CN106851190A - A kind of low-power consumption electric power facility visualization of 3 d monitoring technology - Google Patents
A kind of low-power consumption electric power facility visualization of 3 d monitoring technology Download PDFInfo
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- CN106851190A CN106851190A CN201510891836.XA CN201510891836A CN106851190A CN 106851190 A CN106851190 A CN 106851190A CN 201510891836 A CN201510891836 A CN 201510891836A CN 106851190 A CN106851190 A CN 106851190A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 48
- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 238000012800 visualization Methods 0.000 title claims abstract description 11
- 241000251468 Actinopterygii Species 0.000 claims abstract description 36
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- 238000007781 pre-processing Methods 0.000 claims abstract description 8
- 238000003702 image correction Methods 0.000 claims abstract description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/04—Context-preserving transformations, e.g. by using an importance map
- G06T3/047—Fisheye or wide-angle transformations
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Abstract
The present invention relates to a kind of low-power consumption electric power facility visualization of 3 d monitoring technology.The technology is for the big demand of existing transmission line status detecting system monitoring range, using flake panoramic camera acquisition monitoring image, the processes such as image preprocessing, image correction process are carried out to fish eye images, generate the four width plane pictures for launching, maintenance management personnel are intuitively observed in Surveillance center by the four width plane pictures for launching, to reach the purpose of real-time detection.The method eliminates traditional troublesome operation that acquisition panoramic picture method is shot or spliced using multiple image by cloud platform rotation, reduces power consumption and maintenance cost is low, practical, convenient and intuitive, simple to operate, flexible and efficient.
Description
Technical field：
The present invention discloses a kind of low-power consumption electric power facility visualization of 3 d monitoring technology, the plan that four width launch is generated using the transmission line of electricity fish eye images of collection, maintenance management personnel can be enable more efficiently intuitively carries out overhaul management to electric power transmission line, low-power consumption, efficiency high, realizes more flexible and efficient.
Background technology：
With the fast development of China's power grid construction, the coverage rate of power network is increasingly wider, pass through geography, meteorological condition area become increasingly complex, transmission line of electricity is the important component of electrical network facilities, its reliability and operation conditions directly determine the stabilization and safety of whole system, also determine the economic benefit of electric power enterprise.In power construction, efficient Maintenance of Electric Transmission Line management work is to ensure the key that electric power transmission line normally runs, power transmission state monitoring is to realize that power transmission line state operating maintenance is managed, lift the important technical of transmission line of electricity specialized management lean level, especially video frequency graphic monitoring, because it has accuracy feature directly perceived, it plays very crucial effect for the quick species and particular location for determining abnormal conditions in time.
Because video image monitoring has accuracy directly perceived, it is widely used in transmission line of electricity on-line detecting system, it is the monitoring range for making covering larger, is all that using monopod video camera multiple scanning in certain monitor area, or multiple fixed video cameras cover whole monitor area.Existing condition detecting system, is all that every pictures that shooting is passed back individually are carried out checking analysis when exception monitoring is carried out using image, judges whether the camera site has exception.Because the Camera angle of video camera is limited, single image can only photograph a less scope, one larger monitoring range just has much monitoring images, and because the adjacent monitoring image lap that Same Scene cloud platform rotation shoots is more, if all individually checking analysis to every, repeated work is relatively more, workload than larger, meanwhile, single image is for whole monitoring scene, check, locating and monitoring position it is not directly perceived enough, efficiency is low.Therefore, the present invention devises a kind of low-power consumption electric power facility visualization of 3 d monitoring technology, transmission line of electricity is shot using fish eye lens in monitoring range and obtains monitoring image, system is corrected treatment work to fish eye images and generates the plane picture that four width launch, maintenance management personnel Surveillance center can intuitively plane of vision image, the strategy in the daily dimension pipe of transmission line of electricity and the treatment of emergency first-aid repair task to having vital effect.In order to solve the above problems, the present invention proposes a kind of low-power consumption electric power facility visualization of 3 d monitoring technology.
The content of the invention：
It is an object of the invention to provide a kind of low-power consumption electric power facility visualization of 3 d monitoring technology.The technology monitors transmission line of electricity using fish eye lens, eliminate that existing condition detecting system shoots adjacent monitoring image using cloud platform rotation and application multiple image splices the method for obtaining panoramic picture, thus the technology to implement workload few, it is low in energy consumption, it is simple to operate, it is flexible and efficient.
Low-power consumption electric power facility visualization of 3 d detection technique gathers various view data using fish eye lens to the transmission line of electricity in monitoring area, and main station monitoring center is passed back through communication unit.Main station monitoring central server platform has and is corrected processing module to image, the four width plane pictures that image procossing obtains expansion can be carried out to the flake monitoring image for gathering, staff is presented in the form of completely being easy to check, staff can intuitively observe broader, multi-angle, complete monitoring scene in monitoring client, be conducive to the overhaul management of transmission line of electricity.
The present invention is for the solution technical scheme that is used of its technical problem：
Fish eye lens panoramic camera has difference substantially because of the camera lens and imageing sensor that use with the rectangular sensor of common lens, therefore its image-forming principle is also not bery identical.Because fish eye lens focal length is shorter, visual angle is bigger, and visual angle is bigger, because optical principle produce deformation it is also stronger the characteristics of, so in order to reach 360 ° of level, vertical 180 ° of super large visual angle, fish eye lens allows " barrel distortion " rationally to exist, except the scenery at picture center keeps constant, the scenery that other should be horizontally or vertically all there occurs corresponding change.Due to the influence of depth of field curvature, panorama picture of fisheye lens can form a circular image different from human vision custom, the pixel of its image border is stretched completely, therefore how circular image is corrected, and it is exactly very crucial technology to ensure that the valid pixel of fish eye images is not lost.The distortion of image is extremely serious, does not meet normal vision impression, therefore need image correction process technology to eliminate projective invariant.
The invention mainly comprises IMAQ, image preprocessing, the radius and circle that determine fish eye images, four module compositions of image correction process.Concrete technical scheme is as follows：
1) IMAQ
Various view data are gathered to the transmission line of electricity in monitoring area using flake panoramic camera, Master Control Center is transferred back to through communication unit.
2) image preprocessing
Because of situations such as the deficiency of objective condition or fish eye camera itself causes the image that actual photographed is got off to there is fuzzy, crooked or defect, the full detail of scenery can not strictly according to the facts be reflected or information is had a strong impact on, therefore, the distortion that further correction chart picture is produced is pre-processed to the image for just having photographed.Image preprocessing generally comprises the processes such as image binaryzation treatment, filtering and noise reduction, enhancing picture contrast.Image preprocessing process can weaken the noise in image, strengthen useful information, and result will be impacted to the quality that the later stage extracts image outline and distortion correction result.
2) radius and the center of circle of fish eye images are determined
The image surrounding black portions that fish eye lens shoots are garbages, and the information in only middle border circular areas needs to extract, and is corrected.Therefore, before distortion correction, the profile of fish eye images is first chosen, determines fish eye images effective information in-scope, obtain its home position and radius size, facilitate image rectification splicing.
3) image correction process：
Due to the property of fish eye images, fish eye images are used into " cutting into a cake " equally, it is evenly divided into some pieces, as shown in figure 1, fish eye images are divided into 8 pieces (approximately regarding triangle as) first, the every a line pixel coordinate in triangle is stretched in proportion, it is transformed to rectangle, then the adjacent part of the figure after above-mentioned conversion is spliced, 180 for being launched ° panoramic picture, is finally generated four width plans with panoramic picture.
Its analysis process has the following steps to complete：
(1) the Pixel Information value for setting arbitrary coordinate (i, j) on fish eye images is f (i, j), it is assumed that the length of side of the fish eye images of gained is L, it may be determined that the expression matrix form such as formula of image data information：
F (i, j) represents the information of the picture point, and i represents the row of image information matrix, and j represents image information matrix column；
(2) polar coordinate system is set up by origin of the center of circle in fish eye images, it is assumed that the point P (x on source images0, y0), in transforming to polar coordinate system, as point P (ρ0, φ0).In the subgraph matrix OABC obtained after cutting, image pixel information f1(i1, j1) represent；
(3) point P (ρ1, φ1) corresponding image information coordinate be f1(i2, j2), matrix S is converted into by the algorithm above thought1Point S in (u, v)1(u1, v1), conversion relational expression is equation below, in formula
(4) after the completion of converting, as shown in Figure 2, the compared pixels information by column in rectangle M and N works as S to 8 subgraphs that will be generated1(u, v1)=S2(u, v2) when, seek the straight line for having identical element most, as suture, the v for marking in fig. 21And v2；
(5) according to suture, by v in A matrixes1Pixel Information on the right side of row is deleted, v in matrix B2The information deletion in left side, merges two matrixes, constitutes new image information matrix.Similarly, 8 triangles that will be cut before are stitched together, and form a width panoramic picture；
(6) panoramic picture is utilized, the treatment for carrying out correlation generates four width plane pictures.
The beneficial effects of the invention are as follows：
The present invention relates to low-power consumption electric power facility visualization of 3 d detection technique, make staff when being overhauled to transmission line of electricity, substantial amounts of monitoring picture that need not be again to same monitor area carries out individually checking that analysis is abnormal, Surveillance center only needs to the fish eye images of the monitoring that continuous receiving front-end is passed back, the four width plane pictures that the treatment generation of irregular correcting fisheye image can be just launched, provide the user with intuitively observation experience, attendant can be made to only need to concentrate on four width plane pictures, details is checked, is operated simpler efficient.
Brief description of the drawings：
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is fish eye images split graph model proposed by the present invention.
Fig. 2 is correcting fisheye image Processing Algorithm process in the present invention.
Fig. 3 is fish eye images processing procedure framework proposed by the present invention.
Fig. 4 is that fish eye images implement procedural block diagram in the present invention.
Fig. 5 is implementation result figure of the invention.
Specific embodiment：
Below in conjunction with instantiation, the present invention is described in detail.
Fig. 3 is fish eye images processing procedure framework, the framework mainly includes fish eye lens, imageing sensor, Master Control Center, four width plane pictures, the processing procedure gathers transmission line of electricity panoramic picture using fish eye lens, Master Control Center is passed back by imageing sensor, Surveillance center personnel are corrected treatment four width plane pictures of generation to the fish eye images for receiving.
Fig. 4 implements procedural block diagram for fish eye images, the process carries out image preprocessing process (image binaryzation treatment, filtering and noise reduction, enhancing picture contrast etc.) to the transmission line of electricity fish eye images for gathering first, image preprocessing process can weaken the noise in image, enhancing useful information, obtains apparent image information.Then the information of clear and definite fish eye images is present scope and effective information region, obtain the center of circle and the radius of the border circular areas.Using the image center of circle for drawing and radius, image is corrected using above-mentioned correction process algorithm, stitching image information, draws the panorama sketch of expansion, four width plans of finally treatment generation.
Implementation result：
In order to verify practicality of the invention, illustrated below by concrete implementation effect.
The four width plane pictures that the monitoring image collected to fish eye lens carries out corresponding correction process acquisition expansion are as shown in Figure 5, it is relative to carry out the panoramic picture that splicing obtains expansion using the adjacent monitoring image of cloud platform rotation shooting, the advantage of the invention is that saving the process of cloud platform rotation shooting and the troublesome operation of application multiple image splicing acquisition panoramic picture method, maintenance management personnel can intuitively observe four width plane pictures of expansion in Surveillance center.The method maintenance cost is low, and low-power consumption is practical, convenient and intuitive, simple to operate, more flexible and efficient.
Claims (2)
1. a kind of low-power consumption electric power facility visualization of 3 d monitoring technology, the technology is in monitoring range using fish eye lens to transmission line of electricity
Shoot and obtain monitoring image, system is corrected the four width plane pictures that treatment work generation launches to fish eye images.For existing
Power transmission state monitoring system, be the monitoring range for making covering larger, be all using monopod video camera in certain monitor area
Interior multiple scanning, or multiple fixed video camera covers whole monitor area, when exception monitoring is carried out using image, is all
Every pictures that shooting is passed back individually are carried out checking analysis, judges whether the camera site has exception.Due to the photography of video camera
Limited viewing angle, single image can only photograph a less scope, and a larger monitoring range just has much monitoring figures
Picture, and because the adjacent monitoring image lap that Same Scene cloud platform rotation shoots is more, if all individually checked to every
Analysis, repeated work is relatively more, workload than larger, meanwhile, single image for whole monitoring scene, check,
Locating and monitoring position is not directly perceived enough, and efficiency is low.The innovative point of the technology is the process for saving cloud platform rotation shooting, reduces power consumption,
And application multiple image splicing obtains the troublesome operation of panoramic picture, using flake panoramic camera acquisition monitoring image, passes through
The four width plane pictures that the generation of the processes such as image preprocessing, image correction process launches, maintenance management personnel can be straight in Surveillance center
The four width plane pictures that the observation of sight launches.
2. a kind of low-power consumption electric power facility visualization of 3 d monitoring technology according to claim 1, it is characterised in that do not influenceing
In the case of system operating efficiency, it is ensured that power consumption is minimum, practical.The technology is applied to utilize flake mirror in monitoring range
Head shoots to transmission line of electricity and obtains monitoring image, and system is corrected the four width plans that treatment work generation launches to fish eye images
Picture.The technology eliminates existing condition detecting system and shoots adjacent monitoring image and application multiple image spelling using cloud platform rotation
Obtain panoramic picture troublesome operation, therefore the technical maintenance low cost, low-power consumption is practical, convenient and intuitive, operation
Simply, it is more flexible and efficient.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282609A (en) * | 2017-12-29 | 2018-07-13 | 北京佳讯飞鸿电气股份有限公司 | A kind of panoramic video distribution monitoring system and method |
| CN111667449A (en) * | 2019-03-05 | 2020-09-15 | 西安英诺视通信息技术有限公司 | Visual three-dimensional monitoring technology for low-power-consumption electric power facility |
| CN116962649A (en) * | 2023-09-19 | 2023-10-27 | 安徽送变电工程有限公司 | Image monitoring and adjusting system and line construction model |
-
2015
- 2015-12-04 CN CN201510891836.XA patent/CN106851190A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282609A (en) * | 2017-12-29 | 2018-07-13 | 北京佳讯飞鸿电气股份有限公司 | A kind of panoramic video distribution monitoring system and method |
| CN108282609B (en) * | 2017-12-29 | 2020-11-20 | 北京佳讯飞鸿电气股份有限公司 | Panoramic video distribution monitoring system and method |
| CN111667449A (en) * | 2019-03-05 | 2020-09-15 | 西安英诺视通信息技术有限公司 | Visual three-dimensional monitoring technology for low-power-consumption electric power facility |
| CN116962649A (en) * | 2023-09-19 | 2023-10-27 | 安徽送变电工程有限公司 | Image monitoring and adjusting system and line construction model |
| CN116962649B (en) * | 2023-09-19 | 2024-01-09 | 安徽送变电工程有限公司 | Image monitoring and adjusting system and line construction model |
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Application publication date: 20170613 |