CN100343680C - Lightning stroke detection and warning system - Google Patents
Lightning stroke detection and warning system Download PDFInfo
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- CN100343680C CN100343680C CNB2004100294016A CN200410029401A CN100343680C CN 100343680 C CN100343680 C CN 100343680C CN B2004100294016 A CNB2004100294016 A CN B2004100294016A CN 200410029401 A CN200410029401 A CN 200410029401A CN 100343680 C CN100343680 C CN 100343680C
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 208000025274 Lightning injury Diseases 0.000 title 1
- 238000004891 communication Methods 0.000 claims abstract description 28
- 238000010295 mobile communication Methods 0.000 claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims abstract description 4
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 claims description 43
- 239000004973 liquid crystal related substance Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000007717 exclusion Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 208000033999 Device damage Diseases 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
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- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The present invention relates to a thunderstrike detection alarm system which comprises a thunderstrike signal sampler, a remote alarm controller and a center receiving controller, wherein the thunderstrike signal sampler can detect the thunderstrike frequency of an unattended operation mobile communication base station, the lightning current peak value range of every thunderstrike, the time when the thunderstrike occurs and the operating state of a power supply arrester. The thunder and lightning detection remote alarm controller obtains the messages through a connection circuit and processes the messages. Sending alarm sound represents the position suffered from the thunderstrike, and all the messages are displayed by Chinese character LCD screens. Simultaneously, the messages are sent to a center receiver of an attended operation site through the communication modes of long lines or telephone lines or GMS short messages, and the center receiver sends the alarm sound and displays the alarm messages with the Chinese character LCD screen so as to notify relevant persons to process abnormal situations as early as possible. The present invention is provided with three communication interfaces and can satisfy the requirements of different situations. Simultaneously, utilizing the existing telephonic communication circuitry and the GMS system to progress the remote transmission of the signals saves the installation cost of devices.
Description
Technical field
The present invention relates to a kind of thunderbolt detection and remote alarming system that is used for places such as unmanned mobile communication base station.
Background technology
Along with the development of mobile communication and broadcast television technique, the quantity of mobile communication system, radio paging system, satellite mobile communication system, radio station and TV station is on the increase.Many base stations (transposer station) are the important component parts of these systems.Usually these places all are to have the people on duty, unmanned, in addition unattended.The mobile communication base station has generally comprised equipment such as transceiver, antenna, and is arranged on the higher place of height above sea level.Therefore, its probability that is struck by lightning is very big, in case thunderbolt has caused device damage, the loss of its economic aspect is huge.The power-supply system of mobile communication base station is one of main thoroughfare of thunderbolt, and power arrester has been installed usually, and this has played good protective action to transceiver power-supply system and main frame itself.But; installed power arrester be not equal to perfectly safe; the main cause that has an accident has: the thunderbolt that power arrester may suffer to surpass specified protection domain attacks; cause protection branch road permanent damage; after this; when the big electric current entry-line that thunderbolt causes being arranged again, may make power supply and device damage.In addition, thunder and lightning is a kind of spontaneous phenomenon at random, and location, mobile communication base station amplitude of lightning current size changes, generally from a few kA-tens kA.A power arrester can not protect base station power-supply system and equipment to be inviolable in so big thunder-strike current variation range.In addition, though lightning current can not make equipment damage immediately sometimes, can acceleration components and equipment aging, shorten its life-span greatly.Up to the present, relevant department is difficult in time understand the situation of the thunderbolt of unmanned mobile communication base station.And existing detection system also can't satisfy the purpose that thunder and lightning detects protection; as China Patent No. is No. 99213057.3 patents of invention; a kind of switchgear building power failure radio call warning device that industrial and mining enterprises and vast rural area unmanned switchgear building are used that is suitable for is disclosed; comprise the high pressure lack detection circuit; power electricity lack detection circuit; the power for illumination lack detection circuit; display circuit; countdown circuit; radio communication transmitter and radio paging receiver; when the electric power open phase fault takes place when; but radio call electrician; in time fix a breakdown; damage to avoid that electric equipment takes place; also simultaneously send calling alarm, be beneficial to supervision and management to the block supply center.But the said equipment is difficult to simultaneously, because it adopts radio call to report to the police, limit its use in the mountain area with in should detecting in the thunder and lightning of base station.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of and can detect the thunderbolt state in time, accurately, and detected thunderbolt result is sent to the thunderbolt detection alarm system of remote control center.
According to a kind of thunderbolt detection alarm provided by the invention system, comprise a lightning strike signals collector, one thunderbolt that is electrically connected with described collector detects the center reception controller that remote alarm controller and is electrically connected with described controller, it is characterized in that: described lightning strike signals collector comprises a current sensor, one real effective AC/DC change-over circuit, the single-chip microcomputer and a photoisolator of one band A/D conversion, described current sensor senses to lightning strike signals convert direct current signal to through described real effective AC/DC change-over circuit, the direct current signal after the conversion enters in the described single-chip microcomputer; The protection branch road of external power source lightning arrester is electrically connected by described photoisolator and described single-chip microcomputer; Described controller and described center receive controller and all comprise a single-chip microcomputer, a warning circuit, a liquid crystal display circuit, a phone integrated circuit, one 485 communication ICs, a GSM SMS communication module, a keyboard circuit and a power circuit to above-mentioned each circuit supply.
Described lightning strike signals collector can detect the number of times that the unmanned mobile communication base station is struck by lightning, the lightning current peak value scope of each thunderbolt, the time that thunderbolt takes place, the duty of power arrester, thunder and lightning detection remote alarm controller obtains these information by connecting circuit and handles, send chimes of doom and represent that this place has suffered thunderbolt, show full detail with the Chinese character liquid crystal display, simultaneously these information have been delivered to people on-site center on duty receiver by the communication modes of long line or telephone wire or gsm module, the center receiver sends chimes of doom and with Chinese character liquid crystal display display alarm information, notifies the related personnel to handle abnormal conditions as early as possible.
Also have following attached technical characterictic according to a kind of thunderbolt detection alarm provided by the invention system:
Described keyboard circuit comprises that one has the Sheffer stroke gate of eight input ends, a plurality of keyswitch, a latch and an exclusion.
Described current sensor is a LKT-30 type Hall magnetic compensation formula current sensor, described real effective AC/DC change-over circuit is a JT5V-P real effective AC/DC change-over circuit, single-chip microcomputer in the described collector is the PIC16C71 type ultra low-power microcontroller that has A/D converter, the model of described photoisolator is the TLP521 photoisolator, and the model of described 485 bus integrated circuit is SN75LBC184.
The model that described remote alarm controller and described center receive the single-chip microcomputer in the controller is AT89C58, and described phone integrated circuit is a MT8880 type phone integrated circuit.
The model of described GSM SMS module is DXY-900/1800.
Described warning circuit comprises a hummer BEEP and a LED light.
The exclusion that described keyboard circuit is 22K by CD4068 type eight input nand gates, 6 keyswitches, MC74HC573 latch and resistances constitutes.
Adopt serial communication mode between the single-chip microcomputer in single-chip microcomputer in the described collector and the described thunderbolt detection remote alarm controller.
Described liquid crystal display circuit comprises a VPG12032A-SC-HT-LED03 type graphic lcd and a liquid crystal display drive circuit.
The double-tone of the described MT8880 type phone integrated circuit sending end that takes place frequently is connected to an audio-frequency transformer (AFT).
Compared with prior art has following advantage according to a kind of thunderbolt detection alarm provided by the invention system: at first, the present invention can detect the lightning current peak value scope of the thunder and lightning of the number of times that is struck by lightning the mobile base station, each thunderbolt, the time that thunderbolt takes place, the duty of power arrester, in time notice related work personnel handle abnormal conditions as early as possible, avoid or reduce the loss that thunderbolt causes; Secondly, lightning strike signals collector of the present invention and remote alarm controller respectively adopt a single-chip microcomputer, and the input of system and processing power are improved greatly, can fully satisfy needs of the present invention; Once more, the present invention is provided with three communication interfaces, i.e. phone integrated circuit, 485 communication ICs and GSM communication module, can satisfy the needs of different occasions, simultaneously, utilize base station existing telephone communication line and gsm system to carry out the remote transmission of signal, save the installation cost of equipment.
Description of drawings
Fig. 1 is a system chart of the present invention.
Fig. 2 is the system chart of the remote alarm controller among the present invention.
Fig. 3 is the circuit theory diagrams of the lightning strike signals testing circuit among the present invention.
Fig. 4 is the circuit theory diagrams that medium-long range alarm controller of the present invention and center receive the single-chip microcomputer in the controller.
Fig. 5 is the circuit theory diagrams that medium-long range alarm controller of the present invention and center receive the keyboard circuit in the controller.
Fig. 6 is the circuit theory diagrams that medium-long range alarm controller of the present invention and center receive the liquid crystal display circuit in the controller.
Fig. 7 is the circuit theory diagrams that medium-long range alarm controller of the present invention and center receive 485 communication ICs in the controller.
Fig. 8 is the circuit theory diagrams that medium-long range alarm controller of the present invention and center receive the phone integrated circuit in the controller.
Fig. 9 is the circuit theory diagrams that medium-long range alarm controller of the present invention and center receive the warning circuit in the controller.
Figure 10 is the circuit theory diagrams of GSM communication module among the present invention.
Embodiment
Referring to Fig. 1 to Figure 10; according to a kind of preferred embodiment provided by the invention; comprise a lightning strike signals collector 1; one thunderbolt that is electrically connected with described collector 1 detects the center reception controller 3 that remote alarm controller 2 and is electrically connected with described controller 2; described lightning strike signals collector 1 comprises a current sensor 11; one real effective AC/DC change-over circuit 12; the single-chip microcomputer 15 and a photoisolator 16 of one band A/D conversion; described current sensor 11 is a LKT-30 type Hall magnetic compensation formula current sensor; described real effective AC/DC change-over circuit 12 is a JT5V-P real effective AC/DC change-over circuit; described single-chip microcomputer 15 is for having the PIC16C71 type ultra low-power microcontroller of A/D converter; the model of described photoisolator 16 is the TLP521 photoisolator; described LKT-30 type Hall magnetic compensation formula current sensor senses to lightning strike signals convert direct current signal to through described JT5V-P real effective AC/DC change-over circuit; direct current signal after the conversion enters in the described PIC16C71 single-chip microcomputer, and the protection branch road of external power source lightning arrester is electrically connected by described TLP521 photoisolator and described PIC16C71 single-chip microcomputer.
Referring to Fig. 3, the concrete course of work of the described collector 2 among the present invention is, when thunderbolt takes place, the output terminal of described LKT-30 type Hall magnetic compensation formula current sensor 11 obtain one with the proportional electric current I o of amplitude of lightning current Ii, on measuring resistance Rm, form the non-sinusoidal voltage waveform.Obtain square wave with the linear 0-5V of lightning current amplitude Ii by described JT5V-P real effective AC/DC change-over circuit 12.Described JT5V-P real effective AC/DC change-over circuit 12 connects the AN0 end of described PIC16C71 single-chip microcomputer 15, and the input end of the A/D conversion in the promptly described PIC16C71 single-chip microcomputer 15 obtains digital signal after the A/D conversion.Described PIC16C71 single-chip microcomputer 15 carries out analysis and judgement in view of the above, draws the thunderbolt number of times, the size of time of origin and each current pulse amplitude.If lightning current is very big; arbitrary protection branch road of lightning arrester is damaged; protective relay contact 19 by often open become normally closed; the output terminal of described photoisolator 16 becomes electronegative potential by noble potential; the A1-A4 pin interrupt response of described PIC16C71 single-chip microcomputer 15; the pin of continuous monitoring generation jump in potential if keep electronegative potential in one minute time always, judges that then this branch road damages then.The exclusion 13 in one 470 Europe that are electrically connected with described photoisolator 16 becomes the biasing resistor of luminotron in the described photoisolator 16, and 14 of the exclusions in one 10 Europe that are electrically connected with described photoisolator 16 become the pull-up resistor of photosensitive tube collector in the described photoisolator 16.
Referring to Fig. 2, Fig. 4 to Figure 10, receive controller 3 according to described controller 2 in a kind of preferred embodiment provided by the invention and described center and all comprise a single-chip microcomputer 21, a warning circuit 25, a liquid crystal display circuit 23, a phone integrated circuit 26,1 communication ICs 24, a GSM SMS module 27, a keyboard circuit 22 and a power circuit to above-mentioned each circuit supply; The model of described single-chip microcomputer is AT89C58, adopts serial communication mode between the single chip computer AT 89C58 in PIC16C71 single-chip microcomputer 15 in the described collector 1 and the described thunderbolt detection remote alarm controller 2.The model of described 485 bus integrated circuit 24 is SN75LBC184, and the model of described GSM SMS module 27 is DXY-900/1800.Described phone integrated circuit 26 is a MT8880 type phone integrated circuit.Described warning circuit 25 comprises a hummer BEEP and a LED light.Described liquid crystal display circuit 23 comprises a VPG12032A-SC-HT-LED03 type graphic lcd and a liquid crystal display drive circuit.The double-tone of described MT8880 type phone integrated circuit 26 sending end that takes place frequently is connected to an audio-frequency transformer (AFT) T1.The model of described audio-frequency transformer (AFT) T1 is TRANS5.The exclusion that described keyboard circuit 22 is 22K by CD4068 type eight input nand gates, 6 keyswitches, MC74HC573 latch and resistances constitutes.By being electrically connected between described keyboard circuit 22 and the described single-chip microcomputer 21, can realize man-machine conversation, can be used for being provided with sensitivity, adjustment time, manual queries data, the self check that thunder-strike current is measured.As long as one has button, described single-chip microcomputer 21 interrupts by middle fracture response immediately, carries out the button interrupt service routine.
Referring to Fig. 2, Fig. 4 to Figure 10, according to a kind of preferred embodiment provided by the invention, when described AT89C58 single-chip microcomputer 21 in time receives the thunderbolt information of described PIC16C71 single-chip microcomputer 15, handle immediately, processing procedure is: the P1.5 pin output noble potential of described AT89C58 single-chip microcomputer, make described hummer BEEP send chimes of doom, and make described LED light luminous.Described AT89C58 single-chip microcomputer 21 provides gating signal and warning message, dials, detects voice signal and connect local network by described MT8880 type phone integrated circuit 26, issues the described center reception controller 3 of information to far-end in the dual-tone multifrequency mode then.Described audio-frequency transformer (AFT) T1 mainly plays the impedance conversion effect.The alerting signal that described AT89C58 single-chip microcomputer 21 provides or carry out wired telecommunication by described SN75LBC184 type 485 communication integrated circuits 24 also can adopt the wireless communication mode of GSM SMS module 27.As for adopting which kind of communication modes, depend on the condition of unmanned mobile communication base station.If unmanned mobile communication base station and center duty room distance can at first consider to adopt described 485 long line communication modes in the same building group.The P3.0-P3.1 of described AT89C58 single-chip microcomputer 21 links to each other with described integrated circuit SN75LBC184 and constitutes 485 long line communication modes.If unmanned mobile communication base station and center duty room distance are far away, but telephone wire is housed, can adopt the telephone wire communication modes.3 address wires of described AT89C58 single-chip microcomputer 21 and four single data buses and described MT8880 type phone integrated circuit 26 are electrically connected, and are coupled to local network through described audio-frequency transformer (AFT) T1 again.Receive controller 3 at the described center of far-end and also be connected to local network.If unmanned mobile communication base station and center duty room distance are far away, and there is not telephone wire, can pass through GSM SMS module 27 communication modes, realize serial (Transistor-Transistor Logic level) communication, because present domestic base station great majority are transmission GSM signals, so need not increase any radio transmission and accepting device, any place can both cover.The P1.6 of described AT89C58 single-chip microcomputer 21 links to each other with the R pin T pin of described GSM SMS module 27 with P1.7.Receive controller 3 at the described center of far-end and also connect same GSM SMS module 27.Can utilize described keyboard circuit 22 that needed communication modes is set, in case set a kind of mode, other modes then cease to be in force automatically.Simultaneously, show thunderbolt number of times, time of origin, thunder-strike current amplitude, lightning arrester working condition by described VPG12032A-SC-HT-LED03 type graphic lcd and described liquid crystal display drive circuit.
Referring to Fig. 2, Fig. 4 to Figure 10, reception controller 3 of center described in the present invention and described remote alarm controller 2 are just the same at hardware aspect, preset two kinds of functions with described keyboard circuit 22, carry out different programs.After described center receiver 3 is received the thunderbolt information that described remote alarm controller 2 sends, send third contact of a total solar or lunar eclipse alerting signal immediately and show the number of times that is struck by lightning in this mobile base station and time, amplitude of lightning current, remind the staff to handle immediately.When normal monitor state, described center receiver 3 was patrolled once to the described remote alarm controller 2 of each mobile base station every one hour, described remote alarm controller 2 provides answer signal, show working properly, otherwise, to look into continuously eight times, if all no responses can think that remote controllers 2 are damaged by thunder and lightning.
Claims (10)
1, a kind of thunderbolt detection alarm system, comprise a lightning strike signals collector (1), one thunderbolt that is electrically connected with described collector (1) detects remote alarm controller (2) and one and the center reception controller (3) that is electrically connected of described controller (2), it is characterized in that: described lightning strike signals collector (1) comprises a current sensor (11), one real effective AC/DC change-over circuit (12), the single-chip microcomputer (15) and a photoisolator (16) of one band A/D conversion, the detected lightning strike signals of described current sensor (11) converts direct current signal to through described real effective AC/DC change-over circuit (12), direct current signal after the conversion enters in the described single-chip microcomputer (15), and the protection branch road of external power source lightning arrester is electrically connected by described photoisolator (16) and described single-chip microcomputer (15); Described remote alarm controller (2) and described center receive controller (3) and all comprise a single-chip microcomputer (21), a warning circuit (25), a liquid crystal display circuit (23), a phone integrated circuit (26), one 485 communication ICs (24), a GSM SMS module (27), a keyboard circuit (22) and a power circuit to above-mentioned each circuit supply;
Described lightning strike signals collector (1) can detect the number of times that the unmanned mobile communication base station is struck by lightning, the lightning current peak value scope of each thunderbolt, the time that thunderbolt takes place, the duty of power arrester, thunder and lightning detection remote alarm controller (2) obtains these information by connecting circuit and handles, send chimes of doom and represent that this place has suffered thunderbolt, show full detail with the Chinese character liquid crystal display, simultaneously these information have been delivered to people on-site center on duty receiver (3) by the communication modes of long line or telephone wire or GSM note, center receiver (3) sends chimes of doom and with Chinese character liquid crystal display display alarm information, notifies the related personnel to handle abnormal conditions as early as possible.
2, a kind of thunderbolt detection alarm as claimed in claim 1 system, it is characterized in that: described keyboard circuit (22) comprises that one has the Sheffer stroke gate of eight input ends, a plurality of keyswitch, a latch and an exclusion.
3, a kind of thunderbolt detection alarm as claimed in claim 1 system, it is characterized in that: described current sensor (11) is a LKT-30 type Hall magnetic compensation formula current sensor, described real effective AC/DC change-over circuit (12) is a JT5V-P real effective AC/DC change-over circuit, single-chip microcomputer (15) in the described collector (1) is for having the PIC16C71 type ultra low-power microcontroller of A/D converter, the model of described photoisolator (16) is the TLP521 photoisolator, and the model of described 485 bus integrated circuit (24) is SN75LBC184.
4, a kind of thunderbolt detection alarm as claimed in claim 1 system, it is characterized in that: the model that described remote alarm controller (2) and described center receive the single-chip microcomputer (21) in the controller (3) is AT89C58, and described phone integrated circuit (26) is a MT8880 type phone integrated circuit.
5, a kind of thunderbolt detection alarm as claimed in claim 1 system, it is characterized in that: described GSM SMS module (27) is a DXY-900/1800 type SMS module.
6, a kind of thunderbolt detection alarm as claimed in claim 1 system, it is characterized in that: described warning circuit (25) comprises a hummer BEEP and a LED light.
7, a kind of thunderbolt detection alarm as claimed in claim 2 system is characterized in that: the exclusion that described keyboard circuit (22) is 22K by CD4068 type eight input nand gates, 6 keyswitches, MC74HC573 latch and resistances constitutes.
8, a kind of thunderbolt detection alarm as claimed in claim 1 system is characterized in that: single-chip microcomputer (15) in the described collector (1) and described thunderbolt detect between the single-chip microcomputer (21) in the remote alarm controller (2) and adopt serial communication mode.
9, a kind of thunderbolt detection alarm as claimed in claim 1 system, it is characterized in that: described liquid crystal display circuit (23) comprises a VPG12032A-SC-HT-LED03 type graphic lcd and a liquid crystal display drive circuit.
10, a kind of thunderbolt detection alarm as claimed in claim 4 system is characterized in that: the double-tone of described MT8880 type phone integrated circuit (26) sending end that takes place frequently is connected to an audio-frequency transformer (AFT) T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100294016A CN100343680C (en) | 2004-03-17 | 2004-03-17 | Lightning stroke detection and warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100294016A CN100343680C (en) | 2004-03-17 | 2004-03-17 | Lightning stroke detection and warning system |
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| CN1670536A CN1670536A (en) | 2005-09-21 |
| CN100343680C true CN100343680C (en) | 2007-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100294016A Expired - Lifetime CN100343680C (en) | 2004-03-17 | 2004-03-17 | Lightning stroke detection and warning system |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7468505B2 (en) * | 2006-07-21 | 2008-12-23 | General Electric Company | Fiber optic current sensor system and method for detecting lightning |
| CN101515718B (en) * | 2009-01-13 | 2011-04-27 | 上海雷迅防雷技术有限公司 | Remote alarm method and a system of a surge protector |
| CN101799497B (en) * | 2009-02-06 | 2011-11-09 | 中国科学院空间科学与应用研究中心 | Thunder alarm instrument |
| CN101871980B (en) * | 2010-06-02 | 2012-03-07 | 中国科学院空间科学与应用研究中心 | Combined lightning monitoring and forecasting system |
| US8005617B2 (en) * | 2010-11-29 | 2011-08-23 | General Electric Company | System and method for detecting lightning strikes likely to affect a condition of a structure |
| US8239150B2 (en) * | 2011-05-16 | 2012-08-07 | General Electric Company | System, device, and method for detecting electrical discharges on a structure |
| CN102384997A (en) * | 2011-08-22 | 2012-03-21 | 上海雷迅防雷技术有限公司 | Lightning-striking sensor system adopting Hall linear element |
| CN102384998A (en) * | 2011-08-22 | 2012-03-21 | 上海雷迅防雷技术有限公司 | Lightning-stroke sensor system adopting Hall switch element |
| CN104330706A (en) * | 2014-11-20 | 2015-02-04 | 国家电网公司 | Lightning stroke detector |
| CN105182163B (en) * | 2015-09-23 | 2018-05-15 | 红相股份有限公司 | The online detecting system of UHVDC Arrester leakage current based on cloud |
| CN105182043B (en) * | 2015-09-23 | 2018-05-11 | 红相股份有限公司 | Detection device with non-contact sensor to UHVDC Arrester leakage current |
| CN105182044B (en) * | 2015-09-23 | 2018-05-15 | 红相股份有限公司 | Using device of the Hall sensor as framework to UHVDC Arrester state-detection |
| CN105182045B (en) * | 2015-09-23 | 2018-05-11 | 红相股份有限公司 | Big data platform using UHVDC Arrester state-detection data as framework |
| CN109387695A (en) * | 2017-08-14 | 2019-02-26 | 南京理工大学 | A kind of arrester lightning stroke action record and teletransmission warning device |
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| US6420862B2 (en) * | 2000-02-14 | 2002-07-16 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | System and method of locating lightning strikes |
| CN2569157Y (en) * | 2002-08-28 | 2003-08-27 | 尤毅力 | Detecting and reporting device for thunder and lightning breakdown of high voltage porcelain insulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170290Y (en) * | 1993-08-17 | 1994-06-29 | 张文圳 | Telescopic tackle-block |
| CN2388604Y (en) * | 1999-06-08 | 2000-07-19 | 陆占平 | Switchhouse power fault radio paging alarm device |
| US6420862B2 (en) * | 2000-02-14 | 2002-07-16 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | System and method of locating lightning strikes |
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| CN1670536A (en) | 2005-09-21 |
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