CN113533835A - Thunder early warning system and method based on thunder and electric field detection technology - Google Patents
Thunder early warning system and method based on thunder and electric field detection technology Download PDFInfo
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Abstract
The invention relates to the technical field of lightning prediction and discloses a lightning early warning system and a lightning early warning method. The lightning early warning system comprises: the lightning positioning device is used for acquiring lightning position data and lightning intensity data of lightning actually generated in a target area; the electric field detection device is used for acquiring atmospheric electric field data of the atmosphere in the target area; and the early warning device is used for determining the comprehensive early warning level of thunder and lightning according to the thunder and lightning position data, the thunder and lightning intensity data and the atmospheric electric field data in the target area and sending out early warning conforming to the comprehensive early warning level. The invention can carry out effective comprehensive directional early warning on the thunder and lightning, thereby greatly reducing the false alarm rate of the thunder and lightning.
Description
Technical Field
The invention relates to the technical field of lightning prediction, in particular to a lightning early warning system and a lightning early warning method.
Background
At present, the lightning early warning technology of a small area mainly adopts an atmospheric electric field instrument which measures the change of an atmospheric electrostatic field, and belongs to the early warning of a non-directional mode. Although the atmospheric electric field instrument can reflect the activity condition of local thunderclouds and rainclouds in real time, the atmospheric electric field instrument lacks intuitiveness and cannot measure the specific direction of lightning, so that the false alarm rate is higher if the lightning early warning is carried out by only utilizing the measurement data of the atmospheric electric field instrument.
Disclosure of Invention
The invention aims to provide a lightning early warning system and a lightning early warning method, which can carry out effective comprehensive directional early warning on lightning so as to greatly reduce the false alarm rate of the lightning.
In order to achieve the above object, an aspect of the present invention provides a lightning early warning system, including: the lightning positioning device is used for acquiring lightning position data and lightning intensity data of lightning actually generated in a target area; the electric field detection device is used for acquiring atmospheric electric field data of the atmosphere in the target area; and the early warning device is used for determining the comprehensive early warning level of thunder and lightning according to the thunder and lightning position data, the thunder and lightning intensity data and the atmospheric electric field data in the target area and sending out early warning conforming to the comprehensive early warning level.
Preferably, the early warning device includes: the preliminary early warning level determining module is used for determining the preliminary early warning level of thunder and lightning according to the thunder and lightning position data and the atmospheric electric field data in the target area; the comprehensive early warning level determining module is used for determining the comprehensive early warning level of thunder and lightning according to the preliminary early warning level and the thunder and lightning intensity data; and the early warning module is used for sending out early warning meeting the comprehensive early warning level.
Preferably, the preliminary early warning level determining module includes: the lightning grade determining unit is used for determining the lightning grade according to the lightning position data in the target area; an electric field grade determining unit, which is used for determining the electric field grade according to the atmospheric electric field data in the target area; and the preliminary early warning grade determining unit is used for determining the preliminary early warning grade of thunder and lightning according to the thunder and lightning grade and the electric field grade.
Preferably, the lightning level determination unit includes: the calculator is used for calculating the absolute value of the difference value between the lightning position data and the position data of the electric field detection device; and a lightning level determiner for comparing the absolute value of the calculated difference with a first preset distance, a second preset distance and a third preset distance to obtain a comparison result, and executing the following operations according to the comparison result: when the absolute value of the obtained difference is smaller than the first preset distance and larger than or equal to the second preset distance, determining the lightning grade as first-grade lightning early warning; when the absolute value of the obtained difference is smaller than the second preset distance and larger than or equal to the third preset distance, determining the lightning grade as secondary lightning early warning; and when the absolute value of the obtained difference is smaller than the third preset distance, determining that the lightning grade is three-level lightning early warning, wherein numerical values of the first preset distance, the second preset distance and the third preset distance are sequentially reduced.
Preferably, the first preset distance is a maximum value of a detection range of the electric field detection device.
Preferably, the electric field level determination unit for determining the electric field level includes: determining the electric field grade as a three-level electric field early warning under the condition that the atmospheric electric field data is greater than or equal to a first preset electric field value; determining the electric field grade as a secondary electric field early warning under the condition that the atmospheric electric field data are less than the first preset electric field data and greater than or equal to second preset electric field data; and determining that the electric field grade is a first-level electric field early warning under the condition that the atmospheric electric field data is smaller than the second preset electric field data and is larger than or equal to third preset electric field data, wherein the first preset electric field data, the second preset electric field data and the third preset electric field data are reduced in sequence.
Preferably, the preliminary early warning level determining unit is configured to determine, according to the lightning level and the electric field level, a preliminary early warning level of lightning, including: and determining the preliminary early warning level of the thunder according to the sum of the thunder level and the electric field level.
Preferably, the comprehensive early warning level determination module includes: a lightning intensity range determining unit, configured to determine a lightning intensity range according to the lightning intensity data, a first preset lightning intensity range, a second preset lightning intensity range, and a third preset lightning intensity range, where lightning intensity data in the first preset lightning intensity range, the second preset lightning intensity range, and the third preset lightning intensity range are sequentially increased; and a comprehensive early warning level determination unit, configured to execute any one of the following operations according to the preliminary early warning level and the lightning intensity range: under the condition that the preliminary early warning level is the 2N level and the lightning intensity range is the third preset lightning intensity range, determining that the comprehensive early warning level of lightning is N +1 level comprehensive early warning; determining that the comprehensive early warning level of thunder and lightning is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N-level or the lightning intensity range is the second preset lightning intensity range or the first preset lightning intensity range; determining that the comprehensive early warning level of thunder is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N-1 level and the thunder intensity range is the second preset thunder intensity range or the third preset thunder intensity range; and determining that the comprehensive early warning level of thunder and lightning is N-1 level comprehensive early warning under the condition that the preliminary early warning level is the 2N-1 level and the thunder and lightning intensity range is the first preset thunder and lightning intensity range, wherein N is a positive integer.
Through the technical scheme, the lightning position data and the lightning intensity data of lightning actually occurring in the target area are creatively acquired through the lightning positioning device, the atmospheric electric field data of the atmosphere in the same target area is acquired through the electric field detection device, then the comprehensive early warning level of the lightning is determined according to the acquired lightning position data, the acquired lightning intensity data and the atmospheric electric field data, and corresponding early warning is sent out, so that the effective comprehensive directional early warning can be carried out on the lightning, and the false alarm rate of the lightning is greatly reduced.
Correspondingly, the second aspect of the invention provides a lightning early warning method, which comprises the following steps: collecting lightning position data and lightning intensity data of lightning which actually occurs in a target area; collecting atmospheric electric field data in the target area; and determining the comprehensive early warning level of thunder and lightning according to the thunder and lightning position data, the thunder and lightning intensity data and the atmospheric electric field data of the atmosphere in the target area, and sending an early warning according with the comprehensive early warning level.
For specific details and benefits of the lightning early warning method provided by the present invention, reference may be made to the above description of the lightning early warning system, which is not described herein again.
Accordingly, the third aspect of the present invention also provides a machine-readable storage medium, which stores instructions for causing a machine to execute the lightning early warning method.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a lightning early warning system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a lightning early warning system according to an embodiment of the present invention;
fig. 3 is a structural diagram of an early warning device according to a second embodiment of the present invention;
fig. 4 is a structural diagram of a preliminary warning level determination module provided in the third embodiment of the present invention;
fig. 5 is a structural diagram of a comprehensive early warning level determination module provided in the third embodiment of the present invention;
FIG. 6 is a block diagram of a lightning early warning system according to a fourth embodiment of the present invention;
FIG. 7 is a block diagram of a lightning early warning system according to a fourth embodiment of the present invention; and
fig. 8 is a flowchart of a lightning early warning method according to a fifth embodiment of the present invention.
Description of the reference numerals
10 lightning locating device 11 lightning detector
20 electric field detection device 21 atmosphere electric field appearance
30 preliminary early warning grade determining module of early warning device 31
32 comprehensive early warning level determination module and 33 early warning module
310 lightning level determining unit 311 electric field level determining unit
312 preliminary early warning level determination unit 320 thunder and lightning intensity range determination unit
321 comprehensive early warning level determining unit
Detailed Description
The following detailed description of the present invention will be made by way of five embodiments with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a structural diagram of a lightning early warning system according to an embodiment of the present invention. As shown in fig. 1, the lightning early warning system may include: the lightning positioning device 10 is used for acquiring lightning position data and lightning intensity data of lightning actually generated in a target area; the electric field detection device 20 is used for acquiring atmospheric electric field data of the atmosphere in the target area; and the early warning device 30 is used for determining the comprehensive early warning level of thunder and lightning according to the thunder and lightning position data, the thunder and lightning intensity data and the atmospheric electric field data in the target area and sending out early warning conforming to the comprehensive early warning level.
Wherein the lightning location means 10 may comprise a plurality of lightning detectors 11 distributed according to a preset rule, as shown in fig. 2. For example, if the target area is a square area as shown in fig. 2, the lightning location means 10 may comprise four lightning detectors 11 distributed at the vertices. The lightning detector 11 can detect parameters such as the occurrence time, the location and the intensity of lightning. Moreover, the technical indexes corresponding to the parameters of the lightning detector 11 may be as shown in table 1.
TABLE 1 technical indices of lightning detectors
The electric field detection device 20 may be an atmospheric electric field meter 21, as shown in fig. 2. The atmospheric electric field instruments may be distributed within a preset range around the center of the target region, for example, at the center. The technical indexes corresponding to the parameters of the atmospheric electric field meter 21 may be as shown in table 2.
TABLE 2 technical indexes of atmospheric electric field instrument
| Parameter name | Technical index |
| Weight of the apparatus | 80kg (with battery, cement base) |
| Detecting electric field intensity | -100kV/m—+100kV/m |
| Early warning range | 8～10km |
| Time of early warning | Early warning 15-60 minutes in advance |
| Dust and water proof rating | IP67 (Probe) IP20 (control host) |
Example two
On the basis of the first embodiment, the functional modules of the warning device 30 may be further divided into: the early warning device comprises a module for preliminarily determining an early warning grade according to lightning position data and atmospheric electric field data, a module for determining a comprehensive early warning grade by combining lightning intensity data and a module for early warning according to the determined comprehensive early warning grade.
Specifically, as shown in fig. 3, the early warning device 30 may include: a preliminary early warning level determining module 31, configured to determine a preliminary early warning level of lightning according to the lightning location data and the atmospheric electric field data in the target area; a comprehensive early warning level determination module 32, configured to determine a comprehensive early warning level of lightning according to the preliminary early warning level and the lightning intensity data; and an early warning module 33 for issuing an early warning in accordance with the comprehensive early warning level.
EXAMPLE III
On the basis of the second embodiment, the functional modules of the preliminary warning level determining module 31 and the comprehensive warning level determining module 32 may be further divided.
Specifically, as shown in fig. 4, the preliminary warning level determining module 31 may include: a lightning level determination unit 310, configured to determine a lightning level according to the lightning location data in the target area; an electric field level determining unit 311, configured to determine an electric field level according to the atmospheric electric field data in the target region; and a preliminary early warning level determining unit 312, configured to determine a preliminary early warning level of lightning according to the lightning level and the electric field level.
For the lightning level determination unit 310, processing may be performed according to the lightning location data measured by the lightning location device 10, and three levels of lightning warnings may be set. Specifically, the lightning level determination unit 310 may include: a calculator (not shown) for calculating an absolute value of a difference between the lightning location data and the location data of the electric field detection device; and a lightning level determiner (not shown) for comparing the absolute value of the found difference with the first preset distance, the second preset distance, and the third preset distance to obtain a comparison result, and performing the following operations according to the comparison result: when the distance between the lightning position and the electric field detection device 20 (for example, the atmospheric electric field instrument 21) is less than a first preset distance and greater than or equal to a second preset distance, determining that the lightning grade is a first-grade lightning early warning; when the distance between the lightning position and the electric field detection device 20 (for example, the atmospheric electric field instrument 21) is less than the second preset distance and greater than or equal to a third preset distance, determining the lightning grade as a secondary lightning early warning; and determining the lightning level as a three-level lightning early warning when the distance from the lightning position to the electric field detection device 20 (e.g., the atmospheric electric field meter 21) is less than the third preset distance. And the numerical values of the first preset distance, the second preset distance and the third preset distance are sequentially reduced. Also, the first preset distance is related to the detection range of the electric field detection device 20, for example, the first preset distance may be the maximum value of the detection range of the electric field detection device 20.
For the electric field level determining unit 311, the large electric field data (for example, the atmospheric electrostatic field data) monitored by the electric field detecting device 20 in real time may be processed, and three levels of electric field early warning may be set. Specifically, when the atmospheric electric field intensity (for example, the atmospheric electrostatic field intensity) is greater than or equal to a first preset electric field intensity, determining the electric field level as a three-level electric field early warning; when the atmospheric electric field intensity (for example, the atmospheric electrostatic field intensity) is less than the first preset electric field intensity and greater than or equal to a second preset electric field intensity, determining the electric field level as a secondary electric field early warning; and when the atmosphere electric field intensity (for example, the atmosphere electrostatic field intensity) is less than the second preset electric field intensity and greater than or equal to a third preset electric field intensity, determining the electric field level as a first-level lightning early warning. And the numerical values of the first preset electric field intensity, the second preset electric field intensity and the third preset electric field intensity are reduced in sequence.
The preliminary early warning level determining unit 312 is configured to determine, according to the lightning level and the electric field level, a preliminary early warning level of lightning, which may include: and determining the preliminary early warning level of the thunder according to the sum of the thunder level and the electric field level. That is, the lightning level and the electric field level are main indexes for determining the comprehensive early warning level of lightning.
In order to further refine the preliminary early warning level, the lightning intensity data can be introduced into a comprehensive early warning algorithm, so that effective comprehensive directional early warning can be performed on lightning, and the false alarm rate of the lightning is greatly reduced. Specifically, as shown in fig. 5, the comprehensive warning level determining module 32 may include: a lightning intensity range determining unit 320, configured to determine a lightning intensity range according to the lightning intensity data, a first preset lightning intensity range, a second preset lightning intensity range, and a third preset lightning intensity range, where lightning intensity data in the first preset lightning intensity range, the second preset lightning intensity range, and the third preset lightning intensity range are sequentially increased; and a comprehensive early warning level determining unit 321, configured to execute any one of the following operations according to the preliminary early warning level and the lightning intensity range: under the condition that the preliminary early warning level is the 2N level and the lightning intensity range is the third preset lightning intensity range, determining that the comprehensive early warning level of lightning is N +1 level comprehensive early warning; determining that the comprehensive early warning level of thunder and lightning is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N level and the thunder and lightning intensity range is the second preset thunder and lightning intensity range or the first preset thunder and lightning intensity range; determining that the comprehensive early warning level of thunder is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N-1 level and the thunder intensity range is the second preset thunder intensity range or the third preset thunder intensity range; and determining that the comprehensive early warning level of thunder and lightning is N-1 level comprehensive early warning under the condition that the preliminary early warning level is the 2N-1 level and the thunder and lightning intensity range is the first preset thunder and lightning intensity range, wherein N is a positive integer.
Example four
In the case where the maximum value of the detection range of the atmospheric electric field instrument 21 is 10km, the first preset distance, the second preset distance, and the third preset distance may be 30km, 20km, and 10km, respectively, for the lightning level determination unit 310, and the following result may be obtained according to the distance from the lightning location to the atmospheric electric field instrument 21.
When the distance between the lightning position and the atmospheric electric field instrument 21 is within the range of 20-30km, determining the lightning grade as first-grade lightning early warning;
when the distance between the lightning position and the atmospheric electric field instrument 21 is within the range of 10-20km, determining the lightning grade as secondary lightning early warning; and
and when the distance between the lightning position and the atmospheric electric field instrument 21 is within the range of 0-10km, determining the lightning grade as three-level lightning early warning.
For the electric field level determining unit 311, if the first preset electric field strength, the second preset electric field strength and the third preset electric field strength are 8kV/m, 5kV/m and 2kV/m, respectively, the following results can be obtained according to the atmosphere electrostatic field data E.
When E is more than 5kV/m and more than or equal to 2kV/m, determining that the electric field grade is a first-level electric field early warning, and indicating that the atmospheric electric field is being enhanced;
when E is more than 8kV/m and is more than or equal to 5kV/m, determining the electric field grade as secondary electric field early warning, and indicating that the atmospheric electric field is being enhanced and is rapidly increasing and the lightning probability is rapidly increased; and
and when the E is more than or equal to 8kV/m, determining that the electric field grade is three-level electric field early warning, and early warning lightning can occur in 15-60 minutes in the future.
For the preliminary warning level determination unit 312, a preliminary warning level of lightning may be determined according to a sum of the lightning level and the electric field level, as shown in table 3. Wherein, when 2kV/m > E, the electric field grade is 0; and the lightning level is 0 when the distance of the lightning location from the atmospheric electric field instrument 21 is more than 30 km.
TABLE 3 Primary early warning level results
For the lightning intensity range determination unit 320, if the first preset lightning intensity range, the second preset lightning intensity range, and the third preset lightning intensity range are 0-30kA, 30-50kA, and 50kA ∞, respectively, the following results can be obtained according to the lightning intensity data.
When the lightning intensity data is within the range of 0-30kA, determining the lightning intensity range as a first preset lightning intensity range;
when the lightning intensity data is within the range of 30-50kA, determining the lightning intensity range as a second preset lightning intensity range; and
and when the lightning intensity data is more than 50kA, determining the lightning intensity range as a third preset lightning intensity range.
For the comprehensive early warning level determining unit 321, taking the total number of the primary early warning levels divided into 6 levels as an example, the comprehensive early warning level of the lightning can be determined according to the primary early warning level and the lightning intensity range.
When the primary early warning level is 1, if the lightning intensity range is a first preset lightning intensity range, determining that the comprehensive early warning level of the lightning is 0-level comprehensive early warning, namely the early warning module 33 does not need to send out early warning information; if the lightning intensity range is the second preset lightning intensity range or the third preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is the level 1 comprehensive early warning, that is, the early warning module 33 may send level 1 comprehensive early warning information (for example, yellow early warning).
As shown in fig. 6, when thundercloud does not enter the lightning early warning range of 30km of the atmospheric electric field instrument 21, the lightning detector 11 monitors lightning activity first to monitor information such as lightning position and strength, but the system does not send out comprehensive early warning information at this time. As shown in fig. 7, when the thundercloud enters the lightning early warning range of 30km of the atmospheric electric field instrument 21, the system performs comprehensive early warning according to the method provided by the invention.
When the primary early warning level is 2, if the lightning intensity range is a third preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is 2-level comprehensive early warning, that is, the early warning module 33 can send 2-level comprehensive early warning information (for example, orange early warning); if the lightning intensity range is the second preset lightning intensity range or the first preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is the level 1 comprehensive early warning, that is, the early warning module 33 can send the level 1 comprehensive early warning information (for example, yellow early warning).
When the primary early warning level is 3, if the lightning intensity range is the first preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is level 1 comprehensive early warning, that is, the early warning module 33 can send level 1 comprehensive early warning information (for example, yellow early warning); if the lightning intensity range is the second preset lightning intensity range or the third preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is the 2-level comprehensive early warning, that is, the early warning module 33 may send 2-level comprehensive early warning information (for example, orange early warning).
When the primary early warning level is 4, if the lightning intensity range is a third preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is 3-level comprehensive early warning, that is, the early warning module 33 can send out 3-level comprehensive early warning information (for example, red early warning); if the lightning intensity range is the second preset lightning intensity range or the first preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is the 2-level comprehensive early warning, that is, the early warning module 33 can send 2-level comprehensive early warning information (for example, orange early warning).
When the primary early warning level is 5, if the lightning intensity range is the first preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is 2-level comprehensive early warning, that is, the early warning module 33 can send 2-level comprehensive early warning information (for example, orange early warning); if the lightning intensity range is the second preset lightning intensity range or the third preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is 3-level comprehensive early warning, that is, the early warning module 33 may send 3-level comprehensive early warning information (for example, red early warning).
When the primary early warning level is 6, if the lightning intensity range is a third preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is 4-level comprehensive early warning, that is, the early warning module 33 can send 4-level comprehensive early warning information (for example, special early warning); if the lightning intensity range is the second preset lightning intensity range or the first preset lightning intensity range, it is determined that the comprehensive early warning level of the lightning is 3-level comprehensive early warning, that is, the early warning module 33 may send 3-level comprehensive early warning information (for example, red early warning).
In summary, the lightning location data and the lightning intensity data of lightning actually occurring in the target area are creatively acquired through the lightning positioning device, the atmospheric electric field data of the atmosphere in the same target area is acquired through the electric field detection device, then the comprehensive early warning level of the lightning is determined according to the acquired lightning location data, the acquired lightning intensity data and the atmospheric electric field data, and corresponding early warning is sent out, so that effective comprehensive directional early warning can be carried out on the lightning, and the false alarm rate of the lightning is greatly reduced.
Correspondingly, fig. 8 is a flowchart of a lightning early warning method provided in the fifth embodiment of the present invention. As shown in fig. 8, the lightning early warning method may include: step S801, collecting lightning position data and lightning intensity data of lightning actually generated in a target area; step S802, collecting atmospheric electric field data of the atmosphere in the target area; and step S803, determining the comprehensive early warning level of thunder and lightning according to the thunder and lightning position data, the thunder and lightning intensity data and the atmospheric electric field data in the target area, and sending out early warning conforming to the comprehensive early warning level.
Preferably, the determining the comprehensive early warning level of lightning comprises: determining the preliminary early warning level of lightning according to the lightning position data and the atmospheric electric field data in the target area; and determining the comprehensive early warning level of thunder and lightning according to the preliminary early warning level and the thunder and lightning intensity data.
Preferably, the determining the comprehensive early warning level of lightning comprises: determining lightning grade according to the lightning position data in the target area; determining an electric field grade according to the atmospheric electric field data in the target area; and determining the preliminary early warning level of the thunder and lightning according to the thunder and lightning level and the electric field level.
Preferably, the determining the lightning level comprises: calculating the absolute value of the difference value between the lightning position data and the position data of the electric field detection device; and comparing the absolute value of the obtained difference value with a first preset distance, a second preset distance and a third preset distance to obtain a comparison result, and executing the following operations according to the comparison result: when the absolute value of the obtained difference is smaller than the first preset distance and larger than or equal to the second preset distance, determining the lightning grade as first-grade lightning early warning; when the absolute value of the obtained difference is smaller than the second preset distance and larger than or equal to the third preset distance, determining the lightning grade as secondary lightning early warning; and when the absolute value of the obtained difference is smaller than the third preset distance, determining that the lightning grade is three-level lightning early warning, wherein numerical values of the first preset distance, the second preset distance and the third preset distance are sequentially reduced.
Preferably, said determining the electric field level comprises: determining the electric field grade as a three-level electric field early warning under the condition that the atmospheric electric field data is greater than or equal to a first preset electric field value; determining the electric field grade as a secondary electric field early warning under the condition that the atmospheric electric field data are less than the first preset electric field data and greater than or equal to second preset electric field data; and determining that the electric field grade is a first-level electric field early warning under the condition that the atmospheric electric field data is smaller than the second preset electric field data and is larger than or equal to third preset electric field data, wherein the first preset electric field data, the second preset electric field data and the third preset electric field data are reduced in sequence.
Preferably, the determining the preliminary warning level of lightning comprises: and determining the preliminary early warning level of the thunder according to the sum of the thunder level and the electric field level.
Preferably, the determining the comprehensive early warning level of lightning comprises: determining a lightning intensity range according to the lightning intensity data, a first preset lightning intensity range, a second preset lightning intensity range and a third preset lightning intensity range, wherein the lightning intensity data in the first preset lightning intensity range, the second preset lightning intensity range and the third preset lightning intensity range are increased in sequence; and according to the preliminary early warning level and the lightning intensity range, executing any one of the following operations: under the condition that the preliminary early warning level is the 2N level and the lightning intensity range is the third preset lightning intensity range, determining that the comprehensive early warning level of lightning is N +1 level comprehensive early warning; determining that the comprehensive early warning level of thunder and lightning is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N level and the thunder and lightning intensity range is the second preset thunder and lightning intensity range or the first preset thunder and lightning intensity range; and determining that the comprehensive early warning level of thunder is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N-1 level and the thunder intensity range is the second preset thunder intensity range or the third preset thunder intensity range; and under the condition that the preliminary early warning level is the 2N-1 th level and the lightning intensity range is the first preset lightning intensity range, determining that the comprehensive early warning level of lightning is N-1 comprehensive early warning, wherein N is a positive integer.
For specific details and benefits of the lightning early warning method provided by the present invention, reference may be made to the above description of the lightning early warning system, which is not described herein again.
Correspondingly, the embodiment of the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions, and the instructions are used for enabling a machine to execute the lightning early warning method.
The machine-readable storage medium includes, but is not limited to, Phase Change Random Access Memory (PRAM, also known as RCM/PCRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory (Flash Memory) or other Memory technology, compact disc read only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, and various media capable of storing program code.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (14)
1. A lightning early warning system, characterized in that, this lightning early warning system includes:
the lightning positioning device is used for acquiring lightning position data and lightning intensity data of lightning actually generated in a target area;
the electric field detection device is used for acquiring atmospheric electric field data of the atmosphere in the target area; and
and the early warning device is used for determining the comprehensive early warning level of thunder and lightning according to the thunder and lightning position data, the thunder and lightning intensity data and the atmospheric electric field data in the target area and sending out early warning conforming to the comprehensive early warning level.
2. The lightning early warning system of claim 1, wherein the early warning device comprises:
the preliminary early warning level determining module is used for determining the preliminary early warning level of thunder and lightning according to the thunder and lightning position data and the atmospheric electric field data in the target area;
the comprehensive early warning level determining module is used for determining the comprehensive early warning level of thunder and lightning according to the preliminary early warning level and the thunder and lightning intensity data; and
and the early warning module is used for sending out early warning meeting the comprehensive early warning level.
3. The lightning early warning system of claim 2, wherein the preliminary early warning level determination module comprises:
the lightning grade determining unit is used for determining the lightning grade according to the lightning position data in the target area;
an electric field grade determining unit, which is used for determining the electric field grade according to the atmospheric electric field data in the target area; and
and the preliminary early warning grade determining unit is used for determining the preliminary early warning grade of the thunder and lightning according to the thunder and lightning grade and the electric field grade.
4. The lightning early warning system of claim 3, wherein the lightning level determination unit comprises:
the calculator is used for calculating the absolute value of the difference value between the lightning position data and the position data of the electric field detection device; and
a lightning grade determiner for comparing the absolute value of the calculated difference with a first preset distance, a second preset distance and a third preset distance to obtain a comparison result, and executing the following operations according to the comparison result:
when the absolute value of the obtained difference is smaller than the first preset distance and larger than or equal to the second preset distance, determining the lightning grade as first-grade lightning early warning;
when the absolute value of the obtained difference is smaller than the second preset distance and larger than or equal to the third preset distance, determining the lightning grade as secondary lightning early warning; and
when the absolute value of the obtained difference is smaller than the third preset distance, the lightning grade is determined to be three-grade lightning early warning,
and the numerical values of the first preset distance, the second preset distance and the third preset distance are sequentially reduced.
5. The lightning early warning system of claim 3, wherein the first predetermined distance is a maximum value of a detection range of the electric field detection device.
6. The lightning early warning system of claim 3, wherein the electric field level determination unit to determine the electric field level comprises:
determining the electric field grade as a three-level electric field early warning under the condition that the atmospheric electric field data is greater than or equal to a first preset electric field value;
determining the electric field grade as a secondary electric field early warning under the condition that the atmospheric electric field data are less than the first preset electric field data and greater than or equal to second preset electric field data; and
determining the electric field grade as first-level electric field early warning under the condition that the atmospheric electric field data is less than the second preset electric field data and is greater than or equal to third preset electric field data,
wherein the first preset electric field data, the second preset electric field data, and the third preset electric field data are sequentially reduced.
7. The lightning early warning system of claim 3, wherein the preliminary early warning level determining unit is configured to determine a preliminary early warning level of lightning according to the lightning level and the electric field level, and the preliminary early warning level of lightning comprises:
and determining the preliminary early warning level of the thunder according to the sum of the thunder level and the electric field level.
8. The lightning early warning system of claim 2, wherein the comprehensive early warning level determination module comprises:
a lightning intensity range determining unit, configured to determine a lightning intensity range according to the lightning intensity data, a first preset lightning intensity range, a second preset lightning intensity range, and a third preset lightning intensity range, where lightning intensity data in the first preset lightning intensity range, the second preset lightning intensity range, and the third preset lightning intensity range are sequentially increased; and
a comprehensive early warning level determination unit, configured to execute any one of the following operations according to the preliminary early warning level and the lightning intensity range:
under the condition that the preliminary early warning level is the 2N level and the lightning intensity range is the third preset lightning intensity range, determining that the comprehensive early warning level of lightning is N +1 level comprehensive early warning;
determining that the comprehensive early warning level of thunder and lightning is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N level and the thunder and lightning intensity range is the second preset thunder and lightning intensity range or the first preset thunder and lightning intensity range;
determining that the comprehensive early warning level of thunder is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N-1 level and the thunder intensity range is the second preset thunder intensity range or the third preset thunder intensity range; and
determining the comprehensive early warning level of thunder and lightning as N-1 level comprehensive early warning under the condition that the preliminary early warning level is the 2N-1 level and the thunder and lightning intensity range is the first preset thunder and lightning intensity range,
wherein N is a positive integer.
9. A lightning early warning method is characterized by comprising the following steps:
collecting lightning position data and lightning intensity data of lightning which actually occurs in a target area;
collecting atmospheric electric field data of the atmosphere in the target area; and
and determining the comprehensive early warning level of thunder and lightning according to the thunder and lightning position data, the thunder and lightning intensity data and the atmospheric electric field data in the target area, and sending an early warning according with the comprehensive early warning level.
10. The lightning early warning method of claim 9, wherein the determining the comprehensive early warning level of lightning comprises:
determining the preliminary early warning level of lightning according to the lightning position data and the atmospheric electric field data in the target area; and
and determining the comprehensive early warning level of the thunder and lightning according to the preliminary early warning level and the thunder and lightning intensity data.
11. The lightning early warning method of claim 10, wherein the determining the comprehensive early warning level of lightning comprises:
determining lightning grade according to the lightning position data in the target area;
determining an electric field grade according to the atmospheric electric field data in the target area; and
and determining the preliminary early warning level of the thunder and lightning according to the thunder and lightning level and the electric field level.
12. The lightning early warning method of claim 11, wherein the determining the preliminary early warning level of lightning comprises:
and determining the preliminary early warning level of the thunder according to the sum of the thunder level and the electric field level.
13. The lightning early warning method of claim 10, wherein the determining the comprehensive early warning level of lightning comprises:
determining a lightning intensity range according to the lightning intensity data, a first preset lightning intensity range, a second preset lightning intensity range and a third preset lightning intensity range, wherein the lightning intensity data in the first preset lightning intensity range, the second preset lightning intensity range and the third preset lightning intensity range are increased in sequence; and
according to the preliminary early warning level and the lightning intensity range, any one of the following operations is executed:
under the condition that the preliminary early warning level is the 2N level and the lightning intensity range is the third preset lightning intensity range, determining that the comprehensive early warning level of lightning is N +1 level comprehensive early warning;
determining that the comprehensive early warning level of thunder and lightning is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N level and the thunder and lightning intensity range is the second preset thunder and lightning intensity range or the first preset thunder and lightning intensity range;
determining that the comprehensive early warning level of thunder is N-level comprehensive early warning under the condition that the preliminary early warning level is 2N-1 level and the thunder intensity range is the second preset thunder intensity range or the third preset thunder intensity range; and
determining the comprehensive early warning level of thunder and lightning as N-1 level comprehensive early warning under the condition that the preliminary early warning level is the 2N-1 level and the thunder and lightning intensity range is the first preset thunder and lightning intensity range,
wherein N is a positive integer.
14. A machine-readable storage medium having instructions stored thereon for causing a machine to perform the lightning alerting method of any one of claims 1-8.
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