CN110011419A - A kind of ground line extension tears state wireless collection shielding system and its working method open - Google Patents
A kind of ground line extension tears state wireless collection shielding system and its working method open Download PDFInfo
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- CN110011419A CN110011419A CN201910308651.XA CN201910308651A CN110011419A CN 110011419 A CN110011419 A CN 110011419A CN 201910308651 A CN201910308651 A CN 201910308651A CN 110011419 A CN110011419 A CN 110011419A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 abstract description 18
- 230000033001 locomotion Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- H02J13/0075—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Selective Calling Equipment (AREA)
Abstract
The invention discloses a kind of ground line extensions to tear wireless collection shielding system and its working method open, ground line real-time status is acquired by state of ground wire acquisition device, state of earth wire is transferred to the hard contact output device of Intelligent earth wire by wired or wireless transmission mode, the hard contact output device of Intelligent earth wire converts hard contact for collected state of ground wire data and exports, ground wire extension is depicted respectively and tears state and ground wire pile No. information open and sends anti-error host to for " 0 " and " 1 " communicated by the open and close two states that passive contact switch exports come analogue data.Both the requirement of data communication one-way transmission had been met, has in turn ensured and is physically isolated between device, communication data information high safety.
Description
Technical field
The invention belongs to electric power management system field, be related to a kind of ground line extension tear open state wireless collection shielding system and its
Working method.
Background technique
Electric power temporary ground wire is a kind of power generation safety appliance.Since it is with low in cost, principle is simple and reliable,
Using the advantages that convenient is operated, it is widely used in the inspection operation of power equipment at present, for the equipment or line to maintenance
Road carries out ground protection, prevents unexpected send a telegram here from causing personal injury or equipment damage.But just due to temporary ground wire mounting
The property taken and provisional, it is easy to which the leakage that temporary ground wire occurs is hung or situation is torn in leakage open, so as to cause human casualty accident generation.It wants
Prevent or prevent the occurrence of violating the regulations from technological means, it is important to reliably realize that temporary ground wire mounts/dismounting state
Automatic collection.According to the mounting of temporary ground wire/dismounting state and anti-mis-logical, computer anti-misoperation and lockout technology can be passed through
Means prevent the leakage extension of temporary ground wire or leakage from tearing open, so as to prevent the hair of misoperation fault relevant to temporary ground wire
It is raw.
It is current to realize that temporary ground wire mounts/removes the automatic collection of state and is with method often: by acquisition controller with
Anti-error host is connected and communicates, and realizes the transmission of state of ground wire data, i.e., directly carries out between acquisition controller and anti-error host
Data interaction.The shortcomings that this system and method is that system is unable to reach high security requirement in terms of the network information security.Therefore
Consider from the network information security, proposes that a kind of inexpensive, highly reliable grounding line extension tears wireless collection shielding system and its work open
Method.
Summary of the invention
The present invention provides a kind of ground line extension and tears wireless collection shielding system, including the hard contact of anti-error host, Intelligent earth wire open
The hard contact output device of input unit, Intelligent earth wire, state of ground wire acquisition device, the state of ground wire acquisition device are linear by ground
State data are transferred to the hard contact output device of the Intelligent earth wire, and the hard contact output device of Intelligent earth wire will collectedly
Line status data is converted into hard contact output, and the hard contact input device of Intelligent earth wire is received to be connect firmly from the Intelligent earth wire
The state of ground wire data of point output device, and state of ground wire data are transferred to the anti-error host.
Ground line extension according to the present invention tears wireless collection shielding system open, and the state of ground wire data include that ground wire extension tears shape open
State data and ground wire pile No. information data.
Ground line extension according to the present invention tears wireless collection shielding system open, and the hard contact input device of Intelligent earth wire includes
Ground wire extension tears state open entry loop terminal and ground wire pile No. information open entry loop terminal open, acquires defeated by the hard contact of the Intelligent earth wire
The ground wire extension that device provides out tears state and ground wire pile No. information data open.
Ground line extension according to the present invention tears wireless collection shielding system open, and the hard contact output device of Intelligent earth wire includes
The ground wire extension state of tearing open outputs loop terminals and ground wire pile No. information outputs loop terminals.
Ground line extension according to the present invention tears wireless collection shielding system open, and ground wire hangs the state of tearing open and outputs circuit and ground wire pile No.
Information outputs circuit using passive contact switch.
Ground line according to the present invention extension tears wireless collection shielding system open, the passive contact switch include driving coil,
Electromagnetic module and passive opening and closing contact.
Ground line extension according to the present invention tears wireless collection shielding system, the driving coil and the passive opening and closing contact open
Physical isolation.
Ground line extension according to the present invention tears wireless collection shielding system open, and the hard contact output device of Intelligent earth wire uses
1 extension that ground wire is described without source contact without any one in source contact to 6 tears state open.
Ground line extension according to the present invention tears wireless collection shielding system open, and the hard contact output device of Intelligent earth wire uses
3 extensions that ground wire is described without source contact tear state open.
Ground line extension according to the present invention tears wireless collection shielding system open, and the hard contact output device of Intelligent earth wire uses
At least 6 describe ground wire pile No. information without source contact.
Ground line extension according to the present invention tears wireless collection shielding system open, and the hard contact output device of Intelligent earth wire uses
12 describe ground wire pile No. information without source contact.
The present invention also provides a kind of ground line extensions to tear wireless collection shielding system working method open, including is adopted by state of ground wire
Acquisition means acquisition ground line real-time status, is transferred to Intelligent earth wire for state of earth wire by wired or wireless transmission mode and connects firmly
Point output device, the hard contact output device of Intelligent earth wire convert hard contact for collected state of ground wire data and export,
The hard contact input device of Intelligent earth wire receives the state of ground wire data from the hard contact output device of the Intelligent earth wire, and
State of ground wire data are transferred to the anti-error host, anti-mis-logical over the ground linear state of the anti-error host according to system setting
Logic judgment is carried out, alarm signal is issued to the ground wire for not meeting logical requirements.
Ground line extension according to the present invention tears wireless collection shielding system working method open, and the state of ground wire data include ground
Line extension tears status data and ground wire pile No. information data open.
Ground line extension according to the present invention tears wireless collection shielding system working method, the hard contact input of Intelligent earth wire open
Device includes that ground wire extension tears state open entry loop terminal and ground wire pile No. information open entry loop terminal open, is acquired by the Intelligent earth wire
The ground wire extension that hard contact output device provides tears state and ground wire pile No. information data open.
Ground line extension according to the present invention tears wireless collection shielding system working method, the hard contact output of Intelligent earth wire open
Device includes that ground wire hangs the state of tearing open and outputs loop terminals and ground wire pile No. information outputs loop terminals.
Ground line according to the present invention extension tears wireless collection shielding system working method open, ground wire hang the state of tearing open output circuit and
Ground wire pile No. information outputs circuit using passive contact switch.
Ground line extension according to the present invention tears wireless collection shielding system working method open, and the passive contact switch includes driving
Moving winding, electromagnetic module and passive opening and closing contact.
Ground line according to the present invention extension tears wireless collection shielding system working method open, the driving coil and described passive
It is opened and closed contact physical isolation.
Ground line extension according to the present invention tears wireless collection shielding system working method, the hard contact output of Intelligent earth wire open
The extension that device describes ground wire without source contact without any one in source contact to 6 using 1 tears state open.
Ground line extension according to the present invention tears wireless collection shielding system working method, the hard contact output of Intelligent earth wire open
Device tears state open without source contact using 3 to describe the extension of ground wire.
Ground line extension according to the present invention tears wireless collection shielding system working method, the hard contact output of Intelligent earth wire open
Device describes ground wire pile No. information without source contact using at least 6.
Ground line extension according to the present invention tears wireless collection shielding system working method, the hard contact output of Intelligent earth wire open
Device describes ground wire pile No. information without source contact using 12.
Beneficial effects of the present invention:
Technical solution of the present invention is applied to be had on mounting/dismounting condition detecting system of intelligent management temporary ground wire
Clearly the advantages of.The system structure simplifies, and part is reduced, and circuit is reliably easily realized, the state of ground wire data of acquisition are turned
Turn to the output of hard contact, " 0 " that is communicated by open and close two states that passive contact switch exports come analogue data and
" 1 " ground wire extension is depicted respectively and tears state and ground wire pile No. information open and sends anti-error host to.Both it is unidirectional data communication had been met
Transmission requirement in turn ensures and is physically isolated between device, communication data information high safety.Technical solution of the present invention can also answer
Physically-isolated state-detection occasion is needed used in other.
Detailed description of the invention
Fig. 1 ground line, which is hung, tears state wireless collection shielding system architecture diagram open;
Fig. 2 ground line, which is hung, tears state wireless collection shielding system work flow diagram open;
The passive contact switch internal structure chart of Fig. 3.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that embodiment be merely to illustrate the present invention without
For limiting the scope of the invention.Furthermore, it is to be understood that after having read content disclosed in this invention, this field skill
Art personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within protection scope defined by the present invention
Within.
State of ground wire acquisition system acquires ground wire real-time status by state of ground wire acquisition device with wireless transmission method, and
State of ground wire data are transferred to the hard contact output device of Intelligent earth wire by wired or wireless transmission mode.Intelligent earth wire connects firmly
Point output device is rack device, is equipped with front panel and postposition panel, and front panel is equipped with LED display, is used to indicate
System mode, power supply status, communication state and output state without source contact, postposition panel be equipped with DC24V power input terminal,
The state of tearing open outputs loop terminals to line extension, ground wire pile No. information outputs loop terminals, system mode open entry loop terminal, and
RS485 communication terminal, RS232 communication terminal and RS422 communication terminal.The hard contact output device of Intelligent earth wire is additionally provided with MCU number
According to processing unit.The hard contact output device input 24V direct current of Intelligent earth wire works for device hardware circuit.
The ground wire extension state of tearing open outputs circuit and ground wire pile No. information is outputed circuit and designed using passive contact switch.According to figure
3, passive contact switch includes driving coil, electromagnetic module and passive opening and closing contact, and hardware circuit is issued to driving coil and driven
After pulse voltage, driving coil generates electromotive force, the electromagnetic field effect that electromotive force changes to electromagnetic module, and electromagnetic module drives nothing
Source is opened and closed the movable contact movement in contact, open and close two states is exported, to realize the description of data 0 and 1.It is passive to connect
It is physically-isolated for putting between switch internal driving coil and passive opening and closing contact, and the two cannot directly transmit data-signal, only
After driving coil can be passed through by voltage drive, the electromotive force of generation is changed into electromagnetic field and is applied to electromagnetic module to drive out
The passive opening and closing contact movement in portion inside the Pass, realizes data one-way transmission, guarantees system data information high security.
System mode open entry loop is designed using optical coupling isolation circuit, acquires the work of the hard contact input device of Intelligent earth wire
State.The hard contact output device of Intelligent earth wire is obtained by RS485 communication terminal, RS232 communication terminal, RS422 communication terminal
The state of ground wire data that state of ground wire acquisition device provides.And by the MCU data processing unit of apparatus system to state of ground wire
Data are handled, and MCU data processing unit issues driving instruction according to state of ground wire data, and control drive circuit module makes nothing
Source contact switch motion is consistent passive contact switch output state with state of ground wire data.Such as obtain 1 state of ground wire
Data are 001, then the output state after the movement of passive contact switch respectively corresponds as closure, closure, off-state.
The hard contact input device of Intelligent earth wire is rack device, is equipped with front panel and postposition panel, preposition face
Plate is equipped with LED display, is used to indicate system mode, power supply status and communication state, it is defeated that postposition panel is equipped with AC220V power supply
Enter terminal, DC24V output terminal, ground wire extension and tears state open entry loop terminal, ground wire pile No. information open entry loop terminal, system work open
Make state output loop terminals, ethernet communication interface, RS485 communication terminal, RS232 communication terminal, RS422 communication terminal with
And wireless communication antenna interface.The hard contact input device input AC220V power supply of Intelligent earth wire works for device hardware circuit, and
DC24V, which is exported, by terminal supplies the hard contact output device of Intelligent earth wire.Ground wire extension tears state open entry loop and ground wire pile No. letter open
Open entry loop is ceased to design using optical coupling isolation circuit, the ground wire that the hard contact output device of acquisition Intelligent earth wire provides hang state of tearing open and
Ground wire pile No. information data.Working state of system output loop is retouched using relay design by two-way relay output loop
Four working conditions for stating the hard contact output device system of Intelligent earth wire, are respectively as follows: normal operation, misoperation, system reset
It is reset with system data.The hard contact input device of Intelligent earth wire collects ground wire extension and tears state open and ground wire pile No. information data passes through
Ethernet communication is transferred to anti-error host.
According to the anti-mis-logical that system is arranged, line extension tears state open to anti-error host over the ground and ground wire pile No. information carries out logic and sentences
It is disconnected, and Real-time image display ground wire extension tears state and ground wire pile No. information open, issues alarm signal to the ground wire for not meeting logical requirements
Number, remind operator to carry out defect elimination processing.Only ground wire extension tears state open and ground wire pile No. information complies fully with anti-error host system
It unites after the anti-error logical requirements of setting, ground wire extension tears operation task open and just calculates completion.
The hard contact output device of Intelligent earth wire describes the extension of ground wire using 1 to 6 without any one in source contact
Tear state open, selectable, the hard contact output device of Intelligent earth wire tears state open without source contact using 3 to describe the extension of ground wire, the
One passive contact state indicates enabled and outputs ground wire pile No., and rear two passive contact states indicate that ground wire extension tears state open, specifically
Shown in being described as follows:
000 expression ground wire is to tear state open;
001 indicates that ground wire is extension state, and ground wire pile No. is constant;
010 indicates that ground wire is extension state, and ground wire pile No. is constant;
011 indicates that state of ground wire is abnormal;
100 expression ground wires are to tear state open;
101 indicate that ground wire is extension state, and ground wire pile No. changes;
110 indicate that ground wire is extension state, and ground wire pile No. changes;
111 indicate that state of ground wire is abnormal.
The hard contact output device of Intelligent earth wire describes ground wire pile No. information without source contact using at least 6, selectable,
The hard contact output device of Intelligent earth wire describes ground wire pile No. information without source contact using 12, can at most describe 4096 ground
Line pile No..The isolation acquisition that earth wire hangs state of tearing open is realized by above system and its working method, is being grounded line
While condition intelligentization manages, the network information security is improved.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (22)
1. a kind of ground line extension tears wireless collection shielding system, including the hard contact input device of anti-error host, Intelligent earth wire, intelligence open
State of ground wire data are transferred to by the hard contact output device of ground wire, state of ground wire acquisition device, the state of ground wire acquisition device
The hard contact output device of Intelligent earth wire, the hard contact output device of Intelligent earth wire turn collected state of ground wire data
Hard contact output is turned to, the hard contact input device of Intelligent earth wire is received from the hard contact output device of the Intelligent earth wire
State of ground wire data, and state of ground wire data are transferred to the anti-error host.
2. ground line extension according to claim 1 tears wireless collection shielding system open, which is characterized in that the state of ground wire number
Status data and ground wire pile No. information data are torn open according to including ground wire extension.
3. ground line extension according to claim 2 tears wireless collection shielding system open, which is characterized in that the Intelligent earth wire is hard
Contact input device includes that ground wire extension tears state open entry loop terminal and ground wire pile No. information open entry loop terminal open, is acquired by described
The ground wire extension that the hard contact output device of Intelligent earth wire provides tears state and ground wire pile No. information data open.
4. ground line according to claim 2 or 3 extension tears wireless collection shielding system open, which is characterized in that it is described intelligently
The hard contact output device of line includes that ground wire hangs the state of tearing open and outputs loop terminals and ground wire pile No. information outputs loop terminals.
5. ground line extension according to claim 4 tears wireless collection shielding system open, which is characterized in that ground wire is hung the state of tearing open and opened
Circuit and ground wire pile No. information output circuit using passive contact switch out.
6. ground line extension according to claim 5 tears wireless collection shielding system open, which is characterized in that the no source contact is opened
Close includes driving coil, electromagnetic module and passive opening and closing contact.
7. ground line according to claim 6 extension tears wireless collection shielding system open, which is characterized in that the driving coil and
The passive opening and closing contact physical isolation.
8. the extension of ground line described in any one of -7 tears wireless collection shielding system open according to claim 1, which is characterized in that described
The hard contact output device of Intelligent earth wire tears state open without source contact to 6 using 1 to describe the extension of ground wire.
9. ground line extension according to claim 1 to 8 tears wireless collection shielding system open, which is characterized in that described
The hard contact output device of Intelligent earth wire tears state open without source contact using 3 to describe the extension of ground wire.
10. ground line extension according to claim 1 to 9 tears wireless collection shielding system open, which is characterized in that institute
It states the hard contact output device of Intelligent earth wire and describes ground wire pile No. information without source contact using at least 6.
11. ground line extension according to claim 1 to 10 tears wireless collection shielding system open, which is characterized in that institute
It states the hard contact output device of Intelligent earth wire and describes ground wire pile No. information without source contact using 12.
12. a kind of ground line extension tears wireless collection shielding system working method open, including is connect by the acquisition of state of ground wire acquisition device
State of earth wire is transferred to the hard contact output device of Intelligent earth wire by wired or wireless transmission mode by ground wire real-time status,
The hard contact output device of Intelligent earth wire converts hard contact for collected state of ground wire data and exports, the Intelligent earth wire
Hard contact input device receives the state of ground wire data from the hard contact output device of the Intelligent earth wire, and the ground is linear
State data are transferred to anti-error host, and the anti-error host according to the anti-mis-logical that system is arranged, sentence over the ground by linear state progress logic
It is disconnected, alarm signal is issued to the ground wire for not meeting logical requirements.
13. ground line extension according to claim 12 tears wireless collection shielding system working method open, which is characterized in that described
State of ground wire data include that ground wire extension tears status data and ground wire pile No. information data open.
14. ground line extension according to claim 13 tears wireless collection shielding system working method open, which is characterized in that described
The hard contact input device of Intelligent earth wire includes that ground wire extension tears state open entry loop terminal and ground wire pile No. information open entry loop terminal open,
The ground wire extension that acquisition is provided by the hard contact output device of the Intelligent earth wire tears state and ground wire pile No. information data open.
15. the extension of ground line described in 3 or 14 tears wireless collection shielding system working method open according to claim 1, which is characterized in that
The hard contact output device of Intelligent earth wire includes that ground wire hangs the state of tearing open and outputs loop terminals and ground wire pile No. information outputs circuit
Terminal.
16. ground line extension according to claim 15 tears wireless collection shielding system working method open, which is characterized in that ground wire
The extension state of tearing open outputs circuit and ground wire pile No. information outputs circuit using passive contact switch.
17. ground line extension according to claim 16 tears wireless collection shielding system working method open, which is characterized in that described
Passive contact switch includes driving coil, electromagnetic module and passive opening and closing contact.
18. ground line extension according to claim 17 tears wireless collection shielding system working method open, which is characterized in that described
Driving coil and the passive opening and closing contact physical isolation.
19. the extension of ground line described in any one of 2-18 tears wireless collection shielding system working method open according to claim 1, special
Sign is that the hard contact output device of Intelligent earth wire tears state open without source contact to 6 using 1 to describe the extension of ground wire.
20. the extension of ground line described in any one of 2-19 tears wireless collection shielding system working method open according to claim 1, special
Sign is that the hard contact output device of Intelligent earth wire tears state open without source contact using 3 to describe the extension of ground wire.
21. the extension of ground line described in any one of 2-20 tears wireless collection shielding system working method open according to claim 1, special
Sign is that the hard contact output device of Intelligent earth wire describes ground wire pile No. information without source contact using at least 6.
22. the extension of ground line described in any one of 2-21 tears wireless collection shielding system working method open according to claim 1, special
Sign is that the hard contact output device of Intelligent earth wire describes ground wire pile No. information without source contact using 12.
Priority Applications (1)
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CN201910308651.XA CN110011419B (en) | 2019-04-17 | 2019-04-17 | Wireless acquisition isolation system in ground wire hanging and detaching state and working method thereof |
Applications Claiming Priority (1)
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CN201910308651.XA CN110011419B (en) | 2019-04-17 | 2019-04-17 | Wireless acquisition isolation system in ground wire hanging and detaching state and working method thereof |
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CN110011419A true CN110011419A (en) | 2019-07-12 |
CN110011419B CN110011419B (en) | 2023-09-22 |
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CN113820631A (en) * | 2021-08-23 | 2021-12-21 | 珠海优特电力科技股份有限公司 | Intelligent ground wire hanging and dismounting state recognition device and recognition method thereof |
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CN110011419B (en) | 2023-09-22 |
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