CN204188141U - Based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint - Google Patents
Based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint Download PDFInfo
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- CN204188141U CN204188141U CN201420748860.9U CN201420748860U CN204188141U CN 204188141 U CN204188141 U CN 204188141U CN 201420748860 U CN201420748860 U CN 201420748860U CN 204188141 U CN204188141 U CN 204188141U
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- initial point
- pattern detection
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Abstract
The utility model discloses a kind of based on the calibration system of automobile pattern detection architecture light of point to initial point distance restraint, be intended to solve the problem that current existing method directly cannot obtain laser plane equation under world coordinate system.Based on the automotive vision detection system of spherical co-ordinate camera calibration target primarily of three-dimensional scaling plate (1) with demarcate bar (2) and form, provide that a kind of structure is simple, accuracy of detection is high, cumulative errors is little, function is complete, easy and simple to handle, be easy to that installations, highly versatile, cost are lower, the met automotive check industry of dependable performance to car body carry out non-contact detecting requirement based on the calibration system putting the automobile pattern detection architecture light arriving initial point distance restraint.
Description
Technical field
The utility model relates to a kind of calibration facility of checkout equipment of auto industry field, and in particular, it relates to a kind of based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint.
Background technology
For ensureing the safety traffic of automobile, rationally detect overload and oversize and the size repacking of automobile fast, the vision measurement carrying out every geometric angle of automobile is one of main test item of automobile detection field.At present, mainly rest on the measurement of manual meter ruler to the measurement of automobile dimension and angle, efficiency is low, low precision, and intensity of workers is large.Adopt machine vision metrology technology to carry out non-contact detecting to automobile geometric parameter to be expected to solve above technical bottleneck owing to having the features such as quick, accurate and high reliability.Because three-dimensional scaling thing can to determine the transition matrix of video camera phase areal coordinate and three dimensional space coordinate by a photos, therefore Fast Calibration can be realized; The stated accuracy of three-dimensional scaling thing is higher than two-dimensional calibrations thing simultaneously.But existing three-dimensional scaling thing cannot directly be demarcated the laser plane of automobile Shap feature detection system.The utility model adopts three-dimensional scaling plate and demarcates the decomposable asymmetric choice net structure of bar combination, achieve the demarcation of detection system structured light under world coordinate system, system architecture is simple, be convenient to processing and transport, directly can obtain the Spatial General 6 R position equation of detection system structured light plane under world coordinate system, improve the accuracy of automobile pattern testing result, significant to the technical progress of auto industry detection field.
Summary of the invention
The utility model directly cannot obtain the problem of laser plane equation under world coordinate system for current existing scaling method, provide a kind of can directly obtain optical plane position equation under world coordinate system, structure is simple, stated accuracy is high, cumulative errors is little, function is complete, easy and simple to handle, be easy to that installation, highly versatile, cost are lower, the met automotive check industry of dependable performance to automobile pattern carry out vision-based detection requirement based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint.
Consult Fig. 1 to Fig. 2, for solving the problems of the technologies described above, the utility model adopts following technical scheme to be achieved.Calibration system based on putting the automobile pattern detection architecture light of initial point distance restraint provided by the utility model includes three-dimensional scaling plate and demarcates bar.
The summit, end of circular cone demarcating bar overlaps with the common intersection of three pieces of rectangular steel plates of three-dimensional scaling plate.
Three-dimensional scaling plate described in technical scheme is formed by three pieces of mutual vertical weldings of rectangular steel plates, and the inner surface of three-dimensional scaling plate pastes chessboard grid pattern.
Demarcation bar described in technical scheme is processed into by standard rod iron, and taper shape is processed in the one end demarcating bar, and the other end demarcating bar is plane, plane is pasted chessboard grid pattern.
The beneficial effects of the utility model are:
(1) the utility model directly cannot obtain the problem of laser plane equation under world coordinate system for current existing scaling method, devise the demarcation bar of end with taper, utilize the summit of circular cone to achieve and demarcate overlapping of bar and three-dimensional scaling plate world coordinate system initial point, chessboard grid pattern is pasted as laser plane and the mark demarcating bar intersection point at the other end demarcating bar, plane one end of such demarcation bar is the length of demarcating bar to the spacing of the initial point of world coordinate system, the constraint utilizing different demarcation boom ends and optical plane joining distance to equal bar long can be set up optimal objective equation and then be realized the object of direct Calibration of Laser plane equation under world coordinate system, due to the conversion without the need to entering coordinate system, higher stated accuracy can be obtained.
(2) critical part of the present utility model adopts etalon steel to process, and first, standard steel section output is large, and machining operation is few, and make simple, production cost is lower; Secondly, as the important accessory of surveying instrument, adopt standard steel section to have certain intensity, can be indeformable in Long-Time Service, ensure the precision measured, the requirement of national standard to measuring accuracy can be met.
Accompanying drawing explanation
Fig. 1 is based on the axonometric drawing of point to the calibration system of the automobile pattern detection architecture light of initial point distance restraint;
Fig. 2 is based on the axonometric drawing of point to the demarcation bar 2 of the calibration system of the automobile pattern detection architecture light of initial point distance restraint;
In figure: 1. three-dimensional scaling plate, 2. demarcate bar.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Consult Fig. 1 to Fig. 2, include three-dimensional scaling plate 1 based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint and demarcate bar 2.
Three-dimensional scaling plate 1 is formed by three pieces of mutual vertical weldings of rectangular steel plates, and the inner surface of three-dimensional scaling plate 1 pastes chessboard grid pattern.
Demarcate bar 2 to be processed into by standard rod iron, taper shape is processed in the one end demarcating bar 2, and the summit, end of circular cone overlaps with the common intersection of three pieces of rectangular steel plates of three-dimensional scaling plate 1, and the other end demarcating bar 2 is plane, plane is pasted chessboard grid pattern.
Based on the using method of point to the calibration system of the automobile pattern detection architecture light of initial point distance restraint: by the fixed position be placed on based on the calibration system putting the automobile pattern detection architecture light of initial point distance restraint within the scope of the camera field of view of automobile Shap feature detection system, start video camera and laser level, the conical end of demarcation bar is made to fix a point to overlap with the initial point of three-dimensional scaling plate, the unique point of demarcating the gridiron pattern pattern of the bar other end passes through optical plane, by camera acquisition image, again demarcation bar is moved to the another location of unique point by optical plane of gridiron pattern pattern, again by camera acquisition image, after gathering multiple image, setting up unique point to the equidistant constraint of initial point solves, complete based on the demarcation of point to the automobile pattern detection architecture optic plane equations of initial point distance restraint.
Claims (3)
1. one kind is arrived the calibration system of the automobile pattern detection architecture light of initial point distance restraint based on point, it is characterized in that, described is made up of three-dimensional scaling plate (1) and demarcation bar (2) based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint;
The summit, end demarcating the circular cone of bar (2) overlaps with the common intersection of three pieces of rectangular steel plates of three-dimensional scaling plate (1).
2. according to the calibration system arriving the automobile pattern detection architecture light of initial point distance restraint based on point according to claim 1, it is characterized in that described three-dimensional scaling plate (1) is formed by three pieces of mutual vertical weldings of rectangular steel plates, the inner surface of three-dimensional scaling plate (1) pastes chessboard grid pattern.
3. according to the calibration system arriving the automobile pattern detection architecture light of initial point distance restraint based on point according to claim 1, it is characterized in that described demarcation bar (2) is processed into by standard rod iron, taper shape is processed in the one end demarcating bar (2), the other end demarcating bar (2) is plane, plane is pasted chessboard grid pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420748860.9U CN204188141U (en) | 2014-12-02 | 2014-12-02 | Based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420748860.9U CN204188141U (en) | 2014-12-02 | 2014-12-02 | Based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint |
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| Publication Number | Publication Date |
|---|---|
| CN204188141U true CN204188141U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420748860.9U Withdrawn - After Issue CN204188141U (en) | 2014-12-02 | 2014-12-02 | Based on the calibration system of point to the automobile pattern detection architecture light of initial point distance restraint |
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| CN (1) | CN204188141U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406540A (en) * | 2014-12-02 | 2015-03-11 | 吉林大学 | Calibration system for automobile morphology detection structured light based on distance constraint from point to original point |
| CN106331618A (en) * | 2016-08-22 | 2017-01-11 | 浙江宇视科技有限公司 | Method and device for automatically confirming visible range of camera |
-
2014
- 2014-12-02 CN CN201420748860.9U patent/CN204188141U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406540A (en) * | 2014-12-02 | 2015-03-11 | 吉林大学 | Calibration system for automobile morphology detection structured light based on distance constraint from point to original point |
| CN104406540B (en) * | 2014-12-02 | 2017-03-29 | 吉林大学 | Calibration system based on point to the automobile Shape measure structure light of initial point distance constraint |
| CN106331618A (en) * | 2016-08-22 | 2017-01-11 | 浙江宇视科技有限公司 | Method and device for automatically confirming visible range of camera |
| CN106331618B (en) * | 2016-08-22 | 2019-07-16 | 浙江宇视科技有限公司 | A kind of method and device automatically confirming that video camera visible range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20170329 |
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| AV01 | Patent right actively abandoned |