CN107834199A - A kind of intelligent active lightning protection antenna and lightning-protection system - Google Patents
A kind of intelligent active lightning protection antenna and lightning-protection system Download PDFInfo
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- CN107834199A CN107834199A CN201711252628.0A CN201711252628A CN107834199A CN 107834199 A CN107834199 A CN 107834199A CN 201711252628 A CN201711252628 A CN 201711252628A CN 107834199 A CN107834199 A CN 107834199A
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- lightning protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
Abstract
The present invention relates to a kind of intelligent active lightning protection antenna and lightning-protection system, the lightning protection antenna includes dielectric-slab, and the vertical polarization component and horizontal polarization component being arranged on dielectric-slab；Vertical polarization component is sequentially connected coaxial cable and controlled switch；Horizontal polarization component connecting coaxial cable.The relation between the protection act of lightning protection device and lightning current wave mode can be greatly lowered in the present invention, so as to effectively lift protecting effect.
Description
Technical field
The present invention relates to anti-thunder technical field, more particularly to a kind of intelligent active lightning protection antenna and lightning-protection system.
Background technology
In current existing shocking preventing technology, it is that main flow is done to carry out lightning protection to antenna using antenna feeder arrester (SPD)
Method, i.e., installation antenna feeder SPD is protected on the back end signal line of antenna.It is well known that atmospheric electrical phenomena complex, at random
Property is big.And SPD designs, construction are planned both for the statistical property of lightning, it may be said that the artificial work that SPD devices are just to determine
Product, it is once it is determined that getting off just can not change.Therefore, Chinese Academy of Sciences electrician institute Zhang Shichang researcher thinks：SPD protection is special
Point is that it, which may fail, causes the accident also just with inevitable with the constant thunderbolt event for fixing design and carrying out strain variation and not surveying
Property.
In addition, existing antenna feeder SPD designs both for direct lightning strike, the protection for induced lightening is not considered.It is and usual
Field communication system, such as the antenna on communication base station iron tower, its side has connects sudden strain of a muscle system well, such as：Lightning rod, under drawing
Line etc., so more situations are induced lightening.
In summary, current main flow preventive means, on the one hand the wave mode with lightning current in the protection of direct lightning strike have
Very close contact so that the validity of preventive means is restricted；On the other hand, the protection for induced lightening is not carried out also
Take into full account and design.Therefore, currently used antenna feeder SPD carry out antenna lightning protection also exist it is a large amount of need improve and perfect it
Place.
A kind of realized in addition, the U.S. was proposed in 2000 by Mano D.Judd et al. using paster/microstrip line unit
Active lightning protection antenna, but the antenna designs mainly for the electrostatic charge accumulated on antenna element is eliminated, while the antenna
Also do not possess intelligent characteristic.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of intelligent active lightning protection antenna and system, can be greatly lowered
Relation between the protection act and lightning current wave mode of lightning protection device, so as to effectively lift protecting effect.
The present invention solves above-mentioned technical problem, and the technical scheme by taking the microstrip antenna for working in 900MHz or so as an example is such as
Under：
A kind of intelligent active lightning protection antenna, including dielectric-slab, and the vertical polarization component and water being arranged on dielectric-slab
Flat polarization component；Vertical polarization component is sequentially connected the first coaxial cable and controlled switch；The connection second of horizontal polarization component is same
Shaft cable.
The beneficial effects of the invention are as follows：When external equipment monitors caused upward leader on atural object sophisticated (such as lightning rod)
When, lightening strikes pre-warning signal is sent to microwave switch immediately, the microwave switch is by the letter for the vertical polarization component being attached thereto
Number passage is closed, that is, causes lightning to be coupled into the passage of day line back end by vertical polarization component and cut off so that the part energy
Amount can not reach antenna rear end equipment, so as to reach the purpose of protection back end electronics.The cut-out of vertical polarization component be
Lightning develops and reaches ground, and the protection completed before attacking ground is acted, and therefore, this lightning protection antenna will be fought back with lightning
Caused pulse current wave mode and whether be that direct attack or induced lightening are unrelated.
When the object near lightning hits antenna, e.g., the lightning rod on the steel tower of mobile communication base station, now, lightning
Electromagnetic energy will be coupled into the signal wire being connected with antenna by antenna, the electronic equipment structure being connected to rear end with signal wire
Into interference or damage/calamity is caused to threaten, and the electromagnetic energy of lightning is most easily coupled by vertical polarization component, with horizontal polarization group
The coupling efficiency of part is extremely low, therefore after the two parts of signals is separated into individual reception and feed, you can with before lightning attacks,
The signalling channel of vertical polarization component is closed so that the main energy of lightning cannot be introduced into signal wire, then can reach to rear end
Electronic equipment carries out protection and jamproof purpose.
Further, horizontal polarization component includes being arranged on the first level radiation patch of dielectric-slab upper surface, the second level
Radiation patch, it is arranged on the symmetrical with first level radiation patch, the second horizontal radiation patch location respectively of dielectric-slab lower surface
First level earth plate, the second horizontal grounding plate, and horizontal connection bridge AC；First is provided with first level radiation patch
Connecting hole, the interior of the second coaxial cable are led a1 through dielectric-slab and are connected in the first connection hole with horizontal connection bridge AC A ends,
It is connected by horizontal connection bridge AC with the second horizontal radiation paster；First level radiation patch is not connected with horizontal connection bridge AC,
But first level radiation patch is connected by the first connecting pole with first level earth plate；Connecting bridge AC C-terminal passes through the first gold medal
Category post is connected with the second earth plate.
Using the beneficial effect of above-mentioned further scheme：This structure can cause antenna to obtain preferable reflectance factor
S11 and transmission coefficient S21, S11 parameter are below -12dB in 900MHz or so, and S21 parameters in 900MHz or so are -
Below 30dB.
Further, vertical polarization component includes being arranged on the first vertical radiation paster of dielectric-slab upper surface, second vertical
Radiation patch, it is arranged on the symmetrical with the first vertical radiation paster, the second vertical radiation patch location respectively of dielectric-slab lower surface
The first vertical earth plate, the second vertical earth plate, and vertical connection bridge BD；Second is provided with first vertical radiation paster
Connecting hole, the outer of the first coaxial cable are led earth plate vertical with first and are connected, and leading b1 in the first coaxial cable runs through dielectric-slab
And be connected in the second connection hole with vertical connection bridge BD B ends, pass through vertical connection bridge BD and the second vertical radiation paster phase
Even；First vertical radiation paster is not connected with vertical connection bridge BD, but the first vertical radiation paster passes through the second connecting pole and
One vertical earth plate is connected；Vertical connection bridge BD D ends are connected by the second metal column earth plate vertical with second.
Using the beneficial effect of above-mentioned further scheme：This structure can cause antenna to obtain preferable reflectance factor
S11 and transmission coefficient S21.
Further, in addition to supporting plate, the first coaxial cable and the second coaxial cable run through supporting plate；First metal column
Stretch out with the second metal column and be fixedly connected with supporting plate.
Further, be provided with grounded metal paster in supporting plate, the first coaxial cable it is outer lead, the second coaxial cable it is outer
Lead, the first metal column and the second metal column are all connected with metal patch.
Using the beneficial effect of above-mentioned further scheme：Above-mentioned supporting plate, grounded metal paster and with the first metal column
The barron structure of this antenna is collectively formed with the second metal column, jointly to two passages of antenna --- vertical polarization and horizontal polarization
Reflectance factor S11 and transmission coefficient S21 optimize.
Further, controlled switch is microwave switch.
Using the beneficial effect of above-mentioned further scheme：The microwave switch is polarized in connected state by antennas orthogonal
Component receives and the signal of transmitting can be smoothly by but when the switch receives " signal in system construction drawing below
When the lightning that processing and warning module " is sent attacks pre-warning signal, believe the antennas orthogonal being attached thereto polarizes in 100 μ s
Number passage is closed, and is cut off the path that thunder and lightning is coupled into the vertical polarization passage of backend electronics system in advance, is reached reduction thunder and lightning
The protective characteristic of safeguard and the relation of lightning return stroke current wave mode, so as to improve the protection effect of this guard system.
In addition, present invention also offers a kind of intelligent initiative lightning protection system, including the lightning protection antenna described in any of the above-described,
And radio frequency unit, A/D modular converters and the demodulator being sequentially connected with lightning protection antenna, the signal of the controlled switch of lightning protection antenna
Input connects the signal output part of signal transacting and warning module, and signal transacting connects magnetic with the signal input part of warning module
The induction coil of antenna and monitoring lightning rod electric current.
The beneficial effects of the invention are as follows：Signal transacting and warning module are for lightning current and magnetic caused by up connection guide
The downward stepped leader of antenna collection produces magnetic field pulse and is filtered denoising；When signal transacting and warning module obtain
When the pre-warning signal by protection equipment or near it will be attacked by stating lightning, output control signal is opened to the controlled of lightning protection antenna
Close, make it before fighting back first, the perpendicular polarisation components that cut-out antenna most easily couples with lightning so that Lightning Electromagnetic Fields
Main energy can not be coupled to by the perpendicular polarisation components of antenna up to rear end equipment, effectively carried using antenna so as to reach
The purpose of height communication electronic equipments lightning protection reliability.
Brief description of the drawings
Induced voltage schematic diagram when Fig. 1 is inventive antenna vertical polarization；
Induced voltage schematic diagram when Fig. 2 is inventive antenna horizontal polarization；
Fig. 3 is the tendency chart that the rear end induced voltage peak value of inventive antenna changes with antenna polarization deflection angle；
Fig. 4 is connecting bridge structural representation of the present invention；
Fig. 5 is inventive antenna vertical polarization component and horizontal polarization component diagram；
Fig. 6 schemes for inventive antenna reflectance factor S11；
Fig. 7 schemes for inventive antenna transmission coefficient S21；
Fig. 8 is inventive antenna barron structure figure；
Fig. 9 is inventive antenna overall structure figure；
Figure 10 is present system schematic diagram.
In figure, 1- first level radiation patch；2- the first vertical radiation pasters；The second horizontal radiations of 3- paster 3；4- second
Vertical radiation paster；5- dielectric-slabs；The connecting holes of 6- first；The connecting holes of 7- second；The connecting poles of 8- first；The connecting poles of 9- second；10-
First metal column；The metal columns of 11- second；12- supporting plates；The coaxial cables of 13- second；The coaxial cables of 14- first.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Found by analyzing and researching, when doublet antenna is in vertical polarization state, its polarization characteristic and lightning channel
Neighbouring direction of an electric field matches, and is then mismatched completely during horizontal polarization.For on communication iron tower, while pole can again
Can for the antenna near lightning channel, its work polarization mode for the protecting of rear end equipment, anti-interference etc. all very
It is important.
Below under different polarized states, the coupling effect of antenna is analyzed, antenna is arranged on it is remote from tower 1m, away from
From the ground (tower (including lightning rod) high 30m) at high 29m.Deflection angle is 0 degree when antennas orthogonal polarizes, deflection angle during horizontal polarization
For 90 degree.When then deflection angle is 0 and 90 degree, day line back end induced voltage difference is as shown in Figure 1 and Figure 2.As seen from the figure, antenna hangs down
Induced voltage during straight polarization is maximum, and its peak value can reach 101.8V.With the increase of deflection angle, antenna induction voltage is gradual
Diminish, until antenna induction voltage reaches minimum value, almost 0 during horizontal polarization.
For ease of observation day line back end induced voltage peak value with the changing rule of antenna rotation angle, two observations are separately set
Point, it is respectively 25 and 20m apart from ground away from steel tower 1m, spends from 0 to 90 for deflection angle and calculated once according to every 15 degree, pin
7 deflection angles are analyzed, with reference to the result of calculation of afore-mentioned distance ground 29m antennas, are pointed to the day of three points of observation
Line back end induced voltage peak value carries out curve fitting, then the rear end induced voltage peak value of antenna is with the trend that deflection angle changes such as figure
Shown in 3.
As seen from Figure 3, day line back end induced voltage peak value and deflection angle are into the approximate linear relationship (phase of its matched curve
Related parameter is as shown in table 1), table 1 provides the slope and intercept of fitting a straight line in the case of three kinds, and slope characterizes rear end induced electricity voltage crest
Value is with the rate of change of deflection angle, rear end induced voltage peak value of the intercept sign when antenna is vertical polarization.From table 1,29-
During 25m, slope changes greatly, and intercept amplitude of variation is also very big；And during 25m-20m, slope and intercept change substantially diminish.
The matched curve parameter of table 1
| Its line-spacing ground level (m) | Slope | Intercept (V) |
| 29 | 1.06493 | -101.4552 |
| 25 | 0.21986 | -21.40393 |
| 20 | 0.18273 | -16.67523 |
As can be seen here, when antenna is near steel tower, no matter which type of height it is located at, and is vertical polarization component all the time
It is the part that thunder and lightning electromagnetic energy is easiest to coupling, and horizontal polarization is to be most difficult to the part of coupling all the time.
Therefore, based on above-mentioned analysis, as shown in Fig. 4 to Fig. 9, the invention provides a kind of intelligent active lightning protection antenna, bag
Dielectric-slab 5 is included, and the vertical polarization component and horizontal polarization component being arranged on dielectric-slab 5；Vertical polarization component connects successively
Connect the first coaxial cable 14 and controlled switch；Horizontal polarization component connects the second coaxial cable 13, and controlled switch can be microwave
Switch.The vertical polarization component of antenna and horizontal polarization component are separated into two passages to be received, synthesized then at rear end, but
Vertical polarization component before synthesis is provided with controlled switch (microwave switch), when external equipment monitors atural object tip (such as
Lightning rod) on caused upward leader when, send lightening strikes pre-warning signal to microwave switch immediately, the microwave switch will with hang down
The signalling channel of straight polarization component connection is closed, that is, causes lightning to be coupled into the passage of day line back end by vertical polarization component
Cut-out so that the portion of energy can not reach antenna rear end equipment, so as to reach the purpose of protection back end electronics.Vertical pole
The cut-out for changing component is to develop in lightning and reach ground, and the protection completed before attacking ground acts, therefore, this lightning protection
Antenna will be fought back with lightning caused by pulse current wave mode and whether be that direct attack or induced lightening are unrelated.
When the object near lightning hits antenna, e.g., the lightning rod on the steel tower of mobile communication base station, now, lightning
Electromagnetic energy will be coupled into the signal wire being connected with antenna by antenna, the electronic equipment structure being connected to rear end with signal wire
Into interference or damage/calamity is caused to threaten, and the electromagnetic energy of lightning is most easily coupled by vertical polarization component, with horizontal polarization group
The coupling efficiency of part is extremely low, therefore after the two parts of signals is separated into individual reception and feed, you can with before lightning attacks,
The signalling channel being connected with vertical polarization component is closed so that the main energy of lightning cannot be introduced into signal wire, then can reach
Back end electronics are carried out with protection and jamproof purpose.
Wherein, horizontal polarization component includes being arranged on the level of first level radiation patch 1, second of the upper surface of dielectric-slab 5
Radiation patch 3, be arranged on the lower surface of dielectric-slab 5 respectively with first level radiation patch 1, the position of the second horizontal radiation paster 3
Symmetrical first level earth plate 1', the second horizontal grounding plate 3', and horizontal connection bridge AC；In first level radiation patch 1
The first connecting hole 6 is provided with, a1 is led in the second coaxial cable 13 through dielectric-slab 5 and is connected with horizontal at the first connecting hole 6
The A ends for meeting bridge AC are connected, and are connected by horizontal connection bridge AC with the second horizontal radiation paster 3；First level radiation patch 1 not with
Horizontal connection bridge AC is connected, but first level radiation patch 1 is connected by the first connecting pole 8 with first level earth plate 1'；Even
The C-terminal for meeting bridge AC is connected by the first metal column 10 with the second earth plate 3'.
Vertical polarization component includes being arranged on the first vertical radiation paster 2 of the upper surface of dielectric-slab 5, the second vertical radiation patch
Piece 4, be arranged on the lower surface of dielectric-slab 5 respectively with the first vertical radiation paster 2, the second vertical radiation paster 4 positional symmetry
First vertical earth plate 2', the second vertical earth plate 4', and vertical connection bridge BD；It is provided with first vertical radiation paster 2
Second connecting hole 7, the outer of the first coaxial cable 14 are led earth plate 2' vertical with first and are connected, and b1 is led in the first coaxial cable 14
B ends through dielectric-slab 5 and with vertical connection bridge BD at the second connecting hole 7 are connected, and are hung down by vertical connection bridge BD and second
Straight radiation patch 4 is connected；First vertical radiation paster 2 is not connected with vertical connection bridge BD, but the first vertical radiation paster passes through
Second connecting pole 9 earth plate 2' vertical with first is connected；Vertical connection bridge BD D ends are vertical with second by the second metal column 11
Earth plate 4' is connected.
As shown in Figure 6, Figure 7, antenna can be obtained using vertical polarization component and this structure of horizontal polarization component
Preferable reflectance factor S11 and transmission coefficient S21, S11 parameter are below -12dB in 900MHz or so, and S21 parameters exist
900MHz or so is below -30dB.
As shown in figure 8, also including supporting plate 12, the first coaxial cable 14 and the second coaxial cable 13 run through supporting plate
12；First metal column 10 stretches out with the second metal column 11 to be fixedly connected with supporting plate 12.It is provided with and connects in supporting plate 12
Ground metal patch, the first coaxial cable 14 it is outer lead, the second coaxial cable 13 it is outer lead, the first metal column 10 and the second metal column
11 are all connected with metal patch altogether.Above-mentioned supporting plate, grounded metal paster and with the first metal column and the common structure of the second metal column
The barron structure of cost antenna, jointly to two passages of antenna --- the reflectance factor S11 and biography of vertical polarization and horizontal polarization
Defeated coefficient S 21 optimizes.
In addition, as shown in Figure 10, the present invention additionally provides a kind of intelligent active lightning protection system based on intelligent active lightning protection antenna
System, including above-mentioned lightning protection antenna, and be sequentially connected with the lightning protection antenna signal transacting and warning module, radio frequency unit,
A/D modular converters and demodulator, the signal input part connection signal transacting and warning module of the controlled switch of the lightning protection antenna
Signal output part, the signal transacting connected with the signal input part of warning module magnetic antenna and monitor lightning rod electric current sense
Answer coil.
Because putting for antenna can be random, here it is considered that port B is connecing for the horizontal polarization component connection of antenna
Mouthful, and A is the interface of vertical polarization component connection, then needs to connect a controlled active signal surge guarantor on the A of port
Device, i.e., the signal SPD containing microwave switch are protected, the microwave switch needs to be resistant to the voltage of tens to one hectovolt or so, specific width
Value is, it is necessary to depending on antenna mounting locations.When the moment that lightning is attacked in face of ground, the microwave switch on the A channel of port is receiving
To after the pre-warning signal as caused by " signal transacting and warning module ", the microwave switch cuts off the road signal wire so that passes through
The energy of vertical polarization coupling can not reach rear end, port channel B normal work, so as to which Lightning Electromagnetic Pulse is passed through into day
Line vertical polarization component is coupled into main energy (portion of energy is also the component for forming biggest threat) barrier of circuit rear
Hold outside electronic equipment, so as to reach the purpose of protection rear end equipment.
Signal transacting and warning module are for lightning current and the descending step of magnetic antenna collection caused by up connection guide
Guide produces magnetic field pulse and is filtered denoising；
Judged for the signal of induction coil (or coaxial shunt) collection；
Judged for the magnetic field pulse on magnetic antenna；
When simultaneously coil (or coaxial shunt) and magnetic antenna meet that (induction coil or coaxial shunt obtain correlated condition
Signal Rule of judgment：1. whether thunder and lightning signal pulse stream full width at half maximum is 1-50 microseconds2. thunder and lightning signal pulse stream frequency spectrum
Whether integrated distribution is in 0~300KHz for energy, and spectrum signature is shown as frequency elevation energy successively decreases3. the pulse spacing is wide
Whether degree is less than 300 microseconds4. whether twice in succession and appear above and meet the lightning current pulse of above-mentioned condition 1., 2., 3.
SignalThe signal Rule of judgment that magnetic antenna obtains：1. whether the time width of magnetic field pulse signal is less than 1 microsecond2. whether continuous two
Secondary appear above meets the thunder and lightning signal pulse stream of above-mentioned condition 1.), controlled switch of the output control signal to lightning protection antenna,
Make it before fighting back first, the vertical polarization passage that cut-out antenna most easily couples with lightning so that Lightning Electromagnetic Fields
Main energy can not reach rear end equipment with carrying out energy coupling by the vertical polarization passage of antenna, have so as to reach using antenna
Effect improves the purpose of communication electronic equipment lightning protection reliability.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (7)
1. a kind of intelligent active lightning protection antenna, it is characterised in that including dielectric-slab (5), and be arranged on hanging down on dielectric-slab (5)
Straight polarization component and horizontal polarization component；Vertical polarization component is sequentially connected the first coaxial cable (14) and controlled switch；It is horizontal
Polarization component connects the second coaxial cable (13).
2. intelligent active lightning protection antenna according to claim 1, it is characterised in that horizontal polarization component includes being arranged on Jie
The first level radiation patch (1) of scutum (5) upper surface, the second horizontal radiation paster (3), are arranged on dielectric-slab (5) lower surface
Respectively with first level radiation patch (1), second horizontal radiation paster (3) positional symmetry first level earth plate (1'),
Second horizontal grounding plate (3'), and horizontal connection bridge AC；The first connecting hole (6) is provided with first level radiation patch (1),
A1 is led in second coaxial cable (13) through dielectric-slab (5) and at the first connecting hole (6) place and horizontal connection bridge AC A ends phase
Even, it is connected by horizontal connection bridge AC with the second horizontal radiation paster (3)；First level radiation patch (1) not with horizontal connection
Bridge AC is connected, but (1') first level radiation patch (1) is connected by the first connecting pole (8) with first level earth plate；Connection
(3') bridge AC C-terminal is connected by the first metal column (10) with the second earth plate.
3. intelligent active lightning protection antenna according to claim 2, it is characterised in that vertical polarization component includes being arranged on Jie
The first vertical radiation paster (2), the second vertical radiation paster (4) of scutum (5) upper surface, are arranged on dielectric-slab (5) lower surface
Respectively with the first vertical radiation paster (2), second vertical radiation paster (4) positional symmetry the first vertical earth plate (2'),
Second vertical earth plate (4'), and vertical connection bridge BD；The second connecting hole (7) is provided with first vertical radiation paster (2),
The outer of first coaxial cable (14) is led earth plate vertical with first and is (2') connected, and b1 is led in the first coaxial cable (14) through being situated between
Scutum (5) is simultaneously connected at the second connecting hole (7) place with vertical connection bridge BD B ends, vertical with second by vertical connection bridge BD
Radiation patch (4) is connected；First vertical radiation paster (2) is not connected with vertical connection bridge BD, but the first vertical radiation paster leads to
The second connecting pole (9) earth plate vertical with first is crossed (2') to be connected；Vertical connection bridge BD D ends by the second metal column (11) with
(4') second vertical earth plate is connected.
4. intelligent active lightning protection antenna according to claim 3, it is characterised in that also including supporting plate (12), first is same
Shaft cable (14) and the second coaxial cable (13) run through supporting plate (12)；First metal column (10) and the second metal column (11) are equal
Stretch out and be fixedly connected with supporting plate (12).
5. intelligent active lightning protection antenna according to claim 4, it is characterised in that ground connection gold is provided with supporting plate (12)
Belong to paster, the first coaxial cable (14) it is outer lead, the second coaxial cable (13) it is outer lead, the first metal column (10) and the second metal
Post (11) is all connected with metal patch.
6. intelligent active lightning protection antenna according to claim 1, it is characterised in that controlled switch is microwave switch.
A kind of 7. intelligent initiative lightning protection system, it is characterised in that including the lightning protection antenna described in any one of claim 1 to 6, with
And radio frequency unit, A/D modular converters and the demodulator being sequentially connected with lightning protection antenna, the signal of the controlled switch of lightning protection antenna are defeated
Enter the signal output part of end connection signal transacting and warning module, signal transacting connects magnetic day with the signal input part of warning module
The induction coil of line and monitoring lightning rod electric current.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112072601A (en) * | 2019-06-10 | 2020-12-11 | 成都信息工程大学 | Lightning autonomous monitoring and active defense system and method |
| CN112290228A (en) * | 2020-12-29 | 2021-01-29 | 成都信息工程大学 | Linear-circularly polarized reconfigurable antenna and lightning protection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112072601A (en) * | 2019-06-10 | 2020-12-11 | 成都信息工程大学 | Lightning autonomous monitoring and active defense system and method |
| US11289896B2 (en) | 2019-06-10 | 2022-03-29 | Chengdu University Of Information Technology | System and method for autonomous monitoring and active defense of lightning |
| CN112072601B (en) * | 2019-06-10 | 2022-07-01 | 成都信息工程大学 | Lightning autonomous monitoring and active defense system and method |
| CN112290228A (en) * | 2020-12-29 | 2021-01-29 | 成都信息工程大学 | Linear-circularly polarized reconfigurable antenna and lightning protection method |
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