CN103713338B - A kind of automatic production record and recording method thereof in thunderstorm day being applied to meteorological station - Google Patents
A kind of automatic production record and recording method thereof in thunderstorm day being applied to meteorological station Download PDFInfo
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Abstract
A kind of automatic production record and recording method thereof in thunderstorm day being applied to meteorological station, system comprises a self-recording unit and remote server in one or more in thunderstorm day, thunderstorm day, self-recording unit comprised electric field plate aerial, microphone array, solar panel, gps antenna, terminal and support, and electric field plate aerial, microphone array, solar panel, gps antenna, terminal are installed on support; The microphone that microphone array is distributed on the planar rondure array of described support certain distance by several Symmetric mean forms; Thunderstorm day, self-recording unit was communicated with 3G network by 3G communication module, and meanwhile, remote server is connected to 3G network by INTERNET network.Beneficial effect of the present invention: automatically record thunder and lightning time of origin and orientation, and lightning data is issued remote server, remote server adds up beginning and ending time of each Thundercloud and beginning, termination direction, and the thunderstorm day in year in area under one's jurisdiction, calculating observation station; With low cost, simple and reliable.
Description
Technical field
The present invention relates to nature lightning Monitoring and protection technical field, particularly a kind of automatic production record and recording method thereof in thunderstorm day being applied to meteorological station.
Background technology
As important foundation data of existing lightening protection engineering field and weather service, lightning parameter (as thunderstorm day, thunder and lightning frequency, thunder and lightning density etc.) directly can show the strong and weak feature of a certain region lightening activity.And parameter in thunderstorm day wherein uniquely has long record and in the widely used basic data of existing engineering field, have important value at present.This parameter in thunderstorm day has just been widely used in " Code for design of lightning protection of buildings " (GB50057-2010), as:
" the annual density of the earth that is A.0.2 struck by lightning, first should determine by local observatory, the data of station; If without this data, can be calculated as follows.
Ng=0.1×Td (A.0.2)
In formula: Td-annual thunderstorm day, determine (d/a) according to local observatory, the data of station.”
Know according to applicant's inquiry, " surface weather observation specification " the 4th part: in weather phenomenon observation (QX/T48-2007), the recording mode in thunderstorm day is specified:
" (9) thunderstorm should differentiate its system from entirety, records its beginning and ending time and beginning, termination direction, must guard against messy record ".
The observation of thunderstorm and record normally relies on observation person whether to hear thunder is to record time of origin and the relative orientation of thunderstorm, as long as namely the thunder to hear in 1 day 1 time or more counts 1 thunderstorm day, i.e. artificial thunderstorm day.Depend on the subjective judgement of observation person artificial thunderstorm day, relevant with environment to thunder susceptibility, hearing ability, residing landform with him.External scientific research shows, the people that hearing is good can hear the thunder beyond 20km, and the thunder that the bad people 5km place of hearing occurs all be can't hear, thus the mode causing existing manual record thunderstorm day is objective and accurate not.Meanwhile, in the general weather station of country owing to not having 24h watch system, nocturnal thunder and lightning is easy to error of omission, and thunderstorm days also can be caused to be less than the number of days of actual generation thunder and lightning.So the method and apparatus being badly in need of a kind of automatic record thunderstorm day carrys out alternative manual record.
The application documents of number of patent application 201110000685.6 provide the device in a kind of automatic thunderstorm day in record year, automatically can record time and the number of times of thunderstorm generation, and pass through the thunderstorm day in year in area under one's jurisdiction, software calculating observation station.And according to the requirement of " surface weather observation specification ", the defect of this device is just, this device lacks the method and function that distinguish thunderstorm orientation, so, the effect in alternative manual record thunderstorm day can not be played.
Separately according to the knowledge of the applicant, employ gridding method in document " Statistical Method of Thunderstorm Day " and lightning location system automatic monitoring data is added up, achieve the unartificial statistics to parameter in thunderstorm day.But no matter be the data in thunderstorm day used by lightning protection engineering such as Lightning Disaster risk assessment or selecting address on building, all require the Climatological mean situation on reflecting history, therefore by monitoring materials for many years.The defect of the method is just, the year number of zonal lighting location data accumulation is short, the reference under existing lightning Protection Design code for ease of weather service and lightening protection engineering field, still need to analyze by data prolongation gridding method in meteorological thunderstorm day the data in thunderstorm day that lighting location data obtains, and the data in meteorological thunderstorm day of long term accumulation is the unique scale determining that in gridding method, sizing grid is chosen.In addition, gridding method can not avoid part meteorological station observation station to be in the irrationality at grid edge.
The parameter in thunderstorm day of long term accumulation has important value for Lightning Protection Engineering Design and meteorological historical data research, in the future also can the lightning parameter new with other depositing.Therefore, improve its monitoring means, improving its statistical method is top priority.
Summary of the invention
The technical problem to be solved in the present invention is, for existing lightning monitoring above shortcomings, a kind of automatic production record and recording method thereof in thunderstorm day being applied to meteorological station is provided, the time of origin of automatic record thunder and lightning and orientation, and lightning data is sent to remote server, remote server counts beginning and ending time of each Thundercloud and beginning, termination direction, and can calculate the thunderstorm day in year in area under one's jurisdiction, research station.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
Be applied to an automatic production record in thunderstorm day for meteorological station, comprise a self-recording unit and remote server in one or more in thunderstorm day,
Described thunderstorm day, self-recording unit comprised electric field plate aerial, microphone array, solar panel, gps antenna, terminal and support, and described electric field plate aerial, microphone array, solar panel, gps antenna, terminal are installed on support, described electric field plate aerial is for detecting electric field signal when thunder and lightning occurs, and the microphone that described microphone array is distributed on the planar rondure array of described support certain distance by several Symmetric mean forms, described terminal comprises modulate circuit, single-shot trigger circuit, AND circuit, power-supply controller of electric module, accumulator and communications records unit, described modulate circuit is made up of amplifier and wave filter, described communications records unit is by gps time module, central processing module, 3G communication module and memory module composition, described electric field plate aerial is through modulate circuit, single-shot trigger circuit is connected with an input end of each AND circuit, each microphone array described is respectively through modulate circuit, single-shot trigger circuit connects with another input end of a corresponding road AND circuit, the output terminal of each AND circuit is all connected to central processing module, described gps antenna is connected with central processing module by gps time module, described solar panel is connected with central processing module respectively by power-supply controller of electric module with accumulator, described 3G communication module is connected with central processing module respectively with memory module,
Described thunderstorm day, self-recording unit was communicated with 3G network by 3G communication module, simultaneously, described remote server is connected to 3G network by INTERNET network, for receiving thunderstorm data that each thunderstorm day current, self-recording unit was uploaded and calling and check the historical data be kept in self-recording unit in described thunderstorm day.
By such scheme, described thunderstorm day, self-recording unit was set up in the observation station of each meteorological station according to networking plan, and each, self-recording unit all set unique identification code in thunderstorm day.
By such scheme, the microphone that described microphone array is 15Hz ~ 20kHz by 8 frequency ranges forms, and 1-8# microphone Symmetric mean distribution (angle is 45 ° between two) is in the planar rondure array distal portion around described holder radius 0.5m.
By such scheme, described 1-8# microphone by arranged clockwise, 1# microphone be positioned at just to north orientation, 2# microphone just to North-East Bound, 3# microphone just to east orientation, 4# microphone just to the southeast to, 5# microphone just to south orientation, 6# microphone just to southwest to, 7# microphone just to west to, 8# microphone just to north-westward.
Present invention also offers one utilizes above-mentioned thunderstorm day automatic production record to carry out self registering method in thunderstorm day, and the method comprises the following steps:
1) when there being thunder and lightning to occur, electric field plate aerial receives the electric field signal produced when thunder and lighting process occurs, electric field signal is after the amplification, filtering operation of modulate circuit, enter the single-shot trigger circuit be connected with modulate circuit, once exceed the activation threshold value that single-shot trigger circuit presets ,+5V window level the signal of single-shot trigger circuit just output duration t is to the AND circuit be attached thereto;
2) after thunder and lightning electric field signal receives, the accurate microphone in 8 tunnels of microphone array also receives thunder signal, after the amplification of modulate circuit that thunder signal is connected respectively through corresponding with each road microphone, filtering operation, enter the single-shot trigger circuit be connected with modulate circuit respectively, once exceed the activation threshold value that single-shot trigger circuit presets, single-shot trigger circuit just output duration is that+5V window level the signal of 300ms is to the AND circuit be attached thereto;
3) 8 tunnels are because of+5V the window level of the 300ms of thunder signal triggering generation with because+5V the window level of the duration t of thunder and lightning electric field signal triggering generation is respectively through after a road AND circuit, enter central processing module, central processing module, once detect that the input end be connected with 8 tunnel AND circuit has rising edge signal to produce, just records the GPS stamp time of 8 road window level rising edge time respectively;
4) based on 8 road GPS stamp times, central processing module, by the thunder and lightning orientation analysis algorithm of write, automatically calculates beginning and ending time and the orientation of this thunder and lightning generation, and is saved in certain data layout in the memory module of described communications records unit.
By such scheme, the span of described t is determined according to the distance between meteorological station or networking plan: by the velocity of propagation of the erection distance between thunderstorm day self-recording unit in meteorological station or other networking plans divided by sound, the value of t can be obtained, wherein, the velocity of propagation of sound gets 340m/s.
By such scheme, the described GPS stamp time, central processing module receives 8 road rising edge signal respectively while, the sequencing entering central processing module by rising edge signal exports trigger pip to gps time module, gps time module provides accurate gps time this moment, form is: 130808092955.154376541, when representing 13 on August 8,9 29 points 55 seconds, be accurate to 10
-9s.
By such scheme, described thunder and lightning orientation analysis algorithm is as follows: first, is compared 8 road GPS stamp times, obtains the road GPS stamp time the earliest, and this stamp time is the initial time of origin of thunder and lightning; Then, find corresponding to the GPS stamp time of this road be in No. 8 microphones which input, according to thunderstorm day self-recording unit erection time agreement microphone point to, obtain the orientation of this thunder and lightning.
Beneficial effect of the present invention:
1, a kind of self-recording unit structure in thunderstorm day being applied to meteorological station is simple, compact, with low cost, 3G wireless network is adopted to carry out data transmission, utilize sun power self-powered, the meteorological station that can be set up in easily needs to obtain thunderstorm days certificate carries out long-term Continuous Observation;
Electric field signal adjoint when 2, utilizing thunder and lightning to occur and thunder signal, as criterion, just carry out record when two kinds of signals occur simultaneously, improve the accuracy of data;
3, the self-recording unit in thunderstorm day being distributed in each meteorological station carries out networking observation, can realize the parametric statistics in thunderstorm day in year in a certain region;
4 ,+5V window level duration the t triggered because of electric field signal can set flexibly according to networking plan, effectively can improve areal coverage and avoid Data duplication rate.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of self-recording unit in thunderstorm day of the present invention;
Fig. 2 is the functional-block diagram of self-recording unit in thunderstorm day of the present invention;
Fig. 3 be the present invention be applied to meteorological station thunderstorm day automatic production record general frame figure;
Fig. 4 is the workflow diagram of automatic record method in thunderstorm day of the present invention;
Fig. 5 is that thunder signal of the present invention triggers initial time resolution principle figure;
Fig. 6 is thunder and lightning direction deciding schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is further described in detail.
See Fig. 1 ~ Fig. 2, thunderstorm day of the present invention, self-recording unit 1 comprised: electric field plate aerial 1.1, microphone array 1.2, solar panel 1.3, gps antenna 1.4, terminal 1.5 and support 1.6, and described electric field plate aerial 1.1, microphone array 1.2, solar panel 1.3, gps antenna 1.4, terminal 1.5 are installed on support 1.6, described electric field plate aerial 1.1 is for detecting electric field signal when thunder and lightning occurs, the accurate microphone that described microphone array 1.2 is 15Hz ~ 20kHz by 8 frequency ranges forms, 1-8# microphone Symmetric mean distribution (angle is 45 ° between two) is in the planar rondure array distal portion around support 1.6 radius 0.5m, described terminal 1.5 comprises modulate circuit 1.5.1, single-shot trigger circuit 1.5.2, AND circuit 1.5.3, power-supply controller of electric module 1.5.4, accumulator 1.5.5 and communications records unit 1.5.6, described modulate circuit 1.5.1 is made up of amplifier and wave filter, described communications records unit 1.5.6 is by gps time module 1.5.7, central processing module 1.5.8, 3G communication module 1.5.9 and memory module 1.5.10 composition, described electric field plate aerial 1.1 is through modulate circuit 1.5.1, single-shot trigger circuit 1.5.2 is connected with an input end of each AND circuit 1.5.3, each microphone array 1.2 described is respectively through modulate circuit 1.5.1, single-shot trigger circuit 1.5.2 and another input end of a corresponding road AND circuit 1.5.3 connect that (output terminal of modulate circuit 1.5.1 is connected with the output terminal of single-shot trigger circuit 1.5.2, the output terminal of single-shot trigger circuit 1.5.2 is connected with the input end of AND circuit 1.5.3), the output terminal of each AND circuit 1.5.3 is all connected to central processing module 1.5.8, described gps antenna 1.4 is connected with central processing module 1.5.8 by gps time module 1.5.7, described solar panel 1.3 and accumulator 1.5.5 are connected with central processing module 1.5.8 respectively by power-supply controller of electric module 1.5.4 that (solar energy that described solar panel 1.3 receives charges through described power-supply controller of electric module 1.5.4 accumulators 1.5.5 after being converted into electric energy, this power-supply controller of electric module 1.5.4 controls the output voltage of accumulator 1.5.5 and prevents super-charge super-discharge, by central processing module 1.5.8 for self-recording unit in thunderstorm day 1 provides working power), described 3G communication module 1.5.9 is connected with central processing module 1.5.8 respectively with memory module 1.5.10.
With reference to Fig. 3, the Thunderstorm Day automatic production record being applied to meteorological station of the present invention, comprise a self-recording unit 1 and remote server 2 in one or more in thunderstorm day, described thunderstorm day, self-recording unit 1 was according to networking plan when the observation station of each meteorological station selects suitable position erection erection, and each, 1# microphone of self-recording unit pointed to positive north in thunderstorm day, and 1 set unique identification code 1 to respectively each self-recording unit in thunderstorm day, 2,3 ..., n, described thunderstorm day, self-recording unit 1 was communicated with 3G network 4 by 3G communication module 1.5.9, simultaneously, described remote server 2 is connected to 3G network 4 by INTERNET network 3, for receiving the thunderstorm data and duty that current each, self-recording unit 1 was uploaded in thunderstorm day, and call and check that the historical data 3G communication module 1.5.9 be kept in self-recording unit 1 in described thunderstorm day communicates with 3G network 4, for by thunderstorm day self-recording unit 1 lightning data send to remote server 2, eventually through statistics program, obtain beginning and ending time and the beginning of this Thundercloud, stop direction, by the thunderstorm days certificate of described remote server 2 long term accumulation, obtain the parameters such as the thunderstorm day in year in a certain region.
The span of described t is determined according to the distance between meteorological station or networking plan: by the velocity of propagation of the erection distance between thunderstorm day self-recording unit in meteorological station or other networking plans divided by sound, the value of t can be obtained, wherein, the velocity of propagation of sound gets 340m/s.
With reference to shown in Fig. 4, thunderstorm day of the present invention, automatic production record carried out the workflow diagram of automatic record method:
1) when there being thunder and lightning to occur, electric field plate aerial 1.1 receives the electric field signal produced when thunder and lighting process occurs, electric field signal is after the amplification, filtering operation of the modulate circuit 1.5.1 that is connected with electric field plate aerial 1.1, enter the single-shot trigger circuit 1.5.2 be connected with modulate circuit 1.5.1, once exceed the activation threshold value that single-shot trigger circuit 1.5.2 presets ,+5V window level the signal of single-shot trigger circuit 1.5.2 just output duration t is to the AND circuit 1.5.3 be attached thereto;
2) after thunder and lightning electric field signal receives, the accurate microphone in 8 tunnels of microphone array 1.2 also receives thunder signal, after the amplification of modulate circuit 1.5.1 that thunder signal is connected respectively through corresponding with each road microphone, filtering operation, enter the single-shot trigger circuit 1.5.2 be connected with modulate circuit 1.5.1 respectively, once exceed the activation threshold value that single-shot trigger circuit 1.5.2 presets, single-shot trigger circuit 1.5.2 just output duration is that+5V window level the signal of 300ms is to the AND circuit 1.5.3 be attached thereto;
3) 8 tunnels are because of+5V the window level of the 300ms of thunder signal triggering generation with because+5V the window level of the duration t of thunder and lightning electric field signal triggering generation is respectively through after a road AND circuit 1.5.3, enter central processing module 1.5.8, central processing module 1.5.8, once detect that the input end be connected with 8 tunnel AND circuit 1.5.3 has rising edge signal to produce, just records the GPS stamp time of 8 road window level rising edge time respectively;
4) based on 8 road GPS stamp times, central processing module 1.5.8 is by the thunder and lightning orientation analysis algorithm of write, automatically calculate beginning and ending time and the orientation of this thunder and lightning generation, and be saved in certain data layout in the memory module 1.5.10 of described communications records unit 1.5.6.
The described GPS stamp time, central processing module 1.5.8 receives 8 road rising edge signal respectively while, the sequencing entering central processing module 1.5.8 by rising edge signal exports trigger pip to gps time module 1.5.7, gps time module 1.5.7 provides accurate gps time this moment, form is: 130808092955.154376541, when representing 13 on August 8,9 29 points 55 seconds, be accurate to 10
-9s.
Described thunder and lightning orientation analysis algorithm is as follows: first, is compared 8 road GPS stamp times, obtains the road GPS stamp time the earliest, and this stamp time is the initial time of origin of thunder and lightning; Then, finding corresponding to the GPS stamp time of this road is which input in No. 8 microphones, and when setting up according to self-recording unit 1 in thunderstorm day, the microphone of agreement points to, and obtains the orientation of this thunder and lightning.
Fig. 5 is that thunder signal of the present invention triggers initial time resolution principle figure, as principles and methods, for 1# microphone signal and 2# microphone signal, the thunder signal that 1# microphones arrives is after amplify and filtering etc. operates, enter into single-shot trigger circuit 1.5.2, the amplitude of the 1st road thunder signal 4.1 is after treatment once exceed the trigger threshold voltage pre-set in single-shot trigger circuit 1.5.2, single-shot trigger circuit 1.5.2 just exports lasting 300ms and the window level signal 4.3 of+5V, and trigger instants is designated as t
1the thunder signal that 2# microphones arrives is after amplify and filtering etc. operates, enter into single-shot trigger circuit 1.5.2, the amplitude of the 2nd road thunder signal 4.2 is after treatment once exceed the trigger threshold voltage pre-set in single-shot trigger circuit 1.5.2, single-shot trigger circuit 1.5.2 just exports lasting 300ms and the window level signal 4.4 of+5V, and trigger instants is designated as t
2, t here
1, t
2represent different trigger instants, do not represent the concrete triggered time, the acquisition methods that the thunder signal that all the other No. 6 microphones (6-8# microphone) receive triggers initial time is similar.
Fig. 6 is thunder and lightning direction deciding schematic diagram of the present invention, this figure embodies the arrangement mode of actual microphone array, 1-8# microphone is evenly distributed (angle is 45 ° between two) in the distal portion of planar rondure array around support 1.5 radius being 0.5m, by arranged clockwise, 1# microphone be positioned at just to north orientation, 2# microphone just to North-East Bound, 3# microphone just to east orientation, 4# microphone just to the southeast to, 5# microphone just to south orientation, 6# microphone just to southwest to, 7# microphone just to west to, 8# microphone just to north-westward; From the thunder and lightning in certain orientation, because the distance arriving 8 microphones is different, and in the distance of diameter 1 meter, can think that the speed of thunder is certain, so thunder arrives the time just difference of each microphone, and must be that microphone nearer apart from thunder and lightning generation orientation first receives thunder signal, like this, the orientation pointed by that microphone receiving thunder signal is at first thunder and lightning orientation, and the time receiving thunder signal is thunder and lightning time of origin.
Thunder and lightning direction deciding situation for 1/8 circle region (i.e. region folded by these two rays of Od and Oc) folded by 1# microphone (figure mid point d position) and 2# microphone (figure mid point c position) and support 1.6 center (center of circle O): suppose that thunder and lightning betides b point (right side of the center line Oa line of these two rays of Od and Oc), distance then between thunder and lightning and 1# microphone is bd, distance between thunder and lightning and 2# microphone is bc, dc is the distance between 1# microphone and 2# microphone, and Oa ray vertically divides dc equally in an O
1, do the perpendicular line of dc line with a b in an O
2, then O
2the length of d is greater than O
2c, according to Pythagorean theorem, the length of bd is greater than bc, known, and the thunder on the right side of center line Oa line all will arrive 2# microphone at first, and the thunder on the left of center line Oa line all will arrive 1# microphone at first, and other 7 1/8 round areas case are similar.
The special situation of a class is had to need to do special agreement, here for the situation introduction of 1# microphone and 2# microphone: if the orientation of thunder and lightning comes from this line of Oa and extended line thereof, on the center line of i.e. these two lines of Od and Oc, thunder on this line at first and simultaneously arrives 1# microphone and 2# microphone, the orientation of the thunder of arranging on 1# microphone and 2# microphone center line is here attributed to face, northeast, still according to clockwise setting, successively: the orientation of the thunder on 2# microphone and 3# microphone center line is attributed in the east, the orientation of the thunder on 3# microphone and 4# microphone center line is attributed to the southeast, the orientation of the thunder on 4# microphone and 5# microphone center line is attributed to the south, the orientation of the thunder on 5# microphone and 6# microphone center line is attributed to southwestern face, the orientation of the thunder on 6# microphone and 7# microphone center line is attributed to west, the orientation of the thunder on 7# microphone and 8# microphone center line is attributed to the northwest, the orientation of the thunder on 8# microphone and 1# microphone center line is attributed to north.Adopt the direction of the more convenient differentiation thunder and lightning of above-mentioned direction setting in this case and do not cause and obscure.
The above is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention; those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, and equivalent variations or modification all drop in protection scope of the present invention.
Claims (7)
1. one kind utilizes thunderstorm day automatic production record to carry out self registering method in thunderstorm day, thunderstorm day, automatic production record comprised a self-recording unit and remote server in one or more in thunderstorm day, described thunderstorm day, self-recording unit comprised electric field plate aerial, microphone array, solar panel, gps antenna, terminal and support, and described electric field plate aerial, microphone array, solar panel, gps antenna, terminal are installed on support, described electric field plate aerial is for detecting electric field signal when thunder and lightning occurs, and the microphone that described microphone array is distributed on the planar rondure array of described support certain distance by several Symmetric mean forms, described terminal comprises modulate circuit, single-shot trigger circuit, AND circuit, power-supply controller of electric module, accumulator and communications records unit, described modulate circuit is made up of amplifier and wave filter, described communications records unit is by gps time module, central processing module, 3G communication module and memory module composition, described electric field plate aerial is through modulate circuit, single-shot trigger circuit is connected with an input end of each AND circuit, each microphone array described is respectively through modulate circuit, single-shot trigger circuit connects with another input end of a corresponding road AND circuit, the output terminal of each AND circuit is all connected to central processing module, described gps antenna is connected with central processing module by gps time module, described solar panel is connected with central processing module respectively by power-supply controller of electric module with accumulator, described 3G communication module is connected with central processing module respectively with memory module,
Described thunderstorm day, self-recording unit was communicated with 3G network by 3G communication module, simultaneously, described remote server is connected to 3G network by INTERNET network, for receiving thunderstorm data that each thunderstorm day current, self-recording unit was uploaded and calling and check the historical data be kept in self-recording unit in described thunderstorm day, it is characterized in that: the method comprises the following steps:
1) when there being thunder and lightning to occur, electric field plate aerial receives the electric field signal produced when thunder and lighting process occurs, electric field signal is after the amplification, filtering operation of the modulate circuit that is connected with electric field plate aerial, enter the single-shot trigger circuit be connected with modulate circuit, once exceed the activation threshold value that single-shot trigger circuit presets ,+5V window level the signal of single-shot trigger circuit just output duration t is to the AND circuit be attached thereto;
2) after thunder and lightning electric field signal receives, the accurate microphone in 8 tunnels of microphone array also receives thunder signal, after the amplification of modulate circuit that thunder signal is connected respectively through corresponding with each road microphone, filtering operation, enter the single-shot trigger circuit be connected with modulate circuit respectively, once exceed the activation threshold value that single-shot trigger circuit presets, single-shot trigger circuit just output duration is that+5V window level the signal of 300ms is to the AND circuit be attached thereto;
3) 8 tunnels are because of+5V the window level of the 300ms of thunder signal triggering generation with because+5V the window level of the duration t of thunder and lightning electric field signal triggering generation is respectively through after a road AND circuit, enter central processing module, central processing module, once detect that the input end be connected with 8 tunnel AND circuit has rising edge signal to produce, just records the GPS stamp time of 8 road window level rising edge time respectively;
4) based on 8 road GPS stamp times, central processing module, by the thunder and lightning orientation analysis algorithm of write, automatically calculates beginning and ending time and the orientation of this thunder and lightning generation, and is saved in certain data layout in the memory module of described communications records unit.
2. as claimed in claim 1 thunderstorm day automatic record method, it is characterized in that: described thunderstorm day, self-recording unit was set up in the observation station of each meteorological station according to networking plan, and each, self-recording unit all set unique identification code in thunderstorm day.
3. as claimed in claim 1 thunderstorm day automatic record method, it is characterized in that: the microphone that described microphone array is 15Hz ~ 20kHz by 8 frequency ranges forms, 1-8# microphone Symmetric mean is distributed in the planar rondure array distal portion around described holder radius 0.5m.
4. as claimed in claim 3 thunderstorm day automatic record method, it is characterized in that: described 1-8# microphone by arranged clockwise, 1# microphone be positioned at just to north orientation, 2# microphone just to North-East Bound, 3# microphone just to east orientation, 4# microphone just to the southeast to, 5# microphone just to south orientation, 6# microphone just to southwest to, 7# microphone just to west to, 8# microphone just to north-westward.
5. as claimed in claim 1 thunderstorm day automatic record method, it is characterized in that: the span of described t is determined according to the distance between meteorological station or networking plan: by the velocity of propagation of the erection distance between thunderstorm day self-recording unit in meteorological station or other networking plans divided by sound, the value of t can be obtained, wherein, the velocity of propagation of sound gets 340m/s.
6. as claimed in claim 1 thunderstorm day automatic record method, it is characterized in that: the described GPS stamp time, central processing module receives 8 road rising edge signal respectively while, the sequencing entering central processing module by rising edge signal exports trigger pip to gps time module, gps time module provides accurate gps time this moment, form is: 130808092955.154376541, when representing 13 on August 8,9 29 points 55 seconds, be accurate to 10
-9s.
7. as claimed in claim 1 thunderstorm day automatic record method, it is characterized in that: described thunder and lightning orientation analysis algorithm is as follows: first, compared 8 road GPS stamp times, obtain the road GPS stamp time the earliest, this stamp time is the initial time of origin of thunder and lightning; Then, find corresponding to the GPS stamp time of this road be in No. 8 microphones which input, according to thunderstorm day self-recording unit erection time agreement microphone point to, obtain the orientation of this thunder and lightning.
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| CN106842179B (en) * | 2016-12-23 | 2019-11-26 | 成都赫尔墨斯科技股份有限公司 | A kind of anti-UAV system based on acoustic detection |
| CN114325569B (en) * | 2022-03-02 | 2022-06-17 | 广州国睿电子科技有限公司 | Thunder and lightning detection device |
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| CN102141588A (en) * | 2011-01-05 | 2011-08-03 | 南京信息工程大学 | Device capable of automatically recording thunderstorm days every year |
| CN102186008A (en) * | 2011-03-18 | 2011-09-14 | 中国气象科学研究院 | All-in-view lightning event observation system and method |
| CN203101662U (en) * | 2012-05-16 | 2013-07-31 | 北京蓝湖空间科技发展中心 | Thunderstorm weather phenomenon instrument |
| CN203858379U (en) * | 2013-12-31 | 2014-10-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Thunderstorm day automatic recording system applied to meteorological station |
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| JP2774293B2 (en) * | 1988-12-19 | 1998-07-09 | 九州電力株式会社 | Lightning Prediction Method Using Distribution Line Lightning Surge Information |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102141588A (en) * | 2011-01-05 | 2011-08-03 | 南京信息工程大学 | Device capable of automatically recording thunderstorm days every year |
| CN102186008A (en) * | 2011-03-18 | 2011-09-14 | 中国气象科学研究院 | All-in-view lightning event observation system and method |
| CN203101662U (en) * | 2012-05-16 | 2013-07-31 | 北京蓝湖空间科技发展中心 | Thunderstorm weather phenomenon instrument |
| CN203858379U (en) * | 2013-12-31 | 2014-10-01 | 国网电力科学研究院武汉南瑞有限责任公司 | Thunderstorm day automatic recording system applied to meteorological station |
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