Lightning monitoring and early warning method and system

Abstract

The invention relates to a lightning monitoring and early warning method and system. The method comprises the steps of S1, detecting atmosphere average electric fields, optical radiation signals, electric field changing signals, magnetic field changing signals and GPS satellite signals of an area to be monitored and conducting signal conditioning and conversion, S2, judging whether the electric field changing amount meets preset triggering conditions or not according to the electric field changing signals, conducting signal collection and storage and executing the step S3 if the electric field changing amount meets the preset triggering conditions, and refreshing and awaiting if the electric field changing amount does not meet the preset triggering conditions, S3, conducting waveform characteristic extraction on the collected optical radiation signals, the collected electric field changing signals and the collected magnetic field changing signals, conducting cloud-to-ground lightning identification and location according to extracted characteristic parameters, and meanwhile storing and displaying the position of lightning in a geographic information system, the lightning time and waveforms of the optical radiation signals, the electric field changing signals and the magnetic field changing signals in the lightning process, and S4, generating early warning results according to cloud-to-ground lightning identification and location results and atmosphere average electric field amplitudes, and giving an warning signal according to the early warning results.

Description

technical field [0001] The invention relates to the technical field of meteorological disaster early warning, in particular to a lightning monitoring and early warning method and system. Background technique [0002] Lightning disaster is one of the most serious natural disasters in my country. Due to its characteristics of high current and strong electromagnetic radiation, it often causes forest fires, oil depot explosions, power supply interruptions, communication failures, equipment damage and other accidents, and it is easy to cause casualties. According to conservative estimates, thousands of casualties are caused by lightning disasters in my country every year, and direct economic losses exceed hundreds of millions of yuan. The resulting indirect economic losses and impacts are even more difficult to estimate. Lightning disasters have affected all walks of life and every aspect of life. [0003] In order to effectively prevent the occurrence of lightning disasters and ...

AI Technical Summary

Problems solved by technology

However, due to different topography and environmental conditions, the conditions of thunderstorm discharge to the ground are also different, and the average electric field value of the atmosphere may also change due to changes in the surrounding environment (for example: objects with static electricity passing by, etc.); therefore, This kind of lightning early warning system that relies on a single atmospheric average electric field value to determine the possibility of lightning strikes has the disadvantages of low accuracy and prone to false alarms; in addition, due to the limitation of the detection distance of the atmospheric average electric field instrument, there is also a short early warning time lack of

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