Patent application number | Description | Published |
20140059217 | METHOD FOR CONTENT CHANGE NOTIFICATION IN A CLOUD STORAGE SYSTEM, A CORRESPONDING CLOUD BROKER AND CLOUD AGENT - A method for notification of content changes across different applications that share same content in a cloud storage system comprises: registering at a cloud IO broker applications that require content change notification; informing a cloud IO agent about content for which applications registered with the cloud IO broker for content change notification; monitoring content changes in the cloud storage system and upon each change of a content item: sending a first content change notification from the cloud IO agent to each cloud IO broker that requested content change notification for that content item; identifying at the cloud IO broker applications registered for content change notification for that content item; and multicasting a second content change notification from the cloud IO broker to all applications registered for content change notification for that content item. | 02-27-2014 |
20140067990 | METHOD FOR ACCESSING A CONTENT ITEM IN A CLOUD STORAGE SYSTEM, AND A CORRESPONDING CLOUD BROKER, CLOUD CACHE AGENT AND CLIENT APPLICATION - In a cloud storage system, an editable version of each content item is stored in a cloud data store and one or more HTML versions of content items are stored in a cloud cache store. In order to access a content item, a client application sends a request to a cloud broker, specifying a user action that is either “view” or “edit”. In case the user action is “edit”, the cloud broker sends a request for retrieving the editable version of the content item from the cloud data store. In case the user action is “view”, the cloud broker sends a request for obtaining a URL to one of the HTML versions of the content item to a cloud cache agent. | 03-06-2014 |
20140165164 | Method to Obtain a Virtual Desktop Stored in a Cloud Storage System, a Corresponding Cloud Broker and Cloud Desktop Agent - A method to obtain a cloud-stored virtual desktop includes a set of user preferences, applications and shortcuts to files that a user desires to access. The method includes (A) transferring from a client device to a cloud broker a virtual desktop request comprising a user identification and a client device type identification; (B) passing the virtual desktop request to a cloud desktop agent responsible for maintenance of virtual desktops and virtual desktop metadata in the cloud storage system; (C) selecting by the cloud desktop agent a list of available virtual desktops for the user and the client device type based on a comparison with the virtual desktop metadata; (D) transferring the list of available virtual desktops to the cloud broker; and (E) forwarding the list of available virtual desktops from the cloud broker to the client device to enable the user to select a virtual desktop to be opened. | 06-12-2014 |
20150039733 | METHOD AND SYSTEM FOR TROUBLESHOOTING IN IN-HOUSE NETWORKS - A system for solving a technical problem in a network architecture with at least one service operator network and a plurality of in-house networks supported by the at least one service operator network, includes a computing device adapted to receive in-house network parameters and to determine, based on the received in-house network parameters, a coordination strategy involving the reconfiguration of a number of involved in-house networks being supported by a number of involved service operator servers. The computing device is adapted to inform the number of involved operator servers of the coordination strategy. A service operator server is adapted to reconfigure an in-house network according to the coordination strategy to solve the technical problem. | 02-05-2015 |
Patent application number | Description | Published |
20110112759 | TRANSIT ROUTING SYSTEM FOR PUBLIC TRANSPORTATION TRIP PLANNING - A public transit travel planning system and methodology that uses an extensive pre-processing approach of transit information prior to query time on order to determine optimal public transit routes for journeys. At query time, since the transit information has already been processed by the system, very little computation is needed in order to fulfill the query. The system then provides users with public transit directions in response to the queries for public transit journeys. | 05-12-2011 |
20130184994 | TRANSIT ROUTING SYSTEM FOR PUBLIC TRANSPORTATION TRIP PLANNING - A public transit travel planning system and methodology that uses an extensive pre-processing approach of transit information prior to query time on order to determine optimal public transit routes for journeys. At query time, since the transit information has already been processed by the system, very little computation is needed in order to fulfill the query. The system then provides users with public transit directions in response to the queries for public transit journeys. | 07-18-2013 |
20130197794 | TRANSIT ROUTING SYSTEM FOR PUBLIC TRANSPORTATION TRIP PLANNING - A public transit travel planning system and methodology that uses an extensive pre-processing approach of transit information prior to query time on order to determine optimal public transit routes for journeys. At query time, since the transit information has already been processed by the system, very little computation is needed in order to fulfill the query. The system then provides users with public transit directions in response to the queries for public transit journeys. | 08-01-2013 |
20140180570 | TRANSIT ROUTING SYSTEM FOR PUBLIC TRANSPORTATION TRIP PLANNING - A public transit travel planning system and methodology that uses an extensive pre-processing approach of transit information prior to query time on order to determine optimal public transit routes for journeys. At query time, since the transit information has already been processed by the system, very little computation is needed in order to fulfill the query. The system then provides users with public transit directions in response to the queries for public transit journeys. | 06-26-2014 |
Patent application number | Description | Published |
20090077793 | High Voltage Operating Rod Sensor and Method of Making the Same - Methods and system for making and using vacuum switching devices are disclosed. A vacuum switching device has an operating rod for actuating a movable electrical contact within the device. The operating rod may be a hollow epoxy glass tube with an electrical sensor disposed within it, and there may be an elastomeric polymer filling compound disposed within the tube and encasing the sensor. The operating rod may be attached to the movable electrical contact on one end by a steel end-fitting that has been press-fit into the tube and secured with at least one cross pin. In this way, a very secure electromechanical connection may be made between the operating rod and the rest of the vacuum switching device, and the sensor is protected from shock associated with the operation of the device. Moreover, the vacuum switching device is compact and easy to construct. | 03-26-2009 |
20100072355 | ARC FLASH PROTECTION WITH SELF-TEST - An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event. | 03-25-2010 |
20100254225 | FAULT TOLERANT TIME SYNCHRONIZATION - Systems and methods for distributing accurate time information to geographically separated communications devices are disclosed. Additionally, the desired systems and methods may adjust local time signals to compensate for measured signal drifts relative to more accurate time signals. Moreover, a system may determine a best available time signal based on a weighted average of available time signals or select a best available time signal based on weighted characteristics of various time signals. A system may be further configured to transmit time information embedded in an overhead portion of a SONET frame, including transmission of a standard or common time. | 10-07-2010 |
20110085272 | Systems and Methods for Generator Ground Fault Protection - A generator winding-to-ground fault detection system is disclosed that includes a signal injection source in electrical communication with a winding of an electric power generator via an injection transformer. The winding may be coupled to ground via a winding-to-ground path and the signal generation source may generate an injection signal capable of being injected to the winding using the injection transformer. The disclosed system may further include a protection module in communication with the signal injection source and the electric power generator configured to receive the injection signal and a signal relating to the current through the winding-to-ground path, and to determine the occurrence of a winding-to-ground fault condition based at least in part on the injection signal and the signal relating to the current through the winding-to-ground path. | 04-14-2011 |
Patent application number | Description | Published |
20120312977 | Arc Flash Protection System with Self-Test - An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event. | 12-13-2012 |
20130096854 | Fault Location Using Traveling Waves - Disclosed herein are various embodiments of systems and methods for calculating a fault location in electric power delivery system based on a traveling wave created by an electrical fault in the electric power delivery system. According to one embodiment, an intelligent electronic device may be configured to detect a transient traveling wave caused by an electrical fault. A first traveling wave value of the transient traveling wave may be determined and a corresponding first time associated with the first traveling wave may be determined. The IED may receive a second time associated with a second traveling wave value of the transient traveling wave detected by a remote IED. The distance to the remote IED may be known. An estimated fault location may be generated based on the time difference between the first time and the second time. Additional methods of calculating the fault location may also be employed. | 04-18-2013 |
20130193987 | DEVICE FOR MEASURING ELECTRICAL CURRENT AND METHOD OF MANUFACTURING THE SAME - Disclosed herein are embodiments of devices for measuring electrical current and related systems and methods for forming and using such devices. According to certain embodiments, devices according to the present disclosure may comprise Rogowski coils. Also disclosed are systems and methods for forming a current measuring device using a bobbin that may allow for the use of a continuous length of wire for all windings associated with the current measuring device. Automated manufacturing techniques may be utilized to facilitate the manufacture of devices for measuring electrical current and/or may reduce the cost of such devices. Various embodiments disclosed herein include the use of a bobbin that may be selectively configured between a linear configuration and a closed configuration. One or more current sensors disclosed herein may be utilized in connection with a motor management relay or other type of intelligent electronic device. | 08-01-2013 |
20140074414 | Fault Location Using Traveling Waves - Disclosed herein are various embodiments of systems and methods for calculating a fault location in electric power delivery system based on a traveling wave created by an electrical fault in the electric power delivery system. According to one embodiment, an intelligent electronic device may be configured to detect a transient traveling wave caused by an electrical fault. A first traveling wave value of the transient traveling wave may be determined and a corresponding first time associated with the first traveling wave may be determined. The IED may receive a second time associated with a second traveling wave value of the transient traveling wave detected by a remote IED. The distance to the remote IED may be known. An estimated fault location may be generated based on the time difference between the first time and the second time. Additional methods of calculating the fault location may also be employed. | 03-13-2014 |
Patent application number | Description | Published |
20150081234 | POWER LINE PARAMETER ADJUSTMENT AND FAULT LOCATION USING TRAVELING WAVES - Fault location using traveling waves in an electric power delivery system according to the embodiments herein uses line parameters that are adjusted using traveling wave reflections from known discontinuities in the electric power delivery system. The arrival times of a traveling wave and a reflection of the traveling wave from a known discontinuity may be used to adjust parameters of the electric power delivery system such as, for example, line length. The adjusted parameter can then be used to more accurately calculate the location of the fault using the traveling waves. | 03-19-2015 |
20150081235 | FAULT LOCATION USING TRAVELING WAVES BY CALCULATING TRAVELING WAVE ARRIVAL TIME - A location of a fault in an electric power delivery system may be detected using traveling waves instigated by the fault. The time of arrival of the traveling wave may be calculated using the peak of the traveling wave. To determine the time of arrival of the peak of the traveling wave, estimates may be made of the time of arrival, and a parabola may be fit to filtered measurements before and after the estimated peak. The maximum of the parabola may be the time of arrival of the traveling wave. Dispersion of the traveling wave may also be corrected using an initial location of the fault and a known rate of dispersion of the electric power delivery system. Time stamps may be corrected using the calculated dispersion of the traveling wave. | 03-19-2015 |
20150081236 | TRAVELING WAVE VALIDATION USING ESTIMATED FAULT LOCATION - Electric power delivery system fault location systems and methods as disclosed herein include validation of the received traveling wave fault measurements. Validation may include estimating a location of the fault using an impedance-based fault location calculation. Time windows of expected arrival times of traveling waves based on the estimated fault location and known parameters of the line may then be established. Arrival times of traveling waves may then be compared against the time windows. If the traveling waves arrive within a time window, then the traveling waves may be used to calculate the location of the fault. | 03-19-2015 |
20150244160 | ARC FLASH PROTECTION SYSTEM WITH SELF-TEST - An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event. | 08-27-2015 |
20160077149 | FAULT DETECTION IN ELECTRIC POWER DELIVERY SYSTEMS USING UNDERREACH, DIRECTIONAL, AND TRAVELING WAVE ELEMENTS - The present disclosure pertains to systems and methods for detecting faults in an electric power delivery system. In one embodiment, a system may include a data acquisition subsystem configured to receive a plurality of representations of electrical conditions. The system may also include a traveling wave differential subsystem configured to determine an operating quantity based on the plurality of representations of electrical conditions. The traveling wave differential subsystem may also determine a restraint quantity based on the plurality of representations of electrical conditions. The traveling wave differential subsystem may detect a traveling wave generated by the fault based on the plurality of representations. A fault detector subsystem may be configured to declare a fault based on a comparison of the operating quantity and the restraint quantity. A protective action subsystem may implement a protective action based on the declaration of the fault. | 03-17-2016 |
20160077150 | FAULT DETECTION IN ELECTRIC POWER DELIVERY SYSTEMS USING UNDERREACH, DIRECTIONAL, AND TRAVELING WAVE ELEMENTS - The present disclosure pertains to systems and methods for detecting faults in an electric power delivery system. In one embodiment, system may include a data acquisition subsystem configured to receive a plurality of representations of electrical conditions. The system may also include an incremental quantities subsystem configured to calculate an incremental current quantity and an incremental voltage quantity based on the plurality of representations. A fault detection subsystem may be configured to determine a fault type based on the incremental current quantity and the incremental voltage quantity, to select an applicable loop quantity, and to declare a fault based on the applicable loop quantity, the incremental voltage quantity, and the incremental current quantity. A protective action subsystem may implement a protective action based on the declaration of the fault. | 03-17-2016 |