CN2757138Y - Intelligent thunder and lightning environment monitor - Google Patents
Intelligent thunder and lightning environment monitor Download PDFInfo
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- CN2757138Y CN2757138Y CN 200420102871 CN200420102871U CN2757138Y CN 2757138 Y CN2757138 Y CN 2757138Y CN 200420102871 CN200420102871 CN 200420102871 CN 200420102871 U CN200420102871 U CN 200420102871U CN 2757138 Y CN2757138 Y CN 2757138Y
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Abstract
The utility model relates to an intelligent thunder and lightning environment monitor which is used for detecting thunder and lightning inductive high current and earth resonance low current on a grounding wire of electric equipment. The utility model mainly comprises a thunder and lightning information monitoring unit, an earth resistance monitoring unit, an alarm unit, an interface circuit and a power supply unit, wherein the thunder and lightning information monitoring unit comprises a processor, a sensing probe, a high-speed sampling circuit and an LCD display screen; the sensing probe, the high-speed sampling circuit and the LCD display screen are respectively connected with the processor and are coupled on the grounding wire of the electric equipment; the earth resistance monitoring unit comprises a geodesic active sensor and a detecting circuit of oscillation damping values, wherein the geodesic active sensor is coupled on the grounding wire of the electric equipment, and the detecting circuit of oscillation damping values is connected behind the sensor; an analog to digital converter is connected behind the detecting circuit of oscillation damping values and is connected with a microprocessor. The utility model can monitor the thunder and lightning inductive high current and the earth resonance low current, and has advantages of intellectualization, miniaturization and low cost.
Description
Technical field
The utility model relates to a kind of lightning environment monitoring installation, particularly relates to a kind of lightning environment monitoring installation that can measure lightning information and stake resistance information simultaneously.
Background technology
Thunder and lightning early warning, thunder and lightning are monitored afterwards, the ground wire resistance measurement be widely used in the digitizing macroreticular system (as, electric power, railway, oil, communication, airport, national defence and finance etc.)." lightning protection reinforcing, ground wire optimization " to facilities such as digital information infrastructure, electromechanical integration main facilities, worker China Democratic National Construction Associations, a highly reliable intelligent environment monitoring device is provided, the quantitative test of lightning protection mitigation assessment, lightning disturbance, aspects such as thunder and lightning disaster setting loss in the insurance business there are record and ask for the effect of authenticity proof, have quick and easy, accurate and effective characteristic.
At present, extensively adopt weather radar in the weather forecast field, can in 50 kilometers (mesoscale) spatial domain scopes, carry out early warning the formation of atmospheric over-voltage (thunder and lightning).But it is in particular location 5 kilometer range that lightning is landed, really powerless.To the harm of 1.5 square kilometres of scopes of shock wave of Lightning Electromagnetic Pulse, can't determine.
And existing measurement to stake resistance can only be adopted mensuration once.The industrial frequency electric resistance measuring instrument must disconnect ground wire and system equipment, and owing to the electric current utmost point, the long line requirement of voltage pole, to the measurement of architecture ensemble, difficulty strengthens.Underground pipe network influences measuring accuracy.And the pincers pattern impulse resistance measuring instrument of employing import, measurement point is many, but dynamic error is big, and it is restricted to clamp down on head pincers line position.
The utility model content
Technical problem to be solved in the utility model is: a kind of have intelligence, high precision and the highly reliable intelligent lightning environment monitoring installation that can detect lightning information and stake resistance information simultaneously are provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of intelligent lightning environment monitoring installation is provided, it is used for big stream of lightning induction and the little electric current of the earth resonance on the ground wire of detection equipment, it mainly includes the lightning information monitoring means, ground resistance monitoring means, alarm unit, interface circuit and power supply unit, lightning information monitoring means comprise a processor and respectively with the ground wire that is coupling in consumer that this processor links to each other on the sensing probe that is used to gather the big current information of lightning induction, high-speed sampling circuit and LCD display; Resistance monitoring means in ground includes a geodesic line active sensor that is used to gather the little electric current of the earth resonance that is coupling on the ground wire of consumer, be connected in the oscillation damping value testing circuit behind this sensor, thereafter be connected to an A/D converter, this A/D converter is connected with microprocessor; And described alarm unit mainly includes the MCU state detection circuit that is connected on the microprocessor and be connected real-time monitoring circuit on the high-speed sampling circuit, and LED that is used to report to the police and sound generator, and it is used for reporting to the police unusually on the microprocessor.
In the further improvement of the technical program, described power supply unit adopts independently AC/DC double switch power.
In the further improvement of the technical program, described this high-speed sampling circuit includes proportion function circuit, non-linear integral circuit, differentiation function circuit, digitizing passband filtering circuit.
In the further improvement of the technical program, described inductor is a kind of air core inductor.
In the further improvement of the technical program, described induction lightening sensor electronic circuit mainly includes successively the inductive coil that is electrically connected, rectification circuit, the holding circuit that is made of high frequency capacitance C2, follower and the comparer that is used to realize electric coupling and buffering, also is provided with one and is used for the holding circuit that overvoltage protection and spike pulse absorb between this inductive coil and rectification circuit; The signal of this follower output is passed to A/D converter, and the signal that comparer produces is to the interruption of microprocessor, and the reset signal of holding circuit comes from microprocessor.
In the further improvement of the technical program, produce a reference voltage by resistance R 5 and resistance R 6, offer described comparer.
In the further improvement of the technical program, described rectification circuit is that high speed commutator tube D3, high speed commutator tube D4, high speed commutator tube D5 and the high speed commutator tube D6 of nanosecond forms by the response time.
In the further improvement of the technical program, described follower is by amplifier U1a, resistance R 3, and the adjustable resistance RT1 that is used for the calibration of error forms.
In the further improvement of the technical program, described interface circuit is connected on the microprocessor, and it includes serial, parallel and wave point, and wave point is used for carrying out the data that the radio communication transmission is tested with external equipment.
The beneficial effects of the utility model are: the utility model intelligent lightning environment monitoring installation is a kind of to big stream of lightning induction (kilo-ampere/microsecond level electric current) and the little electric current of the earth resonance (milliampere/Millisecond electric current), the supervising device of the full dynamic and intelligentization of zero-ground voltage (hectovolt step voltage) drift of digitizing consumer.Adapt to different electricity consumptions or non-power utilization environment, to the atmospheric over-voltage of local small scale environment calculator room equipment and the monitoring of terrestrial current interference.After randomness, probabilistic thunder and lightning incident take place, time, number of times, the destructive energy amplitude of the equipment that flows through of acquisition tracking in time and record lightning current.To seasonal variations, weather weather ground electric potential fluctuation, the variation of stake resistance, cause the record and the statistics of the electrical quantitys such as variation of zero-ground voltage.Anti-interference Design to digitizing infrastructure electromagnetic compatibility EMC and EMI provides effective subenvironment electrical quantity foundation.The quantitative statistics that the lightning hazards accident is provided and analyze data.Solved security that information equipment that informationized society, people depend on for existence uses, reliability technical barrier to lightning protection and ground connection design under varying environment.This height of devices intellectuality, miniaturization, low cost.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Fig. 3 is the circuit block diagram of sensor of thunder and lightning of the present utility model.
Fig. 4 is the circuit theory diagrams of sensor of thunder and lightning of the present utility model.
Embodiment
As shown in Figure 1, be theory diagram of the present utility model.It has disclosed a kind of on-the-spot continuous monitoring that is used for the lightning protection of information infrastructure and electromechanical integration equipment and ground connection, zero/ground drift voltage, real-time follow-up, record, the measurement mechanism of the time that the concentrated expression thunder and lightning takes place, the amplitude of thunder and lightning energy, various ground wire motional impedance value and zero/electrical quantitys such as ground drift voltage.It mainly includes: the lightning information monitoring means, hinder monitoring means, alarm unit, interface circuit and power supply unit.Wherein, the lightning information monitoring means comprises a processor (MCU) and the sensing probe that is used for induction lightening that links to each other with this processor respectively, high-speed sampling circuit and LCD display.This high-speed sampling circuit includes proportion function circuit, non-linear integral circuit, differentiation function circuit, digitizing passband filtering circuit.The sensing probe of induction lightening is used to gather the big electric current of lightning induction (kilo-ampere/microsecond level electric current) information.
Resistance monitoring means in ground includes a geodesic line high sensitivity active sensor, is connected in the oscillation damping value testing circuit behind this sensor, is connected to an A/D converter thereafter, and this A/D converter is connected with microprocessor.This geodesic line high sensitivity active sensor is used to gather the little electric current of the earth resonance (microampere/Millisecond electric current).
And described alarm unit mainly includes the MCU state detection circuit that is connected on the microprocessor and be connected real-time monitoring circuit on the high-speed sampling circuit, and LED that is used to report to the police and sound generator.It is used for reporting to the police unusually on the microprocessor.
Interface circuit is connected on the microprocessor, and it includes serial, parallel and wave point, and this serial or parallel interface can connect such as USB device or printer etc., and wave point is used for carrying out radio communication with external equipment (such as contactless magnetic card).For example, can adopt RF-Smart Card as the storage of data with carry, its secret key that is provided with 128bit/s has increased data security, to satisfy the privacy requirements of some users (as insurance company) to the data of thunder and lightning.
Power supply unit adopts independently AC/DC double switch power, and it adopts EMC and EMI design, and antijamming capability is fabulous.
Above-mentioned all unit modules all are located in the casing, and the panel of casing is provided with the membrane keyboard that is used to control.
The utility model has adopted the sampling and the amplitude reduction technique of the big electric current of lightning induction (kilo-ampere/microsecond level electric current); Induction lightening (tip) sensor and sample circuit at a high speed make precision and reliability be greatly improved (error is less than 2%).Circuit adopts two control redundancy designs that monitor, has improved the reliability of system.
The sampling and the oscillation damping measuring technique of the little electric current of the earth resonance (microampere/Millisecond electric current); Geodesic line high sensitivity active sensor and high-speed sampling circuit have taken the lead in adopting the method for testing of shaking damping in the earth resistance, make anti-interference (measuring accuracy) of test improve greatly, and for the user, simplify the operation of test greatly.
Principle of work of the present utility model is as described below: by being coupling in induction lightening sensor, the geodesic line high sensitivity active sensor on the system earth line, obtain induction big electric current of thunder and the little electric current instantaneous interference of the earth resonance source Non-Linear Ocsillation pulse signal;
Carry out the normalization waveform processing at big electric current of induction thunder and the little electric current instantaneous interference of the earth resonance source Non-Linear Ocsillation pulse signal that sensor is obtained that carry out proportion function calculating, non-linear integral function calculation, differentiation function calculating and digitizing bandwidth-limited circuit by the high-speed sampling circuit;
Waveform after the processing carries out the conversion of simulating signal and digital signal by A/D converter; Digital signal after the conversion send the MCU processor to carry out calculation process, relatively calculate with the program that writes, electrical quantitys such as time, number of times, amplitude of lightning current, voltage ripple of power network, impedance ground, zero-ground voltage drift amplitude are stored in the storer (not shown) of carrying out being connected with microprocessor;
The data-signal of microprocessor stores can encoded device be undertaken by LCD display that number shows, displaying contents has: data such as time, number of times, voltage ripple of power network, zero-ground voltage drift amplitude, amplitude of lightning current, impedance ground, by the membrane keyboard conversion query or reset;
The data of microprocessor stores connect hummer, alarm lamp through serial (I/O, USB) interface circuit, sound light alarming circuit, long-range distant communication interface circuit and finish sound and light of alarm, connect mini-printer and finish the data output function, connect unruled card and finish wireless remote control system far away and reading and writing data.
As shown in Figure 2, be circuit theory diagrams of the present utility model.Wherein, chip U1 is main disposal system unit, the function that this chip drives with microprocessor MCU, A/D converter and LCD, and this chip U1 mainly finishes program implementation (processings), the conversion of A/D and LCD realized driving.
U2 is frequency detector (Frequence Detecter), mainly finishes the monitoring to the U1 state, when the U1 operation irregularity is to send alerting signal.U3 is the alarm sound generator.U4 is the I/O expanded circuit, and U5 and U6 are data storage (EEPROM), and U7 is the I/O mouth holding circuit of being made up of inductance, electric capacity and clamp diode, is used to resist the interference of pulse/surge.
Please refer to Fig. 3 and shown in Figure 4, be respectively the circuit block diagram and the circuit theory diagrams of the induction lightening sensor electronic circuit in the utility model.The inductor of inductor of the present utility model for developing at the collection of the big electric current of induction lightening specially is characterized in that having adopted high speed rectification circuit and holding circuit.And sampling thief is a kind of sampling thief of simplification.Current thunder and lightning counter and ceraunograph measuring device, majority has adopted the inductor of ferromagnetic medium, in long-term use, magnetization can occur and causes inductor precise decreasing even inefficacy; And it is that proportionally mode is exported (transformer), and follow-up treatment circuit is had very high rate request, causes design difficulty and cost very high.In the utility model, simplified design has solved circuit well to high-speed requirement.Be particularly useful for peak value collection to surge current.
This induction lightening sensor electronic circuit mainly includes inductive coil, rectification circuit, holding circuit, follower and the comparer that is electrically connected successively.Wherein, also be provided with a holding circuit between this inductive coil and the rectification circuit; One reference voltage offers this comparer; The signal of this follower output is passed to A/D converter, and the signal that comparer produces is to the interruption of microprocessor, and the reset signal of holding circuit comes from microprocessor.
Wherein, inductor is a kind of high-quality air core inductor L, does not have magnetic medium magnetization and influences the problem of precision; It can set up initial current exactly, has finished the sampling of the lightning surge peak value of short time (nanosecond).And holding circuit, by voltage stabilizing diode MOV and capacitor C 1, voltage stabilizing diode D1, D2 form, and it is used for overvoltage protection and spike pulse absorbs; Rectification circuit is by high speed commutator tube D3, D4, and D5, D6 forms, and the response time is a nanosecond; Holding circuit is to utilize the charging of capacitor C 2 to finish the maintenance function, and described capacitor C 2 is the electric capacity of high frequency characteristics; The hold reset circuit: by resistance R 1, resistance R 2 and triode Q1 form, and the reset signal after the sampling is from microprocessor; Follower is by amplifier U1a, resistance R 3, and adjustable resistance RT1 forms, and it is used to realize electric coupling and buffering, and adjustable RT1 is used for the calibration of error.
Reference voltage and comparer: be used to produce interrupt request to microprocessor.Wherein reference voltage is the beginning voltage of sampling.This reference voltage is provided by resistance R 5 and resistance R 6.
In the utility model, be the damping that scans test macro by different frequency, in order to determine stake resistance.
The utility model intelligent lightning environment monitoring installation is a kind of to big stream of lightning induction (kilo-ampere/microsecond level electric current) and the little electric current of the earth resonance (milliampere/Millisecond electric current), the supervising device of the full dynamic and intelligentization of zero-ground voltage (hectovolt step voltage) drift of digitizing consumer.Adapt to different electricity consumptions or non-power utilization environment, to the atmospheric over-voltage of local small scale environment calculator room equipment and the monitoring of terrestrial current interference.After randomness, probabilistic thunder and lightning incident take place, time, number of times, the destructive energy amplitude of the equipment that flows through of acquisition tracking in time and record lightning current.To seasonal variations, weather weather ground electric potential fluctuation, the variation of stake resistance, cause the record and the statistics of the electrical quantitys such as variation of zero-ground voltage.Anti-interference Design to digitizing infrastructure electromagnetic compatibility EMC and EMI provides effective subenvironment electrical quantity foundation.The quantitative statistics that the lightning hazards accident is provided and analyze data.Solved security that information equipment that informationized society, people depend on for existence uses, reliability technical barrier to lightning protection and ground connection design under varying environment.This height of devices intellectuality, miniaturization, low cost.
Claims (9)
1. intelligent lightning environment monitoring installation, it is used for big stream of lightning induction and the little electric current of the earth resonance on the ground wire of detection equipment, its mainly include the lightning information monitoring means, hinder monitoring means, alarm unit, interface circuit and power supply unit, it is characterized in that: the lightning information monitoring means comprise a processor and respectively with the ground wire that is coupling in consumer that this processor links to each other on the sensing probe that is used to gather the big current information of lightning induction, high-speed sampling circuit and LCD display; Resistance monitoring means in ground includes a geodesic line active sensor that is used to gather the little electric current of the earth resonance that is coupling on the ground wire of consumer, be connected in the oscillation damping value testing circuit behind this sensor, thereafter be connected to an A/D converter, this A/D converter is connected with microprocessor; And described alarm unit mainly includes the MCU state detection circuit that is connected on the microprocessor and be connected real-time monitoring circuit on the high-speed sampling circuit, and LED that is used to report to the police and sound generator, and it is used for reporting to the police unusually on the microprocessor.
2. intelligent lightning environment monitoring installation as claimed in claim 1 is characterized in that: power supply unit adopts independently AC/DC double switch power.
3. intelligent lightning environment monitoring installation as claimed in claim 1 is characterized in that: this high-speed sampling circuit includes proportion function circuit, non-linear integral circuit, differentiation function circuit, digitizing passband filtering circuit.
4. intelligent lightning environment monitoring installation as claimed in claim 1 is characterized in that: described inductor is a kind of air core inductor.
5. intelligent lightning environment monitoring installation as claimed in claim 1, it is characterized in that: described induction lightening sensor electronic circuit mainly includes successively the inductive coil that is electrically connected, rectification circuit, the holding circuit that is made of high frequency capacitance C2, follower and the comparer that is used to realize electric coupling and buffering, also is provided with one and is used for the holding circuit that overvoltage protection and spike pulse absorb between this inductive coil and rectification circuit; The signal of this follower output is passed to A/D converter, and the signal that comparer produces is to the interruption of microprocessor, and the reset signal of holding circuit comes from microprocessor.
6. intelligent lightning environment monitoring installation as claimed in claim 5 is characterized in that: produce a reference voltage by resistance R 5 and resistance R 6, offer described comparer.
7. intelligent lightning environment monitoring installation as claimed in claim 5 is characterized in that: described rectification circuit is that high speed commutator tube D3, high speed commutator tube D4, high speed commutator tube D5 and the high speed commutator tube D6 of nanosecond forms by the response time.
8. intelligent lightning environment monitoring installation as claimed in claim 5 is characterized in that: described follower is by amplifier U1a, resistance I3, and the adjustable resistance RT1 that is used for the calibration of error forms.
9. as each described intelligent lightning environment monitoring installation of claim 1 to 8, it is characterized in that: described interface circuit is connected on the microprocessor, it includes serial, parallel and wave point, and wave point is used for carrying out the data that the radio communication transmission is tested with external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420102871 CN2757138Y (en) | 2004-12-23 | 2004-12-23 | Intelligent thunder and lightning environment monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420102871 CN2757138Y (en) | 2004-12-23 | 2004-12-23 | Intelligent thunder and lightning environment monitor |
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| Publication Number | Publication Date |
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| CN2757138Y true CN2757138Y (en) | 2006-02-08 |
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| CN 200420102871 Expired - Fee Related CN2757138Y (en) | 2004-12-23 | 2004-12-23 | Intelligent thunder and lightning environment monitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218556A (en) * | 2014-09-30 | 2014-12-17 | 成都汉康信息产业有限公司 | Disaster prediction terminal with input protection |
| CN107064609A (en) * | 2017-03-30 | 2017-08-18 | 电子科技大学 | A kind of transformer station's lightning impulse prior-warning device |
| CN110221180A (en) * | 2019-07-01 | 2019-09-10 | 国网四川省电力公司电力科学研究院 | A kind of identification of 10kV distribution line lightning fault and localization method |
-
2004
- 2004-12-23 CN CN 200420102871 patent/CN2757138Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218556A (en) * | 2014-09-30 | 2014-12-17 | 成都汉康信息产业有限公司 | Disaster prediction terminal with input protection |
| CN107064609A (en) * | 2017-03-30 | 2017-08-18 | 电子科技大学 | A kind of transformer station's lightning impulse prior-warning device |
| CN110221180A (en) * | 2019-07-01 | 2019-09-10 | 国网四川省电力公司电力科学研究院 | A kind of identification of 10kV distribution line lightning fault and localization method |
| CN110221180B (en) * | 2019-07-01 | 2021-07-06 | 国网四川省电力公司电力科学研究院 | 10kV distribution line lightning stroke fault recognition and positioning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Wu Bo Designer after: Lin Yilong Designer after: Zeng Peiliang Designer before: Wu Bo Designer before: Lin Yilong Designer before: Li Limin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: WU BO; LIN YILONG; LI LIMIN TO: WU BO; LIN YILONG; ZENG PEILIANG |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060208 Termination date: 20111223 |