CN217689149U

CN217689149U - Lightning stroke monitoring circuit of lightning protection equipment and lightning protection equipment

Info

Publication number: CN217689149U
Application number: CN202123341855.5U
Authority: CN
Inventors: 何青; 郑传啸
Original assignee: SHENZHEN RUILONGYUAN ELECTRONICS CO Ltd; Changsha University of Science and Technology
Current assignee: SHENZHEN RUILONGYUAN ELECTRONICS CO Ltd; Changsha University of Science and Technology
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-10-28
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a lightning stroke monitoring circuit of lightning protection equipment and the lightning protection equipment, the lightning stroke monitoring circuit of the lightning protection equipment comprises a lightning protection plate, a power circuit, a logic circuit, a voltage circuit and a singlechip; the output end of the lightning protection plate is connected with the input ends of the power circuit and the voltage circuit respectively, the output end of the power circuit is connected with the logic circuit and one end of the single chip microcomputer respectively, the logic circuit is connected with the single chip microcomputer, and the output end of the voltage circuit is connected with one end of the single chip microcomputer. The utility model discloses technical scheme optimizes through the circuit to traditional lightning protection equipment, carries out logic circuit's interpolation on original basis, makes it possess the function that traditional lightning protection equipment did not to all realize all functions through the singlechip, make lightning protection equipment internal circuit's deployment simpler, made things convenient for maintenance personal to lightning protection equipment's follow-up maintenance work.

Description

Lightning stroke monitoring circuit of lightning protection equipment and lightning protection equipment

Technical Field

The utility model relates to a lightning protection equipment field, in particular to lightning protection equipment's thunderbolt monitoring circuit and lightning protection equipment.

Background

With the development of the scientific and technological level, various lightning protection devices are developed endlessly, and the existing lightning protection devices on the market at present are divided into the lightning protection devices with mechanical structures and the lightning protection devices with operation state indication functions, but the lightning protection devices have incomplete functions caused by unreasonable circuit design regardless of the mechanical structures or the operation state indication functions, for example, after lightning strike occurs, the lightning protection devices do not have self-recovery performance, and need to be maintained on site by maintenance personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lightning strike monitoring circuit and lightning protection equipment of lightning protection equipment, the unreasonable function that leads to of circuit design that aims at solving current lightning protection equipment is incomplete to make the slow problem of maintenance progress of lightning protection equipment behind the thunderbolt.

In order to achieve the above object, the present invention provides a lightning strike monitoring circuit of a lightning protection device, which comprises a lightning protection plate, a power circuit, a logic circuit, a voltage circuit and a single chip;

the output end of the lightning protection plate is respectively connected with the input ends of the power circuit and the voltage circuit, the output end of the power circuit is respectively connected with the logic circuit and one end of the single chip microcomputer, the logic circuit is connected with the single chip microcomputer, and the output end of the voltage circuit is connected with one end of the single chip microcomputer;

the lightning protection plate is used for generating an isolated DC first preset power supply and a non-isolated first preset power supply to supply power to the power circuit and the voltage circuit respectively;

the power circuit is used for converting a received isolated DC first preset power supply into a second preset power supply so as to supply power to the logic circuit and the single chip microcomputer;

the logic circuit is used for carrying out data interaction with the single chip microcomputer;

the voltage circuit comprises an alternating current voltage acquisition chip, and is used for supplying power to the alternating current voltage acquisition chip by the received non-isolated first preset power supply, activating the alternating current voltage acquisition chip to acquire voltage and indirectly realizing the conversion from current to voltage;

and the singlechip is used for processing and forwarding the data of the logic circuit so as to realize the corresponding function of the logic circuit.

Optionally, the logic circuit includes an SD card processing circuit, an environment monitoring processing circuit, a clock processing circuit, an LCD display circuit, a buzzer alarm circuit, and a counter circuit.

Optionally, the SD card processing circuit includes a read/write chip;

the read-write chip is used for reading and writing first data of the SD card associated with the SD card processing circuit;

the read-write chip is connected with the 2 serial ports of the single chip microcomputer.

Optionally, the environment monitoring processing circuit includes a temperature and humidity sensor;

the temperature and humidity sensor is used for reading second data of environment monitoring in real time;

the temperature and humidity sensor is connected with the input end of the IO port of the single chip microcomputer and sends second data of the environment monitoring to the single chip microcomputer.

Optionally, the clock processing circuit includes a real-time clock chip;

and the I2C interface of the real-time clock chip is in communication connection with the virtual interface of the singlechip in the I2C bus simulation mode.

Optionally, the LCD display circuit comprises an LCD chip;

the LCD chip is connected with the 8080 bus mode corresponding pin in the singlechip, and display interface communication between the LCD chip and the lightning protection equipment is established.

Optionally, the buzzer alarm circuit comprises a switching triode;

the base electrode of the switching triode is connected with the output end of the IO port of the single chip microcomputer, and the collector electrode of the switching triode is connected with the buzzer in series.

Optionally, the output end of the counting circuit is connected with the serial port of the singlechip 3;

the counting circuit is used for converting the voltage obtained through the lightning protection plate into an amplified pulse signal and sending the amplified pulse signal to the single chip microcomputer for pulse counting and processing.

Optionally, the voltage circuit comprises a photo-electrically isolated chip;

the input end of the photoelectric isolation chip is connected with the output end of the alternating voltage acquisition chip in series, and the output end of the photoelectric isolation chip is connected with one end of the single chip microcomputer.

The embodiment also provides lightning protection equipment, wherein the lightning protection equipment comprises the lightning stroke monitoring circuit of the lightning protection equipment, which comprises a lightning protection plate, a power supply circuit, a logic circuit, a voltage circuit and a singlechip;

the logic circuit is used for carrying out data interaction with the singlechip;

the voltage circuit comprises an alternating current voltage acquisition chip, and is used for supplying power to the alternating current voltage acquisition chip by the received non-isolated first preset power supply, activating the alternating current voltage acquisition chip to acquire voltage and indirectly converting current into voltage;

The technical proposal of the utility model is that the lightning stroke monitoring circuit of the lightning protection device is modified to comprise a lightning protection plate, a power circuit, a logic circuit, a voltage circuit and a singlechip; the power circuit receives a first preset isolated DC power supply of the lightning protection plate, converts the first preset isolated DC power supply into a second preset power supply to supply power to the logic circuit and the single chip microcomputer, and is grounded at the other end, so that absorbed lightning can be fed back to the ground, and damage of the lightning to an internal circuit of the lightning protection device is avoided; the logic circuit is the integration of various functional circuits, and can make the lightning protection equipment have complete functions. And in prior art, because the circuit design of lightning protection equipment is unreasonable, the unable fine integration of various functional circuit, make the function of current lightning protection equipment not complete, and then make the lightning protection equipment maintenance work progress after the lightning stroke incident takes place slow, and this scheme passes through the singlechip, the integration of various functional circuit in the logic circuit has been realized, make the deployment that functional circuit can be fine in the internal circuit of lightning protection equipment, and deploy simply, small, the rationality of the internal function logic circuit design of lightning protection equipment has been realized, make lightning protection equipment possess the function that is favorable to accelerating the maintenance progress.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a lightning strike monitoring circuit of the lightning protection device of the present invention;

fig. 2 is a schematic diagram of the connection between the logic circuit and the single chip microcomputer according to the present invention;

FIG. 3 is a schematic structural diagram of the read/write chip of the present invention;

fig. 4 is a schematic structural view of the temperature and humidity sensor of the present invention;

fig. 5 is a schematic structural diagram of the real-time clock chip of the present invention;

fig. 6 is a schematic structural diagram of the counting circuit of the present invention;

fig. 7 is a schematic structural diagram of the novel voltage circuit of the experiment.

The reference numbers illustrate:

the realization, the functional characteristics and the feasible points of the utility model are further explained by referring to the attached drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a lightning strike monitoring circuit of lightning protection equipment.

In an embodiment of the present invention, as shown in fig. 1, the lightning strike monitoring circuit of the lightning protection device includes a lightning protection plate 10, a power circuit 20, a logic circuit 30, a voltage circuit 40 and a single chip 50;

the output end of the lightning protection plate 10 is connected to the input ends of the power circuit 20 and the voltage circuit 40, the output end of the power circuit 20 is connected to the logic circuit 30 and one end of the single chip microcomputer 50, the logic circuit 30 is connected to the single chip microcomputer 50, and the output end of the voltage circuit 30 is connected to one end of the single chip microcomputer 50;

the lightning protection plate 10 is configured to generate an isolated DC first preset power and a non-isolated first preset power to supply power to the power circuit 20 and the voltage circuit 40, respectively, where the lightning protection plate 10 is divided into an isolated 5V power circuit (i.e., an isolated DC first preset power) and a voltage acquisition non-isolated 5V power circuit (i.e., a non-isolated first preset power), the power circuit implements output of a 5V power through an isolated AC (Alternating Current)/DC (Direct Current) module, because the lightning protection device is a public device, the isolated DC5V power (i.e., an isolated DC first preset power) is output to the power circuit 20, the voltage circuit 40 implements output of a 5V power through an MP150 non-isolated AC/DC chip inside the circuit, and the 5V power output by the voltage circuit is used for displaying three-phase voltages on a display interface of the lightning protection device;

the power circuit 20 is configured to convert a received isolated DC first preset power into a second preset power to supply power to the logic circuit 30 and the single chip microcomputer 50, and the power circuit 20 can convert an isolated DC5V power (i.e., an isolated DC first preset power) generated by the lightning protection board into a 3.3V power through an internal LM1117MPX-3.3 chip, i.e., a low dropout regulator, where the low dropout regulator needs to be grounded and can reduce a passing current, so that when the lightning protection device is struck by lightning, the internal circuit of the lightning protection device can be protected, the internal circuit is prevented from being damaged, and the maintenance workload of maintenance personnel is increased;

the logic circuit 30 is used for data interaction with the single chip microcomputer 50, the logic circuit 30 is the new logic circuit, and is used for perfecting the functional logic circuit of the lightning protection device, and each functional logic circuit of the logic circuit 30 carries out data interaction through the single chip microcomputer 50, so that the logic circuit 30 is simpler and more convenient to deploy, and the maintenance work of maintenance personnel is easier to carry out;

the voltage circuit 40 comprises an alternating current voltage acquisition chip, and the voltage circuit 40 is used for supplying power to the HLW8032, namely the alternating current voltage acquisition chip, from the received non-isolated first preset power supply, so that the alternating current voltage acquisition chip can output the acquired voltage value to the EL357 photoelectric isolation chip through a serial output port, and further the current output by the EL357 can be directly connected to the single chip microcomputer 50 for data receiving and processing;

the single chip microcomputer 50 is an STC15W4K32S4 single chip microcomputer 50, and is configured to process and forward data of the logic circuit 30, so as to implement a function corresponding to the logic circuit 30.

Specifically, referring to fig. 2, the logic circuit 30 includes an SD card processing circuit 60, an environment monitoring processing circuit 70, a clock processing circuit 80, an LCD display circuit 90, a buzzer alarm circuit 100, and a counter circuit 110.

Specifically, referring to fig. 3, the SD card processing circuit 60 includes a read-write chip;

the read-write chip is used for reading and writing first data of the SD card related to the SD card processing circuit, the type of the read-write chip is CH376, and the single chip microcomputer 50 can read and write the first data of the external SD card based on the read-write chip, wherein the first data refers to the time of lightning stroke and the like;

the 4 pins and the 5 pins of the read-write chip are connected with the 2 serial ports of the single chip microcomputer 50, so that the single chip microcomputer 50 can receive and process the first data read by the SD card processing circuit 60 through the 2 serial ports.

Specifically, referring to fig. 4, the environment monitoring processing circuit 70 includes a temperature and humidity sensor;

the temperature and humidity sensor is used for reading second data of environment monitoring in real time, is AM2301-DHT21, is a temperature and humidity coincidence sensor containing calibration digital signal output, is arranged in an internal circuit of lightning protection equipment, and can monitor the temperature and humidity of the environment in real time, so that whether the current weather is abnormal or not is judged, and an early warning effect is achieved;

the temperature and humidity sensor is connected with an input end of an IO port of the single chip microcomputer 50 and sends second data of environment monitoring to the single chip microcomputer 50, wherein the second data of the environment monitoring comprises but is not limited to temperature, humidity and rainfall.

Specifically, referring to fig. 5, the clock processing circuit 80 includes a real-time clock chip;

the model of real-time clock chip is R8025AC, the interface is the I2C interface, but the utility model discloses well used singlechip 50 does not have the interface that corresponds with the I2C interface, consequently singlechip 50's system can only call the entity interface and go simulation I2C bus mode, thereby establish virtual I2C interface and communicate with the real-time clock chip, make singlechip 50 can realize clock processing circuit 80's reading and writing according to the chronogenesis of real-time clock chip, make singlechip 50 can be according to the data of reading and writing carry out the adjustment of lightning protection equipment inner circuit outside, can also when monitoring abnormal voltage, play the function of circuit interruption etc. to lightning protection equipment, and then make lightning protection equipment's security higher.

Specifically, referring to fig. 2, the LCD display circuit 90 includes an LCD chip;

the LCD chip is connected to the 8080 bus mode corresponding pin of the single chip microcomputer, so as to communicate with the display interface of the lightning protection device, and as shown in fig. 2, the LCD chip in the LCD display circuit 90 communicates with the single chip microcomputer 50, so that the single chip microcomputer 50 can complete the display of the data of the display interface of the lightning protection device by receiving the relevant data of the LCD chip.

Meanwhile, the buzzer alarm circuit 100 comprises a switch triode and a buzzer;

the base of switch triode with the output of singlechip 50's IO mouth links to each other, the collecting electrode of switch triode with bee calling organ establishes ties, specifically, R1 is located between switch triode's base and the IO mouth, play the protection IO mouth, avoid voltage too big to lead to buzzing warning circuit to be burnt, R2 is a pin of singlechip 50, a current for increasing singlechip 50 output to bee calling organ, play the effect of amplified current, R3 is located before switch triode and bee calling organ, play the effect of protection bee calling organ, the switch triode plays the effect of a switch in buzzing warning circuit, when monitoring unusual humiture promptly, the high level of switch triode base can make the triode saturation switch on, make bee calling organ send the chimes of doom, when the humiture is at normal value, the low level of switch triode base can make the triode close, make bee calling organ static, play the early warning effect to lightning protection equipment.

Specifically, referring to fig. 6, an output end of the counting circuit 110 is connected to a serial port of the single chip microcomputer 3;

the counting circuit 110 is used for driving the EL357 to generate pulse signals by obtaining voltage through the lightning protection plate 10, the generated pulse signals enter the ICM7555 chip and then output amplified pulse signals, the amplified pulse signals are sent to the single chip microcomputer 50 through the 3 pins of the ICM7555 chip to be subjected to pulse counting and processing, and the counting circuit 110 is combined with the SD card processing circuit 60, so that maintenance personnel can know the lightning stroke condition of the lightning protection device each time more comprehensively and more clearly, and the maintenance personnel can conveniently inquire all lightning stroke history records.

Specifically, referring to fig. 7, the voltage circuit 40 includes a photo-isolation chip;

the model of optoelectronic isolation chip is EL357, optoelectronic isolation chip is equivalent to LED and photosensitive tube encapsulation together, optoelectronic isolation chip's input with alternating voltage gathers the output of chip and establishes ties, make optoelectronic isolation chip's emitting diode can receive the voltage that alternating voltage gathered the chip and gather, make emitting diode can send the light of certain wavelength, photosensitive detection sends the wavelength that emitting diode sent and produces the electric current, because optoelectronic isolation chip's output is connected with the one end of singlechip 50, so output to the singlechip 50 after the electric current amplification that produces, make singlechip 50 can handle the electric current, and then show current three-phase voltage on lightning protection equipment's display interface, make maintenance personal can the audio-visual observation lightning protection equipment whether be under-voltage, excessive pressure or default phase at present, need not to pass through loaded down with trivial details detection procedure, can direct acquisition current lightning protection equipment's running state, maintenance personal's time and energy have been saved.

The embodiment also provides a lightning protection device, which includes the lightning strike monitoring circuit of the lightning protection device, where the lightning strike monitoring circuit of the lightning protection device includes a lightning protection plate 10, a power circuit 20, a logic circuit 30, a voltage circuit 40, and a single chip 50;

the output end of the lightning protection plate 10 is respectively connected with the input ends of the power circuit 20 and the voltage circuit 40, the output end of the power circuit 20 is respectively connected with the logic circuit 30 and one end of the single chip microcomputer 50, the logic circuit 30 is connected with the single chip microcomputer 50, and the output end of the voltage circuit 40 is connected with one end of the single chip microcomputer 50;

the lightning protection plate 10 is configured to generate an isolated DC first preset power supply and a non-isolated first preset power supply to supply power to the power circuit 20 and the voltage circuit 40, respectively;

the power circuit 20 is configured to convert a received isolated DC first preset power into a second preset power to supply power to the logic circuit 30 and the single chip 50;

the logic circuit 30 is used for data interaction with the single chip microcomputer;

the voltage circuit 40 comprises an alternating current voltage acquisition chip, and the voltage circuit 40 is used for supplying power to the alternating current voltage acquisition chip by the received non-isolated first preset power supply, activating the alternating current voltage acquisition chip to acquire voltage and indirectly realizing the conversion from current to voltage;

the single chip microcomputer 50 is configured to process and forward data of the logic circuit, so as to implement a function corresponding to the logic circuit 30.

The specific structure of the lightning protection device refers to the above-mentioned embodiment, and since the lightning protection device adopts all technical solutions of the embodiment of the lightning strike monitoring circuit of the lightning protection device, all beneficial effects brought by the technical solutions of the above-mentioned embodiment are at least achieved, and are not repeated here.

The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A lightning stroke monitoring circuit of lightning protection equipment is characterized by comprising a lightning protection plate, a power supply circuit, a logic circuit, a voltage circuit and a singlechip;

2. The lightning strike monitoring circuit of the lightning protection device of claim 1, wherein the logic circuit includes an SD card processing circuit, an environmental monitoring processing circuit, a clock processing circuit, an LCD display circuit, a beeping alarm circuit, and a counting circuit.

3. The lightning strike monitoring circuit of the lightning protection device of claim 2, wherein the SD card processing circuit includes a read-write chip;

4. The lightning strike monitoring circuit of the lightning protection device of claim 2, wherein the environmental monitoring processing circuit includes a temperature and humidity sensor;

the temperature and humidity sensor is used for reading second data of environmental monitoring in real time;

the temperature and humidity sensor is connected with the input end of the IO port of the single chip microcomputer, and sends the second data of the environmental monitoring to the single chip microcomputer.

5. The lightning strike monitoring circuit of a lightning protection device of claim 2, wherein the clock processing circuit includes a real-time clock chip;

6. The lightning strike monitoring circuit of a lightning protection device of claim 2, wherein the LCD display circuit includes an LCD chip;

the LCD chip is connected with a 8080 bus mode corresponding pin in the singlechip, and display interface communication between the LCD chip and the lightning protection equipment is established.

7. The lightning strike monitoring circuit of the lightning protection device of claim 2, wherein the buzzer warning circuit includes a switching transistor and a buzzer;

8. The lightning strike monitoring circuit of the lightning protection device according to claim 2, wherein the output end of the counting circuit is connected with a serial port of the singlechip 3;

9. The lightning strike monitoring circuit of the lightning protection device of claim 1, wherein the voltage circuit includes a photo-isolation chip;

10. A lightning protection device, characterized in that the lightning protection device comprises a lightning strike monitoring circuit of the lightning protection device according to any one of claims 1 to 9.