CN106651845B - Expect that boundary pollutes method for real-time monitoring during a kind of earth and rockfill dam filling construction - Google Patents
Expect that boundary pollutes method for real-time monitoring during a kind of earth and rockfill dam filling construction Download PDFInfo
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- CN106651845B CN106651845B CN201611170315.6A CN201611170315A CN106651845B CN 106651845 B CN106651845 B CN 106651845B CN 201611170315 A CN201611170315 A CN 201611170315A CN 106651845 B CN106651845 B CN 106651845B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012544 monitoring process Methods 0.000 title claims abstract description 42
- 239000004575 stone Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 39
- 238000013461 design Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000007619 statistical method Methods 0.000 claims abstract description 9
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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- G06T5/70—
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- G06T5/92—
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- G06T5/94—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30132—Masonry; Concrete
Abstract
The invention discloses expect that boundary pollutes method for real-time monitoring during a kind of earth and rockfill dam filling construction: carrying out real-time monitoring to dam facing material circle using camera；Real-time Monitoring Data is parsed, determines the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation；According to the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation, dynamic regulation is carried out to site operation；The monitoring achievement of statistical analysis of material circle pollution.The present invention monitors on-line to the dam facing stone process of earth and rockfill dam and feedback control, makes the pollution of dam facing material circle always in true slave mode, this is for realizing engineering construction fine-grained management, it is ensured that construction quality is of great significance.
Description
Technical field
The invention belongs to Construction for Hydroelectric Project fields, and more specifically, it relates to a kind of earth and rockfill dam filling construction mistakes
Cheng Zhongliao circle pollutes method for real-time monitoring.
Background technique
Earth and rockfill dam is to be most widely used in construction of hydropower plant and a kind of dam type with fastest developing speed.Earth and rockfill dam is mainly on the spot
Materials, save the dosage of cement, steel etc., reduce material supply and freight, have significant economy；Earth and rockfill dam
It is strong to various river valley terrain adaptabilities, it is low to the geological conditions requirement at dam site, there is wide applicability；Meanwhile earth and rockfill dam
Construction technology is simple, and process is few, is convenient for combined machine rapid construction.Although earth and rockfill dam is widely used and with the obvious advantage, due to
The rock fill dam construction duration is tight and construction intensity is big, brings bigger challenge to the control of dam construction quality.Expect that boundary divides conduct
One ring of key during earth and rockfill dam filling construction, directly influences dam body roller compaction construction quality.Therefore, how scientifically to material
Pollute the major issue controling effectively be during earth and rockfill dam filling construction in boundary.
The supervision and management of site construction management personnel, this management are relied primarily on to the control of earth and rockfill dam material circle pollution at present
Method has played positive effect to earth and rockfill dam filling construction quality is improved.But that there are accuracys is low for this method, subjectivity is strong, interference
Property it is big, that integrality is poor etc. is obvious insufficient, and with the continuous improvement of earth and rockfill dam construction scale, this labor management mechanism has expired
The requirement of foot not modernization mechanical execution progress and quality.
In recent years, the research and development with application of Information Monitoring Technology provide new way for the control of Construction of Hydropower Engineering quality
Diameter.Huang Sheng enjoy etc. using global satellite positioning, wireless data communication technology and computer technology and data processing with point
Analysis technology, is integrated in conjunction with rolling compaction machine, has developed the GPS real-time monitoring system of CFRD Embankment quality.Zhong Denghua
Deng the respective construction characteristic for being directed to core wall rockfill dam and RCC dam, core wall rockfill dam and grinding coagulation soil are developed respectively
The filling construction real-time process monitoring system on dam.Although Information Monitoring Technology is answered Construction of Hydropower Engineering quality management field
With more and more wide, but it is chiefly used in rolling track, rolling speed, number of rolling, compacting to during dam facing roller compaction construction at present
The monitoring of the roller compaction process parameter such as thickness, not yet for monitoring the pollution of material circle.
In conclusion at present in earth and rockfill dam filling construction to material circle's contamination monitoring frequently with artificial conventional control means by
Interference from human factor is big, extensive management, it is difficult to meet the requirement of modernization mechanical execution progress and quality.Secondly, information-based prison
Application of the control technology in Construction of Hydropower Engineering management is increasingly mature, but not yet for the monitoring to the pollution of material circle.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, and providing a kind of has real-time, continuity, automatic
Expect that boundary pollutes method for real-time monitoring during the earth and rockfill dam filling construction of the features such as change, high-precision, to the dam facing stone of earth and rockfill dam
Process carries out on-line monitoring and feedback control, makes the pollution of dam facing material circle always in true slave mode, this is for realizing engineering
Build fine-grained management, it is ensured that construction quality is of great significance.
The purpose of the present invention is what is be achieved through the following technical solutions.
Expect that boundary pollutes method for real-time monitoring during a kind of earth and rockfill dam filling construction of the invention, comprising the following steps:
(1) real-time monitoring is carried out to dam facing material circle using camera；
(2) Real-time Monitoring Data is parsed, determines the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation；
(3) according to the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation, site operation is moved
State regulation；
(4) the monitoring achievement of statistical analysis of material circle pollution.
The step (1) carries out the detailed process of real-time monitoring using camera to slope surface material circle are as follows: in dam body two sides
Camera is installed respectively on slope, camera technique parameter is previously set, dam facing is taken pictures with Fixed Time Interval to obtain dam
Face stone situation image, real-time Transmission to server database.
The detailed process of step (2) the parsing Real-time Monitoring Data are as follows: first to the dam facing stone feelings of camera acquisition
Condition image is pre-processed, greyscale transformation and smoothing processing including image, then to image carry out contours extract and profile with
Track determines the position coordinates in the practical line of demarcation of dam facing stone by for statistical analysis to dam material grain diameter, obtains dam facing paving
Expect the deviation in practical line of demarcation and dam facing stone design line of demarcation.
The step (3) carries out the detailed process of dynamic regulation to site operation are as follows: according to preset control standard,
The practical line of demarcation of dam facing stone is judged, if the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation is super
Preset control standard is crossed, then issues alarm, instructs personnel to make scene feedback and control measure, repeats the above steps
(1) and (2) it, is persistently monitored.
The detailed process of the monitoring achievement of step (4) the statistical analysis of material circle pollution are as follows: to the paving of finished jobs dam facing
Material boundary situation is counted, and generates declination of the boundary situation pictorial statement and scene correction Hou Liao circle distribution situation figure report respectively
It accuses, and illustrates contaminated subregion and area with character property sentence, the auxiliary material as management of engineering construction.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
The present invention is integrated with high-resolution imaging technology, automatic transmission technology and image processing techniques, to dam facing stone
Round-the-clock, long-range, real time monitoring is carried out, provides reliable basis for material circle pollution dynamic control；Pacify at dam facing filling construction scene
Charge boundary's contamination monitoring device, carries out frequent monitoring to stone Limit Control situation；Using high-resolution camera to stone
Situation is taken pictures, and image is uploaded to server database and is counted using image processing techniques to dam material grain diameter
Analysis, whether identification material paves carries out according to design requirement profile, and such as discovery material circle's pollution condition issues alarm immediately, refers to
The scene of leading is handled, it is ensured that stone boundary meets design requirement；To improve engineering construction quality and realizing that engineering construction is fine
Change management to provide strong support.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is wireless bridge bridging arrangement schematic diagram in the present invention；
Fig. 3 is that subregion material circle pollutes decision flowchart in the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawing.
Material circle pollution during earth and rockfill dam dam facing filling construction, directly influences the construction quality of dam, how to dam
During the filling construction of face material circle pollution carry out monitor in real time and effectively control have become earth-rock works construction it is urgently to be resolved
The problem of.The present invention is directed to guarantee the accuracy of stone position, avoid the limitation due to personal monitoring cause material circle pollution and
Construction quality is influenced, high-resolution imaging technology, automatic transmission technology and image processing techniques are integrated, a kind of earth and rockfill dam is provided and is filled out
Work progress Zhong Liao circle pollution method for real-time monitoring is built, as shown in Figure 1, carrying out round-the-clock, long-range, real-time prison to dam facing stone
Control, specifically includes the following steps:
One, real-time monitoring is carried out to dam facing material circle using camera
Fixed high-resolution camera is installed respectively in certain known location (x, y, z) of dam body two sides side slope, is set in advance
Determine camera technique parameter, adjusts and obtain focal length h, angle of elevation alpha, horizontal deflection angle beta and operating distance (the observation object of camera
When body, distance of the last one side lens apex of camera lens to observed object) l, the above technical parameter is entered into server data
In library.In the construction process, automatic camera is carried out to dam facing with Fixed Time Interval (5 minutes such as every) and obtains dam facing stone situation
Image, and pass through the wireless communication networks real-time Transmission independently built to remote server data library, as analytical judgment material
Pave the source data whether carried out according to design requirement profile, wherein passes through wireless communication networks after the encrypted calculating of source data
It is parsed after being transmitted to database server by application program, must not control after deposit database by permission and modified.Data without
It is encrypted state in line transmission process, it is ensured that data transmission security.The spare hand happened as means of communication obstacle
Memory space is arranged in section, front end hardware, and data can be copied by movable storage device around here.After source data enters server, by
Background application carries out calculating analysis, obtains the calculated result of related stone boundary, realizes for dam facing stone Limit Control
The frequent of situation monitors.
Wireless communication networks are built: during dam embankment, the addressing of sub-control station is generally closer away from dam site, while by
In transmitted per unit time amount of images more than and pixel it is higher, need higher transmission rate.Pass through AP (Access
Point the wireless bridge (Wireless Bridge) that) module is built transmits image, can make full use of wireless network
The advantage that bridge overlap joint is easy and transmission rate is fast.Wireless bridge can will be located at different within several hundred rice to tens kms
Two or more independent network segments in building or place link up, and realize the mutual transmission of data, wireless bridge bridging arrangement
As shown in Figure 2.The topological structure of wireless bridge overlapped network is non-stop layer peer-to-peer (Peer to Peer) structure, in channel
On modulation system be Direct Sequence Spread Spectrum, the direct communication of any two website may be implemented.For the reality for guaranteeing data transmission
Shi Xing increases broken string redialing function, and increases house dog chronograph mechanism (watchdogtimer, WDT), can be to equipment crash shape
Condition is handled and is restored.
Two, Real-time Monitoring Data is parsed, determines the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation
In monitoring center configuration monitoring terminal, pass through wired or wireless communication network, reading operation status data respectively.It is first
First the dam facing stone situation image acquired to high-resolution camera is pre-processed, the greyscale transformation including image and smooth
Then processing carries out contours extract and Contour extraction to image, by for statistical analysis to dam material grain diameter, determine dam facing
The position coordinates in the practical line of demarcation of stone obtain the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation.
(1) greyscale transformation of image
Clarity is higher than color image to gray level image in the lower situation of light for color image, therefore is
The different light condition of adaptation so not only meets processing and needs but also subtract it is necessary to which colored image is converted to gray level image
Information operation amount is lacked.
(2) smoothing processing of image
Image is smoothly a kind of practical digital image processing techniques, and main purpose is the noise in order to reduce image.
The smoothing processing method of image includes spatial domain method and frequency domain method.The calculating speed of frequency domain method is fast, but more complicated, in order to guarantee
Real-time generally uses spatial domain method.For stone boundary outline identification, it is most important that keep dam material particulate matter profile
Clearly, while high-frequency noise should be able to be removed, and median filtering (median filter) meets this condition just.Intermediate value
Filter is a kind of nonlinear filter, it can well suppressor pulse interference and image scanning noise, protect image
Edge does not fog.The more grayscale information about image is remained using the smoothing processing that median filtering carries out image, is made
The quality of Image Edge-Detection is improved, therefore can detect the more details of image border.
(3) contours extract and Contour extraction
The gray scale of image is divided into different grades first with threshold segmentation method, then with setting optimum gradation threshold value
Method determine the boundary in significant region or object to be divided.By the Threshold segmentation of image, black and white binary map is obtained
Picture carries out contours extract and tracking on this basis, is the shape point of image the purpose is to obtain the outer contoured features of image
Analysis is prepared.
It calculates in real time and the data of monitoring includes pretreated image information and image location information.It is soft using image procossing
Part transfers image information automatically and carries out statistics calculating, by for statistical analysis to dam material grain diameter, determines dam facing stone point
The position coordinates in boundary line, and the position coordinates of dam facing stone line of demarcation in the picture are back to server database, and can be with
It is shown on the visualization interface using dam facing construction plan as base map, can intuitively show the practical line of demarcation of dam facing stone
And the deviation in dam facing stone design line of demarcation.It is as shown in Figure 3 that subregion material circle pollutes determination flow.
The case where for shooting at night photo, can improve the brightness of dam facing, in conjunction with night lighting system to improve photo
Clarity；Simultaneously when carrying out analytical calculation to image, using modified Retinex algorithm, to dam facing stone situation image
Post-processing is carried out, and depth value is sought according to dark primary priori principle, the biggish region of depth value is extracted, passes through reflecting component
Local enhancement is carried out to the region, improves the partially visible degree of distant place scene and details.In order to avoid while enhancing image
Color distortion, the global contrast of image is turned up by irradiation component, and this method can effectively improve bad weather (such as rainy day, mist
It and light are poor etc.) in the case of degeneration color image clarity.
Three, according to determining that the practical line of demarcation of dam facing stone and dam facing stone design the deviation in line of demarcation, to site operation into
Mobile state regulation
According to preset control standard (as analyzed the obtained practical line of demarcation of dam facing stone and the design point of dam facing stone
The deviation in boundary line is no more than 10cm), it is real-time to expect that the application program of boundary's contamination monitoring terminal carries out the practical line of demarcation of dam facing stone
It analyzes and determines and whether meets design requirement, if the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation is more than pre-
The control standard first set then illustrates that dam facing stone boundary line pollutes, and client then issues alarm immediately, instructs related personnel
Scene feedback and control measure are made, are repeated the above steps, system background program continues to monitor this process, if discovery
It does not adjust or is not adjusted in place, then continue to issue alarm.
Four, the monitoring achievement of statistical analysis of material circle pollution.
Historical review statistics is carried out according to stone boundary situation of the different rights to finished jobs dam facing in monitor terminal, it can
It is filtered by conditions such as construction period, different zones, distinct devices；Meanwhile declination of the boundary situation pictorial statement is generated respectively
And scene correction Hou Liao circle distribution situation Graphics Report, and illustrate contaminated subregion and area with character property sentence, as engineering
The auxiliary material of implementation management.
Although function and the course of work of the invention are described above in conjunction with attached drawing, the invention is not limited to
Above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than restrictive, ability
The those of ordinary skill in domain under the inspiration of the present invention, is not departing from present inventive concept and scope of the claimed protection situation
Under, many forms can also be made, all of these belong to the protection of the present invention.
Claims (3)
1. expecting that boundary pollutes method for real-time monitoring during a kind of earth and rockfill dam filling construction, which comprises the following steps:
(1) real-time monitoring is carried out to dam facing material circle using camera；
(2) Real-time Monitoring Data is parsed, determines the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation；
(3) according to the deviation in the practical line of demarcation of dam facing stone and dam facing stone design line of demarcation, dynamic tune is carried out to site operation
Control；Detailed process are as follows: according to preset control standard, the practical line of demarcation of dam facing stone is judged, if dam facing stone
The deviation in practical line of demarcation and dam facing stone design line of demarcation is more than preset control standard, then issues alarm, instructor
Member makes scene feedback and control measure, and repeat the above steps (1) and (2), is persistently monitored；
(4) the monitoring achievement of statistical analysis of material circle pollution, detailed process are as follows: the stone boundary situation of finished jobs dam facing is carried out
Statistics generates declination of the boundary situation pictorial statement and scene correction Hou Liao circle distribution situation Graphics Report respectively, and uses character property
Sentence illustrates contaminated subregion and area, the auxiliary material as management of engineering construction.
2. expecting that boundary pollutes method for real-time monitoring, feature during a kind of earth and rockfill dam filling construction according to claim 1
It is, the step (1) carries out the detailed process of real-time monitoring using camera to slope surface material circle are as follows: in the side slope of dam body two sides
Camera is installed respectively, camera technique parameter is previously set, dam facing is taken pictures with Fixed Time Interval to obtain dam facing paving
Expect situation image, real-time Transmission to server database.
3. expecting that boundary pollutes method for real-time monitoring, feature during a kind of earth and rockfill dam filling construction according to claim 1
It is, the detailed process of step (2) the parsing Real-time Monitoring Data are as follows: first to the dam facing stone situation map of camera acquisition
As being pre-processed, then greyscale transformation and smoothing processing including image carry out contours extract and Contour extraction to image, lead to
It crosses for statistical analysis to dam material grain diameter, determines the position coordinates in the practical line of demarcation of dam facing stone, it is real to obtain dam facing stone
The deviation in border line of demarcation and dam facing stone design line of demarcation.
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| CN201611170315.6A CN106651845B (en) | 2016-12-16 | 2016-12-16 | Expect that boundary pollutes method for real-time monitoring during a kind of earth and rockfill dam filling construction |
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| CN108344670A (en) * | 2018-01-09 | 2018-07-31 | 国电大渡河流域水电开发有限公司 | A kind of subregion material circle pollution monitor system applied to dam facing filling construction scene |
| CN108335297A (en) * | 2018-03-16 | 2018-07-27 | 郑州大学 | Gas pipeline backfill engineering foreign matter based on image recognition identifies alarm method |
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| JP2006507941A (en) * | 2002-11-13 | 2006-03-09 | デカ プロダックツ リミテッド パートナーシップ | Distillation using vapor compression |
| CN101672026A (en) * | 2009-09-18 | 2010-03-17 | 中国水电顾问集团华东勘测设计研究院 | Face plate rock-fill dam structure of reasonably utilizing sand gravel material and construction method thereof |
| CN102518085A (en) * | 2011-12-29 | 2012-06-27 | 金丹越 | Ecological water retaining dam |
| CN103711113A (en) * | 2013-12-30 | 2014-04-09 | 中国水电顾问集团成都勘测设计研究院有限公司 | Ultrahigh earth and rockfill dam seepage-proof earth material surveying and determining method |
| CN104615108A (en) * | 2014-12-31 | 2015-05-13 | 天津大学 | Method for real-timely monitoring construction interlayer bonding time of roller compacted concrete |
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- 2016-12-16 CN CN201611170315.6A patent/CN106651845B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006507941A (en) * | 2002-11-13 | 2006-03-09 | デカ プロダックツ リミテッド パートナーシップ | Distillation using vapor compression |
| CN101672026A (en) * | 2009-09-18 | 2010-03-17 | 中国水电顾问集团华东勘测设计研究院 | Face plate rock-fill dam structure of reasonably utilizing sand gravel material and construction method thereof |
| CN102518085A (en) * | 2011-12-29 | 2012-06-27 | 金丹越 | Ecological water retaining dam |
| CN103711113A (en) * | 2013-12-30 | 2014-04-09 | 中国水电顾问集团成都勘测设计研究院有限公司 | Ultrahigh earth and rockfill dam seepage-proof earth material surveying and determining method |
| CN104615108A (en) * | 2014-12-31 | 2015-05-13 | 天津大学 | Method for real-timely monitoring construction interlayer bonding time of roller compacted concrete |
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