| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 702004000 | Lightning | 17 |
| 20080262732 | METHOD OF DETECTING, LOCATING, AND CLASSIFYING LIGHTNING - There is discloses a new method for identifying an electromagnetic signal having a known waveform. The method includes using a lightning matched filter receiver having a bank of filters matched to nominal but arbitrary lightning waveforms for detecting lightning. The use of a lightning matched filter receiver facilitates detection of lightning discharges below the noise level. Positioning three or more monitoring stations at different spaced apart geographic locations where each monitoring station has a lightning matched filter receiver where the filters are matched to nominal but arbitrary lightning waveforms can be used to detect and determine the location of a lightning discharge. | 10-23-2008 |
| 20090187344 | System, Method, and Computer Program Product for Analyzing Power Grid Data - A system, device and method for analyzing power grid data is provided. In one embodiment, the system includes a data collection module comprising a plurality of database adapters configured to retrieve non-operational utility data, a data storage module in communication with said data collection module and comprising a database for storing the non-operational utility data, and an analysis and reporting module in communication with said data storage module and configured to process the non-operational data and to provide a plurality of reports and a plurality of alarms. The analysis and reporting module may comprise an object library comprising a plurality of objects and wherein each object is configured to perform a specific analysis of utility data, an analysis rules module linking one or more objects of the object library and defining an analysis to be performed, an analysis engine configured to execute the analysis rules module, and a report generator configured to produce a report based on an output of the analysis rule module. | 07-23-2009 |
| 20090240434 | Lightning detection - This disclosure relates to a method, a computer program product, a device, and a system for detecting direction information of at least one pulse of at least one received signal, downconverting the at least one received signal, and performing lightning detection based on the at least one detected pulse direction information and the at least one downconverted signal. | 09-24-2009 |
| 20090281730 | Long-range lightning detection and characterization system and method - A long-range lightning detection and characterization system and method. Electromagnetic radiation produced by a lightning strike is sensed at a sensing location and a measured signal representative of the strike is produced that defines an amplitude versus time. A set of reference data containing waveforms comparable to the measured signal is established. The set of reference data defines a set of reference amplitudes versus time, representative of one or more predetermined reference lightning strikes at various predetermined distances, where for each of the distances, the reference lightning strikes have associated therewith various predetermined day/night percentages. The measured signal is compared with the reference data, the comparison including finding a correlation between the measured signal and a correlating waveform in the reference data. At least one of a propagation distance, a time-of-arrival, a polarity, and an amplitude of the measured signal is inferred by reference to the correlating waveform. | 11-12-2009 |
| 20100023267 | Method and system for determining cloud-to-ground lightning information - A real-time, multi-sensor local-area lightning detection network system. The system uses waveform indicative of electrostatic field changes with respect to time is generated at each of N locations due to a cloud-to-ground lightning strike occurring in the vicinity of the N locations. Each waveform is integrated to generate a corresponding electric field associated with a corresponding one of the locations. A mathematical relationship is used to determine a ground surface location of the lightning strike, height of the lightning strike, and charge per unit length of the lightning strike using each electric field generated during integration of the waveforms. | 01-28-2010 |
| 20100268467 | Lightning detection - A method, an apparatus, and a computer program is provided. The method includes: quantizing a received time-varying radio frequency signal to produce a series of digital values; maintaining a plurality of data groups, each data group including a cumulative parameter and each data group being defined by a digital value range, wherein maintaining the plurality of data groups includes updating a cumulative parameter for a data group, from the plurality of data groups, when a digital value, from the series of digital values, is within the digital value range for that data group; and processing at least some of the cumulative parameters of the data groups to determine whether the received time-varying radio frequency signal originated from lightning. | 10-21-2010 |
| 20110040483 | Method and Apparatus for Detecting Lightning Activity - Described are methods and apparatuses, including computer program products, for detecting lightning activity. Waveform data indicative of lightning activity is received by a waveform sensor from one or more signal converters. The waveform data comprises a group of electromagnetic waveforms. The waveform data is filtered by a processor to remove noise frequencies. One or more uncompressed portions of the waveform data are transmitted to a processing server. Digital filter data based on the one or more uncompressed portions of waveform data are received from the processing server. One or more frequencies are removed from the waveform data based on the digital filter data. The waveform data is compressed. The compressing includes selecting one or more points on a waveform, wherein the one or more points are above a predetermined threshold. The compressing includes determining an inflection of the selected points based on a predefined algorithm. | 02-17-2011 |
| 20110077866 | DISTANCE RELAY USING REAL TIME LIGHTNING DATA - A distance relay apparatus, a distance relay processing system and a method for processing a distance relay are disclosed. In accordance with an embodiment of the present invention, the distance relay processing system, which controls a distance relay, includes a lightning managing apparatus, which generates comprehensive lightning information by using lightning detection information and in which the lightning detection information is provided by a lightning detector, and a distance relay apparatus, which generates fault occurrence information by determining a fault location of a power transmission line and generates fault analysis information by using the fault occurrence information and the comprehensive lightning information. | 03-31-2011 |
| 20110118982 | System and Method for Detecting Lightning Strikes Likely To Affect A Condition of A Structure - A lightning detection system and method for detecting a lightning strike are provided. The system includes a lightning detector in a structure susceptible to a lightning strike. The lightning detector includes a data logger configured to log data indicative of a time of occurrence of the lightning strike. The system further includes memory to store data collected from a wide-area lightning detection network. The stored data includes at least one characteristic of the lightning strike. A processor may be configured to process data from the data logger relative to data collected from the wide-area lightning detection network to determine correlated data indicative of a lightning strike affecting the structure. In the event correlated data is determined, the processor may be configured to assign the characteristic of the lightning strike to the structure. | 05-19-2011 |
| 20110246074 | LIGHTNING STRIKE SIMULATION APPARATUS, METHOD THEREOF, AND PROGRAM - This invention improves accuracy of lightning strike simulation. There is provided a lightning strike simulation apparatus including a storage device for storing lightning strike data, a setting unit for setting a simulation target and the like in a simulation space, a downward leader advancing unit for advancing a downward leader from a lightning strike start position set by the setting unit, an upward leader advancing unit for advancing upward leaders from lightning strike-receiving candidate points set in the simulation space when a distance between a leading edge of the downward leader and a reference point is within a first threshold value, and a lightning strike point determination unit for, when a distance between a leading edge of the downward leader and a leading edge of any one of the upward leaders is within a second threshold value, determining that the lightning strike-receiving candidate point corresponding to the any one of the upward leaders is a lightning strike point. | 10-06-2011 |
| 20130054144 | Distribution Feeder Outage Reduction - Systems and methods for distributed feeder outage reduction are usable to reduce power outages by tracking weather conditions and/or receiving weather condition information. Such systems and methods can be used to control protective relays and/or recloser breakers of utility systems to increase relay trip levels during storm conditions. Additionally, normal operating settings may be implemented when weather activity is not predicted to impact such components. | 02-28-2013 |
| 20130345982 | Using Lightning Data to Generate Proxy Reflectivity Data - Methods, systems, and computer program products are described herein for generating proxy reflectivity data associated with lightning activity. A computing device receives data associated with lightning activity for one or more geographical areas. The computing device determines the logarithmic scale of the combined in-cloud and cloud-to-ground flash rate (dBR) for one or more grids of lightning activity based on the received data. The computing device generates proxy reflectivity data based on the dBR of the grids. | 12-26-2013 |
| 20140088873 | Networked Sensor Devices And Systems - A device or system of devices that integrates sensors with wired or wireless communication technologies is presented. More particularly, devices and systems for lightning detection and the dissemination of lightning data over wired or wireless networks are described. The device is a communication jack that houses a communication port, a sensor and a sensor data server. The server is coupled with both the port and the sensor and is configured to obtain sensor data from the sensor and provide access to the sensor data via the communication port. The system is a plurality of such communication jacks distributed over a geographic range. | 03-27-2014 |
| 20140107926 | DISTANCE RELAY USING REAL TIME LIGHTNING DATA - A distance relay apparatus, a distance relay processing system and a method for processing a distance relay are disclosed. In accordance with an embodiment of the present invention, the distance relay processing system, which controls a distance relay, includes a lightning managing apparatus, which generates comprehensive lightning information by using lightning detection information and in which the lightning detection information is provided by a lightning detector, and a distance relay apparatus, which generates fault occurrence information by determining a fault location of a power transmission line and generates fault analysis information by using the fault occurrence information and the comprehensive lightning information. | 04-17-2014 |
| 20150073710 | METHOD FOR LIGHTNING FORECASTING AND ALERT SYSTEM - A method and system for determining and displaying lightning potential information is provided. The method includes receiving a radar data and temperature data for a grid location. If the radar data is above a radar threshold and the temperature data is below a temperature threshold a predictor field is computed. One or more predictor fields may be used to determine a lightning potential. Fuzzy logic may be used to combine predictor fields into a lightning potential. A grid of lightning potential values may be used to determine the lightning potential at a target location, or to indicate the lightning potential in a region outside an inner outlook region including the target location. A display may include an icon with an inner and outer portion displaying lightning potential in an inner and outer outlook region. A display may further include future lightning potential information. | 03-12-2015 |
| 20150134252 | PREDICTING THE POTENTIAL FOR SEVERE WEATHER - Methods and apparatuses, including computer program products, are described for predicting the potential for severe weather. A computing device receives data associated with lightning activity, where the data includes lightning flash data. The computing device identifies cells of lighting activity based upon the lightning flash data and determines a movement speed, a movement direction, and a lightning rate of the cells of lightning activity based on the received data. The computing device compares the determined lightning rate to a threshold lightning rate, where the threshold rate is set based upon atmospheric conditions in a location of the cells of lightning activity. The computing device determines one or more geographical areas at risk based on the location, the movement speed, and the movement direction of the cells of lightning activity, and issues an alert to remote devices when the lightning rate exceeds a value of the threshold lightning rate. | 05-14-2015 |
| 20150293262 | METHOD AND APPARATUS FOR LIGHTNING FORECAST - The present invention proposes a lightning forecast method, comprising: identifying a Targeted Weather of SDA carrier (TWLC) based on radar reflectivity data; forecasting a future TWLC state based on the identified TWLC; building or updating an SDA model based on SDA observation data and detected TWLC state-related data; and calculating the probability of producing SDA in the forecasted future TWLC according to the SDA model. | 10-15-2015 |
