CN110487259B - Ground disaster early warning system for power transmission line - Google Patents
Ground disaster early warning system for power transmission line Download PDFInfo
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- CN110487259B CN110487259B CN201910802657.2A CN201910802657A CN110487259B CN 110487259 B CN110487259 B CN 110487259B CN 201910802657 A CN201910802657 A CN 201910802657A CN 110487259 B CN110487259 B CN 110487259B
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/165—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
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- G—PHYSICS
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- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
- G01S19/49—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system whereby the further system is an inertial position system, e.g. loosely-coupled
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Abstract
The invention discloses a ground disaster early warning system for a power transmission line, which comprises an intelligent three-dimensional attitude and vibration monitor, a GNSS surface displacement monitor and an edge calculation server; the intelligent three-dimensional posture and vibration monitor is fixedly arranged on a tower pole of the power transmission line and is used for acquiring triaxial acceleration data and inclination data of the tower pole; the data output end of the intelligent three-dimensional posture and vibration monitor is connected with the data input end of the edge calculation server and used for transmitting the acquired tower three-axis acceleration data and the acquired inclination data to the edge calculation server; the GNSS surface displacement monitor is arranged on a tower footing of the tower pole and is used for acquiring three-dimensional surface deformation data of the tower footing; the data output end of the GNSS earth surface displacement monitor is connected with the data input end of the edge calculation server and is used for transmitting the acquired tower footing three-dimensional earth surface deformation data to the edge calculation server; the edge computing server is mounted on the tower footing of the tower pole.
Description
Technical Field
The invention belongs to the technical field of power transmission line dangerous case early warning, and particularly relates to a ground disaster early warning system for a power transmission line.
Background
China has wide land breadth, various landforms and landforms in the national soil range, and people live on different landforms. Electric power is the main power supporting economic development, and a high-voltage transmission line is an electric power transmission channel and is a national economic artery. In order to meet the living power consumption requirements of people distributed on different landforms, power transmission lines need to be built on different landforms, wherein the power transmission lines are not lack of areas with extremely complex geological environment conditions. In some areas with extremely complicated geological conditions, strong wind can be generated all the year round, when more rainfall occurs in summer, geological disasters such as landslide, mud-rock flow and the like can occur, and even more, some areas are still on an earthquake belt, disasters such as earthquakes and the like can occur easily, and when the disasters are serious, the electric power transmission line can be damaged, so that economic loss is caused, and meanwhile inconvenience is brought to people at the downstream of the electric power transmission line. The power transmission line is mainly built by depending on a tower pole, and the power transmission line is damaged after the tower pole is damaged in ground disasters.
The invention patent with the application number of 201810815368.1 discloses a partitioned evaluation early warning method and a partitioned evaluation early warning system for power transmission line geological disasters, and the method comprises the steps of obtaining a plurality of index partitioned distribution maps based on evaluation index data of a power transmission line geological disaster risk evaluation area and a plurality of pre-partitioned partitions; calculating each index partition distribution map on a geographic information system by using a risk evaluation model to obtain a power transmission line geological disaster risk distribution map; and carrying out power transmission line region risk assessment and power transmission line tower risk assessment based on the assessed region in the power transmission line geological disaster risk distribution map. According to the invention, the evaluation area is divided into a plurality of sub-areas according to different geological environment characteristics, respective risk evaluation systems are respectively determined according to the geological environment characteristics of the sub-areas, and differential regional evaluation is carried out, so that the evaluation result is more accurate particularly when the geological disaster risk evaluation of a large area is carried out. The method is mainly used for evaluating the regional risks, cannot perform early warning according to specific data at different times, and cannot play a good role in early warning and alarming.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a ground disaster early warning system for a power transmission line, which acquires the triaxial acceleration and inclination data of a tower pole through an intelligent three-dimensional posture and vibration monitor, acquires the three-dimensional ground deformation data of a tower footing through a GNSS ground displacement monitor, and analyzes the inclination data of the tower pole, the triaxial acceleration data of the tower pole and the three-dimensional ground deformation data of the tower footing by an edge computing server, so that early warning and fault warning for the inclination of the tower pole caused by external force are realized, event warning and severity evaluation are provided for mechanical collision external force damage, the integral stable state of the tower footing is evaluated at the same time, and the disaster early warning for the power transmission line is comprehensively performed.
In order to achieve the above purpose, the solution adopted by the invention is as follows: a power transmission line ground disaster early warning system comprises an intelligent three-dimensional attitude and vibration monitor, a GNSS surface displacement monitor and an edge calculation server;
the intelligent three-dimensional posture and vibration monitor is fixedly arranged on a tower pole of the power transmission line and is used for acquiring triaxial acceleration data and inclination data of the tower pole; the data output end of the intelligent three-dimensional posture and vibration monitor is connected with the data input end of the edge calculation server and used for transmitting the acquired tower three-axis acceleration data and the acquired inclination data to the edge calculation server;
the GNSS surface displacement monitor is arranged on a tower footing of the tower pole and is used for collecting three-dimensional surface deformation data of the tower footing; the data output end of the GNSS earth surface displacement monitor is connected with the data input end of the edge calculation server and is used for transmitting the acquired tower footing three-dimensional earth surface deformation data to the edge calculation server;
the edge computing server is installed on a tower footing of the tower pole and used for analyzing by combining tower pole inclination data, tower pole three-axis acceleration data and tower footing three-dimensional surface deformation data, early warning and fault warning are performed on the tower pole inclination caused by external force, event warning and severity evaluation are provided for mechanical collision external force damage, and meanwhile the overall stable state of the tower footing is evaluated.
The intelligent three-dimensional posture and vibration monitoring instruments are multiple and are uniformly distributed and installed on the tower pole.
The intelligent three-dimensional posture and vibration monitor is 3, and is respectively installed at the top of the tower pole, the middle part of the tower pole and the lower part of the tower pole.
The three-dimensional gesture of intelligence and vibration monitor include triaxial acceleration sensor, angular transducer, central processing circuit and data transmission circuit, triaxial acceleration sensor be used for gathering triaxial acceleration data and with triaxial acceleration data transmission to central processing circuit, angular transducer be used for gathering the angular transducer and transmit central processing circuit, data transmission circuit be used for uploading the triaxial acceleration data and the angular transducer data of gathering, central processing circuit be used for according to the triaxial acceleration data of gathering and the acquisition frequency of angular transducer adjustment, the frequency of uploading of adjustment data transmission circuit simultaneously.
The intelligent three-dimensional posture and vibration monitor further comprises a memory circuit, wherein the memory circuit is connected with the central processing circuit and used for storing the collected triaxial acceleration data and the collected inclination angle data.
The data transmission circuit is a wireless data transmission circuit, a wired data transmission circuit or a combination of the wireless data transmission circuit and the wired data transmission circuit, a control end of the wireless data transmission circuit is connected with a wireless transmission signal control end of the central processing circuit, and a control end of the wired data transmission circuit is connected with a wired transmission signal control end of the central processing circuit.
The intelligent three-dimensional posture and vibration monitor further comprises a power supply circuit, the power supply circuit supplies power for the triaxial acceleration sensor, the inclination angle sensor, the data transmission circuit and the central processing circuit, the power supply circuit comprises a voltage stabilizing circuit and a storage battery, the voltage source output end of the voltage stabilizing circuit is respectively connected with the triaxial acceleration sensor, the inclination angle sensor, the data transmission circuit and the central processing circuit, and the input end of the voltage stabilizing circuit is connected with the power supply end of the storage battery.
The system also comprises an environment monitoring device, wherein the environment monitoring device is installed on the ground close to the position of the tower pole and used for acquiring the environment parameters of the position of the tower pole, the data output end of the environment monitoring device is connected with the data input end of the edge computing server and used for transmitting the acquired environment parameters to the edge computing server, and the edge computing server is used for analyzing and evaluating the line safety by combining the environment parameters, the tower pole inclination data, the tower pole three-axis acceleration data and the tower footing three-dimensional earth surface deformation data.
The three-dimensional earth surface deformation data of the tower footing comprises plane displacement and vertical displacement of the tower footing, tower rod inclination caused by external force comprises tower foundation deformation and tower rod inclination caused by uneven settlement, and mechanical collision external force damage comprises earthquake damage, wind damage and collapse rockfall damage.
The invention has the beneficial effects that:
(1) this system passes through intelligent three-dimensional gesture and vibration monitor collection tower pole triaxial acceleration and slope data, gather the three-dimensional earth's surface deformation data of tower footing through GNSS earth's surface displacement monitor, the edge calculation server is through to tower pole slope data, tower pole triaxial acceleration data and the three-dimensional earth's surface deformation data of tower footing carry out the analysis, the realization makes early warning and malfunction alerting to the tower pole slope that external force leads to, destroy to mechanical collision external force and provide incident warning and severity aassessment, the overall stability of evaluation tower footing simultaneously, synthesize and carry out transmission line calamity early warning.
(2) The intelligent three-dimensional posture and vibration monitor can adjust the acquisition frequency of the triaxial acceleration sensor and the inclination angle sensor according to the acquired triaxial acceleration data and the acquired inclination angle data, and meanwhile, the uploading frequency of the data transmission circuit is adjusted, so that the preset frequency is used when no abnormality occurs, the power consumption is reduced, more data can be acquired when the abnormality occurs, and a data basis is provided for ground disasters and the like.
(3) The system is provided with an environment monitoring device for acquiring environment parameters of the position of the tower pole, strong rainfall and other weather can affect the geology, strong wind can affect the triaxial acceleration and the inclination data of the tower pole, and the hidden danger of ground disaster or damage to the power transmission line exists, so that the line safety is evaluated and early-warned more accurately and timely based on the environment parameters.
Drawings
FIG. 1 is a block diagram of a system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a second system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an intelligent three-dimensional attitude and vibration monitor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
The invention is further described below with reference to the accompanying drawings:
example one
In one embodiment of the present invention, as shown in fig. 1, a power transmission line ground disaster early warning system is disclosed,
the system comprises an intelligent three-dimensional attitude and vibration monitor, a GNSS surface displacement monitor and an edge calculation server; the intelligent three-dimensional posture and vibration monitor is fixedly arranged on a tower pole of the power transmission line and is used for acquiring triaxial acceleration data and inclination data of the tower pole;
the data output end of the intelligent three-dimensional posture and vibration monitor is connected with the data input end of the edge calculation server and used for transmitting the acquired tower three-axis acceleration data and the acquired inclination data to the edge calculation server;
the GNSS surface displacement monitor is arranged on a tower footing of the tower pole and is used for collecting three-dimensional surface deformation data of the tower footing;
the data output end of the GNSS earth surface displacement monitor is connected with the data input end of the edge calculation server and is used for transmitting the acquired tower footing three-dimensional earth surface deformation data to the edge calculation server;
the edge computing server is installed on a tower footing of the tower pole and used for analyzing by combining tower pole inclination data, tower pole three-axis acceleration data and tower footing three-dimensional surface deformation data, early warning and fault warning are conducted on the tower pole inclination caused by external force, event warning and severity evaluation are provided for mechanical collision external force damage, meanwhile, the overall stable state of the tower footing is evaluated, and power transmission line disaster warning is comprehensively conducted.
The three-dimensional earth surface deformation data of the tower footing comprises plane displacement and vertical displacement of the tower footing, tower rod inclination caused by external force comprises tower foundation deformation and tower rod inclination caused by uneven settlement, and mechanical collision external force damage comprises earthquake damage, wind damage and collapse rockfall damage.
In this embodiment, three-dimensional gesture of intelligence and vibration monitor are 3, install respectively at the pylon top, pylon middle part and pylon lower part, because the pylon has certain height, and the column foot is fixed at the earth's surface, consequently when receiving the exogenic action, the triaxial acceleration and the gradient of each position of pylon exist certain difference, and the pylon can break under some abnormal conditions, triaxial acceleration and the slope data through different positions carry out the position that can simply confirm the pylon rupture, repair the direction that the personnel provided preparation material rush-repair tools etc. for rush-repair, accelerate maintenance speed, more be favorable to the quick recovery power supply. Of course, in other embodiments, any number may be provided according to specific requirements.
The analysis by combining the tower rod inclination data, the tower rod triaxial acceleration data and the tower footing three-dimensional surface deformation data comprises the following steps: if the tower pole inclination data, the triaxial acceleration data and the tower footing three-dimensional surface deformation data are continuously unchanged, the tower pole and the tower footing are stable, and the tower pole inclination caused by external force does not occur;
if the tower rod inclination data and the tower rod triaxial acceleration data are changed regularly and no rule exists in a plurality of earthquake response spectrum characteristic periods, and the tower footing three-dimensional surface deformation data are continuously unchanged, the posture of the tower rod is changed under the action of external force, the tower rod inclination data is compared with an inclination threshold value, and the triaxial acceleration data is compared with a triaxial acceleration threshold value, if the tower rod inclination data is smaller than a first inclination threshold value and the triaxial acceleration data is smaller than the first triaxial acceleration threshold value, the influence of the tower rod inclination and the acceleration on the tower rod is small, no alarm is needed, the severity of an event is A level and slight; if the inclination data of the tower pole is larger than the first inclination threshold value and is kept unchanged, and the triaxial acceleration data is smaller than the first triaxial acceleration threshold value, the tower pole has a breaking risk, fault alarm is carried out, and the severity of the event is D level, which is very serious; if the tower pole inclination data is larger than the first inclination threshold value and the triaxial acceleration data is larger than the first triaxial acceleration threshold value, the influence of the tower pole inclination and the acceleration on the tower pole is large, early warning and real-time monitoring are carried out on the tower pole inclination and damage, and the severity of the event is grade C and serious;
if the tower pole inclination data and the tower pole triaxial acceleration data are changed regularly and no rule exists in a plurality of earthquake response spectrum characteristic periods, and the three-dimensional tower foundation surface deformation data continuously change over a preset difference value, the tower foundation surface is deformed violently, fault alarm is carried out, and the severity of the event is D level and is very serious;
if the inclination data of the tower pole continuously increases, the triaxial acceleration data of the tower pole does not change, and the three-dimensional surface deformation data of the tower footing continuously changes to be smaller than a preset difference value, the surface of the tower footing slowly deforms, the overall stability of the tower footing becomes poor, early warning is carried out, and the severity of the event is grade B and is not serious;
if the tower rod inclination data and the tower rod triaxial acceleration data are changed regularly and are regular in a plurality of earthquake response spectrum characteristic periods, and the tower footing three-dimensional surface deformation data are continuously unchanged, the tower rod posture is changed under the earthquake effect, the tower rod inclination data is compared with the inclination threshold value, and the triaxial acceleration data is compared with the triaxial acceleration threshold value, if the tower rod inclination data is smaller than the second inclination threshold value and the triaxial acceleration data is smaller than the second triaxial acceleration threshold value, the earthquake waves are smaller, earthquake alarm is carried out, and the severity of the event is grade B and is not serious; if the tower rod inclination data is larger than the second inclination threshold and smaller than the third inclination threshold, and the triaxial acceleration data is larger than the second triaxial acceleration threshold and smaller than the third triaxial acceleration threshold, the earthquake waves are large, earthquake alarming is carried out, the severity of the event is C-level and serious, and if the tower rod inclination data is larger than the third inclination threshold and the triaxial acceleration data is larger than the third triaxial acceleration threshold, the earthquake waves are very large, earthquake alarming is carried out, and the severity of the event is D-level and serious.
The first triaxial acceleration threshold and the first inclination threshold are determined according to the bending stress which can be borne by the tower pole, the acceleration of the tower pole is the first triaxial acceleration threshold under the action of the half bending stress, the inclination of the tower pole is the first inclination threshold, and the second triaxial acceleration threshold, the second inclination threshold, the third triaxial acceleration threshold and the third inclination threshold are determined according to the rated earthquake-proof grade of the tower pole, the earthquake motion peak acceleration and the earthquake response spectrum characteristic period. The second acceleration threshold is one-half of the underground vibration peak acceleration of the rated seismic level, and the second inclination threshold is the inclination of the tower rod when the second acceleration threshold is reached; the third acceleration threshold is a peak seismic acceleration at a rated seismic level, and the third inclination threshold is a tower inclination at which the third acceleration threshold is reached.
Example two
In another embodiment of the present invention, as shown in fig. 2, a power transmission line ground disaster early warning system is disclosed, which includes an intelligent three-dimensional attitude and vibration monitor, a GNSS earth surface displacement monitor, an environment monitoring device, and an edge computing server; the intelligent three-dimensional posture and vibration monitor is fixedly arranged on a tower pole of the power transmission line and is used for acquiring triaxial acceleration data and inclination data of the tower pole; the data output end of the intelligent three-dimensional posture and vibration monitor is connected with the data input end of the edge calculation server and used for transmitting the acquired tower three-axis acceleration data and the acquired inclination data to the edge calculation server; the GNSS surface displacement monitor is arranged on a tower footing of the tower pole and is used for collecting three-dimensional surface deformation data of the tower footing; the data output end of the GNSS earth surface displacement monitor is connected with the data input end of the edge calculation server and is used for transmitting the acquired tower footing three-dimensional earth surface deformation data to the edge calculation server; the environment monitoring device is arranged on the ground close to the tower pole and used for collecting the environment parameters of the position of the tower pole, and the data output end of the environment monitoring device is connected with the data input end of the edge computing server and used for transmitting the collected environment parameters to the edge computing server; the edge computing server is installed on a tower footing of a tower pole and used for analyzing in combination with environmental parameters, tower pole inclination data, tower pole triaxial acceleration data and tower footing three-dimensional surface deformation data, early warning and fault warning are conducted on tower pole inclination caused by external force, event warning and severity evaluation are provided for mechanical collision external force damage, meanwhile, the overall stable state of the tower footing is evaluated, power transmission line disaster warning is comprehensively conducted, and line safety is evaluated.
The three-dimensional earth surface deformation data of the tower footing comprises plane displacement and vertical displacement of the tower footing, tower rod inclination caused by external force comprises tower foundation deformation and tower rod inclination caused by uneven settlement, and mechanical collision external force damage comprises earthquake damage, wind damage and collapse rockfall damage.
In this embodiment, the intelligent three-dimensional posture and vibration monitor is four, and evenly distributed is on the tower pole.
The analysis by combining the environmental parameters, the tower rod inclination data, the tower rod triaxial acceleration data and the tower footing three-dimensional surface deformation data comprises the following steps: if the tower pole inclination data, the triaxial acceleration data and the tower footing three-dimensional surface deformation data are continuously unchanged, and the environment is stable, no rainfall exists and no strong wind exists, the tower pole and the tower footing are stable, and the tower pole inclination caused by external force does not occur;
if the tower rod inclination data and the tower rod triaxial acceleration data are changed regularly and no rule exists in a plurality of earthquake response spectrum characteristic periods, and the tower footing three-dimensional surface deformation data are continuously unchanged, the tower rod posture is changed under the action of external force, whether strong wind exists or not is judged by combining environmental data, the tower rod inclination data and the inclination threshold value are compared, and if the tower rod inclination data are smaller than the first inclination threshold value and the triaxial acceleration data are smaller than the first triaxial acceleration threshold value, the tower rod inclination and acceleration have small influence on the tower rod, the wind power is small, an alarm is not needed, and the severity of an event is A level and is slight; if the inclination data of the tower pole is larger than the first inclination threshold value and is kept unchanged, and the triaxial acceleration data is smaller than the first triaxial acceleration threshold value, the tower pole has a breaking risk, fault alarm is carried out, and the severity of the event is D level, which is very serious; if the tower pole inclination data is larger than the first inclination threshold value and the triaxial acceleration data is larger than the first triaxial acceleration threshold value, the tower pole inclination and acceleration have larger influence on the tower pole, the wind power is larger, early warning and real-time monitoring are carried out on the tower pole inclination and damage, and the severity of the event is grade C and serious;
if the tower pole inclination data and the tower pole triaxial acceleration data are changed regularly and no rule exists in a plurality of earthquake response spectrum characteristic periods, the three-dimensional tower foundation surface deformation data continuously change to exceed a preset difference value, and in combination with environmental parameters, the environmental humidity is high, and excessive rainfall occurs recently, the tower foundation surface is severely deformed, fault alarm is performed, and the severity of an event is D level and is very serious;
if the inclination data of the tower rod continuously increases, the triaxial acceleration data of the tower rod does not change, the three-dimensional earth surface deformation data of the tower foundation continuously changes by less than a preset difference value, and the tower foundation earth surface slowly deforms in combination with environmental parameters, the environmental humidity is normal, and excessive rainfall does not occur in the near term, so that the overall stability of the tower foundation is poor, early warning is performed, and the severity of the event is grade B and is not serious;
if the tower rod inclination data and the tower rod triaxial acceleration data are changed regularly and are regular in a plurality of earthquake response spectrum characteristic periods, and the tower footing three-dimensional surface deformation data are continuously unchanged, the tower rod posture is changed under the earthquake effect, the tower rod inclination data is compared with the inclination threshold value, and the triaxial acceleration data is compared with the triaxial acceleration threshold value, if the tower rod inclination data is smaller than the second inclination threshold value and the triaxial acceleration data is smaller than the second triaxial acceleration threshold value, the earthquake waves are smaller, earthquake alarm is carried out, and the severity of the event is grade B and is not serious; if the tower rod inclination data is larger than the second inclination threshold and smaller than the third inclination threshold, and the triaxial acceleration data is larger than the second triaxial acceleration threshold and smaller than the third triaxial acceleration threshold, the earthquake waves are large, earthquake alarming is carried out, the severity of the event is C-level and serious, and if the tower rod inclination data is larger than the third inclination threshold and the triaxial acceleration data is larger than the third triaxial acceleration threshold, the earthquake waves are very large, earthquake alarming is carried out, and the severity of the event is D-level and serious.
The first triaxial acceleration threshold and the first inclination threshold are determined according to the bending stress which can be borne by the tower pole, the acceleration of the tower pole is the first triaxial acceleration threshold under the action of the half bending stress, the inclination of the tower pole is the first inclination threshold, and the second triaxial acceleration threshold, the second inclination threshold, the third triaxial acceleration threshold and the third inclination threshold are determined according to the rated earthquake-proof grade of the tower pole, the earthquake motion peak acceleration and the earthquake response spectrum characteristic period. The second triaxial acceleration threshold is one-half of the rated seismic grade underground vibration peak acceleration, and the second inclination threshold is the inclination of the tower rod when the second triaxial acceleration threshold is reached; the third triaxial acceleration threshold is a seismic peak acceleration below a rated seismic level, and the third inclination threshold is a tower inclination when the third triaxial acceleration threshold is reached.
As shown in fig. 3, the three-dimensional gesture of intelligence and vibration monitor include triaxial acceleration sensor, tilt sensor, central processing circuit and data transmission circuit, triaxial acceleration sensor be used for gathering triaxial acceleration data and with triaxial acceleration data transmission to central processing circuit, tilt sensor be used for gathering tilt data and transmit central processing circuit, data transmission circuit be used for uploading triaxial acceleration data and the tilt data of gathering, central processing circuit be used for adjusting triaxial acceleration sensor and tilt sensor's collection frequency according to triaxial acceleration data and the tilt data of gathering, adjust data transmission circuit's the frequency of uploading simultaneously.
The intelligent three-dimensional posture and vibration monitor further comprises a memory circuit, wherein the memory circuit is connected with the central processing circuit and used for storing the collected triaxial acceleration data and the collected inclination angle data.
The data transmission circuit is a wireless data transmission circuit, a wired data transmission circuit or a combination of the wireless data transmission circuit and the wired data transmission circuit, a control end of the wireless data transmission circuit is connected with a wireless transmission signal control end of the central processing circuit, and a control end of the wired data transmission circuit is connected with a wired transmission signal control end of the central processing circuit.
The intelligent three-dimensional posture and vibration monitor further comprises a power supply circuit, the power supply circuit supplies power for the triaxial acceleration sensor, the inclination angle sensor, the data transmission circuit and the central processing circuit, the power supply circuit comprises a voltage stabilizing circuit and a storage battery, the voltage source output end of the voltage stabilizing circuit is respectively connected with the triaxial acceleration sensor, the inclination angle sensor, the data transmission circuit and the central processing circuit, and the input end of the voltage stabilizing circuit is connected with the power supply end of the storage battery.
The power transmission line ground disaster early warning system collects tower mast triaxial acceleration and inclination data through an intelligent three-dimensional posture and vibration monitor, collects tower footing three-dimensional ground surface deformation data through a GNSS ground surface displacement monitor, an edge computing server analyzes the tower mast inclination data, the tower mast triaxial acceleration data and the tower footing three-dimensional ground surface deformation data, early warning and fault warning are carried out on tower mast inclination caused by external force, event warning and severity evaluation are provided for mechanical collision external force damage, the overall stability state of a tower footing is evaluated simultaneously, and power transmission line disaster early warning is comprehensively carried out.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. A power transmission line ground disaster early warning system is characterized in that: the system comprises an intelligent three-dimensional attitude and vibration monitor, a GNSS surface displacement monitor, an environment monitoring device and an edge computing server;
the intelligent three-dimensional posture and vibration monitor is fixedly arranged on a tower pole of the power transmission line and is used for acquiring triaxial acceleration data and inclination data of the tower pole; the data output end of the intelligent three-dimensional posture and vibration monitor is connected with the data input end of the edge calculation server and used for transmitting the acquired tower three-axis acceleration data and the acquired inclination data to the edge calculation server;
the GNSS surface displacement monitor is arranged on a tower footing of the tower pole and is used for collecting three-dimensional surface deformation data of the tower footing; the data output end of the GNSS earth surface displacement monitor is connected with the data input end of the edge calculation server and is used for transmitting the acquired tower footing three-dimensional earth surface deformation data to the edge calculation server;
the edge computing server is installed on a tower footing of the tower pole and is used for analyzing by combining tower pole inclination data, tower pole three-axis acceleration data and tower footing three-dimensional surface deformation data, making early warning and fault warning on tower pole inclination caused by external force, providing event warning and severity evaluation for mechanical collision external force damage, and evaluating the integral stable state of the tower footing;
the environment monitoring device install subaerial in the department of close proximity tower pole for gather the environmental parameter of tower pole position, the data output end of environment monitoring device is connected with the data input end of marginal calculation server, be used for transmitting the environmental parameter who gathers to marginal calculation server, marginal calculation server combines environmental parameter, tower pole slope data, tower pole triaxial acceleration data and the three-dimensional earth's surface deformation data of column foot carry out the analysis, compare each data and the threshold value that corresponds the default, judge the severity level of incident, aassessment circuit safety specifically is: if the tower pole inclination data, the triaxial acceleration data and the tower footing three-dimensional surface deformation data are continuously unchanged, and the environment is stable, no rainfall exists and no strong wind exists, the tower pole and the tower footing are stable, and the tower pole inclination caused by external force does not occur;
if the tower rod inclination data and the tower rod triaxial acceleration data are changed regularly and no rule exists in a plurality of earthquake response spectrum characteristic periods, and the tower footing three-dimensional surface deformation data are continuously unchanged, the tower rod posture is changed under the action of external force, whether strong wind exists or not is judged by combining environmental data, the tower rod inclination data and the inclination threshold value are compared, and if the tower rod inclination data are smaller than the first inclination threshold value and the triaxial acceleration data are smaller than the first triaxial acceleration threshold value, the tower rod inclination and acceleration have small influence on the tower rod, the wind power is small, an alarm is not needed, and the severity of an event is A level and is slight;
if the inclination data of the tower pole is larger than the first inclination threshold value and is kept unchanged, and the triaxial acceleration data is smaller than the first triaxial acceleration threshold value, the tower pole has a breaking risk, fault alarm is carried out, and the severity of the event is D level, which is very serious;
if the tower pole inclination data is larger than the first inclination threshold value and the triaxial acceleration data is larger than the first triaxial acceleration threshold value, the tower pole inclination and acceleration have larger influence on the tower pole, the wind power is larger, early warning and real-time monitoring are carried out on the tower pole inclination and damage, and the severity of the event is grade C and serious;
if the tower pole inclination data and the tower pole triaxial acceleration data are changed regularly and no rule exists in a plurality of earthquake response spectrum characteristic periods, the three-dimensional tower foundation surface deformation data continuously change to exceed a preset difference value, and in combination with environmental parameters, the environmental humidity is high, and excessive rainfall occurs recently, the tower foundation surface is severely deformed, fault alarm is performed, and the severity of an event is D level and is very serious;
if the inclination data of the tower rod continuously increases, the triaxial acceleration data of the tower rod does not change, the three-dimensional earth surface deformation data of the tower foundation continuously changes by less than a preset difference value, and the tower foundation earth surface slowly deforms in combination with environmental parameters, the environmental humidity is normal, and excessive rainfall does not occur in the near term, so that the overall stability of the tower foundation is poor, early warning is performed, and the severity of the event is grade B and is not serious;
if the tower rod inclination data and the tower rod triaxial acceleration data are changed regularly and are regular in a plurality of earthquake response spectrum characteristic periods, and the tower footing three-dimensional surface deformation data are continuously unchanged, the tower rod posture is changed under the earthquake effect, the tower rod inclination data is compared with the inclination threshold value, and the triaxial acceleration data is compared with the triaxial acceleration threshold value, if the tower rod inclination data is smaller than the second inclination threshold value and the triaxial acceleration data is smaller than the second triaxial acceleration threshold value, the earthquake waves are smaller, earthquake alarm is carried out, and the severity of the event is grade B and is not serious;
if the tower pole inclination data is larger than the second inclination threshold and smaller than the third inclination threshold, and the triaxial acceleration data is larger than the second triaxial acceleration threshold and smaller than the third triaxial acceleration threshold, earthquake waves are large, earthquake alarm is carried out, and the severity of the event is grade C and serious;
if the tower pole inclination data is larger than the third inclination threshold value and the triaxial acceleration data is larger than the third triaxial acceleration threshold value, the earthquake waves are very large, earthquake alarming is carried out, and the severity of the event is D level and is very serious.
2. The electric transmission line ground disaster early warning system according to claim 1, characterized in that: the intelligent three-dimensional posture and vibration monitoring instruments are multiple and are uniformly distributed and installed on the tower pole.
3. The electric transmission line ground disaster early warning system according to claim 2, characterized in that: the intelligent three-dimensional posture and vibration monitor is 3, and is respectively installed at the top of the tower pole, the middle part of the tower pole and the lower part of the tower pole.
4. The electric transmission line ground disaster early warning system according to claim 1, characterized in that: the three-dimensional gesture of intelligence and vibration monitor include triaxial acceleration sensor, angular transducer, central processing circuit and data transmission circuit, triaxial acceleration sensor be used for gathering triaxial acceleration data and with triaxial acceleration data transmission to central processing circuit, angular transducer be used for gathering the angular transducer and transmit central processing circuit, data transmission circuit be used for uploading the triaxial acceleration data and the angular transducer data of gathering, central processing circuit be used for according to the triaxial acceleration data of gathering and the acquisition frequency of angular transducer adjustment, the frequency of uploading of adjustment data transmission circuit simultaneously.
5. The electric transmission line ground disaster early warning system according to claim 4, characterized in that: the intelligent three-dimensional posture and vibration monitor further comprises a memory circuit, wherein the memory circuit is connected with the central processing circuit and used for storing the collected triaxial acceleration data and the collected inclination angle data.
6. The electric transmission line ground disaster early warning system according to claim 5, characterized in that: the data transmission circuit is a wireless data transmission circuit, a wired data transmission circuit or a combination of the wireless data transmission circuit and the wired data transmission circuit, a control end of the wireless data transmission circuit is connected with a wireless transmission signal control end of the central processing circuit, and a control end of the wired data transmission circuit is connected with a wired transmission signal control end of the central processing circuit.
7. The electric transmission line ground disaster early warning system according to claim 4, characterized in that: the intelligent three-dimensional posture and vibration monitor further comprises a power supply circuit, the power supply circuit supplies power for the triaxial acceleration sensor, the inclination angle sensor, the data transmission circuit and the central processing circuit, the power supply circuit comprises a voltage stabilizing circuit and a storage battery, the voltage source output end of the voltage stabilizing circuit is respectively connected with the triaxial acceleration sensor, the inclination angle sensor, the data transmission circuit and the central processing circuit, and the input end of the voltage stabilizing circuit is connected with the power supply end of the storage battery.
8. The electric transmission line ground disaster early warning system according to claim 1, characterized in that: the three-dimensional earth surface deformation data of the tower footing comprises plane displacement and vertical displacement of the tower footing, tower rod inclination caused by external force comprises tower foundation deformation and tower rod inclination caused by uneven settlement, and mechanical collision external force damage comprises earthquake damage, wind damage and collapse rockfall damage.
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| CN111189533B (en) * | 2019-12-26 | 2021-11-16 | 深圳供电局有限公司 | External force invasion monitoring method and device, computer equipment and storage medium |
| CN114111552B (en) * | 2021-11-29 | 2024-07-02 | 广州吉欧电子科技有限公司 | Landslide displacement monitoring method and device based on GNSS antenna and MEMS |
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| CN114710803A (en) * | 2022-06-07 | 2022-07-05 | 武汉慧联无限科技有限公司 | Monitoring method, device, equipment, system and storage medium for base station antenna |
| CN115358634B (en) * | 2022-10-13 | 2023-03-24 | 国网浙江宁波市鄞州区供电有限公司 | Real-time monitoring method, server and system based on power line pole state |
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| CN115371535A (en) * | 2022-10-26 | 2022-11-22 | 广东电网有限责任公司佛山供电局 | Power infrastructure monitoring system based on satellite positioning |
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