and method for power saving for in-body and on-body communicationUS20110188420 *Jan 29, 2010Aug 4, 2011Digi International Inc.I/o driven node commissioning in a sleeping mesh networkUS20120236950 *Feb 10, 2012Sep 20, 2012Kabushiki Kaisha ToshibaInformation distribution system, information distribution apparatus, information communication terminal, and information distribution methodUS20130058318 *Feb 22, 2011Mar 7, 2013Ashutosh BhatiaMethod and apparatus for device synchronization and power conservation in a wireless communication systemUS20140126453 *Nov 7, 2012May 8, 2014Qualcomm IncorporatedMulticast over wireless network with the assistance of power-efficient peer group discovery* Cited by examinerClassifications U.S. Classification370/311International ClassificationG08C17/00Cooperative ClassificationH04L67/12, G01D21/00European ClassificationG01D21/00Legal EventsDateCodeEventDescriptionJul 18, 2012ASAssignmentFree format text: RELEASE BY SECURED PARTY;ASSIGNOR:SQUARE 1 BANK;REEL/FRAME:028574/0637Owner name: SYNAPSE WIRELESS, INC., ALABAMAEffective date: 20120718Nov 9, 2009ASAssignmentOwner name: SQUARE 1 BANK, NORTH CAROLINAFree format text: SECURITY AGREEMENT;ASSIGNOR:SYNAPSE WIRELESS, INC.;REEL/FRAME:023493/0178Effective date: 20091106Owner name: SQUARE 1 BANK,NORTH CAROLINAFree format text: SECURITY AGREEMENT;ASSIGNOR:SYNAPSE WIRELESS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100325;REEL/FRAME:23493/178Free format text: SECURITY AGREEMENT;ASSIGNOR:SYNAPSE WIRELESS, INC.;US-ASSIGNMENT DATABASE UPDATED:20100422;REEL/FRAME:23493/178Aug 18, 2008ASAssignmentOwner name: SYNAPSE WIRELESS, INC., ALABAMAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PATTERSON, WADE C.;MARTINDALE, RICK A.;REEL/FRAME:021403/0793;SIGNING DATES FROM 20080805 TO 20080806Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PATTERSON, WADE C.;MARTINDALE, RICK A.;SIGNING DATES FROM 20080805 TO 20080806;REEL/FRAME:021403/0793RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services