Research Of Lightning Fires Warning System Based On Field Mill Atmospheric Electric Field Meter

The fire caused by lightning generally called Lightning fires, it is the most dangerous of forest fire natural sources. In recent years because the weather becomes warm etc factor.Lightning caused by forest fires proportion generally been increasing trend. Lightning fires as an uncontrollable disaster, its formation mechanism is very complex.The time and place of the lightning fires happening by the effects of the atmospheric electric field, the combustible and meteorological conditions. Above mentioned these conditions all had a close relation at that time with the weather in the region. Regular fire prevention measures can't prevent and reduce the occurrence of lightning fires. Another caused by lightning forest fire usually occurs in the most inaccessible areas, once the occurrence of forest fire is difficult to discover in time,often can form extensive forest fire cause irreparable damages. So if you want to give timely warning when the lightning happening, we should establish effective lightning early warning system. And comprehensive analysis of the lightning fires happening fire environment makes the corresponding judgment.This topic from the state forestry bureau "948" project "Lightning detection technology introduction of forest fire prevention".The paper presents the design of lightning warning system, mainly through the monitoring and warning to the thunderstorm, in order to realize the preliminary forecast lightning occurs in the forest. And then Comprehensive analysis of local climate, geography, burnable etc lightning fires happening fire environment to make corresponding warning.Because lightning is the most direct reasons of the lightning fires, so the lightning early warning is the nucleus of the lightning fire early warning system. And the whole lightning fire early warning system is composed of lightning early warning and comprehensive model of the lightning fire environment.This paper firstly introduces the basic principle of the lightning early warning system.Presents a Lightning early warning method based on field mill atmospheric electric field meter. According to the atmosphere clouds electric field change different characteristics in different stages of detecting the thunderstorm happen, the thunderstorm real-time forming stages can be judged out. Thus an early warning in advance before thunder happening.Then, the paper introduced concretely lightning warning system structure. Mainly introduces the designs of a new field mill atmospheric electric field meter.Including the design of electric field meter lead circuit, the software and hardware of the data processing circuit, and the electric field meter data processing software. At present electric field meter has been put into operation in daxinganling area for a long time, and achieved a satisfactory experiment data. Through to summary and analysis the data of Lightning detection, can verify the effectiveness of application field mill atmospheric electric field meter in lightning early warning, and sure the method of electric field threshold setting in lightning early warning.Finally, article comprehensively analyzed the relationship between lightning and lightning fires, and the forest lightning fires happened environment. And established a set of lightning fires early warning comprehensive index model through the data statistics. Proposed setting up a lightning fires comprehensive early warning platform by combining lightning early warning with lightning fires index model, realize the specialized services of the lightning fires early warning.