CN201041488Y - Rock surface three-dimensional appearance measuring instrument - Google Patents
Rock surface three-dimensional appearance measuring instrument Download PDFInfo
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- CN201041488Y CN201041488Y CNU2007200697317U CN200720069731U CN201041488Y CN 201041488 Y CN201041488 Y CN 201041488Y CN U2007200697317 U CNU2007200697317 U CN U2007200697317U CN 200720069731 U CN200720069731 U CN 200720069731U CN 201041488 Y CN201041488 Y CN 201041488Y
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- dimensional appearance
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Abstract
The utility model relates to a measuring instrument for the three-dimensional profilometry of a rock surface. The utility model comprises a pedestal, an optical grating fixed on the pedestal and used for the generation of the pre-set phase, and an optical grating projection device used to project the grid formed by the optical grating to the rock surface to be measured and to divide the rock to be measured into a plurality of measurement spaces; two camera devices fixed on the pedestal and used for the filming of a standard reference frame and the image of the rock to be measured and divided into a plurality of measurement spaces; a data acquisition device connected with the two camera devices, and used for the acquisition of the image data taken by the two camera devices; and a functional relation used to establish the coordinate between the image point and the actual space according to the actual space azimuth coordinate and the image point space coordinate of the standard reference frame image taken by the two cameras, as well as a computer used to calculate out the actual space azimuth coordinates of a plurality of measurement spaces according to the functional relation, to obtain the three-dimensional profilometry of the rock surface to be measured, thereby realizing the effective and quick measurement of the three-dimensional profilometry of the rock surface to be measured.
Description
Technical field
The utility model relates to a kind of surface three-dimensional appearance of rock measuring instrument.
Background technology
The measuring equipment of measuring the rock surface pattern at present both at home and abroad roughly has two types, the contactless pattern instrument of the contact pattern instrument of mechanical probe and laser probe.The both can't directly obtain the three-dimensional appearance of rock surface, can only do the three-dimensional appearance that combination obtains rock surface to point data or the line data measured, so speed data volume slow, that one-shot measurement obtains is few when actual measurement, and measuring accuracy is subject to the influence of sampling interval.Owing to be subjected to the restriction of effective survey area of pattern instrument and elevation, when measuring the large scale rock surface, must carry out areal survey simultaneously, cause datum line to be difficult to determine, so large-scale metrology is accurately lower.
Therefore, how to solve that many shortcomings that prior art exists are real to have become the technical task that those skilled in the art need to be resolved hurrily.
Summary of the invention
The purpose of this utility model is to provide a kind of surface three-dimensional appearance of rock measuring instrument, with realization the rock surface shape characteristic is measured fast and effectively.
In order to achieve the above object, the utility model provides a kind of surface three-dimensional appearance of rock measuring instrument, it comprises: pedestal, be fixed on the described pedestal, be used to produce the grating of preset phase, and the grid that described grating is formed is projected to rock surface to be measured described rock to be measured is divided into the optical grating projection device of a plurality of measurement spaces, be fixed on the described pedestal, be used to take two camera heads of the image of object of reference and the described rock to be measured that has been divided into a plurality of measurement spaces, be connected with described two camera heads, be used to gather the data collector of the captured view data of described two camera heads, and be connected with described data collector, the picture point volume coordinate that is used for the described object of reference image taken according to the real space azimuthal coordinates of described object of reference and two video cameras is set up the funtcional relationship of picture point and real space coordinate, and analyze the view data gathered obtaining the corresponding picpointed coordinate of described a plurality of measurement space, and the real space azimuthal coordinates that calculates described a plurality of measurement spaces according to described picpointed coordinate and described funtcional relationship is with the computing machine of the three-dimensional appearance that obtains described rock surface to be measured.
Wherein, described optical grating projection device produces the grating with discrete binary coded message, and described surface three-dimensional appearance of rock measuring instrument also comprises the calibrating block that is used for as the object of reference of the funtcional relationship of setting up picture point and real space coordinate.
In sum, surface three-dimensional appearance of rock measuring instrument of the present utility model is by to measuring the real space coordinate of each measurement space cutting apart of rock surface, and then can obtain the three-dimensional appearance feature of described rock surface, realize the measurement of rock shape characteristic fast and effectively.
Description of drawings
Fig. 1 is the synoptic diagram of surface three-dimensional appearance of rock measuring instrument of the present utility model.
Fig. 2 a to Fig. 2 d is the grating synoptic diagram that surface three-dimensional appearance of rock measuring instrument of the present utility model is produced.
Fig. 3 is the measuring principle synoptic diagram of surface three-dimensional appearance of rock measuring instrument of the present utility model.
Embodiment
See also Fig. 1, surface three-dimensional appearance of rock measuring instrument 1 of the present utility model comprises at least: pedestal 11, optical grating projection device 13, calibrating block, two camera head 15a and 15b, data collector and computing machine, be simplicity of illustration, described calibrating block, described data collector and computing machine all do not give diagram, illustrate in advance at this.
Described pedestal, in order to support described optical grating projection device 13 and two camera head 15a and 15b, it can be tripod usually, and it highly also can be regulated arbitrarily.
Described optical grating projection device 13 is fixed on the described pedestal, be used to produce the grating of preset phase, and the grid that described grating is formed is projected to rock surface to be measured so that described rock surface to be measured is divided into a plurality of measurement spaces, the grating that is produced has discrete binary-coded information, see also Fig. 2 a to 2d, wherein, grating shown in Fig. 2 a can be divided into 2 measurement spaces with described rock surface to be measured, grating shown in Fig. 2 b can be divided into 4 measurement spaces with described rock surface to be measured, grating shown in Fig. 2 c can be divided into 8 measurement spaces with described rock surface to be measured, grating shown in Fig. 2 d can be divided into 16 measurement spaces with described rock surface to be measured, in addition, those skilled in the art also can require to adopt the different in width grid according to realistic accuracy.
Described calibrating block is used for the calibrating block as the object of reference of the funtcional relationship of setting up picture point and real space coordinate, and described calibrating block is provided with the series of standards point, and the point between each standard point is apart from fixing.
Described two camera head 15a and 15b are individually fixed on the described pedestal, be used to take object of reference and the described image that has been divided into the rock to be measured of a plurality of measurement points, as shown in Figure 1, described two camera head 15a and 15b are separately fixed at the both sides of described optical grating projection device 13, and the both is high-precision industrial CCD camera.
Described data collector 16, be installed on the computer motherboard, be connected with described two camera heads by data line, be used to gather described two view data that camera head is captured, it is a data collecting card, because the principle of camera head image data and structure is known to those skilled in the art knows is no longer given unnecessary details at this.
Described computing machine 17, be connected with described data collector, the picture point volume coordinate that is used for the described object of reference image taken according to the real space azimuthal coordinates of described object of reference and two video cameras is set up the funtcional relationship of picture point and real space coordinate, and the view data that analysis is gathered is to obtain the corresponding picpointed coordinate of described a plurality of measurement point, and calculate the real space azimuthal coordinates of described a plurality of measurement points to obtain the three-dimensional appearance of described rock surface to be measured according to described picpointed coordinate and described funtcional relationship, for example, several standard points on the selected described calibrated bolck of survey crew, absorb the image of described several standard points by described camera head 15a and 15b, because the point between each standard point is apart from fixing, by a distance being measured and the image slices space of points coordinate of captured each standard point, described computing machine can calculate related parameter values according to the principle of photogrammetry, can set up the funtcional relationship of picture point volume coordinate and real space coordinate thus, work as described optical grating projection device 13 projections then and count the grating of width of cloth specific coding to rock to be measured, two cameras that form an angle be 15a and 15b adopt synchronously respective image, see also Fig. 3, P point for rock surface to be measured, described computing machine is decoded and phase calculation to the view data of being gathered, and utilize matching technique can obtain the picpointed coordinate of P point in the captured image of described two camera head 15a and 15b to be respectively P1 and P2, described computing machine can calculate the three-dimensional coordinate of two public vision area interior pixel points of camera head in the funtcional relationship according to picpointed coordinate of being set up and real space azimuthal coordinates, be noted that described computing machine is finished aforementioned each function by analysis software.
In addition, if the surface area of rock to be measured exceeds maximum effectively survey area, can be by pasting unique point and repeatedly measure, and repeatedly measurement result is carried out unique point and is spliced automatically, can obtain the three-dimensional feature value on large scale rock surface.
In sum, surface three-dimensional appearance of rock measuring instrument of the present utility model has overcome the problem of Mechanical Contact formula and the existence of laser without contact measuring method, and measurement size and position are unrestricted, be easy to carry, can be used for testing laboratory and scene, obtained highly integrated surface three-dimensional appearance of rock measuring instrument, the surface three-dimensional appearance of rock of complexity is measured and the pattern parameter calculation procedure, utilize the characteristics such as simple to operate, portable, man-machine interaction of computer program to be simplified, accomplish one-key operation.Measuring speed is fast, and data volume is big and error is little.
Claims (3)
1. surface three-dimensional appearance of rock measuring instrument is characterized in that comprising:
Pedestal;
The optical grating projection device is fixed on the described pedestal, is used to produce the grating of preset phase, and the grid that described grating is formed is projected to rock surface to be measured so that described rock surface to be measured is divided into a plurality of measurement spaces; Two camera heads are fixed on the described pedestal, are used to take object of reference and the described image that has been divided into the rock to be measured of a plurality of measurement spaces;
Data collector is connected with described two camera heads, is used to gather described two view data that camera head is captured;
Computing machine, be connected with described data collector, the picture point volume coordinate that is used for the described object of reference image taken according to the real space azimuthal coordinates of described object of reference and two video cameras is set up the funtcional relationship of picture point and real space coordinate, and the view data of analyzing the rock to be measured gathered to be obtaining the corresponding picpointed coordinate of described a plurality of measurement space, and calculates the real space azimuthal coordinates of described a plurality of measurement spaces to obtain the three-dimensional appearance of described rock surface to be measured according to described picpointed coordinate and described funtcional relationship.
2. surface three-dimensional appearance of rock measuring instrument as claimed in claim 1 is characterized in that: described optical grating projection device produces the grating with discrete binary coded message.
3. surface three-dimensional appearance of rock measuring instrument as claimed in claim 1 is characterized in that also comprising: be used for the calibrating block as the object of reference of the funtcional relationship of setting up picture point and real space coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200697317U CN201041488Y (en) | 2007-05-11 | 2007-05-11 | Rock surface three-dimensional appearance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200697317U CN201041488Y (en) | 2007-05-11 | 2007-05-11 | Rock surface three-dimensional appearance measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN201041488Y true CN201041488Y (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200697317U Expired - Fee Related CN201041488Y (en) | 2007-05-11 | 2007-05-11 | Rock surface three-dimensional appearance measuring instrument |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445164A (en) * | 2011-10-12 | 2012-05-09 | 北京航空航天大学 | Large-scale component surface three-dimensional appearance vision measurement method and system |
| CN103267477A (en) * | 2013-06-18 | 2013-08-28 | 成都理工大学 | Adjustable variable-resistance structural surface three-dimensional shape measuring device |
| CN103438864A (en) * | 2013-08-07 | 2013-12-11 | 长江勘测规划设计研究有限责任公司 | Real-time digital geological record system for engineering side slope |
| CN103673934A (en) * | 2013-12-31 | 2014-03-26 | 中国矿业大学 | Method for detecting planeness of PCB based on network projection |
| CN105109051A (en) * | 2015-08-05 | 2015-12-02 | 应小龙 | Manufacturing method of steering-wheel sleeve |
| CN105806316A (en) * | 2014-12-31 | 2016-07-27 | 上海新跃仪表厂 | Trinocular vision sensor for micro/nano satellite and measurement method thereof |
| CN109188545A (en) * | 2018-08-15 | 2019-01-11 | 贵州大学 | Scanner is used in a kind of exploitation of intake type ore-rock |
-
2007
- 2007-05-11 CN CNU2007200697317U patent/CN201041488Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445164A (en) * | 2011-10-12 | 2012-05-09 | 北京航空航天大学 | Large-scale component surface three-dimensional appearance vision measurement method and system |
| CN103267477A (en) * | 2013-06-18 | 2013-08-28 | 成都理工大学 | Adjustable variable-resistance structural surface three-dimensional shape measuring device |
| CN103267477B (en) * | 2013-06-18 | 2015-08-05 | 成都理工大学 | Adjustable rheostat structural plane apparatus for measuring three-dimensional profile |
| CN103438864A (en) * | 2013-08-07 | 2013-12-11 | 长江勘测规划设计研究有限责任公司 | Real-time digital geological record system for engineering side slope |
| CN103438864B (en) * | 2013-08-07 | 2015-10-21 | 长江勘测规划设计研究有限责任公司 | Engineering slope real-time digital geological record system |
| CN103673934A (en) * | 2013-12-31 | 2014-03-26 | 中国矿业大学 | Method for detecting planeness of PCB based on network projection |
| CN105806316A (en) * | 2014-12-31 | 2016-07-27 | 上海新跃仪表厂 | Trinocular vision sensor for micro/nano satellite and measurement method thereof |
| CN105806316B (en) * | 2014-12-31 | 2018-11-06 | 上海新跃仪表厂 | Trinocular vision sensor and its measurement method for micro-nano satellite |
| CN105109051A (en) * | 2015-08-05 | 2015-12-02 | 应小龙 | Manufacturing method of steering-wheel sleeve |
| CN109188545A (en) * | 2018-08-15 | 2019-01-11 | 贵州大学 | Scanner is used in a kind of exploitation of intake type ore-rock |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20110511 |