Whole-process all-weather electromagnetic environment monitoring system and whole-process all-weather electromagnetic environment monitoring method

Abstract

The invention discloses a whole-process all-weather electromagnetic environment monitoring system and a whole-process all-weather electromagnetic environment monitoring method. The monitoring system comprises a metal fixed bracket of which one end is grounded and the other end is connected with a 3D ground reference electric field sensor probe, a 3D magnetic field sensor and an electret condenser microphone. The 3D ground reference electric field sensor probe is used for transmitting a detected electric field strength signal to a microcontroller through a signal conditioning circuit and an A/D conversion circuit in sequence. The 3D magnetic field sensor is used for converting a detected magnetic field strength signal into a voltage signal and then transmitting the voltage signal to the microcontroller through the signal conditioning circuit and the A/D conversion circuit in sequence. The electret condenser microphone is used for converting collected noise into a voltage signal and transmitting the voltage signal to the microcontroller through the signal conditioning circuit and the A/D conversion circuit in sequence. The microcontroller is connected with a data sending and receiving module. The whole-process all-weather electromagnetic environment monitoring system further comprises a power module which is a mains supply or a battery.

Description

technical field [0001] The invention belongs to the field of transformer substation detection, and in particular relates to a whole-process, all-weather electromagnetic environment monitoring system and method. Background technique [0002] At present, most of the measuring instruments of power frequency electric field widely used at home and abroad belong to the field strength meter of suspended body. Since this kind of field strength meter is based on the principle of suspension monitoring, the insulating bracket is used for support testing. Different degrees of insulation will lead to different degrees of distortion of the power frequency electric field, resulting in different instrument readings. At the same time, when the ambient humidity is greater than 80% or in rainy days, the instrument bracket is prone to leakage current, the electric field distortion is serious, and the instrument readings will be much larger, so it cannot be monitored in high humidity or rainy we...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the measuring instruments of power frequency electric field widely used at home and abroad belong to the field strength meter of suspended body. Since this kind of field strength meter is based on the principle of suspension monitoring, the insulating bracket is used for support testing. Different degrees of insulation will lead to different degrees of distortion of the power frequency electric field, making the instrument readings different

At the same time, when the ambient humidity is greater than 80% or in rainy days, the instrument bracket is prone to leakage current, the electric field distortion is more serious, and the instrument readings will be much larger, so it cannot be monitored in high humidity or rainy weather

[0003] If the whole process of all-weather monitoring is to be achieved, the current monitoring instruments for the electromagnetic environment still have the following problems, resulting in relatively limited monitoring work:

[0004] (1) The electromagnetic environment monitoring devices currently used are mostly powered by batteries, which cannot meet the needs of long-term work;

[0005] (2) The current electromagnetic environment monitoring work often needs to carry electromagnetic environment monitoring devices, temperature and humidity meters, barometers, noise meters and other equipment. There are many instruments to carry and it is inconvenient to operate;

[0006] Therefore, the electromagnetic environment monitoring instruments widely used at home and abroad cannot systematically analyze the electromagnetic environment data of transmission lines or substations, nor can they perform real-time monitoring or provide convincing data to the public.

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