CN111811570A - Method and system for multi-channel all-weather measurement of synthesized field intensity of direct-current transmission line - Google Patents
Method and system for multi-channel all-weather measurement of synthesized field intensity of direct-current transmission line Download PDFInfo
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Abstract
The invention discloses a method and a system for multi-channel all-weather measurement of the synthesized field intensity of a direct current transmission line, wherein the method comprises the following steps: arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each field mill carries out real-time measurement on the direct current synthesized field intensity to obtain synthesized field intensity measurement data of each field mill, and the synthesized field intensity measurement data are sent to a host according to a preset time sequence; measuring meteorological parameters through a meteorological station, and sending the meteorological parameters to a host according to a preset time sequence; acquiring the content of particulate matters in the air through an atmospheric dust meter, and sending the content of the particulate matters in the air to a host according to a preset time sequence; acquiring rainfall and snowfall moments through a weather phenomenon instrument, and sending the rainfall and snowfall moments to a host according to a preset time sequence; and determining the relationship between the synthesized field intensity measurement data and meteorological parameters, the content of particulate matters in the air and the time of rainfall and snowfall.
Description
Technical Field
The invention relates to the technical field of measurement of electromagnetic environments of power systems, in particular to a method and a system for multi-channel all-weather measurement of the composite field intensity of a direct-current power transmission line.
Background
With the vigorous construction and development of super and extra-high voltage direct-current transmission projects in China, the influence of ion current, direct-current synthetic field intensity and the like caused by direct-current transmission on the environment is more and more emphasized by departments of design, operation, environmental protection and the like. The direct current composite field intensity is used as an important environmental evaluation factor and becomes one of the decisive factors for determining the type selection and arrangement mode of the direct current transmission engineering conductor.
The development process of the corona of the direct current transmission line is different from that of the corona of the alternating current transmission line, the corona discharge of the high-voltage direct current transmission line can generate charged ions, and the charged ions are pushed away to the vicinity of the ground under the action of an electric field, so that the electric field strength is increased to be multiple times of the nominal electric field, and further, the direct current composite field strength is generated. Due to the existence of ions, the direct current synthetic field intensity is greatly influenced by the conditions of external wind speed, rainfall, snowfall and the like.
When environmental influence evaluation is carried out in China, generally, direct current synthetic field intensity measurement is carried out in good weather with wind speed less than 2m/s, no rain, no fog and no snow, only the measurement result is obtained in the good weather, residents along the actual power transmission line are under the influence of the electromagnetic environment of the direct current transmission line for a long time, people are very concerned about the level and the characteristics of the direct current synthetic field intensity in various climates, the direct current synthetic field intensity measurement data in severe weather such as snow and snow are very deficient, the conventional synthetic field intensity measurement device and method are difficult to meet the application requirement of the severe weather, meanwhile, when the content of particulate matters in the air is high, dust is easily accumulated on a field grinding probe to cause inaccurate measurement results, and a set of direct current transmission line synthetic field intensity measurement system and method is urgently required to be established to realize all-weather accurate measurement of the direct current synthetic.
Therefore, a technology is urgently needed to realize multi-channel all-weather measurement of the synthesized field intensity of the direct current transmission line.
Disclosure of Invention
The technical scheme of the invention provides a method and a system for multi-channel all-weather measurement of the synthesized field intensity of a direct current transmission line, which aim to solve the problem of how to accurately measure the all-weather synthesized field intensity of the direct current transmission line.
In order to solve the above problems, the present invention provides a method for multi-channel all-weather measurement of the composite field strength of a dc power transmission line, the method comprising:
arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each of the plurality of field mills is provided with an address mark, each field mill carries out real-time measurement on the direct current synthesized field intensity to obtain synthesized field intensity measurement data of each field mill, and the synthesized field intensity measurement data are sent to a host according to a preset time sequence;
arranging a weather station in a safety area outside the site mill, measuring weather parameters through the weather station, and sending the weather parameters to a host according to a preset time sequence;
arranging an atmospheric dust meter in a safety area outside the site mill, acquiring the content of particulate matters in the air through the atmospheric dust meter, and sending the content of the particulate matters in the air to a host according to a preset time sequence;
arranging a weather phenomenon instrument in a safety area outside the site mill, acquiring rainfall and snowfall moments through the weather phenomenon instrument, and sending the rainfall and snowfall moments to a host according to a preset time sequence;
and determining the relation between the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time based on the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time.
Preferably, each of the field mills is of a waterproof design and is cleaned at a set period or when the particulate matter content in the air is greater than a threshold value.
Preferably, the host sends a control command to all the field mills to realize the synchronous measurement of the synthesis field intensity by all the field mills.
Preferably, the set area covers 50m of each of the two side facings, the distance between every two field mills on the outer sides of the side facings is not less than 5m, and the distance between every two field mills on the inner sides of the side facings is not more than 5 m.
Preferably, the host is powered by a UPS; the UPS is used for supplying power to the field mill, the meteorological station, the atmospheric dust meter and the weather phenomenon meter;
the UPS power supply is converted into low-voltage direct current through the power converter and then supplies power to the field mill.
Based on another aspect of the present invention, the present invention provides a system for multi-channel all-weather measurement of the composite field strength of a dc transmission line, the system comprising: a plurality of field mills, weather stations, atmospheric dust meters, weather phenomenon meters and hosts;
arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each of the plurality of field mills is provided with an address mark, each field mill carries out real-time measurement on the direct current synthesized field intensity to obtain synthesized field intensity measurement data of each field mill, and the synthesized field intensity measurement data are sent to a host according to a preset time sequence;
arranging a weather station in a safety area outside the site mill, measuring weather parameters through the weather station, and sending the weather parameters to a host according to a preset time sequence;
arranging an atmospheric dust meter in a safety area outside the site mill, acquiring the content of particulate matters in the air through the atmospheric dust meter, and sending the content of the particulate matters in the air to a host according to a preset time sequence;
arranging a weather phenomenon instrument in a safety area outside the site mill, acquiring rainfall and snowfall moments through the weather phenomenon instrument, and sending the rainfall and snowfall moments to a host according to a preset time sequence;
and determining the relation between the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time based on the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time.
Preferably, each of the field mills is of a waterproof design and is cleaned at a set period or when the particulate matter content in the air is greater than a threshold value.
Preferably, the host sends a control command to all the field mills to realize the synchronous measurement of the synthesis field intensity by all the field mills.
Preferably, the set area covers 50m of each of the two side facings, the distance between every two field mills on the outer sides of the side facings is not less than 5m, and the distance between every two field mills on the inner sides of the side facings is not more than 5 m.
Preferably, the host is powered by a UPS; the UPS is used for supplying power to the field mill, the meteorological station, the atmospheric dust meter and the weather phenomenon meter;
the UPS power supply is converted into low-voltage direct current through the power converter and then supplies power to the field mill.
The technical scheme of the invention provides a method for multi-channel all-weather measurement of the synthesized field intensity of a direct current transmission line, which comprises the following steps: arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each field mill in the plurality of field mills is provided with an address mark, each field mill carries out real-time measurement on the direct current synthesized field intensity to obtain synthesized field intensity measurement data of each field mill, and the synthesized field intensity measurement data are sent to the host according to a preset time sequence; arranging a weather station in a safety area outside the site mill, measuring weather parameters through the weather station, and sending the weather parameters to the host according to a preset time sequence; arranging an atmospheric dust meter in a safety region outside the site mill, acquiring the content of particulate matters in the air through the atmospheric dust meter, and sending the content of the particulate matters in the air to a host according to a preset time sequence; arranging a weather phenomenon instrument in a safety area outside the site mill, acquiring rainfall and snowfall moments through the weather phenomenon instrument, and sending the rainfall and snowfall moments to a host according to a preset time sequence; and determining the relationship between the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time based on the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time. The technology of the invention realizes all-weather measurement and measurement of the synthesized field intensity of the ultra-high voltage and extra-high voltage direct current transmission lines, and obtains the characteristics of the synthesized field intensity and the relation between the characteristics and meteorological parameters. The acquired measurement data can be used for line optimization design and environmental protection, and meanwhile, important basis is provided for monitoring, evaluation and control of the electromagnetic environment of the direct current line. The technical scheme of the invention can be applied to DC synthesis field intensity measurement in the field of DC power transmission engineering in future, monitoring of synthesis field intensity, environmental protection acceptance and research, and has high popularization value and wide application prospect.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
FIG. 1 is a flow chart of a method for multi-channel all-weather measurement of the composite field strength of a DC transmission line according to the preferred embodiment of the invention;
FIG. 2 is a system configuration diagram for multi-channel all-weather measurement of the composite field strength of the DC transmission line according to the preferred embodiment of the present invention; and
fig. 3 is a schematic diagram of external power supply of the field mill according to the preferred embodiment of the invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a flow chart of a method for multi-channel all-weather measurement of the composite field strength of a direct current transmission line according to the preferred embodiment of the invention. The invention provides a multichannel all-weather measurement method for the synthesized field intensity of a direct current transmission line, which at least comprises 1 host, 20 field mills, 1 computer, 2 UPS power supplies, 1 power supply converter, 1 meteorological station, 1 weather phenomenon instrument, 1 set of monitoring system, 1 atmospheric dust instrument and 1 set of remote control system. The field intensity is measured through the host and the field mill, the weather station and the weather phenomenon instrument measure weather parameters, the atmospheric dust instrument measures the content of particulate matters in air, the computer is arranged in a measurement field, and the remote control system can check measurement data at any time through the Internet and monitor the field condition through the monitoring system. As shown in fig. 1, the present invention provides a method for multi-channel all-weather measurement of the composite field strength of a dc transmission line, the method comprising:
preferably, in step 101: arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each of the plurality of field mills is provided with an address mark, each field mill carries out real-time measurement on the direct current synthesized field intensity, synthesized field intensity measurement data of each field mill are obtained, and the synthesized field intensity measurement data are sent to the host according to a preset time sequence. The method selects a field mill for measurement arranged in the center of a span with flat terrain of the direct current transmission line, and can arrange the field mill from 50m outside one side of a pole wire to the other side of the pole wire, such as a measuring cross section with a distance of 22m between two pole wires of the +/-800 kV direct current transmission line and a total length of not less than 122m, and if one field mill is arranged at an interval of 5m, 25 field mills are required to be arranged. The synthetic measurement data includes a station location, a measurement time, and a synthetic block strength value.
Preferably, at step 102: and arranging a weather station in a safety area outside the site mill, measuring weather parameters through the weather station, and sending the weather parameters to the host according to a preset time sequence.
Preferably, in step 103: and arranging an atmospheric dust meter in a safety region outside the site mill, acquiring the content of the particles in the air through the atmospheric dust meter, and sending the content of the particles in the air to the host according to a preset time sequence.
Preferably, at step 104: arranging a weather phenomenon instrument in a safety area outside the site mill, acquiring rainfall and snowfall time through the weather phenomenon instrument, and sending the rainfall and snowfall time to the host according to a preset time sequence.
Preferably, at step 105: and determining the relationship between the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time based on the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time.
Preferably, each mill is of a waterproof design and is cleaned on a set cycle or when the particulate matter content in the air is above a threshold value.
Preferably, the host sends a control command to all the field mills to realize the synchronous measurement of the synthesis field intensity by all the field mills.
Preferably, the set area covers 50m outside each side phase, the distance between every two field mills outside each side phase is not less than 5m, and the distance between every two field mills inside each side phase is not more than 5 m.
Preferably, the host is powered by the UPS; the UPS is used for supplying power to the field mill, the meteorological station, the atmospheric dust meter and the weather phenomenon meter; the UPS power supply is converted into low-voltage direct current through the power converter and then supplies power to the field mill.
The invention arranges a computer, 1 UPS power supply and 1 host in a house or a built temporary building which is not far away from a line. The invention arranges a monitoring system near the field mill, and the monitoring system should be kept at a sufficient distance from the field mill, not only can clearly monitor the field condition, but also should not influence the measurement result.
The invention arranges 1 weather station, 1 weather phenomenon instrument and 1 atmosphere dust instrument near the field mill, the weather station, the weather phenomenon instrument, the atmosphere dust instrument and the monitoring system should be kept at enough distance of the field mill, not only the field condition should be clearly monitored, but also the measuring result should not be influenced.
In the invention, 1 UPS power supply and 1 power supply converter are arranged near the mill, and the direct current output by the power supply converter is connected with the power supply port of each field mill.
Each system of the invention supplies power and connects communication, and debugging is carried out until the communication and display are normal;
the remote control system is in communication connection with a computer for field measurement;
the invention starts the measuring system and the monitoring system, and can start the measurement through an on-site computer or through remote control, so as to obtain meteorological parameters, atmospheric particulate parameters and field mill measuring results at different positions;
the data of the invention is stored and measured continuously, the software on the computer can automatically start to measure and store the data;
after the device works for a period of time, such as data abnormity or excessive particulate matter content in air, the field mill measuring water gun can be stopped to clean in time, and the measurement is required to be immediately resumed after the cleaning is finished.
Fig. 2 is a system structure diagram for multi-channel all-weather measurement of the composite field strength of the direct current transmission line according to the preferred embodiment of the invention. The invention provides a multichannel all-weather measurement system for the synthesized field intensity of a direct current transmission line. The invention solves the problem that the conventional synthetic field intensity measuring device and method are difficult to meet the application requirement of severe weather by the waterproof and antifouling design and treatment of the probe, and realizes all-weather accurate measurement of the direct current synthetic field intensity. As shown in fig. 2, the invention relates to a system for multi-channel all-weather measurement of the composite field strength of a direct current transmission line, which comprises: a plurality of field mills, a weather station, an atmospheric dust meter, a weather phenomenon meter and a host.
Arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each of the plurality of field mills is provided with an address mark, each field mill carries out real-time measurement on the direct current synthesized field intensity, synthesized field intensity measurement data of each field mill are obtained, and the synthesized field intensity measurement data are sent to the host according to a preset time sequence.
And arranging a weather station in a safety area outside the site mill, measuring weather parameters through the weather station, and sending the weather parameters to the host according to a preset time sequence.
And arranging an atmospheric dust meter in a safety region outside the site mill, acquiring the content of the particles in the air through the atmospheric dust meter, and sending the content of the particles in the air to the host according to a preset time sequence.
Arranging a weather phenomenon instrument in a safety area outside the site mill, acquiring rainfall and snowfall time through the weather phenomenon instrument, and sending the rainfall and snowfall time to the host according to a preset time sequence.
And determining the relationship between the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time based on the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time.
Preferably, each mill is of a waterproof design and is cleaned on a set cycle or when the particulate matter content in the air is above a threshold value.
Preferably, the host sends a control command to all the field mills to realize the synchronous measurement of the synthesis field intensity by all the field mills.
Preferably, the set area covers 50m outside each side phase, the distance between every two field mills outside each side phase is not less than 5m, and the distance between every two field mills inside each side phase is not more than 5 m.
Preferably, the host is powered by the UPS; the UPS is used for supplying power to the field mill, the meteorological station, the atmospheric dust meter and the weather phenomenon meter; the UPS power supply is converted into low-voltage direct current through the power converter and then supplies power to the field mill.
The invention provides a multichannel all-weather measurement system for the synthesized field intensity of a direct current transmission line, which at least comprises 1 host, 20 field mills, 1 computer, 2 UPS power supplies, 1 power supply converter, 1 meteorological station, 1 weather phenomenon instrument, 1 atmospheric dust instrument, 1 set of monitoring system and 1 set of remote control system. The main machine and the field mill are used for carrying out synthesized field intensity measurement, the weather station and the weather phenomenon instrument are used for measuring weather parameters, the atmospheric dust instrument is used for measuring the content of particulate matters in air, the computer is arranged in a measurement field, and the remote control system can check measurement data at any time through the Internet and monitor the field condition through the monitoring system.
The host and the field mill are connected by wireless communication, and multipoint synchronous measurement of direct current synthetic field intensity is realized through host control;
the field mill adopts a waterproof design, can realize all-weather measurement of direct current synthetic field intensity, and can clean the probe by water flushing after the field mill is used for a period of time. The field mill adopts an isolated power supply module for power supply, a lithium battery is arranged in the field mill, and a backup power supply can be provided when an external power supply fails.
The invention supplies power to the main machine through 1 UPS power supply, and the other 1 UPS power supply supplies power to the field mill, the meteorological station, the weather phenomenon instrument and the monitoring system, wherein the UPS power supply supplies power to the field mill after being converted into low-voltage direct current through the power supply converter.
The computer and the remote control are connected with the Internet, and the remote control system realizes the field control and query of measurement through remote control software.
The meteorological station and the visibility can acquire meteorological station parameters and rainfall and snowfall moments, and adopt the same time interval as the measurement of the synthetic field intensity and perform data storage;
the atmospheric dust meter can acquire the content of particulate matters in the air in real time, adopts the same time interval as the measurement of the synthetic field intensity and stores data, and reminds the field mill to be cleaned in time when the content of the particulate matters in the air is higher;
the computer of the invention can synchronously display and store the measurement time, meteorological parameters and direct current synthesis field intensity measurement data of different positions. The synthetic measurement data includes a station location, a measurement time, and a synthetic block strength value.
The direct current synthesized field intensity control has important significance for protecting the environment and the physical and mental health of surrounding residents, the existing direct current synthesized field intensity measuring system is generally not waterproof and can only be used for direct current synthesized field intensity measurement in good weather, simultaneously, the measuring points are few, meteorological parameters can not be synchronized, and China lacks all-weather synthesized field intensity measuring results of ultra-high and extra-high voltage direct current lines in commercial operation and is difficult to meet the requirements of line optimization design and environmental protection.
The multi-channel all-weather measurement system for the synthesized field intensity of the direct-current transmission line, which is established by the invention, realizes the multi-point synchronous measurement of the direct-current synthesized field intensity and meteorological parameters through the design, the arrangement and various optimization treatments of the waterproof probe, and improves the accuracy and the effectiveness of the measurement result by monitoring the content of particulate matters in the air and cleaning the field mill in time.
The invention can realize all-weather measurement and measurement of the synthesized field intensity of the ultra-high voltage and extra-high voltage direct current transmission lines and acquire the characteristics of the synthesized field intensity and the relation between the characteristics and meteorological parameters. The acquired measurement data can be used for line optimization design and environmental protection, and meanwhile, important basis is provided for monitoring, evaluation and control of the electromagnetic environment of the direct current line. The achievement of the invention can be applied to the design and development of the direct current synthetic field intensity measuring device in the field of direct current transmission engineering in the future, the monitoring, the environmental protection acceptance and the research of the synthetic field intensity, and has high popularization value and wide application prospect.
Fig. 3 is a schematic diagram of external power supply of the field mill, wherein 220V voltage output by the UPS outputs low-voltage direct current through the AC/DC converter, and each field mill is supplied with power through a cable, thereby improving field safety.
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a// the [ device, component, etc ]" are to be interpreted openly as at least one instance of a device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
Claims (10)
1. A method for multi-channel all-weather measurement of the composite field strength of a dc transmission line, the method comprising:
arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each of the plurality of field mills is provided with an address mark, each field mill carries out real-time measurement on the direct current synthesized field intensity to obtain synthesized field intensity measurement data of each field mill, and the synthesized field intensity measurement data are sent to a host according to a preset time sequence;
arranging a meteorological station in a safety area outside the site mill, measuring meteorological data through the meteorological station, and sending the meteorological data to a host according to a preset time sequence;
arranging an atmospheric dust meter in a safety area outside the site mill, acquiring the content of particulate matters in the air through the atmospheric dust meter, and sending the content of the particulate matters in the air to a host according to a preset time sequence;
arranging a weather phenomenon instrument in a safety area outside the site mill, acquiring rainfall and snowfall moments through the weather phenomenon instrument, and sending the rainfall and snowfall moments to a host according to a preset time sequence;
and determining the relation between the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time based on the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time.
2. The method of claim 1, wherein each field mill is of a waterproof design and is cleaned on a set cycle or when the particulate content in the air is above a threshold.
3. The method of claim 1, wherein the host sends control commands to all the field mills to achieve synchronous measurement of the synthetic field strength by all the field mills.
4. The method of claim 1, wherein the defined area covers 50m each of the two side facings, the spacing between each of the field mills on the outer side of the side facings is not less than 5m, and the spacing between each of the field mills on the inner side of the side facings is not more than 5 m.
5. The method of claim 1, powering the host machine via a UPS power source; the UPS is used for supplying power to the field mill, the meteorological station, the atmospheric dust meter and the weather phenomenon meter;
the UPS power supply is converted into low-voltage direct current through the power converter and then supplies power to the field mill.
6. A system for multi-channel all-weather measurement of the composite field strength of a dc transmission line, the system comprising: a plurality of field mills, weather stations, atmospheric dust meters, weather phenomenon meters and hosts;
arranging a plurality of field mills in a set area from one side phase to the other side phase of the direct-current transmission conductor; each of the plurality of field mills is provided with an address mark, each field mill carries out real-time measurement on the direct current synthesized field intensity to obtain synthesized field intensity measurement data of each field mill, and the synthesized field intensity measurement data are sent to a host according to a preset time sequence;
arranging a meteorological station in a safety area outside the site mill, measuring meteorological data through the meteorological station, and sending the meteorological data to a host according to a preset time sequence;
arranging an atmospheric dust meter in a safety area outside the site mill, acquiring the content of particulate matters in the air through the atmospheric dust meter, and sending the content of the particulate matters in the air to a host according to a preset time sequence;
arranging a weather phenomenon instrument in a safety area outside the site mill, acquiring rainfall and snowfall moments through the weather phenomenon instrument, and sending the rainfall and snowfall moments to a host according to a preset time sequence;
and determining the relation between the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time based on the synthesized field intensity measurement data and the meteorological parameters, the content of the particulate matters in the air and the rainfall and snowfall time.
7. The system of claim 6, wherein each of the field mills is of a waterproof design and is cleaned on a set cycle or when the particulate content in the air is above a threshold.
8. The system of claim 6, wherein the host sends control commands to all the field mills to realize synchronous measurement of the synthetic field strength by all the field mills.
9. The system of claim 6, wherein the defined area covers 50m each of the two side facings, the spacing between each of the field mills on the outer side of the side facings is not less than 5m, and the spacing between each of the field mills on the inner side of the side facings is not more than 5 m.
10. The system of claim 6, the host powered by a UPS power source; the UPS is used for supplying power to the field mill, the meteorological station, the atmospheric dust meter and the weather phenomenon meter;
the UPS power supply is converted into low-voltage direct current through the power converter and then supplies power to the field mill.
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