CN202025042U - Lightning warning device - Google Patents
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- CN202025042U CN202025042U CN2010206310418U CN201020631041U CN202025042U CN 202025042 U CN202025042 U CN 202025042U CN 2010206310418 U CN2010206310418 U CN 2010206310418U CN 201020631041 U CN201020631041 U CN 201020631041U CN 202025042 U CN202025042 U CN 202025042U
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Abstract
The utility model relates to a lightning warning device based on a principle of a lightning broadband interferometer, which belongs to the technical field of lightning detection. In order to overcome the defect that the existing single station warning technology has a poor effect, the warning device provided by the utility model comprises a vertical antenna array, a signal processor and an audible and visual alarm, wherein the vertical antenna array is formed by installing two identical dipole antennas at different heights on a support vertical to the ground; the signal processor is used for analyzing and processing a lightning laser signal received by the vertical antenna array, calculating the distance of a lightning source, carrying out real-time statistics on occurrence frequency of lightning, and transmitting a lightning warning command to the audible and visual alarm; and the audible and visual alarm is used for receiving and responding to the lightning warning command. In the technical scheme provided by the utility model, the two antennas are placed vertical to the ground up and down, so that the accuracy in measuring a low altitude lightning source is improved; and the distance of the lightning source is estimated according to the angle of elevation of the lightning laser signal reaching the antenna array, so that the defect that the like product can not estimate the distance of the action zone of the lightning is overcome.
Description
Technical field
The utility model relates to the lightening detection technical field, relates in particular to a kind of thunder and lightning prior-warning device based on broadband interferometer principle.
Background technology
The thunder and lightning disaster is one of serious disaster, can cause forest and oil depot fire, cause power supply, communication information system fault or damage, Aero-Space, mine and hi-tech that some are important and responsive equipment are caused a significant threat, also usually cause casualties.Because thunderbolt harm is huge, cause disaster rapidly, and time and space that thunder and lightning takes place have very big randomness, thereby brought great difficulty to its research, forecast and control.According to conservative estimation, the thousands of people of casualties that China causes because of damage to crops caused by thunder every year, direct economic loss surpasses several hundred million units, and indirect economic loss that causes thus and influence are difficult to estimate, so the thunder and lightning disaster has fed through to the every aspect of all trades and professions and people's lives.Particularly in recent years, influenced by the overall background of global warming, strong convective weather frequently takes place, and local, extreme weather events odds increases greatly, therefore along with the development of national economy, higher, requirement has widely been proposed for lightning hazard forecasting and defence with society.
Thunder and lightning often results from the fluidity synoptic process, and when the endoatmosphere produces strong convection current, the cloud body will be charged, and this process is referred to as the electrifying process of thundercloud, when in the cloud or the electric field intensity between cloud ground will discharge after acquiring a certain degree.Electrify-discharge process is accompanied by whole thunderstorm evolution, thus form the initial stage at thundercloud, and the full-fledged stage of thundercloud, discharge process all can produce electromagnetic radiation very strong and that frequency range is very wide, and these electromagnetic radiation are also referred to as " atmospheric electricity ".When taking place, thunder and lightning can supervene multiple effects such as sound, light, electromagnetic field, this makes the monitoring of thunder and lightning and early warning become possibility, present most of lightning monitoring equipment just is based on the various effects of thunder and lightning generation and surveys lightning, realizes the early warning to lightening activity.In fact, before thunder and lightning produces, in the thundercloud electrifying process, can form the spark discharge of a lot of small scales in the cloud, can produce the electromagnetic radiation noise of frequency distribution very wide (from several kHz to GHz), utilize the generation of the early warning thunder and lightning that these electromagnetic radiation can be as early as possible.
The application of lightning monitoring early warning system (or device) is very extensive, mainly has the multistation networking and realizes monitoring of lightening activity on a large scale and the monitoring and warning dual mode that local lightening activity is realized at single station.The principle of work of multistation networking mode is by surveying multiple effects such as the sound supervened when thunder and lightning takes place, light, electromagnetic field, utilize location technologies such as crossed loops, time of arrival differ from, determine the when and where that thunder and lightning takes place, thereby realize the monitoring and warning of lightening activity on a large scale.This type systematic is as the lightning positioning system of in the sky weather satellite, ground, based on SAFIR (Surveillance et d ' Alerte Foudre par Interferometrie Radioelectrique) lightning detection system of principle of interference or the like.
The detecting devices at single station equally also is effects such as the sound that utilizes thunder and lightning to produce, light, electromagnetic field, determine whether to have the generation of thunder and lightning, and utilize several different methods to estimate the distance of thunder and lightning to acquisition station, determine to have taken place the time of origin of thunder and lightning and scene (orientation) etc., realize with the acquisition station being the detecting early-warning of peripheral region, center lightening activity.This type systematic comprises the lightening detection instrument, atmosphere average electric field instrument, thunder and lightning warning horn, lightning interferometer or the like.
Lightning is interfered localization method, is to utilize lightning magnetic radiation signal to arrive phase differential between a plurality of antennas, determines the orientation of radiation source.Lightning interferometer as single website passes through three not quadrature baselines of the formation of the short antenna on same straight line, just can determine position angle and the elevation angle of radiation source with respect to our station.In the narrow-band interference localization method in early days, adopt the narrow band electromagnetic radiation signal that receives a certain particular frequency range to realize, along with the breakthrough on the high-speed high capacity digitized record equipment and technology, sample frequency and writing time length allowed the lightning magnetic radiation is carried out time domain measurement in the broad frequency range, Shao X.M. in 1996 have proposed the model of broadband interferometer first, and Ushio has developed the lightning broadband interferometer system that is used for two-dimensional localization on this basis separately in, Dong Wansheng in 1997 in 2000 afterwards.
Lightning broadband interferometer system is with the broadband electromagnetic radiation signal of very high sample frequency Direct Sampling from antenna, by these signals are carried out Fast Fourier Transform (FFT), obtain the narrow band signal of a series of different frequencies, so just be equivalent to have the narrow-band interference instrument system of a plurality of different length baselines.This will make that the selection of broadband interference system location frequency is more flexible, and it is simple compact that system architecture becomes, and can also obtain broader frequency spectrum information when the lightning electromagnetic radiation source is positioned, thereby become the important tool of lightning detection and research.
Because strong convective weather betides the Small and Medium Sized weather system, it is little to have a space scale, and the characteristics that life cycle is short have very strong local property and sudden.Though there is at present multiple lightening detection system can monitor lightening activity, and electromagnetic field that these lightening detection systems produce when all utilizing thunder and lightning to take place or optical phenomenon are surveyed the generation of location thunder and lightning, as weather satellite, lightning positioning system, SAFIR lightning detection system etc.These lightning monitoring systems are suitable for the monitoring of region lightening activity on a large scale, and then there is certain limitation in the lightening activity monitoring and warning in a certain some areas, so be difficult to accomplish that some areas thunder and lightning takes place giving warning in advance or forecasting.
The multiple device that is used for local thunder and lightning early warning is also arranged at present, as the lightening detection instrument at single station, atmosphere average electric field instrument (though a lot of device title differences are arranged at present, but all based on this principle), utilize the thunder and lightning warning horn of principle of corona discharge and based on the simple type thunderstorm prior-warning device of two-band thunder and lightning electromagnetic radiation principle, or utilize product that is combined to form of these devices or the like, the item, of a great variety of can saying so.But as the device of local thunder and lightning early warning, the said equipment all has limitation separately.Lightening detection instrument as single station, this is classical lightening detection equipment, and the orientation that the lightning that utilizes the crossed loops technology to determine takes place belongs to the equipment that just can detect thunder and lightning after thunder and lightning takes place, this equipment is mainly used in the multistation group network system, realizes the monitoring of lightening activity on a large scale.Though it can determine the orientation that lightning takes place, but single station system can't effectively determine the distance that lightning takes place, although people adopt several different methods to attempt to solve the problem of single station range finding, as utilize the power, sky wave of signal and earthwave time of arrival is poor, phase differential, electromagnetism (light) signal and sound (thunder) difference time of arrival in electric field and magnetic field or the like, but effect is all undesirable; Atmosphere average electric field instrument (comprising the equipment that utilizes the corona current principle) is though can just monitor electrical activity in the cloud before thunder and lightning takes place, but be subjected to the bigger limitation of surrounding environment influence, and monitoring range little (about 10km), when detecting thunder and lightning nearby, forewarning function is limited; Though the simple type thunderstorm prior-warning device detection range based on two-band thunder and lightning electromagnetic radiation principle is far away, early warning lightning that can be early, and can reject undesired signal preferably, solve the problem of estimation thunder and lightning distance; Lightning broadband interferometer system can be surveyed lightning faint discharge activities in the preceding cloud takes place, the generation of early warning thunder and lightning early, also can utilize its wide band feature, discern, get rid of the undesired signal of non-radiation of lightening discharge signal very effectively, but this difficult problem of range estimation when still well not solving the work of single station.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is: how to overcome in the early warning technology of existing single station owing to the range estimation error reason such as big or the less and non-radiation of lightening discharge signal of monitoring range interference and cause the unfavorable shortcoming of early warning effect, realize the simple, practical and reliable graduation early warning that local regional thunder and lightning threatens.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of thunder and lightning prior-warning device, and this device comprises:
Vertical antenna array is used to receive the radiation of lightening discharge signal, comprises two identical dipole antennas, and described two antennas are installed in respectively on the position perpendicular to differing heights place on the support on ground;
Signal processor, be used for the received radiation of lightening discharge signal of described vertical antenna array is carried out analyzing and processing, calculate the distance of thunder and lightning spacing from vertical antenna array, the frequency that the real-time statistics thunder and lightning takes place, and to audible-visual annunciator transmission thunder and lightning alarm command;
Audible-visual annunciator is used for receiving and responding described thunder and lightning alarm command.
Wherein, described signal Processing implement body comprises:
Amplifier is used for the received radiation of lightening discharge signal of vertical antenna array is amplified;
Analog to digital converter is used for the radiation of lightening discharge signal after amplifying is carried out synchronous analog to digital conversion;
Veneer PC is used for the radiation of lightening discharge signal after the digitizing is carried out Fast Fourier Transform (FFT), by spectrum sigtral response, undesired signal is discerned and rejected to the radiation of lightening discharge signal; Obtain the phase differential that the radiation of lightening discharge signal arrives two antennas; The phase differential that arrives two antennas according to the radiation of lightening discharge signal that is calculated generates the distance of thunder and lightning spacing from vertical antenna array; The frequency that the real-time statistics thunder and lightning takes place is analyzed local lightening activity characteristics and is developed feature; Final generation thunder and lightning alarm command also is sent to described audible-visual annunciator.
Wherein, described audible-visual annunciator comprises warning lamp and loudspeaker.
Wherein, described veneer PC specifically comprises:
Identification of thunder and lightning signal and undesired signal are rejected the unit, are used for the radiation of lightening discharge signal after the digitizing is carried out fast Fourier transform analysis, according to its spectrum signature undesired signal is discerned and rejected to the radiation of lightening discharge signal;
Elevation angle computing unit is used for obtaining two-way radiation of lightening discharge phase difference between signals by the radiation of lightening discharge signal after the digitizing is carried out Fast Fourier Transform (FFT)
Calculate the elevation angle that the radiation of lightening discharge signal arrives vertical antenna array according to the relation between the angle of elevation alpha of phase difference φ and radiation of lightening discharge signal;
The thunder and lightning spacing is from evaluation unit, be used for according to the thunder and lightning spacing from the relation apart between the angle of elevation alpha of the height h in d, thunder and lightning source and radiation of lightening discharge signal of vertical antenna array estimate the thunder and lightning source apart from d;
The alarm command generation unit is used for developing feature according to the distance and the local lightening activity in the thunder and lightning source that is calculated, and generates the thunder and lightning alarm command.
Wherein, described two antennas are installed in respectively perpendicular on the vertical rack on ground between the upper and lower at a certain distance the position by horizontal stand, and described horizontal stand and vertical rack all adopt the hollow metal tube material, and described vertical rack is arranged on the base;
Described two antennas link to each other with described signal processor by the inner space of concentric cable through vertical rack and horizontal stand.
Wherein, described signal processor links to each other with described audible-visual annunciator by placing the cable group in the vertical rack;
Described signal processor is installed in vertical support frame apart from ground certain altitude place, and its perforate by the vertical support frame bottom links to each other with external power source.
Wherein, described signal processor is provided with working station indicator and network interface, and wherein, working station indicator is used for the duty of shows signal processor; Network interface is connected with host computer, server or the Internet.
(3) beneficial effect
Technical solutions of the utility model possess following beneficial effect compared with prior art:
(1) measures the elevation angle that arrives aerial array from the radiation of lightening discharge signal in thunder and lightning source by utilizing, and then estimate the distance in thunder and lightning source, preferably resolve the deficiency of present like product lightening activity region distance estimation aspect;
(2) utilize broadband interferometer principle, realize arriving the high-acruracy survey at the elevation angle of aerial array from the radiation of lightening discharge signal in thunder and lightning source;
(3) two antennas adopt vertical ground to place the scheme that constitutes the exploring antenna array up and down, have improved the measuring accuracy to the thunder and lightning source at the low elevation angle;
(4) by receiving the broadband ELECTROMAGNETIC RADIATION SIGNATURE, adopt the method for spectrum analysis, realize the discriminating of radiation of lightening discharge and artificial electromagnetic signal, the identification that thunder and lightning is produced ELECTROMAGNETIC RADIATION SIGNATURE is more accurate, makes this device have stronger antijamming capability.
Description of drawings
Fig. 1 is the structural representation of the related thunder and lightning prior-warning device of the utility model embodiment part;
Fig. 2 is the process flow diagram of the related thunder and lightning method for early warning of the utility model embodiment part;
Fig. 3 is the synoptic diagram of distance with the elevation angle relation of radiation of lightening discharge signal in the related thunder and lightning source of the utility model embodiment part;
Fig. 4 is the structural principle synoptic diagram of the related signal processor unit of the utility model embodiment part.
Embodiment
For making the purpose of this utility model, content and advantage clearer,, embodiment of the present utility model is described in further detail below in conjunction with drawings and Examples.
The related thunder and lightning method for early warning of this embodiment is applied to the thunder and lightning prior-warning device, described thunder and lightning prior-warning device is based on the ultimate principle of interferometric method, by measuring the phase differential that receives the radiation of lightening discharge signal at two antennas separated by a distance, just can determine the incident angle of radiation of lightening discharge signal with respect to antenna baseline (lines of two antennas), place up and down perpendicular to ground when two antennas, then can determine the elevation angle that the radiation of lightening discharge signal arrives this device.
If this device adds two antennas, formation is with respect to two quadrature horizontal base lines of this vertical parallax, promptly on the position separated by a distance a dipole antenna is set separately on the vertical support frame 5 as shown in Figure 1, constitute the vertical antenna array structure, this structure can provide simultaneously from the position angle of the radiation of lightening discharge signal in thunder and lightning source and elevation information (as the broadband interferometer).
This technical scheme does not adopt the aerial array of horizontal quadrature baseline used in the prior art, and two aerial arrays that only adopt one group of vertical ground to place up and down, mainly be to consider that this device key is from the range estimation of aerial array sufficiently high precision to be arranged to the thunder and lightning spacing, the orientation of its generation is less important relatively, and the antenna array of arranging so exactly at the elevation angle hour, measuring accuracy is the highest, and this design has greatly been simplified device structure and reduced cost of manufacture.
As shown in Figure 1, described thunder and lightning prior-warning device comprises:
Vertical antenna array comprises two identical dipole antennas 1; Described two antennas 1 are installed in respectively perpendicular on the vertical rack 5 on ground between the upper and lower at a certain distance the position by horizontal stand 6, and described horizontal stand 6 and vertical rack 5 all adopt the hollow metal tube material, and described vertical rack 5 is arranged on the base 4.Fixed distance between described two antennas 1; Described vertical antenna array is used to receive the radiation of lightening discharge signal from lightening activity produced in the local regional convective cloud, and is connected through the inside of vertical rack 5 and horizontal stand 6 by concentric cable 7 and is transported to signal processor 2;
Audible-visual annunciator 3 is used for according to carrying out sound or/and light warning from the alerting signal of described signal processor 2; Described audible-visual annunciator 3 comprises warning lamp and loudspeaker, is used for sending with different light and sound the lightening alarm signal of different brackets.
Wherein, as shown in Figure 4, from logical functional structure, described signal processor 2 specifically comprises:
Amplifier module is used for the received radiation of lightening discharge signal of vertical antenna array is amplified;
Analog to digital conversion (A/D) module is used for the two-way radiation of lightening discharge signal after amplifying is carried out synchronous analog to digital conversion;
Veneer PC module, be used for the two ways of digital signals after the A/D conversion is carried out analyzing and processing, concrete function comprises the radiation of lightening discharge signal after the digitizing is carried out Fast Fourier Transform (FFT), by spectrum sigtral response undesired signal is discerned and rejected to the radiation of lightening discharge signal, calculate the elevation angle of phase differential, radiation of lightening discharge signal between the two-way radiation of lightening discharge signal and generate the distance of thunder and lightning spacing from vertical antenna array, the frequency of real-time statistics thunder and lightning generation simultaneously finally generates alerting signal and is sent to described audible-visual annunciator unit;
Described veneer PC module comprises that specifically the radiation of lightening discharge signal is discerned and undesired signal is rejected unit, elevation angle computing unit, thunder and lightning spacing from evaluation unit, thunder and lightning frequency real-time statistics unit and alarm command generation unit;
Wherein, described thunder and lightning signal identification and undesired signal are rejected the unit, are used for the radiation of lightening discharge signal after the digitizing is carried out fast Fourier transform analysis, according to its spectrum signature undesired signal is discerned and rejected to the radiation of lightening discharge signal;
Described elevation angle computing unit is used for obtaining two-way radiation of lightening discharge phase difference between signals by the radiation of lightening discharge signal after the digitizing is carried out Fast Fourier Transform (FFT)
According to the relation between the angle of elevation alpha of phase difference φ and radiation of lightening discharge signal
Calculate the elevation angle of radiation of lightening discharge signal arrival vertical antenna array, wherein, f is the frequency of thunder and lightning signal, and c is the light velocity, and l is the base length between the antenna;
Described thunder and lightning spacing is from evaluation unit, be used for according to the thunder and lightning spacing from vertical antenna array apart from the relation between the angle of elevation alpha of d, thunder and lightning source height h and radiation of lightening discharge signal
Estimate the thunder and lightning source apart from d; Wherein, thunder and lightning source height h is generally in 4km～10km scope;
Described thunder and lightning frequency real-time statistics unit is used for the frequency that the real-time statistics thunder and lightning takes place;
Described alarm command generation unit is used for developing feature according to the thunder and lightning spacing that is calculated from reaching local lightening activity, generates the thunder and lightning alarm command.
In addition, described thunder and lightning prior-warning device still is provided with network interface, being used for device software safeguards, upgrades, or by network remote monitoring equipment running status, described thunder and lightning prior-warning device overall construction design is succinct, and the circular arc design is adopted at the top, and effectively holdout device itself produces corona discharge, and all electrical connection all is enclosed in the entire bracket, has good lightning protection effect.
Next, as shown in Figure 2, the related thunder and lightning method for early warning of this embodiment comprises the steps:
S1: on two positions two identical dipole antennas are set up and down separated by a distance on the support perpendicular to ground, constitute vertical antenna array;
S2: undesired signal is discerned and rejected to the radiation of lightening discharge signal
The signal that vertical antenna array is received is done Fast Fourier Transform (FFT), and the signal that will possess the thunder and lightning spectrum signature is regarded the radiation of lightening discharge signal as, otherwise is rejected as undesired signal; With respect to the artificial signal of the overwhelming majority (interference source), radiation of lightening discharge is a kind of natural sign source, has the extremely wide feature of frequency spectrum, the main frequency range of its energy is between 10Hz-300MHz, usually then frequency band is relatively very narrow for the undesired signal that is produced by communication etc., and general frequency range is at several MHz of several kHz-.According to this feature, by the received signal of vertical antenna array is done fast Fourier transform analysis, utilize the spectrum signature of signal just can discern the radiation of lightening discharge signal easily, thereby reject undesired signal.
S3: measure the elevation angle that the radiation of lightening discharge signal arrives vertical antenna array
Specifically comprise:
S301: utilize wideband low noise amplifier that the received radiation of lightening discharge signal of vertical antenna array is amplified, to increase the effective detection range of equipment, signal bandwidth is generally tens MHz;
S302: utilize analog to digital conversion (A/D) module that the two-way radiation of lightening discharge signal after amplifying is carried out the synchronous high-speed analog to digital conversion, sample frequency is hundreds of MHz (or 1GHz);
S303: utilize universal computer interface to be transferred to single board computer to the two-way radiation of lightening discharge signal after the digitizing,, calculate the phase differential that the radiation of lightening discharge signal arrives two antennas by the radiation of lightening discharge signal is carried out Fast Fourier Transform (FFT)
S304: according to phase differential
And the relation between the angle of elevation alpha of radiation of lightening discharge signal calculates the angle of elevation alpha that the radiation of lightening discharge signal arrives aerial array; For the antenna of placing up and down perpendicular to ground that this device adopts, its phase differential
And the pass between the radiation of lightening discharge signal angle of elevation alpha is
Wherein, f is the frequency of radiation of lightening discharge signal, and c is the light velocity, and l is the base length between the antenna, draws the angle of elevation alpha that the radiation of lightening discharge signal arrives aerial array thus;
S4: according to the distance in the estimation thunder and lightning source, the elevation angle that calculates
As shown in Figure 3, if the thunder and lightning source occurs in the height apart from ground h, then the thunder and lightning spacing from the pass apart between the angle of elevation alpha of d and radiation of lightening discharge signal of aerial array is
Therefore, by measuring the elevation angle of radiation of lightening discharge signal, just can estimate thunder
Power supply is apart from the distance of aerial array, and the elevation angle is more little, and distance is far away more.
Here be that example is calculated to occur in the thunder and lightning source that 7km highly locates, the result as shown in Figure 3.As seen, if measure the elevation angle less than 30 °, then thunder cloud should be positioned at beyond the 10km.The prior art result of study shows that based on broadband interferometer principle, this device is directly proportional with the cosine at base length, survey frequency and the elevation angle to the measurement sensitivity at the elevation angle.Therefore, with regard to the antenna structure and the working frequency range of its device, should be to the measuring error of angle less than 1 °.And the vertical parallax structure that this device adopts is littler to the measuring error of angle when hanging down the elevation angle.
In fact, with interior lightening activity, can be described as new line as seen for 10km, also can hear thunder, the early warning meaning of equipment is little, and the thunder and lightning source of early warning more should be conceived to the early warning of lightening activity at a distance.Moreover the yardstick of local thunderstorm generally all has ten to tens kilometers yardstick, and therefore, this embodiment technical scheme is well positioned to meet the requirement of lightening activity range estimation precision.
S5: the distance according to the thunder and lightning source that is calculated is carried out lightening alarm
The single board computer real-time statistics receives the number of times of thunder and lightning signal in about (or longer) time a few minutes, and according to the distance in the thunder and lightning source that calculates, the distance of the local lightening activity of analysis-by-synthesis, frequency and differentiation feature, the alerting signal that generates different stage is to the audible-visual annunciator unit; The audible-visual annunciator unit sends the lightening alarm signal of different brackets then with different light and sound.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and distortion (as increasing horizontal base line etc.), these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (5)
1. a thunder and lightning prior-warning device is characterized in that, this device comprises:
Vertical antenna array is used to receive the radiation of lightening discharge signal, comprises two identical dipole antennas, and described two antennas are installed in respectively on the position perpendicular to differing heights place on the support on ground;
Signal processor, be used for the received radiation of lightening discharge signal of described vertical antenna array is carried out analyzing and processing, calculate the distance of thunder and lightning spacing from vertical antenna array, the frequency that the real-time statistics thunder and lightning takes place, and to audible-visual annunciator transmission thunder and lightning alarm command;
Audible-visual annunciator is used for receiving and responding described thunder and lightning alarm command.
2. thunder and lightning prior-warning device as claimed in claim 1 is characterized in that described audible-visual annunciator comprises warning lamp and loudspeaker.
3. thunder and lightning prior-warning device as claimed in claim 1, it is characterized in that, described two antennas are installed in respectively perpendicular on the vertical rack on ground between the upper and lower at a certain distance the position by horizontal stand, described horizontal stand and vertical rack all adopt the hollow metal tube material, and described vertical rack is arranged on the base;
Described two antennas link to each other with described signal processor by the inner space of concentric cable through vertical rack and horizontal stand.
4. thunder and lightning prior-warning device as claimed in claim 3 is characterized in that, described signal processor links to each other with described audible-visual annunciator by placing the cable group in the vertical rack;
Described signal processor is installed in vertical support frame apart from ground certain altitude place, and its perforate by the vertical support frame bottom links to each other with external power source.
5. thunder and lightning prior-warning device as claimed in claim 4 is characterized in that described signal processor is provided with working station indicator and network interface, and wherein, working station indicator is used for the duty of shows signal processor; Network interface is connected with host computer, server or the Internet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206310418U CN202025042U (en) | 2010-11-25 | 2010-11-25 | Lightning warning device |
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| CN2010206310418U CN202025042U (en) | 2010-11-25 | 2010-11-25 | Lightning warning device |
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| CN202025042U true CN202025042U (en) | 2011-11-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095943A (en) * | 2010-11-25 | 2011-06-15 | 中国气象科学研究院 | Early warning method and device of lightning |
| CN102937671A (en) * | 2012-10-24 | 2013-02-20 | 中国人民解放军理工大学气象学院 | Integrated device for lightning and ground electric field monitoring |
| CN103048552A (en) * | 2012-12-20 | 2013-04-17 | 孙海元 | Lightning early warning device and implementation method for lightning early warning |
| CN103235284A (en) * | 2013-03-29 | 2013-08-07 | 中国气象科学研究院 | Multi-station lightning VHF (very high frequency) radiation source three-dimensional positioning method and system |
-
2010
- 2010-11-25 CN CN2010206310418U patent/CN202025042U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095943A (en) * | 2010-11-25 | 2011-06-15 | 中国气象科学研究院 | Early warning method and device of lightning |
| CN102095943B (en) * | 2010-11-25 | 2013-04-24 | 中国气象科学研究院 | Early warning method and device of lightning |
| CN102937671A (en) * | 2012-10-24 | 2013-02-20 | 中国人民解放军理工大学气象学院 | Integrated device for lightning and ground electric field monitoring |
| CN103048552A (en) * | 2012-12-20 | 2013-04-17 | 孙海元 | Lightning early warning device and implementation method for lightning early warning |
| CN103048552B (en) * | 2012-12-20 | 2015-02-25 | 孙海元 | Method for lightning early warning |
| CN103235284A (en) * | 2013-03-29 | 2013-08-07 | 中国气象科学研究院 | Multi-station lightning VHF (very high frequency) radiation source three-dimensional positioning method and system |
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