CN101709961A - Row spot scanning laser projection device - Google Patents
Row spot scanning laser projection device Download PDFInfo
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- CN101709961A CN101709961A CN200910222654A CN200910222654A CN101709961A CN 101709961 A CN101709961 A CN 101709961A CN 200910222654 A CN200910222654 A CN 200910222654A CN 200910222654 A CN200910222654 A CN 200910222654A CN 101709961 A CN101709961 A CN 101709961A
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- shell
- spot scanning
- laser instrument
- projection device
- dot matrix
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Abstract
The invention discloses a row spot scanning laser projection device, comprising a shell. A laser lattice is arranged in the shell, and a regulating knob and a control panel are arranged on the shell. The regulating knob is used for regulating the pitching angle of the laser lattice. The control panel is connected with a control circuit board and is used for controlling a stepping motor. The stepping motor is fixed on the shell. An upper base is arranged below the shell. A plane bearing is installed on the upper base. The central shaft of the stepping motor runs through a central hole on the upper base and is locked so as to be closely nested with the upper base to realize that the parts above the upper base can rotate as a whole. The device uses the laser lattice instead of the traditional artificial marking signs, has the advantages of high precision, convenient operation, simple and speedy implementation and strong environment adaptability and expands the range of application in close-range photogrammetry.
Description
Technical field
The invention belongs to instruments design and make the field, disclose a kind of row spot scanning laser projection device.
Background technology
Close shot digital photogrammetry development has been subjected to vast mapping scientific worker's generally favor rapidly, has obtained in fields such as industrial and agricultural production, digital city, historical relic's protection, ground mappings using widely.
Traditional close range photogrammetry method, for improving the precision of measuring, overcome the influence (a little less than illumination) that complex environment brings, need to paste the artificial target of some on the testee surface, but for some out-of-shapes, volume is big, superficial makings is complicated, precision prescribed is high object, the not only time-consuming but also effort of this work, sometimes even have certain danger.Can't implement the place of manual work for some, as precipice, high warm forging.Just can't realize putting up of artificial target at all, limit close shot digital photography The Application of Technology.
Summary of the invention
The objective of the invention is defective at above-mentioned prior art, provide a kind of precision height, easy to operate, implement simple and fast, row spot scanning laser projection device that environmental suitability is strong.
The technical scheme taked of the present invention is to achieve these goals: a kind of row spot scanning laser projection device, comprise shell, be provided with the laser instrument dot matrix in the described shell, described shell is provided with adjusts knob and control panel, described adjustment knob is used for adjusting the angle of pitch of laser instrument dot matrix, described control panel is connected with the control circuit circuit board, be used for the control step motor, described stepper motor is fixed on the shell, be provided with upper bed-plate below the described shell, surface bearing is equipped with in described upper bed-plate top, described stepper motor axis passes upper bed-plate center pit and locking, makes the tight fit of axis and upper bed-plate, realizes that upper bed-plate is with top energy unitary rotation, described laser instrument dot matrix side geometric center is provided with crevice projection angle control axis, and described crevice projection angle control axis is connected with laser instrument dot matrix housing.
Described upper bed-plate connects lower bottom base by screw.
Described cover top portion is provided with handle.
Be provided with radiator fan in the described shell.
Described laser instrument is a round lens, and the diameter of described laser instrument bore is 7-9mm,
Described laser instrument dot matrix is designed to 50 * 4 arrays.
The beneficial effect of the embodiment of the invention is:
1. Zhuan Zhi use is simple, easy to operate.Be fit to the layman and use, overcome the artificial target and puted up and waste time and energy, be subjected to shortcomings such as environmental restraint is big, expanded the usable range of close-range photogrammetry, make its operation faster.
2. according to user's needs, can adjust scanning density flexibly, promptly scan the size of stepping angle, give prominence to its convenient, adaptable advantage;
3. in the design of laser instrument, effectively controlled the spot diameter and the circularity of laser spots, make close-range photogrammetry to laser mark dot center to obtain processing simpler, data processing speed is faster.
Description of drawings
Fig. 1 is the front elevation of embodiment of the invention row spot scanning laser projection device;
Fig. 2 is the side view of embodiment of the invention row spot scanning laser projection device;
Fig. 3 is the sectional view of embodiment of the invention row spot scanning laser projection device;
Fig. 4 is that 45 ° of synoptic diagram are looked on an embodiment of the invention laser array left side;
Fig. 5 is an embodiment of the invention laser array outboard profile;
Fig. 6 is embodiment of the invention projected spot dot matrix and scanning synoptic diagram.
Among the figure: 1, handle, 2, radiator fan, 3, the control circuit circuit board, 4, stepper motor, 5, the laser instrument dot matrix, 6, crevice projection angle control axis, 7, surface bearing, 8, motor holding screw, 9, seat holding screw up and down, 10, shell, 11, upper bed-plate, 12, lower bottom base, 13, adjust knob, 14, control panel.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Referring to Fig. 1, Fig. 2 and Fig. 3, row spot scanning laser projection device, comprise shell 10, shell 10 tops are provided with handle 1, inside is provided with laser instrument dot matrix 5 and radiator fan 2, radiator fan 2 gives the laser instrument dot matrix 5 heat radiations, the control device internal temperature, shell 1 outside knob 13 and the control panel 14 adjusted, adjust the angle of pitch that knob 13 is used for adjusting laser instrument dot matrix 5, control panel 14 is fixed on shell 10 sides by following by screw, and be connected with control circuit circuit board 3, form man-machine interactive system, control step motor 4, stepper motor 4 links into an integrated entity with shell 10 usefulness motor holding screws 8, shell 10 belows are provided with upper bed-plate 11, and mounting plane bearing 7 is used for the plane rotation above upper bed-plate 11, and stepper motor 4 axis are passed upper bed-plate 11 center pits and locking, make the tight fit of axis and upper bed-plate, realize that upper bed-plate can unitary rotation with top.With a seat holding screw 9 up and down Up/down base 11,12 is coupled together at last, rotate by realize laying of grenade instrumentation workbench with upper-part with the step motor drive grenade instrumentation, crevice projection angle control axis 6 is arranged on laser instrument dot matrix 5 side geometric centers, is connected with laser instrument dot matrix 5 housings.
For realizing the controllability and the real-time of stepper motor stepping angle, realize by man-machine interactive system, easy to operate simple.
The effect of man-machine interactive system:
(1) input step-scan angle on the panel of man-machine interactive system, the action that comes the control step motor by system;
(2) man-machine interactive system is made up of ARM plate, liquid crystal display, control panel, first kind of purposes of man-machine interactive system, can control the angle sweep limit, method: behind apparatus for leveling, with installing the leftmost side and the rightmost side of shining measured object respectively, make the projection sweep limit of device can cover its lateral dimension; Second kind of purposes, control step scan size, method: directly on control panel, import.
Device of the present invention has improved optical system, increases the circularity of hot spot with round lens; Install focusing control additional, with of the influence of reply variable in distance, realize effectively focusing on the size and the circularity of control hot spot the hot spot focus level.For satisfying general needs, design is at 30m place, spot diameter＜10mm.Consider the restriction of optical system and radiating condition, the minimum operational bore of laser instrument is designed to diameter 8mm.
The laser instrument dot matrix is designed to 50 * 4 arrays, and arrangement mode is described as follows:
Referring to Fig. 4, n=1.....50 wherein, L
I-1With L
I-50(i=1,2,3,4) about the center line symmetry, angle is α (setting of α size is relevant with the height of projection distance and measured object projection surface), and L
I-jWith L
I-j+1(i=1,2,3,4, j=1...49) angle is
Be that angle between the adjacent laser instrument of same row equates.
Referring to Fig. 5, wherein: L
1-n+1 'Be L
1-n+1Based on L
1-nTranslation, i.e. L
1-nWith L
1-n+1 'Angle is
And L
2-n, L
3-n, L
4-nIts angle of trisection.
The arrangement mode of laser array of the present invention has effectively overcome the difficulty that the laser instrument volume brings, and has created heat dissipation environment preferably, and has fully satisfied the density of projection dot matrix and the demand of width.
Use the method for apparatus of the present invention:
One, implementation method:
1. according to the surrounding enviroment of measured object, determine to use the row spot scanning laser projection device of the sort of color (laser color, red or green).As the pyrometry object, generally use green glow; Survey general object, generally get final product with ruddiness.
2. determine the approximate distance of device and measured object according to the height (wide) of measured object, determine the general location of device again along the center line of measured object.
3. then device is moved on to visual fix, will measure and open, settle grenade instrumentation thereon, screw the bottom coupling bolt with tripod.Device for opening is observed the breadth extreme whether laser dot-matrix has covered measured object just, if greater than its breadth extreme, then will install to measured object and shift near; Otherwise, then move far away.
4. observe the circularity and the size of hot spot projection, the control of focusing is in the hope of reaching the optimum efficiency of hot spot.
5. utilize the circular bubble on the tripod will install leveling, adjust the angle of pitch of grenade instrumentation again.
6. clearly need obtain the size of measured object quantity of information, promptly,, calculate stepper motor stepping angle to determine the cultellation density of grenade instrumentation to the grasp degree of texture information; Again by successively shining the high order end and the low order end of measured object, determine starting point, the final position direction of the projection of device, (shine the leftmost side of measured object earlier with device, press [determining] button on the control panel, start position with writing scan, the low order end of reusing appts irradiating object, press [determining] button on the control panel, final position with writing scan, after starting scanning, grenade instrumentation can automatically reset to start position, until scanning the final position), with these two as a result input system with control motor.
7. stepping time is set at interval, during utilize list or polyphaser digital Photogrammetric System that the point of projection is just being taken pictures.
8. after finishing for the 7th step, press [the beginning scanning] key on the control panel, then stepper motor will be controlled projecting direction and reset to the start position direction, begin scanning at preset timed intervals at interval, synchronous working with the polyphaser digital Photogrammetric System, to terminal locality.
The hot in-place detection step of large forgings:
1. at first, can't paste general artificial target at high warm forging.Consider the interference of following the spectrum that glows of the hot situation of high warm forging, select green row spot scanning laser projection device.
2. determine the approximate location of device according to the radial dimension (about 8m) of forging.
3. device is moved on to visual fix, move forward and backward and seek the optimum position, approximately (can avoid the hot environment that high warm forging produces herein along the 25m place apart from high warm forging front, avoid laser temperature too high, and the laser life-span that causes shortens even damages), to measure and open, settle grenade instrumentation thereon, screw the bottom coupling bolt with tripod.
4. the control of focusing reaches hot spot optimum efficiency (this work can be finished) before entering measure field.
5. utilize the circular bubble on the tripod will install leveling, adjust the angle of pitch of grenade instrumentation again.
6. according to circumstances, stepper motor stepping angle is set to 0.07 °, because of device on the center line of forging, and the about 18m of forging length shines the forging two ends respectively, determines that left avertence right avertence angle all is 20 °.
7. establish stepping time and be spaced apart 0.5s, synchronous working with the polyphaser digital Photogrammetric System.
The projection and the scanning situation as shown in Figure 6: adopt this laser facula dot matrix, rotate projecting direction by step motor control during use, cover whole forging surface, obtain the overlay image of forging surface laser point by the sequence image combination again, thereby can measure the forging surface.
Row spot scanning laser projection device of the present invention, replaced traditional artificial target with laser dot-matrix, not only having overcome the artificial target puts up and wastes time and energy, is subjected to shortcomings such as environmental restraint is big, have the precision height, easy to operate, implement simple and fast, advantage that environmental suitability is strong, expanded the usable range of close-range photogrammetry.
Above-described embodiment, the present invention embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacing all should be included in protection scope of the present invention.
Claims (6)
1. row spot scanning laser projection device, comprise shell, it is characterized in that: be provided with the laser instrument dot matrix in the described shell, described shell is provided with adjusts knob and control panel, described adjustment knob is used for adjusting the angle of pitch of laser instrument dot matrix, described control panel is connected with the control circuit circuit board, be used for the control step motor, described stepper motor is fixed on the shell, be provided with upper bed-plate below the described shell, surface bearing is equipped with in described upper bed-plate top, described stepper motor axis passes upper bed-plate center pit and locking, make the tight fit of axis and upper bed-plate, described laser instrument dot matrix side geometric center is provided with crevice projection angle control axis, and described crevice projection angle control axis is connected with laser instrument dot matrix housing.
2. row spot scanning laser projection device according to claim 1 is characterized in that: described upper bed-plate connects lower bottom base by screw.
3. row spot scanning laser projection device according to claim 1 is characterized in that: described cover top portion is provided with handle.
4. according to claim 1,2 or 3 described row spot scanning laser projection devices, it is characterized in that: be provided with radiator fan in the described shell.
5. row spot scanning laser projection device according to claim 4 is characterized in that: described laser instrument is a round lens, and the diameter of described laser instrument bore is 7-9mm.
6. row spot scanning laser projection device according to claim 5 is characterized in that: described laser instrument dot matrix is designed to 50 * 4 arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910222654A CN101709961A (en) | 2009-11-30 | 2009-11-30 | Row spot scanning laser projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910222654A CN101709961A (en) | 2009-11-30 | 2009-11-30 | Row spot scanning laser projection device |
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| CN101709961A true CN101709961A (en) | 2010-05-19 |
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| CN200910222654A Pending CN101709961A (en) | 2009-11-30 | 2009-11-30 | Row spot scanning laser projection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759634A (en) * | 2013-12-20 | 2014-04-30 | 西安工业大学 | Near-infrared laser spot field-of-view parameter measurement device and method |
| CN108088384A (en) * | 2017-12-14 | 2018-05-29 | 苏州西博三维科技有限公司 | Radiator |
| CN111466113A (en) * | 2017-12-05 | 2020-07-28 | 皇家飞利浦有限公司 | Apparatus and method for image capture |
-
2009
- 2009-11-30 CN CN200910222654A patent/CN101709961A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759634A (en) * | 2013-12-20 | 2014-04-30 | 西安工业大学 | Near-infrared laser spot field-of-view parameter measurement device and method |
| CN103759634B (en) * | 2013-12-20 | 2016-10-05 | 西安工业大学 | A kind of near-infrared laser hot spot visual field parameter measuring apparatus and measuring method |
| CN111466113A (en) * | 2017-12-05 | 2020-07-28 | 皇家飞利浦有限公司 | Apparatus and method for image capture |
| US11228704B2 (en) | 2017-12-05 | 2022-01-18 | Koninklijke Philips N.V. | Apparatus and method of image capture |
| CN111466113B (en) * | 2017-12-05 | 2022-03-11 | 皇家飞利浦有限公司 | Apparatus and method for image capture |
| TWI821220B (en) * | 2017-12-05 | 2023-11-11 | 荷蘭商皇家飛利浦有限公司 | Apparatus and method of image capture |
| CN108088384A (en) * | 2017-12-14 | 2018-05-29 | 苏州西博三维科技有限公司 | Radiator |
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Open date: 20100519 |