CN107749668A - A kind of operation field is grounded wire management device - Google Patents
A kind of operation field is grounded wire management device Download PDFInfo
- Publication number
- CN107749668A CN107749668A CN201711115435.0A CN201711115435A CN107749668A CN 107749668 A CN107749668 A CN 107749668A CN 201711115435 A CN201711115435 A CN 201711115435A CN 107749668 A CN107749668 A CN 107749668A
- Authority
- CN
- China
- Prior art keywords
- housing
- main control
- management device
- identifier
- control computer
- 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.)
- Pending
Links
- 238000004891 communication Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005283 ground state Effects 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H02J13/0075—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A kind of operation field ground connection wire management device provided by the invention, it is intended to solve the technical problem that the technical staff of execute-in-place in the prior art can not obtain ground connection state at any time.A kind of operation field ground connection wire management device provided by the invention, identifier easily earth wire can be identified, then, main control computer and upper machine communication, the ground state for the ground wire that host computer identifies identified device is sent to main control computer, and shown by display, technical staff can intuitively observe the ground state of ground wire, so that when technical staff operates at the scene, the ground state of ground wire can be understood at any time, be advantageous to technical staff and carry out associative operation, and then improve the unfailing performance of power network.Main control computer is communicated with host computer by wireless communication mode, and main control computer is easy to carry, optimizes the performance of ground connection wire management device.
Description
Technical field
The present invention relates to power network health check tool, more particularly to a kind of operation field ground connection wire management device, belong to power network neck
Domain.
Background technology
Ground wire, it is a kind of wire of power transmission line ground connection, is mainly used in being grounded power network during grid maintenance, ensures maintenance
The personal safety of personnel.In normal operation, ground wire should be disconnected power network, and power network event is caused to avoid power network ground short circuit
Barrier.
In the prior art to improve the unfailing performance of power network, the ground state of ground wire by host computer unified monitoring, on
Position machine can be computer, and the detector of detection ground connection state is configured with ground wire, and detector leads to host computer
News, in favor of the ground state of technical staff's intuitively monitoring grounding wire.But the combined floodgate of power distribution network or sub-switching operation be by
What technical staff operated at the scene, at this time the actual personnel operated at the scene are difficult the ground state for judging ground wire, unfavorable
Associative operation is carried out in technical staff.
The content of the invention
A kind of operation field ground connection wire management device provided by the invention, it is intended to solve the skill of execute-in-place in the prior art
Art personnel can not obtain the technical problem of ground connection state at any time.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that:A kind of operation field ground connection wire management dress
Put, including the identifier of identification ground wire, the host computer with the main control computer of identifier communication and with main control computer communication, it is described upper
Machine is communicated with main control computer by wireless communication mode, and the identifier is communicated with the main control computer by communication cable, the master
Control machine includes housing, display, the processor and battery being arranged in housing, and the processor, display and identifier are equal
By the storage battery power supply, the button whether control battery exports electric energy is additionally provided with the housing, in the housing
The communicator for realizing processor and upper machine communication is inside additionally provided with, the communicator is by the storage battery power supply, in the shell
Indicator lamp is additionally provided with body, the indicator lamp is by storage battery power supply, also, the indicator lamp is worked by button control;It is described
Identifier includes the switch of control identifier work.
A kind of operation field ground connection wire management device provided by the invention, identifier easily can be known earth wire
Not, then, main control computer and upper machine communication, the ground state for the ground wire that host computer identifies identified device are sent to master control
Machine, and shown by display, technical staff can intuitively observe the ground state of ground wire, so that technical staff
When operating at the scene, the ground state of ground wire can be understood at any time, be advantageous to technical staff and carried out associative operation, and then improve
The unfailing performance of power network.Main control computer is communicated with host computer by wireless communication mode, and main control computer is easy to carry, optimizes ground connection
The performance of wire management device.
A kind of optional scheme, the display mouth for facilitating look at display is set on the housing, set on the housing
The transparent panel for closing the display mouth is equipped with, is provided with the holding tank for accommodating the transparent panel on the housing, it is described transparent
Plate is adhered in the holding tank.
The setting of transparent plate can be effectively prevented from display and be damaged, extend aobvious mainly for the protection of display
Show the service life of device.
A kind of optional scheme, the identifier are scanner, and the identifier includes handle, and the switch passes through screw
It is fixed on the handle, is fixed with the shackle member of handle described in clamping, the shackle member and institute on the housing by screw
State and elasticity layer is set between handle, the elastic layer is adhered in the shackle member.
The setting of shackle member is mainly used in fixing identifier, and identifier can be conveniently fixed on housing, is grounded spool
Reason device is easy to carry.
The retainer ring of the fixed communication cable is provided with a kind of optional scheme, the housing and the handle,
The communication cable is wound in the retainer ring, and the retainer ring on housing and the housing are integral type structure, are located at
Retainer ring and the handle on handle are integral type structure.
The setting of retainer ring is mainly used in communication cable around the home, protects the joint of communication cable not pullled and loosened,
Optimize the performance of ground connection wire management device.
A kind of optional scheme, the charging inlet to battery charging, the charging inlet are additionally provided with the housing
It is connected with the battery and conductive, the resilient plug for closing the charging inlet, the resilient plug is additionally provided with the housing
Fixed on the housing by flexible filaments.
The setting of resilient plug, to avoid charging inlet from being blocked by debris, optimizes ground connection mainly for the protection of charging inlet
The performance of wire management device.
A kind of optional scheme, the housing include upper shell and lower house, and the upper shell passes through screw with lower house
It is fixed together, sealing gasket is provided between the upper shell and the lower house, the sealing gasket is adhered to the lower casing
On body.
It is grounded wire management device easy access or maintenance.
Compared with prior art, a kind of operation field ground connection wire management device provided by the invention, has the following advantages that:
1st, main control computer and upper machine communication, identifier and main control computer communicate, using can be with after identifier identification ground wire
Conveniently by the ground state of host computer inquiry ground wire, line power transmission with ground can be effectively prevented from, improves power network
Reliability.
2nd, the setting of display allows technical staff intuitively to observe, and optimizes the usability of ground connection wire management device
Energy.
3rd, main control computer and host computer are communicated by wireless communication mode, ground connection wire management device can easily carry to appoint
What position, optimize the performance of ground connection wire management device.
Brief description of the drawings
Accompanying drawing 1 is a kind of schematic diagram of operation field ground connection wire management device of the present invention;
Accompanying drawing 2 is the electrical wiring schematic diagram of main control computer.
Embodiment
Below in conjunction with the accompanying drawings, a kind of operation field ground connection wire management device of the present invention is described further.Following reality
Apply example to be only used for helping skilled in the art to understand the present invention, be not limitation of the present invention.
Term
Host computer 3, host computer 3 are configured as the ground state of management ground wire, and detection ground connection is configured with ground wire
The detector of line ground state, the detector are communicated with host computer 3, and the ground state of the ground wire is sent to host computer 3.
Main control computer 2, main control computer 2 are configured as communicating with host computer 3, also, the letter that the main control computer 2 identifies identifier 1
Breath sends and is sent the ground state being accordingly grounded to main control computer 2 according to the identification information to host computer 3, host computer 3, and this connects
The ground state of ground wire is shown by display 6.
Identifier 1, identifier 1 be configured as identification ground wire on recognizable information, and by the information of identification send to
Main control computer 2.Recognizable information on ground wire can be bar code or Quick Response Code etc..
Communicator 10, communicator 10 are configured as realizing the data transfer between main control computer 2 and host computer 3, communicator 10
For conventional structure of the prior art.
As shown in Figure 1 and Figure 2, a kind of operation field ground connection wire management device, including the identifier 1 of identification ground wire and knowledge
The main control computer 2 that other device 1 communicates and the host computer 3 with the communication of main control computer 2, the host computer 3 pass through wireless telecommunications side with main control computer 2
Formula communicates, and host computer 3 can be with main control computer 2 by 4G network communications, so that main control computer 2 can be carried easily to optional position
Without influenceing the communication between main control computer 2 and host computer 3;
The identifier 1 is communicated with the main control computer 2 by communication cable 4, and the main control computer 2 includes housing 5, display
6th, the processor 7 and battery 8 being arranged in housing 5, the processor 7, display 6 and identifier 1 are by the battery 8
Power supply, the button 9 whether control battery 8 exports electric energy is additionally provided with the housing 5, is also set up in the housing 5
There is the communicator 10 for realizing that processor 7 communicates with host computer 3, the communicator 10 is powered by the battery 8, in the housing
Indicator lamp 11 is additionally provided with 5, the indicator lamp 11 is powered by battery 8, also, the indicator lamp 11 controls work by button 9
Make, be also provided with circuit board in housing 5, processor 7, display 6, communication cable 4, battery 8, communicator 10, refer to
It is simultaneously conductive to show that lamp 11, button 9 are connected with circuit board, in favor of the maintenance and maintenance of main control computer 2.
The identifier 1 includes the switch 12 that control identifier 1 works.
As shown in figure 1, setting the display mouth for facilitating look at display 6 on the housing 5, set on the housing 5
There is the transparent panel 13 for closing the display mouth, transparent panel 13 can be armorplate glass, be provided with the housing 5 and accommodate institute
The holding tank of transparent panel 13 is stated, the transparent panel 13 is adhered in the holding tank, and transparent panel 13 is fully located in holding tank, is held
Groove of receiving communicates with the display mouth.
As shown in figure 1, the identifier 1 is scanner, the identifier 1 includes handle 14, and the switch 12 passes through spiral shell
Nail is fixed on the handle 14, is fixed with the shackle member 15 of handle 14 described in clamping, shackle member on the housing 5 by screw
15 can produce elastic deformation, and with clamping handle 14, elasticity layer 16, institute are set between the shackle member 15 and the handle 14
Elastic layer 16 is stated to be adhered in the shackle member 15.
As shown in figure 1, the retainer ring 17 of the fixed communication cable 4 is provided with the housing 5 and the handle 14,
The communication cable 4 is wound in the retainer ring 17, and the retainer ring 17 on housing 5 and the housing 5 are integral type knot
Structure, retainer ring 17 and the handle 14 on handle 14 are integral type structure.The setting of retainer ring 17 is mainly used in around the home
Communication cable 4, pullled with avoiding the joint of communication cable 4 from producing, optimize the performance of ground connection wire management device.
As shown in figure 1, the charging inlet to be charged to battery 8, the charging inlet and institute are additionally provided with the housing 5
The connection of battery 8 and conduction are stated, the resilient plug 18 for closing the charging inlet, the resilient plug are additionally provided with the housing 5
18 are fixed on the housing 5 by flexible filaments, and one end of flexible filaments is adhered on housing 5, and the other end of flexible filaments is adhered to
On resilient plug 18, to avoid resilient plug 18 from losing.
The housing 5 includes upper shell and lower house, together with the upper shell is fixed by screws in lower house, in institute
State and sealing gasket is provided between upper shell and the lower house, the sealing gasket is adhered on the lower house.Housing 5 is split
Formula structure, be advantageous to the maintenance or maintenance of main control computer 2.
The section Example of the present invention is described in detail above in association with accompanying drawing.Those skilled in the art read this theory
After bright book, based on technical scheme, above-described embodiment can be modified, these modifications still fall within the guarantor of the present invention
Protect scope.
Claims (6)
1. a kind of operation field is grounded wire management device, it is characterised in that:Identifier (1) including identification ground wire and identification
The main control computer (2) of device (1) communication and the host computer (3) with main control computer (2) communication, the host computer (3) pass through with main control computer (2)
Wireless communication mode is communicated, and the identifier (1) is communicated with the main control computer (2) by communication cable (4), the main control computer
(2) include housing (5), display (6), the processor (7) and battery (8) being arranged in housing (5), the processor (7),
Display (6) and identifier (1) are powered by the battery (8), and control battery is additionally provided with the housing (5)
(8) button (9) of electric energy whether is exported, is additionally provided with the housing (5) and realizes that processor (7) communicates with host computer (3)
Communicator (10), the communicator (10) by the battery (8) power, be additionally provided with indicator lamp on the housing (5)
(11), the indicator lamp (11) is powered by battery (8), also, the indicator lamp (11) controls work by button (9);It is described
Identifier (1) includes the switch (12) of control identifier (1) work.
A kind of 2. operation field ground connection wire management device according to claim 1, it is characterised in that:In the housing (5)
It is upper that the display mouth for facilitating look at display (6) is set, the transparent panel for closing the display mouth is provided with the housing (5)
(13) holding tank for accommodating the transparent panel (13), is provided with the housing (5), the transparent panel (13) is adhered to described
In holding tank.
A kind of 3. operation field ground connection wire management device according to claim 1, it is characterised in that:The identifier (1)
For scanner, the identifier (1) includes handle (14), and the switch (12) is fixed by screws on the handle (14),
Be fixed with the shackle member (15) of handle described in clamping (14) on the housing (5) by screw, the shackle member (15) with it is described
Elasticity layer (16) is set between handle (14), and the elastic layer (16) is adhered in the shackle member (15).
A kind of 4. operation field ground connection wire management device according to claim 3, it is characterised in that:The housing (5) and
The retainer ring (17) of the fixed communication cable (4) is provided with the handle (14), the communication cable (4) is wound on institute
State in retainer ring (17), the retainer ring (17) on housing (5) and the housing (5) are integral type structure, positioned at handle
(14) retainer ring (17) and the handle (14) on are integral type structure.
A kind of 5. operation field ground connection wire management device according to claim 1, it is characterised in that:On the housing (5)
The charging inlet to battery (8) charging is additionally provided with, the charging inlet is connected with the battery (8) and conduction, described
The resilient plug (18) for closing the charging inlet is additionally provided with housing (5), the resilient plug (18) is fixed on by flexible filaments
On the housing (5).
A kind of 6. operation field ground connection wire management device according to claim 1, it is characterised in that:Housing (5) bag
Upper shell and lower house are included, together with the upper shell is fixed by screws in lower house, in the upper shell and the lower casing
Sealing gasket is provided between body, the sealing gasket is adhered on the lower house.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711115435.0A CN107749668A (en) | 2017-11-13 | 2017-11-13 | A kind of operation field is grounded wire management device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711115435.0A CN107749668A (en) | 2017-11-13 | 2017-11-13 | A kind of operation field is grounded wire management device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107749668A true CN107749668A (en) | 2018-03-02 |
Family
ID=61251349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711115435.0A Pending CN107749668A (en) | 2017-11-13 | 2017-11-13 | A kind of operation field is grounded wire management device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107749668A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112132242A (en) * | 2020-08-10 | 2020-12-25 | 国网浙江省电力有限公司温州市洞头区供电公司 | 10kV distribution network grounding wire safety management system |
CN112862116A (en) * | 2021-01-10 | 2021-05-28 | 拓航科技有限公司 | Intelligent ground wire management device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201966695U (en) * | 2011-03-21 | 2011-09-07 | 长春市超高压局 | Monitoring and managing device for ground wire and ground disconnecting link of transformer substation |
CN204228877U (en) * | 2014-11-06 | 2015-03-25 | 西安理工大学 | Contact net maintenance hanging earthing conductor visual inspection report locating device |
CN206501094U (en) * | 2017-03-06 | 2017-09-19 | 温州电力建设有限公司 | A kind of movable transformer pack instrument intelligent storage equipment |
CN207638402U (en) * | 2017-11-13 | 2018-07-20 | 国网浙江省电力公司文成县供电公司 | A kind of operation field ground connection wire management device |
-
2017
- 2017-11-13 CN CN201711115435.0A patent/CN107749668A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201966695U (en) * | 2011-03-21 | 2011-09-07 | 长春市超高压局 | Monitoring and managing device for ground wire and ground disconnecting link of transformer substation |
CN204228877U (en) * | 2014-11-06 | 2015-03-25 | 西安理工大学 | Contact net maintenance hanging earthing conductor visual inspection report locating device |
CN206501094U (en) * | 2017-03-06 | 2017-09-19 | 温州电力建设有限公司 | A kind of movable transformer pack instrument intelligent storage equipment |
CN207638402U (en) * | 2017-11-13 | 2018-07-20 | 国网浙江省电力公司文成县供电公司 | A kind of operation field ground connection wire management device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112132242A (en) * | 2020-08-10 | 2020-12-25 | 国网浙江省电力有限公司温州市洞头区供电公司 | 10kV distribution network grounding wire safety management system |
CN112132242B (en) * | 2020-08-10 | 2022-12-13 | 国网浙江省电力有限公司温州市洞头区供电公司 | 10kV distribution network grounding wire safety management system |
CN112862116A (en) * | 2021-01-10 | 2021-05-28 | 拓航科技有限公司 | Intelligent ground wire management device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107797955A (en) | Semiconductor equipment and its operating method | |
CN103487633A (en) | Non-contact high-voltage line electroscope | |
US20120130658A1 (en) | Power quality device having communication interface | |
CN107749668A (en) | A kind of operation field is grounded wire management device | |
CN109946557A (en) | A kind of electronics ground connection hook | |
CN207638402U (en) | A kind of operation field ground connection wire management device | |
CN210985039U (en) | Lightning stroke protection device of remote centralized meter reading device | |
CN106226644A (en) | Portable earth lead uses status monitoring alarm device | |
CN105244704A (en) | Power socket with charging and wireless routing functions | |
CN109144810A (en) | A kind of self-test computer system for electronic database of information storage | |
CN204835710U (en) | Intelligent power distribution case monitored control system | |
CN208488512U (en) | A kind of automobile connector fault detection means | |
CN104992539A (en) | Intrinsic safety type wireless remote controller with controllable functions | |
CN204884116U (en) | Controllable this ampere of type wireless remote controller of function | |
CN214428572U (en) | Intelligent reclosing leakage circuit breaker capable of protecting terminal of connecting wire | |
CN213475069U (en) | Intelligent host computer is used in elevator remote monitoring based on 5G | |
CN204855605U (en) | Ammeter case of baffle can be dismantled in area | |
CN209281192U (en) | Signal conversion circuit, wireless transmission terminal and debugging apparatus | |
CN214011825U (en) | Wide-temperature weather-resistant intelligent outdoor cabinet control device | |
CN210898637U (en) | Secondary equipment anti-misoperation locking device | |
CN104422813A (en) | Direct-current electroscope and working method thereof | |
CN214100876U (en) | Battery use control device of remote monitoring equipment | |
CN208444260U (en) | A kind of computer device for preventing power failure | |
CN212872839U (en) | High-voltage comprehensive protection device based on video acquisition and data communication | |
CN211906505U (en) | Mining wireless remote control device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |