CN106706086A - Ultra-high voltage transmission line on-line monitoring system - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G9/00—Methods of, or apparatus for, the determination of weight, not provided for in groups G01G1/00 - G01G7/00
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- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
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Abstract
The present invention relates to an ultra-high voltage transmission line on-line monitoring system. According to the ultra-high voltage transmission line on-line monitoring system, a data acquisition terminal acquires the integrated load of transmission line conductors, conductor temperature, tower tilt angles, insulator string tilt angles, insulator string leakage current, weather information, power transmission conductor vibration and tower vibration and sends the acquired signals to a central data processing unit; the central data processing unit performs anti-interference processing on the above signals and sends the processed signals to a background analysis device in a packet manner through a wireless communication network; data information is displayed on a GIS electronic map; and the background analysis device judges whether an abnormality occurs on a power transmission line according to the above signals and based on a mathematical model, and timely issues alarm information when the abnormality occurs on the power transmission line. According to the ultra-high voltage transmission line on-line monitoring system of the invention, anti-interference processing is performed on the acquired data, the interference of an ultra-high voltage electromagnetic field can be shielded, and the working state of an ultra-high voltage transmission line can be accurately monitored.
Description
Technical Field
The invention relates to the technical field of extra-high voltage power transmission equipment, in particular to an extra-high voltage power transmission line on-line monitoring system.
Background
As the hydropower resources which can be developed in China are nearly 2/3 in the west, and 2/3 of the coal resources are in Shanxi, Shaanxi and inner Mongolia; however, the electricity load of 2/3 in China is distributed in east economically developed areas along the east coast and Jingguangdong railway. Thus, the electric power generated by the energy base needs to be transmitted to the middle east region with large electric power demand.
In order to reduce transmission loss and improve transmission quality, the ultra-high voltage transmission technology is developed in China at present. Ultra-high voltage AC transmission refers to 100Alternating current transmission engineering with voltage class of 0kV and above and related technology. The ultra-high voltage transmission technology has the characteristics of long distance, large capacity, low loss, economy and the like.
However, the voltage class of the ultra-high voltage transmission line is very high, so that whether the ultra-high voltage transmission line works normally needs to be monitored so as to avoid transmission faults. The existing on-line monitoring system for the low-voltage-grade power transmission line has poor anti-jamming capability and cannot be directly applied to the ultra-high voltage power transmission line.
Disclosure of Invention
The invention aims to provide an on-line monitoring system for an extra-high voltage transmission line, which can resist the interference of a strong electromagnetic field and accurately monitor the running condition of the transmission line.
The invention relates to an extra-high voltage transmission line on-line monitoring system, which comprises: the system comprises a data acquisition terminal, a central data processing unit, a wireless communication network, a background analysis device and a geographic information display device;
the data acquisition terminal is used for acquiring comprehensive load, wire temperature, tower inclination angle, insulator string leakage current, meteorological information, transmission wire vibration and tower vibration of a transmission line wire and transmitting the acquired signals to the central data processing unit;
the central data processing unit is used for packaging the signals after anti-interference processing, and transmitting the packaged signals to the background analysis device through the wireless communication network;
the background analysis device is used for judging whether the power transmission line is abnormal or not according to the signals and by combining a mathematical model, and sending alarm information in time when the power transmission line is abnormal;
and the geographic information display device displays the data received by the background analysis device on the geographic information display device.
Preferably, the data acquisition terminal comprises a gravity sensor arranged on a first insulator of the tower cross arm and used for measuring the comprehensive load borne by the lead and sending the comprehensive load to the central data processing unit.
Preferably, the data acquisition terminal comprises a wire temperature sensor arranged on a wire node, and is used for measuring the wire temperature and sending the temperature to the central data processing unit.
Preferably, the data acquisition terminal comprises an inclination angle sensor for monitoring the inclination angle of the tower or the insulator string and sending the inclination angle to the central data processing unit.
Preferably, the data acquisition terminal comprises a leakage current sensor arranged on the last insulator of the tower, and is used for measuring the leakage current of the insulator string and sending the leakage current to the central data processing unit.
Preferably, the data acquisition terminal comprises a vibration sensor for measuring the vibration of the transmission conductor and the vibration of the tower and sending vibration signals to the central data processing unit.
Preferably, the central data processing unit is configured to perform anti-interference processing on each of the signals, and then package the signals and send the signals to the background analysis device through the wireless communication network, and specifically: and data coding is carried out on the signals by adopting a data coding technology with an error correction function, the signals are packed by adopting a data compression technology, and proper data mass sending time is selected by adopting a routing detection technology.
Preferably, the data acquisition terminal further comprises a camera for shooting the power transmission line tower, the wire, the insulator string and the hardware fitting, sending the shot image to the background analysis device, and displaying the shot image on the GIS electronic map in a three-dimensional manner.
Preferably, the signal transmission line of the sensor adoptsA double-layer shielded wire; wherein,
the outer layer of the double-layer shielding wire is shielded at the iron head of an insulator of the power transmission iron tower and is grounded;
the inner shield of the double-layer shield line is grounded at the sensor location.
The data acquisition terminal comprises an environment temperature sensor, a wind direction sensor and a wind speed sensor and is used for measuring meteorological information and sending the meteorological information to the central data processing unit.
Compared with the prior art, the invention has the following advantages:
according to the ultra-high voltage transmission line on-line monitoring system provided by the invention, the data acquisition terminal can simultaneously monitor the comprehensive load, the wire temperature, the tower inclination angle, the insulator string leakage current, the meteorological information, the transmission wire vibration and the tower vibration condition of the transmission line, and sends the data to the central data processing unit, the central data processing unit performs anti-interference processing on the data and then packages and sends the data to the background analysis system, the background analysis system judges whether the transmission line is abnormal or not by combining with a mathematical model, and if the transmission line is abnormal, the alarm is given in time. Meanwhile, the invention is also provided with a geographic information monitoring system, so that the data acquired by the data acquisition terminal can be synchronously and visually displayed on the GIS electronic map, and the running condition of the power transmission line can be comprehensively mastered. The invention carries out anti-interference processing on the acquired data, thereby shielding the interference of the extra-high voltage strong electromagnetic field and accurately monitoring the working state of the extra-high voltage transmission line.
Drawings
FIG. 1 is a first embodiment of the structure of the ultra-high voltage transmission line on-line monitoring system of the invention;
FIG. 2 is a structural diagram of a second embodiment of the ultra-high voltage transmission line on-line monitoring system of the invention;
FIG. 3 is a schematic diagram of a power supply of the wire monitoring system for an ultra-high voltage transmission line according to the present invention;
FIG. 4 is a microprocessor chip diagram of the ultra-high voltage transmission line conductor monitoring system of the present invention;
FIG. 5 is a clock circuit diagram of the conductor monitoring system of the ultra-high voltage transmission line.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, the figure is a structural diagram of a first embodiment of the extra-high voltage transmission line on-line monitoring system of the invention.
The invention provides an extra-high voltage transmission line on-line monitoring system, which comprises: the system comprises a data acquisition terminal 101, a central data processing unit 102, a wireless communication network 103, a background analysis device 104 and a geographic information display device 105.
The data acquisition terminal 101 is configured to acquire a comprehensive load of a transmission line conductor, a conductor temperature, a tower inclination angle, an insulator string leakage current, meteorological information, transmission conductor vibration, and tower vibration, and send each acquired signal to the central data processing unit 102.
The central data processing unit 102 is configured to perform anti-interference processing on the signals, and then package the signals and send the signals to the background analysis device 103 through the wireless communication network.
The wireless communication network includes Global System for mobile Communications (GSM), Code-Division Multiple Access (CDMA), or General Packet Radio Service (GPRS) Service)。
The central data processing unit 102 specifically performs the anti-interference processing on the signals as follows: and data coding is carried out on the signals by adopting a data coding technology with an error correction function, the signals are packed by adopting a data compression technology, and proper data mass sending time is selected by adopting a routing detection technology.
And the background analysis device 103 is used for judging whether the power transmission line is abnormal or not according to the signals and by combining a mathematical model, and sending alarm information in time when the power transmission line is abnormal.
The Geographic Information display device (GIS) 104 receives the data processed by the background analysis device 103, and can establish a three-dimensional display interface to display the data by using an electronic dirty area map and an electronic ice area map under the condition that the data Information is enough.
According to the ultra-high voltage transmission line on-line monitoring system provided by the invention, the data acquisition terminal can simultaneously monitor the comprehensive load, the wire temperature, the tower inclination angle, the insulator string leakage current and the tower vibration condition of the transmission line and send the data to the central data processing unit, the central data processing unit performs anti-interference processing on the data and then packages and sends the data to the background analysis system, the background analysis system is combined with the mathematical model to judge whether the transmission line is abnormal, and if the transmission line is abnormal, an alarm is given in time. Meanwhile, the invention is also provided with a geographic information monitoring system, which can synchronously and visually display the data acquired by the data acquisition terminal on the GIS electronic map, comprehensively grasp the operation conditions of the power transmission line, such as an electronic dirty area map and an electronic ice area map, can establish a three-dimensional display interface under the condition of enough data information, and support a multi-window parallel image and video display mode. The invention carries out anti-interference processing on the acquired data, thereby shielding the interference of the extra-high voltage strong electromagnetic field and accurately monitoring the working state of the extra-high voltage transmission line.
The following detailed description is made in conjunction with FIG. 2How to realize data acquisition by the data acquisition terminal is described.
Referring to fig. 2, the diagram is a structural diagram of a second embodiment of the extra-high voltage transmission line on-line monitoring system of the invention.
The data acquisition terminal includes a gravity sensor 201, a wire temperature sensor 202, a tilt angle sensor 203, a leakage current sensor 204, and a vibration sensor 205.
The gravity sensor 201 is arranged on the first insulator string of the insulator strings to replace an original ball head hanging ring, is used for measuring the comprehensive load of the lead and sends the comprehensive load to the central data processing unit.
The gravity sensor 201 is designed by adopting full stainless steel and a special structure, adopts a design mode of single lug and double lugs in the aspect of structure, has the mechanical performance according with the national standard of 1000kV related design, and has the functions of aging resistance, corrosion resistance and deformation resistance. The gravity sensor 201 adopts a shear stress measurement mode, can bear gravity and pressure, and has good output symmetry, compact structure and convenient installation.
The comprehensive load borne by the gravity sensor 201 mainly includes: self-load (weight of insulator string, weight of wire, weight of hardware), ice load and wind load.
And the background expert analysis system obtains the estimated standard ice coating thickness or the approximate ice density ice coating thickness by performing relevant calculation according to relevant parameters of the installation line and historical meteorological parameters of the area and fully considering wind load in the ice-free state and wind load in the ice coating state.
And the wire temperature sensor is arranged on a wire node and used for measuring the wire temperature and sending the temperature to the central data processing unit.
And the inclination angle sensor 203 is used for monitoring the inclination angle of the tower or the insulator string and sending the inclination angle to the central data processing unit.
The tilt angle sensor 203 adopts a micro-mechanical structure technology, integrates a magneto-resistance chip and a single chip microcomputer signal processing technology, and can accurately measure the size of the tilt angle and track the change of the tilt angle. The micro-mechanical technology well overcomes the defect of poor vibration resistance of the common inclination angle sensor. The integrated magnetic-sensing resistor chip adopts a non-contact mode to sense the change of the angle, and the reliability and the frequency response performance of the product are greatly improved. The single chip microcomputer can perform temperature compensation on the angle measured by the inclination angle sensor 203, so that the temperature drift amount is reduced when the temperature sensor is used at high temperature.
And the leakage current sensor 204 is arranged on the last insulator of the tower and is used for measuring the leakage current of the insulator string and sending the leakage current to the central data processing unit.
The leakage current sensor 204 is made of high-quality Acrylonitrile-Butadiene-Styrene (ABS) engineering plastic, and has the functions of aging resistance, corrosion resistance and deformation resistance.
And a leakage current sensor is arranged on the last insulator on the side of the insulator string close to the iron tower by utilizing the principle that leakage current flows along the surface, and the leakage current is led into a central data processing unit arranged in the middle of the iron tower through a double-layer shielding wire.
The leakage current sensor 204 is arranged on the surface of the last insulator close to the side of the iron tower, is only 1-2 cm away from a steel cap of the insulator, can collect almost all leakage current in the insulator string, and does not influence the insulating property of the insulator and the safe operation of the transmission line.
And the vibration sensor 205 is used for measuring the vibration of the transmission conductor and the vibration of the tower and sending a vibration signal to the central data processing unit.
The vibration sensor 205 is cylindrical in shape, and has a dimension of 50mm in length and 30mm in diameter. The indium antimonide film magnetoresistor is used as sensitive element and matched with amplifying and shaping circuit to output quasi-sine wave AC voltage signalNumber (n).
The base of the vibration sensor 205 is fixed at the intersection of a tripod of a tower, the mounting surface is perpendicular to the vibration direction, the vibration direction to be measured is consistent with the monitoring direction of the sensor, and the signal measured by the vibration sensor 205 is sent to the central data processing unit through a double-layer shielding wire.
The weather sensor 206 is used for measuring weather information of the environment, and includes an ambient temperature sensor, an ambient humidity sensor, an air pressure sensor, a sunshine sensor, a rainfall sensor, a wind direction sensor and an air speed sensor, and the information measured by the sensors is sent to the central data processing unit, and the central data processing unit verifies whether the measurement structure of the sensor for measuring the condition of the power transmission line is accurate or not by combining the information.
It should be noted that, the sensors are powered by solar energy and a storage battery except for the lead temperature sensor. The storage battery is charged by the solar cell panel. Because wire temperature sensor installs on wire node or gold utensil, consequently wire temperature sensor can not adopt the battery power supply, and the wire temperature sensor of this embodiment utilizes the wire to get the electric installation. The wire electricity taking device is arranged on the wire and directly takes electricity from the wire to supply power for the wire temperature sensor.
It should be noted that a shielding box is arranged outside the wire temperature sensor and used for avoiding the interference of the extra-high voltage strong electromagnetic field.
The data acquisition terminal also comprises a camera which is used for shooting the running state of the power transmission line, sending the shot image to the background analysis system and visually displaying the image on the GIS electronic map in a three-dimensional mode.
Referring to fig. 3, the figure is a schematic diagram of a power supply of the conductor monitoring system of the ultra-high voltage transmission line.
Pin 1 and pin 2 of the power conversion chip are respectively connected with one end of a capacitor C17 and the ground after being short-circuited, and pin 3 and pin 4 are respectively connected with the ground after being short-circuitedThe other end of the capacitor C17 is in short circuit with the anode BAT + of the power supply, the pin 5, the pin 6 and the pin 7 are respectively connected with one end of the filter capacitor C19 and VCC, and the other end of the filter capacitor C19 is grounded.
The power supply BAT + is converted into the voltage required by the conductor temperature measurement monitoring system of the ultra-high voltage transmission line, a stable working voltage is provided for the conductor temperature measurement monitoring system of the ultra-high voltage transmission line, and the influence of external interference on the device is reduced.
Referring to fig. 4, the figure is a microprocessor chip diagram of the conductor monitoring system of the ultra-high voltage transmission line.
The MSP430 chip is preferably selected by the microprocessor adopted by the embodiment of the invention.
The MSP430 is a 16-bit singlechip with the characteristic of ultra-low power consumption, and the MSP430F149 is preferred in the embodiment, and the power consumption current reaches mA level.
MSP430 is a powerful CPU core: 16-bit CPU and high-efficiency RISC instruction system, no external data address bus, instruction cycle of 125ns at 8MHz, 16 quick response interrupts, and capability of timely processing various emergency events. And the MSP430 has rich functional modules: 12 bit a/D converter. The chip MSP430 works under the voltage of 1.8-3.6V, and has a normal working mode AM and 4 low-power-consumption working modes, namely LPM1, LPM2, LPM3 and LPM4 modes.
The microprocessor can be conveniently switched between various operating modes. In the practical application environment, the system can switch the working mode of the device at any time according to different operation conditions on site.
The working modes comprise an efficient mode: and when the abnormal condition of the line is found in the monitoring, the working frequency is increased.
And (3) a normal mode: the mode shows that the system works normally all the time, and no abnormal condition occurs in the monitored line.
Low power consumption mode: the system is in an automatic protection mode.
Referring to fig. 5, the figure is a clock circuit diagram of the conductor monitoring system of the ultra-high voltage transmission line.
The embodiment of the invention also provides a clock circuit for the conductor monitoring system of the ultra-high voltage transmission line and provides a time reference for the system.
As shown in fig. 5, pin 1 of the clock chip is connected to a power supply VCC, pins 2 and 3 are respectively connected to both ends of the oscillator, and pin 4 is grounded.
Pin 5, pin 6, and pin 7 of the clock chip are connected to pin 17 and pin 18, respectively, pin 22 of the microprocessor of fig. 4.
The online monitoring system for the ultra-high voltage transmission line provided by the embodiment of the invention can be used for monitoring the operation condition of the transmission line operating in a severe environment in all weather and in real time. The method comprises the steps of monitoring meteorological information, images, leakage current, tower inclination angle and vibration information, insulator string inclination angle, comprehensive wire load and icing condition, wire temperature and the like. And the collected information is introduced into the central data processing unit through the double-layer shielding wire. The central data processing unit stores and packages the data and transmits the data to the background analysis device in real time through GSM, GPRS or CDMA. And the background analysis device performs analysis processing by combining the acquired information with the mathematical model and displays all data to a user through a GIS. When abnormal conditions occur, the system can send out pre-alarm information in various modes to prompt managers to pay attention to alarm points or take necessary preventive measures.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present teachings, or modify equivalent embodiments to equivalent variations, without departing from the scope of the present teachings, using the methods and techniques disclosed above. Due to the fact thatAny simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (7)
1. The utility model provides an extra-high voltage transmission line on-line monitoring system which characterized in that includes: the system comprises a data acquisition terminal, a central data processing unit, a wireless communication network, a background analysis device and a geographic information display device;
the data acquisition terminal is used for acquiring comprehensive load, wire temperature, tower inclination angle, insulator string leakage current, meteorological information, transmission wire vibration and tower vibration of a transmission line wire and transmitting the acquired signals to the central data processing unit;
the central data processing unit is used for packaging the signals after anti-interference processing, and transmitting the packaged signals to the background analysis device through the wireless communication network;
the background analysis device is used for judging whether the power transmission line is abnormal or not according to the signals and by combining a mathematical model, and sending alarm information in time when the power transmission line is abnormal;
and the geographic information display device displays the data received by the background analysis device on the geographic information display device.
2. The system of claim 1, wherein the data acquisition terminal comprises a gravity sensor disposed on a first insulator of the tower cross arm for measuring a combined load borne by the conductor and transmitting the combined load to the central data processing unit.
3. The system of claim 1, wherein the data acquisition terminal comprises a wire temperature sensor disposed at a wire node for measuring a wire temperature and sending the temperature to the central data processing unit.
4. The system of claim 1, wherein the data acquisition terminal comprises an inclination angle sensor for monitoring the inclination angle of a tower or an insulator string and sending the inclination angle to the central data processing unit.
5. The system of claim 1, wherein the data acquisition terminal comprises a leakage current sensor arranged on the last insulator of the tower, and is configured to measure the leakage current of the insulator string and send the leakage current to the central data processing unit.
6. The system of claim 1, wherein the data acquisition terminal comprises a vibration sensor for measuring transmission conductor vibration and tower vibration, and sending vibration signals to the central data processing unit.
7. The system according to claim 1, wherein the central data processing unit is configured to perform anti-interference processing on the signals, package the signals, and send the packaged signals to the background analysis device through the wireless communication network, and specifically includes: and data coding is carried out on the signals by adopting a data coding technology with an error correction function, the signals are packed by adopting a data compression technology, and proper data mass sending time is selected by adopting a routing detection technology.
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Cited By (6)
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|---|---|---|---|---|
| CN107449453A (en) * | 2017-07-24 | 2017-12-08 | 国家电网公司 | Comprehensive monitor system based on electric force pole tower |
| CN110763270A (en) * | 2019-10-14 | 2020-02-07 | 国网江苏省电力有限公司盐城供电分公司 | Power transmission line tower pole working condition monitoring system based on multiple information acquisition |
| CN110807765A (en) * | 2019-09-27 | 2020-02-18 | 许昌许继软件技术有限公司 | Suspension insulator string inclination detection method and system based on image processing |
| CN113252102A (en) * | 2021-05-07 | 2021-08-13 | 国网山东省电力公司东平县供电公司 | High-voltage transmission line on-line monitoring system |
| RU211126U1 (en) * | 2020-07-21 | 2022-05-23 | Общество с ограниченной ответственностью «НАУЧНО-ПРОИЗВОДСТВЕННАЯ КОМПАНИЯ «ФАРАДА» | DEVICE FOR OPERATIONAL ONLINE MONITORING OF THE TECHNICAL CONDITION OF HIGH VOLTAGE POWER LINES |
| CN114910118A (en) * | 2021-11-17 | 2022-08-16 | 中国电力科学研究院有限公司 | Method and system for observing electromagnetic environment of alternating-current transmission line |
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2015
- 2015-11-12 CN CN201510771119.3A patent/CN106706086A/en not_active Withdrawn
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| CN107449453A (en) * | 2017-07-24 | 2017-12-08 | 国家电网公司 | Comprehensive monitor system based on electric force pole tower |
| CN107449453B (en) * | 2017-07-24 | 2019-08-23 | 国家电网公司 | Comprehensive monitor system based on electric force pole tower |
| CN110807765A (en) * | 2019-09-27 | 2020-02-18 | 许昌许继软件技术有限公司 | Suspension insulator string inclination detection method and system based on image processing |
| CN110763270A (en) * | 2019-10-14 | 2020-02-07 | 国网江苏省电力有限公司盐城供电分公司 | Power transmission line tower pole working condition monitoring system based on multiple information acquisition |
| RU211126U1 (en) * | 2020-07-21 | 2022-05-23 | Общество с ограниченной ответственностью «НАУЧНО-ПРОИЗВОДСТВЕННАЯ КОМПАНИЯ «ФАРАДА» | DEVICE FOR OPERATIONAL ONLINE MONITORING OF THE TECHNICAL CONDITION OF HIGH VOLTAGE POWER LINES |
| CN113252102A (en) * | 2021-05-07 | 2021-08-13 | 国网山东省电力公司东平县供电公司 | High-voltage transmission line on-line monitoring system |
| CN114910118A (en) * | 2021-11-17 | 2022-08-16 | 中国电力科学研究院有限公司 | Method and system for observing electromagnetic environment of alternating-current transmission line |
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