CN117016270A - Liquid nitrogen sowing control system of rain-increasing airplane - Google Patents
Liquid nitrogen sowing control system of rain-increasing airplane Download PDFInfo
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- CN117016270A CN117016270A CN202311059198.6A CN202311059198A CN117016270A CN 117016270 A CN117016270 A CN 117016270A CN 202311059198 A CN202311059198 A CN 202311059198A CN 117016270 A CN117016270 A CN 117016270A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 446
- 239000007788 liquid Substances 0.000 title claims abstract description 229
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 223
- 238000009331 sowing Methods 0.000 title claims abstract description 94
- 230000003993 interaction Effects 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims abstract description 15
- 238000006555 catalytic reaction Methods 0.000 claims description 39
- 239000002245 particle Substances 0.000 claims description 18
- 239000013078 crystal Substances 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 7
- 230000007480 spreading Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000001965 increasing effect Effects 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G15/00—Devices or methods for influencing weather conditions
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- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Environmental Sciences (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The application provides a liquid nitrogen sowing control system of a rain-increasing airplane, which belongs to the technical field of artificial rain increase, and a specific display control computer obtains sensor data of each liquid nitrogen tank through a bus to obtain a pressure value and a liquid nitrogen allowance; the display control computer calculates the average sowing rate through the allowance; the pressure change graph of the liquid nitrogen storage tank and the change graph of the average liquid nitrogen sowing speed are displayed in real time through the human-computer interaction interface, weather staff are assisted to control sowing operation, calculate sowing quantity and analyze the rain increasing catalytic effect. The control decision method can reflect the current liquid nitrogen sowing condition, realize the purpose of sowing liquid nitrogen and condensing the air to increase the rain, and effectively improve the efficiency of artificially influencing the weather.
Description
Technical Field
The application relates to the field of artificial precipitation, in particular to a liquid nitrogen scattering control system of a precipitation-increasing airplane.
Background
At present, the technology of artificial precipitation is widely used, and can change weather towards a preset direction of human beings, so that weather disasters are avoided or alleviated, namely, weather staff put forward a comprehensive scheme of catalytic operation, including catalyst types, catalytic time, catalytic areas and the like, based on atmospheric environment and cloud physical observation information as professional criteria, and air operation equipment is used for sowing the catalyst on cloud layers to realize precipitation.
The application of the cold cloud catalyst is an important technology for artificially influencing weather, and the principle is that a proper amount of refrigerant or artificial ice cores are put into the cold cloud with the temperature lower than 0 ℃ so that the cold cloud generates a certain amount of ice crystals, thereby achieving the effect of precipitation. In cold cloud catalysis, dry ice and liquid nitrogen are effective catalysts, but dry ice has limitations in transportation and storage of an aircraft, so that liquid nitrogen is widely used in the technology of rain enhancement of the aircraft. Wherein, the liquid nitrogen has low vaporization temperature, stable nucleation rate and low cost and is easy to prepare. Because nitrogen occupies a great proportion in the air, liquid nitrogen is an economic and environment-friendly catalyst. The flow control and actual spreading amount of liquid nitrogen also influence the rain forming process and the precipitation range, but in the prior art, weather staff can only obtain the surplus percentage in the liquid nitrogen storage tank, and cannot obtain accurate spreading amount in real time.
Disclosure of Invention
In view of the above, the application provides a liquid nitrogen sowing control system of a rain-increasing airplane, which solves the problems in the prior art, and weather staff can grasp the actual liquid nitrogen sowing condition in time and can better analyze the rain-increasing effect according to the actual weather data of the current area.
The application provides a liquid nitrogen sowing control system of a rain-increasing airplane, which adopts the following technical scheme:
the liquid nitrogen sowing control system of the rain-increasing airplane comprises a liquid nitrogen tank, a display control computer responsible for man-machine interaction and a liquid nitrogen controller, wherein the display control computer is communicated with the liquid nitrogen controller through a serial port, the liquid nitrogen controller is connected with a plurality of liquid nitrogen tanks, and the liquid nitrogen controller uploads state data, pressure data and residual data of the liquid nitrogen tanks to the display control computer through sensors;
the display control computer sends an operation instruction to the liquid nitrogen controller for controlling the liquid nitrogen controller, and the liquid nitrogen controller receives the operation instruction and then controls the broadcasting state of the liquid nitrogen tank;
the software configuration of the display control computer comprises a main module responsible for a man-machine interaction interface and a liquid nitrogen broadcasting submodule for processing information of a liquid nitrogen controller, wherein the main module and the liquid nitrogen broadcasting submodule interact through Ethernet, the main module transmits an operation instruction to the liquid nitrogen broadcasting submodule, the liquid nitrogen broadcasting submodule receives the instruction of the main module and transmits the instruction to the liquid nitrogen controller, and the liquid nitrogen controller receives the operation instruction and then controls the broadcasting state of a liquid nitrogen tank, receives the response of the liquid nitrogen controller and transmits the response to the main module for state display.
Optionally, a graph of the average liquid nitrogen sowing speed changing with time is displayed on the man-machine interaction interface of the main module.
Optionally, the liquid nitrogen scattering submodule calculates an average scattering rate by combining the volume of the liquid nitrogen storage tank, the time difference and the residual quantity difference, the average rate=the liquid level change/the liquid level change time, and the liquid nitrogen scattering submodule feeds back the average rate point to the main module and displays the average rate on the interface in a form of a graph.
Optionally, a graph of a time-varying pressure value of each liquid nitrogen tank is displayed on a man-machine interaction interface of the main module, the liquid nitrogen sowing sub-module periodically inquires the liquid nitrogen controller to obtain a current pressure value of each liquid nitrogen tank, and periodically feeds back the pressure value of each liquid nitrogen tank to the main module, and the man-machine interaction interface of the main module intuitively reflects the pressure variation of each liquid nitrogen tank by using four curves with different colors.
Optionally, the man-machine interaction interface of the main module is provided with a pressure meeting status lamp which indicates whether the current pressure can allow the implementation of liquid nitrogen sowing, the liquid nitrogen sowing submodule periodically inquires the pressure status of all liquid nitrogen tanks, if the current pressure is met by the liquid nitrogen controller, the liquid nitrogen sowing submodule uploads a message to the main module, the pressure meeting status lamp of the main module is green, and weather staff is informed that liquid nitrogen can be sown; if the liquid nitrogen controller replies that the current pressure is not met, the broadcasting submodule uploads the message to the main module, and the pressure meeting status lamp of the main module is red, so that weather staff is informed that liquid nitrogen cannot be broadcasted.
Optionally, the background of the display control computer forms a broadcasting log record after each broadcasting operation is completed, the record is named by the year, month and day and the starting time of the main module, and the specific content of the log record comprises the type of the catalyst, the broadcasting time, the stopping time and the broadcasting quantity.
Optionally, the man-machine interaction interface of the main module comprises a liquid nitrogen sowing sub-interface and a setting maintenance sub-interface;
the liquid nitrogen sowing sub-interface displays a recommended catalysis scheme, and displays the current optimal sowing rate of liquid nitrogen and the current catalysis level to operators, wherein the displayed optimal sowing rate of liquid nitrogen comprises one of fast, medium and slow, and the catalysis level comprises excellent, good, medium, low and none;
the setting maintenance sub-interface displays a cold cloud catalysis condition criterion configuration table, a weather person inputs matching ratios of cloud particle number concentration and ice crystal number concentration under different catalysis levels in the cold cloud catalysis condition criterion configuration table, and then inputs proper liquid nitrogen sowing rates under different catalysis levels;
the display control computer acquires the environmental temperature of the comprehensive meteorological measurement system of the aircraft, if the environmental temperature is higher than 0 ℃, liquid nitrogen is not suitable for being sown, and the recommended catalysis scheme of the liquid nitrogen sowing interface displays the sowing rate of 0; if the temperature is lower than 0 ℃, the display control computer acquires the cloud particle number concentration and the water content, and when the cloud particle number concentration is higher than 0.5 or the water content is higher than 0.001, the current environment meets the cold cloud condition, and the liquid nitrogen sowing machine is suitable for liquid nitrogen sowing; when the cold cloud condition is met, the display control computer acquires the ice crystal number concentration, automatically compares the cloud particle number concentration and the ice crystal number concentration with concentration information in a cold cloud catalysis condition criterion configuration table input by a weather person, decides out the current catalysis grade, and automatically displays the catalysis grade and the optimal sowing rate on a liquid nitrogen interface.
In summary, the application has the following beneficial technical effects:
the liquid nitrogen sowing, stopping and speed rate on the machine are controlled in a man-machine interaction mode; the liquid nitrogen sowing average speed change chart is displayed in real time through a simple algorithm, and calculation conditions are provided for weather personnel to obtain the real sowing quantity. The main module of the display control computer displays a pressure value change chart of each liquid nitrogen tank in real time, so that weather staff can grasp liquid nitrogen sowing conditions conveniently, and the influence of liquid nitrogen pressure on the rain increasing effect is analyzed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a liquid nitrogen scattering control system of the rain-increasing airplane.
Detailed Description
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The embodiment of the application provides a liquid nitrogen sowing control system of a rain-increasing airplane.
As shown in FIG. 1, the liquid nitrogen sowing control system of the rain-increasing airplane comprises a liquid nitrogen tank, a display control computer responsible for man-machine interaction and a liquid nitrogen controller, wherein the display control computer is communicated with the liquid nitrogen controller through an RS-485 serial port, the liquid nitrogen controller is connected with a plurality of liquid nitrogen tanks, and the liquid nitrogen controller uploads state data, pressure data and residual data of the liquid nitrogen tanks to the display control computer through sensors;
the display control computer sends an operation instruction to the liquid nitrogen controller for controlling the liquid nitrogen controller, and the liquid nitrogen controller receives the operation instruction and then controls the broadcasting state of the liquid nitrogen tank;
the software configuration of the display control computer comprises a main module responsible for a man-machine interaction interface and a liquid nitrogen sowing sub-module for processing information of a liquid nitrogen controller, wherein the main module and the liquid nitrogen sowing sub-module are interacted through Ethernet, the liquid nitrogen sowing sub-module receives heartbeat frames of the main module every second to confirm the running state of the main module, if the sub-module can not receive the heartbeat frames of the main module, the main module automatically exits, the main module inquires the running state of the sub-module in a task manager every minute, and if the progress of the sub-module is not found, the sub-module is restarted, so that the communication between the two modules is ensured to be normal. The method comprises the steps that a weather person operates a liquid nitrogen controller on a main module interface, the main module sends an operation instruction to a liquid nitrogen sowing submodule, the liquid nitrogen sowing submodule receives the instruction of the main module and transmits the instruction to the liquid nitrogen controller, and the liquid nitrogen controller receives the operation instruction and then controls the sowing state of a liquid nitrogen tank, receives the response of the liquid nitrogen controller and transmits the response to the main module to display the state.
The specific operation instructions comprise a start sowing instruction, a stop sowing instruction and a speed control instruction, and three speed gears corresponding to a sowing button, a stop button, a fast speed gear, a medium speed gear and a slow speed gear on the main module interface are used for direct operation of a user. The liquid nitrogen sowing submodule automatically and periodically issues a controller state query command, a query pressure meeting command, a query first tank allowance command, a query second tank allowance command, a query third tank allowance command, a query fourth tank allowance command, a query first tank pressure command, a query second tank pressure command, a query third tank pressure command and a query fourth tank pressure command to the liquid nitrogen controller. The responses of the liquid nitrogen controller comprise broadcasting responses, stopping responses, speed responses, pressure state responses of whether broadcasting conditions are met, pressure value responses of all liquid nitrogen tanks, residual value responses of all liquid nitrogen tanks and fault information.
And displaying a graph of the average liquid nitrogen sowing speed changing along with time on a man-machine interaction interface of the main module.
The liquid nitrogen scattering submodule calculates average scattering rate by combining the volume of the liquid nitrogen storage tank, the time difference and the residual quantity difference, the average rate=liquid level change/liquid level change time, and the liquid nitrogen scattering submodule feeds back the average rate point to the main module and displays the average rate on an interface in a graph mode.
The liquid nitrogen sowing submodule periodically inquires a liquid nitrogen controller to obtain the current pressure value of each liquid nitrogen tank and periodically feeds back the pressure value of each liquid nitrogen tank to the main module, and the human-computer interaction interface of the main module intuitively reflects the pressure change of each liquid nitrogen tank by using four curves with different colors.
The man-machine interaction interface of the main module is provided with a pressure meeting status lamp which indicates whether the current pressure can allow the implementation of liquid nitrogen sowing, the liquid nitrogen sowing submodule periodically inquires the pressure status of all liquid nitrogen tanks, and if the liquid nitrogen controller replies that the current pressure is met, the liquid nitrogen sowing submodule uploads a message to the main module, the pressure meeting status lamp of the main module is green and informs weather personnel that liquid nitrogen can be sowed; if the liquid nitrogen controller replies that the current pressure is not met, the broadcasting submodule uploads the message to the main module, and the pressure meeting status lamp of the main module is red, so that weather staff is informed that liquid nitrogen cannot be broadcasted.
After the liquid nitrogen sowing submodule inquires whether the pressure state is met, the liquid nitrogen controller is periodically inquired about the pressure values of the four tanks, and the response of the pressure values is received in real time. And the sub-module feeds back the pressure values of the liquid nitrogen tanks to the main module every second after analyzing and integrating the pressure values, and the main module draws a curve. The x-axis of the graph is time (mm: ss), the y-axis is pressure (-0.01 MPa-0.2 MPa), the pressures of the liquid nitrogen tanks are distinguished by different colors, the pressure change of the liquid nitrogen tanks can be intuitively and truly displayed on a display control computer interface, and the influence of the current pressure, the sowing quantity and the catalysis effect can be analyzed by weather staff. Because the speed of the liquid nitrogen sowing interface is used for uniformly controlling all liquid nitrogen tanks, when the interface displays that the pressure value of a certain tank is abnormal (overpressure or pressure is too small), the valve of the liquid nitrogen tank can be manually controlled to control the pressure, and then the sowing speed and sowing quantity of the certain tank are controlled.
Although the speed control has three gears of fast (6L/min), medium (4L/min) and slow (2L/min), the average speed sum of the four liquid nitrogen tanks is more beneficial to calculating the liquid nitrogen sowing amount because the four tanks can be sown at the same time. When a weather person starts to spread liquid nitrogen, the main module interface displays an average spreading rate curve of the liquid nitrogen tank in real time, wherein the x-axis of the curve graph is time (mm: ss), and the y-axis is spreading rate (0L/min-10L/min). The liquid nitrogen sowing submodule periodically inquires the liquid nitrogen controller of the allowance of each tank. If the submodule detects the residual variation of the n-number liquid nitrogen tanks, the submodule automatically calculates the total average speed of all the liquid nitrogen tanks, and calculates the speed of each liquid nitrogen tank at the current moment first:
rate, i.e. the ratio of the residual difference to the time difference (min), where T 2n And T 1n L is the current time and the time of the last period 2n And L 1n The residual percentage of the n-number tank at the current moment and the residual percentage of the n-number tank in the last period are L Total (S) Is the volume (unit is liter) of the liquid nitrogen tank, V n Is the n tank rate. Then the average total rate of seeding at the current time is the sum of the rates of the four liquid nitrogen tanks:
V total (S) ＝V 1 +V 2 +V 3 +V 4
The liquid nitrogen sowing submodule feeds the speed point back to the main module to draw a graph. And if the surplus is unchanged, the speed of the liquid nitrogen tank at the current moment is consistent with the speed of the liquid nitrogen tank at the last moment.
After the aircraft takes off, the meteorological personnel starts a task system, and the liquid nitrogen sowing submodule actively handshakes with the liquid nitrogen controller and inquires the residual quantity of each liquid nitrogen tank, obtains the state of the initial controller and the initial residual quantity, and sends the state and the initial residual quantity to the main module of the human-computer interaction interface for display. If the liquid nitrogen controller status lamp of the main module interface is green, the controller status is normal, if the liquid nitrogen controller status lamp is red, the liquid nitrogen controller status lamp is not communicated or has faults, and specific fault information (overpressure alarm, nozzle blockage and power overload) can be displayed below the status lamp. The initial margin will be displayed at the main module interface as a percentage of the liquid nitrogen storage tank volume.
The background of the display control computer forms a broadcasting log record after each broadcasting operation is completed, the record is named by the year, month and day and the starting time of the main module, and the specific content of the log record comprises the type of the catalyst (liquid nitrogen), the broadcasting time (hh: mm: ss), the stopping time (hh: mm: ss) and the broadcasting quantity (volume percentage). According to the record, weather staff can calculate the actual liquid nitrogen broadcasting amount by combining with the average broadcasting rate curve chart, and then can evaluate the influence of the liquid nitrogen state and flow control on the artificial precipitation by combining with the pressure change, thereby being beneficial to better completing the task of the personnel image operation in the future.
The man-machine interaction interface of the main module comprises a liquid nitrogen sowing sub-interface and a setting maintenance sub-interface;
the liquid nitrogen sowing sub-interface displays a recommended catalysis scheme, and displays the current optimal sowing rate of liquid nitrogen and the current catalysis level to operators, wherein the displayed optimal sowing rate of liquid nitrogen comprises one of fast, medium and slow, and the catalysis level comprises excellent, good, medium, low and none;
the setting maintenance sub-interface displays a cold cloud catalysis condition criterion configuration table, a weather person inputs matching ratios of cloud particle number concentration and ice crystal number concentration under different catalysis levels in the cold cloud catalysis condition criterion configuration table, and then inputs proper liquid nitrogen sowing rates under different catalysis levels;
the display control computer acquires the environmental temperature of the comprehensive meteorological measurement system of the aircraft, if the environmental temperature is higher than 0 ℃, liquid nitrogen is not suitable for being sown, and the recommended catalysis scheme of the liquid nitrogen sowing interface displays the sowing rate of 0; if the temperature is lower than 0 ℃, the display control computer acquires the cloud particle number concentration and the water content, and when the cloud particle number concentration is higher than 0.5 or the water content is higher than 0.001, the current environment meets the cold cloud condition, and the liquid nitrogen sowing machine is suitable for liquid nitrogen sowing; when the cold cloud condition is met, the display control computer acquires the ice crystal number concentration, automatically compares the cloud particle number concentration and the ice crystal number concentration with concentration information in a cold cloud catalysis condition criterion configuration table input by a weather person, decides out the current catalysis grade, and automatically displays the catalysis grade and the optimal sowing rate on a liquid nitrogen interface.
Specifically, the meteorological data collected by each meteorological probe can be uploaded to a display control computer through Ethernet, and the meteorological probes comprise an aircraft integrated meteorological measurement system (AI MMS), a Yun Lizi spectrum probe (CDP), a Fast Cloud Drop Probe (FCDP) and a liquid water content meter (LWC). When the rain-increasing operation is ready to start, weather personnel need to input matching ratios of cloud particle number concentration and ice crystal number concentration under different catalytic grades in a cold cloud catalytic condition criterion configuration table, then input proper liquid nitrogen sowing rate under different catalytic grades, finally click a determination button under the cold cloud catalytic condition criterion configuration of a maintenance interface, and a display control computer actively acquires the environmental temperature of AI MMS, if the environmental temperature is higher than 0 ℃, the environmental temperature is not suitable for sowing liquid nitrogen, and a recommended catalytic scheme of the liquid nitrogen sowing interface displays sowing rate 0; if the temperature is less than 0 ℃, the display control computer actively acquires the cloud particle number concentration and the water content, the cloud particle number concentration is CDP, and if the CDP fails, FCDP is selected next time. The water content data is preferably CDP, and if CDP fails, LWC is sub-selected. When the cloud particle number concentration is more than 0.5 or the water content is more than 0.001, the current environment meets the cold cloud condition, and the liquid nitrogen sowing method is suitable for liquid nitrogen sowing.
When the cold cloud condition is met, the display control computer acquires the ice crystal number concentration of the weather probe, acquires the probe priority of the ice crystal number concentration and the cloud particle number concentration, automatically compares the cloud particle number concentration and the ice crystal number concentration with concentration information in a cold cloud catalysis condition criterion configuration table input by weather staff, and decides the current catalysis grade. The catalysis grade and the optimal sowing rate are automatically displayed on a liquid nitrogen interface, and weather personnel can operate according to a catalysis scheme. The system embodies high automation of the rain-increasing operation, the display control computer acquires meteorological data, an optimal operation scheme is decided, and a manual decision operation scheme of a meteorological person is not needed.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (7)
1. The liquid nitrogen sowing control system of the rain-increasing airplane is characterized by comprising a liquid nitrogen tank, a display control computer responsible for man-machine interaction and a liquid nitrogen controller, wherein the display control computer is communicated with the liquid nitrogen controller through a serial port, the liquid nitrogen controller is connected with a plurality of liquid nitrogen tanks, and the liquid nitrogen controller uploads state data, pressure data and residual data of the liquid nitrogen tanks to the display control computer through sensors;
the display control computer sends an operation instruction to the liquid nitrogen controller for controlling the liquid nitrogen controller, and the liquid nitrogen controller receives the operation instruction and then controls the broadcasting state of the liquid nitrogen tank;
the software configuration of the display control computer comprises a main module responsible for a man-machine interaction interface and a liquid nitrogen broadcasting submodule for processing information of a liquid nitrogen controller, wherein the main module and the liquid nitrogen broadcasting submodule interact through Ethernet, the main module transmits an operation instruction to the liquid nitrogen broadcasting submodule, the liquid nitrogen broadcasting submodule receives the instruction of the main module and transmits the instruction to the liquid nitrogen controller, and the liquid nitrogen controller receives the operation instruction and then controls the broadcasting state of a liquid nitrogen tank, receives the response of the liquid nitrogen controller and transmits the response to the main module for state display.
2. The system of claim 1, wherein the man-machine interface of the main module displays a graph of average liquid nitrogen spreading rate over time.
3. The liquid nitrogen sowing control system of the rain-increasing aircraft according to claim 1, wherein the liquid nitrogen sowing submodule calculates an average sowing rate by combining the volume of the liquid nitrogen storage tank, the time difference and the margin difference, the average rate=liquid level change/liquid level change time, and the liquid nitrogen sowing submodule feeds back an average rate point to the main module and displays the average rate in a graph form on an interface.
4. The liquid nitrogen sowing control system of the rain-increasing airplane according to claim 3, wherein a graph of the pressure value of each liquid nitrogen tank changing with time is displayed on a man-machine interaction interface of the main module, the liquid nitrogen sowing submodule periodically inquires a liquid nitrogen controller to obtain the current pressure value of each liquid nitrogen tank, the pressure value of each liquid nitrogen tank is periodically fed back to the main module, and the man-machine interaction interface of the main module intuitively reflects the pressure change of each liquid nitrogen tank by four curves with different colors.
5. The liquid nitrogen broadcasting control system of the rain-increasing airplane according to claim 1, wherein a pressure-meeting status lamp is arranged on a man-machine interaction interface of the main module, and indicates whether the current pressure can allow liquid nitrogen broadcasting, the liquid nitrogen broadcasting submodule periodically inquires the pressure states of all liquid nitrogen tanks, and if the current pressure is met by the liquid nitrogen controller, the liquid nitrogen broadcasting submodule uploads a message to the main module, the pressure-meeting status lamp of the main module is green, and informs weather personnel that liquid nitrogen can be broadcasted; if the liquid nitrogen controller replies that the current pressure is not met, the broadcasting submodule uploads the message to the main module, and the pressure meeting status lamp of the main module is red, so that weather staff is informed that liquid nitrogen cannot be broadcasted.
6. The liquid nitrogen dispensing control system of the rain-increasing airplane according to claim 1, wherein the background of the display control computer forms a dispensing log record after each dispensing operation is completed, the record is named by the year, month and day and the starting time of the main module, and the specific content of the log record comprises the type of the catalyst, the dispensing time, the stopping time and the dispensing amount.
7. The rain-increasing airplane liquid nitrogen sowing control system according to claim 1, wherein the man-machine interaction interface of the main module comprises a liquid nitrogen sowing sub-interface and a setting maintenance sub-interface;
the liquid nitrogen sowing sub-interface displays a recommended catalysis scheme, and displays the current optimal sowing rate of liquid nitrogen and the current catalysis level to operators, wherein the displayed optimal sowing rate of liquid nitrogen comprises one of fast, medium and slow, and the catalysis level comprises excellent, good, medium, low and none;
the setting maintenance sub-interface displays a cold cloud catalysis condition criterion configuration table, a weather person inputs matching ratios of cloud particle number concentration and ice crystal number concentration under different catalysis levels in the cold cloud catalysis condition criterion configuration table, and then inputs proper liquid nitrogen sowing rates under different catalysis levels;
the display control computer acquires the environmental temperature of the comprehensive meteorological measurement system of the aircraft, if the environmental temperature is higher than 0 ℃, liquid nitrogen is not suitable for being sown, and the recommended catalysis scheme of the liquid nitrogen sowing interface displays the sowing rate of 0; if the temperature is lower than 0 ℃, the display control computer acquires the cloud particle number concentration and the water content, and when the cloud particle number concentration is higher than 0.5 or the water content is higher than 0.001, the current environment meets the cold cloud condition, and the liquid nitrogen sowing machine is suitable for liquid nitrogen sowing; when the cold cloud condition is met, the display control computer acquires the ice crystal number concentration, automatically compares the cloud particle number concentration and the ice crystal number concentration with concentration information in a cold cloud catalysis condition criterion configuration table input by a weather person, decides out the current catalysis grade, and automatically displays the catalysis grade and the optimal sowing rate on a liquid nitrogen interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311059198.6A CN117016270A (en) | 2023-08-22 | 2023-08-22 | Liquid nitrogen sowing control system of rain-increasing airplane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311059198.6A CN117016270A (en) | 2023-08-22 | 2023-08-22 | Liquid nitrogen sowing control system of rain-increasing airplane |
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| CN117016270A true CN117016270A (en) | 2023-11-10 |
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| CN202311059198.6A Pending CN117016270A (en) | 2023-08-22 | 2023-08-22 | Liquid nitrogen sowing control system of rain-increasing airplane |
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