CN203732635U - Intelligent thunder monitoring device - Google Patents
Intelligent thunder monitoring device Download PDFInfo
- Publication number
- CN203732635U CN203732635U CN201420113202.2U CN201420113202U CN203732635U CN 203732635 U CN203732635 U CN 203732635U CN 201420113202 U CN201420113202 U CN 201420113202U CN 203732635 U CN203732635 U CN 203732635U
- Authority
- CN
- China
- Prior art keywords
- module
- lightning
- thunder
- monitoring device
- micro controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an intelligent thunder monitoring device comprising a thunder signal collection module, a microcontroller module, a clock module, a display control module, a wireless communication module and a power source module, wherein the thunder signal collection module, the clock module, the display control module and the wireless communication module are respectively connected with the microcontroller module. Because a plurality of anti-thunder means are taken, destruction and interference caused by thunder are effectively prevented, an analog circuit is isolated from a digital circuit, various interference signals are reduced, and collected signals are enabled to be high in accuracy and linearity.
Description
Technical field
The utility model relates to lightning monitoring art field, is a kind of intelligent lightning monitoring device specifically.
Background technology
Lightening detection technology is the important research field of thunder and lightning science, lightning monitoring system in the research of thunder and lightning and protection again in important position.The business such as power transmission and transformation shaft tower lightning monitoring, localization of fault and investigation, and ad hoc thunder and lightning connects sudden strain of a muscle monitoring system on special high constructure, measured basic data has larger meaning to the research of thunder and lightning science.In the research of lightning monitoring system, although there has been large-scale lightning monitoring field, cost is higher, and quantity is not a lot, and ground such as domestic only Shandong, Guangzhou etc. has at present.Lightning location network technology relies on the electromagnetic wave producing while surveying lightning generation to position lightning.But lightning location net error is rule of thumb to estimate or the detection information that accumulates carries out statistical study substantially, there is larger subjectivity, the larger blindness of selected also existence of orientator site location, lightning location net is larger to thunder and lightning waveform and ionization meter error simultaneously.And general monitoring system can only be single record thunder and lightning number of times, cannot measure and record intensity, the research of thunder and lightning science is caused to difficulty.
By retrieval, find that patent-shaft tower lightning monitoring system (CN203037747U) uses four harvesters, terminating machine, server to form lightning monitoring system; the thunderbolt time of origin and the amplitude of lightning current that collect are transferred to server by circuit; the method is not carried out lightning protection to data communication line; when thunderbolt is while affecting communication line, to measurement result, can impact and the method could not enough realize lightning current waveform is carried out to record.Patent-lightning monitoring Apparatus and system (CN203037749U) can effectively avoid thunder and lightning signal in transmitting procedure, to be subject to magnetic field and electromagnetic interference (EMI), but this system can not record number of lightning strokes and thunderbolt time.The comprehensive lightning monitoring instrument of patent-a kind of hyperchannel (CN203275530U) uses Luo-coil to gather the surge voltage that in area to be monitored, directly thunder is responded to; by coaxial cable, be transferred to overvoltage/current foldback circuit again; the method is not divided and is carried out circuit insulation blocking thunder and lightning signal acquisition part; because collection signal device is always in thunder and lightning environment; various undesired signals can enter acquisition system along with measured signal; thereby the accuracy of measured signal is reduced, cause and show wrong and control misalignment.Patent-a kind of lightning monitoring system and lightning monitoring terminal (CN202794323U) can not solve equally divides and carries out circuit insulation blocking problem thunder and lightning signal acquisition part.
Summary of the invention
The purpose of this utility model is for above-mentioned deficiency of the prior art, and a kind of intelligent lightning monitoring device is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of intelligent lightning monitoring device, comprise thunder and lightning signal acquisition module, micro controller module, clock module, display control module, wireless communication module and power module, thunder and lightning signal acquisition module, clock module, display control module and wireless communication module are connected with described micro controller module respectively, described power module can provide 5V left and right direct supply, is this intelligent lightning monitoring device power supply;
Described thunder and lightning signal acquisition module is formed by connecting by Luo-coil, protective resistance, bridge rectifier unit, filter unit, sampling resistor and light-coupled isolation sequence of unit, for gather thunder and lightning signal and by signal to micro controller module transmission; Luo-coil is a kind of air core coil of special construction, and containing iron core, advantage is not: measuring coil itself and tested current return be direct contacting of electricity not, but pass through electromagnetic field couples, with major loop by good electric insulation; Meanwhile, its measurement range is wide, can, from several A to hundreds of kA, more than frequency can be designed into 0.1 ~ 100MHz, and be easy to digital output.General lightning impulse current is many in 1 ~ 200kA, and main frequency component is between 700Hz ~ 1610Hz.By rational design, Luo-coil can be crossed and measure the lightning current variation within the scope of 1/10 μ s and 20/500 μ s of 3 ~ 150kA, waveform.The lightning current of output, between 0 ~ 3.5A, is used the precision resistance of 1 Ω as sampling resistor, and sampled voltage, between 0 ~ 3.5V, and can make output sensitivity be approximately 0.57V/kA, meets the measurement requirement of most of thunder and lightning.
Described micro controller module is for the treatment of thunder and lightning signal.
Described clock module is used for providing time data; Clock module can adopt low-power chip DS1302, can be automatically to second, minute, time, day, week, moon, read year and leap year compensation is counted the demonstration of expansion permanent calendar function, employing three-wire interface and carry out synchronous communication for controller.Communication is simple and precision is higher, meets this system requirements.
Described display control module is for showing and touch control operation; Can adopt TFT resistive touch color screen.
Described wireless communication module is for carrying out data transmission with the computing machine of monitor data, design friendly man-machine interface, facilitate user to check data, can also place " recalling inquiry " function button, in order to realize the function of enquiry of historical data by touch-screen simultaneously.
Described micro controller module is selected the STM32F103 of ST company microcontroller.It take Cortex-M3 as kernel, there is the features such as high-performance, low-power consumption, real-time, frequency of operation is 72MHz, the peripheral hardware that built-in high speed reservoir, 12 bit A/D converters, SDIO driver module, timer etc. connect by APB bus, 80 I/O interfaces and up to the flash memory of 128KB and the SRAM of 20KB, and 3 kinds of low-power consumption modes are provided, supply reasonably optimizing power consumption of user.
Described light-coupled isolation unit adopts the linear optical coupling element that model is HCNR201.
Described wireless communication module comprises RS485 communication interface and high-speed switch, between A, the B end of the signal input of described RS485 communication interface, connect power resistor, and respectively by ground connection after a Transient Suppression Diode, the Transient Suppression Diode that is simultaneously connected in parallel, RS485 communication interface A, B end two ends are connected in series respectively the gas-discharge tube that is connected in parallel after power resistor and high-speed switch.
This intelligent lightning monitoring device also comprises that, for storage data SD card storage module, described SD card storage module is connected with described micro controller module.Make this device there is the function of recalling inquiry, can inquire about the time of system records in recent years intensity of lightning, lightning current waveform, intraday thunder and lightning number of times and generation.
The utlity model has following outstanding beneficial effect:
1, thunder and lightning and weak current part are formed to isolation by Luo-coil and light-coupled isolation unit, the damage can effectively anti-microcontroller causing because of the lightning surge on circuit.
2, lightning current signals collecting part has been carried out to circuit protection, adopted 2 route optic coupling elements, realized the isolation of mimic channel and digital circuit, reduced various undesired signals, made the signal collecting there is higher degree of accuracy and the linearity.
3, by increasing protection switch, communication line has been adopted to lightning protection means, made communicating circuit unaffected, effectively protected communicating circuit.
5, the utility model intelligent lightning monitoring device integrated level is higher, and volume is little, cost is low, stability is strong, safe and reliable, easy to use and flexible.
Accompanying drawing explanation
Fig. 1 is intelligent lightning monitoring device modular structure schematic diagram of the present utility model;
Fig. 2 is the thunder and lightning signal acquisition module circuit diagram in the utility model;
Fig. 3 is the wireless communication module circuit diagram in the utility model;
In figure, 1-thunder and lightning signal acquisition module, 4-micro controller module, 3-display control module, 2-clock module, 5-wireless communication module, 6-SD card storage module, 7-power module.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Participate in accompanying drawing 1, a kind of intelligent lightning monitoring device, comprise thunder and lightning signal acquisition module 1, micro controller module 4, clock module 2, display control module 3, wireless communication module 5, for storage data SD card storage module 6 and power module 7, thunder and lightning signal acquisition module 1, clock module 2, display control module 3, SD card storage module 6 and wireless communication module 5 are connected with described micro controller module 4 respectively, and described power module 7 is this intelligent lightning monitoring device power supply;
Referring to Fig. 2; the linear optical coupling element that described thunder and lightning signal acquisition module 1 is HCNR201 by Luo-coil, protective resistance R1, bridge rectifier unit, filter unit, sampling resistor R2 and model is linked in sequence and forms, for gathering thunder and lightning signal and signal being transmitted to micro controller module 4.Wherein, filter unit adopts 2 capacitor C 1, C2 and 1 Π type LC filtering circuit that iron inductance L1 forms.Such circuit strong adaptability, the electric current that the impact of commutator tube is delivered in microcontroller are little, and output current is more level and smooth.By the magnitude of voltage after rectification, filtering circuit, approximately decay to 90% of initial value, can, by the software compensation of microcontroller, revise.Luo-coil sampling obtains lightning current, by one in case after the excessive protective resistance R1 of electric current, utilize bridge rectifier circuit and filtering circuit, electric current is become to direct current, the precision resistance R2 that is 1 Ω by a size is afterwards as sampling resistor, obtain lightning voltage amount, divide 2 tunnels to produce pulse signal to microcontroller by optocoupler the voltage signal collecting again, a negative edge will be exported in one tunnel when having lightning voltage, trigger the external interrupt of microcontroller, make microcontroller work, all the other time, microcontroller can be in low power consumpting state, reduce system power dissipation, the inside ADC that microcontroller is given by output analog voltage in one tunnel carries out A/D conversion and processes.HCNR201 is the linear optical coupling of a high linearity, broadband, low temperature gain, by external different discrete device, can realize multiple photoelectricity isolation change-over circuit.
Micro controller module 4 in the present embodiment adopts STM32F103 microcontroller, and described clock module 2 adopts low-power chip DS1302; Display control module 3 adopts TFT resistive touch color screen.
Referring to Fig. 3, the transmission wireless communication module 5 that carries out data for the computing machine with monitor data comprises RS485 communication interface and high-speed switch, between A, the B end of the signal input of described RS485 communication interface, connect power resistor, and respectively by ground connection after a Transient Suppression Diode, the Transient Suppression Diode that is simultaneously connected in parallel, RS485 communication interface A, B end two ends are connected in series respectively the gas-discharge tube that is connected in parallel after power resistor and high-speed switch.Adopted a kind of special high-speed switch for RS485 communication to be called for short TUB.If run into thunderbolt or large surge voltage in circuit while entering from COMA, COMB line, power resistor R12, R13 play the effect of current limliting, if immediate current during considerably beyond the working value of TUB, TUB disconnects whole circuit in 1us.TVS in Fig. 3 is that Transient Suppression Diode is a kind of high-effect protection device of diode form; when the two poles of the earth of TVS diode are subject to reverse transient state high energy impact events; it can be with the speed of 10-12 second-time; the high impedance of its two interpolar is become to Low ESR; the surge power of absorption up to thousands of watts; make the voltage clamp of two interpolars in a predetermined value, effectively protect the precision components in electronic circuit, avoid the damage of various surge pulses.TUB rear end residual voltage is introduced the earth by TVS, and TUB front end residual voltage is introduced the earth by gas-discharge tube FDG, makes communicating circuit unaffected, thereby has protected communicating circuit.RS485 communication is to supplement based on a kind of of RS422 mechanics of communication, and this technology adopts the data collector that balanced type sends, differential mode receives to drive bus, can realize 2 cable transmission, nearly 128 branch nodes.Therefore, this bus has advantages of that the multiple-contact of support, long transmission distance and use cost are low, becomes the first-selection of data transmission in industrial applicability.According to the concrete condition in practical application; RS485 can also be for conversion into RS232 communication mode by RS485/RS232 transducer through the signal of lightning protection output before the computing machine of access monitor data; by serial ports, access the computing machine of monitor data; complete the compunication of microcontroller and monitor data, RS485 interface chip model is MAX3089.
When thunder and lightning signal acquisition module 1 gathers after thunder and lightning signal, signal is transmitted to micro controller module 4; Micro controller module 4 is processed it, then by wireless communication module 5, to the computing machine of monitor data, carries out data transmission, and meanwhile, data result can show by display control module 3.Because Luo-coil and light-coupled isolation unit form isolation and by increasing protection switch, communication line adopted to lightning protection means, destruction and the interference of thunder and lightning have effectively been avoided; Adopt 2 route optic coupling elements simultaneously, realize the isolation of mimic channel and digital circuit, reduced various undesired signals, make the signal collecting there is higher degree of accuracy and the linearity.
Be more than preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model, when the function producing does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (5)
1. an intelligent lightning monitoring device, it is characterized in that, this intelligent lightning monitoring device comprises thunder and lightning signal acquisition module (1), micro controller module (4), clock module (2), display control module (3), wireless communication module (5) and power module (7), thunder and lightning signal acquisition module (1), clock module (2), display control module (3) and wireless communication module (5) are connected with described micro controller module (4) respectively, and described power module (7) is this intelligent lightning monitoring device power supply;
Described thunder and lightning signal acquisition module (1) is formed by connecting by Luo-coil, protective resistance, bridge rectifier unit, filter unit, sampling resistor and light-coupled isolation sequence of unit, for gathering thunder and lightning signal and signal being transmitted to micro controller module (4);
Described micro controller module (4) is for the treatment of thunder and lightning signal;
Described clock module (2) is for providing time data;
Described display control module (3) is for showing and touch control operation;
Described wireless communication module (5) carries out data transmission for the computing machine with monitor data.
2. intelligent lightning monitoring device according to claim 1, is characterized in that, described micro controller module (4) is STM32F103 microcontroller.
3. intelligent lightning monitoring device according to claim 1, is characterized in that, described light-coupled isolation unit adopts the linear optical coupling element that model is HCNR201.
4. intelligent lightning monitoring device according to claim 1, it is characterized in that, described wireless communication module (5) comprises RS485 communication interface and high-speed switch, between A, the B end of the signal input of described RS485 communication interface, connect power resistor, and respectively by ground connection after a Transient Suppression Diode, the Transient Suppression Diode that is simultaneously connected in parallel, RS485 communication interface A, B end two ends are connected in series respectively the gas-discharge tube that is connected in parallel after power resistor and high-speed switch.
5. intelligent lightning monitoring device according to claim 1, is characterized in that, this intelligent lightning monitoring device also comprises for storage data SD card storage module (6), and described SD card storage module (6) is connected with described micro controller module (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113202.2U CN203732635U (en) | 2014-03-13 | 2014-03-13 | Intelligent thunder monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113202.2U CN203732635U (en) | 2014-03-13 | 2014-03-13 | Intelligent thunder monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732635U true CN203732635U (en) | 2014-07-23 |
Family
ID=51202697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420113202.2U Expired - Fee Related CN203732635U (en) | 2014-03-13 | 2014-03-13 | Intelligent thunder monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901280A (en) * | 2014-03-13 | 2014-07-02 | 南京信息工程大学 | Intelligent thunder and lightning monitoring device |
-
2014
- 2014-03-13 CN CN201420113202.2U patent/CN203732635U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901280A (en) * | 2014-03-13 | 2014-07-02 | 南京信息工程大学 | Intelligent thunder and lightning monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103901280A (en) | Intelligent thunder and lightning monitoring device | |
| CN201742158U (en) | Online monitoring device for power transformer | |
| CN101825654B (en) | Self energy supply lightning current detection system | |
| CN201352233Y (en) | Three-phase multifunctional electric energy meter with power carrier communication | |
| CN101476903A (en) | General-purpose interface collection system of sensor | |
| CN201845051U (en) | Three-phase intelligent electric energy meter | |
| CN103986416B (en) | A kind of portable light photovoltaic assembly monitoring side | |
| CN107105056A (en) | A kind of cloud control electric meter system based on WiFi communication | |
| CN202600064U (en) | Long-distance real-time online detector for lightning arrester | |
| CN101359004A (en) | Current sensor for measuring inhomogeneity of electric potential distribution of lightning arrester | |
| CN203519723U (en) | Wide range DC electric energy meter | |
| CN202471852U (en) | Lightning arrester on-line monitoring device | |
| CN203688661U (en) | Acquisition circuit for state variable of electric energy meter | |
| CN203732635U (en) | Intelligent thunder monitoring device | |
| CN203275530U (en) | Multi-channel integrated thunder and lightning monitor | |
| CN203587684U (en) | Single-phase electricity meter metering protection circuit | |
| CN201408221Y (en) | Lighting current multistage counter | |
| CN103267890B (en) | Multichannel comprehensive thunder and lightning monitor | |
| CN209417268U (en) | A kind of parameter testing diagnostic machine of the pulse power | |
| CN202382873U (en) | Intelligent temperature transmitter | |
| CN204142835U (en) | A kind of single-phase electric energy meter | |
| CN202393824U (en) | Arrester signal acquisition device for protecting series compensation capacitor | |
| CN205450107U (en) | Radio communication's electricity inspection terminal | |
| CN203084093U (en) | Monitor used for lightning arrester | |
| CN203133201U (en) | Integrated measurement device for energy-storage grid-connected system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20160313 |