CN2462415Y - Three dimensional laser scanner - Google Patents
Three dimensional laser scanner Download PDFInfo
- Publication number
- CN2462415Y CN2462415Y CN 00205342 CN00205342U CN2462415Y CN 2462415 Y CN2462415 Y CN 2462415Y CN 00205342 CN00205342 CN 00205342 CN 00205342 U CN00205342 U CN 00205342U CN 2462415 Y CN2462415 Y CN 2462415Y
- Authority
- CN
- China
- Prior art keywords
- cantilever
- adjustable column
- laser scanner
- dimensional laser
- mounting
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a three dimensional laser scanner which uses laser for measuring objects and obtaining three dimensional information. The utility model is composed of a seat frame, an adjustable upright post, a step-by-step motor, a cantilever, a laser generator, a camera, etc. The cantilever is arranged above the adjustable upright post, the cantilever is connected with the adjustable upright post through a rotating shaft, and the height can be manually regulated. The cantilever is driven by the step-by-step motor, and can be rotated around a shaft center of the seat frame. A camera is respectively arranged at both sides of the laser generator arranged at the top of the cantilever. The utility model has the advantages of high measuring precision, stable performance, good reliability, elimination of measuring dead area by two video cameras, convenient operation and low cost.
Description
The utility model relates to a kind of pick-up unit, particularly a kind of three-dimensional laser scanner that utilizes the laser measurement object to obtain three-dimensional information.
The steric information of utilizing information sensor to obtain testee is the important research direction of graphical analysis and 3D computer vision, in fields such as medical science, industry, military engineering, digital movie making, have important and Practical significance widely, have very wide application prospect.Traditional range image based on active triangle principle obtains system only needs a laser generator and a ccd video camera, in use blind zone problem can occur.The domestic report of also seeing about the 3-D view scanister generally all is that testee is placed on the rotatable platform, or Laser Detecting Set is installed on the dolly that moves along guide rail, is subjected to certain limitation in actual applications.
The purpose of this utility model provide a kind of utilize laser initiatively the triangle principle obtain the three-dimensional laser scanner of measured object three-dimensional data, solved traditional active triangular methods intrinsic blind zone problem, stable performance, the precision height, easy to operate.
The purpose of this utility model is achieved by the following technical solution: three-dimensional laser scanner is made up of mounting, adjustable column, stepper motor, cantilever, laser generator, video camera etc., adjustable column is installed on the mounting, the top of adjustable column is a cantilever, fix a rotating shaft on the cantilever, cantilever is connected with adjustable column by this rotating shaft, and a stepper motor that can drive the rotating shaft rotation is installed on the cantilever; A cross bar is equipped with on the top of cantilever, fixing respectively installing one video camera in the two ends of cross bar, the fixing installing in the middle part of cross bar one laser generator; Install one handle on the mounting, the front end of handle connects a regulating device, and this regulating device is connected with adjustable column again.
In the technical scheme of the utility model three-dimensional laser scanner, comprise the adjustable column of a supporting cantilever, but its height manual adjustments; Cantilever can be around the rotation of the axle center of mounting by the driving of stepper motor; On the top of cantilever, the both sides of laser generator are provided with a video camera respectively; During use, when because the blocking of object when a certain video camera can not detect complete laser strip, can utilize the laser strip of another video camera to be compensated; Measured object can maintain static in measuring scene, by the rotation of cantilever, drives the three-dimensional data that whole optical devices obtain measured object.
This three-dimensional laser scanner and two circuit card and computing machine are formed three-dimensional image acquisition and reconstructing system, a circuit card is the motor-driven card, the rotation of its energy control step motor, functions such as automation change position, auto zero position, control video camera, laser generator are provided, and scan command is provided; Another piece circuit card is an image pick-up card.Computing machine is controlled the whole process of obtaining three-dimensional data by two circuit card in the slot.The information that this three-dimensional laser scanner is gathered is input in the computing machine, can obtain high-quality 3-D view after treatment.Native system is aspect medical science, for computer assisted surgery provides a high precision, visual, exercisable three-dimensional platform, at other field, as in the high-tech areas such as digital museum, three-dimensional scenic modeling and demonstration, industrial automation very strong application and development potentiality being arranged all.
The utility model measuring accuracy height, stable performance, good reliability adopts two video cameras to eliminate the measurement blind area, and easy to operate, low cost of manufacture has very high practical value.
Below in conjunction with drawings and Examples the utility model is illustrated.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of regulating device among the utility model embodiment.
Fig. 3 is the structural representation of locating rack among the utility model embodiment.
As shown in Figure 1, universal wheel is equipped with in mounting 5 bottoms of three-dimensional laser scanner, adjustable column 4 is installed on the mounting, a cantilever 10 is supported in the top of adjustable column, cantilever is connected with adjustable column 4 by rotating shaft 9, one stepper motor 8 is installed on the cantilever, and stepper motor is according to the instruction running of computing machine, and 10 rotations of drive cantilever; A cross bar 15 is equipped with on the top of cantilever, fixing respectively installing one video camera 16 in the two ends of cross bar, the fixing installing in the middle part of cross bar one laser generator 14; Illuminating lamp 11 is housed on the cantilever; Installing one handle 7 on the mounting, handle is connected with a regulating device, and the bottom of this regulating device is connected with adjustable column 4.
As shown in Figure 2, the regulating device of present embodiment is that the front end at handle 7 connects a bolt 17, this bolt is that the bolt by two reverse screw threads is welded, each suit one setting nut 18 of the two ends of bolt, the last two ends of one interconnective X-shaped expansion link 19 are individually fixed in two setting nuts, the lower end of expansion link 19 is V-shaped, and V-type bottom 20 is fixed on the adjustable column 4.When shaking handle 7, two setting nuts 18 move in opposite directions or oppositely with the rotation of bolt 17, the distance at the last two ends of expansion link 19 also changes thereupon, because each point of crossing of a plurality of interconnective X-shaped expansion links is flexible connection, the length of whole expansion link promptly changes thereupon, owing to fixedly connected with adjustable column 4 in the lower end 20 of expansion link, therefore, the height of adjustable column can be controlled by handle again.
The adjustable column 4 of present embodiment is a hollow, and its outer wall is established a contact 3, the fixedly connected rope 2 of this contact, and this rope penetrates adjustable column by the pulley 1 on mounting top, and the other end of rope connects a hanging heavy hammer 6 (see figure 1)s.Hanging heavy hammer plays stabilization in this device.
Install certain frame 13 in the upper end of adjustable column.When system moves for the first time, or after the position change of video camera or laser instrument, need calibrate, with the conversion parameter between the image coordinate system of determining laser coordinate and foundation total system.Can take off the calibration frame after the calibration.
Also can install the fixing locating rack 12 of measured object position on adjustable column, its structure can be as shown in Figure 3.When carrying out laser detection as the head to the people, the people is sitting in the scene motionless, and locating rack is fixed head, by the rotation of cantilever, drives whole optical devices and obtains needed three-dimensional data.
Two video cameras 16 of this device are photoelectricity coupling (charge coupleddevice CCD) video camera.
The utility model three-dimensional laser scanner in use can be adjusted position, focal length and the aperture of video camera according to field condition, adjusts the projecting direction of laser generator, adjusts the height of adjustable column.
Claims (5)
1, a kind of three-dimensional laser scanner, form by mounting (5), adjustable column (4), stepper motor (8), cantilever (10), laser generator (14), video camera (16) etc., it is characterized in that: adjustable column (4) is installed on the mounting (5), the top of adjustable column is cantilever (10), fix a rotating shaft (9) on the cantilever, cantilever is connected with adjustable column by this rotating shaft, and a stepper motor (8) that can drive rotating shaft (9) rotation is installed on the cantilever (10); A cross bar (15) is equipped with on the top of cantilever, fixing respectively installing one video camera (16) in the two ends of cross bar, the fixing installing in the middle part of cross bar one laser generator (14); Illuminating lamp (11) is housed on the cantilever; Mounting (5) is gone up installing one handle (7), and the front end of handle connects a regulating device, and this regulating device is connected with adjustable column (4) again.
2, three-dimensional laser scanner as claimed in claim 1, it is characterized in that: described regulating device is that the front end at handle (7) connects a bolt (17), this bolt is that the bolt by two reverse screw threads is welded, each suit one setting nut (18) of the two ends of bolt, the last two ends of one interconnective X-shaped expansion link (19) are individually fixed in two setting nuts (18), the lower end of expansion link is V-shaped, and V-type bottom (20) are fixed on the adjustable column (4).
3, three-dimensional laser scanner as claimed in claim 1, it is characterized in that: adjustable column (4) is hollow, its outer wall is established a contact (3), the fixedly connected rope of this contact (2), this rope penetrates adjustable column (4) by the pulley (1) on mounting top, and the other end of rope connects a hanging heavy hammer (6).
4, three-dimensional laser scanner as claimed in claim 1 is characterized in that: install certain frame (13) in the upper end of adjustable column.
5, three-dimensional laser scanner as claimed in claim 1 is characterized in that: the installing one fixing locating rack of measured object position (12) on adjustable column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00205342 CN2462415Y (en) | 2000-03-14 | 2000-03-14 | Three dimensional laser scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00205342 CN2462415Y (en) | 2000-03-14 | 2000-03-14 | Three dimensional laser scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462415Y true CN2462415Y (en) | 2001-11-28 |
Family
ID=33573529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00205342 Expired - Fee Related CN2462415Y (en) | 2000-03-14 | 2000-03-14 | Three dimensional laser scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462415Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825517A (en) * | 2010-05-17 | 2010-09-08 | 西安炬光科技有限公司 | Biaxial rotary scanning mechanism for testing laser and laser far-field test device |
| CN106679590A (en) * | 2016-12-29 | 2017-05-17 | 中国科学院长春光学精密机械与物理研究所 | Three-dimensional scanning equipment and three-dimensional scanner |
| CN107894207A (en) * | 2017-12-27 | 2018-04-10 | 河南龙宇信息技术有限公司 | A kind of 3D laser scanners |
-
2000
- 2000-03-14 CN CN 00205342 patent/CN2462415Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825517A (en) * | 2010-05-17 | 2010-09-08 | 西安炬光科技有限公司 | Biaxial rotary scanning mechanism for testing laser and laser far-field test device |
| CN101825517B (en) * | 2010-05-17 | 2012-09-05 | 西安炬光科技有限公司 | Biaxial rotary scanning mechanism for testing laser and laser far-field test device |
| CN106679590A (en) * | 2016-12-29 | 2017-05-17 | 中国科学院长春光学精密机械与物理研究所 | Three-dimensional scanning equipment and three-dimensional scanner |
| CN107894207A (en) * | 2017-12-27 | 2018-04-10 | 河南龙宇信息技术有限公司 | A kind of 3D laser scanners |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |