CN102064395A - Grounding device and working method thereof - Google Patents
Grounding device and working method thereof Download PDFInfo
- Publication number
- CN102064395A CN102064395A CN2009102263462A CN200910226346A CN102064395A CN 102064395 A CN102064395 A CN 102064395A CN 2009102263462 A CN2009102263462 A CN 2009102263462A CN 200910226346 A CN200910226346 A CN 200910226346A CN 102064395 A CN102064395 A CN 102064395A
- Authority
- CN
- China
- Prior art keywords
- ground wire
- ground
- checkout gear
- stake
- thread
- 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.)
- Granted
Links
Images
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention provides a grounding device and a working method thereof. The grounding device comprises a ground wire pile, a ground wire head and a detecting device, wherein the ground wire head is fixed on the ground wire pile in a mode convenient for assembling and disassembling; the detecting device is fixed on the ground wire head; an identification tag and an acquisition trigger are installed on the ground wire pile; a ground wire connecting part and a ground wire pile connecting part are arranged on the ground wire head; the detecting device comprises a code acquiring circuit and a trigger circuit which can identify the identity tag on the ground wire pile, and also comprises a wireless communication circuit which can send the identified identity tag information to a remote receiving host machine in a wireless communication mode; and the code acquiring circuit, the trigger circuit and the wireless communication circuit are all arranged in a shell of the detecting device. The device provided by the invention detects the action when the ground wire is hung on the ground wire pile or removed from the ground wire pile in real time, and sends the state to a microcomputer anti-misoperation device in a wireless communication mode to prevent misoperation of the ground wire.
Description
Technical field
The invention belongs to electrical equipment technical field, relate in particular to a kind of grounding wire device and method of work thereof.Apparatus of the present invention are mainly used in transformer station, power plant carries out tracing management to temporary ground wire, realization is left the ground wire stake to the hanging earthing conductor stake of temporary ground wire and dismounting and is carried out tracing and monitoring, system is used in combination with microcomputer anti-error, can prevent the generation of temporary ground wire misoperation.
Background technology
" five is anti-" block sytem is China's electric power system is used to prevent the back brake misoperation in to power plant, transformer station's power transmission and distribution process a kind of control system, and it mainly is the generation that prevents following five class accidents with technological means: prevent mistakenly entering charged chamber, prevent mistake drawing switch, prevent on-load drawing disconnecting link, prevent charged hanging ground-wire, prevent to be with ground wire to close disconnecting link.The electric power accident that causes owing to the back brake misoperation happens occasionally over the years, and the accident that " charged hanging ground-wire " and " the band ground wire closes disconnecting link " causes is maximum, tracing it to its cause mainly is owing to lack the technological means of temporary ground wire (being called for short " ground wire ") being carried out the effective monitoring tracing management, can't the real-time tracking temporary ground wire articulate/dismantling operation causes.The present invention is just for head it off, realizes the articulating of temporary ground wire/dismantling operation is carried out real-time tracking.By being used with the microcomputer anti-error system, round Realization prevents the misoperation of temporary ground wire.
Summary of the invention
The object of the present invention is to provide a kind of grounding wire device and method of work thereof, can follow the tracks of the earth connection insertion or leave ground wire stake state, the state that makes ground wire articulate, remove the ground wire stake can be gathered in real time, provides ground wire more perfect anti-error function.
The present invention is achieved through the following technical solutions:
Grounding wire device includes the ground wire stake, adopts the mode of easy disassembly to be fixed on ground the end of a thread in the described ground wire stake, and wherein, described grounding wire device also includes checkout gear, and described checkout gear is fixed on ground the end of a thread; Identification tag and trigger collection device are installed in the described ground wire stake; Described ground the end of a thread is provided with ground wire connecting portion and ground wire stake connecting portion; Described checkout gear include can discern identity label in the ground wire stake adopt decoding circuit and circuits for triggering, also comprise and can send to the radio communication circuit that a distant place receives main frame to the identity label information that recognizes by communication; Describedly adopt the enclosure that decoding circuit, circuits for triggering and radio communication circuit all are arranged on checkout gear.
The method of work of grounding wire device comprises the steps:
Step 1 inserts the ground wire stake with the ground the end of a thread that connects ground wire;
Step 2, the checkout gear on the trigger collection device triggering ground the end of a thread in the ground wire stake enters operating state from the sleep state of low-power consumption;
Step 5, checkout gear enters low-power sleep state;
Step 6 is removed the ground wire stake with ground the end of a thread;
The checkout gear that step 7, the trigger collection device in the ground wire stake trigger on ground the end of a thread enters operating state by sleep state;
Step 9, checkout gear enters low-power sleep state.
Beneficial effect of the present invention is as follows:
Grounding wire device of the present invention is equipped with identification tag and trigger collection device in the ground wire stake; One end of described ground the end of a thread and the cable of temporary ground wire are connected to a fixed, and the other end of ground the end of a thread is equipped with intelligent detection device; Checkout gear can be discerned the identity label in the ground wire stake, and can send to reception main frame in a distant place to the identity label information that recognizes by communication.The method of work of grounding wire device of the present invention, when temporary ground wire ground the end of a thread hangs up the stake of (connection) ground wire, trigger in the ground wire stake triggers the checkout gear work on ground the end of a thread, and checkout gear sends to the identity label information in the ground wire stake that recognizes by the mode of radio communication the reception main frame in a distant place; And when temporary ground wire ground the end of a thread leaves the stake of (dismounting) ground wire, trigger in the ground wire stake triggers the checkout gear work on ground the end of a thread equally, the information of leaving the ground wire stake is sent to equally the main frame in a distant place by the mode of radio communication, thereby can obtain the state of current this temporary ground wire institute hanging ground-wire stake on the main frame in the distance, realize that the state of temporary ground wire is gathered in real time.Checkout gear is in non operating state after the transmission that is triggered articulates and remove temporary ground wire information, this moment, its electronic circuit was in sleep state, can save the energy.Grounding wire device of the present invention can be followed the tracks of ground wire and insert or remove ground wire stake state, and the state that makes ground wire articulate, remove the ground wire stake can be gathered in real time, provides earth connection more perfect anti-error management function.
Description of drawings
Fig. 1 is the checkout gear circuit block diagram of grounding wire device of the present invention;
Fig. 2 is the schematic flow sheet of the method for work of grounding wire device of the present invention;
Fig. 3 is the structural representation of ground the end of a thread of grounding wire device of the present invention;
Fig. 4 is the structural representation of the ground wire stake of grounding wire device of the present invention;
Fig. 5 is the structural representation of the checkout gear of grounding wire device of the present invention;
Fig. 6 is the overall structure schematic diagram of grounding wire device of the present invention.
Description of reference numerals:
1-is ground wire cable bolt connecting device in succession, 2-ground wire head main body, 3-wing nut, the 4-holder, 5-ground the end of a thread jack, 6-magnet steel, 7-RFID identity label chip, 8-checkout gear, 9-tongue tube, 11-ground connection annealed copper wire, the installing hole of 21-checkout gear, 81-CPU circuit, 82-radio communication circuit, 83-RFID identification circuit, 84-magnetic field circuits for triggering, 85-battery supply, 86-antenna, the stake of 100-ground wire, 200-ground the end of a thread.
Embodiment
One of specific embodiment of the invention by ground the end of a thread, be installed in ground on the end of a thread checkout gear and the ground wire stake that has an identity label form.
Ask for an interview Fig. 1, Fig. 3 to Fig. 6, the present invention discloses a kind of grounding wire device, includes ground wire stake 100, adopts the mode of easy disassembly to be fixed on ground the end of a thread 200 in the described ground wire stake, wherein, described grounding wire device also includes checkout gear 8, and described checkout gear 8 is fixed on ground the end of a thread 200; Identification tag and trigger collection device are installed in the described ground wire stake 100; Described ground the end of a thread is provided with ground wire connecting portion and ground wire stake connecting portion; What described checkout gear included the identity label that can discern in the ground wire stake adopts decoding circuit and circuits for triggering, also comprises and can send to the radio communication circuit that a distant place receives main frame to the identity label information that recognizes by communication; Describedly adopt the enclosure that decoding circuit, circuits for triggering and radio communication circuit all are arranged on checkout gear.
Ask for an interview Fig. 4, described ground wire stake 100 includes holder 4 and is fixed on pile body on the described holder 4, and described pile body is provided with ground the end of a thread jack 5 and identification tag and trigger collection device.
Described identification tag is a kind of RFID identity label chip 7.
Described trigger collection device is a kind of magnet steel 6.
Described holder 4 is provided with the ground connection pad.
Ask for an interview Fig. 3, ground the end of a thread 200 includes ground wire head main body 2, and described ground wire connecting portion is in an end of ground wire head main body 2, is ground wire cable bolt connecting device 1 in succession; Double-screw bolt that the other end that described ground wire stake connecting portion is a ground wire head main body 2 is provided with and the wing nut 3 that cooperates with this double-screw bolt; Described ground wire head main body 2 also is provided with the installing hole 21 of a plurality of checkout gears.
Ask for an interview Fig. 1,5, checkout gear 8 includes shell and is contained in internal circuit in the shell, and described internal circuit comprises cpu circuit 81, radio communication circuit 82, adopts decoding circuit, circuits for triggering, battery supply 85 and antenna 86; The described decoding circuit of adopting adopts RFID identification circuit 83, described circuits for triggering to adopt magnetic field circuits for triggering 84; Described magnetic field circuits for triggering 84, RFID identification circuit 83 and radio communication circuit 82 are connected with cpu circuit 81, and antenna 86 is connected with radio communication circuit 82.
Described magnetic field circuits for triggering 84 include tongue tube 9.
Grounding wire device of the present invention, operation principle is:
Ground the end of a thread 200 is by ground wire cable bolt connecting device 1 and earth cable are fixed into one in succession, checkout gear 8 is fixed on ground the end of a thread 200, when hanging earthing conductor, 5 li of ground the end of a thread jacks of ground the end of a thread 200 insertion ground wire stakes 100, as Fig. 6, at this moment the magnet steel 6 in the ground wire stake 100 triggers the checkout gear 8 startup work on ground the end of a thread, checkout gear will read the RFID code value in the ground wire stake, thereby recognize the position that ground wire articulates, mode by radio communication sends to the anti-error main frame in a distant place to the RFID code value, enters the sleep low power consumpting state then; Local the end of a thread is removed and is left the ground wire stake, and checkout gear detects the variation in magnet steel magnetic field, confirms to leave the ground wire stake, by communication information is sent to the anti-error main frame in a distant place equally, enters the sleep low power consumpting state then.Thereby being grounded the state real-time tracking of line, anti-error main frame carries out anti-false judgment and processing according to the state of earth connection, thereby is grounded the line anti-misoperation.
The method of work of grounding wire device of the present invention is asked for an interview Fig. 2, comprises the steps:
Step 1 inserts the ground wire stake with the ground the end of a thread that connects ground wire;
Step 2, the checkout gear on the trigger collection device triggering ground the end of a thread in the ground wire stake enters operating state from the sleep state of low-power consumption;
Step 5, checkout gear enters low-power sleep state;
Step 6 is removed the ground wire stake with ground the end of a thread;
The checkout gear that step 7, the trigger collection device in the ground wire stake trigger on ground the end of a thread enters operating state by sleep state;
Step 9, checkout gear enters low-power sleep state.
Certainly, the present invention also has other concrete form of implementation.In a word, so long as conspicuous change is done in prompting according to the present invention, and other every change that does not break away from essence of the present invention and make, all should be included within the described scope of this claim.
Claims (10)
1. grounding wire device, include ground wire stake (100), adopt the mode of easy disassembly to be fixed on ground the end of a thread (200) in the described ground wire stake, it is characterized in that: described grounding wire device also includes checkout gear (8), and described checkout gear (8) is fixed on ground the end of a thread (200); Identification tag and trigger collection device are installed in the described ground wire stake (100); Described ground the end of a thread is provided with ground wire connecting portion and ground wire stake connecting portion; What described checkout gear included the identity label that can discern in the ground wire stake adopts decoding circuit and circuits for triggering, also comprises and can send to the radio communication circuit that a distant place receives main frame to the identity label information that recognizes by communication; Describedly adopt the enclosure that decoding circuit, circuits for triggering and radio communication circuit all are arranged on checkout gear.
2. grounding wire device as claimed in claim 1, it is characterized in that: described ground wire stake (100) includes holder (4) and is fixed on pile body on the described holder (4), and described pile body is provided with ground the end of a thread jack (5) and identification tag and trigger collection device.
3. grounding wire device as claimed in claim 2 is characterized in that: described identification tag is a kind of RFID identity label chip (7).
4. grounding wire device as claimed in claim 2 is characterized in that: described trigger collection device is a kind of magnet steel (6).
5. grounding wire device as claimed in claim 2 is characterized in that: described holder (4) is provided with the ground connection pad.
6. as any one described grounding wire device in the claim 1 to 5, it is characterized in that: described ground the end of a thread (200) includes ground wire head main body (2), described ground wire connecting portion is in an end of ground wire head main body (2), is ground wire cable bolt connecting device (1) in succession; Double-screw bolt that the other end that described ground wire stake connecting portion is a ground wire head main body (2) is provided with and the wing nut (3) that cooperates with this double-screw bolt; Described ground wire head main body (2) also is provided with the installing hole (21) of an above checkout gear.
7. grounding wire device as claimed in claim 6, it is characterized in that: described checkout gear (8) includes shell and is contained in internal circuit in the shell, described internal circuit comprises cpu circuit (81), radio communication circuit (82), adopts decoding circuit, circuits for triggering, battery supply (85) and antenna (86).
8. grounding wire device as claimed in claim 7 is characterized in that: the described decoding circuit of adopting adopts RFID identification circuit (83), described circuits for triggering to adopt magnetic field circuits for triggering (84); Described magnetic field circuits for triggering (84), RFID identification circuit (83) and radio communication circuit (82) are connected with cpu circuit (81), and antenna (86) is connected with radio communication circuit (82).
9. grounding wire device as claimed in claim 8 is characterized in that: described magnetic field circuits for triggering (84) include tongue tube (9).
10. as the method for work of claim 1 or 9 described grounding wire devices, comprise the steps:
Step 1 inserts the ground wire stake with the ground the end of a thread that connects ground wire;
Step 2, the checkout gear on the trigger collection device triggering ground the end of a thread in the ground wire stake enters operating state from the sleep state of low-power consumption;
Step 3, checkout gear read the identity label information in the ground wire stake;
Step 4, checkout gear is given distant place main frame by radio communication circuit wireless transmission identity label information;
Step 5, checkout gear enters low-power sleep state;
Step 6 is removed the ground wire stake with ground the end of a thread;
The checkout gear that step 7, the trigger collection device in the ground wire stake trigger on ground the end of a thread enters operating state by sleep state;
Step 8, checkout gear sends to distant place main frame to ground wire dismounting information by radio communication circuit;
Step 9, checkout gear enters low-power sleep state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200910226346 CN102064395B (en) | 2009-11-17 | 2009-11-17 | Grounding device and working method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200910226346 CN102064395B (en) | 2009-11-17 | 2009-11-17 | Grounding device and working method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102064395A true CN102064395A (en) | 2011-05-18 |
CN102064395B CN102064395B (en) | 2013-03-13 |
Family
ID=43999569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200910226346 Active CN102064395B (en) | 2009-11-17 | 2009-11-17 | Grounding device and working method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102064395B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102801001A (en) * | 2011-05-27 | 2012-11-28 | 广西鑫百纳电气有限公司 | Management system for temporary grounding wire |
CN104422813A (en) * | 2013-09-06 | 2015-03-18 | 珠海优特电力科技股份有限公司 | Direct-current electroscope and working method thereof |
CN104505688A (en) * | 2014-12-12 | 2015-04-08 | 国家电网公司 | Operation method and device of grounding wire |
CN105044542A (en) * | 2015-08-04 | 2015-11-11 | 国网上海市电力公司 | State automatic detection method of temporary grounding line of electrical equipment |
CN105044558A (en) * | 2015-08-04 | 2015-11-11 | 国网上海市电力公司 | Electrical equipment temporary grounding wire system based on multi-agent technology |
CN109326898A (en) * | 2018-11-23 | 2019-02-12 | 国网江苏省电力有限公司宝应县供电分公司 | A kind of temporary earthing device |
CN110198027A (en) * | 2019-06-04 | 2019-09-03 | 国家电网有限公司 | Ground wire in substation real-time acquisition device |
CN112285614A (en) * | 2020-10-15 | 2021-01-29 | 珠海优特电力科技股份有限公司 | Method, device and system for monitoring grounding hanging position and state |
CN112736502A (en) * | 2020-12-02 | 2021-04-30 | 辽宁拓新电力电子有限公司 | Temporary grounding wire device |
CN113629416A (en) * | 2021-08-11 | 2021-11-09 | 珠海优特电力科技股份有限公司 | Intelligent grounding lock, ground wire pile and ground wire management system |
CN115450497A (en) * | 2022-08-16 | 2022-12-09 | 珠海优特电力科技股份有限公司 | Ground wire pile lock and ground wire lockset |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003230207A (en) * | 2002-01-31 | 2003-08-15 | Sumitomo Densetsu Corp | Detection grounding tool |
CN200986978Y (en) * | 2006-10-26 | 2007-12-05 | 珠海优特电力科技股份有限公司 | Earthing clip |
CN201054431Y (en) * | 2006-10-26 | 2008-04-30 | 珠海优特电力科技股份有限公司 | A ground cable clamper |
CN101170224A (en) * | 2006-10-26 | 2008-04-30 | 珠海优特电力科技股份有限公司 | A mistaken lock prevention ground line control system and control method |
CN101651293A (en) * | 2009-08-17 | 2010-02-17 | 河南省电力公司平顶山供电公司 | Real-time monitoring and management system of digital grounding wire |
CN201549936U (en) * | 2009-11-17 | 2010-08-11 | 珠海优特电力科技股份有限公司 | Grounding wire device |
-
2009
- 2009-11-17 CN CN 200910226346 patent/CN102064395B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003230207A (en) * | 2002-01-31 | 2003-08-15 | Sumitomo Densetsu Corp | Detection grounding tool |
CN200986978Y (en) * | 2006-10-26 | 2007-12-05 | 珠海优特电力科技股份有限公司 | Earthing clip |
CN201054431Y (en) * | 2006-10-26 | 2008-04-30 | 珠海优特电力科技股份有限公司 | A ground cable clamper |
CN101170224A (en) * | 2006-10-26 | 2008-04-30 | 珠海优特电力科技股份有限公司 | A mistaken lock prevention ground line control system and control method |
CN101651293A (en) * | 2009-08-17 | 2010-02-17 | 河南省电力公司平顶山供电公司 | Real-time monitoring and management system of digital grounding wire |
CN201549936U (en) * | 2009-11-17 | 2010-08-11 | 珠海优特电力科技股份有限公司 | Grounding wire device |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102801001A (en) * | 2011-05-27 | 2012-11-28 | 广西鑫百纳电气有限公司 | Management system for temporary grounding wire |
CN104422813A (en) * | 2013-09-06 | 2015-03-18 | 珠海优特电力科技股份有限公司 | Direct-current electroscope and working method thereof |
CN104422813B (en) * | 2013-09-06 | 2018-01-05 | 珠海优特电力科技股份有限公司 | DC electroscope and its method of work |
CN104505688A (en) * | 2014-12-12 | 2015-04-08 | 国家电网公司 | Operation method and device of grounding wire |
CN104505688B (en) * | 2014-12-12 | 2017-02-22 | 国家电网公司 | Operation method and device of grounding wire |
CN105044542A (en) * | 2015-08-04 | 2015-11-11 | 国网上海市电力公司 | State automatic detection method of temporary grounding line of electrical equipment |
CN105044558A (en) * | 2015-08-04 | 2015-11-11 | 国网上海市电力公司 | Electrical equipment temporary grounding wire system based on multi-agent technology |
CN105044542B (en) * | 2015-08-04 | 2017-10-27 | 国网上海市电力公司 | A kind of temporary ground wire state self checking method of power equipment |
CN109326898A (en) * | 2018-11-23 | 2019-02-12 | 国网江苏省电力有限公司宝应县供电分公司 | A kind of temporary earthing device |
CN109326898B (en) * | 2018-11-23 | 2024-01-23 | 国网江苏省电力有限公司宝应县供电分公司 | Temporary grounding device |
CN110198027A (en) * | 2019-06-04 | 2019-09-03 | 国家电网有限公司 | Ground wire in substation real-time acquisition device |
CN110198027B (en) * | 2019-06-04 | 2021-09-07 | 国家电网有限公司 | Real-time acquisition device for ground wire of transformer substation |
CN112285614A (en) * | 2020-10-15 | 2021-01-29 | 珠海优特电力科技股份有限公司 | Method, device and system for monitoring grounding hanging position and state |
CN112736502A (en) * | 2020-12-02 | 2021-04-30 | 辽宁拓新电力电子有限公司 | Temporary grounding wire device |
CN112736502B (en) * | 2020-12-02 | 2024-01-16 | 辽宁拓新电力电子有限公司 | Temporary grounding wire device |
CN113629416A (en) * | 2021-08-11 | 2021-11-09 | 珠海优特电力科技股份有限公司 | Intelligent grounding lock, ground wire pile and ground wire management system |
CN113629416B (en) * | 2021-08-11 | 2023-09-22 | 珠海优特电力科技股份有限公司 | Intelligent grounding lock, ground wire pile and ground wire management system |
CN115450497A (en) * | 2022-08-16 | 2022-12-09 | 珠海优特电力科技股份有限公司 | Ground wire pile lock and ground wire lockset |
CN115450497B (en) * | 2022-08-16 | 2024-05-03 | 珠海优特电力科技股份有限公司 | Ground wire pile lock and ground wire lockset |
Also Published As
Publication number | Publication date |
---|---|
CN102064395B (en) | 2013-03-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102064395B (en) | Grounding device and working method thereof | |
CN201549936U (en) | Grounding wire device | |
CN203027016U (en) | Intelligent earth wire connection device | |
CN2932404Y (en) | Distribution network failure automatic positioning system device | |
CN203773651U (en) | Manhole cover intelligent monitoring device | |
CN105866595A (en) | Intelligent and safe charging pile monitoring device | |
CN108767715A (en) | A kind of transformer substation grounding wire intelligent error preventing operates active management control system and control method | |
CN202094617U (en) | Arc light protection system | |
CN105242626A (en) | Line safety intelligent auxiliary monitoring system | |
CN203929257U (en) | Redundance type wireless temperature monitoring device | |
CN108199477B (en) | Remote intelligent monitoring method and equipment for faults of AC/DC system of transformer substation | |
CN201589832U (en) | Ground wire capable of detecting state of grounding wire in real time | |
CN203085885U (en) | Ground wire connector capable of detecting ground wire state in real time | |
CN104570007A (en) | Communication antenna anti-damage circuit of vehicle-mounted GNSS (global navigation satellite system) terminal | |
CN105449857B (en) | The anti-electric gas-tight lock system of ground control and method | |
CN104483589A (en) | Detecting device and method for four-tongue grounding wire | |
CN103279098A (en) | Electrical equipment monitoring device based on image identification | |
CN202815883U (en) | Positioning and real-time monitoring system for grounding wire | |
CN204758837U (en) | Intelligence ground wire detection device | |
CN205091588U (en) | Supplementary monitoring system of circuit safety intelligence | |
CN205665562U (en) | Response monitored control system is concentrated to earth connection | |
CN205302514U (en) | Self -power smart door and window sensor | |
CN201584513U (en) | Earth wire pile with hung-line identifying functions | |
CN204215211U (en) | A kind of inspection shaft Monitoring Pinpelines micro power consumption wireless equipment based on wireless sense network | |
CN202948097U (en) | In-situ monitoring system for grounding wires |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |