CN108680798A - Lightning monitoring and early warning method and system - Google Patents
Lightning monitoring and early warning method and system Download PDFInfo
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- CN108680798A CN108680798A CN201810283156.3A CN201810283156A CN108680798A CN 108680798 A CN108680798 A CN 108680798A CN 201810283156 A CN201810283156 A CN 201810283156A CN 108680798 A CN108680798 A CN 108680798A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/12—Measuring electrostatic fields or voltage-potential
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/10—Devices for predicting weather conditions
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention discloses a kind of lightning monitoring and early warning methods, including obtain the electric field signal that atmospheric electric field detector measures；The electric field intensity value for choosing three continuous time points in electric field signal successively is pre- judgment value group；Judge whether the electric field intensity value at the last one time point in pre- judgment value group is more than predetermined threshold value；When the electric field intensity value at the last one time point in pre- judgment value group is more than predetermined threshold value, judge whether pre- judgment value group meets preset condition；When pre- judgment value group meets preset condition, issue warning signal.The present invention also correspondence discloses a kind of lightning monitoring early warning system.The present invention sets predetermined threshold value before when the electric field intensity value for measuring atmospheric electric field detector is compared with preset condition, further optimizes Lightning Warning judgment method, to substantially increase the accuracy rate based on atmospheric electric field detector equipment to Lightning Warning.
Description
Technical field
The present invention relates to Lightning Warning technical fields, and in particular to it is a kind of improve lightning monitoring pre-alerting ability method and be
System.
Background technology
With the development of economy and modern science and technology, China's power electronics, communication and aviation etc. also obtain accordingly
Development.However the thunder and lightning moment threatens the normal operation of electronic equipment, although present certain equipment have corresponding lightning protection
Device, but since lightning discharge abrupt release goes out powerful energy, if hit by strong thunder and lightning when electronic device works, lightning protection
Device tends not to play a very good protection, to cause the damage of a large amount of electronic equipments.
Damage of the people for pre- thunder-lightning to electronic equipment, establishes lightning monitoring early warning system, will come in lightning stroke
Temporarily, lightning monitoring early warning system sends out corresponding warning information, and people take certain measure according to warning information, such as closes
The instrument and equipment to work, outdoor work personnel properly protect in time, will efficiently reduce the loss that lightning stroke is brought.Now
Lightning monitoring early warning system be mostly based on threshold method to carry out early warning, this method for early warning, only by judging electric field intensity value
Whether early warning is carried out more than predetermined threshold value, often so that empty alarm rate is high.Existing lightning monitoring early warning system is default simultaneously
It tends not to correct after threshold value setting, when system environments changes for some reason, also need manually to predetermined threshold value
It modifies, is not easy to operate.
It therefore, now need a kind of lightning monitoring and early warning method judging precision higher and automatically updated Rule of judgment.
Invention content
The technical problem of being solved of the invention is that existing lightning monitoring early warning system carries out early warning, thunder only with threshold method
The low problem of electric early warning accuracy rate.
In order to solve the above technical problem, the present invention provides a kind of lightning monitoring and early warning methods, including：
Obtain the electric field signal that atmospheric electric field detector measures；
The electric field intensity value for choosing three continuous time points in the electric field signal successively is pre- judgment value group；Described in judgement
Whether the electric field intensity value at the last one time point is more than or equal to predetermined threshold value in pre- judgment value group；
When the electric field intensity value at the last one time point in the pre- judgment value group is more than or equal to the predetermined threshold value, sentence
Whether the pre- judgment value group of breaking meets preset condition；
When the pre- judgment value group meets preset condition, issue warning signal.
Preferably, the preset condition includes first condition, and the first condition is the electric field strength of pre- judgment value group
Value is incremented by successively in chronological order or successively decreases successively.
Preferably, the preset condition further includes second condition, and the second condition is phase in the pre- judgment value group
The absolute value of the difference of the electric field intensity value at adjacent two time points is more than or equal to default electric field change value.
Preferably, further include counting the accuracy rate of the alarm signal in preset time, and institute is adjusted according to statistical result
State predetermined threshold value and the default electric field change value.
Preferably, the predetermined threshold value includes level-one threshold value, secondary threshold and three-level threshold value, the default electric field change
Value includes level-one electric field change value, secondary electric field changing value and three-level electric field change value；The pre-warning signal includes level-one alarm
Signal, secondary alarm signal and three-level alarm signal, the predetermined threshold value, the default electric field change value and early warning letter
Number for one-to-one relationship successively.
Preferably, judge whether the electric field intensity value at the last one time point in the pre- judgment value group is more than default threshold
Value step specifically includes：
Judge whether the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to three-level threshold value, two successively
Grade threshold value and level-one threshold value.
Preferably, when the electric field intensity value at the last one time point in the pre- judgment value group is more than or equal to described preset
When threshold value, judge whether the pre- judgment value group meets preset condition step and be specially：
When judging that the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to three-level threshold value, judge pre-
Whether judgment value group meets the first condition, and judges the electric field intensity value at two neighboring time point in the pre- judgment value group
Absolute value of the difference whether be more than or equal to three-level electric field change value；
When judging that the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to secondary threshold, judge pre-
Whether judgment value group meets the first condition, and judges the electric field intensity value at two neighboring time point in the pre- judgment value group
Absolute value of the difference whether be more than or equal to secondary electric field changing value；
When judging that the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to level-one threshold value, judge pre-
Whether judgment value group meets the first condition, and judges the electric field intensity value at two neighboring time point in the pre- judgment value group
Absolute value of the difference whether be more than or equal to level-one electric field change value.
Preferably, when the pre- judgment value group meets preset condition, issuing warning signal step is specially：
When pre- judgment value group meets the first condition, and in the pre- judgment value group two neighboring time point electric-field strength
When the absolute value of the difference of angle value is more than or equal to three-level electric field change value, three-level alarm signal is sent out；
When pre- judgment value group meets the first condition, and in the pre- judgment value group two neighboring time point electric-field strength
When the absolute value of the difference of angle value is more than or equal to secondary electric field changing value, secondary alarm signal is sent out；
When pre- judgment value group meets the first condition, and in the pre- judgment value group two neighboring time point electric-field strength
When the absolute value of the difference of angle value is more than or equal to level-one electric field change value, level-one alarm signal is sent out.
According to another aspect of the present invention, provide a kind of lightning monitoring early warning system, including atmospheric electric field detector and
The warning device being connect with atmospheric electric field detector, the atmospheric electric field detector include atmospheric electric field detector ontology and are set to the atmospheric electricity
The field intrinsic data processor of instrument and the computer readable storage medium for being stored with computer program, the computer program can
It is executed by the data processor to complete all steps in above-mentioned lightning monitoring and early warning method.
Preferably, the lightning monitoring early warning system includes multiple atmospheric electric field detectors.
Compared with prior art, one or more of said program embodiment can have the following advantages that or beneficial to effect
Fruit：
Using lightning monitoring and early warning method provided in an embodiment of the present invention, by the electric-field strength for judging three continuous time points
Whether angle value meets predetermined threshold value, whether to judge electric field intensity value it is necessary to be compared with preset condition, i.e., by air
After when the electric field intensity value that electric field instrument measures is compared with predetermined threshold value, preset condition, only electric field strength are also set
Electric field intensity value therein is just compared by value after meeting predetermined threshold value with preset condition, judges whether it sends out early warning letter
Number, by reasonably limiting more Rule of judgment, Lightning Warning judgment method is further optimized, base is substantially increased
In atmospheric electric field detector equipment to the accuracy rate of Lightning Warning, rate of false alarm is reduced, the confidence level of whole system is improved, it is more effective accurate
Ground carries out Lightning Warning using atmospheric electric field data.Simultaneously by automatically updating preset condition and predetermined threshold value so that thunder and lightning is supervised
Detection early warning system can also accurately send out alarm signal when system environments changes, and further increase and set in monitoring region
The quality monitoring ability of received shipment row, or weather warning forecast provides decision-making foundation, is risen to the development of China's meteorological cause
Positive facilitation is arrived.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification
It is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages can be by wanting in specification, right
Specifically noted structure is sought in book and attached drawing to realize and obtain.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example and is used together to explain the present invention, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 shows the step schematic diagram of lightning monitoring and early warning method in the embodiment of the present invention one；
Fig. 2 shows the structural schematic diagrams of lightning monitoring early warning system in the embodiment of the present invention two.
Specific implementation mode
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to be applied to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technique effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other,
It is formed by technical solution within protection scope of the present invention.
With the development of science and technology, China's power electronics, communication and aviation etc. obtain development energetically, accordingly
The setting of the equipment such as electron electric power gradually increases.Damage for pre- thunder-lightning to electronic equipment, on existing electronic equipment
It is provided with corresponding lightning protection device, but these lightning protection devices tend not to big energy thunder and lightning prevent in advance.Therefore in order to more preferable
Prevent pre- thunder and lightning, accordingly establish lightning monitoring early warning system, will come in lightning stroke interim, lightning monitoring early warning system sends out phase
The warning information answered, people take certain measure according to warning information, such as close the instrument and equipment to work, outdoor work
Personnel properly protect in time, will efficiently reduce the loss that lightning stroke is brought.However existing lightning monitoring early warning system is most
Threshold method is based only upon to carry out early warning, this kind of method for early warning often causes empty alarm rate high since early-warning conditions are simple.It cannot
Play fine forewarning function.
Embodiment one
To solve the above-mentioned technical problems in the prior art, an embodiment of the present invention provides a kind of lightning monitoring early warning
Method.
As shown in Figure 1, being the step schematic diagram of lightning monitoring and early warning method in the embodiment of the present invention one；Referring to Fig.1, this reality
A lightning monitoring and early warning method is applied to include the following steps：
Step S101：Obtain the electric field signal that atmospheric electric field detector measures.
Specifically, atmospheric electric field detector is arranged in advance in the position for needing to be monitored thunder and lightning, regular acquisition air
The electric field signal in preset time that electric field instrument measures, the electric field signal are the collection that the electric field intensity value in stipulated time section is constituted
It closes.Preferably, stipulated time section can be set to 1 second, while sets the time interval for obtaining electric field signal to 1 second, then may be used
It realizes that whole day is continual to be monitored thunder and lightning.
Electric field strength will once be monitored it should be noted that existing atmospheric electric field detector is usually per second, therefore
Atmospheric electric field detector is per second to can be obtained an electric field intensity value.But the frequency that atmospheric electric field detector is monitored electric field strength is unlimited
In this, the atmospheric electric field detector of other monitoring frequencies is also applied for the acquisition modes.Simultaneously in order to preferably be monitored to thunder and lightning,
Can also stipulated time section be set to other rational numerical value, and the electric field signal that intermittent can be obtained atmospheric electric field detector and measure,
The present invention is similarly not so limited to.
Step S102：The electric field intensity value for choosing three continuous time points in electric field signal successively is pre- judgment value group.
Specifically, the electric field intensity value that three continuous time points are chosen from electric field signal is pre- judgment value group, and will choosing
The pre- judgment value group taken is sent to the step under connecing, and the step under connecing handles pre- judgment value group, after the completion of processing, same
The electric field intensity value for choosing the other three continuous time point in one electric field signal successively is pre- judgment value group, and is sent to again
Step under connecing judged, and so on, it has all been selected until by the electric field intensity value in the electric field signal.Preferably, it is
Realization thunder and lightning is preferably monitored, and pre- judgment value group chosen from first electric field intensity value in electric field signal.Together
When in order to preferably be illustrated to pre- judgment value group, be below a kind of detailed process of selection mode：First from electric field signal
In the electric field intensity value at first time point start, choose the electric field intensity value of three continuous time points, that is, choose electric field letter
The electric field intensity value at first three time point in number is pre- judgment value group.Pre- judgment value is then sent to the step under connecing, is connect down
The step of judgement group in advance is handled, after the completion of the processing of pre- judgement group, second time point from same electric field signal
Electric field intensity value starts, and the electric field intensity value for choosing three continuous time points is new pre- judgment value group, and by new pre- judgement
Value group is sent to connect under step judged, and so on, until by the electric field signal electric field intensity value all chosen.
Step S103：Judge whether the electric field intensity value at the last one time point in pre- judgment value group is more than predetermined threshold value.
Specifically, predetermined threshold value includes level-one threshold value, secondary threshold and three-level threshold value, and threshold value increases step by step, i.e. three-level
Threshold value is more than secondary threshold, and secondary threshold is more than level-one threshold value.By the electric-field strength at the last one time point in pre- judgment value group
Angle value is compared with predetermined threshold value successively.Further, by the electric-field strength at the last one time point in pre- judgment value group
Angle value is compared with three-level threshold value, then will be pre- when the electric field intensity value at the last one time point is more than or equal to three-level threshold value
Judgment value group preset condition corresponding with three-level threshold value is judged.When the last one time point electric field intensity value be more than etc.
In secondary threshold and less than three-level threshold value when, then pre- judgment value group preset condition corresponding with secondary threshold is judged.
When the electric field intensity value at the last one time point is more than or equal to level-one threshold value and less than secondary threshold, then by pre- judgment value group
Preset condition corresponding with level-one threshold value is judged.
Step S104：When the electric field intensity value at the last one time point in pre- judgment value group is more than predetermined threshold value, judge
Whether pre- judgment value group meets preset condition.
Specifically, preset condition includes first condition and second condition, and first condition is that the electric field value of pre- judgment value group is pressed
Time sequencing is incremented by successively or successively decreases successively；Second condition is the difference of the electric field value at two neighboring time point in pre- judgment value group
Absolute value is more than default electric field change value.Default electric field change value includes level-one electric field change value, secondary electric field changing value simultaneously
With three-level electric field change value, and predetermined threshold value and default electric field change value correspond.Further, when judging pre- judgment value group
In the last one time point electric field intensity value be more than or equal to three-level threshold value when, judge whether pre- judgment value group meets first
Part, and judge whether the absolute value of the difference of the electric field intensity value at two neighboring time point in pre- judgment value group is more than or equal to three-level electricity
Field changing value；When pre- judgment value group meets first condition, and in pre- judgment value group two neighboring time point electric field intensity value it
When absolute value of the difference is more than or equal to three-level electric field change value, then judge that the probability that thunder and lightning occurs is very big, while sending out to prior-warning device
Go out corresponding signal.Otherwise the electric field intensity value for being classified as the last one time point in pre- judgment value group is more than or equal to two level
In the case of threshold value, continue to judge it.When judging that the electric field intensity value at the last one time point in pre- judgment value group is big
When equal to secondary threshold, when judging whether pre- judgment value group meets first condition, and judging two neighboring in pre- judgment value group
Between the absolute value of the difference of electric field intensity value put whether be more than or equal to secondary electric field changing value；When pre- judgment value group meets first
Part, and the absolute value of the difference of the electric field intensity value at two neighboring time point is more than or equal to secondary electric field changing value in pre- judgment value group
When, then judge that the probability that thunder and lightning occurs belongs to medium rank, while corresponding signal is sent out to prior-warning device.Otherwise sorted out
For the last one time point in pre- judgment value group electric field intensity value be more than or equal to level-one threshold value in the case of, continue to carry out it
Judge.When judging that the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to level-one threshold value, judge to prejudge
Whether disconnected value group meets first condition, and judges the absolute of the difference of the electric field intensity value at two neighboring time point in pre- judgment value group
Whether value is more than or equal to level-one electric field change value；When pre- judgment value group meets first condition, and it is two neighboring in pre- judgment value group
When the absolute value of the difference of the electric field intensity value at time point is more than or equal to level-one electric field change value, then the probability category that thunder and lightning occurs is judged
Corresponding signal is sent out in low rank, while to prior-warning device.Otherwise alarm signal is not sent out, pre- judgement group judges to complete,
Step S102 again chooses judgement group in advance.
In order to further be illustrated to the deterministic process, it is assumed that the electric field intensity value in pre- judgment value group is temporally
Sequencing be respectively V1, V2 and V3, when the electric field intensity value at the last one time point in pre- judgement group is more than or equal to three-level
Threshold value and (V1-V2) × (V2-V3)>0, (V1-V2)>△ V3, (V2-V3)>When △ V3, then the probability of generation thunder and lightning is judged very
Greatly, while to prior-warning device corresponding signal is sent out；When the electric field intensity value at the last one time point is less than three-level threshold value, but it is big
In equal to secondary threshold and (V1-V2) × (V2-V3)>0, (V1-V2)>△ V2, (V2-V3)>When △ V2, then judge that thunder and lightning occurs
Probability belong to medium rank, while sending out corresponding signal to prior-warning device；When the electric field intensity value at the last one time point
Less than secondary threshold, but simultaneously greater than it is equal to level-one threshold value and (V1-V2) × (V2-V3)>0, (V1-V2)>△ V1, (V2-V3)>
When △ V1, then judge that the probability that thunder and lightning occurs belongs to low rank, while corresponding signal is sent out to prior-warning device；If being unsatisfactory for
When above-mentioned condition, then pre- judgement group judges to complete, and step S102 again chooses judgement group in advance.Step S105：Work as anticipation
When disconnected value group meets preset condition, issue warning signal.
Specifically, the pre-warning signal of prior-warning device includes level-one alarm signal, secondary alarm signal and three-level alarm signal,
Default electric field change value includes level-one electric field change value, secondary electric field changing value and three-level electric field change value, is believed respectively with early warning
Number level-one alarm signal, secondary alarm signal and three-level alarm signal correspond respectively.The higher expression of alarm signal series
The probability that thunder and lightning occurs is bigger, i.e., the urgency level that need to be prevented thunder and lightning is higher.When the pre- judgment value for meeting preset condition
When the electric field intensity value at the last one time point in group is more than or equal to three-level electric field change value, prior-warning device sends out three-level alarm
Signal, when the electric field intensity value at the last one time point is more than or equal to secondary electric field changing value, prior-warning device sends out two level report
Alert signal, when the electric field intensity value at the last one time point is more than or equal to level-one electric field change value, prior-warning device sends out level-one
Alarm signal.It should be noted that pre-warning signal can continue the preset duration after sending out, and when pre- within this time
When alarm device receives new pre-warning signal, prior-warning device sends out new pre-warning signal, is persistently preset with stylish pre-warning signal
Duration, to play good warning function.
Step S106：The accuracy rate of the alarm signal in preset time is counted, and predetermined threshold value is adjusted according to statistical result
With default electric field change value.
Specifically, the accuracy rate for counting alarm signal in preset time is tied when accuracy rate is less than preset value according to statistics
Fruit adjusts preset condition and predetermined threshold value.Further, preset time is set as one month, counts alarm signal in one month
Accuracy rate, when accuracy rate be less than preset value when, by atmospheric electric field detector first time occur thunder and lightning when measure data based on,
Predetermined threshold value and default electric field change value are calculated, the predetermined threshold value being calculated and default electric field change value are replaced into former default threshold
Value and default electric field change value, and according to being adjusted later to it to the statistical result of alarm signal accuracy rate.It is specific to adjust
Haveing suffered journey is：When statistical result showed alarm signal, which shifts to an earlier date more time, is alarmed, existing predetermined threshold value is increased by one
The value of a threshold value span amount, threshold value span amount can be 500V/M；It is carried out when statistical result showed alarm signal shifts to an earlier date less time
When alarm, existing default electric field change value is increased to the value of a change rate span amount, change rate span amount can be 50V/M；
When statistical result showed alarm signal lags more time, existing predetermined threshold value is reduced plus threshold value span amount
Existing default electric field change value is reduced by a change rate by value when statistical result showed alarm signal lags less time
The value of span amount；It repeats to adjust, until accuracy rate is not less than preset value.Preferably, preset value can be 90%.
Become it should be noted that starting predetermined threshold value and default electric field change value are the predetermined threshold value of acquiescence and default electric field
Change value, give tacit consent to preset electric field change value be respectively level-one electric field change value be 200V/M, secondary electric field changing value be 400V/M, three
Grade electric field change value is 500V/M, and predetermined threshold value is respectively that three-level threshold value is 8000V/M, secondary threshold 5000V/M, level-one threshold
Value is 3000V/M.By the statistics to alarm signal accuracy rate in preset time, predetermined threshold value and default electric field change are adjusted
Value further improves thunder and lightning detection pre-alerting ability so that lightning monitoring early warning system is when system environments changes
Alarm signal can also accurately be sent out.
Using the application lightning monitoring and early warning method, by the electric field intensity value for measuring atmospheric electric field detector and default threshold
Preset condition is set before when value is compared, Lightning Warning judgment method is further optimized, to substantially increase
Based on atmospheric electric field detector equipment to the accuracy rate of Lightning Warning, rate of false alarm is reduced, the confidence level of thunder and lightning detection early warning is improved, more has
Effect accurately carries out Lightning Warning using atmospheric electric field data, while also improving the quality prison of monitoring section device within the domain operation
Control can be forecast to provide decision-making foundation for weather warning, positive facilitation is played to the development of China's meteorological cause.
Embodiment two
To solve the above-mentioned technical problems in the prior art, it is pre- that the embodiment of the present invention additionally provides a kind of lightning monitoring
Alert system.
Fig. 2 shows the structural schematic diagrams of lightning monitoring early warning system in the embodiment of the present invention two；With reference to Fig. 2, this implementation
The multiple atmospheric electric field detectors of example and warning device, atmospheric electric field detector are connect with warning device, and atmospheric electric field detector includes atmospheric electric field
It instrument ontology and is set to the intrinsic data processor of atmospheric electric field detector and is stored with the computer-readable storage of computer program
Medium.
Computer program can be executed by data processor to complete following steps：
Step S201：Obtain the electric field signal that atmospheric electric field detector measures.
Specifically, atmospheric electric field detector is arranged in advance in the position for needing to be monitored thunder and lightning, regular acquisition air
The electric field signal in preset time that electric field instrument measures, the electric field signal are the collection that the electric field intensity value in stipulated time section is constituted
It closes.Wherein, the process for further obtaining the electric field signal of atmospheric electric field detector measured is identical as embodiment one, does not exist herein
It is repeated.
Step S202：The electric field intensity value for choosing three continuous time points in electric field signal successively is pre- judgment value group.
Specifically, the electric field intensity value that three continuous time points are chosen from electric field signal is pre- judgment value group, and will choosing
The pre- judgment value group taken is sent to the step under connecing, and the step under connecing handles pre- judgment value group, after the completion of processing, same
The electric field intensity value for choosing the other three continuous time point in one electric field signal successively is pre- judgment value group, and is sent to again
Step under connecing judged, and so on, it has all been selected until by the electric field intensity value in the electric field signal.Wherein, it chooses
The detailed process of pre- judgment value group is identical as embodiment one, and in this not go into detail.
Step S203：Judge whether the electric field intensity value at the last one time point in pre- judgment value group is more than predetermined threshold value.
Wherein, predetermined threshold value includes level-one threshold value, secondary threshold and three-level threshold value, and threshold value increases step by step.It will judge in advance
The electric field intensity value at the last one time point in value group is compared with predetermined threshold value successively.Specifically, by pre- judgment value group
In the electric field intensity value at the last one time point be compared with three-level threshold value, when the electric field intensity value at the last one time point
When more than or equal to three-level threshold value, then pre- judgment value group preset condition corresponding with three-level threshold value is judged.When last
When the electric field intensity value at a time point is more than or equal to secondary threshold, then by pre- judgment value group default item corresponding with secondary threshold
Part is judged.When the electric field intensity value at the last one time point is more than or equal to level-one threshold value, then by pre- judgment value group and one
The grade corresponding preset condition of threshold value is judged.
Step S204：When the electric field intensity value at the last one time point in pre- judgment value group is more than predetermined threshold value, judge
Whether pre- judgment value group meets preset condition.
Specifically, preset condition includes first condition and second condition, and first condition is that the electric field value of pre- judgment value group is pressed
Time sequencing is incremented by successively or successively decreases successively；Second condition is the difference of the electric field value at two neighboring time point in pre- judgment value group
Absolute value is more than default electric field change value.Default electric field change value includes level-one electric field change value, secondary electric field changing value simultaneously
With three-level electric field change value, and predetermined threshold value and default electric field change value correspond.Wherein, judge whether pre- judgment value group accords with
The detailed process for closing preset condition is identical as embodiment one, no longer repeats herein it.
Step S205：When pre- judgment value group meets preset condition, issue warning signal.
Specifically, the pre-warning signal of prior-warning device includes level-one alarm signal, secondary alarm signal and three-level alarm signal,
Default electric field change value includes level-one electric field change value, secondary electric field changing value and three-level electric field change value, is believed respectively with early warning
Number level-one alarm signal, secondary alarm signal and three-level alarm signal correspond respectively.The higher expression of alarm signal series
The probability that thunder and lightning occurs is bigger, i.e., the urgency level that need to be prevented thunder and lightning is higher.When the pre- judgment value for meeting preset condition
When the electric field intensity value at the last one time point in group is more than or equal to corresponding electric field change value, prior-warning device is sent out accordingly
Alarm signal.Wherein, the detailed process for sending out corresponding alarm signal is identical as embodiment one, no longer goes to live in the household of one's in-laws on getting married herein to it
It states.
Step S206：The accuracy rate of the alarm signal in preset time is counted, and predetermined threshold value is adjusted according to statistical result
With default electric field change value.
Specifically, the accuracy rate for counting alarm signal in preset time is tied when accuracy rate is less than preset value according to statistics
Fruit adjusts preset condition and predetermined threshold value.It is identical as embodiment one to the specific adjustment process of preset condition and predetermined threshold value,
This no longer repeats it.
Using lightning monitoring early warning system provided in an embodiment of the present invention, by the electric-field strength for measuring atmospheric electric field detector
Predetermined threshold value is set before when angle value is compared with preset condition, further optimizes Lightning Warning judgment method, from
And the accuracy rate based on atmospheric electric field detector equipment to Lightning Warning is substantially increased, rate of false alarm is reduced, thunder and lightning is improved and detects early warning
Confidence level, more effectively accurately carry out Lightning Warning using atmospheric electric field data, while also improving monitoring section device within the domain
The quality monitoring of operation can be forecast to provide decision-making foundation for weather warning, be played to the development of China's meteorological cause positive
Facilitation.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not limited to the present invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But protection scope of the present invention still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of lightning monitoring and early warning method, including：
Obtain the electric field signal that atmospheric electric field detector measures；
The electric field intensity value for choosing three continuous time points in the electric field signal successively is pre- judgment value group；Judge the anticipation
Whether the electric field intensity value at the last one time point is more than or equal to predetermined threshold value in disconnected value group；
When the electric field intensity value at the last one time point in the pre- judgment value group is more than or equal to the predetermined threshold value, institute is judged
State whether pre- judgment value group meets preset condition；
When the pre- judgment value group meets preset condition, issue warning signal.
2. according to the method described in claim 1, it is characterized in that, the preset condition includes first condition, the first condition
Electric field intensity value for pre- judgment value group is incremented by successively in chronological order or successively decreases successively.
3. according to the method described in claim 2, it is characterized in that, the preset condition further includes second condition, the Article 2
Part is that the absolute value of the difference of the electric field intensity value at two neighboring time point in the pre- judgment value group is more than or equal to default electric field change
Change value.
4. according to the method described in claim 3, it is characterized in that, further include count preset time in alarm signal it is accurate
Rate, and the predetermined threshold value and the default electric field change value are adjusted according to statistical result.
5. according to the method described in claim 4, it is characterized in that, the predetermined threshold value includes level-one threshold value, secondary threshold and three
Grade threshold value, the default electric field change value includes level-one electric field change value, secondary electric field changing value and three-level electric field change value；Institute
It includes level-one alarm signal, secondary alarm signal and three-level alarm signal, the predetermined threshold value, the default electricity to state pre-warning signal
Field changing value and the pre-warning signal are one-to-one relationship successively.
6. according to the method described in claim 5, it is characterized in that, judge the electricity at the last one time point in the pre- judgment value group
Whether field intensity value specifically includes more than predetermined threshold value step：
Judge whether the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to three-level threshold value, two level threshold successively
Value and level-one threshold value.
7. according to the method described in claim 6, it is characterized in that, when the electric field at the last one time point in the pre- judgment value group
When intensity value is more than or equal to the predetermined threshold value, judge whether the pre- judgment value group meets preset condition step and be specially：
When judging that the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to three-level threshold value, pre- judgement is judged
Whether value group meets the first condition, and judges the difference of the electric field intensity value at two neighboring time point in the pre- judgment value group
Absolute value whether be more than three-level electric field change value；
When judging that the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to secondary threshold, pre- judgement is judged
Whether value group meets the first condition, and judges the difference of the electric field intensity value at two neighboring time point in the pre- judgment value group
Absolute value whether be more than secondary electric field changing value；
When judging that the electric field intensity value at the last one time point in pre- judgment value group is more than or equal to level-one threshold value, pre- judgement is judged
Whether value group meets the first condition, and judges the difference of the electric field intensity value at two neighboring time point in the pre- judgment value group
Absolute value whether be more than level-one electric field change value.
8. according to the method described in claim 7, it is characterized in that, when the pre- judgment value group meets preset condition, send out pre-
Warning signals step is specially：
When pre- judgment value group meets the first condition, and in the pre- judgment value group two neighboring time point electric field intensity value
Absolute value of the difference be more than or equal to three-level electric field change value when, send out three-level alarm signal；
When pre- judgment value group meets the first condition, and in the pre- judgment value group two neighboring time point electric field intensity value
Absolute value of the difference be more than or equal to secondary electric field changing value when, send out secondary alarm signal；
When pre- judgment value group meets the first condition, and in the pre- judgment value group two neighboring time point electric field intensity value
Absolute value of the difference be more than or equal to level-one electric field change value when, send out level-one alarm signal.
9. a kind of lightning monitoring early warning system, it is characterized in that, including atmospheric electric field detector and the alarm that is connect with atmospheric electric field detector
Device, the atmospheric electric field detector include atmospheric electric field detector ontology and are set to the intrinsic data processing of the atmospheric electric field detector
Device and the computer readable storage medium for being stored with computer program, the computer program can be executed by the data processor
To complete the step in the lightning monitoring and early warning method described in any one of the claims 1-8.
10. system according to claim 9, it is characterized in that, the lightning monitoring early warning system includes multiple air
Electric field instrument.
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