A system for predicting a triggered lightning strike upon an aircraft, which includes an antenna for collecting an RF signal. The system includes one or more processors and a memory coupled to the processor, the memory storing data into a database and program code that, when executed by the one or more processors, causes the system to receive as input a filtered, amplified form of the RF signal collected by the antenna and a non-filtered, amplified form of the RF signal collected by the antenna. The system determines a difference between the filtered, amplified form of the RF signal and the non-filtered and amplified form of the RF signal. The difference is a static signal. The system determines the triggered lightning strike upon the aircraft based on the static signal.

A system for predicting a triggered lightning strike upon an aircraft, which includes an antenna for collecting an RF signal. The system includes one or more processors and a memory coupled to the processor, the memory storing data into a database and program code that, when executed by the one or more processors, causes the system to receive as input a filtered, amplified form of the RF signal collected by the antenna and a non-filtered, amplified form of the RF signal collected by the antenna. The system determines a difference between the filtered, amplified form of the RF signal and the non-filtered and amplified form of the RF signal. The difference is a static signal. The system determines the triggered lightning strike upon the aircraft based on the static signal.

A weather reminding apparatus is provided, including: an application program, a main body, a communication module, a processing module, and a display module. The application program is installed on a mobile communication device, the main body is mounted on an umbrella grip, the communication module, processing module, and display module are disposed at the main body. The mobile communication device receives weather forecast data for one to several hours from a cloud server for the area where the mobile communication device is located, and the application generates a weather reminder command based on the weather forecast data. The communication module can wirelessly connect the mobile communication device and receive the weather reminder command. The processing module controls the display module to display a weather reminder signal in response to the weather reminder command.

A weather reminding apparatus is provided, including: an application program, a main body, a communication module, a processing module, and a display module. The application program is installed on a mobile communication device, the main body is mounted on an umbrella grip, the communication module, processing module, and display module are disposed at the main body. The mobile communication device receives weather forecast data for one to several hours from a cloud server for the area where the mobile communication device is located, and the application generates a weather reminder command based on the weather forecast data. The communication module can wirelessly connect the mobile communication device and receive the weather reminder command. The processing module controls the display module to display a weather reminder signal in response to the weather reminder command.

Aspects of the technology relate to an environmental sensor system that uses different types of detector units as part of an onboard lightning detection and evaluation system for a high altitude platform (HAP) operating in the stratosphere. These sensor suites may be employed with balloons and other high altitude platforms during operation in the stratosphere. Onboard data processing and analysis may be done either in real time or on stored data sets. The processing system can use the gathered sensor information to mitigate issues related to lightning-related transients. The information can also be used in route planning and real-time navigation of HAPs when hazardous conditions are detected. It can also be employed in a back-end control system for long-term route planning and fleet management.

Aspects of the technology relate to an environmental sensor system that uses different types of detector units as part of an onboard lightning detection and evaluation system for a high altitude platform (HAP) operating in the stratosphere. These sensor suites may be employed with balloons and other high altitude platforms during operation in the stratosphere. Onboard data processing and analysis may be done either in real time or on stored data sets. The processing system can use the gathered sensor information to mitigate issues related to lightning-related transients. The information can also be used in route planning and real-time navigation of HAPs when hazardous conditions are detected. It can also be employed in a back-end control system for long-term route planning and fleet management.

Systems and methods are disclosed to detect cloud-to-ground (CG) strokes that include and/or are followed by continuing current (CC). For example, earth-based lightning data may be generated for one or more lightning pulses detected in an environmental space using multiple earth-based lightning detection sensors. Space-based lightning data may be received for one or more optical signals detected in the environmental space using one or more space-based lightning detection sensors. It may be determined from the earth-based and space-based lightning data whether a lightning pulse is a CG stroke that includes or is followed by CC. Charge transfer of a CG stroke with CC may be obtained from measurements of electromagnetic fields by an array of electromagnetic field sensors to generate training data. A machine learning model may be trained to relate space-based and/or earth-based lightning data to charge transfer where there is no proximate array of electromagnetic field sensors.

Systems and methods are disclosed to detect cloud-to-ground (CG) strokes that include and/or are followed by continuing current (CC). For example, earth-based lightning data may be generated for one or more lightning pulses detected in an environmental space using multiple earth-based lightning detection sensors. Space-based lightning data may be received for one or more optical signals detected in the environmental space using one or more space-based lightning detection sensors. It may be determined from the earth-based and space-based lightning data whether a lightning pulse is a CG stroke that includes or is followed by CC. Charge transfer of a CG stroke with CC may be obtained from measurements of electromagnetic fields by an array of electromagnetic field sensors to generate training data. A machine learning model may be trained to relate space-based and/or earth-based lightning data to charge transfer where there is no proximate array of electromagnetic field sensors.

A lightning strike alarm system using a Bipolar Conventional Air Terminal comprises a sensor electrically connected to a rod element electrified by a ground charge and an electrification plate-cone or an electrification plate-tube electrified by a thunderstorm cloud, and configured to measure electric energy induced in the electrification plate-cone or the electrification plate-tube; and a controller configured to determine that the thunderstorm cloud has approached when the electrical energy is greater than a reference energy; and an alarm device configured to output an alarm signal, based on a result of determining that the thunderstorm cloud has approached, wherein the sensor comprises: a luminescence unit, including a voltage stabilizer preventing induction of a high voltage due to the thunderstorm cloud, configured to emit light by the electric energy; and a light receiver configured to receive the light, convert the light to electric energy, and transfer the electric energy to the controller.

A lightning strike alarm system using a Bipolar Conventional Air Terminal comprises a sensor electrically connected to a rod element electrified by a ground charge and an electrification plate-cone or an electrification plate-tube electrified by a thunderstorm cloud, and configured to measure electric energy induced in the electrification plate-cone or the electrification plate-tube; and a controller configured to determine that the thunderstorm cloud has approached when the electrical energy is greater than a reference energy; and an alarm device configured to output an alarm signal, based on a result of determining that the thunderstorm cloud has approached, wherein the sensor comprises: a luminescence unit, including a voltage stabilizer preventing induction of a high voltage due to the thunderstorm cloud, configured to emit light by the electric energy; and a light receiver configured to receive the light, convert the light to electric energy, and transfer the electric energy to the controller.