Method and system for comprehensively and synchronously observing lightning stroke discharge

Abstract

The invention relates to a method and a system for comprehensively and synchronously observing lightning stroke discharge. The method is based on a global positioning system (GPS) timing technology, and the lightning stroke discharge is observed by the observation system. The method comprises the following steps of: providing the activity trend of lightning storm by using a wide area lightning location system, and reminding the arrival of the lightning storm by using an atmospheric average electric field instrument; and outputting an alternating current (AC) B code signal to a high-speed image pickup device by using a GPS timing device, marking the formation time of each frame of picture by using a clock system, receiving a time to live (TTL) level signal from a lightning high-speed trigger device, outputting correct time t corresponding to a TTL level rising edge to a personal computer (PC), and recording the TTL level signal and electrical and acoustic measurement signals by using a high-speed data storage recorder. The system comprises the wide area lightning location system, a data analysis and processing server, the atmospheric average electric field instrument, the high-speed image pickup device, the lightning high-speed trigger device, a quick electric field change instrument, a slow electric field change instrument, a magnetic field measuring instrument, an array thunder detection device, the high-speed data storage recorder and the GPS timing device.

Description

technical field [0001] The invention relates to the research field of lightning physics and lightning protection technology, in particular to a comprehensive synchronous observation method and system for lightning discharge. Background technique [0002] The comprehensive observation of lightning discharge is an important means to understand the development process of lightning discharge. Due to the randomness and instantaneous nature of natural lightning, the observation equipment used for lightning discharge is required to have a high temporal and spatial resolution. With the development of electronic technology and computer technology With the rapid development, the performance of a single observation device has been greatly developed. At this time, how to synchronize between various devices has become a key problem that needs to be solved urgently. Through experiments and research, the applicant found that only by realizing synchronous observation can the specific charac...

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Problems solved by technology

The applicant believes that this method has certain errors, and it is difficult to achieve the microsecond level accuracy of lightning discharge measurement

[0004] As far as the applicant knows, the randomness of lightning discharge will lead to low efficiency of conventional lightning discharge observations. In order to ensure the capture of random lightning, the common method in the industry is to keep the observation equipment in a charged working state for a long time, which will lead to safety hazards. There will be hidden dangers, and at the same time, it will cause adverse consequences, that is, the long-term live working state of the observation equipment will greatly shorten the service life of the observation equipment

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