CN104697445A - Volume measurement method for stock pile with uneven base level - Google Patents
Volume measurement method for stock pile with uneven base level Download PDFInfo
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- CN104697445A CN104697445A CN201310665722.4A CN201310665722A CN104697445A CN 104697445 A CN104697445 A CN 104697445A CN 201310665722 A CN201310665722 A CN 201310665722A CN 104697445 A CN104697445 A CN 104697445A
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- point set
- reference field
- feature point
- volume
- zero plane
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Abstract
The invention discloses a volume measurement method for a stock pile with an uneven base level. The volume measurement method includes the steps of 1), acquiring a feature point set C (c0, c1...ci) of a stock ground base level; 2), selecting an optional elevation value P in the feature point set C of the base level of a stock ground, wherein a horizontal plane passing through the elevation value P is a zero plane; 3), projecting the feature point set C of the stock ground base level selected in the step 1) to the zero plane to construct a volume model, wherein the volume enclosed by the point set with the elevation smaller than the P and the zero plane is V0, and the volume enclosed by point set with the elevation greater or equal to the point set of the P and the zero plane is V1; 4), acquiring a feature point set D (d1, d2,...di) by the aid of a measuring device; 5), projecting the feature point set D of a stock ground surface selected in the step 4) into the zero plane to construct a volume model to acquire the stock pile volume V2; 6), real stock pile volume V=V2+V0-V1. The volume measurement method has the advantages of high precision, visual image, simpleness in operation, wide application range, easiness in implementation and the like.
Description
Technical field
The present invention is mainly concerned with the field of measuring technique of material stack volume, refers in particular to a kind of reference field out-of-flatness or is in the measuring method of the material stack volume on slope.
Background technology
In order to obtain the volume of large-scale stockpile exactly, conventional art is mainly adopted in two ways: 1. by artificial shaping, then measure, and calculates the volume of stockpile, and the shortcoming of this mode is: error is comparatively large, waste time and energy; 2. obtain stockpile surface characteristics point set by measurement mechanism (as laser ranging or laser scanning device), to cross the surface level of certain point for stockpile reference field, build Triangulated irregular network model or regular digital grid model; Be several triangular prisms or quadrangular by this model partition, accumulative little prism sum is material stack volume.This method substantially increases measuring accuracy and work efficiency, but once the face out-of-flatness of actual stock ground even stockpile be on slope, as the reference field being stockpile with the surface level crossing certain point, think more than reference field it is stockpile, the material stack volume so obtained can be bigger than normal or less than normal than actual volume, causes the error of measurement larger.
At present, the irregular material stack volume measuring method of solution reference field that practitioner proposes mainly contains two kinds, and method one is from stockpile surface characteristics point set A(a
0, a
1a
i) in, choose reference field feature point set B(b
0, b
1b
j), obtain the mean value p of elevation maximal value and minimum value in set B, to cross the surface level of p for stockpile reference field, more than this reference field be material stack volume.This method error is comparatively large, is not suitable for reference field big rise and fall or the larger situation of ramp amplitude; Method two is the triangle reference field obtaining having certain gradient according to data in set B, reference field volume is obtained according to triangle reference field area and stock ground length, stockpile true volume is that material stack volume deducts reference field volume, this method requires that the set B chosen will represent reference field feature as far as possible, otherwise the angle of gradient error obtained is large, be not suitable for reference field big rise and fall or the larger situation of ramp amplitude equally.In sum, the defect of existing these two kinds of irregular volume measuring methods of reference field above-mentioned is just: the scope of application is little, request for utilization is strict, measuring error is large.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical matters existed for prior art, the invention provides that a kind of precision is high, visual in image, simple to operate, wide accommodation and the irregular material stack volume measuring method of reference field easy to implement.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
The irregular material stack volume measuring method of a kind of reference field, the steps include:
(1) the feature point set C(c of stock ground reference field is obtained
0, c
1c
i);
(2) choose any height value P in the feature point set C of stock ground reference field, by the surface level of height value P, be zero plane;
(3) project on zero plane with the feature point set C of stock ground reference field selected in step (1) and build volume-based model; Elevation is less than the point set of P and zero plane institute containment body amasss as V
0, elevation is more than or equal to the point set of P and zero plane institute containment body amasss as V
1;
(4) measurement mechanism is utilized to obtain the feature point set D (d on stockpile surface
1, d
2... d
i);
(5) project on zero plane with the feature point set D on the stockpile surface chosen in step (4), build volume-based model, obtain material stack volume V
2;
(6) stockpile true volume V=V
2+ V
0-V
1.
As a further improvement on the present invention: in described step (1), utilize measurement mechanism to obtain the feature point set C(c of stock ground reference field
0, c
1c
i).
As a further improvement on the present invention: in described step (1), feature point set C(c is obtained from existing stock ground figure
0, c
1c
i).
As a further improvement on the present invention: described measurement mechanism is laser ranging or laser scanning device.
As a further improvement on the present invention: described volume-based model is triangular prism or quadrangular or tetrahedron.
As a further improvement on the present invention: in described step (2), the some c that elevation is minimum is chosen
1, by a c
1surface level be zero plane, now V
0be zero.
In described step (2), choose the some c that elevation is maximum
i, by a c
isurface level be zero plane, now V
1be zero.
Compared with prior art, the invention has the advantages that:
1, precision of the present invention is high, greatly reduce because of stockpile reference field out-of-flatness or be in the cubing error that slope brings.
2, wide accommodation of the present invention, goes for that any irregular, out-of-flatness, ramp amplitude are large, reference field rises and falls large reference field.
3, the present invention simple to operate, easily implement; Adopt general measure device can obtain reference field unique point, simple to operate, easily implement.The reference field in a stock ground is generally fixing, when this reference field is constant, can use in later measurement always; If stock ground reference field changes, just reference field volume need be recalculated.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Fig. 2 is the principle schematic of the present invention in embody rule example 1.
Fig. 3 is the principle schematic that the present invention builds grid model in embody rule example 1.
Fig. 4 is the principle schematic of the present invention in embody rule example 2.
Fig. 5 is the principle schematic that the present invention builds tetrahedral model in embody rule example 2.
Marginal data:
1, zero plane; 2, stock ground reference field; 3, stockpile surface.
Embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As shown in Figure 1, the irregular material stack volume measuring method of a kind of reference field of the present invention, the steps include:
(1) the feature point set C(c of stock ground reference field 2 is obtained
0, c
1c
i).In embody rule example, measurement mechanism can be utilized to obtain the feature point set C(c of stock ground reference field 2
0, c
1c
i), or from selected characteristic point set C(c existing stockpile figure
0, c
1c
i).Wherein, selected feature point set will represent the surface characteristics of stock ground reference field 2 as much as possible.Measurement mechanism can adopt laser ranging or laser scanning device according to actual needs.
As: certain some k(sd can be obtained from certain laser measuring device for measuring, α, β), sd is oblique distance, and α is horizontal angle, and β is pitch angle, can obtain k(x, y, z according to formula below).Wherein, x
0, y
0, z
0for current site coordinate, if current point is the initial point of reference field, then x
0=y
0=z
0=0; In like manner, from laser measuring device for measuring obtain some points utilize below formula convert to these point three-dimensional coordinate, morphogenesis characters point set C, for building TIN or regular digital grid model.
x=x
o+sd·cos(α)·sin(β)
y=y
o+sd·cos(α)·cos(β)
z=z
o+sd·sin(α)
(2) the some c that elevation in the feature point set C of stock ground reference field 2 is minimum is chosen
1, pass through c
1the surface level of point, is zero plane 1.
(3) project on zero plane 1 with the feature point set C of stock ground reference field 2 selected in step (1), build Triangulated irregular network model or regular digital grid model, be several triangular prisms or quadrangular by this model partition, then accumulative all prisms volume and, namely obtain material stack volume V
1.
As: stock ground reference field 2 is divided into N × N number of grid (shown in Fig. 2) by xy both direction, and this process is equivalent to the three dimensions that stock ground reference field and zero plane are formed to cut into N × N number of triangular prism or little quadrangular.
(4) measurement mechanism is utilized to obtain the feature point set D (d on stockpile surface 3
1, d
2... d
i).Wherein, the feature point set D on selected stockpile surface 3 will represent the feature on stockpile surface 3 as much as possible.Measurement mechanism can adopt laser ranging or laser scanning device according to actual needs.
(5) project on zero plane 1 with the feature point set D on the stockpile surface 3 chosen in step (4), build Triangulated irregular network model or regular digital grid model, be several triangular prisms or quadrangular by this model partition, then accumulative all prisms volume and, namely obtain material stack volume V
2.
(6) stockpile true volume V equals V
2deduct V
1.
In an embody rule example, as shown in Figure 3, for the cube sand drift of a long 10m, wide 10m, high 5m, this sand drift is placed on respectively on horizontal flat surface and out-of-flatness slope (gradient is about 2.5 °) and measures, adopting existing method one, existing method two and method provided by the invention to being placed on repetitive measurement on out-of-flatness slope, measuring and obtaining volume as following table 1:
The different reference field measurement volumes application condition of three kinds, table 1
Embodiment two:
As shown in Figure 1, the irregular material stack volume measuring method of a kind of reference field of the present invention, the steps include:
(1) the feature point set C(c of stock ground reference field 2 is obtained
0, c
1c
i), the step (1) of specific implementation reference example one, obtains the three-dimensional coordinate of each point in point set C, builds tetrahedral model.
(2) the some C of any elevation in the feature point set C of stock ground reference field 2 is chosen
1, pass through C
1the surface level of point, is shown in zero plane 1(Fig. 4).
(3) project on zero plane 1 with the feature point set C of stock ground reference field 2 selected in step (1), building tetrahedral model, be several tetrahedrons by this model partition, then accumulative all tetrahedral volumes with, elevation is less than C
1point set and zero plane 1 containment body amass as V
0, elevation is more than or equal to C
1point set and zero plane 1 containment body amass as V
1.
As: space stock ground reference field 2 and zero plane 1 surrounded, adopts three-dimensional dividing be several tetrahedrons (shown in Fig. 5) by spatial division, accumulative all tetrahedral volumes with.
(4) measurement mechanism is utilized to obtain the feature point set D (d on stockpile surface 3
1, d
2... d
i).Wherein, the feature point set D on selected stockpile surface 3 will represent the feature on stockpile surface 3 as much as possible.Measurement mechanism can adopt laser ranging or laser scanning device according to actual needs.
(5) project on zero plane 1 with the feature point set D on the stockpile surface 3 chosen in step (4), building tetrahedral model, be several tetrahedrons by this model partition, then accumulative all tetrahedral volumes with, namely obtain material stack volume V
2.
(6) stockpile true volume V=V
2+ V
0-V
1.
In above-mentioned embody rule example, as shown in Figure 4, for the cube sand drift of a long 10m, wide 10m, high 5m, this sand drift is placed on respectively on horizontal flat surface and out-of-flatness slope (gradient is about 2.5 °) and measures, adopting existing method one, existing method two and method provided by the invention to being placed on repetitive measurement on out-of-flatness slope, measuring and obtaining volume as following table 2:
The different reference field measurement volumes application condition of three kinds, table 2
Be appreciated that in other embodiments, in step (2), the some c that elevation is maximum can also be chosen
i, by a c
isurface level be zero plane, now V
1be zero.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (7)
1. the irregular material stack volume measuring method of reference field, it is characterized in that, step is:
(1) the feature point set C(c of stock ground reference field is obtained
0, c
1c
i);
(2) choose any height value P in the feature point set C of stock ground reference field, by the surface level of height value P, be zero plane;
(3) project on zero plane with the feature point set C of stock ground reference field selected in step (1) and build volume-based model; Elevation is less than the point set of P and zero plane institute containment body amasss as V
0, elevation is more than or equal to the point set of P and zero plane institute containment body amasss as V
1;
(4) measurement mechanism is utilized to obtain the feature point set D (d on stockpile surface
1, d
2... d
i);
(5) project on zero plane with the feature point set D on the stockpile surface chosen in step (4), build volume-based model, obtain material stack volume V
2;
(6) stockpile true volume V=V
2+ V
0-V
1.
2. the irregular material stack volume measuring method of reference field according to claim 1, is characterized in that, in described step (1), utilizes measurement mechanism to obtain the feature point set C(c of stock ground reference field
0, c
1c
i).
3. the irregular material stack volume measuring method of reference field according to claim 1, is characterized in that, in described step (1), obtains feature point set C(c from existing stock ground figure
0, c
1c
i).
4. the irregular material stack volume measuring method of reference field according to claim 1 or 2 or 3, it is characterized in that, described measurement mechanism is laser ranging or laser scanning device.
5. the irregular material stack volume measuring method of reference field according to claim 1 or 2 or 3, is characterized in that, described volume-based model is triangular prism or quadrangular or tetrahedron.
6. the irregular material stack volume measuring method of reference field according to claim 1 or 2 or 3, is characterized in that, in described step (2), chooses the some c that elevation is minimum
1, by a c
1surface level be zero plane, now V
0be zero.
7. the irregular material stack volume measuring method of reference field according to claim 1 or 2 or 3, is characterized in that, in described step (2), chooses the some c that elevation is maximum
i, by a c
isurface level be zero plane, now V
1be zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665722.4A CN104697445A (en) | 2013-12-10 | 2013-12-10 | Volume measurement method for stock pile with uneven base level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665722.4A CN104697445A (en) | 2013-12-10 | 2013-12-10 | Volume measurement method for stock pile with uneven base level |
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| Publication Number | Publication Date |
|---|---|
| CN104697445A true CN104697445A (en) | 2015-06-10 |
Family
ID=53344820
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310665722.4A Pending CN104697445A (en) | 2013-12-10 | 2013-12-10 | Volume measurement method for stock pile with uneven base level |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295095A (en) * | 2021-07-27 | 2021-08-24 | 成都理工大学 | High fill side slope geotechnical centrifugal model measurement control system |
Citations (4)
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|---|---|---|---|---|
| JPS57146106A (en) * | 1981-03-04 | 1982-09-09 | Mitsubishi Electric Corp | Measuring device |
| GB2157826A (en) * | 1984-04-17 | 1985-10-30 | Carves Simon Ltd | A surface topography measuring system |
| EP0373614A2 (en) * | 1988-12-16 | 1990-06-20 | Schlumberger Technologies Inc | Method for direct volume measurement of three dimensional features in binocular stereo images |
| CN102155913A (en) * | 2011-03-07 | 2011-08-17 | 湖南新航程智能测控技术有限公司 | Method and device for automatically measuring coal pile volume based on image and laser |
-
2013
- 2013-12-10 CN CN201310665722.4A patent/CN104697445A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146106A (en) * | 1981-03-04 | 1982-09-09 | Mitsubishi Electric Corp | Measuring device |
| GB2157826A (en) * | 1984-04-17 | 1985-10-30 | Carves Simon Ltd | A surface topography measuring system |
| EP0373614A2 (en) * | 1988-12-16 | 1990-06-20 | Schlumberger Technologies Inc | Method for direct volume measurement of three dimensional features in binocular stereo images |
| CN102155913A (en) * | 2011-03-07 | 2011-08-17 | 湖南新航程智能测控技术有限公司 | Method and device for automatically measuring coal pile volume based on image and laser |
Non-Patent Citations (2)
| Title |
|---|
| 刘占稳 等: "C型料场料堆体积计算", 《钢铁技术》 * |
| 姜志华: "基于激光扫描的堆料体积测量系统研究与设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295095A (en) * | 2021-07-27 | 2021-08-24 | 成都理工大学 | High fill side slope geotechnical centrifugal model measurement control system |
| CN113295095B (en) * | 2021-07-27 | 2021-10-15 | 成都理工大学 | High fill side slope geotechnical centrifugal model measurement control system |
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Application publication date: 20150610 |