CN106404071A - Online transmission line tower state monitoring device and detection method thereof - Google Patents
Online transmission line tower state monitoring device and detection method thereof Download PDFInfo
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- CN106404071A CN106404071A CN201610963936.3A CN201610963936A CN106404071A CN 106404071 A CN106404071 A CN 106404071A CN 201610963936 A CN201610963936 A CN 201610963936A CN 106404071 A CN106404071 A CN 106404071A
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Abstract
The invention discloses an online transmission line tower state monitoring device in a vulnerable geological environment and a detection method thereof. By using the special position layout of strain sensors, data capable of identifying the state of the tower are acquired, the online tower monitoring purpose is achieved, and a timely alarm is given in a condition in which the tower is unsafe. The online transmission line tower state monitoring device comprises at least two strain sensors, the strain sensors are arranged on a crossbeam between the tower body and a tower base; the crossbeam comprises a crossbeam main material in a rectangular frame form and crossbeam oblique materials arranged in the crossbeam main material; adjacent crossbeam oblique materials are arranged in a crossed mode; the strain sensors are arranged on different crossbeam oblique materials; and the included angle between layout directions of two strain sensors is smaller than 180 DEG but larger than 0 DEG.
Description
Technical field
Iron tower of power transmission line monitoring resultses field of the present invention, under a kind of fragility geological environment, electric power line pole tower state is online
Monitoring device and its detection method.
Background technology
The steel tower of power delivery circuit, plays in power engineering and lifts electrical lead and be allowed to keep suitable insulation against ground distance
Effect.In Structural Engineering technical term, steel tower is also referred to as pylon.According to version and loading characteristic, electric power pylon
Stay-supported and two kinds of self-supporting can be divided into.For stayed tower, not only the resistance to torsion of tower body is reported to the leadship after accomplishing a task, once and steel tower base
Plinth settles, then bracing wire can be deactivated, and so easily causes shaft tower to tilt and then structural instability, wire breaking and tower falling
Accident.By contrast, self-supporting electric power pylon have the characteristics that not limited by landform, take up an area less and also good stability.Therefore, certainly
Vertical steel tower has obtained widely used in power system.Present invention is generally directed to the Condition Monitoring Technology of self-supporting tower.
Traditional steel tower status monitoring relies on artificial line walking to carry out.This method still retains now, but there is workload
Greatly, the degree of accuracy is low, high cost the problems such as.Occurred in that steel tower on-line condition monitoring technology later, to divide according to measurand, substantially
Two types can be divided into.One kind is at tower body 2/3 and tower top arrangement inclination sensor, the inclination of direct measurement tower body.Separately
One class is to arrange inclination sensor, strain gauge, vibrating sensor, microclimate sensor, pulling force sensor on tower body, take the photograph
As first-class, obtain the comprehensive stress of tower body, the total data of stress, outward appearance and environment.The information that sensor obtains, typically can lead to
Cross the wireless communication means such as GPRS/GSM/CDMA/3G/4G, WiFi, Zigbee, bluetooth, the Big Dipper or directly utilize power communication
Optical cable, data is passed back control centre.The safe shape of shaft tower is analyzed, judged to the computer of control centre, according to the information obtaining,
State.These sensors and communicator, typically pass through solar energy, battery, small-size wind power-generating, phase line/ground wire sensing power taking
Obtain electric energy etc. mode.Additionally, also having some technological inventions to be to start with from sensor, such as go to survey using special frame for movement
The angle of inclination of gauge rod tower or application Fibre Optical Sensor replace resistance stress section and go to measure pylon stress etc..These new skills above-mentioned
Art, compared to traditional artificial line walking, drastically increases the order of accuarcy of shaft tower status monitoring, is conducive to the peace of power system
Row for the national games.But as a whole, these technological inventions existing, in the electrical network practical application of southwest, occur in that some problems：
1) judge the safe condition of pylon using tower body inclining as unique standard, in practice insufficient the asking of existent criterion
Topic.According to prior art, tilt phenomenon in pylon, then judge the degree of danger of pylon state according to the size at angle of inclination.
It is possible to that so a kind of situation occurs：Uniform geology sedimentation but does not cause obvious Iron tower incline in column foot.Although this
When be safe according to angle of inclination index steel tower, but the safety coefficient of pylon decreased it may be difficult to keep out additional change
Load.Therefore, only lean on the current detection data at angle of inclination it is difficult to reflect the safe condition of system comprehensively.
2) for constructing with Multi-source Information Fusion such as tower body inclining, wire tension, tower material stress, camera, microclimates
Condition monitoring system although can make up single tilt data criterion insufficient the drawbacks of, but in actual applications, be limited to work as
, often measurement in front technical merit and the adverse circumstances at scene and power difficulty, sensor fault rate of communicator is high, different
The low situation of conflicting between test data, system reliability.Especially in Southwestern China mountain area, local microclimate condition is disliked
Bad, topography and geomorphology is complicated and changeable, and geological disaster takes place frequently, some complicated electric power pylon condition monitoring systems, in practical application effect
Fruit is not good.Therefore, for mountain region unfavorable geology environment, electric power pylon Condition Monitoring Technology is further spread out with research pole, and have must
Will.
Content of the invention
The present invention provides electric power line pole tower state on_line monitoring device and its detection method under a kind of fragility geological environment,
Using the special location layout of strain transducer, obtain the data that can recognize shaft tower state, thus reaching the online prison of shaft tower
Survey purpose, play and accomplish and alarm under shaft tower unsafe condition.
Electric power line pole tower state on_line monitoring device, including at least 2 strain transducers, described strain transducer is installed
On tabula between tower body and column foot, the tabula that tabula is included in the tabula main material and setting tabula main material of rectangle frame is oblique
Material, the oblique material of adjacent tabula is arranged in a crossed manner, and strain transducer is arranged on the oblique material of non-same tabula, the cloth of 2 strain transducers
The angle putting direction is less than 180 degree and is more than 0 degree.
The change of electric power pylon safe condition, comes from the change of steel tower load.Geological disaster can cause inside steel tower
Stress distribution and deformation, suffer from, for column foot, the shaft tower that geological disaster attacks, can be at steel tower bottom after column foot geology differential settlement
Obvious plastic deformation is produced, these position pole stocks are possible to take the lead in reaching yield limit, even if the inclining of shaft tower at portion's tabula
Angle is still in safe range.Meanwhile, the rod member stressing influence that geology differential settlement becomes more than slope to tower body is little.This rule
Rule shows, for the shaft tower status monitoring of Geology disaster invasion and attack, the strain gauge bar being arranged at bottom of towe tabula preferably
On material.And the pole stock of tabula is divided into main material and oblique material.Tiltedly material typically adopts Q235 steel, and its yield limit is than tabula main material, steel tower
Main material is much lower.When steel tower stress changes it is easier to produce deformation.Meanwhile, spot welding, boring arrangement are carried out on oblique material
Bolt also affects less on the safe condition of steel tower.Therefore, the oblique material of tabula is the rational position of sensor mounting arrangements.Above-mentioned this
A little achievements in research, if for electric power pylon on-line condition monitoring it is possible to fewer sensor, build a more pin
To property, more precisely, power consumption and the lower monitoring system of amount of communication data, tilt thus avoiding prior art and relying on single shaft tower
The drawbacks of data or complicated multi-source data.Therefore, strain transducer is arranged on the oblique material of non-same tabula the present invention, and
The angle of the arranged direction of 2 strain transducers is less than 180 degree and is more than 0 degree.One more specific aim, more can be built with this
Precisely, power consumption and the lower monitoring system of amount of communication data, the strain transducer of the present invention only can use 2, and traditional
Detecting system needs substantial amounts of strain transducer, and the position of strain transducer is located on tower body.
Preferably, the quantity of described strain transducer is 2, and this 2 strain transducers are separately positioned on orthogonal setting
The oblique material of 2 tabulas on, 2 strain transducers are orthogonal setting.Using 2 strain transducers of orthogonal setting, have and utilize from two
Strain data is gathered on individual direction, country comprehensively grasps the stressing conditions of shaft tower.
Preferably, the first double-axis tilt sensor also including at tower body 2/3 and being located on shaft tower center line, also wraps
The second double-axis tilt sensor including positioned at shaft tower top and being located on shaft tower center line.
Preferably, because the on-line checking of the present invention is directed to electric power line pole tower, power supply supply, equipment fault probability
It is a technical barrier, traditional technology directly adopts small-sized wind power generation, can generating equipment be whole online detection instrument very much
Power supply, and whole testing equipment is in lasting working condition, and because the duration performance difference of wind energy and solar energy is it is impossible to when long
Between power, once power depletion, in the case of not compensating power supply, whole on-line detecting system is then in stopped status.
In order to solve the above problems, the present invention adopts packet mode, and all the sensors equipment is divided into 2 groups, each group
Sensor all at least includes 1 strain transducer and at least one inclination sensor, specifically：First group of data acquisition end includes
At least one strain transducer and the first double-axis tilt sensor, second group of data acquisition end include at least one strain transducer and
Second double-axis tilt sensor；Meanwhile, 2 switches set are set and control first group of data acquisition end and second group of data acquisition respectively
The power supply at end, is replaced using controller and controls 2 switches set, and specifically, controller controls first group of switch to start, then first group
The strain transducer at data acquisition end and the first double-axis tilt sensor start beginning gathered data, and second group of switch cuts out,
The strain transducer at second group of data acquisition end and the second double-axis tilt sensor do not start, and controller controls second group of switch to open
Dynamic, then the strain transducer at second group of data acquisition end and the second double-axis tilt sensor start beginning gathered data, and first
Group switch cuts out, and the strain transducer at first group of data acquisition end and the first double-axis tilt sensor do not start.Thus permissible
Ensure that one-time detection activity just can collect corresponding data with few sensor, great reducing energy consumption, can be comprehensive
Check that the data of 2 times, to pass judgment on whole shaft tower state, does not affect the detection of whole shaft tower.
Specifically also include data concentrator, described data concentrator includes power management module and controller；
Described controller gathers all strain transducers, the first double-axis tilt sensor, the data of the second double-axis tilt sensor；
Also include first group of switch that be being connected and being controlled by the controller and second group of switch, all strains with power management module
Sensor, the first double-axis tilt sensor, the second double-axis tilt sensor constitute data acquisition end, and described data acquisition end is divided into
2 groups, first group of data acquisition end includes at least one strain transducer and the first double-axis tilt sensor, second group of data acquisition
End includes at least one strain transducer and the second double-axis tilt sensor, and wherein, first group of switch is arranged on first group of data and adopts
On the electric power loop of the strain transducer at collection end and the first double-axis tilt sensor, second group of switch is arranged on second group of data and adopts
On the electric power loop of the strain transducer at collection end and the second double-axis tilt sensor.
Described data concentrator also includes initial data memory module, and initial data memory module obtains for storage control
The data obtaining, also includes data format conversion module, wireless communication module, and data format conversion module standard controller obtains
The data form of data, wireless communication module forwards the data after specification.
In addition, above-mentioned initial data memory module can store data under shaft tower is in normal condition, work as data storage
To after predetermined value, thus starting wireless communication module disposably forward institute's historical data, reach the purpose of low energy consumption.
And above-mentioned design is it is also possible that the startup on duty by turns of each sensor, the initiation culture of wireless communication module reduces, and increases
Plus the service life of the said equipment, reduce equipment probability of failure, meanwhile, by the sensor adopt packet design it is also possible to
Play, after one group of equipment fault, another group of equipment can prevent the equipment job from leading to whole system cannot rise with normal work
Purpose to detection.
Reduce the system power dissipation data traffic on using by the way of be：
Based on the detection method of described electric power line pole tower state on_line monitoring device, comprise the following steps：
S1 step, by strain gauge obtain stress value, by the first double-axis tilt sensor and the second bi-axial tilt sensing
Device detection is along the angle of inclination of line direction and the angle of inclination of cross arm of tower axis direction；
S2 step, acquisition shaft tower angle of inclination, shaft tower angle of inclination,Be along line direction angle of inclination,The angle of inclination of cross arm of tower axis direction, unit is radian；
S3 step, controller obtain shaft tower angle of inclination, stress value,
When value any one in shaft tower angle of inclination, stress value reaches prompting rank, go to S4 step,
When value any one in shaft tower angle of inclination, stress value reaches warning level, go to S5 step,
When value any one in shaft tower angle of inclination, stress value reaches alert levels, go to S6 step,
When value any one in shaft tower angle of inclination, stress value is not up to prompting rank, go to S7 step,
S4 step, controller control power management module so that data collection interval is F1 minute, and controller controls wireless
Communication module sends immediately by after data acquisition,
S5 step, controller control power management module so that data collection interval is F2 minute, and controller controls wireless
Communication module sends immediately by after data acquisition,
S6 step, controller control power management module so that data collection interval is F3 minute, and controller controls wireless
Communication module sends immediately by after data acquisition,
S7 step, controller control power management module so that data collection interval is F0 minute, after each data acquisition
Stamp time tag and store and in storage control, form one group of data, after controller to be stored is filled with Z group, controller controls no
Data is activation in storage control will disposably be gone out, and reset storage control by line communication module,
Wherein, F0 ＞ F1 ＞ F2 ＞ F3.
In addition, the transmission mode of present invention design data by the way, and according to shaft tower angle of inclination, stress value
Which kind of grade is size automatic decision shaft tower state be in, thus start for data-transmission mode, thus can be urgent
In the case of, data is occurred with high-frequency, under normal circumstances data is occurred with low frequency, reach energy consumption minimized purpose, number
The purpose minimizing according to the traffic.
Controller switchs and second at interval of passing through first group of control after F0 minute or F1 minute or F2 minute or F3 minute
Group switch replaces and starts first group of data acquisition end, the shaft tower angle of inclination at second group of data acquisition end, stress value.
For steel pipe electric power line pole tower and 50 meters and level above straight line angle steel electric power line pole tower, its shaft tower inclination angle
The value of the prompting rank of degree is 0.003 radian, the value of the prompting rank of stress value is 15MPa, the early warning at its shaft tower angle of inclination
The value of rank is 0.004 radian, the value of the prompting rank of stress value is 30MPa, the value of the alert levels at its shaft tower angle of inclination
Value for 0.005 radian, the prompting rank of stress value is 50MPa.
For steel pipe electric power line pole tower and less than 50 meters height straight line angle steel electric power line pole towers, its shaft tower angle of inclination
Prompting rank value be 0.003 radian, the value of the prompting rank of stress value be 15MPa, the early warning level at its shaft tower angle of inclination
The value of other prompting rank being worth for 0.007 radian, stress value is 30MPa, and the value of the alert levels at its shaft tower angle of inclination is
0.01 radian, the value of the prompting rank of stress value are 50MPa.
The invention has the beneficial effects as follows：Make full use of column foot with the oblique material of shaft tower junction tabula to column foot stress sensitive
Rule, its STRESS VARIATION is monitored.And combine existing shaft tower based on tower body inclining angle and tilt monitoring technology, two
Person is common to build that number of sensors is moderate, stress and inclination data blend, are more suitable for the shaft tower peace of geology defective region
Total state monitoring system and device, otherwise make up the letter excessively of existing monitoring technology lead to criterion insufficient numerous excessively lead to run
The low deficiency of reliability.Sensor of the present invention, is routine in power department power transmission and transformation equipment state monitoring field
Sensor, technology maturation, be widely used, compared to the prior art, maximum difference be sensor layout design scheme and
The threshold value setting.And the uniformity on hardware device is easy to the popularization and application of the present invention.
Brief description
Fig. 1 is the schematic layout pattern that detection means is arranged on electric power line pole tower.
Fig. 2 is the structural representation of data concentrator.
Fig. 3 is the schematic flow sheet of the present invention.
Fig. 4 is the arrangement schematic diagram of strain transducer.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is made with detailed description further, but embodiments of the present invention
Not limited to this.
Embodiment 1：
As Figure 1-Figure 4, electric power line pole tower includes tower body 1 and column foot 2, is connected using tabula between tower body 1 and column foot 2,
Tabula includes tabula main material and the oblique material of tabula 3, has the mutually orthogonal oblique material 3 of " ten " font two tabulas of intersection here, be in Fig. 1
Shown in arrangement situation in Fig. 4, by the way of spot welding or bolt are fixing, arrange that 2 strain transducers 4 are located at respectively
On the oblique material 3 of two tabulas.On the center line at electric power pylon tower body 2/3 and shaft tower top center line, arrangement the first twin shaft inclines
Tiltedly sensor 6 and the second double-axis tilt sensor 7.Each first double-axis tilt sensor 6 and the second double-axis tilt sensor 7 can
To monitor along line direction angle of inclination（It is referred to as x direction）With cross arm of tower axis direction（It is referred to as y direction）Inclination angle
Degree, evolution is shaft tower angle of inclination measured by this point for the obliquity sensor to the quadratic sum of the two again.Bi-axial tilt senses
After device installation, using the suitable standard angle survey tool in scene, the initial measurement to every double-axis tilt sensor
Calibrated, obtained shaft tower in this accurate initial inclination of point（This portion of techniques is also the conventional means of the art,
This repeats no more）.Here strain gauge and the operation principle of obliquity sensor are all that measurand is converted to voltage
The principle of signal, such as resistance-strain chip or micro electronmechanical principle（MEMS: Micro-Electro-Mechanical
System）Technology.
Data concentrator 8 is located at the cross-arm of shaft tower.Data concentrator 8 adopts power supply 9（The mode of solar energy+battery）
Power supply, data concentrator 8 passes through cordless communication network and remotely located power transmission state monitoring main station system 11 is led to
Letter.Controlled strain sensor 4, the first double-axis tilt sensor 6 and the second double-axis tilt sensor 7 in data concentrator 8 simultaneously
Power supply, each strain transducer 4, the first double-axis tilt sensor 6 and the second double-axis tilt sensor 7 are passed through separate
Parallel operation circuit obtains power supply, and data concentrator 8 adopts separate RS485 bus cable and each strain sensing simultaneously
Device 4, the first double-axis tilt sensor 6 and the second double-axis tilt sensor 7 carry out independent communication.Read each strain transducer
4th, the data of the first double-axis tilt sensor 6 and the second double-axis tilt sensor 7, data concentrator 8 is public to meet national grid
Department's company standard《Device for monitoring inclination of transmission line tower technical specification》（Q/GDW 559-2010）The data form of regulation is borrowed
Cordless communication network is helped to be uploaded to power transmission state monitoring main station system 11.This data form is the known of the art
Data form, will not be described here its detailed regulation.
It should be noted that in Fig. 1, the oblique material of tabula 3 being connected with column foot 2 in tower body 1 is that " ten " font intersects two bars
Material, so arrange strain gauge 4 and 5.Some shaft tower tabulas, oblique material arrangement may be square, square+" ten "
The multi-forms such as font, mixing shape, corresponding strain gauge then can orthogonally arrange 2 and 3, this arrangement, no
Increase the quantity of sensor, reduce the power consumption data traffic, be capable of general equilibrium ground monitoring four tower legs of shaft tower simultaneously again
Geology changes.These strain gauges are both needed to carry temperature-compensating, and are fixed on tower material in the way of spot welding or bolted on connection
On.
Data concentrator 8 serves the power supply of local device, communication, data processing, power consumption control in whole monitoring system
The function of system.Its working condition is shown in the part in Fig. 2 dotted line frame.In terms of power supply, data concentrator 8 is by power supply 9（Solar-electricity
Pond plate+battery）Joint power supply, data concentrator 8 is internal to carry a power management module 803.Power management module gives control
Device processed is powered, and is simultaneous for each strain transducer 4, the first double-axis tilt sensor 6 and second bi-axial tilt of the present embodiment
Sensor 7, output 4 road voltage enters electronic switch Q1.Control signal 807 output high level 1 in controller 805, then the in Q1
K11, K12 in one group of switch connect, and the voltage conversion of power supply 9 is become to meet strain transducer 4, first pair by power management module
Axle inclination sensor 6 rated voltage supplies power for；If control signal 807 output low level 0 in controller 805, the in Q1
Switch K13, K14 in two groups of switches connect, power management module by the voltage conversion of power supply 9 become to meet strain transducer 4, the
The rated voltage of two double-axis tilt sensor 7 supplies power for.So, it is possible to achieve the packet of sensor is powered, reduce system
Power consumption.In communication aspects, strain transducer 4, the first double-axis tilt sensor 6, the letter of the second double-axis tilt sensor 7 collection
Number it is connected at controller 805 in the form of RS485 bus, the data acquisition being given according to Fig. 3 by controller 805 and communication
Stipulated form, reads the data of sensor.After data stamps current time tag first, the inside that there is controller 805 is deposited
In reservoir, it is stored in initial data memory module 802 simultaneously（The block number evidence additionally opened up in controller 805 internal storage
Storage region）In.In data concentrator 8, the capacity of initial data memory module 802 data storage area needs sufficiently large, Neng Goubao
Deposit the data of more than 30 days, otherwise expansible reservoir designs.In initial data memory module 802, data is once store full
, then utilize the principle of first in first out, with the earliest data of new data cover, so circulate.Meanwhile, controller 805 also according to
The data acquisition giving according to Fig. 3 and the stipulated form of communication, if meet the condition uploading data, in controller chip
Read test data in portion's memory, is processed into the form meeting power system professional standard through data format conversion module 804
Afterwards, data is launched by wireless communication module 806.Controller 805 needs internal clocking, then provided accurately by constant-temperature crystal oscillator 801
Oscillator signal.
For transmission tower state on_line monitoring system, system power supply is a difficult problem.Under the present art, power
Consuming than larger part is sensor and communication module.The main method saving energy expense is to try to reduce their startup
Number of times, meets the function of system on-line monitoring simultaneously again.All of sensor is divided into two groups by the present invention, is handed over successively using the two
The mode that temporary substitute is made, can reduce the power consumption of about half, improve the reliability of power supply.Should for employing 2 in the present embodiment
Become sensor, 2 double-axis tilt sensor, Fig. 3 gives the strategy of data acquisition and Control on Communication in data concentrator 8.?
In Fig. 3,2 strain transducers, the data of 2 double-axis tilt sensor collections enter controller in the way of RS485 agreement
805.Controller 805 is analyzed to data, according to the threshold value being previously set, judges the order of severity of shaft tower state, and then really
Determining data acquisition and the time interval of communication is 60 minutes, 30 minutes, 15 minutes or 10 minutes.Under normal circumstances, data set
Middle device starts one group of sensor for 60 minutes to be tested, alternately.If wherein all data all less than prompting rank, count
According to being stored in data concentrator（Its memory capacity at least meets the storage demand of 30 days service datas）.It is filled with 24 groups of data
Afterwards, then the communication module in log-on data concentrator, test data is passed by way of cordless communication network back transmission line of electricity
Status monitoring main station system.If any data has reached prompting rank, data acquisition intervals shorten to 30 minutes, and number
It is uploaded to main station system according to after collection immediately.If any data has reached warning level, data acquisition intervals shorten to
15 minutes（Due to being divided into 2 groups, therefore for each sensor, operating interval is 30 minutes）, data is also
With adopting with biography.If any data has reached alert levels, data acquisition intervals shorten to 10 minutes, and data is with adopting with biography.
The threshold value of sensor is divided into the setting value of prompting/early warning/warning third gear as follows.For obliquity sensor, to steel tube tower and 50 meters
And level above rectilinear angle steel rod tower, it is 0.003/0.004/0.005 radian；And for less than 50 meters height rectilinear angle steel poles
Tower, setting value is 0.003/0.007/0.01 radian.For strain gauge, no matter tower height and model, prompting/early warning/warning
Setting value be respectively 15MPa/30MPa/50MPa.
Specifically, the electric power line pole tower state monitoring apparatus of the present invention, on reducing the system power dissipation data traffic
Using by the way of be that the strain gauge on above-mentioned 2 double-shaft tilt angle sensors and the oblique material of tabula is equally divided into two groups
（Two groups of strain gauges respectively containing 1 double-shaft tilt angle sensor and 1）.Under normal circumstances, data concentrator starts for 60 minutes
One group of sensor is tested, alternately.If, all less than prompting rank, data storage is in data set for wherein all data
In middle device（Its internal storage capacity meets the needs at least storing 30 days service datas）.After being filled with 24 groups of data, then start
Communication module in data concentrator, test data is wirelessly passed back power transmission state monitoring main station system.As
Fruit any data has reached prompting rank, then data acquisition intervals shorten to 30 minutes, and upload immediately after data acquisition
To main station system.If any data has reached warning level, data acquisition intervals shorten to 15 minutes（Due to being divided into
2 groups, therefore for each sensor, operating interval is 30 minutes）, data is also with adopting with biography.If arbitrary number
According to having reached alert levels, then data acquisition intervals shorten to 10 minutes, and data is with adopting with biography.This data acquisition and communication
Frequency, is locally controlled by data concentrator.
In power transmission state monitoring main station system 11, data analyzing and processing software will be responsible for reception wireless communication module and sends out
The data come, and carry out showing, store, safe condition judges, trend prediction.When carrying out safe condition and judge, according to
The setting value of identical prompting/early warning/warning in data concentrator 8, by means such as sound, color, light, using the page, short
The forms such as letter, mail, send shaft tower safety state information.When the data that any sensor is sent has exceeded its history maximum
When, even if being not reaching to the rank pointed out, also will provide information, and reminding administrative staff that the state of this shaft tower is closed
Note.Additionally, the data analyzing and processing software of power transmission state monitoring main station system 11 also can be adopted according to Historical Monitoring data
Simply predict the evolving trend of shaft tower safe condition with the method for time series first-order linear recursion.This method belongs to ability
Routine techniques in domain, will not be described here.
The above, be only presently preferred embodiments of the present invention, and not the present invention is done with any pro forma restriction, every according to
Any simple modification above example made according to the technical spirit of the present invention, equivalent variations, each fall within the protection of the present invention
Within the scope of.
Claims (9)
1. electric power line pole tower state on_line monitoring device it is characterised in that
Including at least 2 strain transducers（4）, described strain transducer is arranged on tower body（1）With column foot（2）Between tabula
On, tabula includes the oblique material of tabula in the tabula main material and setting tabula main material of rectangle frame（3）, the oblique material of adjacent tabula（3）Hand over
Fork setting, strain transducer is arranged on the oblique material of non-same tabula（3）On, 2 strain transducers（4）Arranged direction angle
Less than 180 degree and more than 0 degree.
2. electric power line pole tower state on_line monitoring device according to claim 1 it is characterised in that：Described strain sensing
Device（4）Quantity be 2, and this 2 strain transducers（4）It is separately positioned on the oblique material of 2 tabulas of orthogonal setting（3）On, 2
Strain transducer（4）Be orthogonal setting.
3. electric power line pole tower state on_line monitoring device according to claim 1 it is characterised in that：Also include positioned at tower
At body 2/3 and be located at shaft tower center line on the first double-axis tilt sensor（6）, also include positioned at shaft tower top and be located at shaft tower
The second double-axis tilt sensor on center line（7）.
4. electric power line pole tower state on_line monitoring device according to claim 3 it is characterised in that：
Also include data concentrator（8）, described data concentrator（8）Including power management module（803）And controller（805）；
Described controller（805）Gather all strain transducers（4）, the first double-axis tilt sensor（6）, second bi-axial tilt pass
Sensor（7）Data；
Also include and power management module（803）Device that connect and controlled（805）The first group of switch controlling is opened with second group
Close, all strain transducers（4）, the first double-axis tilt sensor, second double-axis tilt sensor constitute data acquisition end, described
Data acquisition end is divided into 2 groups, and first group of data acquisition end includes at least one strain transducer（4）Sense with the first bi-axial tilt
Device, second group of data acquisition end includes at least one strain transducer（4）With the second double-axis tilt sensor, wherein, open for first group
Close the strain transducer being arranged on first group of data acquisition end（4）On the electric power loop of the first double-axis tilt sensor, second
Group switch is arranged on the strain transducer at second group of data acquisition end（4）On the electric power loop of the second double-axis tilt sensor.
5. electric power line pole tower state on_line monitoring device according to claim 4 it is characterised in that：
Described data concentrator（8）Also include initial data memory module（802）, initial data memory module（802）For depositing
Storage controller（805）The data obtaining, also includes data format conversion module（804）, wireless communication module（806）, data lattice
Formula modular converter（804）Standard controller（805）The data form of the data obtaining, wireless communication module（806）Forward specification
Data afterwards.
6. the detection method based on the electric power line pole tower state on_line monitoring device described in claim 5 is it is characterised in that wrap
Include following steps：
S1 step, by strain gauge obtain stress value, by the first double-axis tilt sensor and the second bi-axial tilt sensing
Device detection is along the angle of inclination of line direction and the angle of inclination of cross arm of tower axis direction；
S2 step, acquisition shaft tower angle of inclination, shaft tower angle of inclination,Be along line direction angle of inclination,
The angle of inclination of cross arm of tower axis direction, unit is radian；
S3 step, controller obtain shaft tower angle of inclination, stress value,
When value any one in shaft tower angle of inclination, stress value reaches prompting rank, go to S4 step,
When value any one in shaft tower angle of inclination, stress value reaches warning level, go to S5 step,
When value any one in shaft tower angle of inclination, stress value reaches alert levels, go to S6 step,
When value any one in shaft tower angle of inclination, stress value is not up to prompting rank, go to S7 step,
S4 step, controller control power management module so that data collection interval is F1 minute, and controller controls wireless
Communication module sends immediately by after data acquisition,
S5 step, controller control power management module so that data collection interval is F2 minute, and controller controls wireless
Communication module sends immediately by after data acquisition,
S6 step, controller control power management module so that data collection interval is F3 minute, and controller controls wireless
Communication module sends immediately by after data acquisition,
S7 step, controller control power management module so that data collection interval is F0 minute, after each data acquisition
Stamp time tag and store storage control（805）One group of data of middle formation, controller to be stored（805）After being filled with Z group, control
Device control wireless communication module processed will be disposably by storage control（805）Interior data is activation is gone out, and resets storage control
Device（805）,
Wherein, F0 ＞ F1 ＞ F2 ＞ F3.
7. the detection method based on the electric power line pole tower state on_line monitoring device described in claim 6 is it is characterised in that go back
Comprise the following steps：
Controller is left by controlling first group of switch and second group at interval of after F0 minute or F1 minute or F2 minute or F3 minute
Close to replace and start first group of data acquisition end, the shaft tower angle of inclination at second group of data acquisition end, stress value.
8. the detection method based on the electric power line pole tower state on_line monitoring device described in claim 6 or 7, its feature exists
In,
For steel pipe electric power line pole tower and 50 meters and level above straight line angle steel electric power line pole tower, its shaft tower angle of inclination
The value of prompting rank is 0.003 radian, the value of the prompting rank of stress value is 15MPa, the warning level at its shaft tower angle of inclination
Value be 0.004 radian, the value of the prompting rank of stress value be 30MPa, the value of the alert levels at its shaft tower angle of inclination is
0.005 radian, the value of the prompting rank of stress value are 50MPa.
9. the detection method based on the electric power line pole tower state on_line monitoring device described in claim 6 or 7, its feature exists
In,
For steel pipe electric power line pole tower and less than 50 meters height straight line angle steel electric power line pole towers, the carrying of its shaft tower angle of inclination
The value showing rank is 0.003 radian, the value of the prompting rank of stress value is 15MPa, the warning level at its shaft tower angle of inclination
The value being worth the prompting rank for 0.007 radian, stress value is 30MPa, and the value of the alert levels at its shaft tower angle of inclination is 0.01
Radian, the value of the prompting rank of stress value are 50MPa.
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| CN114323118A (en) * | 2021-11-26 | 2022-04-12 | 广西电网有限责任公司北海供电局 | Online monitoring and early warning system for electric emergency repair tower and using method thereof |
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