CN112793782B - Unmanned aerial vehicle-based rain and snow increasing method and system - Google Patents
Unmanned aerial vehicle-based rain and snow increasing method and system Download PDFInfo
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- CN112793782B CN112793782B CN202110050507.8A CN202110050507A CN112793782B CN 112793782 B CN112793782 B CN 112793782B CN 202110050507 A CN202110050507 A CN 202110050507A CN 112793782 B CN112793782 B CN 112793782B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
- B64C39/024—Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2201/00—UAVs characterised by their flight controls
- B64U2201/20—Remote controls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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Abstract
The invention provides a method and a system for increasing rain and snow based on an unmanned aerial vehicle, and belongs to the technical field of meteorological intervention. The method comprises the following steps: starting a radar to monitor sky cloud layers in real time, and determining target cloud layers of an operation area; judging whether to perform the rain and snow increasing operation according to the target cloud layer position and the radar reflectivity factor: if yes, controlling the unmanned aerial vehicle loaded with the silver iodide cigarette bars and the acoustic wave operation device to fly to a target cloud layer of an operation area, and controlling the unmanned aerial vehicle to select a combined operation mode to operate according to radar reflectivity factors in the operation area, and after the operation is finished, flying back to a landing point; otherwise, the radar continues to detect and controls the unmanned aerial vehicle not to take off; the combined operation mode comprises a first operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, a second operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, and a third operation mode of starting the sound wave operation device when igniting the silver iodide cigarette rod. The invention realizes the effect of enhancing weather intervention.
Description
Technical Field
The invention relates to the technical field of meteorological intervention, in particular to a method and a system for increasing rain and snow based on an unmanned aerial vehicle.
Background
The formation of natural rain and snow is a very representative physical state change process, and three requirements are needed in the formation process: water vapor, condensation nucleus and cooling. The water on the ground evaporates to form water vapor, the water vapor rises to the high altitude to accumulate to form clouds, the water vapor is condensed into water drops under the action of condensation nuclei after the temperature is reduced, and the water drops naturally drop to form rainfall after reaching a certain weight; when the temperature is below zero, the snow condensed into a solid state falls under the influence of other meteorological conditions to form snowfall.
The artificial influence weather is that under proper weather conditions, weather process is developed to the direction meeting human wish through meteorological intervention. The existing weather operation means are single, and the single operation condition has certain limits on the droplet coagulation effect and success rate.
The technical method for influencing weather by silver iodide at the present stage mainly comprises the following steps: sowing on the ground, and carrying the seeds into the cloud through air movement; loading a catalyst into a rocket warhead or a high-firing shell and launching the catalyst into a predetermined position in the cloud; the catalyst was directly sown into the cloud with an airplane. However, the existing silver iodide catalyst is used for increasing the snow and rain, so that the problem of aging hysteresis exists.
On the basis of traditional weather operation, novel rain increasing means such as sound wave rain increasing and laser rain increasing are continuously developed, wherein the sound wave rain increasing effect is obvious. The main principle of the acoustic wave rain and snow increasing technology is that the collision and the condensation of small liquid drops in a cloud layer are promoted by emitting low-frequency strong acoustic waves into high air, but the problems of low conversion rate of the small liquid drops and poor weather intervention effect still exist at present.
Disclosure of Invention
The invention provides a method and a system for increasing rain and snow based on an unmanned aerial vehicle, which are used for solving the problems that in the prior art, silver iodide catalysts are adopted for delaying the time effect of increasing the rain and the snow and the effect of sound wave increasing the rain and the snow is poor under the condition of insufficient condensation nucleus quantity, and realizing the effect of enhancing weather intervention.
In one aspect, the invention provides a method for increasing snow and rain based on an unmanned aerial vehicle, comprising the following steps:
starting a radar to monitor sky cloud layers in real time, and determining target cloud layers of an operation area;
judging whether to perform the rain and snow increasing operation according to the target cloud layer position and the radar reflectivity factor: if yes, controlling the unmanned aerial vehicle loaded with the silver iodide cigarette bars and the acoustic wave operation device to fly to a target cloud layer of the operation area, and controlling the unmanned aerial vehicle to select a combined operation mode to operate according to radar reflectivity factors in the operation area, and after the operation is finished, flying back to a landing point; otherwise, the radar continues to detect and controls the unmanned aerial vehicle not to take off;
the combined operation mode comprises a first operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, a second operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, and a third operation mode of starting the sound wave operation device when igniting the silver iodide cigarette rod.
According to the method for increasing rain and snow based on the unmanned aerial vehicle, provided by the invention, the unmanned aerial vehicle is controlled to select a combined operation mode to operate according to the radar reflectivity factor in the operation area, and the method comprises the following steps:
if the radar reflectivity factor is larger than a preset value, controlling the unmanned aerial vehicle to randomly select a first operation mode or a second operation mode for operation;
otherwise, controlling the unmanned aerial vehicle to select the third operation mode for operation.
According to the unmanned aerial vehicle-based rain and snow increasing method provided by the invention, the operation area comprises an operation starting point and an operation route; controlling the unmanned aerial vehicle to select the first operation mode to operate, comprising the following steps:
controlling the unmanned aerial vehicle to take off to an operation starting point of an operation area to ignite a silver iodide cigarette bar;
controlling the unmanned aerial vehicle to fly according to a preset operation route, and after the silver iodide tobacco strips are burnt out, flying back to an operation starting point for igniting the silver iodide tobacco strips;
and controlling the unmanned aerial vehicle to start the acoustic wave operation device, and flying according to the same operation route with the preset setting, wherein the acoustic wave operation device finishes operation after finishing the preset operation time.
According to the unmanned aerial vehicle-based rain and snow increasing method provided by the invention, the operation area comprises an operation starting point and an operation route; controlling the unmanned aerial vehicle to select the second operation mode to operate, comprising the following steps:
controlling the unmanned aerial vehicle to take off to an operation starting point of an operation area to start an acoustic wave operation device;
controlling the unmanned aerial vehicle to fly according to a preset operation route, and after finishing the preset operation time, turning back on an operation starting point of the acoustic operation device;
and controlling the unmanned aerial vehicle to ignite the silver iodide cigarette bars and fly according to the same preset operation route, and ending the operation after the silver iodide cigarette bars are burnt out.
According to the unmanned aerial vehicle-based rain and snow increasing method provided by the invention, the operation area comprises an operation starting point and an operation route; controlling the unmanned aerial vehicle to select the third operation mode for operation, comprising the following steps:
controlling the unmanned aerial vehicle to take off to an operation starting point of the operation area;
controlling the unmanned aerial vehicle to ignite a silver iodide cigarette bar and starting an acoustic wave operation device;
and controlling the unmanned aerial vehicle to fly according to a preset operation route, and ending the operation after finishing the preset operation duration.
According to the unmanned aerial vehicle-based rain and snow increasing method provided by the invention, four silver iodide tobacco strips are respectively mounted below wings on two sides of the unmanned aerial vehicle, and the combustion duration of the silver iodide tobacco strips is determined according to a selected combined operation mode.
According to the rain and snow increasing method based on the unmanned aerial vehicle, the acoustic wave operation device is mounted under the tail wing of the unmanned aerial vehicle, the horn mouth of the acoustic wave operation device is adjustable within the range of 0-90 degrees, and the horn mouth is positioned at the position 45 degrees backward in the flight direction in the operation process.
According to the unmanned aerial vehicle-based snow and rain increasing method provided by the invention, the operation area comprises an operation starting point and an operation route, and the operation route comprises a route long axis direction and a route shape; wherein the operation route is preset;
further comprises: the method comprises the steps that the shape of a flight path is preset in the flight process of operation of the unmanned aerial vehicle, the long axis direction of the flight path is perpendicular to the movement trend direction of the weather process, and the preset operation flight path and the preset operation duration are adjusted according to the spatial distribution of the weather process.
On the other hand, the invention provides a rain and snow increasing system based on an unmanned aerial vehicle, which comprises a radar and the unmanned aerial vehicle, wherein the unmanned aerial vehicle is provided with a silver iodide cigarette bar and a sound wave operation device;
starting a radar to monitor sky cloud layers in real time, and determining target cloud layers of an operation area to judge whether to perform a rain and snow increasing operation or not according to the positions of the target cloud layers and radar reflectivity factors;
if yes, controlling the unmanned aerial vehicle to fly to a target cloud layer of the operation area, and controlling the unmanned aerial vehicle to select a combined operation mode to operate according to a radar reflectivity factor in the operation area, and after the operation is finished, flying back to a landing point; otherwise, the radar continues to detect and controls the unmanned aerial vehicle not to take off;
the combined operation mode comprises a first operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, a second operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, and a third operation mode of starting the sound wave operation device when igniting the silver iodide cigarette rod.
According to the unmanned aerial vehicle-based rain and snow increasing system provided by the invention, four silver iodide tobacco strips are respectively mounted below wings on two sides of the unmanned aerial vehicle, and the combustion duration of the silver iodide tobacco strips is determined according to a selected combined operation mode.
According to the unmanned aerial vehicle-based snow and rain increasing system provided by the invention, the acoustic wave operation device is mounted under the tail wing of the unmanned aerial vehicle, the horn mouth of the acoustic wave operation device is adjustable within the range of 0-90 degrees, and the horn mouth is positioned at the position 45 degrees backward in the flight direction in the operation process.
According to the unmanned aerial vehicle-based snow and rain increasing system provided by the invention, if the radar reflectivity factor is larger than a preset value, the unmanned aerial vehicle is controlled to randomly select a first operation mode or a second operation mode for operation;
and if the radar reflectivity factor is smaller than or equal to a preset value, controlling the unmanned aerial vehicle to select the third operation mode for operation.
According to the unmanned aerial vehicle-based rain and snow increasing method and system, the unmanned aerial vehicle adopts the operation mode that the silver iodide catalyst and the acoustic wave operation device are used in a combined mode, so that the liquid drop conversion rate can be improved, and the technical effect of weather intervention is enhanced.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a method for increasing snow and rain based on an unmanned aerial vehicle;
FIG. 2 is a second flow chart of the unmanned aerial vehicle-based method for increasing snow and rain provided by the invention;
FIG. 3 is a third flow chart of the unmanned aerial vehicle-based method for increasing snow and rain provided by the invention;
FIG. 4 is a flow diagram of a method for enhancing snow and rain based on an unmanned aerial vehicle according to the present invention;
fig. 5 is a schematic structural diagram of the unmanned aerial vehicle-based snow and rain increasing system.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes a method and a system for increasing snow and rain based on unmanned aerial vehicle with reference to fig. 1 to 5.
The invention provides a method for increasing rain and snow based on unmanned aerial vehicle, as shown in figure 1, comprising the following steps:
s1, starting a radar to monitor sky cloud layers in real time, and determining target cloud layers of an operation area;
specifically, before operation, meteorological radar is used for carrying out meteorological observation on a sky cloud layer, an area with a large radar reflectivity factor is determined as an operation area, and the distance between a target cloud layer and a flying point of an unmanned aerial vehicle is determined.
S2, judging whether to perform the rain and snow increasing operation according to the target cloud layer position and the radar reflectivity factor: if yes, controlling the unmanned aerial vehicle loaded with the silver iodide cigarette bars and the acoustic wave operation device to fly to a target cloud layer of the operation area, and controlling the unmanned aerial vehicle to select a combined operation mode to operate according to radar reflectivity factors in the operation area, and after the operation is finished, flying back to a landing point; otherwise, the radar continues to detect and controls the unmanned aerial vehicle not to take off;
specifically, when the unmanned aerial vehicle is prepared before taking off, a silver iodide tobacco rod and a sound wave operation device are arranged. The unmanned aerial vehicle waits for taking off at the take-off point, takes off according to the target cloud layer position detected by the radar, flies to the working area of the target cloud layer, judges the working mode according to actual conditions, starts combined operation, and flies back to the take-off and landing point after the operation is finished. And replacing the silver iodide cigarette rod, the fuel of the sound wave operation device and the fuel of the unmanned aerial vehicle, and preparing for the next operation. If the radar observes weather does not meet the rain (snow) increasing condition, the radar continues to observe the weather, and the aircraft does not take off.
The combined operation mode comprises a first operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, a second operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, and a third operation mode of starting the sound wave operation device when igniting the silver iodide cigarette rod.
Specifically, the operation modes of using the unmanned aerial vehicle to broadcast silver iodide and the sound wave operation device to jointly use are divided into three types, namely: firstly, igniting a silver iodide cigarette bar and then starting sound waves; secondly, starting sound waves and then igniting the silver iodide cigarette bars; third, when igniting the silver iodide cigarette, the sound wave is started at the same time.
Silver iodide has three crystallization modes, wherein hexagonal crystal forms and ice crystals have similar structures and can be used as condensation nuclei. The method of spreading dry ice and silver iodide in the cold cloud is to promote the formation of precipitation when increasing the number of ice crystals in the cloud. The silver iodide catalyst has the advantages of high ice formation threshold and high nucleation rate, and has lattice constant very similar to that of natural ice crystal, and the high temperature can produce high dispersed ice nucleus aerosol particle to raise the ice nucleus number produced by silver iodide unit. In general, the aerosol state in the cloud layer is relatively stable, precipitation is not easy to generate, the stable state is damaged by artificial influence on weather, and the purpose is achieved by sowing a catalyst in the cloud layer with relatively large cloud thickness through a certain means, and in the process, the number of condensation nuclei in the cloud layer is increased, so that the collision and the increase of small water drops are facilitated; secondly, the temperature of the cloud layer is changed, so that disturbance and convection are formed, and the collision and the increase of small water drops are facilitated.
The main principle of the acoustic wave rain and snow increasing technology is that the collision and the condensation of small liquid drops in a cloud layer are promoted by sending low-frequency strong acoustic waves into high air. The basis of acoustic collision-agglomeration and other collision-agglomeration phenomena is the relatively random movement of particles. In acoustic collision-condensation, the acoustic wave field of air interacts with the particles, causing relative movement between the particles. The most basic interaction is that the particles are subjected to viscous stress and drive under the action of an acoustic wave field, i.e. the acoustic wave drives air to produce an oscillatory flow, the fluid acts on the viscous force of the surface and imparts momentum to the particles. The current research shows that the internal mechanism of precipitation of the acoustic wave operation device is that the acoustic wave with certain intensity can increase the relative motion among cloud drops, the low-frequency high-intensity acoustic wave excites the cloud body, so that the cloud body vibrates in a narrow range, the acoustic coalescing mechanisms such as forward effect, mutual radiation pressure effect, acoustic awakening effect and the like exacerbate the relative motion of the cloud drops, the probability of collision and fusion among particles is increased, the collision-condensation of water vapor is accelerated, the particle size of the raindrops is rapidly increased, and precipitation is initiated.
Compared with the prior art, the method integrates the advantages of adding condensation nuclei in silver iodide and increasing rain and snow and the advantages of increasing collision of small liquid drops in cloud layers and affecting weather means in the sound wave technology, so that the rain and snow increasing means are more diversified and have more obvious effect.
The invention can properly relax the applicable conditions of weather modification operation by utilizing a combined operation mode. The single unmanned aerial vehicle broadcasting silver iodide precipitation method and the sound wave precipitation method have corresponding limitations in terms of operation conditions, such as: in the acoustic wave rain enhancement method, the acoustic wave is far from a sound source to a target cloud layer position, so that the energy attenuation is serious, the requirements on the sound pressure level of the sound source are very high, and the requirements on the cloud layer height are very strict; the silver iodide rain-increasing method has strict requirements on operation requirements, operation conditions and the like, and has narrower applicable conditions. The operation method of using the unmanned aerial vehicle to mount the silver iodide and the acoustic wave device can properly relax proper conditions which affect weather operation, so that the method is more suitable for weather conditions which do not accord with a single operation mode.
According to the method for increasing rain and snow based on the unmanned aerial vehicle, provided by the invention, the unmanned aerial vehicle is controlled to select a combined operation mode to operate according to the radar reflectivity factor in the operation area, and the method comprises the following steps:
if the radar reflectivity factor is larger than a preset value, controlling the unmanned aerial vehicle to randomly select a first operation mode or a second operation mode for operation;
otherwise, controlling the unmanned aerial vehicle to select the third operation mode for operation.
Specifically, the first two operation modes are selected according to actual conditions, and are suitable for conditions that cloud layers are thick, radar reflectivity factors are large, and a rainfall (snow) process just begins, while the third operation mode is suitable for conditions that radar reflectivity factors are small but rainfall (snow) can occur.
According to the unmanned aerial vehicle-based rain and snow increasing method provided by the invention, the operation area comprises an operation starting point and an operation route; as shown in fig. 2, the unmanned aerial vehicle is controlled to select the first operation mode to perform operation, including the following steps:
201, controlling the unmanned aerial vehicle to take off to an operation starting point of an operation area to ignite a silver iodide cigarette bar;
202, controlling the unmanned aerial vehicle to fly according to a preset operation route, and after the silver iodide tobacco strips are burnt out, flying back to an operation starting point for igniting the silver iodide tobacco strips;
203, controlling the unmanned aerial vehicle to start the acoustic wave operation device, and flying according to the same operation route with the preset setting, wherein the acoustic wave operation device finishes operation after finishing the preset operation time.
Specifically, the combined operation mode one (silver iodide before acoustic wave): after the unmanned aerial vehicle takes off, the unmanned aerial vehicle flies to an operation starting point of an operation area, the silver iodide tobacco rods are ignited, the unmanned aerial vehicle starts to fly according to a preset operation route, after the tobacco rods are burnt, the unmanned aerial vehicle flies back to a tobacco rod ignition point, the sound wave device is started to fly, the flight route is identical to the tobacco rod ignition route, the operation is finished after the sound wave is started for forty minutes, and the unmanned aerial vehicle flies back to a landing point and lands.
According to the invention, by scattering the heated silver iodide, thousands of condensation nuclei are formed by silver iodide ions in the cold cloud, and water vapor is attached to the condensation nuclei to form ice nuclei. The sound wave causes air disturbance, the amplitude of the caused liquid drops is larger than the distance between the liquid drops, adjacent liquid drops are condensed, the grain size of the liquid drops is increased, and finally rainfall is formed.
According to the unmanned aerial vehicle-based rain and snow increasing method provided by the invention, the operation area comprises an operation starting point and an operation route; as shown in fig. 3, the unmanned aerial vehicle is controlled to select the second operation mode to perform operation, including the following steps:
301, controlling the unmanned aerial vehicle to take off to a working starting point of a working area to start an acoustic wave working device;
302, controlling the unmanned aerial vehicle to fly according to a preset operation route, and after finishing a preset operation time length, flying back to start an operation starting point of the acoustic operation device;
303, controlling the unmanned aerial vehicle to ignite the silver iodide cigarette bars, and flying according to the same preset operation route, and ending the operation after the silver iodide cigarette bars are burnt out.
Specifically, joint operation mode two (silver iodide after pre-sound): after the unmanned aerial vehicle takes off, the unmanned aerial vehicle flies to an operation starting point of an operation area, the acoustic wave device is started, the unmanned aerial vehicle flies back to an acoustic wave starting point after forty minutes according to a preset operation route, the flight route of the lighting cigarette is identical to the acoustic wave operation route, the operation is finished after the burning of the cigarette, and the unmanned aerial vehicle flies back to a take-off and landing point and lands.
According to the unmanned aerial vehicle-based rain and snow increasing method provided by the invention, the operation area comprises an operation starting point and an operation route; as shown in fig. 4, the unmanned aerial vehicle is controlled to select the third operation mode to perform operation, including the following steps:
401, controlling the unmanned aerial vehicle to take off to a working starting point of the working area;
402, controlling the unmanned aerial vehicle to ignite a silver iodide cigarette bar and starting an acoustic wave operation device;
403, controlling the unmanned aerial vehicle to fly according to a preset operation route, and ending the operation after finishing the preset operation duration.
Specifically, joint operation mode three (simultaneous operation): the unmanned aerial vehicle flies to the operation starting point of the operation area after taking off, the silver iodide cigarette bars are ignited, the sound wave is started, the unmanned aerial vehicle starts flying according to the operation route which is preset, the operation time is forty minutes, and the unmanned aerial vehicle flies back to the take-off and landing point.
The combined operation mode of the invention improves the liquid drop conversion rate and the artificial influence weather success rate, the single operation condition has a certain limit on the liquid drop coagulation effect and success rate, the combined operation mode increases the probability and effect of liquid drop coagulation, increases the liquid drop conversion rate along with the increase of the effect of liquid drop collision and coagulation, increases the precipitation amount and enhances the effect of artificial influence weather.
According to the unmanned aerial vehicle-based snow and rain increasing method provided by the invention, the operation area comprises an operation starting point and an operation route, and the operation route comprises a route long axis direction and a route shape; wherein the operation route is preset;
further comprises: the method comprises the steps that the shape of a flight path is preset in the flight process of operation of the unmanned aerial vehicle, the long axis direction of the flight path is perpendicular to the movement trend direction of the weather process, and the preset operation flight path and the preset operation duration are adjusted according to the spatial distribution of the weather process.
Specifically, the long axis direction of the unmanned aerial vehicle operation track is perpendicular to the movement trend direction of the weather process in the flight process, the flight turning radius is 1.5-3KM, the unmanned aerial vehicle is adjusted to fly and operate according to the S-shaped flight, the length of time of flight and operation of the unmanned aerial vehicle is adjusted according to the spatial distribution of the weather process, the silver iodide cigarette bars are started to be ignited, and meanwhile the direction of the airborne sound wave operation device is adjusted to be the downward middle-inclined rear of the machine body to start sound wave operation.
The invention provides a rain and snow increasing system based on an unmanned aerial vehicle, which is shown in fig. 5, and comprises a radar 501 and an unmanned aerial vehicle 502, wherein the unmanned aerial vehicle 502 is loaded with a silver iodide cigarette bar and a sound wave operation device;
starting a radar 501 to monitor sky clouds in real time, and determining a target cloud layer of an operation area to judge whether to perform a rain and snow increasing operation or not according to the position of the target cloud layer and a radar reflectivity factor;
if yes, controlling the unmanned aerial vehicle 502 to fly to a target cloud layer of the operation area, and controlling the unmanned aerial vehicle 502 to select a combined operation mode to operate according to a radar reflectivity factor in the operation area, and after the operation is finished, flying back to a landing point; otherwise, the radar continues to detect and controls the unmanned aerial vehicle not to take off;
the combined operation mode comprises a first operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, a second operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, and a third operation mode of starting the sound wave operation device when igniting the silver iodide cigarette rod.
Compared with the prior art, the embodiment of the invention can improve the liquid drop conversion rate and enhance the technical effect of weather intervention by adopting the operation mode that the unmanned aerial vehicle adopts the silver iodide catalyst and the acoustic wave operation device to be used in combination.
According to the unmanned aerial vehicle-based rain and snow increasing system provided by the invention, four silver iodide tobacco strips are respectively mounted below wings on two sides of the unmanned aerial vehicle, the combustion duration of the silver iodide tobacco strips is determined according to a selected combined operation mode, or the ignition quantity of the silver iodide tobacco strips can be increased or reduced according to the operation duration.
Specifically, silver iodide tobacco rod mount: the unmanned aerial vehicle is mounted with eight silver iodide tobacco rods, four silver iodide tobacco rods are hung below the wing respectively, the combustion time of each tobacco rod is about 5min, the silver iodide tobacco rods can be ignited simultaneously or separately, and the ignition duration is determined according to an actual operation mode.
According to the unmanned aerial vehicle-based snow and rain increasing system provided by the invention, the acoustic wave operation device is mounted under the tail wing of the unmanned aerial vehicle, the horn mouth of the acoustic wave operation device is adjustable within the range of 0-90 degrees, and the horn mouth is positioned at the position 45 degrees backward in the flight direction in the operation process, or can be adjusted in real time according to the wind direction, the wind speed, the flight speed of the unmanned aerial vehicle and other factors in the operation process.
Specifically, the sonic working device mounts: the sound wave operation device is mounted under the tail wing of the unmanned aerial vehicle, the horn mouth of the sound wave operation device can be adjusted within the range of 0-90 degrees, and the horn mouth direction is positioned at the position 45 degrees backward in the flight direction in normal operation, so that sound waves directly act on a target cloud layer.
According to the unmanned aerial vehicle-based snow and rain increasing system provided by the invention, if the radar reflectivity factor is larger than a preset value, the unmanned aerial vehicle is controlled to randomly select a first operation mode or a second operation mode for operation;
and if the radar reflectivity factor is smaller than or equal to a preset value, controlling the unmanned aerial vehicle to select the third operation mode for operation.
Specifically, the unmanned aerial vehicle is controlled to select an operation mode according to actual conditions, the first two operation modes are suitable for conditions that cloud layers are thicker, radar reflectivity factors are larger and a rainfall (snow) process just begins, and the third operation mode is suitable for conditions that radar reflectivity factors are smaller and rainfall (snow) can be achieved.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The method for increasing the snow and rain based on the unmanned aerial vehicle is characterized by comprising the following steps of:
starting a radar to monitor sky cloud layers in real time, and determining target cloud layers of an operation area;
judging whether to perform the rain and snow increasing operation according to the target cloud layer position and the radar reflectivity factor: if yes, controlling the unmanned aerial vehicle loaded with the silver iodide cigarette bars and the acoustic wave operation device to fly to a target cloud layer of the operation area, controlling the unmanned aerial vehicle to select a combined operation mode to operate according to the radar reflectivity factor in the operation area, and flying back to a landing point after the operation is finished, wherein controlling the unmanned aerial vehicle to select the combined operation mode to operate according to the radar reflectivity factor in the operation area comprises the following steps: if the radar reflectivity factor is larger than a preset value, controlling the unmanned aerial vehicle to randomly select a first operation mode or a second operation mode for operation; otherwise, controlling the unmanned aerial vehicle to select a third operation mode for operation; otherwise, the radar continues to detect and controls the unmanned aerial vehicle not to take off;
the combined operation mode comprises a first operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, a second operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, and a third operation mode of starting the sound wave operation device when igniting the silver iodide cigarette rod.
2. The unmanned aerial vehicle-based snow and rain method of claim 1, wherein the work area comprises a work start point and a work route;
controlling the unmanned aerial vehicle to select the first operation mode to operate, comprising the following steps:
controlling the unmanned aerial vehicle to take off to an operation starting point of an operation area to ignite a silver iodide cigarette bar;
controlling the unmanned aerial vehicle to fly according to a preset operation route, and after the silver iodide tobacco strips are burnt out, flying back to an operation starting point for igniting the silver iodide tobacco strips;
and controlling the unmanned aerial vehicle to start the acoustic wave operation device, and flying according to the same operation route with the preset setting, wherein the acoustic wave operation device finishes operation after finishing the preset operation time.
3. The unmanned aerial vehicle-based snow and rain method of claim 1, wherein the work area comprises a work start point and a work route;
controlling the unmanned aerial vehicle to select the second operation mode to operate, comprising the following steps:
controlling the unmanned aerial vehicle to take off to an operation starting point of an operation area to start an acoustic wave operation device;
controlling the unmanned aerial vehicle to fly according to a preset operation route, and after finishing the preset operation time, turning back on an operation starting point of the acoustic operation device;
and controlling the unmanned aerial vehicle to ignite the silver iodide cigarette bars and fly according to the same preset operation route, and ending the operation after the silver iodide cigarette bars are burnt out.
4. The unmanned aerial vehicle-based snow and rain method of claim 1, wherein the work area comprises a work start point and a work route;
controlling the unmanned aerial vehicle to select the third operation mode for operation, comprising the following steps:
controlling the unmanned aerial vehicle to take off to an operation starting point of the operation area;
controlling the unmanned aerial vehicle to ignite a silver iodide cigarette bar and starting an acoustic wave operation device;
and controlling the unmanned aerial vehicle to fly according to a preset operation route, and ending the operation after finishing the preset operation duration.
5. The unmanned aerial vehicle-based snowplow method of claim 1, wherein the work area comprises a work start point and a work route, the work route comprising a track long axis direction and a track shape; wherein the operation route is preset;
further comprises: the method comprises the steps that the shape of a flight path is preset in the flight process of operation of the unmanned aerial vehicle, the long axis direction of the flight path is perpendicular to the movement trend direction of the weather process, and the preset operation flight path and the preset operation duration are adjusted according to the spatial distribution of the weather process.
6. The rain and snow increasing system based on the unmanned aerial vehicle is characterized by comprising a radar and the unmanned aerial vehicle, wherein the unmanned aerial vehicle is provided with a silver iodide cigarette bar and a sound wave operation device;
starting a radar to monitor sky cloud layers in real time, and determining target cloud layers of an operation area to judge whether to perform a rain and snow increasing operation or not according to the positions of the target cloud layers and radar reflectivity factors;
if yes, controlling the unmanned aerial vehicle to fly to a target cloud layer of the operation area, controlling the unmanned aerial vehicle to select a combined operation mode to operate according to the radar reflectivity factor in the operation area, and returning to the landing point after the operation is finished, wherein controlling the unmanned aerial vehicle to select the combined operation mode to operate according to the radar reflectivity factor in the operation area, and returning to the landing point after the operation is finished comprises: if the radar reflectivity factor is larger than a preset value, controlling the unmanned aerial vehicle to randomly select a first operation mode or a second operation mode for operation; if the radar reflectivity factor is smaller than or equal to a preset value, controlling the unmanned aerial vehicle to select a third operation mode for operation; otherwise, the radar continues to detect and controls the unmanned aerial vehicle not to take off;
the combined operation mode comprises a first operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, a second operation mode of starting the sound wave operation device after igniting the silver iodide cigarette rod, and a third operation mode of starting the sound wave operation device when igniting the silver iodide cigarette rod.
7. The unmanned aerial vehicle-based snow and rain increasing system according to claim 6, wherein four silver iodide tobacco rods are respectively mounted below wings on two sides of the unmanned aerial vehicle, and the combustion duration of the silver iodide tobacco rods is determined according to the selected combined operation mode.
8. The unmanned aerial vehicle-based snow and rain system of claim 6, wherein an acoustic wave operation device is mounted directly below the tail of the unmanned aerial vehicle, and a horn mouth of the acoustic wave operation device is adjustable within a range of 0 ° -90 °.
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