CN105157565A - Volume measuring instrument for object difficult to reach - Google Patents
Volume measuring instrument for object difficult to reach Download PDFInfo
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- CN105157565A CN105157565A CN201510230537.1A CN201510230537A CN105157565A CN 105157565 A CN105157565 A CN 105157565A CN 201510230537 A CN201510230537 A CN 201510230537A CN 105157565 A CN105157565 A CN 105157565A
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- measuring instrument
- universal stage
- image acquisition
- volume measuring
- laser
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Abstract
The invention discloses a volume measuring instrument for an object difficult to reach. The volume measuring instrument comprises a sealing box. A measuring instrument control system is disposed below the sealing box. The sealing box is provided internally with an image acquisition unit. A rotary table mechanism is disposed at an opposite position to the image acquisition unit. A rack is disposed on the upper half of the image acquisition unit. A reducing mechanism, a laser and a laser control motor are mounted on the rack. The lower half of the image acquisition unit comprises a fixed plate II. A movable support is disposed on the fixed plate II. A camera is connected movably on the movable support. The camera is connected with a computer. A fixed plate I and the fixed plate II are fixedly connected via a plurality of support columns. The rotary table mechanism comprises a rotary table. A rotary table control motor is connected below the rotary table. The measuring instrument control system comprises a microprocessor. The microprocessor is connected with a laser control motor drive chip and a rotary table control motor drive chip.
Description
Technical field
The present invention relates to a kind of object volume measurement mechanism, specifically one not easily contacts object volume measuring instrument.
Background technology
Cubing is the method for understanding thingness conventional in productive life.At present, the main method measuring object volume uses the drainage of Archimedes principle.But, because glassware for drinking water has certain tension force, its volume arranging water does not strictly equal the volume of object, and some object has water absorptivity, measuring error is increased further, for the object that some can not contact with water, the medicine etc. as historical relic, Yi Yushui generation chemical reaction all can not be measured with drainage.
Summary of the invention
In order to solve the defect that above-mentioned prior art exists, the invention provides one and not easily contacting object volume measuring instrument, when not contacting with testee, the accurate measurement to object volume can be realized.
The technical solution used in the present invention: one not easily contacts object volume measuring instrument, comprise seal case, be provided with measuring instrument control system below described seal case, be provided with image acquisition device in seal case inside, the position relative with image acquisition device is provided with universal stage mechanism; Described image acquisition device is divided into upper and lower two parts, image acquisition device the first half comprises fixed head I, fixed head I is provided with frame, frame is provided with reducing gear, laser instrument and laser control motor, the output terminal of described laser control motor connects the input end of reducing gear, described laser instrument is provided with turning axle, and turning axle connects the output terminal of reducing gear;
Image acquisition device the latter half comprises fixed head II, and fixed head II is provided with travel(l)ing rest, travel(l)ing rest is flexibly connected a camera, and described camera connects computing machine; Described fixed head I and fixed head II are connected and fixed by multiple support column; Described universal stage mechanism comprises universal stage, connects a universal stage and control motor below universal stage; Described measuring instrument control system comprises microprocessor, and microprocessor respectively connecting laser controls motor drive ic and universal stage control motor drive ic.
Beneficial effect of the present invention: the image information being obtained testee by laser scans and camera shooting, and image information is sent to computing machine, by the surface points cloud information of computing machine according to the scanning object received, adopt point cloud matching algorithm, then these surface points clouds are matched to a complete three-dimensional model imports to the three-dimensional model rebuild in Rhino software, and this software calculates the volume of object by surface interpolation algorithm.The present invention is different from traditional dimensional measurement calculating, drainage is measured, and does not need directly to contact with testee, can accurately measure the volume of object.
Accompanying drawing explanation
Fig. 1 is system chart of the present invention;
Fig. 2 is the circuit theory diagrams of measuring instrument control system of the present invention;
Fig. 3 is the structural representation of image acquisition device of the present invention;
Fig. 4 is the structural representation of universal stage mechanism of the present invention;
Fig. 5 is one-piece construction figure of the present invention.
Embodiment
In order to state details and the advantage thereof of technical solution of the present invention better, be now described further by reference to the accompanying drawings.
As shown in Figure 3, Figure 4, one not easily contacts object volume measuring instrument, it is characterized in that: comprise seal case 9, is provided with measuring instrument control system below described seal case 9, be provided with image acquisition device in seal case 9 inside, the position relative with image acquisition device is provided with universal stage mechanism; Described image acquisition device is divided into upper and lower two parts, image acquisition device the first half comprises fixed head I 10, fixed head I 10 is provided with frame 13, frame 13 is provided with reducing gear 1, laser instrument 3 and laser control motor 4, the output terminal of described laser control motor 4 connects the input end of reducing gear 1, and described laser instrument 3 is provided with turning axle, and turning axle connects the output terminal of reducing gear 1, laser instrument under the drive of reducing gear, can be moved up and down;
Image acquisition device the latter half comprises fixed head II 11, fixed head II 11 is provided with travel(l)ing rest 5, travel(l)ing rest 5 is flexibly connected a camera 2, described camera 2 connects computing machine, image transmitting will be taken to computing machine, carry out image procossing and three-dimensional model structure by computing machine, and calculate testee volume according to three-dimensional model; Described fixed head I 10 and fixed head II 11 are connected and fixed by 4 support columns 12; Described universal stage mechanism comprises universal stage 6, connects a universal stage and control motor 7 below universal stage 6; As shown in Figure 1, described measuring instrument control system comprises microprocessor, and connecting laser controls motor drive ic 14 to microprocessor respectively, universal stage controls motor drive ic 15 and camera 2.
Wherein, described frame 13 is for being arranged on two pieces of risers on fixed head I 10, and two pieces of risers are fixed by 3 bolts; Described reducing gear 1 adopts gear set to slow down, and its reduction gear ratio is 1:20; Described universal stage controls motor and is arranged on fixed station 14, and described fixed station 14 is bolted on seal case 9 by multiple; Described seal case 9 is provided with 2, left and right and controls button 8, controls laser control motor and universal stage control electric machine rotation respectively; Described travel(l)ing rest 5 can regulate the height of camera 2, the elevation angle and horizontal direction; Described seal case (9) is furnished with upper cover, seal case (9) and upper cover thereof all adopt opaque wood materials, and inside scribbles opaque black coating, and its effect prevents external light source to the interference of laser scanning, be conducive to collecting image more clearly, make measurement result more accurate.
As shown in Figure 2, the microprocessor of described measuring instrument control system adopts STC89C51 single-chip microcomputer, and laser control motor drive ic 14 adopts 2 L9110 chips, and universal stage controls motor drive ic 15 and adopts ULN2003N chip; 6 pin of two panels L9110,7 pin are connected with 1 pin of STC89C51,2 pin, 3 pin, 4 pin respectively, 8 pin of two panels L9110, the equal ground connection of 5 pin, and 2 pin, 3 pin connect positive supplies, and 1 pin, 4 pin drive laser control electric machine rotations; 10 pin of single-chip microcomputer, 11 pin connect two respectively and control buttons 8, and 21 ~ 28 pin of single-chip microcomputer connect 8 ~ 1 pin of UNL2003N chip respectively, and 16 pin of UNL2003N, 12 pin and 15 pin, 13 pin drive universal stages to control electric machine rotations.
During use, testee is placed on universal stage 6, press left side and control button, laser control motor drive ic 14 receives drive singal, controls laser control motor 4 and rotates, the turning axle of laser instrument 3 is driven to rotate by gear reduction, laser instrument at the uniform velocity moves up and down, and irradiates testee, meanwhile, Microprocessor S3C44B0X camera 2 gathers testee image, and the image information collected is transferred to computing machine.After testee side image acquisition completes, press right side and control button, universal stage controls motor drive ic 15 and receives drive singal, controls universal stage and rotates clockwise 90 °, next repeat above-mentioned steps, until laser instrument carries out four scanning to testee.Finally, by the surface points cloud information of computing machine according to receive four scanning objects, adopt point cloud matching algorithm, these surface points clouds are matched to a complete three-dimensional model.Then the three-dimensional model rebuild is imported in Rhino software, this software calculates the volume of object by surface interpolation algorithm.
Claims (8)
1. one kind not easily contacts object volume measuring instrument, it is characterized in that: comprise a seal case (9), described seal case (9) below is provided with measuring instrument control system, and be provided with image acquisition device in seal case (9) inside, the position relative with image acquisition device is provided with universal stage mechanism; Described image acquisition device is divided into upper and lower two parts, image acquisition device the first half comprises fixed head I (10), fixed head I (10) is provided with frame (13), frame (13) is provided with reducing gear (1), laser instrument (3) and laser control motor (4), the output terminal of described laser control motor (4) connects the input end of reducing gear (1), described laser instrument (3) is provided with turning axle, and turning axle connects the output terminal of reducing gear (1);
Image acquisition device the latter half comprises fixed head II (11), and fixed head II (11) is provided with travel(l)ing rest (5), upper flexible connection one camera (2) of travel(l)ing rest (5), and described camera (2) connects computing machine; Described fixed head I (10) and fixed head II (11) are connected and fixed by multiple support column (12); Described universal stage mechanism comprises universal stage (6), and universal stage (6) below connects a universal stage and controls motor (7); Described measuring instrument control system comprises microprocessor, and connecting laser controls motor drive ic (14) to microprocessor respectively, universal stage controls motor drive ic (15) and camera.
2. not easily contact object volume measuring instrument according to claim 1, is characterized in that: described frame (13) is for being arranged on two pieces of risers on fixed head I (10), and two pieces of risers are fixed by multiple bolt.
3. not easily contact object volume measuring instrument according to claim 1, is characterized in that: described reducing gear (1) adopts gear set to slow down, and its reduction gear ratio is 1:20.
4. not easily contact object volume measuring instrument according to claim 1, is characterized in that: described universal stage controls motor and is arranged on fixed station (14), and described fixed station (14) is bolted on seal case (9) by multiple.
5. not easily contact object volume measuring instrument according to claim 1, is characterized in that: described seal case (9) is provided with 2 and controls button (8), controls laser control motor and the rotation of universal stage control motor respectively.
6. not easily contact object volume measuring instrument according to claim 1, it is characterized in that: the microprocessor of described measuring instrument control system adopts STC89C51 single-chip microcomputer, laser control motor drive ic (14) adopts 2 L9110 chips, and universal stage controls motor drive ic (15) and adopts ULN2003N chip.
7. not easily contact object volume measuring instrument according to claim 1, is characterized in that: described travel(l)ing rest (5) can regulate the height of camera (2), the elevation angle and horizontal direction.
8. not easily contact object volume measuring instrument according to claim 1, is characterized in that: described seal case (9) is furnished with upper cover, and seal case (9) and upper cover thereof all adopt opaque wood materials, and inside scribbles opaque black coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510230537.1A CN105157565B (en) | 2015-05-07 | 2015-05-07 | It is not easy to contact object volume measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510230537.1A CN105157565B (en) | 2015-05-07 | 2015-05-07 | It is not easy to contact object volume measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105157565A true CN105157565A (en) | 2015-12-16 |
| CN105157565B CN105157565B (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510230537.1A Active CN105157565B (en) | 2015-05-07 | 2015-05-07 | It is not easy to contact object volume measuring instrument |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070265728A1 (en) * | 2006-05-10 | 2007-11-15 | The Boeing Company | Merged laser and photogrammetry measurement using precise camera placement |
| CN103063134A (en) * | 2012-12-26 | 2013-04-24 | 浙江大学 | Gravel geometric feature acquisition system and acquisition method |
| CN104251669A (en) * | 2014-08-28 | 2014-12-31 | 合肥斯科尔智能科技有限公司 | Three-dimensional scanning system with rotary workbench |
| CN204154271U (en) * | 2014-07-15 | 2015-02-11 | 广州大学 | A kind of Portable there-dimensional laser scanning instrument |
| CN204963938U (en) * | 2015-05-07 | 2016-01-13 | 徐州工程学院 | Difficult contact object volumetric apparatus |
-
2015
- 2015-05-07 CN CN201510230537.1A patent/CN105157565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070265728A1 (en) * | 2006-05-10 | 2007-11-15 | The Boeing Company | Merged laser and photogrammetry measurement using precise camera placement |
| CN103063134A (en) * | 2012-12-26 | 2013-04-24 | 浙江大学 | Gravel geometric feature acquisition system and acquisition method |
| CN204154271U (en) * | 2014-07-15 | 2015-02-11 | 广州大学 | A kind of Portable there-dimensional laser scanning instrument |
| CN104251669A (en) * | 2014-08-28 | 2014-12-31 | 合肥斯科尔智能科技有限公司 | Three-dimensional scanning system with rotary workbench |
| CN204963938U (en) * | 2015-05-07 | 2016-01-13 | 徐州工程学院 | Difficult contact object volumetric apparatus |
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| CN105157565B (en) | 2018-02-27 |
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