CN101586946A - Stereo visual angle switching method and device for converse measurement - Google Patents
Stereo visual angle switching method and device for converse measurement Download PDFInfo
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- CN101586946A CN101586946A CNA2009100396760A CN200910039676A CN101586946A CN 101586946 A CN101586946 A CN 101586946A CN A2009100396760 A CNA2009100396760 A CN A2009100396760A CN 200910039676 A CN200910039676 A CN 200910039676A CN 101586946 A CN101586946 A CN 101586946A
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Abstract
The present invention discloses a stereo visual angle switching method for an converse measurement, an objecting to be measured is sprayed and coated with a developing agent, and attached with a mark point, and is placed on a switching platform of a stereo visual angle switching device; a lifting lever of the switching platform is adjusted upwards or downwards to ensure the height of the switching platform, then the height of a measuring machine is adjusted finely; after a focal distance between the measuring machine and the object being determined, a translational visual angle or a rotary visual angle of the object is measured through translating or rotating the switching platform, when measuring, if the distances between two surfaces of the object to be filmed and the measuring machine are unequal, there is need to film separately, such that the whole three-dimensional data of the object is obtained. The object is not needed to be rotated directly and the measuring machine is not conveyed, thus it is capable of obtaining an optimum measuring angle rapidly of the object by rotating, translating or lifting the switching platform, which avoid to convey the object or the measuring machine, avoid to a data layer, and is benefit to improve a measurement precision.
Description
Technical field
The invention belongs to the reverse-engineering measuring technique, be specifically related to a kind of reverse measurement perspective view changing method and perspective view switching device shifter.
Background technology
It very is extensively that reverse-engineering is used in sophisticated manufacturing, is to realize from the model to the three-dimensional model method from the three-dimensional model to the product fast.Reverse-engineering comprise instead fast ask, all too many levels such as rapid shaping, fast mould manufacturing and digital control processing.Wherein instead fast ask and comprise links such as DATA REASONING, data processing, three-dimensional reconstruction and model evaluation.
DATA REASONING can be divided into contact DATA REASONING and non-contact data and measure according to the difference of measuring principle.Based on non-contacting reverse DATA REASONING, realize that by optical measurement measuring machine sends More Wen Guang to the measured object surface, by camera collection surface three dimension discrete data in kind, and feed back to computing machine and store.The non-contact measurement mode does not have gauge head contact measured surface in measuring process, the damage of gauge head or measured surface and the compensation of gauge head radius have been avoided, not only speed is fast, and automaticity height, the microcosmic of all kinds of complex surface model or the three-dimensional of macroscopical position that are applicable to various soft or hard materials are measured at a high speed, therefore in a lot of engineerings and all adopt this measuring method in the scientific research.
During non-cpntact measurement, measured object is scanned by the traverse measurement machine, finish single pass after, the discrete data of acquisition is saved in the computing machine, computing machine splices scanned data by the distinguishing mark point, finishes until measurement.In the non-cpntact measurement process, in order to obtain the optimum scanning angle of measured object, often need constantly to adjust measuring machine or move measured object, to obtain the optimum scanning angle; Yet when the heavier measured object of direct mobile easy deformation or volume, not only the measurement experience and the muscle power of survey crew are had higher requirement, and cause the data hierarchy phenomenon easily, the three-dimensional data of the measured object that once obtains before data hierarchy is meant with after once the three-dimensional data of the measured object of acquisition do not overlap.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of reverse measurement perspective view changing method is provided, changing method of the present invention is simple and convenient, and is time saving and energy saving easy to implement.
The present invention also aims to provide a kind of perspective view switching device shifter.
Purpose of the present invention realizes by following proposal: a kind of perspective view switching device shifter, comprise switching platform and base, this switching platform flexibly connects by supporting mechanism and base, scribble not reflecting coating of black on the described switching platform, described supporting mechanism comprises, be used to rotate switching platform swingle, be used for the elevating lever of lifting switching platform, described swingle and elevating lever flexibly connect, place measured object on the described switching platform, described black not reflecting coating is the black paint coating.
Described swingle is provided with the control lever that the control swingle rotates in a circumferential direction, and the outside of described elevating lever also is arranged with orienting sleeve, and orienting sleeve is provided with the operating grip that the control elevating lever rises or descends.
Also be provided with the stop pin of elevating lever on the described orienting sleeve; Described elevating lever is provided with rule; Be provided with stiffener between described switching platform and the swingle, an end of stiffener connects the bottom surface of switching platform, and the other end connects the middle part of swingle; Described base also comprises feet and is installed in the roller of feet end that described roller is provided with detent.
A kind of reverse measurement perspective view changing method comprises the steps:
In the described step 4, in the process of measured object being carried out the gradation shooting, to adjust the height of switching platform, the height of fine setting test machine is auxilliary.
The present invention has following advantage and effect with respect to prior art: (1) just can make measured object can obtain the optimum measurement angle fast by rotation, translation or lifting switching platform because need not directly to rotate measured object itself or move measuring machine; (2) avoided manually moving measured object or measuring machine, reduced the requirement of survey crew the muscle power and the experience of measurement; (3) need not to move measured object, avoided data hierarchy, help improving measuring accuracy; (4) in measuring process, reduced the adjustment frequency of measuring machine, helped alleviating the wearing and tearing and the consumption of measuring machine, increased the service life; (5) switching platform of perspective view switching device shifter of the present invention, can realize lifting, translation within the specific limits by supporting mechanism, also can carry out 360 ° of rotations, can also be according to the reverse needs that take measurement of an angle, carry out positioned at arbitrary angles, thereby obtain the optimum measurement angle, and simple and compact for structure, cost is low, and is easy to utilize.
Description of drawings
Fig. 1 is the schematic flow sheet of the reverse measurement perspective view of the present invention changing method.
Fig. 2 is the structural representation of perspective view switching device shifter of the present invention.
Fig. 3 is that perspective view switching device shifter of the present invention cooperates the principle schematic when measuring machine uses in the reverse measurement perspective view changing method.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 2, perspective view switching device shifter of the present invention, comprise switching platform 5 and base, this switching platform 5 flexibly connects by supporting mechanism and base, described supporting mechanism comprises the swingle 4 that is used to rotate switching platform 5, the elevating lever 8 that is used for lifting switching platform 5, adopt between described swingle 4 and the elevating lever 8 to flexibly connect, the surface of described switching platform 5 is a black, can be by realizing at its external coating black paint.This perspective view switching device shifter is used for reverse measurement, and during measurement, the measured object that needs are measured places on the switching platform 5.
Described swingle 4 is provided with the control lever 3 that the control swingle rotates in a circumferential direction, and control lever 3 is used to control the rotation of swingle 4, has stopping function.When control lever 3 was tightened, swingle 4 was lockable, when unclamping, can about stir the rotation that control lever 3 is controlled swingle 4, switching platform 5 is rotated in a circumferential direction.For switching platform 5 is accurately rotated according to the angle of appointment, can rule 7 be set on elevating lever 8, the scale pointer is set on the swingle 4.
The outside of described elevating lever 8 also is arranged with orienting sleeve 11, and orienting sleeve 11 is provided with the operating grip 2 that the control elevating lever rises or descends, and also is provided with the stop pin 9 of elevating lever on the described orienting sleeve 11; Can realize the rising or the decline of switching platform 5 by shaking operating grip 2, there is screw thread on elevating lever 8 surfaces, under the situation that stop pin 9 unclamps, utilize gear drive to realize the lifting of switching platform 5 between operating grip 2 and the elevating lever 8.When the height of elevating lever 8 risings need remain unchanged, tighten stop pin 9 and just can realize that the height of switching platform 5 is in the motionless state of maintenance.
In order to make switching platform 5 when bearing a heavy burden, can be in the producing balanced forces situation well, keep the steady of switching platform 5, can between switching platform 5 and swingle 4, stiffener 6 be set, the bottom surface of the hinged switching platform 5 of one end of stiffener 6, the other end connects the middle part of swingle 4 by bolt, in order to make all stressed weighing apparatus more of switching platform 5, the quantity of stiffener 6 can adopt four or the six roots of sensation, and especially the effect when measured object is heavier greatly is comparatively obvious.
Described base has comprised feet 10 and has been installed in the roller 1 of feet 10 ends, and on roller 1, detent is set, roller 1 makes perspective view switching device shifter of the present invention smoothly to move on surface level, when roller 1 needs are mobile, opening detent gets final product, if need roller 1 to keep static, closed detent just can be realized.
Theoretical foundation of the present invention is, sets up at measured object 12 on the basis of identification point, and by lifting, translation or the rotation of switching platform 5, what each position of measured object 12 took place only is the variation of original relatively absolute position, but relative position does not change all the time.
Each position of measured object 12 does not have the variation of relative space position, do not influence the basic size of the measured object 12 that is on the switching platform 5, can not cause measured object 12 distortion, no matter switching platform 5 is lifting, translation or rotation, and the space length between measured object 12 surfaces connect a little arbitrarily remains constant.
Shown in Figure 3, measuring machine 13 maintains static, and only needs that the perspective view switching device shifter is carried out translation, rotation or lifting and carries out the visual angle switching, just can finish the total data of measured object 12 and measure.
Fig. 4 shows the structural scheme of mechanism of perspective view switching device shifter, and Fig. 1 shows reverse measurement perspective view changing method, comprises the steps:
Focal length between step 2, the camera of determining measuring machine and the measured object 12, specifically: by adjusting the rising or the decline of switching platform 5 elevating levers 8,, finely tune the height of measuring machine 13 then earlier to determine the height of switching platform 5;
Behind the focal length between step 3, the camera of determining measuring machine 13 and the measured object 12, by translation or rotate described switching platform 5, measured object 12 is carried out the translation visual angle or rotary viewing angle is measured;
In the above-mentioned steps four, in the process of measured object 12 being carried out the gradation shooting, to adjust the height of switching platform 5, the height of fine setting test machine 13 is auxilliary.
This reverse measurement perspective view changing method, need not to move measuring machine 13 and measured object 12 when advocating to measure, only need highly adjust measuring machine 13 for few time, other adjustment all is implemented on the measured object 12, i.e. switching platform 5 realizations by adjusting measurement mechanism.Specifically, when measured object 12 has sprayed developer, through super-dry, after the process such as label, with 5 (switching platform is a black) on the switching platform of measured object 12 placement perspective view switching device shifters, open measuring machine 13 and data processing software, switching platform 5 is carried out the height control first time, cooperation is to the fine setting of measuring machine 13 cameras, focal length is transferred to optimum distance, if measured object 12 has very significantly length and width characteristics advantage, preferentially testee 12 being carried out the translation visual angle measures, parallel this perspective view switching device shifter that moves, can't provide more multidata until translation measurement, then switching platform 5 is rotated, looks for other high-accuracy measuring angle of measured object 12 and measure; That is to say, when adjusting to the optimum measurement state for the first time between the camera of measuring machine 13 and the measured object 12, to measured object 12 carry out by a small margin be the axial rotation at center with certain point, perhaps translation all around, if two surfaces that measured object 12 successively is taken respectively and the distance between measuring machine 13 cameras is kept off or when unequal, then need these two the surperficial gradation that are taken are taken, after promptly having taken one of them surface, after readjusting the focal length between measuring machine camera and another surface, take again, until whole three-dimensional datas of obtaining measured object 12, in this process if needed, can also finely tune measuring machine 13 camera height, to satisfy the needs of measuring; If the angle of taking is undesirable, can be by rotating arbitrarily angled or translation switching platform 5 is realized.Repeat lifting, rotation or translation like this, surveyed fully until measured object 12.
As mentioned above, just can realize the present invention preferably.The foregoing description is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all within claim of the present invention scope required for protection.
Claims (10)
1, a kind of perspective view switching device shifter, comprise switching platform and base, this switching platform flexibly connects by supporting mechanism and base, it is characterized in that: scribble not reflecting coating of black on the described switching platform, described supporting mechanism comprises, be used to rotate switching platform swingle, be used for the elevating lever of lifting switching platform, described swingle and elevating lever flexibly connect, and place measured object on the described switching platform.
2, perspective view switching device shifter according to claim 1, it is characterized in that: described swingle is provided with the control lever that the control swingle rotates in a circumferential direction, the outside of described elevating lever also is arranged with orienting sleeve, and orienting sleeve is provided with the operating grip that the control elevating lever rises or descends.
3, perspective view switching device shifter according to claim 2 is characterized in that: the stop pin that also is provided with elevating lever on the described orienting sleeve.
4, perspective view switching device shifter according to claim 2 is characterized in that: be provided with stiffener between described switching platform and the swingle, an end of stiffener connects the bottom surface of switching platform, and the other end connects the middle part of swingle.
5, perspective view switching device shifter according to claim 1 is characterized in that: described base also comprises, feet and the roller that is installed in the feet end.
6, perspective view switching device shifter according to claim 5, it is characterized in that: described roller is provided with detent.
7, perspective view switching device shifter according to claim 2, it is characterized in that: described elevating lever is provided with rule.
8, according to each described perspective view switching device shifter in the claim 1～7, it is characterized in that: described black not reflecting coating is the black paint coating.
9, a kind of reverse measurement perspective view changing method is characterized in that, comprises the steps:
Step 1, on measured object, spray developer, treat the developer drying after, labelling point, and scribble black not on the switching platform of reflecting coating with what measured object placed the perspective view switching device shifter;
Step 2, determine the focal length between measuring machine camera and the measured object, specifically: by adjusting the rising or the decline of switching platform elevating lever,, finely tune the height of measuring machine then earlier to determine the height of switching platform;
Step 3, determine the focal length between measuring machine camera and the measured object after, by translation or rotate described switching platform, measured object is carried out the translation visual angle or rotary viewing angle is measured;
Step 4, in measured object being carried out the process that translation visual angle or rotary viewing angle measure, if two surfaces that measured object successively is taken respectively and the distance between measuring machine camera when unequal, then need these two the surperficial gradation that are taken are taken, after promptly having taken one of them surface, after readjusting the focal length between measuring machine camera and another surface, take again, until whole three-dimensional datas of obtaining measured object.
10, reverse measurement perspective view changing method according to claim 9 is characterized in that: in the described step 4, in the process of measured object being carried out the gradation shooting, to adjust the height of switching platform, the height of fine setting test machine is auxilliary.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100396760A CN101586946A (en) | 2009-05-22 | 2009-05-22 | Stereo visual angle switching method and device for converse measurement |
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| CNA2009100396760A CN101586946A (en) | 2009-05-22 | 2009-05-22 | Stereo visual angle switching method and device for converse measurement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455166A (en) * | 2010-10-15 | 2012-05-16 | 三星科技股份有限公司 | Method for measuring object |
| CN109064518A (en) * | 2018-06-28 | 2018-12-21 | 上海电机学院 | A kind of simple multi-vision visual caliberating device |
| CN112254676A (en) * | 2020-10-15 | 2021-01-22 | 天目爱视（北京）科技有限公司 | Portable intelligent 3D information acquisition equipment |
| CN112595280A (en) * | 2020-12-21 | 2021-04-02 | 吉林大学 | Method for measuring angled complex surface shape |
| CN112682333A (en) * | 2020-11-27 | 2021-04-20 | 泰州芯源半导体科技有限公司 | Grid gap switching platform and method based on data analysis |
-
2009
- 2009-05-22 CN CNA2009100396760A patent/CN101586946A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455166A (en) * | 2010-10-15 | 2012-05-16 | 三星科技股份有限公司 | Method for measuring object |
| CN109064518A (en) * | 2018-06-28 | 2018-12-21 | 上海电机学院 | A kind of simple multi-vision visual caliberating device |
| CN112254676A (en) * | 2020-10-15 | 2021-01-22 | 天目爱视（北京）科技有限公司 | Portable intelligent 3D information acquisition equipment |
| CN112682333A (en) * | 2020-11-27 | 2021-04-20 | 泰州芯源半导体科技有限公司 | Grid gap switching platform and method based on data analysis |
| CN112595280A (en) * | 2020-12-21 | 2021-04-02 | 吉林大学 | Method for measuring angled complex surface shape |
| CN112595280B (en) * | 2020-12-21 | 2022-02-01 | 吉林大学 | Method for measuring angled complex surface shape |
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Open date: 20091125 |