Combined lightning monitoring and forecasting system

Abstract

The invention discloses a combined lightning monitoring and forecasting system. A lightning alarming instrument is arranged at the right upper end of an L bracket and toward the sky; an atmospheric electric field instrument is arranged at the tail end of the L bracket and toward the ground; transmission terminals of the two instruments are connected with a signal acquisition and processing device which has the following structure that: the atmospheric electric field instrument comprises two paths of output terminals, one path is that an electric field signal of the electric field instrument is sequentially connected in series with a band-pass filter, a phase regulating circuit, an electric field signal amplifier and an isolating circuit, while the other path is that a synchronous signal of the electric field instrument is connected in series with a synchronous signal amplifier, an integrator, an adjustable comparator and a phase inverter; both the two paths of the output terminals are connected with a synchronous detector which is connected with a low-pass filter, a regulating circuit, an A / D converter and a display; the regulating circuit is connected with a window comparator, a low-frequency signal generator, an audio signal generator and acoustic and optical alarm equipment; a signal processor of a global positioning system (GPS) is connected with a GPS time display and a central processing unit respectively; and the lightning alarming instrument and the A / D converter are connected with the central processing unit respectively.

Description

technical field [0001] The invention relates to the field of lightning monitoring and early warning, in particular to a combined lightning monitoring and forecasting system. Background technique [0002] With the frequency and severity of lightning disasters, more and more attention has been paid to lightning protection and early warning in various places. At present, lightning monitoring and forecasting generally use a rotating electric field mill (Electric field mill), also known as an atmospheric electric field mill, which is based on the electrostatic effect of lightning and measures the size and polarity of the electrostatic field generated during the electrification process of thunderstorm clouds. The advantage of this instrument is that it can monitor the whole process of lightning occurrence, development, and dissipation. Its disadvantage is that the monitoring range is small, and it can only monitor lightning activities within the radius of 8-9km from the measuring ...

AI Technical Summary

Problems solved by technology

However, it cannot detect the electrostatic effect in the process of electrification, development and dissipation of thunderstorm cloud. Similar to the lightning location system, it monitors the effect of lightning, so in the whole process of lightning activity, if the first lightning occurs at the monitoring point (although this possibility is very, very small), in this case it will not show the forecast effect, and the atmospheric electric field instrument just makes up for this defect

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