CN206258081U - A kind of 3-dimensional image measurement apparatus with real-time height calibrating function - Google Patents
A kind of 3-dimensional image measurement apparatus with real-time height calibrating function Download PDFInfo
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- CN206258081U CN206258081U CN201621312968.9U CN201621312968U CN206258081U CN 206258081 U CN206258081 U CN 206258081U CN 201621312968 U CN201621312968 U CN 201621312968U CN 206258081 U CN206258081 U CN 206258081U
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Abstract
Constituted the utility model discloses a kind of 3-dimensional image measurement apparatus with real-time height calibrating function, including shooting unit and computing unit, the utility model provides a kind of 3-dimensional image measurement apparatus with real-time height calibrating function, structure is novel；Independent demarcation in real time can be carried out to each image in the measurements, the laser rays displacement of moment and the conversion relation of physical height is obtained, so that calibration result has good real-time, it is final to improve measurement result precision；The utility model camera and camera lens are fixed in mounting bracket the height and position that can clearly shoot object being measured after connecting.Standard component is fixed to and is installed on support, highly for camera can clearly photograph the height and position of each step plane of standard component, and keeps the horizontal plane of standard component parallel with straight-line motion mechanism plane of movement；Can completely by the field range of camera when ensureing that horicontal motion mechanism drives object being measured to move.
Description
Technical field
The utility model is related to radiographic measurement technical field, specifically a kind of three-dimensional shadow with real-time height calibrating function
As measurement apparatus.
Background technology
Radiological measurement device has measuring speed fast, the features such as without contacting, therefore has in accurate measurement field wide
General application.In high-precision Radiological measurement device, through reducing dress frequently with telecentric lens (Telecentric lens)
Middle lens optical distortion is put, and eliminates perspective error, and constant magnifying power is obtained in different shooting distances.
The magnifying power of telecentric lens is demarcated and camera lens optical axis inclination angle is demarcated for the follow-up plane for calculating object being measured
Size is most important.The technology for generally using now is to use to be printed on chequered with black and white gridiron pattern scaling board, puts it into the visual field
It is interior, after the software algorithm of image procossing extracts calibration result, be brought into Size calculation, i.e. use is first demarcated and measured afterwards
Off-line calibration method.However, in actually measurement, the contact because of operating personnel to equipment, or because of the vibrations of peripheral equipment
Deng the parameter demarcated at every moment is likely to change in advance.Once there is error in calibration result, until next offline
Untill demarcation, these errors can all produce the influence of continuation to measurement result.
Utility model content
The purpose of this utility model is to provide a kind of 3-dimensional image measurement apparatus with real-time height calibrating function, with
Solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of 3-dimensional image measurement apparatus with real-time height calibrating function, including shooting unit and computing unit structure
Into the shooting unit includes camera, camera lens, line laser transmitter, standard component and straight-line motion mechanism, the computing unit bag
Containing computer, the standard component has step configuration, and poor with certain altitude between any two step, standard component is provided at
Two differences in height, extract displacement of the laser rays on different steps, and calculate the inclination angle equation of laser rays for computing unit；Platform
The plane-parallel of rank is in the plane of motion of straight-line motion mechanism, and the vertical plane of step is vertical with the holding of step horizontal plane；It is each
The height of individual step is accurately known after other measuring apparatus are measured；Standard component and measurand are located at camera simultaneously
The camera lens visual field in high-visible position；From the oblique side of camera to incidence, incident laser line direction exists the line laser transmitter
It is vertical with straight-line motion mechanism direct of travel that straight-line motion mechanism upper surface is presented bright line direction；Sent out from line laser transmitter
The dispersion angle of emergent ray is enough to be showed clearly in measured workpiece surface, standard component surface, straight-line motion mechanism upper surface
Bright line；Straight-line motion mechanism includes the drive mechanism of motor and its controller composition, and other necessary transmission mechanisms.
As further program of the utility model：The standard component can be unilateral, positioned at the side of measurand,
Can be bilateral, positioned at the both sides of measurand.
As the utility model further scheme：The standard component can be with certain height change geometry
Engraved structure, or surface is printed on the non-engraved structure of certain height change geometry；The size of its geometry,
Height change accurately understands.
Compared with prior art, the beneficial effects of the utility model are：The utility model provides a kind of with height in real time
The 3-dimensional image measurement apparatus of calibrating function, structure is novel；The utility model can be carried out solely to each image in the measurements
It is vertical to demarcate in real time, the laser rays displacement of moment and the conversion relation of physical height are obtained, so that calibration result
It is final to improve measurement result precision with good real-time；The utility model camera and camera lens are fixed to installation after connecting
The height and position of object being measured can be clearly shot on support.Standard component is fixed to and is installed on support, highly for camera can be clear
It is clear to photograph the height and position of each step plane of standard component, and keep the horizontal plane of standard component flat with straight-line motion mechanism motion
Face is parallel；Horicontal motion mechanism is installed and is fixed on support, it is ensured that horicontal motion mechanism can be with when driving object being measured to move
The complete field range by camera.
Brief description of the drawings
Fig. 1 is the structural representation of the 3-dimensional image measurement apparatus with real-time height calibrating function.
Fig. 2 is the structural representation of shooting unit in the 3-dimensional image measurement apparatus with real-time height calibrating function.
Fig. 3 is laser and the signal of standard component position in the 3-dimensional image measurement apparatus with real-time height calibrating function
Figure.
Fig. 4 is the structural representation of the 3-dimensional image measurement apparatus Plays part with real-time height calibrating function.
In figure：1- computing units, 2- shooting units, 3- cameras, 4- camera lenses, 5- standard components, 6- shoot platform, 7- linear motions
Mechanism, 8- measurands, 9- line laser transmitters, the difference in height of 10- standard components first, the difference in height of 11- standard components second.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Refer to Fig. 1-4, a kind of 3-dimensional image measurement apparatus with real-time height calibrating function, including shooting unit 2
Constituted with computing unit 1, the shooting unit 2 includes camera 3, camera lens 4, line laser transmitter 9, standard component 5 and linear motion
Mechanism 7, the computing unit 1 includes computer, and the standard component 5 has step configuration, has one between any two step
Determine difference in height, standard component 5 provides at two differences in height, and the He of the first difference in height of standard component 10 is provided with this implementation Plays part
The second difference in height of standard component 11；Displacement of the laser rays on different steps is extracted for computing unit 1, and calculates inclining for laser rays
Angle equation；The plane-parallel of step keeps in the plane of motion of straight-line motion mechanism 7, vertical plane and the step horizontal plane of step
Vertically；The height of each step is accurately known after other measuring apparatus are measured；Step-like standard component 5 can be
It is unilateral, positioned at the side of measurand 8, or bilateral, positioned at the both sides of measurand 8；Standard component 5 and measurand 8
High-visible position in the visual field of camera lens 4 of camera 3 is located at simultaneously；Standard component 5 can be with certain height change geometric form
The engraved structure of shape, or surface is printed on the non-engraved structure of certain height change geometry；The chi of its geometry
Very little, height change accurately understands；, from the oblique side of camera 3 to incidence, incident laser line direction is in straight line for the line laser transmitter 9
It is vertical with the direct of travel of straight-line motion mechanism 7 that the upper surface of motion 7 is presented bright line direction；Sent out from line laser transmitter 9
The dispersion angle of emergent ray is enough to be showed clearly in measured workpiece surface, standard component surface, straight-line motion mechanism upper surface
Bright line；Straight-line motion mechanism 7 includes the drive mechanism of motor and its controller composition, and other necessary transmission mechanisms.
Operation principle of the present utility model is：The utility model provides a kind of three-dimensional shadow with real-time height calibrating function
As measurement apparatus；Because there is difference in height in the upper surface of the step shape of standard component, straight-line motion mechanism upper surface, object being measured
Different, laser rays shows corresponding displacement in different height plane；Software algorithm is by the displacement on step and known
Difference in height, calculates laser rays inclination angle equation, further according to object being measured upper surface laser rays on straight-line motion mechanism
The displacement on surface, solves the upper level of object being measured；The utility model operating procedure：1. object being measured is placed
On straight-line motion mechanism, straight-line motion mechanism drives object being measured along moving along a straight line and by camera fields of view scope；2.
Since measured object into the visual field, camera constantly obtains image.Computer operation image Processing Algorithm, from each image
In, first by the laser rays displacement in different shoulder heights and the data of actual step difference in height, calculate laser rays and incline
Oblique equation.Then the displacement of the laser rays of the laser rays and object being measured Current surface of straight-line motion mechanism loading plane is extracted
Amount, substitutes into laser rays and inclines the difference in height that equation calculates object being measured Current surface arrival straight-line motion mechanism loading plane；
3. continuous repeat step 2, obtains the elevation information of tested measurement object diverse location, until quilt from each shooting moment picture
Measurement object removes the visual field, and final statistics forms the complete elevation information of the measured object for completing.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of this patent objective not be departed from
Make a variety of changes.
Claims (3)
1. a kind of 3-dimensional image measurement apparatus with real-time height calibrating function, including shooting unit and computing unit are constituted,
Characterized in that, the shooting unit includes camera, camera lens, line laser transmitter, standard component and straight-line motion mechanism, the meter
Calculate unit and include computer, the standard component has step configuration, poor with certain altitude between any two step, standard component
Two differences in height are provided at, displacement of the laser rays on different steps is extracted for computing unit, and calculate inclining for laser rays
Angle equation；The plane-parallel of step keeps in the plane of motion of straight-line motion mechanism, vertical plane and the step horizontal plane of step
Vertically；The height of each step is accurately known after other measuring apparatus are measured；Standard component and measurand are same
When in the camera lens visual field of camera high-visible position；From the oblique side of camera to incidence, incidence swashs the line laser transmitter
It is vertical with straight-line motion mechanism direct of travel that radiation direction is presented bright line direction in straight-line motion mechanism upper surface, from line laser
The dispersion angle that ray is sent in transmitter is enough in measured workpiece surface, standard component surface, straight-line motion mechanism upper surface
Show clear bright line；Straight-line motion mechanism includes the drive mechanism of motor and its controller composition, and other necessary biographies
Motivation structure.
2. 3-dimensional image measurement apparatus with real-time height calibrating function according to claim 1, it is characterised in that institute
It can be unilateral to state standard component, positioned at the side of measurand, or bilateral, positioned at the both sides of measurand.
3. 3-dimensional image measurement apparatus with real-time height calibrating function according to claim 1, it is characterised in that institute
It can be the engraved structure with certain height change geometry to state standard component, or surface is printed on certain height change
The non-engraved structure of geometry；Size, the height change of its geometry accurately understand.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312968.9U CN206258081U (en) | 2016-12-02 | 2016-12-02 | A kind of 3-dimensional image measurement apparatus with real-time height calibrating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621312968.9U CN206258081U (en) | 2016-12-02 | 2016-12-02 | A kind of 3-dimensional image measurement apparatus with real-time height calibrating function |
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| CN206258081U true CN206258081U (en) | 2017-06-16 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156896A (en) * | 2020-01-02 | 2020-05-15 | 浙江大学台州研究院 | Laser auxiliary calibration device used in measurement of sizes of parts with different heights |
| CN111811417A (en) * | 2020-06-28 | 2020-10-23 | 江苏理工学院 | Large-height-difference stepped shaft detection device and detection method |
| CN111811416A (en) * | 2020-06-28 | 2020-10-23 | 江苏理工学院 | Device and method for detecting height difference of plane of cooling fan |
| CN112198192A (en) * | 2020-09-07 | 2021-01-08 | 江苏理工学院 | Infrared image detection device and detection method for fan welding assembly |
| CN114166133A (en) * | 2021-11-24 | 2022-03-11 | 岚图汽车科技有限公司 | Height sensor calibration method, device, equipment and readable storage medium |
-
2016
- 2016-12-02 CN CN201621312968.9U patent/CN206258081U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156896A (en) * | 2020-01-02 | 2020-05-15 | 浙江大学台州研究院 | Laser auxiliary calibration device used in measurement of sizes of parts with different heights |
| CN111156896B (en) * | 2020-01-02 | 2022-06-10 | 浙江大学台州研究院 | Laser auxiliary calibration device used in measurement of sizes of parts with different heights |
| CN111811417A (en) * | 2020-06-28 | 2020-10-23 | 江苏理工学院 | Large-height-difference stepped shaft detection device and detection method |
| CN111811416A (en) * | 2020-06-28 | 2020-10-23 | 江苏理工学院 | Device and method for detecting height difference of plane of cooling fan |
| CN111811417B (en) * | 2020-06-28 | 2022-03-25 | 江苏理工学院 | Large-height-difference stepped shaft detection device and detection method |
| CN112198192A (en) * | 2020-09-07 | 2021-01-08 | 江苏理工学院 | Infrared image detection device and detection method for fan welding assembly |
| CN114166133A (en) * | 2021-11-24 | 2022-03-11 | 岚图汽车科技有限公司 | Height sensor calibration method, device, equipment and readable storage medium |
| CN114166133B (en) * | 2021-11-24 | 2023-05-23 | 岚图汽车科技有限公司 | Altitude sensor calibration method, device, equipment and readable storage medium |
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Effective date of registration: 20220418 Address after: 230088 a14-5, 13 / F, block a, building J1, phase II, innovation industrial park, No. 2800, innovation Avenue, high tech Zone, Hefei, Anhui Province Patentee after: Anhui aiguan Vision Technology Co.,Ltd. Address before: 200233 room 1104-2, No. 2222, Huancheng Road, Juyuan new area, Jiading District, Shanghai Patentee before: SHANGHAI BIZHI BIONIC TECHNOLOGY Co.,Ltd. |