CN215066967U - Lightning positioner - Google Patents
Lightning positioner Download PDFInfo
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- CN215066967U CN215066967U CN202120558731.3U CN202120558731U CN215066967U CN 215066967 U CN215066967 U CN 215066967U CN 202120558731 U CN202120558731 U CN 202120558731U CN 215066967 U CN215066967 U CN 215066967U
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Abstract
The utility model discloses a lightning positioning device, which comprises a microprocessor, a power supply module, a GPS module, an electromagnetic field sensor, a thunder sensor, a receiving circuit, a first AD conversion module and a second AD conversion module; the power supply module and the GPS module are respectively electrically connected with the microprocessor; the electromagnetic field sensor is 4 antennas, wherein two antennas are orthogonal in the north-south direction, the other two antennas are orthogonal in the east-west direction, the receiving circuit comprises 4-channel signal conditioning circuits, the input end of each channel signal conditioning circuit is electrically connected with the corresponding antenna, the output end of each channel signal conditioning circuit is electrically connected with the input end of the first AD conversion module, and the output end of the first AD conversion module is electrically connected with the microprocessor; thunder sensor is through second AD conversion module and microprocessor electric connection, the utility model discloses a lightning positioner integrate, miniaturized and low-cost requirement.
Description
Technical Field
The utility model belongs to the technical field of the thunder and lightning is surveyed, in particular to lightning positioner.
Background
Lightning is a natural discharge phenomenon accompanied by lightning and thunder, and when the lightning occurs, strong transient electromagnetic pulses are generated, so that the physical mechanism and chemical components of the atmosphere are changed, and the lightning is usually accompanied by disastrous weather activities such as strong rainfall, tornado and the like. With the progress of social science and technology, lightning disasters not only interfere with the normal operation of systems such as aviation, power grids, communication and the like, but also cause more serious consequences of destroying buildings, causing fire disasters, even killing people and livestock and the like. China causes huge loss due to thunder disasters every year, and the United nations rank thunder as one of the most serious ten natural disasters. Therefore, an effective lightning positioning system is established for lightning monitoring, and the method has guiding significance for relevant research on understanding of lightning characteristics and prevention work of lightning disasters.
The lightning positioning system is an important basis for monitoring lightning and analyzing lightning activity characteristics of a meteorological department, and has guiding ideas for lightning early warning and prevention of systems such as power systems and communication systems. The positioning system utilizes a plurality of detection stations to monitor various lightning parameters such as time, position, attack times and the like of lightning stroke in real time, and is a scientific basis for lightning early warning. The detection efficiency and precision are main performance indexes of the lightning positioning system, and the positioning algorithm is a key factor influencing the performance of the system.
During the last century, scientists have begun to monitor lightning and wish to develop rules and techniques for locating lightning. Firstly, in order to deepen people's understanding of lightning protection and provide scientific research data of lightning protection theory, a remote measuring method is adopted to accurately monitor lightning parameters such as occurrence time and position information, lightning strength information and the like. And analyzing a lightning frequent region from the detected lightning data, performing focused monitoring on the region in a targeted manner, and predicting the lightning occurrence condition of the region in the future through the received lightning occurrence condition from the lightning data, so that the information is fully used in lightning protection and disaster reduction work to reduce economic loss caused by lightning. The lightning prediction result obtained by analyzing the lightning data can effectively prevent other natural disasters closely related to lightning, such as rainstorm, tornado and the like. The prediction information of lightning is shared to important lightning protection departments, such as national departments of electric power, forestry and the like, so that the prediction of lightning can reduce the economic loss caused by the lightning, can be used as clean energy, can produce nitrogen fertilizer in the lightning generation process, and can bring huge benefits to agricultural production. As the lightning data collection can bring great benefits, the method has great significance in military and life of people, and lightning monitoring networks are established in many countries and regions for lightning protection at present.
However, the lightning generating time is short, the requirement on the acquisition speed is high, and the system has high requirements on storage space and data transmission when running in the field for a long time. More importantly, the lightning position needs to be calculated according to data measured by a plurality of stations, so that the multi-station time synchronization is ensured, and the accuracy is in the ten nanosecond level. Therefore, how to measure the lightning electromagnetic field, highly integrate and miniaturize the measuring equipment, and reduce the system cost is an urgent problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem mentioned in the background art, the utility model provides a lightning positioner.
In order to realize the technical purpose, the utility model discloses a technical scheme does:
a lightning positioning device comprises a microprocessor, a power supply module, a GPS module, an electromagnetic field sensor, a thunder sensor, a receiving circuit, a first AD conversion module and a second AD conversion module; the power supply module and the GPS module are respectively electrically connected with the microprocessor; the electromagnetic field sensor is provided with 4 antennas, wherein two antennas are orthogonal in the north-south direction, the other two antennas are orthogonal in the east-west direction, the receiving circuit comprises 4-channel signal conditioning circuits, the 4-channel signal conditioning circuits are in one-to-one correspondence with the 4 antennas, the input end of the signal conditioning circuit of each channel is electrically connected with the corresponding antenna, the output end of the signal conditioning circuit of each channel is electrically connected with the input end of the first AD conversion module, and the output end of the first AD conversion module is electrically connected with the microprocessor; the thunder sensor is electrically connected with the input end of the second AD conversion module, and the output end of the second AD conversion module is electrically connected with the microprocessor.
Based on above-mentioned technical scheme's preferred scheme, signal conditioning circuit includes amplitude limiting circuit, difference amplifier circuit and filter circuit, amplitude limiting circuit's input and the antenna electric connection that corresponds, amplitude limiting circuit's output and difference amplifier circuit's input electric connection, difference amplifier circuit's output and filter circuit's input electric connection, filter circuit's output and first AD conversion module's input electric connection.
Based on above-mentioned technical scheme's preferred scheme, lightning positioner still includes the communication module with microprocessor electric connection, and microprocessor passes through communication module and upper computer communication.
Based on the preferable scheme of the above technical solution, the communication module includes a wireless communication unit and a wired communication unit.
Based on the preferable scheme of the technical scheme, the lightning positioning device further comprises an insulating shell, and the microprocessor, the power supply module, the GPS module, the thunder sensor, the receiving circuit, the first AD conversion module and the second AD conversion module are arranged in the insulating shell; the 4 antennas are arranged on the outer wall of the insulating shell and extend into the insulating shell to be electrically connected with the corresponding signal conditioning circuit; the communication module is arranged on the inner wall of the upper surface of the insulating shell.
Adopt the beneficial effect that above-mentioned technical scheme brought:
the utility model discloses a microprocessor carries out data acquisition and handles, compares in current thunder and lightning positioning system based on the computer, has advantages such as integrate, light and easily carry. The utility model discloses utilize the PPS second pulse function of GPS module, realize the accurate timing of microsecond rank to improve positioning accuracy.
Drawings
FIG. 1 is a view showing the structure of the apparatus of the present invention;
FIG. 2 is a schematic illustration of a magnetic direction method;
fig. 3 is a circuit diagram of the middle limiter of the present invention;
FIG. 4 is a circuit diagram of the middle differential amplifier of the present invention;
fig. 5 is a circuit diagram of the middle filter of the present invention;
fig. 6 is a schematic view of the middle insulation housing of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.
The utility model discloses a lightning positioner, as shown in FIG. 1, including microprocessor, power module, GPS module, electromagnetic field sensor, thunder sensor, receiving circuit, first AD conversion module and second AD conversion module. The power module and the GPS module are respectively electrically connected with the microprocessor. The electromagnetic field sensor is 4 antennas, wherein two antennas are orthogonal in the north-south direction, the other two antennas are orthogonal in the east-west direction, the receiving circuit comprises 4-channel signal conditioning circuits, the 4-channel signal conditioning circuits are in one-to-one correspondence with the 4 antennas, the input end of each channel signal conditioning circuit is electrically connected with the corresponding antenna, the output end of each channel signal conditioning circuit is electrically connected with the input end of the first AD conversion module, and the output end of the first AD conversion module is electrically connected with the microprocessor. The thunder sensor is electrically connected with the input end of the second AD conversion module, and the output end of the second AD conversion module is electrically connected with the microprocessor.
The lightning location means that in order to find out the place where the lightning occurs, the electromagnetic field intensity and the sound when the lightning occurs are used for analyzing various parameters of the lightning, so that the back strike point is located. The lightning location technology is commonly used at present to estimate the lightning return point by parameters such as time information and waveform intensity of the electromagnetic wave generated by the electromagnetic wave. The magnetic direction method is to process the intensity of the magnetic field received by the antenna so as to calculate the direction angle when the lightning occurs, and the strike-back position of the lightning can be calculated according to the direction angle. The antenna is composed of loop coils which are orthogonal to the north-south direction and the east-west direction, the intensity of electromagnetic waves generated when the coils in the north-south direction and the east-west direction of the antenna receive lightning is different, and the azimuth angle can be calculated according to the ratio of the intensity of the electromagnetic waves. The direction-finding principle is shown in fig. 2. And then the distance between the lightning occurrence position and the positioning device can be calculated through the thunder signal and the sound velocity value acquired by the thunder sensor.
In this embodiment, preferably, as shown in fig. 1, the signal conditioning circuit includes a limiter circuit, a differential amplifier circuit, and a filter circuit, which are connected in sequence. The clipping circuit is shown in fig. 3. The differential amplifier circuit is shown in fig. 4. The filter circuit is shown in fig. 5.
In this embodiment, preferably, as shown in fig. 1, the lightning positioning device further includes a communication module electrically connected to the microprocessor, the microprocessor uploads the data collected by the device to the upper computer through the communication module, and the upper computer calculates the lightning positioning result according to the collected data. Further, the communication module includes a wireless communication unit and a wired communication unit.
In this embodiment, it is preferable that the lightning location device further includes an insulating case 8, and the microprocessor 2, the power supply module 3, the GPS module 4, the thunder sensor 5 (including the AD conversion module), and the receiving circuit (including the AD conversion module) are disposed inside the insulating case 8, as shown in fig. 6. The 4 antennas 6 are arranged on the outer wall of the insulating shell 8 and extend into the insulating shell 8 to be electrically connected with the corresponding signal conditioning circuit 7. The communication module 1 is disposed on an inner wall of an upper surface of the insulating housing 8.
It should be noted that the above-mentioned magnetic direction method and the technology of using the thunder sensor to realize lightning location belong to the technologies known in the art. The innovation of the present invention is to design the hardware device with advantages, and the algorithm involved in the device is not substantially improved.
The embodiment is only for explaining the technical thought of the utility model, can not limit with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope.
Claims (5)
1. A lightning locating device, characterized by: the device comprises a microprocessor, a power supply module, a GPS module, an electromagnetic field sensor, a thunder sensor, a receiving circuit, a first AD conversion module and a second AD conversion module; the power supply module and the GPS module are respectively electrically connected with the microprocessor; the electromagnetic field sensor is provided with 4 antennas, wherein two antennas are orthogonal in the north-south direction, the other two antennas are orthogonal in the east-west direction, the receiving circuit comprises 4-channel signal conditioning circuits, the 4-channel signal conditioning circuits are in one-to-one correspondence with the 4 antennas, the input end of the signal conditioning circuit of each channel is electrically connected with the corresponding antenna, the output end of the signal conditioning circuit of each channel is electrically connected with the input end of the first AD conversion module, and the output end of the first AD conversion module is electrically connected with the microprocessor; the thunder sensor is electrically connected with the input end of the second AD conversion module, and the output end of the second AD conversion module is electrically connected with the microprocessor.
2. A lightning location device according to claim 1, characterised in that: the signal conditioning circuit comprises an amplitude limiting circuit, a differential amplifying circuit and a filter circuit, wherein the input end of the amplitude limiting circuit is electrically connected with the corresponding antenna, the output end of the amplitude limiting circuit is electrically connected with the input end of the differential amplifying circuit, the output end of the differential amplifying circuit is electrically connected with the input end of the filter circuit, and the output end of the filter circuit is electrically connected with the input end of the first AD conversion module.
3. A lightning location device according to claim 1, characterised in that: the lightning positioner still includes the communication module with microprocessor electric connection, and microprocessor passes through communication module and upper computer communication.
4. A lightning location device according to claim 3, characterised in that: the communication module includes a wireless communication unit and a wired communication unit.
5. A lightning location device according to claim 3, characterised in that: the lightning positioning device also comprises an insulating shell, and the microprocessor, the power supply module, the GPS module, the thunder sensor, the receiving circuit, the first AD conversion module and the second AD conversion module are arranged in the insulating shell; the 4 antennas are arranged on the outer wall of the insulating shell and extend into the insulating shell to be electrically connected with the corresponding signal conditioning circuit; the communication module is arranged on the inner wall of the upper surface of the insulating shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120558731.3U CN215066967U (en) | 2021-03-18 | 2021-03-18 | Lightning positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120558731.3U CN215066967U (en) | 2021-03-18 | 2021-03-18 | Lightning positioner |
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| Publication Number | Publication Date |
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| CN215066967U true CN215066967U (en) | 2021-12-07 |
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| CN202120558731.3U Active CN215066967U (en) | 2021-03-18 | 2021-03-18 | Lightning positioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117890846A (en) * | 2024-03-13 | 2024-04-16 | 南京信息工程大学 | Signal simulator for lightning data acquisition |
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2021
- 2021-03-18 CN CN202120558731.3U patent/CN215066967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117890846A (en) * | 2024-03-13 | 2024-04-16 | 南京信息工程大学 | Signal simulator for lightning data acquisition |
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