CN201965738U - Thunderstorm rain closes on electronics early warning appearance - Google Patents
Thunderstorm rain closes on electronics early warning appearance Download PDFInfo
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- CN201965738U CN201965738U CN2011200140935U CN201120014093U CN201965738U CN 201965738 U CN201965738 U CN 201965738U CN 2011200140935 U CN2011200140935 U CN 2011200140935U CN 201120014093 U CN201120014093 U CN 201120014093U CN 201965738 U CN201965738 U CN 201965738U
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Abstract
The utility model belongs to electronic technology and weather forecast technical field. It relates to a thunderstorm rain and closes on electronics early warning appearance. Thunderstorm rain closes on electronics early warning appearance comprise of direct-current power supply, resonance circuit, high-frequency amplifier circuit, reputation signal power amplifying circuit. The characteristics are: the oscillator coil (L2) in the resonance circuit has connected loading coil (L1) and antenna (T), the scintillation holding circuit still formed including PNP type transistor BG2 and NPN type transistor BG3 in the circuit. This utility model can the early warning thunder and lightning takes place before thunderstorm rain arrives a reputation electronics prior-warning device, it can detect in the sky of a distant place between the cloud layer or the electric discharge phenomena between cloud layer and the earth, closes on the early warning through the thunder and lightning to in the thunderstorm rain, we can in time take the corresponding lightning protection measure of hitting rapidly, pointed accomplishing prevents trouble before it happens, but it itself does not have lightning-arrest acting on.
Description
Technical field
The utility model belongs to electronic technology and weather forecast technical field, relates to a kind of thunderstorm rain and closes on the electronics early-warning apparatus.
Background technology
Thunder and lightning is well-known to the mankind's harmfulness.In thunderstorm rain season, we saw before thunderstorm rain arrives or hear the phenomenon that lightning flashes and thunder rumbles through regular meeting.The easy initiation fire of the generation of thunder and lightning, damage some electrical equipment, even jeopardize the safety of the person the thunder and lightning sensitivity! 6 annual～August, in the south of China is the season that thunderstorm rain takes place frequently, though local observatory forecast thunderstorm rain weather has certain accuracy, but in one day 24 hours, still there is very hang-up in the short-time forecast that takes place in that of thunderstorm rain period actually, closes on early warning and will have great importance if can scientifically carry out thunderstorm rain.
When having a large amount of static to concentrate at some zones overhead (that is: lightning upcoming a moment), the sky around this area can a lot of abrim rambling low frequencies (frequency is many below 300kHz) radio noise.In 1894, the father Bu Bofu (Popoff) of Russia's radio once used a lot of times to find this phenomenon, had made the portion's radio thunderstorm early warning receiver that beats the world according to this phenomenon.It is design based on the theory of Bu Bofu then that thunderstorm rain described in the utility model closes on the electronic alerts instrument, and it is exactly that a resonance frequency is greatly about the LF radio receiver of 250kHz～350kHz in fact.It utilizes electromagnetic induction principle, before thunderstorm rain arrives, receives the low frequency radio electromagnetsm ripple that is produced behind a large amount of static discharges that gather in the cloud layer.
In the past, the generation of meteorological station prediction thunderstorm rain weather at different levels, the arriving of thunderstorm rain cloud layer mainly relies on " range estimation " result of weatherman to predict, the ageing weak point of this prediction mode, and the accuracy rate of forecast is not high.By installing and using the thunderstorm electronic supervisory system, can accomplish that in advance a few minutes to one hour carry out thunderstorm rain and close on early warning.
We know: before thunderstorm rain arrives, there is a large amount of static in the thunderstorm rain cloud cluster of distant place sky, cause between the cloud layer or cloud layer and the earth between can produce electric discharge phenomena, its surrounding area will produce the very wide all rambling radio noise of frequency spectrum simultaneously.We can receive the lightning undesired signal of moment with general radio, but the ordinary amplitude modulation radio can only the very near electromagnetic wave in receiving range lightning center, and can only receive the lightning higher frequency range of medium frequency that generates electromagnetic waves, the scope that receives electromagnetic spectrum is very limited.Therefore, utilize the ordinary amplitude modulation radio to exist significant limitation, the also very worth discussion of the reliability of early warning as the thunderstorm rain prior-warning device.
Test, compare and analyze through multiple scheme, the utility model only uses a small amount of common discrete component to realize that apparatus structure is simple, cost is low, thunderstorm rain nowcasting result requirement comparatively reliably.
Below describe this thunderstorm rain in detail and close on the related correlation technique of electronics early-warning apparatus making.
The utility model content
Goal of the invention and beneficial effect: a kind of acousto-optic electronic early warning device that the utility model can the early warning thunder and lightning takes place before thunderstorm rain arrives, it can detect in the sky of a distant place between the cloud layer or the electric discharge phenomena between cloud layer and the earth, by the thunder and lightning in the thunderstorm rain is closed on early warning, we can in time promptly take corresponding anti-lightning strike measure, accomplish the anti-possible trouble of being loyal to targetedly.
Technical characterictic: thunderstorm rain closes on the electronics early-warning apparatus, form by direct supply, resonant circuit, high-frequency amplifier circuit, sound and light signal power amplification circuit, it is characterized in that: the oscillator coil in the resonant circuit (L2) is connected to pupin coil (L1) and antenna (T), also includes the flicker holding circuit that PNP transistor BG2 and NPN transistor BG3 form in the circuit.
Annexation in the composition of circuit and the circuit between the components and parts
1. an end of the oscillator coil in the resonant circuit (L2) is with connecing the end of resonant capacitance C1, an end of pupin coil (L1) and the end of coupling capacitance C2, another termination antenna (T) of pupin coil (L1), the other end connection circuit ground (GND) of the other end of oscillator coil (L2) and resonance capacitor C 1.
2. the base stage of another termination NPN transistor BG1 of the coupling capacitance C2 in the high-frequency amplifier circuit and an end of resistance R 1, the collector of NPN transistor BG1 is with the other end of connecting resistance R1, an end of resistance R 2 and the end of coupling capacitance C3, the positive pole (VCC) of another termination direct supply of resistance R 2, the emitter connection circuit ground (GND) of NPN transistor BG1.
3. the flicker holding circuit is by dropping resistor R6, PNP transistor BG2, NPN transistor BG3, diode (D1), trimmer potentiometer (RP1), resistance R 3, resistance R 4, resistance R 5 and electrochemical capacitor C4, capacitor C 5 is formed, it is characterized in that: the other end of coupling capacitance C3 is with the base stage that meets PNP transistor BG2 in the circuit, one end of trimmer potentiometer (RP1), one end of resistance R 3, the other end of trimmer potentiometer (RP1) and its lever arm are with an end that meets dropping resistor R6, the positive pole of diode (D1) and the collector of NPN transistor BG3, the negative pole of diode (D1) connects the emitter of PNP transistor BG2 and the positive pole of electrochemical capacitor C4, the other end of the negative pole connecting resistance R3 of electrochemical capacitor C4 and the base stage of NPN transistor BG4, the base stage of the collector series connection resistance R 4 back NPN transistor BG3 of PNP transistor B62 and an end of capacitor C 5, the other end of capacitor C 5 is with connecing the emitter of NPN transistor BG3 and an end of resistance R 5, the other end connection circuit ground (GND) of resistance R 5.
4. the sound and light signal power amplification circuit is made up of NPN transistor BG4, hummer (HA), light emitting diode (D2) and dropping resistor R7, it is characterized in that: the base stage of NPN transistor BG4 connects the emitter of NPN transistor B63, the collector of NPN transistor BG3 is with the negative pole of sending and receiving optical diode (D2) and the negative pole of hummer (HA), connect the positive pole (VCC) of direct supply behind the positive pole serial connection dropping resistor R7 of light emitting diode (D2), the positive pole of hummer (HA) connects the positive pole (VCC) of direct supply.
Principle of work
Thunderstorm rain closes on the electronics early-warning apparatus, and it has comprised that a tuned amplifier and acousto-optic promote amplifying circuit.Circuit is to be designed to will start the first order to amplify (BG1) near antenna when a large amount of RF energy are assembled, and thunder and lightning is many more when frequent more, and lightning will produce a lot of broadband wireless electrical noises at the VLF frequency band.Precaution device design is exactly to be used for examining ten near 300kHz and the thunderstorm generation of static electricity radionoise of the frequency in radio station artificially is not set, and picks up electromagnetic wave signal by antenna and pupin coil (L1) inspection then.Oscillator coil (L2) and capacitor C 1 are formed the resonant circuit of a 300kHz, and the base stage of utilizing one piece of capacitor C 2 to be coupled to first order transistor (BG1) is amplified.The signal that has been exaggerated is got on by the base stage of collector commissure to the second piece transistor (BG2) of transistor (BG1) again.Transistor (BG2) also is the some of flashing circuit, and flashing circuit is to be biased in not flash under the state at ordinary times, up to a large amount of radio frequencies (RF) activated with energy has been arranged high frequency amplifier transistor (BG2) and make its base earth, the positive and negative flashing circuit real-time working that is fed to finishes and finishes a flicker cycle until the C4 capacitor discharge.Circuit had just been reset when the D1 that passes through when C4 electric capacity charged once more.
Description of drawings
1. accompanying drawing is the circuit working schematic diagram that thunderstorm rain closes on the electronics early-warning apparatus.
2. the HA in the accompanying drawing is for carrying source of sound minisize dc piezoelectric buzzer, and its inside contains the active acoustical generator of oscillatory circuit and piezoelectric ceramic piece, and it does not need to add audio drive circuitry, connects direct supply and just can sound a buzzer.
Embodiment
Close on the technical requirement of the components and parts of the circuit working schematic diagram of electronics early-warning apparatus and description of drawings and the following stated according to thunderstorm rain shown in the drawings and implement, can realize the utility model.
The selection of components and parts and technical parameter thereof
1.BG1, BG3, BG4 all use 2N3904 type NPN transistor, BG2 selects 2N3906 type PNP transistor for use, require enlargement factor β 〉=180, be sure not to select for use high frequency transistor, because near the interference in the high frequency powerful radio station of high frequency transistor may being subjected to easily and the early warning that makes a mistake.
2.D1 be 1N914 type diode; D2 is a red light emitting diodes.
3.RP1 select the horizontal small trimmer potentiometer of common plastics encapsulation for use, its resistance is 22K Ω.
4.R1～R7 all uses RTX-1/8W type metalfilmresistor, resistance is respectively: 180K Ω, 3.9K Ω, 22K Ω, 2.2K Ω, 2.7K Ω, 51 Ω, 360 Ω.
5.C1～C3, C5 CC1 type high frequency Leaded Ceramic Disc Capacitor, 4 capacity are respectively 680PF, 0.01 μ F, 0.01 μ F, 5000PF.
6.C4 with CD11-16V type electrochemical capacitor, capacity is 100 μ F.
7.L1 be pupin coil, inductance value is 10mH; L2 is an oscillator coil, and inductance value is 330 μ H.
8.HA select for use the CPB14A12-4.0 type to carry source of sound minisize dc piezoelectric buzzer, its parameter is: physical dimension is φ 14mm * 7.5mm, weight is 0.9g, and operating voltage is 4V～9V, working current≤15mA.
9. antenna (T) is selected the copper wire of one section φ 1mm, length 650mm for use, also can select portable radio 550mm telescopic antenna commonly used for use.
10.DC can adopt four joint 7# alkaline batteries to compose in series the 6V direct supply.
Method for making and circuit debugging
Debugging work compares accurately when being preferably in sunny weather.The circuit debugging that thunderstorm rain closes on the electronics early-warning apparatus is very simple, only needs that trimmer potentiometer RP1 is transferred to light emitting diode D2 and just extinguishes and just can.After transferring trimmer potentiometer RP1 to save, you can use the hair dryer of AC-DC or electronic lighter etc. can produce the electrical equipment of electric spark near early-warning apparatus, and can a light emitting diode D2 who observe in the early-warning apparatus intermittent flicker one or two time.After trimmer potentiometer RP1 regulates, as thunderstorm rain arrive and light emitting diode D2 in the flicker, you can also turn on an AM radio simultaneously and be tuned to than low-frequency range and do not have on the frequency of broadcasting, listen and just listen whether be attended by mixed and disorderly radio noise, in case there is thunderstorm rain interim, it will flash light emitting diode D2 constantly, simultaneously hummer (HA) interrupted electric also can intermittently send " toot ... " sound comes.
Generally speaking, thunderstorm rain closes on the electronics early-warning apparatus and can effectively detect thunder and lightning take place in 8 kilometer range.When if the sensitivity of precaution device is not enough, you can improve its sensitivity to electromagnetic wave induction by the length that increases antenna, also can increase the one-level high frequency and amplify to increase and receive electromagnetic sensitivity.
Operation instruction
In order to reach the effect of early warning, thunderstorm rain closes on the electronics early-warning apparatus and preferably can be installed in relatively than being easier to the observation place, to strengthen its visuality.Because if only being used as early warning with a light emitting diode D2, you show, when it the time might not be noted and lose its forewarning function in flicker, thereby install a hummer (HA) additional promoting amplification circuits, to reach the combined effect that acousto-optic is reminded simultaneously.In addition, in order to prevent or reduce the generation of wrong early warning, require thunderstorm rain to close on the electronics early-warning apparatus and be placed on place away from various electromagnetic interference sources.
What must remind is: the utility model is a thunderstorm rain electronic early warning device, can be used as movable early warning utensils such as the open-air camping of donkey friend, but itself does not have lightning protection function!
Claims (5)
1. thunderstorm rain closes on the electronics early-warning apparatus, form by direct supply, resonant circuit, high-frequency amplifier circuit, sound and light signal power amplification circuit, it is characterized in that: the oscillator coil in the resonant circuit (L2) is connected to pupin coil (L1) and antenna (T), also includes the flicker holding circuit that PNP transistor BG2 and NPN transistor BG3 form in the circuit.
2. thunderstorm rain according to claim 1 closes on the electronics early-warning apparatus, it is characterized in that: an end of the oscillator coil in the resonant circuit (L2) is with connecing the end of resonant capacitance C1, an end of pupin coil (L1) and the end of coupling capacitance C2, another termination antenna (T) of pupin coil (L1), the other end connection circuit ground (GND) of the other end of oscillator coil (L2) and resonance capacitor C 1.
3. thunderstorm rain according to claim 1 closes on the electronics early-warning apparatus, it is characterized in that: the base stage of another termination NPN transistor BG1 of coupling capacitance C2 and an end of resistance R 1 in high-frequency amplifier circuit, the collector of NPN transistor BG1 is with the other end of connecting resistance R1, an end of resistance R 2 and the end of coupling capacitance C3, the positive pole (VCC) of another termination direct supply of resistance R 2, the emitter connection circuit ground (GND) of NPN transistor BG1.
4. thunderstorm rain according to claim 1 closes on the electronics early-warning apparatus, it is characterized in that: the other end of coupling capacitance C3 and the base stage of PNP transistor BG2 in the flicker holding circuit, one end of trimmer potentiometer (RP1), one end of resistance R 3 links to each other, the other end of trimmer potentiometer (RP1) and its lever arm are with an end that meets dropping resistor R6, the positive pole of diode (D1) and the collector of NPN transistor BG3, the negative pole of diode (D1) connects the emitter of PNP transistor BG2 and the positive pole of electrochemical capacitor C4, the other end of the negative pole connecting resistance R3 of electrochemical capacitor C4 and the base stage of NPN transistor BG4, the base stage of the collector series connection resistance R 4 back NPN transistor BG3 of PNP transistor BG2 and an end of capacitor C 5, the other end of capacitor C 5 is with connecing the emitter of NPN transistor BG3 and an end of resistance R 5, the other end connection circuit ground (GND) of resistance R 5.
5. thunderstorm rain according to claim 1 closes on the electronics early-warning apparatus, the sound and light signal power amplification circuit is by NPN transistor BG4, hummer (HA), light emitting diode (D2) and dropping resistor R7 form, it is characterized in that: the base stage of NPN transistor BG4 connects the emitter of NPN transistor BG3, the collector of NPN transistor BG3 is with the negative pole of sending and receiving optical diode (D2) and the negative pole of hummer (HA), connect the positive pole (VCC) of direct supply behind the positive pole serial connection dropping resistor R7 of light emitting diode (D2), the positive pole of hummer (HA) connects the positive pole (VCC) of direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200140935U CN201965738U (en) | 2011-01-18 | 2011-01-18 | Thunderstorm rain closes on electronics early warning appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200140935U CN201965738U (en) | 2011-01-18 | 2011-01-18 | Thunderstorm rain closes on electronics early warning appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965738U true CN201965738U (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200140935U Expired - Fee Related CN201965738U (en) | 2011-01-18 | 2011-01-18 | Thunderstorm rain closes on electronics early warning appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175926A (en) * | 2011-01-18 | 2011-09-07 | 黄宇嵩 | Thunderstorm electronic alarm |
| CN103440739A (en) * | 2013-09-16 | 2013-12-11 | 黄月华 | Rain alarm and automatic control device |
-
2011
- 2011-01-18 CN CN2011200140935U patent/CN201965738U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175926A (en) * | 2011-01-18 | 2011-09-07 | 黄宇嵩 | Thunderstorm electronic alarm |
| CN103440739A (en) * | 2013-09-16 | 2013-12-11 | 黄月华 | Rain alarm and automatic control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20120118 |