CN202420440U - Portable three-dimensional reconstruction data acquisition system - Google Patents
Portable three-dimensional reconstruction data acquisition system Download PDFInfo
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- CN202420440U CN202420440U CN201120441534XU CN201120441534U CN202420440U CN 202420440 U CN202420440 U CN 202420440U CN 201120441534X U CN201120441534X U CN 201120441534XU CN 201120441534 U CN201120441534 U CN 201120441534U CN 202420440 U CN202420440 U CN 202420440U
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Abstract
The utility model discloses a portable three-dimensional reconstruction data acquisition system, comprising a grating interference source and an image acquisition instrument; a grating interference source control circuit comprises a first single chip, is connected to a first step motor driver module through optoelectronic isolation to drive a first step motor to finish post-focus control for the grating interference source, is connected to a third step motor driver module through optoelectronic isolation to drive a third step motor to finish rotation control for a grating piece of the grating interference source, and is connected to a fourth step motor driver module through optoelectronic isolation to drive a fourth step motor to finish on/off control for a light knife of the grating interference source; the light knife is used for shielding lights of the grating interference source in the portable three-dimensional reconstruction data acquisition system; a first magnetic grating ruler is connected to the first single chip through optoelectronic isolation. The first magnetic grating ruler is used for measuring a post-focus displacement of the grating interference source. According to the utility model, a portable hardware realizing technical proposal is provided for a driven three-dimensional image data reconstruction system.
Description
Technical field
The utility model belongs to technical field of image information processing, relates in particular to a kind of portable three-dimensional reconstruction data-acquisition system.
Background technology
At application number is " 201010537914.4 "; Name is called in the Chinese invention patent application documents of " a kind of portable image hologram three-dimensional reconstructing system "; A kind of portable image hologram three-dimensional reconstructing system is disclosed; The three-dimensional measuring apparatus that comprises Control Software control; Said three-dimensional measuring apparatus comprises a grating correlator and an information acquisition device; Said grating correlator is made up of light source bus, grating assembly, the first servodrive assembly and first electric platform; Said information acquisition device is made up of imaging system, the second servodrive assembly and second electric platform, and said three-dimensional reconstruction system also comprises a software for calculation, and this software for calculation comprises image processing module, vector processing module, 3D processing module and three-dimensional reconstruction module; Wherein image processing module has rim detection, flex point detection, image base conditioning and image vector function; The vector processing module has that vector is handled, once calibration and secondary calibration function, and the 3D processing module has that three-dimensional basic edit, curve processing, some cloud change that curved surface, curved surface are handled, establishment 3D solid and three-dimensional statistical function, and said three-dimensional reconstruction module has the projection of H face, as plane projection, stereoscopic coupling, model veneer and Model Reconstruction function.In this application, complete system's technical solution scheme is disclosed, but because hard-wired scheme is relatively numerous and diverse; Equipment volume and cost are higher; Cause this three-dimensional reconstruction system, especially the system of passive type is not good with operability on cost, is unfavorable for promoting the use of of technology.
The utility model content
The purpose of the utility model provides a kind of portable three-dimensional reconstruction data-acquisition system; To application number is " 201010537914.4 ", and the hardware that name is called disclosed a kind of portable image hologram three-dimensional reconstructing system in the Chinese invention patent application documents of " a kind of portable image hologram three-dimensional reconstructing system " is formed provides a kind of improved technical scheme.
The technical scheme of the utility model is; A kind of portable three-dimensional reconstruction data-acquisition system; Comprise grating interference source and Image Acquisition appearance; The grating interference source control circuit comprises first single-chip microcomputer; Through photoelectricity isolate link the first stepping motor drive module and drive first stepper motor and accomplish the grating interference source after focus control, isolate through photoelectricity and to link the 3rd step motor drive module drive the 3rd stepper motor and accomplish Spin Control the lenticular lenses in grating interference source, isolate through photoelectricity and link the 4th step motor drive module drive the 4th stepper motor and accomplish switch control the finishing tool in grating interference source; Described finishing tool is used for playing the bridging effect to light in the grating interference source in described portable three-dimensional reconstruction data-acquisition system
First magnetic railings ruler; First photoelectric sensor; First limit switch and first is linked first single-chip microcomputer near switch through the photoelectricity isolation; First magnetic railings ruler is used to measure the back focusing displacement in grating interference source; First photoelectric sensor; First limit switch and first is used for the stroke of walking about of first stepper motor is played the role of positioning near switch; The 3rd is used for the stroke of walking about of the 3rd stepper motor is played the role of positioning near switch; The 4th is used for the stroke of walking about of the 4th stepper motor is played the role of positioning near switch
First displacement transducer, second displacement transducer, first angular transducer and second angular transducer are linked first single-chip microcomputer through analog-to-digital conversion module; First displacement transducer is used to measure the prefocusing displacement in grating interference source; Second displacement transducer is used for the mechanical arm elongation displacement that measurement image is obtained appearance; First angular transducer is used for the underspin angle that measurement image is obtained the mechanical arm of appearance; Second angular transducer is used for the last swing angle degree that measurement image is obtained the mechanical arm of appearance, and said portable three-dimensional reconstruction data-acquisition system is confirmed the locus of Image Acquisition appearance through first angular transducer and second angular transducer and second displacement transducer
First single-chip microcomputer connects control lighting control module and moulding lamp control module, and first single-chip microcomputer links to each other with communication module;
Image Acquisition appearance control circuit comprises second singlechip, through photoelectricity isolate link the second step motor drive module drive, second stepper motor and accomplish the Image Acquisition appearance through the adjustment of logarithmic code back displacement after focus control,
Second magnetic railings ruler, second photoelectric sensor, second limit switch and second are linked second singlechip near switch through the photoelectricity isolation; Second magnetic railings ruler is used for the back focusing displacement that measurement image is obtained appearance; Second photoelectric sensor, second limit switch and second are used for the stroke of walking about of second stepper motor is played the role of positioning near switch
Second singlechip is linked the DIGITAL-MODUL-R trigger control module, and second singlechip is linked the electroshutter control module, the shutter and the aperture of the camera of control Image Acquisition appearance,
The mechanical arm of Image Acquisition appearance adopts the mechanical handle manual adjusting style.
Further, first stepper motor, second stepper motor, the 3rd stepper motor and the 4th stepper motor are selected 42 motors for use, and step angle is 1.8 degree, operate in segmentation 1/8 state, to reduce vibrations.
Further, described analog-to-digital conversion module adopts the anti-jamming circuit of at least 12 precision, makes prefocusing and the back composite error that focuses in 0.1mm.
Further, also comprise a host computer operation interface, in order to the input relevant parameters.
Further; The integrated step motor drive chip of the first stepping motor drive module, the second step motor drive module, the 3rd step motor drive module and the 4th step motor drive module has synchronizing, partly step, 1/4th segmentations, 1/8th are segmented optional; Satisfy under the different situations requirement, and it is controlled to have a rotating to speed, precision.
In the three-dimensional reconstruction equipment that the utility model provides, control of the routing motion of interference source and Image Acquisition appearance and corresponding Circuits System thereof reduce system's each several part cable and connect; The control section volume of optimizing hardware; Make the high precision of whole hardware system, stable, efficient operation down.The utility model provides a kind of portability technology groups to become standard to the hardware system of three-dimensional reconstruction, for the passive type three-dimensional reconstruction system, has reduced the technical research and the use cost of existing hardware equipment, for the basis has been set up in the penetration and promotion of this kind technology.
Description of drawings
Fig. 1 is a grating interference source control circuit block diagram in the utility model system
Fig. 2 is an Image Acquisition appearance control circuit block diagram in the utility model system
Embodiment
As shown in Figure 1; The grating interference source control circuit comprises first single-chip microcomputer; Through photoelectricity isolate link the first stepping motor drive module and drive first stepper motor and accomplish the grating interference source after focus control; Link the 3rd step motor drive module drive the 3rd stepper motor through the photoelectricity isolation and accomplish Spin Control the lenticular lenses in grating interference source; Link the 4th step motor drive module drive the 4th stepper motor through the photoelectricity isolation and accomplish the switch control to the finishing tool in grating interference source, described finishing tool is used for playing the bridging effect to light in the grating interference source in described portable three-dimensional reconstruction data-acquisition system
First magnetic railings ruler; First photoelectric sensor; First limit switch and first is linked first single-chip microcomputer near switch through the photoelectricity isolation; First magnetic railings ruler is used to measure the back focusing displacement in grating interference source; First photoelectric sensor; First limit switch and first is used for the stroke of walking about of first stepper motor is played the role of positioning near switch; The 3rd is used for the stroke of walking about of the 3rd stepper motor is played the role of positioning near switch; The 4th is used for the stroke of walking about of the 4th stepper motor is played the role of positioning near switch
First displacement transducer, second displacement transducer, first angular transducer and second angular transducer are linked first single-chip microcomputer through analog-to-digital conversion module; First displacement transducer is used to measure the prefocusing displacement in grating interference source; Second displacement transducer is used for the mechanical arm elongation displacement that measurement image is obtained appearance; First angular transducer is used for the underspin angle that measurement image is obtained the mechanical arm of appearance; Second angular transducer is used for the last swing angle degree that measurement image is obtained the mechanical arm of appearance, and said portable three-dimensional reconstruction data-acquisition system is confirmed the locus of Image Acquisition appearance through first angular transducer and second angular transducer and second displacement transducer
First single-chip microcomputer connects control lighting control module and moulding lamp control module, and first single-chip microcomputer links to each other with communication module.
As shown in Figure 2, Image Acquisition appearance control circuit comprises second singlechip, through photoelectricity isolate link the second step motor drive module drive, second stepper motor and accomplish the Image Acquisition appearance through the adjustment of logarithmic code back displacement after focus control,
Second magnetic railings ruler, second photoelectric sensor, second limit switch and second are linked second singlechip near switch through the photoelectricity isolation; Second magnetic railings ruler is used for the back focusing displacement that measurement image is obtained appearance; Second photoelectric sensor, second limit switch and second are used for the stroke of walking about of second stepper motor is played the role of positioning near switch
Second singlechip is linked the DIGITAL-MODUL-R trigger control module, and second singlechip is linked the electroshutter control module, the shutter and the aperture of the camera of control Image Acquisition appearance,
The mechanical arm of Image Acquisition appearance adopts the mechanical handle manual adjusting style.
Single-chip computer control system is very common in daily life, but system has directive property all according to special object or the exploitation of object colony.Though and the sliceable realization circuit of circuit module on the market control function, spliced overall hardware system is huge loaded down with trivial details, such as stepper motor driver, electroshutter controller or the like is unfavorable for producing and the machinery assembling, also misfits with the portable characteristic of product.
In the enforcement, whole hardware circuit mainly comprises by power controling box, interferes the source control panel, Image Acquisition appearance control panel, and stepper motor, sensor is formed.Cooperate transmission cable in addition, related accessory such as interface card link together.
Power controling box: mainly by Switching Power Supply, solid-state relay and Metal halogen lamp accessory (ballast resistor, trigger) are formed.Major function provides the required 12V direct supply of circuit board, interferes the startup instant high-voltage of source 220V power supply and Metal halogen lamp.
Interference source control panel, Image Acquisition appearance control panel: as the chief component of hardware system, the work quality directly has influence on the stability of control system.
Interference source control panel and Image Acquisition appearance control panel are unanimous on the whole, and just some function is different a bit, and the circuit board shape differs bigger.Mainly by the 5V power supply, singlechip chip, photoelectricity is isolated, and AD conversion and step motor drive chip are formed.
Stepper motor:, require very high to its serviceability as the power resources of whole hardware system.
The major parameter of stepper motor is divided into two parts, and a part is a physical dimension; A part is a performance parameter in addition, comprises the number of phases, step angle, operation distance frequency characteristic etc.The cooperative mechanical volume requirement is selected 42 motors for use, and step angle is 1.8 degree, operates in segmentation 1/8 state, reduces vibrations.
Sensor: mechanical part some parameters in motion process are provided, perhaps the position relation.Comprising photoelectric sensor, near switch, limit switch, displacement transducer, magnetic railings ruler, angular transducer.
Photoelectric sensor all plays the role of positioning to the stepper motor stroke of walking about near switch and limit switch, selects for use without type because of its each position is different.Displacement transducer is used to measure interference source prefocusing displacement and mechanical arm elongation displacement; Magnetic railings ruler is used to measure the back focusing displacement of interference source and Image Acquisition appearance; Because of prefocusing and back focus on higher to the accuracy requirement of displacement; To select high-precision displacement transducer and magnetic railings ruler for use, cooperated 12 AD conversion anti-jamming circuit, made prefocusing and the back composite error that focuses in 0.1mm. angular transducer is used for the underspin angle and the last swing angle degree of measurement mechanical arm; Through the last swing angle degree of mechanical arm, elongation displacement and underspin angle are to confirm the locus of Image Acquisition appearance.
Cancelled the peripheral drive module of electroshutter in addition; Be integrated on the control panel in the Image Acquisition appearance,, reduced the USB cable that originally annexs power supply with dataphone directly by Single-chip Controlling; Make the control of electroshutter simple and direct, also reduced the pressure of computer main board power supply.
Software section is divided into two parts, and a part is the Single-chip Controlling program, by the C language; A part is the host computer operation interface in addition, by the VB language.Through the corresponding operation of VB operation interface control, satisfy the shooting flow process under the different situations simultaneously.
Relevant parameters: interfere the object distance in source, the object distance of image capture instrument, the last anglec of rotation of mechanical arm, the length of following anglec of rotation mechanical arm.These parameters all are to import to the required argument that calculates in the three-dimensional reconstruction algorithm.
The main function that realizes: the opening and closing of light and moulding lamp; The opening and closing of finishing tool, the rotation of grating and initial point location (zero-bit) interfere the back focusing in source to be walked about and data are preserved; The prefocusing data in interference source are preserved; The back focusing of Image Acquisition appearance is walked about and data are preserved, and the aperture size setting of electroshutter and time shutter are provided with, positioning flow control.
The whole control system is to tailor for the mechanical part of device systems, the high precision potentiometer, and magnetic railings ruler provides high accuracy data; Photoelectric isolation module is effectively isolated the signal transmission of single-chip microcomputer and load, has increased security, has reduced the circuit interference; Simplified circuit design, integrated step motor drive chip is in control circuit board, and it is optional to have synchronizing, half step, 1/4th segmentations, 1/8th segmentations; Satisfy under the different situations requirement to speed, precision; It is controlled to have rotating, has also reduced volume in addition greatly, and the also corresponding reduction of cost is a lot.
Claims (4)
1. a portable three-dimensional reconstruction data-acquisition system comprises grating interference source and Image Acquisition appearance, it is characterized in that:
The grating interference source control circuit comprises first single-chip microcomputer; Through photoelectricity isolate link the first stepping motor drive module and drive first stepper motor and accomplish the grating interference source after focus control; Link the 3rd step motor drive module drive the 3rd stepper motor through the photoelectricity isolation and accomplish Spin Control the lenticular lenses in grating interference source; Link the 4th step motor drive module drive the 4th stepper motor through the photoelectricity isolation and accomplish switch control the finishing tool in grating interference source; Described finishing tool is used for playing the bridging effect to light in the grating interference source in described portable three-dimensional reconstruction data-acquisition system
First magnetic railings ruler; First photoelectric sensor; First limit switch and first is linked first single-chip microcomputer near switch through the photoelectricity isolation; First magnetic railings ruler is used to measure the back focusing displacement in grating interference source; First photoelectric sensor; First limit switch and first is used for the stroke of walking about of first stepper motor is played the role of positioning near switch; The 3rd is used for the stroke of walking about of the 3rd stepper motor is played the role of positioning near switch; The 4th is used for the stroke of walking about of the 4th stepper motor is played the role of positioning near switch
First displacement transducer, second displacement transducer, first angular transducer and second angular transducer are linked first single-chip microcomputer through analog-to-digital conversion module; First displacement transducer is used to measure the prefocusing displacement in grating interference source; Second displacement transducer is used for the mechanical arm elongation displacement that measurement image is obtained appearance; First angular transducer is used for the underspin angle that measurement image is obtained the mechanical arm of appearance; Second angular transducer is used for the last swing angle degree that measurement image is obtained the mechanical arm of appearance, and said portable three-dimensional reconstruction data-acquisition system is confirmed the locus of Image Acquisition appearance through first angular transducer and second angular transducer and second displacement transducer
First single-chip microcomputer connects control lighting control module and moulding lamp control module, and first single-chip microcomputer links to each other with communication module;
Image Acquisition appearance control circuit comprises second singlechip, through photoelectricity isolate link the second step motor drive module drive, second stepper motor and accomplish the Image Acquisition appearance through the adjustment of logarithmic code back displacement after focus control,
Second magnetic railings ruler, second photoelectric sensor, second limit switch and second are linked second singlechip near switch through the photoelectricity isolation; Second magnetic railings ruler is used for the back focusing displacement that measurement image is obtained appearance; Second photoelectric sensor, second limit switch and second are used for the stroke of walking about of second stepper motor is played the role of positioning near switch
Second singlechip is linked the DIGITAL-MODUL-R trigger control module, and second singlechip is linked the electroshutter control module, the shutter and the aperture of the camera of control Image Acquisition appearance,
The mechanical arm of Image Acquisition appearance adopts the mechanical handle manual adjusting style.
2. portable three-dimensional reconstruction data-acquisition system as claimed in claim 1; It is characterized in that first stepper motor, second stepper motor, the 3rd stepper motor and the 4th stepper motor are selected 42 motors for use, step angle is 1.8 degree; Operate in segmentation 1/8 state, to reduce vibrations.
3. portable three-dimensional reconstruction data-acquisition system as claimed in claim 1 is characterized in that, described analog-to-digital conversion module adopts the anti-jamming circuit of at least 12 precision, makes prefocusing and the back composite error that focuses in 0.1mm.
4. portable three-dimensional reconstruction data-acquisition system as claimed in claim 1; It is characterized in that; The integrated step motor drive chip of the first stepping motor drive module, the second step motor drive module, the 3rd step motor drive module and the 4th step motor drive module has synchronizing, partly step, 1/4th segmentations, 1/8th are segmented optional; Satisfy under the different situations requirement, and it is controlled to have a rotating to speed, precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120441534XU CN202420440U (en) | 2011-11-09 | 2011-11-09 | Portable three-dimensional reconstruction data acquisition system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120441534XU CN202420440U (en) | 2011-11-09 | 2011-11-09 | Portable three-dimensional reconstruction data acquisition system |
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| CN202420440U true CN202420440U (en) | 2012-09-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506726A (en) * | 2011-11-09 | 2012-06-20 | 浙江华震数字化工程有限公司 | Portable three-dimensional reconstruction data acquisition system |
| CN103512500A (en) * | 2013-07-26 | 2014-01-15 | 广东工业大学 | Image collecting circuit of high-speed absolute grating ruler |
| CN111578867A (en) * | 2020-04-10 | 2020-08-25 | 清华大学深圳国际研究生院 | Three-dimensional imaging method and system based on multiple-time dislocation compression holographic reconstruction |
-
2011
- 2011-11-09 CN CN201120441534XU patent/CN202420440U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506726A (en) * | 2011-11-09 | 2012-06-20 | 浙江华震数字化工程有限公司 | Portable three-dimensional reconstruction data acquisition system |
| CN102506726B (en) * | 2011-11-09 | 2014-03-19 | 浙江华震数字化工程有限公司 | Portable three-dimensional reconstruction data acquisition system |
| CN103512500A (en) * | 2013-07-26 | 2014-01-15 | 广东工业大学 | Image collecting circuit of high-speed absolute grating ruler |
| CN103512500B (en) * | 2013-07-26 | 2016-03-23 | 广东工业大学 | A kind of image acquisition circuit of high speed absolute grating ruler |
| CN111578867A (en) * | 2020-04-10 | 2020-08-25 | 清华大学深圳国际研究生院 | Three-dimensional imaging method and system based on multiple-time dislocation compression holographic reconstruction |
| CN111578867B (en) * | 2020-04-10 | 2021-08-24 | 清华大学深圳国际研究生院 | Three-dimensional imaging method and system based on multiple-time dislocation compression holographic reconstruction |
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Granted publication date: 20120905 Effective date of abandoning: 20140319 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20140319 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |