CN111123013A - Ubiquitous power internet of things surge monitoring and early warning device - Google Patents
Ubiquitous power internet of things surge monitoring and early warning device Download PDFInfo
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- CN111123013A CN111123013A CN201911398343.7A CN201911398343A CN111123013A CN 111123013 A CN111123013 A CN 111123013A CN 201911398343 A CN201911398343 A CN 201911398343A CN 111123013 A CN111123013 A CN 111123013A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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Abstract
The invention relates to a ubiquitous power Internet of things surge monitoring and early warning device which is arranged near high-voltage distribution equipment with a lightning arrester; the solar cell comprises a case and a solar panel, wherein a circuit board and a wireless communication module are arranged in the case; the circuit board is provided with an MCU minimum system, a zero-flux mutual inductor, a Rogowski coil and a serial port communication module, a lightning protection grounding wire of the lightning arrester is connected with an upper induction coil and a lower induction coil in series, and the upper induction coil is connected with the input side of the Rogowski coil; the lower induction coil is connected with the input side of the zero-flux transformer; the MCU minimum system on the circuit board is connected with the serial port communication module in a bidirectional way, and is connected with the zero-flux transformer and the Rogowski coil to acquire signals; the solar panel is used for supplying power to each module and device in the case through the MCU minimum system; the serial port communication module is connected with the wireless communication module in a bidirectional mode. The ubiquitous power internet of things surge monitoring and early warning device disclosed by the invention can be used for monitoring the performance of a lightning arrester device and ensuring the safe operation of a power system.
Description
Technical Field
The invention relates to the field of lightning protection online monitoring of high-voltage distribution equipment, in particular to a ubiquitous power internet of things surge monitoring and early warning device.
Background
In recent years, in order to reduce the action of a breaker caused by overvoltage generated by lightning strike on an outdoor power transmission line, the MOA lightning arrester of the high-voltage-level power transmission line plays a great role and is widely applied, and the performance of the MOA lightning arrester directly influences the safe operation of a power system; because the MOA arrester can age gradually under the effect of power frequency high voltage for a long time, breakdown damage is likely to occur in the operation, and the protection characteristic is reduced, extremely serious consequences can be generated, and in order to guarantee the safe operation of the MOA arrester, the MOA arrester must be strictly monitored. However, many high-voltage-level power grids are arranged in remote areas in mountainous areas, and lightning arrester monitoring devices are all arranged at the high positions of towers, so that the difficulty in parameter reading and maintenance of the lightning arresters is high; the existing method is to adopt the lightning arrester to be rotated periodically, and to check and clean the lightning arrester and the grounding device in the upper tower in the standard maintenance once a year; the method for replacing the lightning arrester and cleaning the lightning arrester is high in cost, high in working labor intensity, long in period of power failure application and not beneficial to economical and stable operation of the power transmission line.
Disclosure of Invention
In order to solve the technical problems, the invention provides a ubiquitous power internet of things surge monitoring and early warning device, which depends on a ubiquitous power internet of things platform, adopts photovoltaic power supply and an intelligent detection circuit with a microcontroller as a core, and realizes data analysis and information sharing of a wireless network technology by monitoring the performance and predicting faults of a lightning arrester device in high-voltage-level power transmission and distribution equipment, thereby ensuring the safe operation of a power system.
The technical scheme adopted by the invention for solving the technical problems is as follows: a ubiquitous power Internet of things surge monitoring and early warning device is installed near high-voltage distribution equipment with a lightning arrester; the early warning device comprises a case and a solar panel, wherein a circuit board and a wireless communication module are arranged in the case; the circuit board is provided with an MCU minimum system, a zero magnetic flux transformer, a Rogowski coil and a serial port communication module, and the lightning arrester is connected with a lightning grounding wire; the lightning protection grounding wire is connected with an upper induction coil and a lower induction coil in series, and the upper induction coil is connected with the input side of the Rogowski coil in the case; the lower induction coil is connected with the input side of a zero-flux transformer in the case; the MCU minimum system on the circuit board is connected with the serial port communication module in a bidirectional mode, and the MCU minimum system is connected with the zero-flux transformer and the Rogowski coil respectively and then acquires signals; the solar panel is used for supplying power to each module and device in the case through the MCU minimum system; the serial port communication module is connected with the wireless communication module in a bidirectional mode.
The case is also internally provided with a photovoltaic controller, a storage battery pack and a level conversion module; the circuit board is also provided with a power supply module; still be equipped with energy storage end, input and output on the photovoltaic controller, solar panel is connected with quick-witted incasement photovoltaic controller's input through a photovoltaic cable, photovoltaic controller's energy storage end and storage battery both way junction, level conversion module's input is connected to photovoltaic controller's output, power module's on the output connection circuit board input, MCU minimum system is connected to power module's output.
The case is also internally provided with a built-in antenna; the circuit board is also provided with an SD card; the SD card is bidirectionally connected with the MCU minimum system; the wireless communication module is connected with the built-in antenna, and the wireless communication module is networked with external telecommunication equipment through an authorized SD card by utilizing the built-in antenna.
The circuit board is also provided with a storage module; and the storage module is bidirectionally connected with the MCU minimum system and used for storing and reading data.
A temperature and humidity module and a temperature and humidity probe connected with the temperature and humidity module are also arranged in the case; and the MCU minimum system is connected with the temperature and humidity module and then acquires signals for detecting the temperature and the humidity in the case.
The circuit board is also provided with a digital display, and the MCU minimum system on the circuit board is connected with the digital display and then provides a driving signal; the digital display is used for displaying the lightning stroke count value and the working parameters of the lightning arrester.
The machine box is of a waterproof box type structure consisting of a machine box door, a machine box body and a machine box top, the machine box body is in a vertically placed front-side open form, the front side of the machine box body is a door frame, the machine box door is installed on the door frame and is opened outwards, a door lock is arranged on the right side in the middle of the machine box door, a rectangular display frame is arranged in the middle of the machine box door, and a liquid crystal touch screen is embedded in the display frame; the liquid crystal touch screen is connected with the MCU minimum system in a bidirectional mode and used for acquiring a setting instruction and watching data.
An infrared probe is further embedded below the right side of the cabinet door, an infrared sensing module is further mounted in the cabinet, and the infrared sensing module is connected with the infrared probe; the MCU minimum system is used for awakening the internal MCU minimum system and driving the liquid crystal touch screen and the digital display to be lightened when a human body approaches the case, and the liquid crystal touch screen and the digital display are both extinguished when no human body approaches the case.
An entrance guard probe is also embedded in the doorframe of the case body; an access control module connected with the access control probe is also arranged in the case; the MCU minimum system is connected with the gate inhibition module and then acquires signals; the entrance guard probe is used for preventing the door of the machine cabinet from being opened by mistake and damaged.
The case is arranged on an outdoor upright post which is vertically arranged near high-voltage distribution equipment, and a grounding device is arranged below the outdoor upright post; the lightning protection grounding wire is connected with the grounding device; the upper part of the machine box top is of an inclined plane structure, and the lower part of the machine box top is larger than the cross section of the machine box body by a circle and covers the upper part of the machine box body; the solar panel is composed of a frame and a photovoltaic chip array and is arranged on the top side of the case; a row of heat dissipation strip windows from top to bottom are respectively arranged on two sides of the case body; the case body is sleeved and fixed at the upper part of the outdoor upright stanchion through an upper anchor ear and a lower anchor ear at the rear side.
The invention has the beneficial effects that: the ubiquitous power internet of things surge monitoring and early warning device provided by the invention is based on a ubiquitous power internet of things platform, adopts photovoltaic power supply and an intelligent detection circuit with a microcontroller as a core, and realizes data analysis and information sharing of a wireless network technology by monitoring the performance and pre-judging faults of the lightning arrester device in high-voltage-level power transmission and distribution equipment, reduces unnecessary replacement of the lightning arrester device, reduces equipment maintenance cost, lightens the working labor intensity of managers, and ensures safe, economic and reliable operation of the power transmission and distribution equipment.
Drawings
Fig. 1 is a schematic overall structure diagram of a ubiquitous power internet of things surge monitoring and early warning device according to an embodiment;
fig. 2 is a schematic circuit diagram of a surge monitoring and early warning device of the ubiquitous power internet of things according to the embodiment;
fig. 3 is a schematic view of an installation structure of the surge monitoring and early warning device of the ubiquitous power internet of things according to the embodiment;
wherein: 1-case, 1 a-case door, 1a 1-display frame, 1a 2-door lock, 1 b-case body, 1b 1-heat dissipation strip window, 1 c-case top, 1 d-mounting lining board, 2-solar panel, 2 a-frame, 2 b-photovoltaic chip array, 2 c-photovoltaic cable, 3-circuit board, 3a-MCU minimum system, 3 b-storage module, 3c-SD card, 3 d-zero flux transformer, 3d 1-lower induction coil, 3 e-Rogowski coil, 3e 1-upper induction coil, 3 f-power module, 3 g-serial communication module, 3 h-digital display, 4-photovoltaic controller, 5-storage battery, 6-level conversion module, 7-infrared induction module, 7 a-infrared probe, 8-temperature and humidity module, 8 a-temperature and humidity probe, 9-entrance guard module, 9 a-entrance guard probe, 10-wireless communication module, 10 a-built-in antenna, 11-liquid crystal touch screen, 12-high voltage distribution equipment, 13-lightning arrester, 14-outdoor upright rod, 15-hoop, 16-lightning protection grounding wire and 17-grounding device.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
Examples
As shown in fig. 1, the overall structure of the surge monitoring and warning device for the ubiquitous power internet of things is shown in this embodiment; a ubiquitous power Internet of things surge monitoring and early warning device comprises a case 1 and a solar panel 2, wherein the case comprises a case door 1a, a case body 1b and a case top 1c, and is of a waterproof case type structure made of stainless steel materials, the case door can be opened outwards, a door lock 1a2 is arranged on the right side in the middle of the case door, an infrared probe 7a is embedded below the right side and used for sensing the approaching state of a human body, and display equipment in the case can be switched between standby and awakening; a rectangular display frame 1a1 is arranged in the middle of the cabinet door, and a liquid crystal touch screen 11 is embedded in the display frame and used for man-machine conversation operation and can be used for setting operation parameters and displaying watching data; the upper part of the top of the case is of an inclined plane structure and is used for preventing water outdoors; the lower part of the top of the case is larger than the cross section of the case body by a circle and covers the upper part of the case body, so that rainwater can be prevented from being sprayed on the case; the solar panel is composed of a frame 2a and a photovoltaic chip array 2b and is arranged on the top of the case, and a photovoltaic cable 2c is arranged at the bottom of the solar panel and is connected into the case; the cabinet body is in a vertically-placed front-side open form, the front side of the cabinet body is a door frame, and an entrance guard probe 9a is embedded above the right side of the door frame and used for monitoring the closing condition of the cabinet door and preventing rainwater and dust invasion caused after the cabinet door is opened under the abnormal operation condition; a row of heat dissipation strip windows 1b1 from top to bottom are respectively arranged on two sides of the case body and used for dissipating heat generated by internal devices during working; the rear side of the case body is provided with an upper anchor ear 15 and a lower anchor ear 15 which are used for installation and fixation; the machine box body is internally provided with a mounting lining plate 1d, and a circuit board 3 and a control detection device are arranged on the mounting lining plate.
As shown in fig. 2, the circuit schematic diagram of the surge monitoring and early warning device for the ubiquitous power internet of things in the embodiment is shown; a photovoltaic controller 4, a storage battery pack 5, a level conversion module 6, an infrared sensing module 7, a temperature and humidity module 8, an access control module 9, a wireless communication module 10 and a built-in antenna 10a are arranged in a case in the figure; the circuit board 3 is provided with an MCU minimum system 3a, a storage module 3b, an SD card 3c, a zero flux transformer 3d, a Rogowski coil 3e, a power supply module 3f, a serial port communication module 3g and a digital display 3 h; a photovoltaic cable is arranged at the bottom of the solar panel to connect a power supply to an input end of a photovoltaic controller in the case, an energy storage end and an output end are further arranged on the photovoltaic controller, and the energy storage end of the photovoltaic controller is bidirectionally connected with the storage battery; when sunlight irradiates the solar panel, electric energy generated by the photovoltaic array is transmitted to the photovoltaic controller through the photovoltaic cable, and the photovoltaic controller supplies power to the internal circuit and charges the storage battery pack at the same time; when no sunlight irradiates the solar panel, the input end of the photovoltaic controller cannot obtain photovoltaic electric energy, and the storage battery pack releases the electric energy to supply power to the photovoltaic controller and further to supply power to an internal circuit; the output end of the photovoltaic controller is connected with the input end of the level conversion module, the output end of the level conversion module is connected with the input end of the power module on the circuit board, the output end of the power module is connected with the MCU minimum system, and power is supplied to each module and device in the case through the MCU minimum system, so that the device in the case can be ensured to continuously obtain power no matter whether weather is cloudy or sunny; the MCU minimum system on the circuit board can store data and obtain an authorization code after being connected with the storage module and the SD card, can obtain a setting instruction and look around data after being connected with the liquid crystal touch screen, and can carry out RS-485 bidirectional communication after being connected with the serial port communication module; the MCU minimum system is respectively connected with the zero-flux transformer, the Rogowski coil, the infrared induction module, the temperature and humidity module and the access control module and then can acquire a leakage current signal, a lightning current signal, a human body induction signal, a temperature and humidity signal and an access control signal; the MCU minimum system on the circuit board is connected with the digital display to provide a driving signal, and a lightning stroke count value and working parameters of the lightning arrester are displayed; the infrared sensing module is connected with an infrared probe embedded on a cabinet door, when a human body approaches the cabinet, the internal MCU minimum system is awakened and the liquid crystal touch screen and the digital display are driven to be lightened, and when no human body approaches the cabinet, the liquid crystal touch screen and the digital display are both extinguished; the temperature and humidity module is connected with a temperature and humidity probe fixed in the case and used for detecting the temperature and humidity in the case; the entrance guard module is connected with an entrance guard probe embedded on a door frame of the cabinet body, so that the cabinet door is prevented from being opened by mistake and damaged; the serial port communication module is connected with the wireless communication module in the case in a two-way mode, the wireless communication module is connected with a built-in antenna fixed in the case, network connection can be established with nearby telecommunication base stations through the wireless communication module, and information sharing with management equipment is achieved after authorization of the SD card.
As shown in fig. 3, the mounting structure of the surge monitoring and warning device for the ubiquitous power internet of things is shown in this embodiment; the casing and solar panel suite assembly is generally installed near outdoor high-voltage distribution equipment 12, a lightning arrester 13 is arranged in the high-voltage distribution equipment, an outdoor upright rod 14 is arranged near the high-voltage distribution equipment, a grounding device 17 is arranged below the outdoor upright rod, and the grounding resistance of the grounding device is less than 4 ohms; when the device is installed, the machine box body is sleeved and fixed at the upper part of the outdoor upright stanchion through an upper hoop and a lower hoop at the rear side; the lightning arrester in the high-voltage distribution equipment is connected with a lightning grounding wire 16 and then is connected with a grounding device below along an outdoor vertical rod; an upper induction coil and a lower induction coil are connected in the lightning grounding wire in series, and the upper induction coil is connected with the input side of the Rogowski coil in the case; the lower induction coil is connected with the input side of a zero magnetic flux transformer in the case, when the lightning arrester is about to fail, under the action of high voltage, small leakage current is generated to the ground through the lightning grounding wire, the magnitude of the leakage current can be accurately detected by adopting the zero magnetic flux transformer, the failure of the lightning arrester can be predicted, and managers are prompted to process and replace equipment in time; when high-voltage distribution equipment receives lightning impulse, can switch on through lightning arrester and discharge, adopt the luo shi coil can the induction lightning stroke number of times and record thunder and lightning pulse waveform, the lightning current discharges to the ground through lightning-arrest earth connection and earthing device rapidly, has guaranteed power transmission and distribution equipment's safe operation.
In summary, the ubiquitous power internet of things surge monitoring and early warning device provided by the invention relies on a ubiquitous power internet of things platform, adopts a photovoltaic power supply and an intelligent detection circuit with a microcontroller as a core, and realizes data analysis and information sharing of a wireless network technology by monitoring the performance and predicting faults of the lightning arrester device in high-voltage-level power transmission and distribution equipment, thereby reducing unnecessary replacement of the lightning arrester device, reducing equipment maintenance cost, reducing the working labor intensity of managers, and ensuring safe, economic and reliable operation of the power transmission and distribution equipment.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a ubiquitous electric power thing networking surge monitoring early warning device which characterized in that: is installed near high-voltage distribution equipment with a lightning arrester; the early warning device comprises a case and a solar panel, wherein a circuit board and a wireless communication module are arranged in the case; the circuit board is provided with an MCU minimum system, a zero magnetic flux transformer, a Rogowski coil and a serial port communication module, and the lightning arrester is connected with a lightning grounding wire; the lightning protection grounding wire is connected with an upper induction coil and a lower induction coil in series, and the upper induction coil is connected with the input side of the Rogowski coil in the case; the lower induction coil is connected with the input side of a zero-flux transformer in the case; the MCU minimum system on the circuit board is connected with the serial port communication module in a bidirectional mode, and the MCU minimum system is connected with the zero-flux transformer and the Rogowski coil respectively and then acquires signals; the solar panel is used for supplying power to each module and device in the case through the MCU minimum system; the serial port communication module is connected with the wireless communication module in a bidirectional mode.
2. The ubiquitous power internet of things surge monitoring and early warning device according to claim 1, wherein: the case is also internally provided with a photovoltaic controller, a storage battery pack and a level conversion module; the circuit board is also provided with a power supply module; still be equipped with energy storage end, input and output on the photovoltaic controller, solar panel is connected with quick-witted incasement photovoltaic controller's input through a photovoltaic cable, photovoltaic controller's energy storage end and storage battery both way junction, level conversion module's input is connected to photovoltaic controller's output, power module's on the output connection circuit board input, MCU minimum system is connected to power module's output.
3. The ubiquitous power internet of things surge monitoring and early warning device according to claim 1, wherein: the case is also internally provided with a built-in antenna; the circuit board is also provided with an SD card; the SD card is bidirectionally connected with the MCU minimum system; the wireless communication module is connected with the built-in antenna, and the wireless communication module is networked with external telecommunication equipment through an authorized SD card by utilizing the built-in antenna.
4. A ubiquitous power internet of things surge monitoring and early warning device as claimed in claim 1, 2 or 3, wherein: the circuit board is also provided with a storage module; and the storage module is bidirectionally connected with the MCU minimum system and used for storing and reading data.
5. A ubiquitous power internet of things surge monitoring and early warning device as claimed in claim 1, 2 or 3, wherein: a temperature and humidity module and a temperature and humidity probe connected with the temperature and humidity module are also arranged in the case; and the MCU minimum system is connected with the temperature and humidity module and then acquires signals for detecting the temperature and the humidity in the case.
6. The ubiquitous power internet of things surge monitoring and early warning device according to claim 1, wherein: the circuit board is also provided with a digital display, and the MCU minimum system on the circuit board is connected with the digital display and then provides a driving signal; the digital display is used for displaying the lightning stroke count value and the working parameters of the lightning arrester.
7. The ubiquitous power internet of things surge monitoring and early warning device according to claim 6, wherein: the machine box is of a waterproof box type structure consisting of a machine box door, a machine box body and a machine box top, the machine box body is in a vertically placed front-side open form, the front side of the machine box body is a door frame, the machine box door is installed on the door frame and is opened outwards, a door lock is arranged on the right side in the middle of the machine box door, a rectangular display frame is arranged in the middle of the machine box door, and a liquid crystal touch screen is embedded in the display frame; the liquid crystal touch screen is connected with the MCU minimum system in a bidirectional mode and used for acquiring a setting instruction and watching data.
8. The ubiquitous power internet of things surge monitoring and early warning device according to claim 7, wherein: an infrared probe is further embedded below the right side of the cabinet door, an infrared sensing module is further mounted in the cabinet, and the infrared sensing module is connected with the infrared probe; the MCU minimum system is used for awakening the internal MCU minimum system and driving the liquid crystal touch screen and the digital display to be lightened when a human body approaches the case, and the liquid crystal touch screen and the digital display are both extinguished when no human body approaches the case.
9. The ubiquitous power internet of things surge monitoring and early warning device according to claim 7, wherein: an entrance guard probe is also embedded in the doorframe of the case body; an access control module connected with the access control probe is also arranged in the case; the MCU minimum system is connected with the gate inhibition module and then acquires signals; the entrance guard probe is used for preventing the door of the machine cabinet from being opened by mistake and damaged.
10. The ubiquitous power internet of things surge monitoring and early warning device according to claim 7, wherein: the case is arranged on an outdoor upright post which is vertically arranged near high-voltage distribution equipment, and a grounding device is arranged below the outdoor upright post; the lightning protection grounding wire is connected with the grounding device; the upper part of the machine box top is of an inclined plane structure, and the lower part of the machine box top is larger than the cross section of the machine box body by a circle and covers the upper part of the machine box body; the solar panel is composed of a frame and a photovoltaic chip array and is arranged on the top side of the case; a row of heat dissipation strip windows from top to bottom are respectively arranged on two sides of the case body; the case body is sleeved and fixed at the upper part of the outdoor upright stanchion through an upper anchor ear and a lower anchor ear at the rear side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398343.7A CN111123013A (en) | 2019-12-30 | 2019-12-30 | Ubiquitous power internet of things surge monitoring and early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398343.7A CN111123013A (en) | 2019-12-30 | 2019-12-30 | Ubiquitous power internet of things surge monitoring and early warning device |
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| Publication Number | Publication Date |
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| CN111123013A true CN111123013A (en) | 2020-05-08 |
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| CN201911398343.7A Withdrawn CN111123013A (en) | 2019-12-30 | 2019-12-30 | Ubiquitous power internet of things surge monitoring and early warning device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113516578A (en) * | 2021-08-04 | 2021-10-19 | 甘肃省建筑设计研究院有限公司 | Regional management system and device for public service facilities based on life circle background |
| CN114285359A (en) * | 2021-12-24 | 2022-04-05 | 深圳供电局有限公司 | Photovoltaic controller structure |
| CN114280349A (en) * | 2021-11-23 | 2022-04-05 | 国网浙江省电力有限公司文成县供电公司 | Lightning arrester lightning monitor |
-
2019
- 2019-12-30 CN CN201911398343.7A patent/CN111123013A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113516578A (en) * | 2021-08-04 | 2021-10-19 | 甘肃省建筑设计研究院有限公司 | Regional management system and device for public service facilities based on life circle background |
| CN114280349A (en) * | 2021-11-23 | 2022-04-05 | 国网浙江省电力有限公司文成县供电公司 | Lightning arrester lightning monitor |
| CN114285359A (en) * | 2021-12-24 | 2022-04-05 | 深圳供电局有限公司 | Photovoltaic controller structure |
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