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Small-region lightning monitoring method and system

A positioning method and technology of positioning system, which are applied in the measurement of atmospheric potential difference, measurement device, measurement of electrical variables, etc., can solve the problem of difficulty in improving positioning accuracy, and achieve the effects of improving measurement accuracy, ensuring reliability, and improving positioning accuracy.

Active Publication Date: 2016-08-17
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

The time difference method is limited by the time accuracy, so the positioning accuracy is difficult to improve

Method used

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  • Small-region lightning monitoring method and system
  • Small-region lightning monitoring method and system
  • Small-region lightning monitoring method and system

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Embodiment Construction

[0036] The preferred embodiments of the invention will be further described in detail below.

[0037] Such as image 3 As shown, a schematic diagram of an embodiment of a residential lightning monitoring and positioning method. In this embodiment, a self-made lightning current sensor is used, and its response characteristics are calibrated in the laboratory to obtain the relationship between the output voltage, the current amplitude, and the measurement distance. , by using three lightning current sensors at different positions, the lightning current amplitude and plane coordinates can be obtained by solving the equations for three sets of measurement data obtained from the same lightning current. The lightning current sensor can use air-core coils, and the three coils are placed on the edge of the measured area in the same direction. The angle between the axes of the air-core coils is 120° to ensure that the entire measurement system has a high degree of lightning current at ...

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Abstract

The invention discloses a small-region lightning monitoring method and system, and the method comprises the following steps: S1, carrying out the testing calibration of a function relation among the output voltage peak value of a lightning sensor, a lightning current peak value and a lightning stroke point during lightning; S2, setting three lightning sensors in a measured small region; S3, respectively detecting the output voltage peak values of three lightning sensors during lightning, and jointly determining the position of the lightning stroke point according to the function relation. The method can achieve the precise positioning of the lightning current in the small region, and the precise measurement of the amplitude value of the lightning current.

Description

【Technical field】 [0001] The invention relates to a small-area lightning monitoring and positioning method and system. 【Background technique】 [0002] Lightning location and lightning current parameter monitoring play an important role in the study of lightning characteristics and lightning protection. The lightning location system can provide more technical information for lightning protection, meteorological research, construction and other fields. At present, there are relatively mature lightning monitoring networks all over the world. By monitoring the direction of the magnetic field generated by the lightning current and the time it reaches the sensor, parameters such as the location of the lightning strike, the amplitude of the lightning current, and the polarity of the lightning current can be calculated. The positioning methods of lightning positioning are mainly divided into single-station positioning and multi-station positioning. The more widely used one is multi...

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Application Information

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IPC IPC(8): G01R29/08
CPCG01R29/08G01W1/16G01R29/0842
Inventor 梅红伟闫石王黎明
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV