CN105403171B - Automobile shape measurement system raster pattern distortion factor measuring instrument - Google Patents
Automobile shape measurement system raster pattern distortion factor measuring instrument Download PDFInfo
- Publication number
- CN105403171B CN105403171B CN201510987846.3A CN201510987846A CN105403171B CN 105403171 B CN105403171 B CN 105403171B CN 201510987846 A CN201510987846 A CN 201510987846A CN 105403171 B CN105403171 B CN 105403171B
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- CN
- China
- Prior art keywords
- measurement system
- measuring instrument
- distortion factor
- guide rail
- shape measurement
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Abstract
The invention discloses a kind of automobile shape measurement system raster pattern distortion factor measuring instrument, it is intended to solves the problem of automobile shape measurement system distortion of camera coefficient is measured.Automobile shape measurement system raster pattern distortion factor measuring instrument is main by square steelframe (1), grating scale (2), V-type neck (3), steel wire (4) is constituted with guide rail bottom plate (6), the stretching of steel wire (4) is controlled by adjusting V-type neck (3), the steel wire image in fault image is set to be changed into the straight line of script, distortion factor is obtained according to the displacement of V-type neck (3), it is simple in construction there is provided one kind, accuracy of detection is high, it is easy to operate, it is easily installed, cost is relatively low, the automobile shape measurement system raster pattern distortion factor measuring instrument of dependable performance.
Description
Technical field
The present invention relates to a kind of calibration equipment of the detection device of auto industry field, in particular, it is related to one kind
Automobile shape measurement system raster pattern distortion factor measuring instrument.
Background technology
Because the preferable imaging model of car body Shap feature detection system is linear, but because camera lens have non-thread
The pixel of pixel and ideal image in sex distortion, the image of actual acquisition can not be corresponded, the profile of object, shape
Can be bent change, and this will reduce measurement accuracy, influence the three-dimensional reconstruction of car body.Use at present to the image of generation
Reason, the distortion parameter model for calibrating video camera is more complicated, and amount of calculation is larger.Therefore, a kind of easy automobile pattern is designed to survey
Technological progress of the amount system scale-type distortion factor measuring instrument to auto industry detection field is significant.
The content of the invention
The present invention for that easy can not measure car body Shap feature detection system camera lens model distortion factor at present
Present situation there is provided a kind of simple in construction, accuracy of detection is high, accumulated error is small, it is fully functional, easy to operate, be easily installed, lead to
With property is strong, cost is relatively low, it is dependable performance meet automotive check industry calibrating is carried out to car body Shap feature detection system will
The automobile shape measurement system raster pattern distortion factor measuring instrument asked.
Refering to Fig. 1 to Fig. 5, it is achieved in order to solve the above technical problems, the present invention is adopted the following technical scheme that.The present invention
The automobile shape measurement system raster pattern distortion factor measuring instrument provided includes square steelframe, grating scale, V-type neck, steel
Silk and guide rail bottom plate.
The bottom surface of guide rail bottom plate and the bottom surface of square steelframe are coplanar, and the two ends of guide rail bottom plate are respectively welded at square steelframe two
The middle part of individual opposite flank, the guide rail of grating scale is placed on the top surface of guide rail bottom plate and equidistantly processed with the top surface of guide rail bottom plate
Row's screwed hole be screwed connection, two steel wires are each passed through the V-groove of two V-type neck bottoms, four sunk screws
Four screwed holes for being each passed through two sliding block upper surfaces in four counter sinks of two V-type necks and grating scale are screwed company
Connect, two steel wires are contacted with the V-groove tight fit of two V-type neck bottoms, and the two ends of two steel wires are respectively welded at square bar
The both sides of frame inner surface, two steel wires are parallel to each other.
The rectangular frame that square steelframe described in technical scheme welds for four square steel.
Guide rail bottom plate described in technical scheme is processed into by thin rectangular shape steel plate, and the top surface of guide rail bottom plate is equidistantly processed
One row's screwed hole.
Grating scale described in technical scheme is canonical measure grating scale.
V-type neck described in technical scheme is made up of rectangle bloom, one V-type of rectangle bloom lower surface center processing
Groove, rectangle bloom upper surface two ends two counter sinks of symmetrical machining.
The beneficial effects of the invention are as follows：
(1) present invention using grating scale adjust and record steel wire straight line is changed into from curve in imaging needed for move away from
From so as to obtain the distortion factor of car body Shap feature detection system video camera, reducing cost and operating method be easy.
(2) major part of the invention is processed using standard steel section, first, and standard steel section yield is big, machining
Process is few, and production cost is relatively low；Secondly, as the important accessory of measuring instrument, there is certain intensity, energy using standard steel section
It is enough indeformable in long-term use, it is ensured that the precision of measurement, requirement of the national standard to measurement accuracy can be met.
Brief description of the drawings
Fig. 1 is the left axle mapping of automobile shape measurement system raster pattern distortion factor measuring instrument；
Fig. 2 is the right axle mapping of automobile shape measurement system raster pattern distortion factor measuring instrument；
Fig. 3 is square steelframe 1 in automobile shape measurement system raster pattern distortion factor measuring instrument, grating scale 2, steel wire 4, led
The shaft side figure of orbiting end plate 6；
Fig. 4 is to contain square steelframe 1, grating scale 2, V-type in automobile shape measurement system raster pattern distortion factor measuring instrument
Neck 3, steel wire 4, the partial sectional view of guide rail bottom plate 6；
Fig. 5 is the shaft side figure of V-type neck 3 in automobile shape measurement system raster pattern distortion factor measuring instrument；
In figure：1. square steelframe, 2. grating scales, 3.V type necks, 4. steel wires, 6. guide rail bottom plates.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
Refering to Fig. 1 to Fig. 5, automobile shape measurement system raster pattern distortion factor measuring instrument includes square steelframe 1, grating
Chi 2, V-type neck 3, steel wire 4 and guide rail bottom plate 6.
Square steelframe 1 is the rectangular frame of four square steel welding, and guide rail bottom plate 6 is processed into by thin rectangular shape steel plate, guide rail
The bottom surface of bottom plate 6 and the bottom surface of square steelframe 1 are coplanar, and the two ends of guide rail bottom plate 6 are respectively welded at square 1 two opposite sides of steelframe
The middle part in face, the top surface of guide rail bottom plate 6 equidistantly processes row's screwed hole.
Grating scale 2 is canonical measure grating scale, the guide rail of grating scale 2 be placed on the top surface of guide rail bottom plate 6 and with guide rail bottom
Row's screwed hole that the top surface of plate 6 is equidistantly processed is screwed connection.
V-type neck 3 is made up of rectangle bloom, one V-groove of rectangle bloom lower surface center processing, rectangle bloom upper surface
Two counter sinks of two ends symmetrical machining, two steel wires 4 are each passed through the V-groove of two bottoms of V-type neck 3, four sunk screws
It is each passed through four counter sinks of two V-type necks 3 and four screwed holes of two sliding block upper surfaces in grating scale 2 is screwed
Connection, two steel wires 4 are contacted with the V-groove tight fit of two bottoms of V-type neck 3, the two ends side of being respectively welded at of two steel wires 4
The both sides of the inner surface of shaped steel frame 1, two steel wires 4 are parallel to each other.
The application method of automobile shape measurement system raster pattern distortion factor measuring instrument：By square steelframe 1 towards automobile-shaped
The video camera of looks measuring system, steel wire 4 is stretched using grating scale 2, the camera acquisition side of automobile shape measurement system
The image of steel wire 4 on shaped steel frame 1, when steel wire 4 is straight line in the image of camera acquisition, stops moving grating chi 2, recording light
The displacement that grid chi 2 is now moved, the distortion factor of automobile shape measurement system video camera is evaluated according to the size of displacement.
Claims (5)
1. a kind of automobile shape measurement system raster pattern distortion factor measuring instrument, it is characterised in that described automobile topography measurement
System raster pattern distortion factor measuring instrument is by square steelframe (1), grating scale (2), V-type neck (3), steel wire (4) and guide rail bottom plate
(6) constitute；
The bottom surface of guide rail bottom plate (6) and the bottom surface of square steelframe (1) are coplanar, and the two ends of guide rail bottom plate (6) are respectively welded at square
The middle part of (1) two opposite flank of steelframe, the guide rail of grating scale (2) be placed on the top surface of guide rail bottom plate (6) and with guide rail bottom plate
(6) row's screwed hole that top surface is equidistantly processed is screwed connection, and two steel wires (4) are each passed through two V-type necks (3)
The V-groove of bottom, four sunk screws are each passed through four counter sinks of two V-type necks (3) and two cunnings in grating scale (2)
Four screwed holes of block upper surface are screwed connection, two steel wires (4) and the V-groove tight fit of two V-type neck (3) bottoms
Contact, the two ends of two steel wires (4) are respectively welded at the both sides of square steelframe (1) inner surface, and two steel wires (4) are parallel to each other.
2. according to the automobile shape measurement system raster pattern distortion factor measuring instrument described in claim 1, it is characterised in that described
Square steelframe (1) for the welding of four square steel rectangular frame.
3. according to the automobile shape measurement system raster pattern distortion factor measuring instrument described in claim 1, it is characterised in that described
Guide rail bottom plate (6) be processed into by thin rectangular shape steel plate, the equidistant one row's screwed hole of processing of the top surface of guide rail bottom plate (6).
4. according to the automobile shape measurement system raster pattern distortion factor measuring instrument described in claim 1, it is characterised in that described
Grating scale (2) be canonical measure grating scale.
5. according to the automobile shape measurement system raster pattern distortion factor measuring instrument described in claim 1, it is characterised in that described
V-type neck (3) be made up of rectangle bloom, rectangle bloom lower surface center processing one V-groove, rectangle bloom upper surface two ends
Two counter sinks of symmetrical machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987846.3A CN105403171B (en) | 2015-12-24 | 2015-12-24 | Automobile shape measurement system raster pattern distortion factor measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987846.3A CN105403171B (en) | 2015-12-24 | 2015-12-24 | Automobile shape measurement system raster pattern distortion factor measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105403171A CN105403171A (en) | 2016-03-16 |
| CN105403171B true CN105403171B (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510987846.3A Expired - Fee Related CN105403171B (en) | 2015-12-24 | 2015-12-24 | Automobile shape measurement system raster pattern distortion factor measuring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN105403171B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654483A (en) * | 2021-08-27 | 2021-11-16 | 吉林大学 | Characteristic synchronous reverse motion automobile morphology detection system distortion coefficient measuring instrument |
Citations (8)
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| JPH0463417A (en) * | 1990-07-03 | 1992-02-28 | Fujitsu Ltd | Manufacture of semiconductor device |
| JP2000046528A (en) * | 1998-07-27 | 2000-02-18 | Fujikura Ltd | Distortion measuring method using optical fiber sensor |
| JP3256678B2 (en) * | 1998-02-19 | 2002-02-12 | 株式会社東芝 | Lens aberration measurement method |
| CN1508527A (en) * | 2002-12-17 | 2004-06-30 | 北京航空航天大学 | Method for calibarting lens anamorphic parameter |
| CN101666625A (en) * | 2009-09-30 | 2010-03-10 | 长春理工大学 | Model-free method for correcting distortion error |
| JP5691185B2 (en) * | 2010-02-10 | 2015-04-01 | 株式会社ニコン | Lens array, wavefront sensor, and wavefront aberration measuring apparatus |
| CN104769935A (en) * | 2013-07-16 | 2015-07-08 | 索尼公司 | Display device |
| CN205228394U (en) * | 2015-12-24 | 2016-05-11 | 吉林大学 | Car appearance measurement system raster pattern distortion coefficient measuring apparatu |
-
2015
- 2015-12-24 CN CN201510987846.3A patent/CN105403171B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0463417A (en) * | 1990-07-03 | 1992-02-28 | Fujitsu Ltd | Manufacture of semiconductor device |
| JP3256678B2 (en) * | 1998-02-19 | 2002-02-12 | 株式会社東芝 | Lens aberration measurement method |
| JP2000046528A (en) * | 1998-07-27 | 2000-02-18 | Fujikura Ltd | Distortion measuring method using optical fiber sensor |
| CN1508527A (en) * | 2002-12-17 | 2004-06-30 | 北京航空航天大学 | Method for calibarting lens anamorphic parameter |
| CN101666625A (en) * | 2009-09-30 | 2010-03-10 | 长春理工大学 | Model-free method for correcting distortion error |
| JP5691185B2 (en) * | 2010-02-10 | 2015-04-01 | 株式会社ニコン | Lens array, wavefront sensor, and wavefront aberration measuring apparatus |
| CN104769935A (en) * | 2013-07-16 | 2015-07-08 | 索尼公司 | Display device |
| CN205228394U (en) * | 2015-12-24 | 2016-05-11 | 吉林大学 | Car appearance measurement system raster pattern distortion coefficient measuring apparatu |
Non-Patent Citations (2)
| Title |
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| 《平面几何测量中的图像畸变校正》;苏成志，等;《光学精密工程》;20110131;正文第1-7页 * |
| 《摄像头镜头畸变的一种非量测校正方法》;张靖，等;《光学学报》;20080831;正文第1-6页 * |
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|---|---|
| CN105403171A (en) | 2016-03-16 |
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