CN108508469A - A kind of electric power tower deformation monitoring system and its monitoring method based on the preposition resolving of the Big Dipper - Google Patents

A kind of electric power tower deformation monitoring system and its monitoring method based on the preposition resolving of the Big Dipper Download PDF

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Publication number
CN108508469A
CN108508469A CN201810345328.5A CN201810345328A CN108508469A CN 108508469 A CN108508469 A CN 108508469A CN 201810345328 A CN201810345328 A CN 201810345328A CN 108508469 A CN108508469 A CN 108508469A
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China
Prior art keywords
monitoring
electric power
subsystem
satellite
base station
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CN201810345328.5A
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Chinese (zh)
Inventor
吕玉祥
杨阳
斯庭勇
稂龙亚
汪玉成
秦浩
王文清
刘才华
黄凯
王红全
刘智威
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State Grid Information and Telecommunication Co Ltd
Anhui Jiyuan Software Co Ltd
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State Grid Information and Telecommunication Co Ltd
Anhui Jiyuan Software Co Ltd
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Priority to CN201810345328.5A priority Critical patent/CN108508469A/en
Publication of CN108508469A publication Critical patent/CN108508469A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining 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
    • G01S19/42Determining position
    • G01S19/43Determining position using carrier phase measurements, e.g. kinematic positioning; using long or short baseline interferometry
    • G01S19/44Carrier phase ambiguity resolution; Floating ambiguity; LAMBDA [Least-squares AMBiguity Decorrelation Adjustment] method
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic means
    • G01B7/02Measuring arrangements characterised by the use of electric or magnetic means for measuring length, width or thickness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic means
    • G01B7/16Measuring arrangements characterised by the use of electric or magnetic means for measuring the deformation in a solid, e.g. by resistance strain gauge
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels

Abstract

The present invention relates to a kind of electric power tower deformation monitoring system and its monitoring method based on the preposition resolving of the Big Dipper, including base station unit subsystem, Satellite Observations for obtaining base station, and the Satellite Observations of the base station are sent to monitoring dot element subsystem;Dot element subsystem is monitored, the Satellite Observations of the Satellite Observations of the monitoring point of acquisition and base station are carried out difference resolving processing, obtain datum mark and the opposite accurate coordinates of monitoring point by the Satellite Observations for obtaining monitoring point;Early warning and monitoring platform subsystem, displacement, sedimentation and inclination information for obtaining monitored steel tower, foundation historical data analysis and the deformation tendency for predicting each electric power tower are realized to the deformation of every electric power tower, sedimentation and heeling condition visual monitor.The present invention greatly reduces the data volume to background transfer, overcomes that Big Dipper short message data transmission frequencies are low, volume of transmitted data lacks defect, improves monitoring efficiency and pre-alerting ability.

Description

A kind of electric power tower deformation monitoring system and its monitoring based on the preposition resolving of the Big Dipper Method
Technical field
The present invention relates to transmission line of electricity electric power tower monitoring technical fields, and in particular to a kind of based on the preposition resolving of the Big Dipper Electric power tower deformation monitoring system and its monitoring method.
Background technology
Transmission line of electricity electric power tower is essential foundation engineering in China's power delivery networks, but due to geology calamity The reasons such as evil, construction quality is unqualified, ground is uneven, unexpected collision may cause steel tower run-off the straight even to collapse, to electricity Net safety causes great influence.The safe condition of China's some electrical power steel tower makes people worried, and the monitoring means such as manual inspection Have the shortcomings that the period is long, efficiency is low etc., can not realize Iron tower incline caused by accident in time, it is most likely that cause the state of affairs Further expand.In order to ensure the safe and reliable operation of electrical power transmission system, need to carry out ahead of time the steel tower to there is security risk Carry out early warning and monitoring and hidden danger processing work.Beidou satellite navigation system is that China is implementing independent development capability, independently operated Global Satellite Navigation System has navigator fix, high-precision time service, short message communication function, have high-precision, it is round-the-clock, real Shi Xingqiang, high degree of automation, without advantages such as communication blind districts, while the system signal has covered the full Asian-Pacific area at present, without logical Believe blind area.It is existing that carry out electric power tower deformation monitoring system using Big Dipper technology be RTCM difference by datum mark and monitoring point Data pass to backstage, then carry out data processing on backstage, volume of transmitted data is big and requires data transmission quality reliable and stable, right Under-developed area is communicated in some public networks, or in communications facility by the area of the destructions such as geological disaster, can not just utilize public affairs The general communications means such as net are monitored the transmission of data.
Invention content
The purpose of the present invention is to provide a kind of electric power tower deformation monitoring system and its prison based on the preposition resolving of the Big Dipper Survey method can solve to communicate due to the acquisition of electric power tower monitoring data, biography caused by the limitation of geographical environment by the system Defeated bottleneck problem, realization key area electric power tower automatic monitoring, effectively promotion disaster prone areas and multiple season Frequency is monitored, the monitoring efficiency and pre-alerting ability of counterweight major region pylon disaster are improved.
To achieve the above object, present invention employs following technical schemes:
A kind of electric power tower deformation monitoring system based on the preposition resolving of the Big Dipper, including base station unit subsystem, monitoring Dot element subsystem and early warning and monitoring platform subsystem;
The base station unit subsystem, the Satellite Observations for obtaining base station, and defending the base station Star observation data are sent to monitoring dot element subsystem;
The monitoring dot element subsystem, the Satellite Observations for obtaining monitoring point, by defending for the monitoring point of acquisition The Satellite Observations that star observes data and base station carry out difference resolving processing, obtain the relatively accurate of datum mark and monitoring point Coordinate, and relatively accurate coordinate is handled to obtain displacement, sedimentation and the inclination information of monitored steel tower;
The early warning and monitoring platform subsystem, displacement, sedimentation and inclination information for obtaining monitored steel tower, foundation are gone through History data analysis and the deformation tendency for predicting each electric power tower realize deformation, sedimentation and heeling condition to every electric power tower Visual monitor.
Further, the base station unit subsystem includes datum mark Beidou receiver, and the datum mark Big Dipper receives Machine is connect by Big Dipper choke coil antenna with satellite-signal, which simultaneously passes through wireless digital broadcasting station and monitoring Dot element subsystem signals connect.
Further, the monitoring dot element subsystem include monitoring point Beidou receiver, advance data resolve module and Beidou subscriber machine, monitoring point Beidou receiver are connect by measuring antenna with satellite-signal, which passes through Serial ports RS232 is connect with advance data solving unit, and the advance data solving unit is connect with Beidou subscriber machine signal, described Beidou subscriber machine is connect by big-dipper satellite with early warning and monitoring platform subsystem.
Further, the early warning and monitoring platform subsystem includes Beidou receiver and early warning and monitoring platform, the Big Dipper Receiver is connect by serial ports RS232 with early warning and monitoring platform.
A kind of electric power tower deformation monitoring method based on the preposition resolving of the Big Dipper, includes the following steps:
(1) Satellite Observations of base station and the Satellite Observations of monitoring point are obtained;
(2) Satellite Observations of the Satellite Observations to the monitoring point of acquisition and base station carry out at difference resolving Reason, obtains datum mark and the opposite accurate coordinates of monitoring point;
(3) relatively accurate coordinate is handled to obtain displacement, sedimentation and the inclination information of monitored steel tower, according to history Data analysis and the deformation tendency for predicting each electric power tower, realization can to the deformation, sedimentation and heeling condition of every electric power tower It is monitored depending on changing.
Further, in step (2), the moonscope of the Satellite Observations and base station of the monitoring point of described pair of acquisition Data carry out difference resolving processing, obtain datum mark and the opposite accurate coordinates of monitoring point, the specific steps are:
(21) selected coordinate of the satellite position is calculated by almanac data, and pseudorange is calculated using satellite and One-Point Location coordinate Double difference obtains observational equation coefficient matrix;
(22) carrier phase list difference is carried out to observational equation coefficient matrix and double difference resolves, establish the observation of double difference carrier phase Equation;
(23) double difference carrier phase observational equation is solved, coordinate correction amount and complete cycle is obtained using least square method Fuzziness real solution;
(24) by the float-solution of double difference integer ambiguity, double difference integer ambiguity is fixed by ambiguity search's method, is obtained Electric power tower relative coordinate.
As shown from the above technical solution, the present invention originally can realize electric power tower monitoring point grade positioning accuracy, use Front end carries out data processing and obtains relative displacement, sedimentation and inclination information at the scene, greatly reduces the data volume to background transfer, Overcome that Big Dipper short message data transmission frequencies are low, volume of transmitted data lacks defect, and efficiently solves the limitation due to geographical environment Caused by the acquisition of electric power tower monitoring data, transmission bottleneck problem, realize equal key areas electric power iron multiple to geological disaster Tower is round-the-clock, round-the-clock, automation, intelligent monitoring, improve monitoring efficiency and pre-alerting ability, scent a hidden danger in time and early warning.
Description of the drawings
Fig. 1 is the system diagram of the present invention.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings:
As shown in Figure 1, the electric power tower deformation monitoring system based on the preposition resolving of the Big Dipper of the present embodiment, including base station Unit subsystem 1, monitoring dot element subsystem 2 and early warning and monitoring platform subsystem 3;
Wherein, base station unit subsystem 1, the Satellite Observations for obtaining base station, and by the satellite of base station Observation data are sent to monitoring dot element subsystem 2;Monitor dot element subsystem 2, the moonscope number for obtaining monitoring point According to, by the Satellite Observations of the Satellite Observations of the monitoring point of acquisition and base station carry out difference resolving processing, obtain base The opposite accurate coordinates with monitoring point on schedule, and relatively accurate coordinate is handled to obtain displacement, the sedimentation of monitored steel tower And inclination information;Early warning and monitoring platform subsystem 3, displacement, sedimentation and inclination information for obtaining monitored steel tower, foundation are gone through History data analysis and the deformation tendency for predicting each electric power tower realize deformation, sedimentation and heeling condition to every electric power tower Visual monitor.
The present embodiment, base station unit subsystem 1 includes datum mark Beidou receiver, and datum mark Beidou receiver passes through Big Dipper choke coil antenna is connect with satellite-signal, which simultaneously passes through wireless digital broadcasting station and monitoring dot element 2 signal of subsystem connects.
It includes monitoring point Beidou receiver, advance data resolving module and Beidou subscriber machine, prison to monitor dot element subsystem 2 Measuring point Beidou receiver is connect by measuring antenna with satellite-signal, and the monitoring point Beidou receiver is by serial ports RS232 with before The connection of data calculation unit is set, advance data solving unit is connect with Beidou subscriber machine signal, and Beidou subscriber machine is defended by the Big Dipper Star is connect with early warning and monitoring platform subsystem 3.
Early warning and monitoring platform subsystem 3 includes that Beidou receiver and early warning and monitoring platform, Beidou receiver pass through serial ports RS232 is connect with early warning and monitoring platform.
Operation principle:Base station unit subsystem 1 obtains the Satellite Observations of base station by Big Dipper choke coil antenna, And the advance data solution monitored in dot element subsystem 22 is sent to by wireless digital broadcasting station by the Satellite Observations are obtained It calculates and is handled in unit, monitoring dot element subsystem 22 obtains monitoring point Satellite Observations by measuring antenna, and should Satellite Observations are sent to advance data solving unit by serial ports RS232 and are handled, which will obtain Monitoring point Satellite Observations and base station Satellite Observations carry out difference resolving, obtain phase of the datum mark with monitoring point To accurate coordinates.
Early warning and monitoring platform commands machine to carry out data interaction by serial ports and the Big Dipper, and it is opposite to obtain each monitoring point electric power tower Displacement coordinate and warehousing.The early warning and monitoring platform has analysis, display, management and warning function, is obtained by analyzing and handling Deformation, sedimentation and the inclination information of each monitoring point electric power tower, foundation historical data analysis and the deformation for predicting each electric power tower Trend is realized to the deformation of every electric power tower, sedimentation and heeling condition visual monitor.When monitor value is more than threshold value of warning When, alarm is sent out in time, and notice related management takes measures.
It is poor that the preposition solving unit carries out the Satellite Observations of the monitoring point Satellite Observations of acquisition and base station It decomposes and calculates, obtain datum mark and the opposite accurate coordinates of monitoring point, the specific steps are:
Step 1:Selected coordinate of the satellite position is calculated by almanac data, is calculated using satellite and One-Point Location coordinate pseudo- Away from double difference, observational equation coefficient matrix is obtained.Carrier phase observational equation is extracted, such as t moment website i (base station and monitoring point) Shown in carrier phase observed quantity equation such as formula (1) to satellite j.
In formula (1), f is the frequency of carrier wave, and c is the light velocity,It is observation station i to the complete cycle number of satellite j carrier phasesFor receiver TiTo satellite j in the carrier phase observed quantity of epoch t,It is epoch of observation t by satellite j to observation station Ti's Code pseudorange, δ tj(t) clock difference for being satellite j, δ ti(t) it is survey station receiver i clock correction;For survey station i ionospheric refractions Satellite j carrier signal propagation paths are influenced;It is survey station i tropospheric refractions to satellite j carrier signal propagation path shadows It rings.
Step 2:Carrier phase list difference is carried out according to formula (1) and double difference resolves, and establishes double difference carrier phase observational equation, letter Double difference observational equation after change is shown in formula (2),
Wherein, λ is the wavelength of carrier wave,For t moment carrier phase observed quantity double difference value, ρ is corresponding pseudorange Value,For double difference integer ambiguity.
Step 3:The double-difference equation for solving more epoch obtains coordinate correction amount and integer ambiguity real number using least square Solution.It is nt in the epoch number of same group of satellite of base station and monitoring point baseline both ends simultaneous observation, corresponding error equation group is Formula (3).
By least square method equationof structure formula (4).
N Δs Y+U=0 (4)
Wherein,
N=(A B)TP(A B),U=(A B)TPL, A are observation coefficient of discharge, and B is unit matrix, L is observation noise vector, and P is power battle array, and δ X are baseline vector,For double difference integer ambiguity vector.
Solution formula (4) obtains Δ Y=-N-1U, to acquire the float-solution of double difference integer ambiguity
Step 4:By the float-solution of double difference integer ambiguity, double difference complete cycle is fixed by ambiguity search's method LAMBDA algorithms FuzzinessBack substitution equation (4) solves accurate baseline vectorFinally obtain the high-precision electric power tower phase of grade To coordinate.The relative coordinate includes that horizontally and vertically, wherein horizontal direction reflection is displacement, vertical direction It is sedimentation, Iron tower incline information can be obtained by relative shift.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.

Claims (6)

1. a kind of electric power tower deformation monitoring system based on the preposition resolving of the Big Dipper, it is characterised in that:Including base station unit System, monitoring dot element subsystem and early warning and monitoring platform subsystem;
The base station unit subsystem, the Satellite Observations for obtaining base station, and the satellite of the base station is seen Measured data is sent to monitoring dot element subsystem;The monitoring dot element subsystem, the moonscope number for obtaining monitoring point According to, by the Satellite Observations of the Satellite Observations of the monitoring point of acquisition and base station carry out difference resolving processing, obtain base The opposite accurate coordinates with monitoring point on schedule, and relatively accurate coordinate is handled to obtain displacement, the sedimentation of monitored steel tower And inclination information;
The early warning and monitoring platform subsystem, displacement, sedimentation and inclination information for obtaining monitored steel tower,
Foundation historical data analysis and the deformation tendency for predicting each electric power tower realize deformation, sedimentation to every electric power tower And heeling condition visual monitor.
2. the electric power tower deformation monitoring system according to claim 1 based on the preposition resolving of the Big Dipper, it is characterised in that:Institute It includes datum mark Beidou receiver to state base station unit subsystem, and the datum mark Beidou receiver passes through Big Dipper choke coil antenna It is connect with satellite-signal, which is simultaneously connected by wireless digital broadcasting station and monitoring dot element subsystem signals It connects.
3. the electric power tower deformation monitoring system according to claim 1 based on the preposition resolving of the Big Dipper, it is characterised in that:Institute It includes monitoring point Beidou receiver, advance data resolving module and Beidou subscriber machine, monitoring point north to state monitoring dot element subsystem Bucket receiver is connect by measuring antenna with satellite-signal, which passes through serial ports RS232 and advance data Solving unit connects, and the advance data solving unit is connect with Beidou subscriber machine signal, and the Beidou subscriber machine passes through the Big Dipper Satellite is connect with early warning and monitoring platform subsystem.
4. the electric power tower deformation monitoring system according to claim 1 based on the preposition resolving of the Big Dipper, it is characterised in that:Institute It includes Beidou receiver and early warning and monitoring platform to state early warning and monitoring platform subsystem, and the Beidou receiver passes through serial ports RS232 It is connect with early warning and monitoring platform.
5. a kind of electric power tower deformation monitoring method based on the preposition resolving of the Big Dipper, which is characterized in that include the following steps:
(1)Obtain the Satellite Observations of base station and the Satellite Observations of monitoring point;
(2)The Satellite Observations of Satellite Observations and base station to the monitoring point of acquisition carry out difference resolving processing, obtain To the opposite accurate coordinates of datum mark and monitoring point;
(3)Relatively accurate coordinate is handled to obtain displacement, sedimentation and the inclination information of monitored steel tower, according to historical data It analyzes and predicts the deformation tendency of each electric power tower, realize that the deformation, sedimentation and heeling condition to every electric power tower visualize Monitoring.
6. the electric power tower deformation monitoring method according to claim 5 based on the preposition resolving of the Big Dipper, which is characterized in that step Suddenly(2)In, the Satellite Observations of the monitoring point of described pair of acquisition and the Satellite Observations of base station carry out at difference resolving Reason, obtains datum mark and the opposite accurate coordinates of monitoring point, the specific steps are:
(21)Selected coordinate of the satellite position is calculated by almanac data, it is double to calculate pseudorange using satellite and One-Point Location coordinate Difference obtains observational equation coefficient matrix;
(22)Carrier phase list difference is carried out to observational equation coefficient matrix and double difference resolves, establishes double difference carrier phase observation side Journey;
(23)Double difference carrier phase observational equation is solved, coordinate correction amount and integral circumference ambiguity are obtained using least square method Spend real solution;
(24)By the float-solution of double difference integer ambiguity, double difference integer ambiguity is fixed by ambiguity search's method, obtains electric power Steel tower relative coordinate.
CN201810345328.5A 2018-04-17 2018-04-17 A kind of electric power tower deformation monitoring system and its monitoring method based on the preposition resolving of the Big Dipper Pending CN108508469A (en)

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CN109459775A (en) * 2018-12-19 2019-03-12 安徽继远软件有限公司 A kind of transmission tower deformation monitoring system that low rate is transmitted at a distance and method
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CN110470210A (en) * 2019-07-17 2019-11-19 西安威尔图像数据技术研究院有限公司 A kind of tall and big frame body verticality monitoring system and method based on global position system
CN110749307A (en) * 2019-12-03 2020-02-04 国家电网有限公司 Power transmission line displacement settlement determination method and system based on Beidou positioning
CN111307109A (en) * 2020-03-18 2020-06-19 云南电网有限责任公司带电作业分公司 Power grid tower equipment geological settlement hidden danger monitoring method and system based on SAR satellite data

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