The working principle of the lightning early warning system: as we all know, when the electric charge in the thunderstorm cloud reaches a certain amount, a strong electric field is formed between different parts of the cloud or between the cloud and the ground. Discharge occurs between clouds and clouds or between clouds and ground. That is, the occurrence of lightning comes from the accumulation of electric charges inside the thundercloud; this means that as long as the change of the electrostatic field in the space can be accurately detected, the accumulation of electric charges in the thundercloud can be indirectly understood.

According to the relevant meteorological data recorded around the world over the years, the occurrence of lightning requires certain conditions and has regularity: when thunderstorm clouds approach or form, the ground electrostatic field changes in a certain way, and under standard measurement conditions (plain , flat bottom, no tip effect), the average field strength of the electrostatic field is about 150V/M when the weather is fine, and when thunderstorm clouds appear, the electric field strength of the electrostatic field can increase to +/-15KV/M, or even higher . When a single thunderstorm cloud layer or combined with the preceding thunderstorm cloud, the electric field strength increases for about 15-20 minutes. We believe that when the electric field strength exceeds 2KV/M, the thunderstorm cloud is forming or approaching, and the change of electric field strength is collected by the atmospheric field instrument. And through the back-end software platform algorithm, it can quickly and accurately predict the local lightning strike situation in advance.

The role of lightning warning system
1. It can issue a lightning warning warning signal about 5 to 30 minutes before the lightning strike.
2. Remind field operators to stop or suspend outdoor operations in time, enter a safe area to avoid lightning and prevent lightning strikes.
3. For some operations that may cause major harm, take appropriate measures in time before lightning strikes to prevent major lightning strike accidents. For example: outdoor operations in flammable and explosive places must be stopped or suspended at this time.
4. The automatic opening and closing system is adopted to isolate the power supply line from lightning, automatically switch the UPS or start the generator set to supply power, and provide protection for some important equipment or uninterrupted and valuable services.