CN213750105U - Real-time thunder and lightning early warning device - Google Patents
Real-time thunder and lightning early warning device Download PDFInfo
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- CN213750105U CN213750105U CN202022445324.XU CN202022445324U CN213750105U CN 213750105 U CN213750105 U CN 213750105U CN 202022445324 U CN202022445324 U CN 202022445324U CN 213750105 U CN213750105 U CN 213750105U
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Abstract
The utility model discloses a real-time thunder early warning device, which comprises an atmospheric electric field instrument, a singlechip and an alarm module which are sequentially connected in a communication manner; the atmosphere electric field instrument comprises an electric field sensor and a signal processing unit, the electric field sensor senses the electric field intensity in the atmosphere to form an electric signal and transmits the electric signal to the signal processing unit, and the signal processing unit processes the electric signal, converts the electric signal into a data signal and transmits the data signal to the singlechip; the single chip microcomputer analyzes and processes the data signals, compares the data signals with a preset alarm limit value, and drives the alarm module to alarm according to a comparison result. The utility model discloses it is direct right to utilize the singlechip the data signal that atmospheric electric field appearance gathered and transmitted carries out the analysis and compares, is by singlechip direct drive according to the comparison result alarm module reports to the police, need not pass control center with data long-range back can direct early warning, has strengthened the independent working ability of atmospheric electric field appearance, simple and direct high-efficient.
Description
Technical Field
The utility model relates to a thunder and lightning early warning technical field, concretely relates to real-time thunder and lightning early warning device.
Background
Thunder is a discharge phenomenon in the atmosphere, is mostly formed in rain clouds, the rain clouds can move continuously along with the change of temperature and air flow, and triboelectricity is generated in the movement, so that cloud layers with charges are formed, if the electric charge amount becomes strong enough, namely the electric field intensity of the ground and the cloud layers becomes large enough, air can be punctured to discharge, strong flash and explosion sound can occur at the discharge place, so that the lightning stroke is realized, and the monitoring of the electric field intensity of the thundercloud and the ground can early warn the impending thunder.
The lightning early warning plays an important role in avoiding the damage of lightning to human bodies and property. The existing lightning early warning scheme is that a ground atmospheric electric field is measured through an atmospheric electric field instrument, then measurement data are transmitted back to a central data processing center, the measurement data are processed by a microcomputer, and then lightning early warning signals are issued according to conditions. The early warning method cannot analyze the data collected by the atmospheric electric field instrument on site in real time, the data signal must be transmitted back to the central data processing center, the data signal has hysteresis, and the data signal is easily interfered in the transmission process, so that the accuracy of early warning is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a real-time thunder and lightning early warning device.
The utility model adopts the technical scheme as follows: the utility model discloses a real-time thunder early warning device, which comprises an atmospheric electric field instrument, a singlechip and an alarm module which are sequentially connected in a communication manner; the atmosphere electric field instrument comprises an electric field sensor and a signal processing unit, wherein the electric field sensor is used for sensing the electric field intensity in the atmosphere to form an electric signal and transmitting the electric signal to the signal processing unit; the signal processing unit is used for processing the electric signals, converting the electric signals into data signals and transmitting the data signals to the single chip microcomputer; the single chip microcomputer is used for analyzing and processing the data signals, comparing the data signals with a preset alarm limit value, and driving the alarm module to alarm according to the comparison result.
The utility model has the advantages that: the utility model discloses it is direct right to utilize the singlechip the data signal that atmospheric electric field appearance gathered and transmitted carries out the analysis and compares, is by singlechip direct drive according to the comparison result alarm module reports to the police, need not pass control center with data long-range back can direct early warning, has strengthened the independent working ability of atmospheric electric field appearance, simple and direct high-efficient.
Preferably: the single chip microcomputer is an ARM 32-bit Cortex-M4 kernel single chip microcomputer.
Preferably: the alarm module comprises a driving device and an alarm device, the driving device comprises a power supply, a relay and a power amplifier which are sequentially connected, the relay is connected with the single chip microcomputer, the power amplifier is connected with the alarm device, and the single chip microcomputer controls the on-off of the relay according to the comparison result.
Preferably: the system also comprises a local data terminal and a remote data center, wherein the local data terminal is used for temporarily storing local short-term data, and the remote data center is used for summarizing and storing the data; and the local data terminal and the remote data center are in communication connection with the singlechip.
Preferably: the local data terminal is connected with the singlechip through an RS-485 communication network; the remote data center is connected with the single chip microcomputer through a wireless network.
Preferably: the power supply is 12V.
Preferably: the alarm device comprises a loudspeaker and/or a warning lamp.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an algorithm diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
In the examples, as shown in fig. 1 and 2: the utility model discloses a real-time thunder early warning device, which comprises an atmospheric electric field instrument, a singlechip and an alarm module which are sequentially connected in a communication manner; the atmosphere electric field instrument comprises an electric field sensor and a signal processing unit, the electric field sensor senses the electric field intensity in the atmosphere to form an electric signal and transmits the electric signal to the signal processing unit, and the signal processing unit processes the electric signal, converts the electric signal into a data signal and transmits the data signal to the singlechip; the single chip microcomputer analyzes and processes the data signals, compares the data signals with a preset alarm limit value, and drives the alarm module to alarm according to a comparison result. The utility model discloses it is direct right to utilize the singlechip the data signal that atmospheric electric field appearance gathered and transmitted carries out the analysis and compares, is by singlechip direct drive according to the comparison result alarm module reports to the police, need not pass control center with data long-range back can direct early warning, has strengthened the independent working ability of atmospheric electric field appearance, simple and direct high-efficient.
In the embodiment, the electric field sensor is designed according to the principle that a conductor induces charges in an electric field, and the grounding metal sheet driven by a motor to rotate periodically shields the atmospheric electric field to form a stable alternating electric signal and transmit the signal to the signal processing unit. The signal processing unit is a key component of the atmospheric electric field instrument, and consists of an IV conversion circuit, a filter circuit, a phase-sensitive detection circuit, an A/D conversion circuit, a central processing unit, a GPS module, a data storage, a control circuit, an interface and the like, and has the main function of processing the electric signal output by the electric field sensor, converting the electric signal into a data signal and transmitting the data signal to the single chip microcomputer, so that the single chip microcomputer can conveniently process the electric signal. In the embodiment, a lightning early warning algorithm is integrated in the single chip microcomputer. Due to the fact that the performance of the single chip microcomputer is improved, the operation speed is greatly improved, the internal storage capacity is greatly increased, the thunder and lightning early warning algorithm can be integrated in the single chip microcomputer, the thunder and lightning early warning algorithm is directly operated by the single chip microcomputer, thunder and lightning early warning alarms are directly issued, and the thunder and lightning early warning is more timely and effective. In the embodiment, specifically, an ARM32 Cortex-M4 inner core single chip microcomputer which has a large program storage and operation space and can realize a high operation speed can be adopted, and particularly, the single chip microcomputer is provided with a DSP unit and an FPU unit and has a strong data processing capacity, so that a lightning early warning algorithm can be completed, the on-site processing of data collected and transmitted by an atmospheric electric field instrument is realized, and the lightning early warning is timely made.
In an embodiment, as shown in fig. 1, the alarm module includes a driving device and an alarm device, the driving device includes a power supply, a relay and a power amplifier, which are connected in sequence, the relay is connected with a single chip microcomputer, the power amplifier is connected with the alarm device, and the single chip microcomputer controls the on-off of the relay according to the comparison result, so as to control the power supply to supply power to the power amplifier and the alarm device. In the embodiment, the power supply is generally a 12V battery; the alarm device can be a loudspeaker or a warning lamp, and the loudspeaker and the warning lamp can be combined for use in order to further improve the warning effect.
In the embodiment, as shown in fig. 1, the real-time lightning early warning device further comprises a local data terminal and a remote data center, wherein the local data terminal is connected with the single chip microcomputer through an RS-485 communication network and used for temporary storage of local short-term data, and the RS-485 communication network system is stable and reliable in operation, high in communication rate and good in communication effect; the remote data center is connected with the single chip microcomputer through a wireless network and used for collecting and storing data, and the remote data center is convenient, simple and convenient and facilitates analysis and query of later-stage data.
In an embodiment, as shown in fig. 2, the lightning early warning algorithm is specifically as follows:
step 1, collecting electric field intensity data of the atmosphere electric field instrument every second, averaging absolute values of electric field values in the previous minute after updating every second, and recording as E0And comparing the electric field intensity with a preset electric field intensity alarm limit value.
Step 2, calculating E of two adjacent seconds0If the absolute value of the difference is greater than the current E0The 20 percent of the total amount is counted as one-time jitter, and the jitter frequency D of one minute is counted0And the judgment basis is used for comparing with a preset jitter frequency alarm limit value.
And step 3: and (4) alarming and judging:
first order alarm basic condition, one minute electric field mean value E0Greater than limit value 3kv/mJitter frequencyD 0 More than 1 time/min.
Basic condition of secondary alarm, one minute electric field mean valueE 0Greater than a limit value5kv/mJitter frequencyD 0 Greater than 3 times per minute.
And in the three-level alarm basic condition, the one-minute electric field mean value E0 is greater than the limit value of 8kv/m, and the jitter frequency D0 is greater than 5 times/minute.
The specific values of the electric field strength alarm limit value and the jitter frequency alarm limit value can be adjusted according to the actual situation.
And 4, step 4: after the thunder and lightning early warning algorithm finishes warning judgment, the single chip microcomputer sends a switching-on signal to the relay, and a power supply is connected into the warning circuit; meanwhile, a timer is arranged in the single chip microcomputer, PWM waves with different frequencies are output to the power amplifier according to the judgment result in the step 3 and aiming at different alarm levels, and signals are amplified and then transmitted to an alarm device, so that the alarm function in a larger range is realized; when a first-level alarm condition is met, the single chip microcomputer outputs PWM waves with lower frequency to the power amplifier, when a second-level alarm condition is met, the single chip microcomputer outputs PWM waves with medium frequency to the power amplifier, when a third-level alarm condition is met, the single chip microcomputer outputs PWM waves with higher frequency to the power amplifier, the PWM waves are amplified by the power amplifier and then transmitted to the alarm device, and signals are stronger and more accurate; the alarm device gives different alarm prompts according to the received PWM waves with different frequencies, such as alarm sounds or light changes with different frequencies, reminds people of timely giving protection with corresponding degrees, and reduces injury and loss.
It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Obvious changes or variations coming within the spirit of the invention are intended to be covered by the scope of the invention.
Claims (6)
1. Real-time thunder and lightning early warning device, its characterized in that: the device comprises an atmospheric electric field instrument, a singlechip and an alarm module which are sequentially in communication connection; the atmosphere electric field instrument comprises an electric field sensor and a signal processing unit, wherein the electric field sensor is used for sensing the electric field intensity in the atmosphere to form an electric signal and transmitting the electric signal to the signal processing unit; the signal processing unit is used for processing the electric signals, converting the electric signals into data signals and transmitting the data signals to the single chip microcomputer; the single chip microcomputer is used for analyzing and processing the data signals, comparing the data signals with a preset alarm limit value and driving the alarm module to alarm according to a comparison result;
the alarm module comprises a driving device and an alarm device, the driving device comprises a power supply, a relay and a power amplifier which are sequentially connected, the relay is connected with the single chip microcomputer, the power amplifier is connected with the alarm device, and the single chip microcomputer controls the on-off of the relay according to the comparison result.
2. The real-time lightning early warning device of claim 1, characterized by: the single chip microcomputer is an ARM 32-bit Cortex-M4 kernel single chip microcomputer.
3. The real-time lightning early warning device of claim 1, characterized by: the system also comprises a local data terminal and a remote data center, wherein the local data terminal is used for temporarily storing local short-term data, and the remote data center is used for summarizing and storing the data; and the local data terminal and the remote data center are in communication connection with the singlechip.
4. The real-time lightning early warning device of claim 3, characterized by: the local data terminal is connected with the singlechip through an RS-485 communication network; the remote data center is connected with the single chip microcomputer through a wireless network.
5. The real-time lightning early warning device of claim 1, characterized by: the power supply is 12V.
6. The real-time lightning early warning device of claim 1, characterized by: the alarm device comprises a loudspeaker and/or a warning lamp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022445324.XU CN213750105U (en) | 2020-10-29 | 2020-10-29 | Real-time thunder and lightning early warning device |
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| CN202022445324.XU CN213750105U (en) | 2020-10-29 | 2020-10-29 | Real-time thunder and lightning early warning device |
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| CN213750105U true CN213750105U (en) | 2021-07-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755505A (en) * | 2022-05-30 | 2022-07-15 | 上海晨辉科技股份有限公司 | Grinding type atmospheric electric field instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755505A (en) * | 2022-05-30 | 2022-07-15 | 上海晨辉科技股份有限公司 | Grinding type atmospheric electric field instrument |
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