CN111917180A - Intelligent power tower monitoring system - Google Patents
Intelligent power tower monitoring system Download PDFInfo
- Publication number
- CN111917180A CN111917180A CN202010627914.6A CN202010627914A CN111917180A CN 111917180 A CN111917180 A CN 111917180A CN 202010627914 A CN202010627914 A CN 202010627914A CN 111917180 A CN111917180 A CN 111917180A
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- power tower
- display screen
- controller
- alarm
- monitoring system
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 230000005684 electric field Effects 0.000 claims abstract description 19
- 230000002159 abnormal effect Effects 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 11
- 230000006378 damage Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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- 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]
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- 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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- H02J2213/00—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation 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
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to an intelligent power tower monitoring system, which comprises: the device comprises a background control unit, a controller, an electric field inductor, a display screen, an alarm and a storage battery; the display screen is used for displaying the line information of the monitored tower; displaying an alarm state when a line fails; the electric field sensor senses the electric field condition of the monitored electric power tower and the insulation condition of the system in real time, if the electric field strength is sensed to exceed a preset threshold value, abnormal information is sent to the controller, the controller uploads the abnormal information to the background control unit, and meanwhile the controller controls the alarm device to give an alarm and controls the display screen to display the abnormal information; the background control unit and the controller can independently send the monitored power tower line information to the display screen for displaying. The system can facilitate the inspection of the power tower, greatly reduce the working time and improve the overall working efficiency to a greater extent.
Description
Technical Field
The invention relates to the technical field of power system automation, in particular to an intelligent power tower monitoring system.
Background
At present, electric power facilities in China are always in a stable, reliable and automatic level, a power grid company encourages employees to create and create themselves more vigorously, the employees contribute strength to an intelligent power grid, and meanwhile, typical products are researched and developed to replace the defects of the existing products. At present, 10kV overhead lines are still mostly used for power supply, the fixed pit filling type is still used for fixing the cement columns, the suspension type is still used for the tower line information signboard, the abrasion of the information of the plate surface is fast, inspection, operation and maintenance personnel are inconvenient to recognize, and effective alarming can not be carried out on the tower with potential safety hazards.
Chinese patent CN107680343A discloses an intelligent protection system for transmission towers, which comprises a real-time monitoring module for transmission towers, a monitoring and protection center for transmission towers and a user terminal, wherein the real-time monitoring module for transmission towers is used for acquiring the monitoring data of the transmission towers threatened, and transmitting the acquired monitoring data of the transmission towers threatened to the monitoring and protection center for transmission towers, and the monitoring and protection center for transmission towers is used for receiving, storing and displaying the monitoring data of the transmission towers threatened, comparing the monitoring data of the transmission towers threatened with the boundary value of a preset normal threshold range, and if the monitoring data exceeds the normal threshold range, outputting an alarm signal. This patent utilizes wireless sensor network technology to realize transmission tower monitoring and protection, and its control data directly transmits to the backstage to do not realize on-the-spot monitoring on-the-spot warning and show, also do not solve details when patrolling and examining on-the-spot and show etc..
Disclosure of Invention
The invention aims to overcome the defects of inconvenient field monitoring and inspection of the power tower in the prior art, and provides an intelligent power tower monitoring system.
The system comprises: the device comprises a background control unit, a controller, an electric field inductor, a display screen, an alarm and a storage battery;
the storage battery supplies power for the controller, the electric field inductor, the display screen and the alarm;
the display screen is used for displaying the line information of the monitored tower; displaying an alarm state when a line fails;
the electric field sensor senses the electric field condition of the monitored electric power tower and the insulation condition of the system in real time, if the electric field strength is sensed to exceed a preset threshold value, abnormal information is sent to the controller, the controller uploads the abnormal information to the background control unit, and meanwhile the controller controls the alarm device to give an alarm and controls the display screen to display the abnormal information;
the background control unit and the controller can independently send the monitored power tower line information to the display screen for displaying.
Preferably, the priority of the background control unit sending the monitored power tower line information to the display screen for display is higher than the priority of the controller sending the monitored power tower line information to the display screen for display.
Preferably, the system further comprises a photovoltaic module, the photovoltaic module firstly supplies power to the system, and the storage battery is charged under the condition that the power supply of the system is met.
Preferably, the system further comprises securing means for securing the photovoltaic module to the monitored power tower.
Preferably, the fixing device is a lock catch, and the photovoltaic module is fixed on the lock catch.
Preferably, the outer surface of the lock catch is sprayed with insulating paint.
Preferably, the outer surface of the lock catch is sleeved with insulating anti-slip silica gel.
Preferably, the system further comprises an insulated tension cable having one end secured to the latch and the other end for securing to the ground.
Preferably, the line information of the monitored tower displayed by the display screen comprises: the number of the monitored tower, the name of the power supply user, the service condition of the line disconnecting link, the line direction and the contact way.
Preferably, the alarm is a buzzer alarm.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that: the system can facilitate the inspection of the power tower; the relevant condition of the power tower can be displayed on site; meanwhile, each power tower provided with the system is monitored in real time by utilizing the background control unit to form an intelligent power tower system, so that the secondary protection effect is achieved, the working time is greatly reduced, and the overall working efficiency is improved to a greater extent.
Drawings
Fig. 1 is a schematic diagram of an intelligent power tower monitoring system according to embodiment 1.
FIG. 2 is a schematic view of an intelligent power tower monitoring system assembly.
Fig. 3 is a schematic view of the latch.
In the figure: 1-background control unit, 2-controller, 3-electric field inductor, 4-display screen, 5 storage battery, 6-alarm, 7-photovoltaic module, 8-lock catch, 9-insulating tension steel rope and 10-tower.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
The embodiment provides an intelligent power tower monitoring system. As shown in fig. 1-3, the system comprises: the device comprises a background control unit 1, a lock catch 8, an insulating tensioning steel rope 9, a photovoltaic module 7, a display screen 4, a controller 2, an electric field inductor 3, an alarm 6 and a storage battery 5.
The background control unit 1 can be manually controlled and monitors any one of the towers 10 in real time, and can manually control the display content on the display screen 44, when special conditions such as equipment failure, line fault, tower 10 power leakage or manual damage occur to the target tower 10, the controller 2 of the tower 10 immediately sends alarm information to the background control unit 1, the background control unit 1 can send related instructions or cancel alarms to the target tower 10 at any time, and after an operator catches up to the site to complete the site inspection operation and maintenance work, the related task instructions on the display screen 4 can be cancelled, and the display screen 4 is recovered to display the line information of the tower 10;
the controllers 2 are allocated by the background control unit 1, each tower 10 has the same type of controller 2, when a certain fault exists, the controller 2 can send alarm information to the background control unit 1, meanwhile, the background control unit 1 can also artificially track and position the target tower 10 in real time, and can send related instructions to the tower 10 operator to the display screen 4;
the electric field controller 2 is responsible for detecting whether dangerous current exists in the current environment, when the insulation of the device is lowered or the tower 10 has an electric leakage condition which is enough to endanger human bodies, the alarm 6 gives an alarm, and meanwhile, the display screen 4 is switched into an alarm state;
the photovoltaic module is characterized in that the lock catch 8 is an insulating lock catch 8, the lock catch 8 is formed by pressing two parts which are made of steel materials, insulating paint is sprayed on the outer surface of the lock catch 8, a layer of anti-skidding insulating silica gel is sleeved on the outer surface of the lock catch 8, a relatively insulating state is formed on the basis of ensuring the strength, and meanwhile, an adjustable round hole is formed in one lock catch 8 and used for realizing the hinge joint of the photovoltaic module and the lock catch; the function of angle adjustment is provided for the installation of the photovoltaic module 7;
meanwhile, the device is matched with the insulating tensioning steel rope 9, when the tower 10 is fixed in a buried mode in a traditional mode, the device is used for secondary semi-rigid fixation, and certain deformation is allowed to exist while the strength and the rigidity are guaranteed, so that the device is not easy to damage;
the photovoltaic module 7 provides a stable power supply environment for the system, when the photovoltaic module 7 absorbs light energy and converts the light energy into electric energy, a power supply is firstly provided for the system, and a charging mode is performed on the storage battery 5 under the condition that the requirement of the power supply of the equipment is met, so that the device is ensured to have continuous power supply output within 24 hours;
the display screen 4 displays the related information of the line of the tower 10 under the conventional condition, such as the tower 10 is a tower 10 with several numbers in a certain line, the transformer provides power supply, line disconnecting link and other related equipment use condition, line direction, contact way and other related information for a certain enterprise, when a line fault occurs, the display screen 4 is immediately switched to an alarm state, and meanwhile, the background control unit can also send related instructions to the alarm state;
the controller 2 can independently control the content of the display screen 4, send related content instructions to the display screen 4 according to different conditions, and meanwhile, the controller 2 on each tower 10 is allocated by the background control unit 1 and can be preferentially controlled by the background when special conditions occur;
the electric field sensor 3 can sense the current electric field condition of the tower 10 in real time, if the system has insulation performance reduction or electric leakage condition which is enough to harm human body, namely the system senses that the electric field strength exceeds a preset threshold value, abnormal information is sent to the controller 2, the controller 2 uploads the abnormal information to the background control unit 1, and meanwhile, the controller 2 controls the alarm device to give an alarm and controls the display screen 4 to display the abnormal information; the system provides secondary guarantee and early warning functions for operation personnel who inspect the tower 10 in operation and maintenance, guarantees personal safety of the operation personnel and passers-by close to the dangerous tower 10, and improves overall reliability.
The terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An intelligent power tower monitoring system, the system comprising: the device comprises a background control unit, a controller, an electric field inductor, a display screen, an alarm and a storage battery;
the storage battery supplies power for the controller, the electric field inductor, the display screen and the alarm;
the display screen is used for displaying the line information of the monitored tower; displaying an alarm state when a line fails;
the electric field sensor senses the electric field condition of the monitored electric power tower and the insulation condition of the system in real time, if the electric field strength is sensed to exceed a preset threshold value, abnormal information is sent to the controller, the controller uploads the abnormal information to the background control unit, and meanwhile the controller controls the alarm device to give an alarm and controls the display screen to display the abnormal information;
the background control unit and the controller can independently send the monitored power tower line information to the display screen for displaying.
2. The intelligent power tower monitoring system of claim 1, wherein the priority of the background control unit sending the monitored power tower line information to the display screen for display is higher than the priority of the controller sending the monitored power tower line information to the display screen for display.
3. The intelligent power tower monitoring system of claim 2, further comprising a photovoltaic module that first powers the system and charges a battery if the system power is met.
4. An intelligent power tower monitoring system according to claim 3, further comprising securing means for securing the photovoltaic module to the power tower being monitored.
5. The intelligent power tower monitoring system of claim 4, wherein the securing device is a latch to which the photovoltaic module is secured.
6. The intelligent power tower monitoring system of claim 5, wherein the exterior surface of the latch is painted with an insulating paint.
7. The intelligent power tower monitoring system of claim 6, wherein an insulating non-slip silica gel is sleeved on an outer surface of the latch.
8. An intelligent power tower monitoring system according to any one of claims 5 to 7, further comprising an insulated tension steel cable having one end secured to the latch and the other end for securing to the ground.
9. The intelligent power tower monitoring system of claim 1, wherein the monitored tower line information displayed by the display screen comprises: the number of the monitored tower, the name of the power supply user, the service condition of the line disconnecting link, the line direction and the contact way.
10. The intelligent power tower monitoring system of claim 1, wherein the alarm is a beep alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010627914.6A CN111917180B (en) | 2020-07-02 | 2020-07-02 | Intelligent power tower monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010627914.6A CN111917180B (en) | 2020-07-02 | 2020-07-02 | Intelligent power tower monitoring system |
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| Publication Number | Publication Date |
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| CN111917180A true CN111917180A (en) | 2020-11-10 |
| CN111917180B CN111917180B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010627914.6A Active CN111917180B (en) | 2020-07-02 | 2020-07-02 | Intelligent power tower monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847538A (en) * | 2021-09-29 | 2021-12-28 | 广东电网有限责任公司 | Intelligent universal signboard |
| CN113945283A (en) * | 2021-10-14 | 2022-01-18 | 广东电网有限责任公司 | Electric power tower protector capable of being monitored on line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730351A (en) * | 2013-12-20 | 2015-06-24 | 西安欣东源电气有限公司 | Electric transmission and distribution circuit on-line monitoring system with electric field detection |
| CN205788588U (en) * | 2016-06-12 | 2016-12-07 | 深圳华盛创力科技有限公司 | Transmission line of electricity monitoring device and system |
| CN107389134A (en) * | 2017-08-18 | 2017-11-24 | 深圳市益鑫智能科技有限公司 | A kind of transmission tower intelligent protection system |
| CN107680343A (en) * | 2017-09-20 | 2018-02-09 | 陈美萍 | A kind of transmission tower intelligent protection system |
| CN207335774U (en) * | 2017-10-19 | 2018-05-08 | 云南机电职业技术学院 | A kind of power transmission line comprehensive on-line monitoring and cruising inspection system |
| CN207379530U (en) * | 2017-07-24 | 2018-05-18 | 国家电网公司 | A kind of composite monitoring device based on electric force pole tower |
| CN108181863A (en) * | 2017-12-30 | 2018-06-19 | 庞佳丽 | A kind of Novel monitoring system |
| CN108199660A (en) * | 2017-12-30 | 2018-06-22 | 朱艳 | A kind of photovoltaic fixing device |
| CN108917852A (en) * | 2018-08-22 | 2018-11-30 | 国网江苏省电力有限公司盐城供电分公司 | A kind of power circuit intelligent on-line detection system based on multiple sensors |
| CN110718033A (en) * | 2019-10-12 | 2020-01-21 | 国网新疆电力有限公司喀什供电公司 | Monitoring and early warning system for preventing external damage of power transmission line and use method |
-
2020
- 2020-07-02 CN CN202010627914.6A patent/CN111917180B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730351A (en) * | 2013-12-20 | 2015-06-24 | 西安欣东源电气有限公司 | Electric transmission and distribution circuit on-line monitoring system with electric field detection |
| CN205788588U (en) * | 2016-06-12 | 2016-12-07 | 深圳华盛创力科技有限公司 | Transmission line of electricity monitoring device and system |
| CN207379530U (en) * | 2017-07-24 | 2018-05-18 | 国家电网公司 | A kind of composite monitoring device based on electric force pole tower |
| CN107389134A (en) * | 2017-08-18 | 2017-11-24 | 深圳市益鑫智能科技有限公司 | A kind of transmission tower intelligent protection system |
| CN107680343A (en) * | 2017-09-20 | 2018-02-09 | 陈美萍 | A kind of transmission tower intelligent protection system |
| CN207335774U (en) * | 2017-10-19 | 2018-05-08 | 云南机电职业技术学院 | A kind of power transmission line comprehensive on-line monitoring and cruising inspection system |
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| CN108199660A (en) * | 2017-12-30 | 2018-06-22 | 朱艳 | A kind of photovoltaic fixing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113847538A (en) * | 2021-09-29 | 2021-12-28 | 广东电网有限责任公司 | Intelligent universal signboard |
| CN113945283A (en) * | 2021-10-14 | 2022-01-18 | 广东电网有限责任公司 | Electric power tower protector capable of being monitored on line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111917180B (en) | 2024-04-26 |
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