165results about "Atmospheric potential difference measurement" patented technology

A weather station for providing weather information to a user, especially weather information related to lightning and severe thunderstorm activity. In accordance with the present invention, the weather station includes one or more antennas for receiving GPS transmissions, weather radio transmissions, and a separate radio band, such as the AM radio band for use in detecting lightning strikes. The GPS signal is used to determine the position of the user. A lightning detector coupled to the antenna for receiving the AM (or other band) signal calculates the proximity of any detected lightning strikes. The national weather radio band antenna receives information from NOAA and similar organizations and presents it to the user in the normal fashion. In accordance with the present invention, the weather station may take storm data from NOAA and compare it to lightning proximity data that it has already obtained at a particular location and present to the user an indication of the relative location of the severe thunderstorm activity and its direction of movement.

A system and methods for predicting and assessing risk before an event occurs. More particularly, the present invention predicts and assesses risk such as the occurrence of an earthquake prior to the event by collecting and analyzing changes in Total Electron Content (“TEC”) in the ionosphere.

A system and method for detecting turbulence includes several mobile platforms, a mobile platform velocity sensor, and several electromagnetic energy transmitters and receivers. The receivers receive the energy transmitted by the transmitter(s) after it has traveled along a path subject to the turbulence. The receivers detect alterations of the energy caused by the turbulence and filter the alterations for effects of the mobile platform velocity (on which either a transmitter or receiver is located). Additionally, the system may create a three-dimensional model of the. In another preferred embodiment, the present invention provides a method of detecting turbulence using a mobile platform. The method includes receiving electromagnetic energy that has traveled along a path subject to the turbulence and determining the alteration to the energy caused by the turbulence. The alterations are filtered of the effects of the velocity of the mobile platform on which the receivers are preferably located.

A portable weather detection and alarm device includes an electromagnetic signal receiver that receives digital time signals and atmospheric phenomenon signals. A processor connected to the electromagnetic signal receiver processes the atmospheric phenomenon signals to determine when an atmospheric event has occurred. An alarm connected to the processor that indicates the occurrence of an atmospheric event.

A severe weather monitoring system including a local event detector wherein the local event detector includes at least one electric field monitor and at least one electromagnetic sensor. A local grid computer receives local data from the electric field monitor and the electromagnetic sensor, the local grid computer is connected to the Internet to periodically send information about local environmental conditions to local and remote communications devices, such as computers and cell phones. The local grid computer includes software to analyze the local data and to post the local data to a computer network and wherein the local grid computer can trigger a local on site alert in event of the sensed data indicating a dangerous condition.

A portable weather detection and alarm device includes an electromagnetic signal receiver that receives digital time signals and atmospheric phenomenon signals. A processor connected to the electromagnetic signal receiver processes the atmospheric phenomenon signals to determine when an atmospheric event has occurred. An alarm connected to the processor that indicates the occurrence of an atmospheric event.

A lightning detector for lightning detection and a lightning detection method, wherein the mobile lightning detector is provided with an antenna, an amplifier front-end, an A / D converter and a digital signal processor, and wherein the lightning detector is a mobile RF device provided with an audio codec whereby the preamplifier of the codec is used for amplification of the detected lightning signal, the A / D converter of the codec is used for the A / D conversion of the amplified lightning signal, and whereby the digital audio processing unit of the codec is used for the signal processing of the lightning detection.

A mobile radio-frequency enabled device that provides a reliable and inexpensive lightning alerting of a user. The device comprises an electromagnetic interferences detection component detecting electromagnetic interferences in radio-frequency signals received by the mobile radio-frequency enabled device for a communication link. The device further comprises a processing component to determine whether a lightning stroke can be assumed to have occurred in the vicinity of the device due to an electromagnetic interference detected by the electromagnetic interferences detection component, and to cause a notification of a user about an assumed lightning stroke via a user interface. The invention relates equally to a system which comprises such a device and a network element of a communication network, to a corresponding method and to a corresponding software program product.

A system for lightning detection is provided. The lightning detection system includes a conductor configured to receive a lightning strike and transmit a lightning induced current. The system also includes a fiber optic current sensor configured to detect multiple lightning parameters from the lightning induced current and to modulate a beam of radiation in response thereto. The system further includes an electro-optic module configured to receive and convert the beam of radiation from the fiber optic current sensor to an electrical signal.

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.

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.

A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector uses at least two separate channels or frequency bands for lightning detection, and wherein the lightning detector is a mobile RF device provided with radio interfaces for at least two communication channels or frequency bands, whereby at least one of which is normally a telecom channel / frequency range and wherein these channels / ranges are used in lightning detection.

The invention relates to an all-in-view lightning event observation system and an all-in-view lightning event observation method. The system may comprise a shooting device, a tank body, a temperature control device, a light shading device, a control module, a power module, a sensor, a data acquisition device, a global positioning system (GPS) antenna, a GPS time service module and a processing unit, wherein the shooting device can shoot an all-in-view digital image and directly transmit the all-in-view digital image to the processing unit; and the processing unit continuously acquire corona current by the data acquisition device, judges whether an observed range has thunderstorms or not, starts the light shading device to enter a lightning channel image shooting mode if the observed rangehas the thunderstorms, and stops the light shading device after the observation is finished to protect the shooting device when the observed range does not have the thunderstorms. The system simultaneously records the GPS time of a lightning event and the waveform information of corona current change produced by the lightning event, judges a lightning type and the polarity of cloud-to-ground lightning, can realize the automatic light shading of the shooting device and automatic control over the working environment temperature of the shooting device in the thunderstorms, and also can work in afield environment stably and reliably for long.