CN105953730A - Multi-camera solar heat collector steel structure support assembling quality detection system - Google Patents
Multi-camera solar heat collector steel structure support assembling quality detection system Download PDFInfo
- Publication number
- CN105953730A CN105953730A CN201610476133.5A CN201610476133A CN105953730A CN 105953730 A CN105953730 A CN 105953730A CN 201610476133 A CN201610476133 A CN 201610476133A CN 105953730 A CN105953730 A CN 105953730A
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- Prior art keywords
- camera
- mark
- photo
- steel structure
- structure support
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
Abstract
The invention relates to a multi-camera solar heat collector steel structure support assembling quality detection system. The system comprises a photography portion which includes multiple cameras, positioning identifications, measurement identifications and a data link, wherein the positioning identifications are placed at specific positions of a detection work station and maintains fixed, and the specific positions need to be uniformly distributed in a whole detected area and their absolute coordinates are already known; the measurement identifications are fixed at points to be detected of a solar heat collector steel structure support; internal parameters and a lens distortion coefficient of each camera are determined through camera calibration in advance, and each camera is fixed at a specific position of the detection work station and its distribution ensures that each measurement identification is disposed within a shooting scope of at least two cameras; and the data link transmits pictures shot by each camera, transmits control commands of each camera and also supplies power to each camera.
Description
Technical field
The present invention relates to the geometric parameter measurement of tool structure part, particularly to a kind of polyphaser solar thermal collector steel
Structure stand assembling quality detecting system.
Background technology
Solar light-heat power-generation technology (English name Concentrating Solar Power is called for short CSP) utilizes optically focused
Solar radiation energy is reflexed on heat collector by reflecting mirror, heat collector solar radiant energy is converted into heat energy, and leads to
Cross thermodynamic cycle process to generate electricity.The important way generated electricity on a large scale as solar energy, solar light-heat power-generation has
There is a series of obvious advantage.First, the carbon emission amount of its Life cycle is the lowest, only has according to foreign study
18g/kWh.Secondly, this technology cost in existing solar energy generation technology is minimum, it is easier to realize rapidly extensive
Industrialization.Finally, solar light-heat power-generation also has the strongest with existing thermal power station and the compatibility of network system
Advantage.
Groove type paraboloid technology is one of important technology of solar light-heat power-generation, and it uses groove type parabolic mirror
By on solar light focusing thermal-collecting tube at parabolic focus.In actual manufacture process, parabolic mirror by
If bolt stem or rivet are fixed on the corresponding bracket of solar thermal collector steel structure support, thermal-collecting tube is fixed in too
In the collector tube holder of sun energy heat collector steel structure support.So, each on solar thermal collector steel structure support
The position of fixing point and angle determine the geometric parameter of parabolic mirror and thermal-collecting tube.In order to ensure light gathering efficiency,
Face type and the position of thermal-collecting tube relatively of parabolic mirror are required for meeting the requirement designed, therefore, solar energy collection
Need on the assembly line of hot device steel structure support a kind of detecting system to detect the geometric parameter of each fixing point, thus
Reach to detect the purpose of assembling quality.
At present, common detection method is to use laser tracker, total powerstation or laser radar to carry out the several of Measuring Object
What parameter.This method is the hugest, extremely inefficient, and needs to contact testee, easily quilt at any time when measuring
Block and affected, it is difficult to meet the on-line checking on production line.
Summary of the invention
It is an object of the invention to, under conditions of ensureing accuracy of detection, improve detection efficiency, it is provided that one can meet
The non-contact detection system of detection on production line.
To achieve these goals, the invention provides a kind of polyphaser solar thermal collector steel structure support and assemble matter
Amount detection systems, including photographing portion, described photographing portion includes: multiple cameras 1, location mark 2, measurement mark
Knowledge 3 and data link 4；Wherein,
Described location mark 2 is placed on the ad-hoc location of detection station and keeps fixing, and this ad-hoc location needs uniformly
Being distributed in whole tested region, its absolute coordinate is obtained by high-acruracy survey device measuring before detection；Measure mark 3
It is fixed in the tested point of solar thermal collector steel structure support 5；The inner parameter of each camera 1 and lens distortion
Coefficient is determined by prior camera calibration, and each camera 1 is fixed in the ad-hoc location of detection station, and it is distributed guarantee
Each mark of measuring is positioned at the coverage of at least two cameras 1；Data link 4 transmits the shooting of each camera 1
Photo, transmits the control command of each camera 1, also powers each camera 1.
In technique scheme, this system also include calculating section, described calculating section include transmission with control module 6,
Computing module 7；Wherein,
Described transmission is connected with described data link 4 with control module 6, sends the control life of the plurality of camera 1
Order, and receive the photo of the plurality of camera 1 shooting；Described computing module 7 is from the plurality of camera 1 received
The photo of shooting extracts described location mark 2 pixel coordinates in photo, positions the exhausted of mark 2 according to described
To coordinate, position the mark 2 pixel coordinate in photo and the inner parameter of camera 1 and distortion coefficients of camera lens,
Calculate attitude and the position of each camera 1；Described computing module 7 is from the photograph of the plurality of camera 1 shooting received
Sheet extracts described measurement and identifies 3 pixel coordinates in photo, according to attitude and position, the measurement of each camera 1
The mark 3 pixel coordinate in photo calculates each absolute coordinate measuring mark 3 and absolute tilt angle, and will meter
Calculate result to contrast with master pattern, thus calculate the assembling quality of solar thermal collector steel structure support 5.
In technique scheme, described photographing portion also includes detecting station steel bracket 8；The plurality of camera 1 is the most solid
On described detection station steel bracket 8.
It is an advantage of the current invention that:
The polyphaser solar thermal collector steel structure support assembling quality detecting system detection speed of the present invention is fast, precision
Height, is not contacted with testee during detection, can meet the assembling quality testing requirement on assembly line.
Accompanying drawing explanation
Fig. 1 is polyphaser solar thermal collector steel structure support assembling quality detecting system schematic diagram.
Drawing explanation
More than 1 camera 2 location mark 3 measurement mark
4 data link 5 solar thermal collector steel structure supports 6 transmit and control module
7 computing modules 8 detect station steel bracket
Detailed description of the invention
In conjunction with accompanying drawing, the invention will be further described.
The polyphaser solar thermal collector steel structure support assembling quality detecting system of the present invention is for solar energy heating
The assembling quality of device steel structure support detects.This system generally comprises photographing portion and calculating section.
Fig. 1 is the polyphaser solar energy heating being fixed on by some cameras on detection station steel bracket in an embodiment
Device steel structure support assembling quality detecting system schematic diagram, as it can be seen, the photographing portion in this detecting system includes:
Multiple cameras 1, location mark 2, measurement mark 3, data link 4 and detection station steel bracket 8；This detection system
Calculating section in system includes: transmission and control module 6, computing module 7.
Described location mark 2 is placed on the ad-hoc location of detection station and keeps fixing, and this ad-hoc location needs uniformly
Being distributed in whole tested region, its absolute coordinate is obtained by high-acruracy survey device measuring before detection；Measure mark 3
It is fixed in the tested point of solar thermal collector steel structure support 5；The inner parameter of each camera 1 and lens distortion
Coefficient is determined by prior camera calibration, and each camera 1 is fixed on detection station steel bracket 8, and it is distributed guarantee
Each mark of measuring is positioned at the coverage of at least two cameras 1；Data link 4 transmits the shooting of each camera 1
Photo, transmits the control command of each camera 1, also powers each camera 1.
Described transmission is connected with described data link 4 with control module 6, sends the control life of the plurality of camera 1
Order, and receive the photo of the plurality of camera 1 shooting；Described computing module 7 is from the plurality of camera 1 received
The photo of shooting extracts described location mark 2 pixel coordinates in photo, positions the exhausted of mark 2 according to described
To coordinate, position the mark 2 pixel coordinate in photo and the inner parameter of camera 1 and distortion coefficients of camera lens,
Calculate attitude and the position of each camera 1；Described computing module 7 is from the photograph of the plurality of camera 1 shooting received
Sheet extracts described measurement and identifies 3 pixel coordinates in photo, according to attitude and position, the measurement of each camera 1
The mark 3 pixel coordinate in photo calculates each absolute coordinate measuring mark 3 and absolute tilt angle, and will meter
Calculate result to contrast with master pattern, thus calculate the assembling quality of solar thermal collector steel structure support 5.
In foregoing description, described pixel coordinate refers to which is positioned in photo arranges which row pixel, described absolute seat
Mark refers to the three-dimensional coordinate in real space；A corresponding relation is there is between pixel coordinate and absolute coordinate,
In the application, this corresponding relation is determined by the camera attitude of the certain camera shooting photograph, position and inner parameter,
Therefore, only it is to be understood that two parameters in pixel coordinate, absolute coordinate and corresponding relation, it is possible to calculate another
Individual parameter.
In the course of the work, multiple cameras can be by computing module just after once shooting the detecting system of the present invention
Time provide result of calculation, there is detection speed is fast, real-time is good advantage.
The detecting system of the present invention is determined inner parameter and the lens distortion system of each camera before detection by camera calibration
Number, and use the absolute coordinate of high-acruracy survey device measuring location mark, thus ensure in every time detection can be by
Location mark pixel coordinate in photo and absolute coordinate accurately calculate attitude and the position of each camera, get rid of every time
The interference that in detection, camera slight vibrations that may be present bring；Final by exact posture, position and the survey of each camera
The absolute coordinate of quantitative character pixel coordinate in photo accurate computation and measurement mark, makes this detecting system have high-precision
The advantage of degree.
The detecting system of the present invention is not contacted with testee during detection, can meet the assembling on assembly line
Quality testing requirement.
It should be noted last that, above example is only in order to illustrate technical scheme and unrestricted.Although
With reference to embodiment, the present invention is described in detail, it will be understood by those within the art that, to the present invention
Technical scheme modify or equivalent, without departure from the spirit and scope of technical solution of the present invention, it is equal
Should contain in the middle of scope of the presently claimed invention.
Claims (3)
1. a polyphaser solar thermal collector steel structure support assembling quality detecting system, it is characterised in that include
Photographing portion, described photographing portion includes: multiple cameras (1), location mark (2), measurement mark (3) sum
According to link (4)；Wherein,
Described location mark (2) is placed on the ad-hoc location of detection station and keeps fixing, and this ad-hoc location needs all
Even being distributed in whole tested region, its absolute coordinate is obtained by high-acruracy survey device measuring before detection；Measure mark
Know (3) and be fixed in the tested point of solar thermal collector steel structure support (5)；The inside ginseng of each camera (1)
Number and distortion coefficients of camera lens are determined by prior camera calibration, and each camera (1) is fixed in the certain bits of detection station
Putting, its distribution ensures that each mark (3) of measuring is positioned at the coverage of at least two cameras (1)；Data-Link
The photo that each camera (1) shoots is transmitted on road (4), transmits the control command of each camera (1), also to each camera (1)
Power supply.
Polyphaser solar thermal collector steel structure support assembling quality detecting system the most according to claim 1,
It is characterized in that, also include that calculating section, described calculating section include transmission and control module (6), computing module
(7)；Wherein,
Described transmission is connected with described data link (4) with control module (6), sends the plurality of camera (1)
Control command, and receive the photo that the plurality of camera (1) shoots；Described computing module (7) is from receiving
The photo that shoots of the plurality of camera (1) in extract described location mark (2) pixel coordinate in photo,
Absolute coordinate according to described location mark (2), location identify (2) pixel coordinate in photo and camera
(1) inner parameter and distortion coefficients of camera lens, calculate attitude and the position of each camera (1)；Described computing module
(7) from the photo that the plurality of camera (1) received shoots, described mark (3) of measuring is extracted in photo
Pixel coordinate, according to the attitude of each camera (1) and position, measure mark (3) pixel coordinate in photo
Calculate each mark absolute coordinate of (3) and absolute tilt angle measured, and result of calculation and master pattern are carried out right
Ratio, thus calculate the assembling quality of solar thermal collector steel structure support (5).
Polyphaser solar thermal collector steel structure support assembling quality the most according to claim 1 and 2 detection is
System, it is characterised in that described photographing portion also includes detecting station steel bracket (8)；The plurality of camera (1) is equal
It is fixed on described detection station steel bracket (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610476133.5A CN105953730A (en) | 2016-06-22 | 2016-06-22 | Multi-camera solar heat collector steel structure support assembling quality detection system |
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| CN201610476133.5A CN105953730A (en) | 2016-06-22 | 2016-06-22 | Multi-camera solar heat collector steel structure support assembling quality detection system |
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| CN105953730A true CN105953730A (en) | 2016-09-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106850964A (en) * | 2016-12-27 | 2017-06-13 | 宇龙计算机通信科技(深圳)有限公司 | A kind of multi-cam filming apparatus and its method |
| CN108507484A (en) * | 2018-04-08 | 2018-09-07 | 河北科技大学 | Bundled round steel multi-vision visual identifying system and method for counting |
| CN109781014A (en) * | 2019-03-11 | 2019-05-21 | 安徽工业大学 | The technology and methods of polyphaser collaboration on-line measurement strip target length under machine vision mode |
| CN110006632A (en) * | 2019-03-29 | 2019-07-12 | 北京首航艾启威节能技术股份有限公司 | System and method for detecting surface shape quality of heliostat mirror of single camera |
| CN112146568A (en) * | 2020-08-27 | 2020-12-29 | 北京天瑞星光热技术有限公司 | Method, device and system for detecting target object assembly precision |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226638A (en) * | 2007-01-18 | 2008-07-23 | 中国科学院自动化研究所 | Method and apparatus for standardization of multiple camera system |
| US7479982B2 (en) * | 2002-07-03 | 2009-01-20 | Topcon Corporation | Device and method of measuring data for calibration, program for measuring data for calibration, program recording medium readable with computer, and image data processing device |
| CN203534526U (en) * | 2013-09-27 | 2014-04-09 | 中海阳能源集团股份有限公司 | Photographing and measuring device for detection of trough solar collector |
| CN104482873A (en) * | 2014-09-18 | 2015-04-01 | 哈尔滨工业大学 | Near space balloon deformation measuring method |
| CN205718845U (en) * | 2016-06-22 | 2016-11-23 | 首航节能光热技术股份有限公司 | A kind of polyphaser solar thermal collector steel structure support assembling quality detecting system |
-
2016
- 2016-06-22 CN CN201610476133.5A patent/CN105953730A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7479982B2 (en) * | 2002-07-03 | 2009-01-20 | Topcon Corporation | Device and method of measuring data for calibration, program for measuring data for calibration, program recording medium readable with computer, and image data processing device |
| CN101226638A (en) * | 2007-01-18 | 2008-07-23 | 中国科学院自动化研究所 | Method and apparatus for standardization of multiple camera system |
| CN203534526U (en) * | 2013-09-27 | 2014-04-09 | 中海阳能源集团股份有限公司 | Photographing and measuring device for detection of trough solar collector |
| CN104482873A (en) * | 2014-09-18 | 2015-04-01 | 哈尔滨工业大学 | Near space balloon deformation measuring method |
| CN205718845U (en) * | 2016-06-22 | 2016-11-23 | 首航节能光热技术股份有限公司 | A kind of polyphaser solar thermal collector steel structure support assembling quality detecting system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106850964A (en) * | 2016-12-27 | 2017-06-13 | 宇龙计算机通信科技(深圳)有限公司 | A kind of multi-cam filming apparatus and its method |
| CN108507484A (en) * | 2018-04-08 | 2018-09-07 | 河北科技大学 | Bundled round steel multi-vision visual identifying system and method for counting |
| CN108507484B (en) * | 2018-04-08 | 2019-09-24 | 河北科技大学 | Bundled round steel multi-vision visual identifying system and method for counting |
| CN109781014A (en) * | 2019-03-11 | 2019-05-21 | 安徽工业大学 | The technology and methods of polyphaser collaboration on-line measurement strip target length under machine vision mode |
| CN110006632A (en) * | 2019-03-29 | 2019-07-12 | 北京首航艾启威节能技术股份有限公司 | System and method for detecting surface shape quality of heliostat mirror of single camera |
| CN112146568A (en) * | 2020-08-27 | 2020-12-29 | 北京天瑞星光热技术有限公司 | Method, device and system for detecting target object assembly precision |
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Application publication date: 20160921 |