CN115413522B - Artificial rain and snow reducing device and method based on charged particle catalysis of aircraft cluster sowing - Google Patents

Abstract

The invention discloses a device and method for catalyzing artificial rain and snow based on aircraft groups spreading charged particles, and belongs to the field of artificial weather modification. The device includes: the aircraft cluster and the charged particle generation unit mounted on the aircraft, the environmental data acquisition unit and the central control unit of the cluster; the charged particle generation unit is used to generate charged particles through discharge for high-altitude sowing of the aircraft cluster; the environmental data acquisition unit is used to collect The meteorological parameters of the clouds in the area where the aircraft cluster is spreading; the central control unit of the cluster is used to control the aircraft cluster according to the collected cloud droplet size to realize the high-altitude sowing operations of small circulation within clouds and large circulation between clouds. Also provided is a method for catalyzing artificial rain and snow based on aircraft clusters spreading charged particles. The invention can promote the condensation of water vapor and the growth of cloud droplets in the cloud layer, reduce the requirement on weather window conditions, can produce rain and snow effects, and can realize a large-scale effect of more than 10km.

Description

Device and method for catalyzing artificial rain and snow by spreading charged particles based on aircraft cluster

technical field

The invention belongs to the field of artificial weather modification, and more specifically relates to a device and a method for catalyzing artificial rain and snow based on aircraft clusters spreading charged particles.

Background technique

Artificial rainfall is the most common means to efficiently develop and utilize atmospheric water resources. At this stage, most of the traditional artificial rainfall enhancement is based on cloud-seeding technology, which spreads catalysts such as silver iodide and dry ice into the cloud, increases the volume of aerosol through condensation, and promotes the growth of water droplets in the cloud layer, so as to trigger the natural rainfall process. size of. However, this method can only be realized under certain natural cloud conditions. It not only requires a large number of cumulonimbus clouds in the air, but also requires temperature and humidity to be in a very narrow range, and the technical requirements are relatively strict. If the cloud layer itself lacks rainfall conditions, it is difficult to achieve the effect of rainfall.

Charged particles can induce water vapor to condense to form macroscopic droplets. A large number of experiments have successively verified the feasibility of corona discharge-induced artificial rain and snow under different scenarios, and the weather window conditions are low. In the prior art, the method of using charged particles to catalyze artificial rain and snow includes: erecting the device on the top of a mountain or on the coastline. In this way, because the device is fixed, only the hot air rises to send charged particles into the cloud layer, and the rainfall effect is limited; Some use a single aircraft to spread charged particles to the cloud layer, which can expand the rainfall area to a certain extent, but the range of action is still limited, and it is difficult to achieve a large-scale rainfall of more than 10km. More importantly, the rainfall effect of the existing methods is not ideal.

Contents of the invention

Aiming at the defects and improvement needs of the prior art, the present invention provides a device and method for catalyzing artificial rain and snow based on aircraft clusters spreading charged particles. operation, while improving the effect of rain and snow.

In order to achieve the above object, according to one aspect of the present invention, a device for spreading charged particles to catalyze artificial rain and snow based on aircraft clusters is provided, including: aircraft clusters and charged particle generation units mounted on the aircraft, environmental data acquisition units and cluster central control unit;

The charged particle generating unit is used to generate charged particles through electric discharge for high-altitude sowing of aircraft clusters;

The environmental data collection unit is used to collect the cloud layer meteorological parameters in the sowing area of the aircraft group;

The cluster central control unit is used to compare the cloud droplet average particle size R of different clouds in the cloud layer meteorological parameters with the preset cloud droplet particle size threshold R _T , when the cloud droplet average particle size R is smaller than the threshold R _T , control the cloud layer The corresponding aircraft carries out high-altitude sowing operations in small circulation in the cloud;

When the average particle size R of cloud droplets in at least one cloud layer approaches the threshold value R _T , control the aircraft to carry out high-altitude sowing operations in a large cycle between clouds to increase the number of condensation nuclei, and at the same time make the clouds between clouds or cloud droplets with different particle sizes generate speed difference;

When the cloud droplet average particle size R in the cloud layer is greater than the threshold value R _T , end the small cycle in the cloud corresponding to the cloud layer; and when the cloud droplet average particle size R in all cloud layers is within the set time and the error If there is no drop in the cluster, the large cycle between the cluster clouds will be ended, otherwise, the small cycle within the cluster cloud will be restarted;

Wherein, the small circulation within the cloud refers to the cyclic sowing operation of different aircraft in the corresponding cloud layer, and the large circulation among the clouds refers to the cyclic sowing operation of one or more aircraft among different cloud layers.

Further, the aircraft fleet is also used to adjust the discharge voltage or discharge current of the charged particle generating unit according to the cloud meteorological parameters and the charged particle concentration distribution in the cloud during the small circulation process of the cluster cloud. Maintain the particle concentration in the cloud layer at the desired concentration state.

Further, the charged particle generating unit includes a particle generator, a high voltage direct current power supply and a cable; the particle generator is electrically connected to the output end of the high voltage direct current power supply through the cable.

Further, the particle generator includes a plurality of discharge electrodes, an insulator and an insulating frame, and the plurality of discharge electrodes are connected in series through the insulator and embedded in the insulating frame.

Further, the particle generator includes a first particle generator and a second particle generator, the high-voltage DC power supply includes a positive polarity high-voltage DC power supply and a negative polarity high-voltage DC power supply, and the first particle generator is connected to the The positive polarity high-voltage DC power supply is electrically connected, the second particle generator is electrically connected to the negative polarity high-voltage DC power supply through a cable, and the first particle generator and the second particle generator are arranged symmetrically on the aircraft.

Further, the first particle generator and the second particle generator are arranged in the cabin of the aircraft and are left-right symmetrical;

Or the first particle generator and the second particle generator are arranged in the cabin of the aircraft and are symmetrical from head to tail;

Or the first particle generator and the second particle generator are arranged symmetrically on both sides of the wings of the aircraft.

Further, the discharge electrode is a strip-shaped blade electrode, a needle electrode, a wire electrode or a mesh electrode.

According to another aspect of the present invention, there is provided a method of spreading charged particles based on aircraft clusters for catalyzing artificial rain and snow, including:

Charged particles are generated by electric discharge for high-altitude sowing of aircraft clusters;

Collect meteorological parameters of clouds in the area where the aircraft cluster is broadcast;

Compare the cloud droplet average particle size R of different cloud layers in the cloud meteorological parameters with the preset cloud droplet particle size threshold R _T , and when the cloud droplet average particle size R is smaller than the threshold R _T , control the corresponding aircraft in the cloud layer to carry out in-cloud Small cycle high-altitude sowing operation;

When the average particle size R of cloud droplets in at least one cloud layer approaches the threshold value R _T , control the aircraft to carry out high-altitude sowing operations in a large cycle between clouds to increase the number of condensation nuclei, and at the same time make the clouds between clouds or cloud droplets with different particle sizes generate speed difference;

When the cloud droplet average particle size R in the cloud layer is greater than the threshold value R _T , end the small cycle in the cloud corresponding to the cloud layer; and when the cloud droplet average particle size R in all cloud layers is within the set time and the error If there is no drop in the cluster, the large cycle between the cluster clouds will be ended, otherwise, the small cycle within the cluster cloud will be restarted;

Wherein, the small circulation within the cloud refers to the cyclic sowing operation of different aircraft in the corresponding cloud layer, and the large circulation among the clouds refers to the cyclic sowing operation of one or more aircraft among different cloud layers.

Further, in the process of the small cycle in the cluster cloud, steps are also included:

According to the meteorological parameters of the cloud layer and the concentration distribution of charged particles spread in the cloud, the discharge voltage or discharge current is adjusted to maintain the particle concentration in the cloud layer at a required concentration state.

Further, the charged particles broadcast by the aircraft cluster include positively charged particles and negatively charged particles, and the positively charged particles and the negatively charged particles are symmetrically spread on both sides of the aircraft;

Or the positively charged particles and the negatively charged particles are respectively spread at the head and tail of the aircraft.

Generally speaking, through the above technical solutions conceived by the present invention, the following beneficial effects can be obtained:

(1) The present invention first carries out the small circulation in the cloud through the aircraft fleet, and spreads charged particles to induce the collision and growth of cloud droplets to trigger rainfall. When the average particle size of the cloud droplets in the cloud layer approaches the set threshold, the large circulation between the clouds of the aircraft is started. Spread charged particles to increase the number of condensation nuclei, and at the same time create a speed difference between cloud droplets of different particle sizes in the cloud layer or in the cloud layer, improve the collision efficiency between cloud droplets to accelerate the growth of cloud droplets, and when there is obvious precipitation in the operation area, the operation area will be terminated. Small circulation in the cloud, and when precipitation continues in all operating areas, end the large circulation between the clouds of the cluster, otherwise restart the small circulation in the cloud of the cluster, so as to ensure that the operation area will continue to rain and snow, and the effect of rain and snow can be guaranteed. At the same time, because it is a high-altitude sowing operation of the aircraft fleet, the charged particles are directly spread to the cloud layer, the action position is precise and efficient, and it can be moved to any area for rain and snow. The operation is flexible and convenient, and it can easily achieve a large-scale effect of more than 10km.

(2) Positive and negative polarity charged particles are spread on both sides of the aircraft respectively. The large and small cycles facilitate polarity neutralization without destroying the original polarity of the cloud layer and producing no additional harmful substances. It is environmentally friendly and has considerable economic benefits.

All in all, the device and method for spreading charged particles to catalyze artificial rain and snow provided by the present invention can promote water vapor condensation and cloud droplet growth in the cloud layer, reduce the requirements for meteorological window conditions, and achieve the effect of rain and snow, and can realize It works in a wide range of more than 10km.

Description of drawings

Fig. 1 is a principle diagram of a single aircraft sowing charged particles for catalyzing artificial rain and snow provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the installation positions of the positive and negative particle generators for different aircraft provided by the embodiment of the present invention, wherein (a)-(f) in the figure respectively represent the schematic diagrams of the installation positions of the positive and negative particle generators of different aircraft;

3 is a schematic structural view of a charged particle generating unit provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of a single aircraft sowing operation provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of a large inter-cloud circulation and a small intra-cloud circulation of an aircraft cluster provided by an embodiment of the present invention.

Throughout the drawings, the same reference numerals are used to designate the same elements or structures, wherein:

1-discharge electrode, 2-insulation, 3-insulation frame, 4-cable, 5-high voltage DC power supply, 6-particle generator.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

In the present invention, the terms "first", "second" and the like in the present invention and the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

As shown in Figure 1, an embodiment of the present invention provides a device for spreading charged particles based on aircraft clusters for catalyzing artificial rain and snow, mainly including: aircraft clusters and charged particle generation units mounted on the aircraft, environmental data acquisition units and Cluster central control unit;

The fleet of aircraft is used to complete the high-altitude sowing operations of small circulation within clouds and large circulation between clouds;

The charged particle generation unit is used to generate charged particles through electric discharge and spread them into the cloud to accelerate the collision and fusion between cloud droplets to form larger-sized cloud droplets or liquid droplets, which will be triggered when the number of large cloud droplets reaches a sufficiently high concentration Natural rainfall; In the present embodiment, corona discharge is selected to generate charged particles;

The environmental data acquisition unit is used to collect the cloud layer meteorological parameters and position information of the aircraft cluster sowing operation area; among them, the cloud layer meteorological parameters mainly include: cloud droplet particle size, cloud droplet concentration, wind speed and direction, temperature and humidity, atmospheric pressure, cloud layer height, thickness and width;

The central control unit of the cluster is used to control the cluster of aircrafts according to the collected cloud droplet size to realize the high-altitude sowing operation of the small circulation in the cloud and the large circulation between clouds; specifically, as shown in Figure 5, the central control unit of the cluster is used to collect the collected The average cloud droplet size R in different cloud layers is compared with the preset cloud droplet size threshold R _T , and when the cloud droplet average particle size R in the cloud layer is smaller than the threshold R _T , control the corresponding aircraft in the cloud layer Circular high-altitude sowing operations, the particle generator generates a large number of positive and negative charged particles through discharge and spreads them into the cloud layer where the aircraft is located, inducing cloud droplet collision and growth to trigger rainfall;

When the average particle size R of cloud droplets in at least one cloud layer approaches the threshold value R _T (that is, R is equal to the threshold value R _T within the set error range), the aircraft is controlled to carry out high-altitude sowing operations in the large cycle between clouds, and the charged particles are spread Increase the number of condensation nuclei, and at the same time create a speed difference between cloud droplets with different particle sizes in the cloud layer or in the cloud layer, and improve the collision efficiency between cloud droplets to accelerate the growth of cloud droplets;

When the average particle size R of cloud droplets in the cloud layer is greater than the threshold R _T , that is, when there is obvious precipitation in the operation area, the small cycle in the cloud corresponding to the cloud layer is ended; and when the average particle size R of cloud droplets in all cloud layers is within the set value There is no significant drop within the time period, that is, when the precipitation continues in the operation area, the large cycle between the cluster clouds will be ended, otherwise the small cycle within the cluster cloud will be restarted.

Wherein, R _T is the threshold value of precipitation in the operation area; in this embodiment, the range of the cloud droplet particle size threshold is specifically 20-25 μm.

The small circulation within the cloud refers to the cyclic sowing operation of different aircraft in their respective cloud layers, and the large circulation between the clouds refers to the cyclic sowing operation of one or more aircraft among different cloud layers. Wherein, the one or more aircrafts that realize the large circulation between clouds may be different from the aircrafts that perform small circulations in the clouds, or may be aircrafts in a certain cloud layer or several cloud layers that have already achieved significant rainfall.

The cluster central control unit is also used to adjust the discharge voltage or discharge current of the charged particle generating unit according to the collected meteorological parameters of the cloud, control the concentration and range of charged particles broadcast by each aircraft, and improve the aircraft fleet to carry out large inter-cloud circulation and small intra-cloud circulation. The efficiency of the cycle operation realizes the spread of charged particles in a large area of more than 10km. Specifically, during the small cycle operation of the aircraft fleet in the cloud, the cluster central control unit adjusts the discharge voltage or discharge current of the high-voltage DC power supply in the charged particle generating unit according to the cloud meteorological data and the concentration distribution of charged particles scattered in the cloud, As well as the operating position of the aircraft in the cloud, the particle concentration in the entire cloud layer is maintained at a high and balanced state to ensure efficient operation.

The fleet of aircraft includes but is not limited to one or more of airplanes, balloons, airships, helicopters, etc.; in this embodiment, the fleet of aircraft is an aircraft.

The charged particle generating unit includes a particle generator 6 , a high voltage direct current power supply 5 and a cable 4 ; the particle generator 6 is connected to the output end of the high voltage direct current power supply 5 through the cable 4 .

As preferably, the high-voltage DC power supply 5 in this embodiment is a positive polarity high-voltage DC power supply and a negative polarity high-voltage DC power supply, and the particle generator 6 includes a first particle generator and a second particle generator, and the first particle generator passes through the cable 4 It is electrically connected with the positive polarity high-voltage direct current power supply, and is used to generate positive polarity particles; the second particle generator is electrically connected with the negative polarity high-voltage direct current power supply through the cable 4, and is used to generate negative polarity particles; and the first particle generator and the second particle generator The generators are symmetrically arranged on the aircraft. For example, the first particle generator and the second particle generator are installed in the cabin in a left-right symmetrical manner, as shown in (a) in Figure 2; the first particle generator and the second particle generator The two particle generators are installed in the nacelle in a symmetrical manner head to tail, as shown in (b) in Figure 2; the first particle generator and the second particle generator are hung on both sides of the wing in a left-right symmetrical manner, As shown in (c) in Figure 2; when selecting balloons, airships, helicopters, etc. Baskets, or installed in pods or nacelles according to left-right symmetry or head-to-tail symmetry, as shown in (d)-(f) in Figure 2. The high-voltage DC power supply 5 is preferably placed in the main body of the aircraft cabin.

By setting the bipolar high-voltage DC power supply and the corresponding particle generator, positive and negative charged particles can be generated at the same time, and they can be spread symmetrically. Compared with unipolar charged particles, it will not destroy the neutral state of the entire spreading area. , will not generate additional harmful substances, is environmentally friendly, and has considerable economic benefits.

In this embodiment, the particle generator includes a plurality of discharge electrodes 1, insulators 2 and insulating frames 3, wherein the particle generator is a first particle generator and a second particle generator; a plurality of discharge electrodes 1 are connected in series through the insulator 2 connection, embedded in the insulating frame 3, as shown in Figure 3.

In this embodiment, the high-voltage DC power supply 5 is continuously adjustable within 0-(±)60kV, and the power supply is stable. The central control unit of the fleet monitors the discharge current and voltage, dynamically adjusts the output voltage of the positive and negative high-voltage power supplies, and adjusts the concentration of positive and negative polar particles generated to achieve overall electrical neutrality of the aircraft.

Discharge electrodes include but are not limited to: strip-shaped blade electrodes, needle electrodes, wire electrodes or mesh electrodes; 0.05-20μm, blade spacing 4cm.

In this embodiment, the environmental data collection unit includes a positioning component, a meteorological data collection component, a wireless data transmission component, a multi-data center monitoring component, and a power supply;

The positioning component locates the position of the sowing operation area in real time; the meteorological data acquisition component includes a particle size spectrometer for collecting the particle size of cloud droplets, an ion concentration counter and a meteorological data acquisition instrument, among which the meteorological data acquisition instrument is used for collecting wind speed and direction, temperature Humidity, atmospheric pressure, cloud height H, cloud thickness h and cloud width d). As shown in Figure 4, it is a schematic diagram of the sowing operation of a single aircraft. The cloud height H, cloud thickness h, and cloud width d (i in the figure represents the i-th aircraft) are all obtained by the meteorological data acquisition component. The wireless data transmission component transmits the collected cloud layer meteorological data and the voltage or current output by the high-voltage DC power supply to the central control unit of the ground fleet. The multi-data center monitoring component can save the historical data of each environmental operation, and update and synchronize the data in real time, which is convenient for remote monitoring and analysis on the ground. The power supply supplies power for the positioning component, the meteorological data collection component, the wireless data transmission component and the multi-data center monitoring component respectively.

The present invention also provides a method for catalyzing artificial rain and snow based on aircraft clusters sowing charged particles, which mainly includes the following steps:

Charged particles are generated by electric discharge, which are scattered into the cloud by the fleet of aircraft;

Collect the meteorological parameters and location information of the cloud layer in the aircraft cluster sowing operation area; among them, the meteorological parameters of the cloud layer mainly include: cloud droplet particle size, cloud droplet concentration, wind speed and direction, temperature and humidity, atmospheric pressure, cloud layer height, thickness and width;

According to the collected cloud droplet size, control the fleet of aircraft to realize the high-altitude sowing operation of small circulation in the cloud and large circulation between clouds;

Specifically, the process of controlling the fleet of aircraft according to the collected cloud droplet size to realize the high-altitude sowing operation of small circulation within clouds and large circulation between clouds includes:

Compare the collected cloud droplet average particle size R in different cloud layers with the preset cloud droplet particle size threshold R _T , and when the cloud droplet average particle size R in the cloud layer is smaller than the threshold value R _T , control the corresponding aircraft in the cloud layer Carry out small cycle high-altitude sowing operations in the cloud, generate a large number of positive and negative charged particles through discharge and spread them into the cloud layer where the aircraft is located, induce cloud droplet collision growth and trigger rainfall;

When the average particle size R of cloud droplets in at least one cloud layer approaches the threshold value R _T (that is, R is equal to the threshold value R _T within the set error range), the aircraft is controlled to carry out high-altitude sowing operations in the large cycle between clouds, and the charged particles are spread Increase the number of condensation nuclei, and at the same time create a speed difference between cloud droplets with different particle sizes in the cloud layer or in the cloud layer, and improve the collision efficiency between cloud droplets to accelerate the growth of cloud droplets;

When the average particle size R of cloud droplets in the cloud layer is greater than the threshold R _T , that is, when there is obvious precipitation in the operation area, the small cycle in the cloud corresponding to the cloud layer is ended; and when the average particle size R of cloud droplets in all cloud layers is within the set value There is no significant drop within the time period, that is, when the precipitation continues in the operation area, the large cycle between the cluster clouds will be ended, otherwise the small cycle within the cluster cloud will be restarted.

When carrying out the small cycle in the cloud, it also includes the steps of: adjusting the discharge voltage or discharge current of the high-voltage DC power supply in the charged particle generating unit, and the operation of the aircraft in the cloud according to the meteorological data of the cloud layer and the concentration distribution of charged particles scattered in the cloud position, so that the concentration of particles in the entire cloud layer is maintained at a high and balanced state, ensuring efficient operation.

The charged particles spread by the aircraft cluster include positively charged particles and negatively charged particles, and the positively charged particles and negatively charged particles are respectively symmetrically spread on both sides of the aircraft;

Or the positively charged particles and the negatively charged particles are respectively spread on the head and tail of the aircraft.

In the present invention, the small circulation in the cloud is first carried out by the aircraft fleet, and the charged particles are spread to induce the collision and growth of cloud droplets to trigger rainfall. When the average particle size of the cloud droplets in the cloud layer approaches the set threshold, the large circulation between the clouds of the aircraft is started, and the charged particles are broadcast. Increase the number of condensation nuclei, and at the same time cause a speed difference between cloud droplets or cloud droplets with different particle sizes in the cloud layer, improve the collision efficiency between cloud droplets to accelerate the growth of cloud droplets, and when there is obvious precipitation in the operation area, stop the small cloud in the operation area Circulation, and when precipitation continues in all operating areas, end the large cycle between the cluster clouds, otherwise restart the small cycle within the cluster cloud, so as to ensure that the operation area will continue to rain and snow, and the effect of rain and snow can be guaranteed. At the same time, because it is a high-altitude sowing operation of the aircraft fleet, the charged particles are directly spread to the cloud layer, the action position is precise and efficient, and it can be moved to any area for rain and snow. The operation is flexible and convenient, and it can easily achieve a large-scale effect of more than 10km.

The method for catalyzing artificial rain and snow by sowing charged particles provided by the present invention can promote water vapor condensation and cloud droplet growth in the cloud layer, and reduce the requirement on weather window conditions.

Positive and negative polarity charged particles are sown on both sides of the aircraft respectively. The large and small cycles facilitate polarity neutralization without destroying the original polarity of the cloud layer and producing no additional harmful substances. It is environmentally friendly and has considerable economic benefits.

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (8)

1. Based on aircraft crowd broadcast charged particle catalysis artificial rainfall snow device, its characterized in that includes: an aircraft cluster, a charged particle generation unit, an environment data acquisition unit and a cluster central control unit which are mounted on the aircraft;

the charged particle generation unit is used for generating charged particles through discharge for aerial vehicle cluster high-altitude sowing;

the environment data acquisition unit is used for acquiring cloud layer weather parameters in the sowing area of the aircraft cluster;

the central control unit of the cluster is used for controlling the average particle size R of cloud drops of different cloud layers in cloud layer meteorological parameters and a preset threshold value R of the particle size of the cloud drops _T In comparison, when the average particle diameter R of the cloud drops is smaller than the threshold value R _T When the cloud layer is used, controlling the corresponding aircrafts in the cloud layer to perform small-cycle high-altitude sowing operation in the cloud layer;

when the average particle diameter R of the cloud drops in at least one cloud layer approaches the threshold value R _T When the cloud-to-cloud large-cycle high-altitude sowing operation is performed by the aircraft, so that the number of condensation nuclei is increased, and meanwhile, speed difference is generated among cloud layers or among cloud drops with different particle sizes in the cloud layers;

when the average particle diameter R of the cloud drops in the cloud layer is larger than the threshold value R _T Ending the intra-cloud small cycle corresponding to the cloud layer; and when the average particle diameter R of the cloud drops in all cloud layers does not drop in the set time and the set error, ending the large circulation among the cloud of the cluster, otherwise restarting the small circulation in the cloud of the cluster;

the aircraft cluster is also used for regulating and controlling the discharge voltage or discharge current of the charged particle generation unit according to the cloud layer meteorological parameters and the concentration distribution of charged particles scattered in the cloud in the process of small circulation in the cloud of the aircraft cluster so as to maintain the concentration of the particles in the cloud layer in a required concentration state;

the cloud small circulation is the operation that different aircrafts circulate in the corresponding cloud layers, and the cloud large circulation is the operation that a plurality of aircrafts circulate in the different cloud layers.

2. The device according to claim 1, characterized in that the charged particle generating unit comprises a particle generator (6), a high voltage direct current power supply (5) and a cable (4); the particle generator (6) is electrically connected with the output end of the high-voltage direct-current power supply (5) through the cable (4).

3. The device according to claim 2, wherein the particle generator (6) comprises a plurality of discharge electrodes (1), an insulator (2) and an insulating frame (3), and the plurality of discharge electrodes (1) are connected in series through the insulator (2) and embedded on the insulating frame (3).

4. The apparatus of claim 3, wherein the particle generator comprises a first particle generator and a second particle generator, the high voltage dc power source comprises a positive polarity high voltage dc power source and a negative polarity high voltage dc power source, the first particle generator is electrically connected to the positive polarity high voltage dc power source through a cable, the second particle generator is electrically connected to the negative polarity high voltage dc power source through a cable, and the first particle generator and the second particle generator are disposed symmetrically on the aircraft.

5. The apparatus of claim 4, wherein the first and second particle generators are disposed within an aircraft cabin and are side-to-side symmetric;

or the first particle generator and the second particle generator are arranged in the cabin of the aircraft and are symmetrical in head and tail;

or the first particle generator and the second particle generator are symmetrically arranged on two sides of the wing of the aircraft.

6. The device of any one of claims 3-5, wherein the discharge electrode is an elongated blade electrode, a needle electrode, a wire electrode, or a mesh electrode.

7. A method for catalyzing an artificial snowfall device based on the sowing of charged particles by an aircraft fleet according to any one of claims 1-6, comprising:

generating charged particles through discharge for aerial vehicle clusters to scatter in high altitude;

collecting cloud layer meteorological parameters in a sowing area of an aircraft cluster;

the average particle diameter R of cloud drops of different cloud layers in cloud layer weather parameters and a preset threshold value R of the particle diameter of the cloud drops are obtained _T In comparison, when the average particle diameter R of the cloud drops is smaller than the threshold value R _T When the cloud layer is used, controlling the corresponding aircrafts in the cloud layer to perform small-cycle high-altitude sowing operation in the cloud layer;

when the average particle diameter R of the cloud drops in at least one cloud layer approaches the threshold value R _T When the cloud-to-cloud large-cycle high-altitude sowing operation is performed by the aircraft, so that the number of condensation nuclei is increased, and meanwhile, speed difference is generated among cloud layers or among cloud drops with different particle sizes in the cloud layers;

when the average particle diameter R of the cloud drops in the cloud layer is larger than the threshold value R _T Ending the intra-cloud small cycle corresponding to the cloud layer; and when the average particle diameter R of the cloud drops in all cloud layers does not drop in the set time and the set error, ending the large circulation among the cloud of the cluster, otherwise restarting the small circulation in the cloud of the cluster;

further comprises: in the process of small circulation in the cloud of the cluster, according to the cloud layer meteorological parameters and the concentration distribution of charged particles scattered in the cloud, regulating and controlling discharge voltage or discharge current to maintain the concentration of the particles in the cloud layer in a required concentration state;

the cloud small circulation is the operation that different aircrafts circulate in the corresponding cloud layers, and the cloud large circulation is the operation that a plurality of aircrafts circulate in the different cloud layers.

8. The method of claim 7, wherein the charged particles broadcast by the fleet of aircraft comprise positively charged particles and negatively charged particles, the positively charged particles and the negatively charged particles being broadcast symmetrically on either side of the aircraft;

or the positive charged particles and the negative charged particles are respectively scattered at the head and the tail of the aircraft.

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