CN204228810U - Thunder-and-lightning counter remote supervision system - Google Patents

Thunder-and-lightning counter remote supervision system Download PDF

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Publication number
CN204228810U
CN204228810U CN201420665355.8U CN201420665355U CN204228810U CN 204228810 U CN204228810 U CN 204228810U CN 201420665355 U CN201420665355 U CN 201420665355U CN 204228810 U CN204228810 U CN 204228810U
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China
Prior art keywords
resistance
connects
lightning
thunder
microprocessor unit
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Expired - Fee Related
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CN201420665355.8U
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Chinese (zh)
Inventor
鲁帆
黄雪韵
赵行
李福健
尹文颖
周健瑶
熊兰
马龙
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Chongqing University
State Grid Corp of China SGCC
NangAn Power Supply Co of State Grid Chongqing Electric Power Co Ltd
Original Assignee
Chongqing University
State Grid Corp of China SGCC
NangAn Power Supply Co of State Grid Chongqing Electric Power Co Ltd
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Priority to CN201420665355.8U priority Critical patent/CN204228810U/en
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Publication of CN204228810U publication Critical patent/CN204228810U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of thunder-and-lightning counter remote supervision system and method, comprising: counter mechanical transmission mechanism, infrared photoelectric sensor, microprocessor unit, communications component, power supply; Described counter mechanical transmission mechanism connects infrared photoelectric sensor, described infrared photoelectric sensor signal output part connects microprocessor unit signal input part, described microprocessor unit signal output part connects communications component, described power supply high-voltage output terminal connects microprocessor unit power input and communications component power input respectively, described power supply low-voltage output end connects infrared photoelectric sensor power input, described microprocessor unit stores the thunder and lightning quantity information received, and thunder and lightning quantity information is sent to monitoring terminal by GSM network.

Description

Thunder-and-lightning counter remote supervision system
Technical field
The utility model relates to electrical engineering field, particularly relates to a kind of thunder-and-lightning counter remote supervision system.
Background technology
Thunderbolt is to the important threat being transmission line of electricity safe and stable operation, and added up by thunderbolt situation to transmission line of electricity has important reference significance to analysis transmission line status.Current most of transmission line of electricity still adopts mechanical counter to carry out counting thunder, and more typical model is JS-8 type.The principle of work of mechanical type thunder-and-lightning counter is when thunderbolt occurs transmission line of electricity, the iron core in lightning current coil magnetizing counter, thus inhales dynamic little magnetic sheet once, and little magnetic sheet by mechanical drive table-drive index counting once.Maintainer needs regularly to go to scene to carry out statistics number of lightning strokes of checking meter usually, because thunder-and-lightning counter is distributed more widely, often be in field, wilderness, and be positioned on shaft tower, checking meter very inconvenient, regularly check meter and need to consume a large amount of manpower and financial resources, in the urgent need to realizing, long-range reliable monitoring being realized to thunder-and-lightning counter, save the human and material resources cost of patrolling and examining, judge the impact of being struck by lightning on circuit and electrical equipment in time.
Utility model content
The utility model is intended at least solve the technical matters existed in prior art, especially innovatively proposes a kind of thunder-and-lightning counter remote supervision system.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of thunder-and-lightning counter remote supervision system, it is characterized in that, comprising: counter mechanical transmission mechanism, infrared light transducer[sensor, microprocessor unit, communications component, power supply;
Described counter mechanical transmission mechanism connects infrared photoelectric sensor, described infrared photoelectric sensor signal output part connects microprocessor unit signal input part, described microprocessor unit signal output part connects communications component, described power supply high-voltage output terminal connects microprocessor unit power input and communications component power input respectively, described power supply low-voltage output end connects infrared photoelectric sensor power input
Described counter mechanical transmission mechanism inside arranges lightning current Acquisition Circuit and gathers thunder and lightning, described lightning current Acquisition Circuit connects iron core winding, magnetic sheet is placed in described iron core winding one end, gather lightning current when being struck by lightning and occurring and magnetize iron core winding, make magnetic sheet and iron core winding inhale and, inner gear train is driven to move, described inner gear train drives counter dial to carry out counting and adds up, described magnetic sheet also connects anti-dazzling screen, described anti-dazzling screen is placed on outside the optocoupler groove of infrared photoelectric sensor, make correlation conducting light paths, when thunderbolt occurs, anti-dazzling screen moves in optocoupler groove, correlation light path is ended, by conducting light paths or cut-off state by circuit transmission to microprocessor unit, described microprocessor unit stores the thunder and lightning quantity information received, thunder and lightning quantity information is sent to monitoring terminal by operators communication network.
The beneficial effect of technique scheme is: achieve electrical isolation between photoelectric sensor and mechanical type thunder-and-lightning counter, ensure that security and the accuracy of whole monitoring system, decreases the impact on mechanical type thunder-and-lightning counter itself simultaneously.Infrared photoelectric sensor reaction velocity is fast, can catch the action each time of mechanical counter, achieve the Real-Time Monitoring to number of lightning strokes.Utilize gsm communication module to send count information, achieve the remote monitoring to number of lightning strokes, the manpower and materials reducing maintenance department drop into, and produce good economic benefits.
Described thunder-and-lightning counter remote supervision system, preferably, described infrared photoelectric sensor comprises: optocoupler and comparator circuit, and described comparator circuit comprises, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, differential comparator;
Described optocoupler is placed between anti-dazzling screen and comparator circuit, described first resistance one end connects optocoupler positive pole, described second resistance one end also connects optocoupler positive pole, the described first resistance other end is connected with power supply with the second resistance other end, described second resistance one end also connects differential comparator normal phase input end, described 3rd resistance one end connects the second resistance other end, described 3rd resistance is slide rheostat, described 3rd resistance intermediate ends connects and is connected with differential comparator inverting input, described differential comparator output terminal connects the 4th resistance one end and first electric capacity one end respectively, described 4th another termination power of resistance, described first electric capacity other end ground connection.
The beneficial effect of technique scheme is: described infrared photoelectric sensor deft design is reasonable, effective record thunder and lightning frequency.
Described thunder-and-lightning counter remote supervision system, preferably, also comprises: mu balanced circuit and electric voltage observation circuit;
Described power supply output terminal connects stabilized voltage supply input end, described stabilized voltage supply 5V output terminal connects microprocessor unit power input and communications component power input respectively, described stabilized voltage supply 3.3V output terminal connects infrared photoelectric sensor power input, described power supply output terminal also connects electric voltage observation circuit power input, described electric voltage observation circuit output terminal connects microprocessor unit signal input part, for monitoring power supply voltage.
The beneficial effect of technique scheme is: carry out voltage stabilizing work by mu balanced circuit, carries out voltage detecting by electric voltage observation circuit.
Described thunder-and-lightning counter remote supervision system, preferably, described electric voltage observation circuit comprises: the 5th resistance, the 6th resistance, monitoring integrated circuit;
Described 5th resistance one end is connected with the 6th resistance one end, the described 5th resistance other end connects described power supply positive pole and monitoring integrated circuit power end positive pole, the described 6th resistance other end connects described power supply negative pole, monitoring integrated circuit power end negative pole and ground connection respectively, the described 5th resistance other end also connects monitoring integrated circuit voltage input end, and described 5th resistance one end also connects monitoring integrated circuit voltage input end.
The beneficial effect of technique scheme is: the monitoring voltage working condition that described electric voltage observation circuit can be stable, ensures remote supervision system working stability.
Described thunder-and-lightning counter remote supervision system, preferably, described communications component comprises: communication module and operators communication network;
Described microprocessor unit arranges communication module, and described communication module connects described operators communication network.
The beneficial effect of technique scheme is: sent by number of lightning strokes by communications component, notify user.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
Achieve electrical isolation between photoelectric sensor and mechanical type thunder-and-lightning counter, ensure that security and the accuracy of whole monitoring system, decrease the impact on mechanical type thunder-and-lightning counter itself simultaneously.Infrared photoelectric sensor reaction velocity is fast, can catch the action each time of mechanical counter, achieve the Real-Time Monitoring to number of lightning strokes.Utilize gsm communication module to send count information, achieve the remote monitoring to number of lightning strokes, the manpower and materials reducing maintenance department drop into, and produce good economic benefits.Remote monitoring main frame can autostore count value, provides data resource for analyzing from now on.By electric voltage observation circuit Real-Time Monitoring cell voltage, remind when dead battery capability staff to be changed, ensure that monitoring system normally works.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the utility model thunder-and-lightning counter remote supervision system schematic diagram;
Fig. 2 is the utility model thunder-and-lightning counter remote supervision system counter mechanical transmission mechanism schematic diagram;
Fig. 3 is the utility model thunder-and-lightning counter remote supervision system infrared photoelectric sensor schematic diagram;
Fig. 4 is the utility model thunder-and-lightning counter remote supervision system mu balanced circuit schematic diagram;
Fig. 5 is the utility model thunder-and-lightning counter remote supervision system electric voltage observation circuit schematic diagram.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1, this thunder-and-lightning counter remote supervision system is made up of counter mechanical transmission mechanism 1, infrared photoelectric sensor 2, microprocessing unit 3, gsm communication module 4, communication terminal 5, lithium battery group 6, mu balanced circuit 7, electric voltage observation circuit 8.Counter mechanical transmission mechanism 1 acts on infrared photoelectric sensor 2 by anti-dazzling screen; The output of infrared photoelectric sensor 2 is connected with microprocessing unit 3; Microprocessor unit 3 is connected with gsm communication module 4 by serial ports, and relevant information is mail to communication terminal 5 by GSM network by gsm communication module 4; Lithium battery group 6 coordinate Voltage stabilizing module 7 to be respectively direct supply that 1-4 provides coupling, wherein provides 5V DC voltage to gsm communication module and microprocessor unit, provides 3.3V DC voltage to infrared photoelectric sensor; Electric voltage observation circuit 8 input end and output terminal are connected lithium battery group 6 and microprocessing unit 3 respectively, to monitor battery status.
Mechanical transmission mechanism is made up of JS-8 type mechanical type thunder-and-lightning counter 11 and anti-dazzling screen 12, as shown in Figure 2.Mechanical type thunder-and-lightning counter 11 can collect lightning current when being struck by lightning and occurring and magnetize inner-core, make itself and the little magnetic sheet in inside inhale and, little magnetic sheet is rotated once except being made counter dial by gear train, also makes the anti-dazzling screen 12 be directly connected with it make a straight line back and forth movement.Anti-dazzling screen 12 adopts ultralight opaque-plastic thin slice, can not produce any impact to mechanical type thunder-and-lightning counter counting itself.
Infrared photoelectric sensor is made up of slot optical coupling 21 and comparator circuit 22, as shown in Figure 3.Slot optical coupling 21 is H206 type, and groove width is 6mm.Anti-dazzling screen 12 is positioned at outside slot optical coupling 21 groove at ordinary times, and its inner optocoupler diode is in conducting state, comparator circuit 22 output low level; When thunderbolt causes anti-dazzling screen 12 to move in slot optical coupling 21 groove, block correlation light path, its inner optocoupler diode is in cut-off state, and comparator circuit 22 exports high level.Gather infrared photoelectric sensor 2 output signal by microprocessing unit 3 and can realize counting.
Microprocessor unit 3 utilizes the sampling functions pulse signals of self to sample, and has the sample rate of 12bit sampling precision and 100k/s.After sampling, sampled value is converted to count value by microprocessor unit 3, and by sampling, the pulse number obtained counts with the decimal system.Microprocessor unit 3 also stores the control program of gsm communication module 4, can control that gsm module realizes periodically sending information, count value sends information, by various modes such as transmission information during monitoring terminal request when increasing by one time by serial ports; If thunderbolt frequently causes system counter to increase sharply, then send warning message immediately.Meanwhile, microprocessor unit 3 also detects battery status by electric voltage observation circuit 8, sends battery altering information when low level being detected to monitoring terminal.By being numbered each monitoring point, and utilize microprocessor unit 3 to carry clocking capability, every bar short message also comprises position, monitoring point and access time, so that maintainer accurately locates, takes specific aim measure in time.
The counting thunder value of microprocessor unit 3 transmission is received by the remote monitoring host computer GSM network in monitoring terminal 5.Wherein the program of the prior art of microprocessor unit use, does not innovate accordingly to program.
Mu balanced circuit 7 is made up of booster circuit 71 and reduction voltage circuit 72, as shown in Figure 4.Lithium battery group 6 adopts more piece high-capacity lithium battery in parallel, its safe operating voltage is usually within the scope of 3.7-4.2V, need be down to 3.3V voltage by reduction voltage circuit 71 is that infrared photoelectric sensor 1 is powered, and need rise to 5V by booster circuit 72 is that microprocessing unit 3 and gsm communication module 4 are powered.Booster circuit 71 with PT1301 type DC-DC voltage stabilizing chip for core, exportable relatively high power; Reduction voltage circuit for core, can ensure higher voltage accuracy with HT7333 Linear voltage stabilizing chip.
Electric voltage observation circuit 8 with extremely low power dissipation battery detection integrated circuit AX301 for core is formed, for monitoring lithium battery group terminal voltage, as shown in Figure 5.AX301 directly uses lithium battery group to power, and utilizes outer meeting resistance to arrange battery low threshold voltage for 3.3V.When cell voltage is lower than 3.3V, LBO output low level, voltage representative value is 0.3V; When cell voltage is higher than 3.3V, LBO exports high level, and voltage representative value is Vcc-0.3V.LBO end is connected to detect battery status with microprocessor unit 3.
The utility model provides a kind of thunder-and-lightning counter remote supervision system, it is characterized in that, comprising: counter mechanical transmission mechanism, infrared light transducer[sensor, microprocessor unit, communications component, power supply;
Described counter mechanical transmission mechanism connects infrared photoelectric sensor, described infrared photoelectric sensor signal output part connects microprocessor unit signal input part, described microprocessor unit signal output part connects communications component, described power supply high-voltage output terminal connects microprocessor unit power input and communications component power input respectively, described power supply low-voltage output end connects infrared photoelectric sensor power input
Described counter mechanical transmission mechanism inside arranges lightning current Acquisition Circuit and gathers thunder and lightning, described lightning current Acquisition Circuit connects iron core winding, magnetic sheet is placed in described iron core winding one end, gather lightning current when being struck by lightning and occurring and magnetize iron core winding, make magnetic sheet and iron core winding inhale and, inner gear train is driven to move, described inner gear train drives counter dial to carry out counting and adds up, described magnetic sheet also connects anti-dazzling screen, described anti-dazzling screen is placed on outside the optocoupler groove of infrared photoelectric sensor, make correlation conducting light paths, when thunderbolt occurs, anti-dazzling screen moves in optocoupler groove, correlation light path is ended, by conducting light paths or cut-off state by circuit transmission to microprocessor unit, described microprocessor unit stores the thunder and lightning quantity information received, thunder and lightning quantity information is sent to monitoring terminal by operators communication network.
The beneficial effect of technique scheme is: achieve electrical isolation between photoelectric sensor and mechanical type thunder-and-lightning counter, ensure that security and the accuracy of whole monitoring system, decreases the impact on mechanical type thunder-and-lightning counter itself simultaneously.Infrared photoelectric sensor reaction velocity is fast, can catch the action each time of mechanical counter, achieve the Real-Time Monitoring to number of lightning strokes.Utilize gsm communication module to send count information, achieve the remote monitoring to number of lightning strokes, the manpower and materials reducing maintenance department drop into, and produce good economic benefits.
Described thunder-and-lightning counter remote supervision system, preferably, described infrared photoelectric sensor comprises: optocoupler and comparator circuit, and described comparator circuit comprises, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, differential comparator;
Described optocoupler is placed between anti-dazzling screen and comparator circuit, described first resistance one end connects optocoupler positive pole, described second resistance one end also connects optocoupler positive pole, the described first resistance other end is connected with power supply with the second resistance other end, described second resistance one end also connects differential comparator normal phase input end, described 3rd resistance one end connects the second resistance other end, described 3rd resistance is slide rheostat, described 3rd resistance intermediate ends connects and is connected with differential comparator inverting input, described differential comparator output terminal connects the 4th resistance one end and first electric capacity one end respectively, described 4th another termination power of resistance, described first electric capacity other end ground connection.
The beneficial effect of technique scheme is: described infrared photoelectric sensor deft design is reasonable, effective record thunder and lightning frequency.
Described thunder-and-lightning counter remote supervision system, preferably, also comprises: mu balanced circuit and electric voltage observation circuit;
Described power supply output terminal connects stabilized voltage supply input end, described stabilized voltage supply 5V output terminal connects microprocessor unit power input and communications component power input respectively, described stabilized voltage supply 3.3V output terminal connects infrared photoelectric sensor power input, described power supply output terminal also connects electric voltage observation circuit power input, described electric voltage observation circuit output terminal connects microprocessor unit signal input part, for monitoring power supply voltage.
The beneficial effect of technique scheme is: carry out voltage stabilizing work by mu balanced circuit, carries out voltage detecting by electric voltage observation circuit.
Described thunder-and-lightning counter remote supervision system, preferably, described electric voltage observation circuit comprises: the 5th resistance, the 6th resistance, monitoring integrated circuit;
Described 5th resistance one end is connected with the 6th resistance one end, the described 5th resistance other end connects described power supply positive pole and monitoring integrated circuit power end positive pole, the described 6th resistance other end connects described power supply negative pole, monitoring integrated circuit power end negative pole and ground connection respectively, the described 5th resistance other end also connects monitoring integrated circuit voltage input end, and described 5th resistance one end also connects monitoring integrated circuit voltage input end.
The beneficial effect of technique scheme is: the monitoring voltage working condition that described electric voltage observation circuit can be stable, ensures remote supervision system working stability.
Described thunder-and-lightning counter remote supervision system, preferably, described communications component comprises: communication module and operators communication network;
Described microprocessor unit arranges communication module, and described communication module connects described operators communication network.
The beneficial effect of technique scheme is: sent by number of lightning strokes by communications component, notify user.
The utility model thunder-and-lightning counter remote supervision system, can realize each circuit of remote monitoring and suffer number of lightning strokes situation, and possesses the functions such as count value preservation, count value short message sending and alarming short message transmission, the transmission of battery altering information.Native system will suffer thunderbolt situation to inform maintenance department accurately in real time to each circuit, to take specific aim measure in time, the manpower and materials reduced needed for regular visit drop into, and create good economic benefit.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (5)

1. a thunder-and-lightning counter remote supervision system, is characterized in that, comprising: counter mechanical transmission mechanism, infrared light transducer[sensor, microprocessor unit, communications component, power supply;
Described counter mechanical transmission mechanism connects infrared photoelectric sensor, described infrared photoelectric sensor signal output part connects microprocessor unit signal input part, described microprocessor unit signal output part connects communications component, described power supply high-voltage output terminal connects microprocessor unit power input and communications component power input respectively, described power supply low-voltage output end connects infrared photoelectric sensor power input
Described counter mechanical transmission mechanism inside arranges lightning current Acquisition Circuit and gathers thunder and lightning, described lightning current Acquisition Circuit connects iron core winding, magnetic sheet is placed in described iron core winding one end, gather lightning current when being struck by lightning and occurring and magnetize iron core winding, make magnetic sheet and iron core winding inhale and, inner gear train is driven to move, described inner gear train drives counter dial to carry out counting and adds up, described magnetic sheet also connects anti-dazzling screen, described anti-dazzling screen is placed on outside the optocoupler groove of infrared photoelectric sensor, make correlation conducting light paths, when thunderbolt occurs, anti-dazzling screen moves in optocoupler groove, correlation light path is ended, by conducting light paths or cut-off state by circuit transmission to microprocessor unit, described microprocessor unit stores the thunder and lightning quantity information received, thunder and lightning quantity information is sent to monitoring terminal by operators communication network.
2. thunder-and-lightning counter remote supervision system according to claim 1, it is characterized in that, described infrared photoelectric sensor comprises: optocoupler and comparator circuit, and described comparator circuit comprises, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, differential comparator;
Described optocoupler is placed between anti-dazzling screen and comparator circuit, described first resistance one end connects optocoupler positive pole, described second resistance one end also connects optocoupler positive pole, the described first resistance other end is connected with power supply with the second resistance other end, described second resistance one end also connects differential comparator normal phase input end, described 3rd resistance one end connects the second resistance other end, described 3rd resistance is slide rheostat, described 3rd resistance intermediate ends connects and is connected with differential comparator inverting input, described differential comparator output terminal connects the 4th resistance one end and first electric capacity one end respectively, described 4th another termination power of resistance, described first electric capacity other end ground connection.
3. thunder-and-lightning counter remote supervision system according to claim 1, is characterized in that, also comprise: mu balanced circuit and electric voltage observation circuit;
Described power supply output terminal connects stabilized voltage supply input end, described stabilized voltage supply 5V output terminal connects microprocessor unit power input and communications component power input respectively, described stabilized voltage supply 3.3V output terminal connects infrared photoelectric sensor power input, described power supply output terminal also connects electric voltage observation circuit power input, described electric voltage observation circuit output terminal connects microprocessor unit signal input part, for monitoring power supply voltage.
4. thunder-and-lightning counter remote supervision system according to claim 3, is characterized in that, described electric voltage observation circuit comprises: the 5th resistance, the 6th resistance, monitoring integrated circuit;
Described 5th resistance one end is connected with the 6th resistance one end, the described 5th resistance other end connects described power supply positive pole and monitoring integrated circuit power end positive pole, the described 6th resistance other end connects described power supply negative pole, monitoring integrated circuit power end negative pole and ground connection respectively, the described 5th resistance other end also connects monitoring integrated circuit voltage input end, and described 5th resistance one end also connects monitoring integrated circuit voltage input end.
5. thunder-and-lightning counter remote supervision system according to claim 1, is characterized in that, described communications component comprises: communication module and operators communication network;
Described microprocessor unit arranges communication module, and described communication module connects described operators communication network.
CN201420665355.8U 2014-11-06 2014-11-06 Thunder-and-lightning counter remote supervision system Expired - Fee Related CN204228810U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104316754A (en) * 2014-11-06 2015-01-28 重庆大学 Thunder and lightning counter remote monitoring early warning system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104316754A (en) * 2014-11-06 2015-01-28 重庆大学 Thunder and lightning counter remote monitoring early warning system and method

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