CN113567763A - Lightning early warning method and lightning early warning device - Google Patents
Lightning early warning method and lightning early warning device Download PDFInfo
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- CN113567763A CN113567763A CN202110907566.2A CN202110907566A CN113567763A CN 113567763 A CN113567763 A CN 113567763A CN 202110907566 A CN202110907566 A CN 202110907566A CN 113567763 A CN113567763 A CN 113567763A
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Abstract
The lightning early warning method provided by the invention comprises a primary early warning step. The first-stage early warning step comprises the following steps: setting a primary early warning condition for a lightning early warning instrument, wherein the primary early warning condition comprises a primary early warning threshold value; detecting electric field parameters of an atmospheric electric field of a target area by using a lightning early warning instrument, wherein the electric field parameters comprise electric field change rate; judging whether the change rate of the electric field reaches the primary early warning threshold value; if the primary early warning threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument; and if the first-level early warning threshold value is reached, entering the step of pushing a first-level early warning signal. The lightning early warning method provided by the invention adopts the electric field change rate as the early warning judgment basis, thereby realizing a more accurate and rapid early warning mechanism.
Description
Technical Field
The invention relates to the field of lightning early warning, in particular to a lightning early warning method and lightning early warning equipment.
Background
Thunder and lightning is an atmospheric discharge phenomenon generated in strong convection weather, and has short discharge time and huge energy. The heat energy generated by the strong current of the thunder, the high-frequency electromagnetic field generated by the area around the thunder, the strong thunder wave and the like can generate huge damage in a moment, which can cause casualties, damage communication equipment, damage buildings, cause the open circuit of a power distribution device and cause fire and the like. Therefore, the early warning is accurately and timely carried out before the lightning happens, and the method has important significance for protecting the life and property safety of people. However, the formation of the lightning is influenced by many factors, such as geographical and geological features, climatic features, changes of surrounding environment and the like of the occurrence area, and the characteristics of instantaneous occurrence of the lightning, which bring difficulty to accurate early warning of the lightning.
Disclosure of Invention
In view of this, the present invention provides an accurate lightning early warning method and lightning early warning device.
In order to realize the purpose of the invention, the invention provides a lightning early warning method. The lightning early warning method comprises a primary early warning step. The first-stage early warning step comprises the following steps: setting a primary early warning condition for a lightning early warning instrument, wherein the primary early warning condition comprises a primary early warning threshold value; detecting electric field parameters of an atmospheric electric field of a target area by using a lightning early warning instrument, wherein the electric field parameters comprise electric field change rate; judging whether the change rate of the electric field reaches the primary early warning threshold value; if the primary early warning threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument; and if the first-level early warning threshold value is reached, entering the step of pushing a first-level early warning signal.
Alternatively, the electric field change rate refers to a change amplitude of the atmospheric electric field strength of the target region in a unit time.
Optionally, the first-stage pre-warning condition further includes a first-stage minimum waiting time, the step of determining whether the electric field change rate reaches the first-stage pre-warning threshold and the step of pushing the pre-warning signal further includes: recording the timing time when the change rate of the atmospheric electric field reaches a primary early warning threshold; judging whether the timing time exceeds the primary minimum waiting time or not; if the first-level minimum waiting time is not exceeded, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument; and if the first-stage minimum waiting time is exceeded, entering the step to push a first-stage early warning signal.
Optionally, the primary warning condition further includes a primary valid point threshold, the step records a timing time when the atmospheric electric field change rate reaches the primary warning threshold, and the step determines whether the timing time exceeds the primary minimum waiting time, and the primary warning step further includes: counting the number of effective points when the change rate of the electric field reaches a first-level early warning threshold value; and judging whether the timing time exceeds the primary minimum waiting time in the step, and pushing primary early warning signals in the step, wherein the primary early warning step further comprises the following steps:
judging whether the effective points reach the primary effective point threshold value or not; if the first-stage effective point number threshold value is not reached, returning to the step, and detecting the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument; and if the first-level effective point number threshold value is reached, entering the step to push a first-level early warning signal.
Optionally, the first-stage early warning condition further includes a first-stage maximum timeout time, the step of determining whether the valid point reaches the first-stage valid point threshold, and if the step of determining the valid point reaches the first-stage early warning threshold, pushing a first-stage early warning signal, the first-stage early warning step further includes: judging whether the timing time exceeds the primary maximum timeout time or not; if the primary maximum timeout time is exceeded, timing zero clearing and counting zero clearing are carried out, and then the step is returned to, and the electric field parameters of the atmospheric electric field in the target area are detected by the lightning early warning instrument; and if the primary maximum timeout time is not exceeded, entering the step to push a primary early warning signal.
Optionally, the first-stage early warning condition further includes a first-stage minimum intensity threshold, the electric field parameter further includes an electric field intensity, the step of determining whether the timing time exceeds the first-stage maximum timeout time, and the step of pushing the first-stage early warning signal, the first-stage early warning step further includes: screening out a peak value of the electric field intensity based on the electric field intensity of each effective point; judging whether the electric field intensity peak value reaches the first-level minimum intensity threshold value; if the first-level minimum intensity threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument, wherein the electric field parameters comprise the electric field change rate; and if the first-level minimum intensity threshold is reached, entering the step to push a first-level early warning signal.
Optionally, after the step of pushing the primary warning signal, the primary warning step further includes:
clearing the primary early warning condition; and entering a secondary early warning step.
Optionally, the secondary warning step includes: setting a second-stage early warning condition, wherein the second-stage early warning condition comprises a second-stage minimum waiting time, a second-stage maximum overtime time, a second-stage early warning threshold value, a second-stage effective point threshold value and a second-stage minimum intensity threshold value; detecting electric field parameters of an atmospheric electric field of a target area by using a lightning early warning instrument, wherein the electric field parameters comprise an electric field change rate and an electric field strength; judging whether the change rate of the electric field reaches the secondary early warning threshold value; if the secondary early warning threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument; if the second-stage early warning threshold value is reached, entering a step of recording the timing time when the change rate of the atmospheric electric field reaches the second-stage early warning threshold value; counting the number of effective points when the change rate of the electric field reaches a secondary early warning threshold; judging whether the timing time exceeds the secondary minimum waiting time or not; if the second-level minimum waiting time is not exceeded, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument; if the second-level minimum waiting time is exceeded, entering a step of judging whether the effective points reach a second-level effective point threshold value; if the number of the secondary effective points is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument; if the threshold value of the secondary effective point number is reached, entering the step of judging whether the timing time exceeds the secondary maximum timeout time; if the second-level maximum timeout time is exceeded, timing zero clearing and counting zero clearing are carried out, and then the step is returned to, and the electric field parameters of the atmospheric electric field in the target area are detected by the lightning early warning instrument; if the secondary maximum timeout time is not exceeded, the method enters the step of screening out the peak value of the electric field intensity based on the electric field intensity of each effective point; judging whether the electric field intensity peak value reaches the secondary minimum intensity threshold value; if the second-level minimum intensity threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument; if the second-level minimum intensity threshold is reached, entering the step of pushing a second-level early warning signal; clearing the secondary early warning condition; and entering a third-stage early warning step.
Optionally, the third-stage pre-warning step includes: setting three-stage early warning conditions, wherein the three-stage early warning conditions comprise three-stage minimum waiting time, three-stage maximum overtime time, three-stage early warning threshold values, three-stage effective point threshold values and three-stage minimum intensity threshold values; detecting electric field parameters of an atmospheric electric field of a target area by using a lightning early warning instrument, wherein the electric field parameters comprise an electric field change rate and an electric field strength; judging whether the change rate of the electric field reaches the three-level early warning threshold value or not; if the three-level early warning threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument; if the three-level early warning threshold value is reached, entering a step of recording the timing time when the change rate of the atmospheric electric field reaches the three-level early warning threshold value; counting the number of effective points of which the change rate of the electric field reaches a three-level early warning threshold; judging whether the timing time exceeds the three-level minimum waiting time or not; if the three-level minimum waiting time is not exceeded, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument; if the minimum waiting time of the third level is exceeded, entering a step of judging whether the effective points reach a threshold value of the effective points of the third level; if the three-level effective point number threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument; if the threshold value of the three-level effective points is reached, entering the step of judging whether the timing time exceeds the three-level maximum timeout time or not; if the three-level maximum timeout time is exceeded, timing zero clearing and counting zero clearing are carried out, and then the step is returned to, and the electric field parameters of the atmospheric electric field in the target area are detected by the lightning early warning instrument; if the three-level maximum timeout time is not exceeded, the method enters the step of screening out the peak value of the electric field intensity based on the electric field intensity of each effective point; judging whether the electric field intensity peak value reaches the three-level minimum intensity threshold value; if the three-level minimum intensity threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument; if the three-level minimum intensity threshold is reached, entering the step of pushing a three-level early warning signal; clearing the three-level early warning condition; and returning to the primary early warning step.
The invention also provides lightning early warning equipment. The lightning early warning device comprises: the lightning early warning instrument is used for detecting electric field parameters of the target area; the processor is used for realizing each program and controlling the lightning early warning instrument to carry out detection operation; at least one memory for storing at least one program; the at least one program, when executed by the at least one processor, causes the lightning early warning device to implement the method of any one of the preceding claims.
The lightning early warning method provided by the invention adopts the electric field change rate as the early warning judgment basis, thereby realizing a more accurate and rapid early warning mechanism. On the basis, the lightning early warning method further provides a time condition as an early warning basis, so that higher accuracy and timeliness are provided, for example, the minimum waiting time is used for limiting the minimum time range meeting the early warning condition of the electric field change rate, and the maximum overtime time is used for limiting the maximum time range meeting the electric field change rate and other early warning conditions. In addition, the lightning early warning method provided by the invention also provides effective point counting as an early warning condition so as to ensure that the number of effective points meeting the early warning condition of the electric field change rate can reach a certain number requirement, thereby improving the early warning effectiveness and accuracy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
Fig. 1 is a schematic diagram of an early warning scene of a lightning early warning device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a lightning early warning device according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of a lightning early warning method according to an embodiment of the present invention.
FIG. 4 is a detailed flowchart illustrating a first part of the lightning early warning method in the embodiment of FIG. 3.
FIG. 5 is a flowchart illustrating a second part of the lightning early warning method in the embodiment of FIG. 3.
FIG. 6 is a detailed flowchart of a third part of the lightning early warning method in the embodiment of FIG. 3.
FIG. 7 is a diagram illustrating the variation of electric field strength with time according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Fig. 1 illustrates a lightning early warning scenario of a lightning early warning device 900 according to an embodiment of the present invention. The lightning early warning device 900 is configured to detect an electric field parameter of the target area 400, so as to early warn about a lightning occurrence of the target area 400. Referring collectively to FIG. 2, lightning early warning device 900 includes a lightning early warning instrument 902, a processor 904, and a memory 906. The lightning early warning instrument 902 is configured to detect electric field parameters of the target area 400, and the processor 902 is configured to implement each program and control operations of the memory 906 and the lightning early warning instrument 902. Memory 906 is used to store at least one program that, when executed by processor 904, lightning early warning device 900 may implement the lightning early warning methods provided by the present invention.
Referring to fig. 3, a lightning early warning method according to an embodiment of the present invention includes the following steps 100-300.
And step 100, performing primary early warning.
And step 200, performing secondary early warning.
And step 300, carrying out three-stage early warning. In this embodiment, the early warning level is divided into three levels; the main difference between each stage is that the early warning condition is improved step by step, so that the early warning overall process which is expected and easier to perceive is presented to the early warning object, and a sudden early warning mechanism is avoided. Of course, in other embodiments, a non-staged warning mode, or a two-stage, four-stage, or even more stage warning mode may be provided. In addition, in other embodiments, the early warning conditions at all levels can be kept consistent, and the persistence of the early warning signal is enhanced only by multiple early warnings.
And 102, setting a primary early warning condition. Referring to fig. 4 in combination, the primary warning condition includes a primary minimum waiting time, a primary maximum timeout time, a primary warning threshold, a primary valid point threshold, and a primary minimum strength threshold. Each specific primary warning condition will be described in detail with reference to fig. 4 in conjunction with specific steps below.
104, detecting electric field parameters of the atmospheric electric field of the target area 400 by using the lightning early warning instrument 902. Referring collectively to fig. 4, the electric field parameters include the rate of change of the electric field and the strength of the electric field. Wherein, the electric field strength is the voltage intensity value of the atmospheric electric field, and the electric field change rate refers to the change amplitude of the atmospheric electric field strength of the target area in unit time. Compared with the electric field intensity, the electric field change rate can judge the occurrence of the lightning stroke danger more accurately and more rapidly, because the atmospheric electric field is extremely unstable before the lightning stroke danger occurs, and the change of the internal electric field intensity is extremely violent, the electric field change rate is extremely high, and the extremely large electric field intensity change often occurs in a short time. The invention adopts the electric field change rate as one of the bases of early warning judgment, and can more effectively improve the accuracy and the early warning speed of lightning early warning.
And step 106, judging whether the electric field parameters meet the primary early warning condition. In this embodiment, the electric field parameters include an electric field change rate and an electric field strength, and the key of determining whether the electric field parameters satisfy the first-level warning condition lies in: and judging whether the change rate of the electric field reaches a primary early warning threshold value. The electric field change rate can be used for more accurately and quickly pre-judging the lightning stroke danger, so that the electric field change rate is used as an important basis for early warning judgment. In addition, the judgment of other specific early warning conditions can further enhance the accuracy of early warning judgment. Details of the determination will be further described below with reference to fig. 4. In step 106, if the electric field parameter does not meet the first-level early warning condition, returning to step 104; and if the electric field parameters meet the first-level early warning condition, entering the step 108.
And step 108, pushing a primary early warning signal.
And step 110, clearing the primary early warning condition. And after the pushing of the primary early warning signal is finished, resetting the primary early warning condition in time so as to start a secondary early warning step.
The secondary warning step 200 further includes the following steps 202-210.
And step 204, detecting electric field parameters of the atmospheric electric field of the target area 400 by using the lightning early warning instrument 902. Referring collectively to fig. 4, the electric field parameters include the rate of change of the electric field and the strength of the electric field. Wherein, the electric field strength is the voltage intensity value of the atmospheric electric field, and the electric field change rate refers to the change amplitude of the atmospheric electric field strength of the target area in unit time.
And step 206, judging whether the electric field parameters meet the secondary early warning conditions. Details of the determination will be further described below with reference to fig. 4. In step 206, if the electric field parameter does not satisfy the secondary early warning condition, returning to step 204; if the electric field parameter meets the secondary warning condition, step 208 is entered.
And step 208, pushing a secondary early warning signal.
And step 210, clearing the secondary early warning condition. And after the pushing of the second-stage early warning signal is finished, resetting the second-stage early warning condition in time so as to start a third-stage early warning step.
The tertiary warning step 300 further includes the following steps 302-310.
And step 302, setting a three-stage early warning condition. Referring to fig. 4 in combination, the three-level warning conditions include three levels of minimum waiting time, three levels of maximum timeout time, three levels of warning threshold values, three levels of valid point threshold values, and three levels of minimum intensity threshold values. Each specific three-stage pre-warning condition will be described in detail with reference to fig. 4.
And step 304, detecting electric field parameters of the atmospheric electric field of the target area 400 by using the lightning early warning instrument 902. Referring collectively to fig. 4, the electric field parameters include the rate of change of the electric field and the strength of the electric field. Wherein, the electric field strength is the voltage intensity value of the atmospheric electric field, and the electric field change rate refers to the change amplitude of the atmospheric electric field strength of the target area in unit time.
And step 306, judging whether the electric field parameters meet the three-level early warning conditions. Details of the determination will be further described below with reference to fig. 4. In step 306, if the electric field parameter does not satisfy the three-level early warning condition, returning to step 304; if the electric field parameter satisfies the third-level warning condition, step 308 is performed.
And step 308, pushing a three-level early warning signal.
And step 310, clearing the tertiary early warning condition, and returning to the step 102. And after the pushing of the third-level early warning signal is finished, resetting the third-level early warning condition in time so as to return to the first-level early warning step.
Referring collectively to FIG. 4, step 106 further includes the following steps 602-618.
And step 604, recording the timing time when the change rate of the electric field reaches a primary early warning threshold value. In order to improve the timeliness of the early warning, the early warning service can be accurately provided for the user in time, and therefore the time condition of the early warning is further provided as the judgment condition, such as the first-level minimum waiting time and the first-level maximum timeout time. And when the change rate of the electric field reaches a primary early warning threshold value, starting timing operation to record each time condition for judging whether the early warning condition is met.
And 606, counting the number of effective points of which the change rate of the electric field reaches a primary early warning threshold value. In the embodiment, the judgment result that the change rate of the electric field reaches the first-level early warning threshold value every time is counted as 1 effective point. In order to further improve the accuracy of the early warning, and avoid misjudgment due to accidental factors, the embodiment further provides a condition of the number of the early warning effective points as a judgment condition, such as a threshold of the number of the first-level effective points.
And 614, clearing the timing and the count. When the timing time is too long and exceeds the first-level maximum timeout time, the early warning conditions of the first-level minimum waiting time and the first-level effective point threshold value are met, but more time is spent, the early warning cannot be performed as lightning stroke danger, subsequent early warning judgment is required again, and false early warning operation is avoided. Because the subsequent early warning judgment is needed, the previous timing and counting needs to be cleared, and the timing and counting operation needs to be restarted.
And 616, screening out a peak value of the electric field intensity based on the electric field intensity of each effective point.
And step 618, judging whether the peak value of the electric field intensity reaches the first-level minimum intensity threshold value. In this embodiment, in order to avoid the situation that the actual lightning risk is very low due to low electric field strength when other first-stage early warning conditions are met, it is necessary to further determine the early warning electric field strength. If the first-level minimum intensity threshold value is not reached, returning to the step 104; if a first minimum intensity threshold is reached, step 108 is entered.
With further reference to FIG. 4, step 206 further includes the following steps 702-718.
And step 702, judging whether the change rate of the atmospheric electric field reaches a secondary early warning threshold value. In this embodiment, the secondary early warning threshold is a value set according to experience. In other embodiments, the secondary warning threshold may also be a value calculated by performing statistical analysis on the rate of change of the electric field over a period of time.
And step 704, recording the timing time when the electric field change rate reaches the secondary early warning threshold value.
And step 706, counting the number of effective points of which the change rate of the electric field reaches the secondary early warning threshold value.
At step 714, the timer is cleared and the count is cleared. When the timing time is too long and exceeds the second-level maximum timeout time, the early warning conditions of the second-level minimum waiting time and the second-level effective point threshold value are met, but much time is spent, the early warning cannot be performed as lightning stroke danger, subsequent early warning judgment is required again, and false early warning operation is avoided. Because the subsequent early warning judgment is needed, the previous timing and counting needs to be cleared, and the timing and counting operation needs to be restarted.
And 716, screening out a peak value of the electric field intensity based on the electric field intensity of each effective point.
With further reference to fig. 4, step 306 further includes the following steps 802-818.
And step 802, judging whether the change rate of the atmospheric electric field reaches a three-level early warning threshold value. In this embodiment, the third-level early warning threshold is a value set according to experience. In other embodiments, the third-level pre-warning threshold may also be a value calculated by performing statistical analysis on the electric field change rate over a period of time.
And step 804, recording the timing time when the change rate of the electric field reaches the third-level early warning threshold value.
And 806, counting the number of effective points of which the change rate of the electric field reaches a three-level early warning threshold value.
In step 814, the timer is cleared and the count is cleared. When the timing time is too long and exceeds the three-level maximum timeout time, the early warning conditions of the three-level minimum waiting time and the three-level effective point threshold value are met, but more time is spent, the early warning is not taken as a lightning stroke danger, subsequent early warning judgment is needed again, and the false early warning operation is avoided. Because the subsequent early warning judgment is needed, the previous timing and counting needs to be cleared, and the timing and counting operation needs to be restarted.
And step 816, screening out a peak value of the electric field intensity based on the electric field intensity of each effective point.
The lightning early warning method provided by the invention adopts the electric field change rate as the early warning judgment basis, thereby realizing a more accurate and rapid early warning mechanism. On the basis, the lightning early warning method further provides a time condition as an early warning basis, so that higher accuracy and timeliness are provided, for example, the minimum waiting time is used for limiting the minimum time range meeting the early warning condition of the electric field change rate, and the maximum overtime time is used for limiting the maximum time range meeting the electric field change rate and other early warning conditions. In addition, the lightning early warning method provided by the invention also provides effective point counting as an early warning condition so as to ensure that the number of effective points meeting the early warning condition of the electric field change rate can reach a certain number requirement, thereby improving the early warning effectiveness and accuracy.
While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that the present invention is not limited to the details of construction and various changes in form and details may be made therein without departing from the spirit and scope of the invention. Accordingly, the scope of the present disclosure is not limited to the above-described embodiments, but should be determined by the claims and the equivalents thereof.
Claims (10)
1. A lightning early warning method is characterized by comprising a primary early warning step, wherein the primary early warning step comprises the following steps:
setting a primary early warning condition for a lightning early warning instrument, wherein the primary early warning condition comprises a primary early warning threshold value;
detecting electric field parameters of an atmospheric electric field of a target area by the lightning early warning instrument, wherein the electric field parameters comprise electric field change rate;
judging whether the change rate of the electric field reaches the primary early warning threshold value;
if the primary early warning threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
and if the first-level early warning threshold value is reached, entering the step of pushing a first-level early warning signal.
2. The lightning alerting method of claim 1, wherein the electric field change rate is a change of an atmospheric electric field strength of the target area per unit time.
3. The lightning early warning method of claim 2, wherein the primary early warning condition further comprises a primary minimum waiting time, and the primary early warning step further comprises, between the step of determining whether the electric field change rate reaches the primary early warning threshold and the step of pushing a primary early warning signal:
recording the timing time when the electric field change rate reaches the primary early warning threshold;
judging whether the timing time exceeds the primary minimum waiting time or not;
if the first-level minimum waiting time is not exceeded, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
and if the first-stage minimum waiting time is exceeded, entering the step to push a first-stage early warning signal.
4. The lightning early warning method of claim 3, wherein the primary early warning condition further comprises a primary effective point threshold, the step of recording a timing time when the change rate of the atmospheric electric field reaches the primary early warning threshold and the step of determining whether the timing time exceeds the primary minimum waiting time further comprises:
counting the number of effective points of the electric field change rate reaching the primary early warning threshold; and
judging whether the timing time exceeds the first-level minimum waiting time or not in the step, and pushing a first-level early warning signal in the step, wherein the first-level early warning step further comprises the following steps:
judging whether the effective points reach the primary effective point threshold value or not;
if the primary effective point number threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
and if the first-level effective point number threshold value is reached, entering the step to push a first-level early warning signal.
5. The lightning early warning method of claim 4, wherein the primary early warning condition further comprises a primary maximum timeout period, the step of determining whether the effective points reach the primary effective point threshold value is performed before the step of pushing the primary early warning signal if the effective points reach the primary early warning threshold value, the primary early warning step further comprising:
judging whether the timing time exceeds the primary maximum timeout time or not;
if the primary maximum timeout time is exceeded, timing zero clearing and counting zero clearing are carried out, and then the step is returned to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
and if the primary maximum timeout time is not exceeded, entering the step to push a primary early warning signal.
6. The lightning early warning method of claim 5, wherein the primary early warning condition further comprises a primary minimum intensity threshold, the electric field parameter further comprises an electric field intensity, and the primary early warning step further comprises, between the step of determining whether the timed time exceeds the primary maximum timeout time and the step of pushing the primary early warning signal:
screening out a peak value of the electric field intensity based on the electric field intensity of each effective point;
judging whether the electric field intensity peak value reaches the first-level minimum intensity threshold value;
if the primary minimum intensity threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
and if the first-level minimum intensity threshold is reached, entering the step to push a first-level early warning signal.
7. The lightning alerting method of claim 6, wherein after the step of pushing a primary alerting signal, the primary alerting step further comprises:
clearing the primary early warning condition;
and entering a secondary early warning step.
8. The lightning early warning method of claim 7, wherein the secondary early warning step comprises:
setting a second-stage early warning condition, wherein the second-stage early warning condition comprises a second-stage minimum waiting time, a second-stage maximum overtime time, a second-stage early warning threshold value, a second-stage effective point threshold value and a second-stage minimum intensity threshold value;
detecting electric field parameters of an atmospheric electric field of a target area by using a lightning early warning instrument, wherein the electric field parameters comprise an electric field change rate and an electric field strength;
judging whether the change rate of the electric field reaches the secondary early warning threshold value;
if the secondary early warning threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
if the electric field change rate reaches the second-stage early warning threshold value, entering a step of recording the timing time when the electric field change rate reaches the second-stage early warning threshold value;
counting the number of effective points when the change rate of the electric field reaches the secondary early warning threshold;
judging whether the timing time exceeds the secondary minimum waiting time or not;
if the second-level minimum waiting time is not exceeded, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument;
if the second-level minimum waiting time is exceeded, entering a step of judging whether the effective points reach a second-level effective point threshold value;
if the number of the secondary effective points is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
if the threshold value of the secondary effective point number is reached, entering the step of judging whether the timing time exceeds the secondary maximum timeout time;
if the second-level maximum timeout time is exceeded, timing zero clearing and counting zero clearing are carried out, and then the step is returned to, and the electric field parameters of the atmospheric electric field in the target area are detected by the lightning early warning instrument;
if the secondary maximum timeout time is not exceeded, the method enters the step of screening out the peak value of the electric field intensity based on the electric field intensity of each effective point;
judging whether the electric field intensity peak value reaches the secondary minimum intensity threshold value;
if the second-level minimum intensity threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument;
if the second-level minimum intensity threshold is reached, entering the step of pushing a second-level early warning signal;
clearing the secondary early warning condition;
and entering a third-stage early warning step.
9. The lightning alerting method of claim 8, wherein the three-stage alerting step comprises:
setting three-stage early warning conditions, wherein the three-stage early warning conditions comprise three-stage minimum waiting time, three-stage maximum overtime time, three-stage early warning threshold values, three-stage effective point threshold values and three-stage minimum intensity threshold values;
detecting electric field parameters of an atmospheric electric field of a target area by using a lightning early warning instrument, wherein the electric field parameters comprise an electric field change rate and an electric field strength;
judging whether the change rate of the electric field reaches the three-level early warning threshold value or not;
if the three-level early warning threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
if the three-level early warning threshold value is reached, entering a step of recording the timing time when the electric field change rate reaches the three-level early warning threshold value;
counting the number of effective points of the electric field change rate reaching the three-level early warning threshold;
judging whether the timing time exceeds the three-level minimum waiting time or not;
if the three-level minimum waiting time is not exceeded, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument;
if the minimum waiting time of the third level is exceeded, entering a step of judging whether the effective points reach a threshold value of the effective points of the third level;
if the three-level effective point number threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by the lightning early warning instrument;
if the threshold value of the three-level effective points is reached, entering the step of judging whether the timing time exceeds the three-level maximum timeout time or not;
if the three-level maximum timeout time is exceeded, timing zero clearing and counting zero clearing are carried out, and then the step is returned to, and the electric field parameters of the atmospheric electric field in the target area are detected by the lightning early warning instrument;
if the three-level maximum timeout time is not exceeded, the method enters the step of screening out the peak value of the electric field intensity based on the electric field intensity of each effective point;
judging whether the electric field intensity peak value reaches the three-level minimum intensity threshold value;
if the three-level minimum intensity threshold value is not reached, returning to the step to detect the electric field parameters of the atmospheric electric field of the target area by using a lightning early warning instrument;
if the three-level minimum intensity threshold is reached, entering the step of pushing a three-level early warning signal;
clearing the three-level early warning condition;
and returning to the primary early warning step.
10. A lightning early warning device, characterized in that the lightning early warning device comprises:
the lightning early warning instrument is used for detecting electric field parameters of the target area;
the processor is used for realizing each program and controlling the lightning early warning instrument to carry out detection operation;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the lightning early warning device to implement the method of any one of claims 1-9.
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