CN105371819A - Optical calibration long-distance measuring device and method - Google Patents
Optical calibration long-distance measuring device and method Download PDFInfo
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- CN105371819A CN105371819A CN201510934912.0A CN201510934912A CN105371819A CN 105371819 A CN105371819 A CN 105371819A CN 201510934912 A CN201510934912 A CN 201510934912A CN 105371819 A CN105371819 A CN 105371819A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides an optical calibration long-distance measuring device. The device comprises a support frame and laser transmitters, and the laser transmitters are installed on the support frame, wherein light rays emitted by the first laser transmitter are parallel to those emitted by the second laser transmitter, light rays emitted by the third laser transmitter and light rays emitted by the fourth laser transmitter are at fixed angles, and angular bisectors of the angles coincide with the light rays emitted by the first laser transmitter or the light rays emitted by the second laser transmitter. The invention further provides an optical calibration long-distance measuring method. The method comprises the steps of making a light source irradiate a measured object, using a telescope with graduation scales to observe the measured object and light spots formed on the object due to laser irradiation, measuring gaps among the light spots with the scales of a reticle plate in the telescope, and measuring and calculating out the dimension of the measured object and the distance between the measured object and each laser transmitter through a corresponding calculation method. The optical calibration long-distance measuring device and method have the advantages that the distance between the measured object and a measurement point, the dimension, such as the length and the height, of the measured object and the included angle between the measured object and the measurement direction can be measured.
Description
Technical field
The present invention relates to range observation field, be specifically related to optical ranging and survey long field.
Background technology
The equipment of current energy telemeasurement distance, mainly contains laser range finder and telescopic range finder.The former travels to and fro between the time of measuring equipment and testee by measuring light, then the light velocity applied in known air is to calculate measuring distance; The latter is by the graticule of mounting strap scale in telescope, and the scale size that the size of the familiar object arrived according to the observation and the image in telescope occupy carrys out estimated distance in proportion, also can estimate height or the length dimension of other objects observed simultaneously.Because laser range finder needs to receive the light reflected, so testee surface needs substantially vertical with the light sent when measuring, and will there be certain reflective function on its surface.Which limits the convenience of its usable range and operation.Telescopic range finder (range-finding telescope) needs the size of an estimation object, and do equal proportion calculate, actual can not Measurement accuracy distance.Patent 201420808695.1 discloses a kind of measuring equipment, and it adopts the directional light calibration measurements object of two bundle fixed ranges, and calculates testee according to the ratio of testee in measurement image and spot distance.Adopt the directional light calibration measurements object of two bundle fixed ranges and the method measuring object can not measure the distance of measured object and measurement point, and measured deviation is larger when testee and direction of measurement out of plumb.
Summary of the invention
The object of the invention is to solve optical ranging and survey long deviation comparatively greatly, or to range finding subject matter, there is optionally problem.
The present invention proposes a kind of optical calibrating telemetering medium, comprise bracing frame and generating laser, generating laser is installed on bracing frame; Described generating laser is point source emitters, described generating laser comprises the first generating laser, the second generating laser, the 3rd generating laser and the 4th generating laser, the light that wherein the first generating laser and the second generating laser send is parallel to each other, the light that 3rd generating laser and the 4th generating laser send is fixed angle, and the light that angular bisector and the first generating laser or second generating laser of described fixed angle send overlaps.
Further, the frame of support frame as described above is as cuboid, one end of bracing frame is provided with mounting hole, the bracing frame other end is provided with three erection columns, the post heart line of three erection columns is in same plane, wherein the post heart line of the first erection column and mounting hole are parallel to each other, and the post heart line of the second erection column and the 3rd erection column is fixed angle; The angular bisector of described fixed angle overlaps with the post heart line of the first erection column.
Further, the 5th generating laser and the 6th generating laser described bracing frame be also equipped with, the light place plane being perpendicular that the light place plane that 5th generating laser and the 6th generating laser send sends with the 3rd generating laser and the 4th generating laser, the 5th generating laser and the 6th generating laser emit beam angular bisector angularly overlap with the light that the first generating laser or the second generating laser send.
Further, support frame as described above is also provided with the 4th erection column and the 5th erection column in one end of three erection columns, the post heart line of the 4th erection column and the 5th erection column be that the angular bisector of angle overlaps with the post heart line of the first erection column, the post heart line place plane being perpendicular of the post heart line place plane of the 4th erection column and the 5th erection column and the second erection column and the 3rd erection column.
Further, the sidewall of erection column or mounting hole is provided with the some groups of adjustment holes that can regulate laser transmitter positions, each group adjustment hole is two, an adjustment hole wherein in arbitrary group of adjustment hole is positioned at the upper end of arbitrary erection column or mounting hole sidewall, and another adjustment hole in this group adjustment hole is positioned at the lower end of this erection column or mounting hole sidewall.
Further, the frame body of support frame as described above is provided with connecting hole or the link slot of exterior part.
The invention allows for the remote distance-finding method of a kind of optical calibrating, comprise following steps: be irradiated on testee by the light of laser transmitter projects, the line segment direction of the line and required survey that make the 3rd generating laser and the 4th generating laser irradiate hot spot on testee is parallel to each other, observe testee by suitable enlargement factor and with the telescope of graduation and on object, irradiated the hot spot formed by laser again, or take testee with the camera of suitable focal length and irradiated the hot spot formed on the surface by laser, then spot separation is measured by the scale on graticule in telescope, or directly measure without the spot separation on the photo of editor's distortion, the size of testee and the distance between testee and generating laser is calculated again by corresponding computing method, for clearly stating computing method, definition: the second generating laser is F with the distance being radiated at hot spot on testee that emitted beam by the second generating laser, the laser spacing that first generating laser and the second generating laser send is L, the light angle that 3rd generating laser and the 4th generating laser send is 2*A, and its angular bisector overlaps with the light sent with the first generating laser or the second generating laser, the angle on the vertical plane that the first generating laser or the second generating laser emit beam and testee surface is B, through telescopical graticule scale or by without editor's distortion photo directly measures: the irradiation spot separation that testee is of a size of H, the first generating laser and the second generating laser is a, the irradiation spot separation of the 3rd generating laser and the second generating laser is b, the irradiation spot separation of the 4th generating laser and the second generating laser is c, described computing method are as follows:
1., when the light beam that the first generating laser or the second generating laser send and testee are basic vertical, the physical size of testee is: L*H/a; 3rd generating laser and the physical size of the second generating laser between the irradiation hot spot of testee are: L*b/a; Second generating laser is F=(L*b/a) * ctgA with the distance being radiated at hot spot on testee that emitted beam by the second generating laser;
2. the light beam sent when the first generating laser or the second generating laser and testee out of plumb, but its vertical plane and testee surface are when having certain included angle B, included angle B can be drawn by c/b=tgA* (cosB+sinB*tg (A+B)) * (sinB+cosB/tgA) formulae discovery; The physical size of testee is: (L*H/a)/cosB;
3rd generating laser and the physical size of the second generating laser between the irradiation hot spot of testee are: (L*b/a)/cosB;
Second generating laser is F=(L*b/a) * (ctgA+tgB) with the distance being radiated at hot spot on testee that emitted beam by the second generating laser.
The invention has the beneficial effects as follows:
(1) can not only measure the distance between measured object and measurement point, the angle of the length of measured object, highly equidimension and testee and direction of measurement can also be measured simultaneously.
(2) have employed the parallel beam of determining spacing and determine that the transmitted beam of emission angle is irradiated testee, demarcated, making measurement result more accurate.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of embodiment one.
Accompanying drawing 2 is the front view of embodiment one.
Accompanying drawing 3 is the structural representation of embodiment two.
Accompanying drawing 4 is the front view of embodiment two.
Accompanying drawing 5 be parallel rays and testee surface vertical case time light path schematic diagram.
Accompanying drawing 6 be parallel rays and testee surface out of plumb time light path schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated.
Embodiment one
As shown in Figure 1 and Figure 2, a kind of optical calibrating telemetering medium, comprises bracing frame 3 and generating laser, and generating laser is installed on bracing frame; The frame of support frame as described above is as cuboid, one end of bracing frame is provided with mounting hole 1, and the bracing frame other end is provided with three erection columns, and three erection columns are in same plane, wherein the first erection column 6 is parallel to each other with mounting hole 1, and the post heart line of the second erection column 7 and the 3rd erection column 5 is fixed angle; The angular bisector of described fixed angle overlaps with the post heart line of the first erection column 6; Described generating laser 8 is four point source emitters, generating laser 8 is corresponding to be respectively installed in described mounting hole and erection column, the light that wherein the first generating laser and the second generating laser send is parallel to each other, the light that 3rd generating laser and the 4th generating laser send is fixed angle, and the light that angular bisector and the first generating laser or second generating laser of described fixed angle send overlaps; The sidewall of erection column or mounting hole is provided with the adjustment hole 4 that can regulate laser transmitter positions, and adjustment hole is two, and an adjustment hole is positioned at the upper end of erection column or mounting hole sidewall, and another adjustment hole is positioned at the lower end of erection column; The frame body of support frame as described above is provided with connecting hole 2 or the link slot of exterior part.
As Fig. 5, shown in Fig. 6, the remote distance-finding method of a kind of optical calibrating, comprise following steps: be irradiated on testee by the light of laser transmitter projects, the line segment direction of the line and required survey that make the 3rd generating laser and the 4th generating laser irradiate hot spot on testee is parallel to each other, observe testee by suitable enlargement factor and with the telescope of graduation and on object, irradiated the hot spot formed by laser again, or take testee with the camera of suitable focal length and irradiated the hot spot formed on the surface by laser, then spot separation is measured by the scale on graticule in telescope, or directly measure without the spot separation on the photo of editor's distortion, the size of testee and the distance between testee and generating laser is calculated again by corresponding computing method, for clearly stating computing method and formula, with reference to accompanying drawing 5, shown in accompanying drawing 6: the second generating laser with emitted beam by the second generating laser that to be radiated at hot spot distance on testee be F, the laser spacing that first generating laser and the second generating laser send is L, the light angle that 3rd generating laser and the 4th generating laser send is 2*A, and its angular bisector overlaps with the light sent with the first generating laser or the second generating laser, the angle on the vertical plane that the first generating laser or the second generating laser emit beam and testee surface is B, through telescopical graticule scale or by without editor's distortion photo directly measures: the irradiation hot spot MN certain distance that testee is of a size of H, the first generating laser and the second generating laser is a, the irradiation hot spot PM certain distance of the 3rd generating laser and the second generating laser is b, the irradiation hot spot QM certain distance of the 4th generating laser and the second generating laser is c, described computing method are as follows:
1., when the light beam that the first generating laser or the second generating laser send and testee are basic vertical, the physical size of testee is: L*H/a; The physical size of the irradiation hot spot PM spacing on the 3rd generating laser and the second testee surface, generating laser place is: L*b/a; Second generating laser is F=(L*b/a) * ctgA with the O1M segment distance being radiated at hot spot on testee that emitted beam by the second generating laser;
2. the light beam sent when the first generating laser or the second generating laser and testee out of plumb, and its vertical plane and testee surface are when having certain included angle B, owing to being approximately projection size from telescopical graticule or the P-M section directly recorded from photo and M-N section size in remote situation, the three-dimensional scenic with depth is also imaged onto in a plane, longitudinal size is compressed to zero, that is to say and from telescope, see that P-M section spot size is equal with P-M1 section size at measurement light source place, M-N section spot size is also equal with M-N1 section size, therefore, M-N1 section size is equal with the ratio of P-M section size with M-N section size with the ratio of P-M1 section size, included angle B can pass through formula:
C/b=tgA* (cosB+sinB*tg (A+B)) * (sinB+cosB/tgA) calculates, and only has B unknown number, can try to achieve result by computer in formula; The physical size of testee is: (L*H/a)/cosB; The physical size of the irradiation hot spot PM section on the 3rd generating laser and the second testee surface, generating laser place is: (L*b/a)/cosB; Second generating laser is radiated at O1M segment distance F=(L*b/a) * (ctgA+tgB) of hot spot on testee with being emitted beam by the second generating laser.
Embodiment two
As shown in Figure 3, Figure 4, support frame as described above is also provided with the 4th erection column 9 and the 5th erection column 10 in one end of three erection columns, the post heart line of the 4th erection column 9 and the 5th erection column 10 be that the angular bisector of angle overlaps with the post heart line of the first erection column 6, the post heart line place plane being perpendicular of the post heart line place plane of the 4th erection column 9 and the 5th erection column 10 and the second erection column and the 3rd erection column; Be installed on the light place plane being perpendicular that light place plane that the 5th generating laser of the 4th erection column and the 5th erection column and the 6th generating laser send sends with the 3rd generating laser and the 4th generating laser respectively, the 5th generating laser and the 6th generating laser emit beam the angular bisector of angularly 2*A2 overlap with the light that the first generating laser or the second generating laser send; The Size calculation mode of its correspondence is identical with the method in embodiment one, only angle A correspondence need be changed to A2, to realize the testee dimensional measurement on vertical direction.
Above, be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an optical calibrating telemetering medium, is characterized in that: comprise bracing frame and generating laser, and generating laser is installed on bracing frame; Described generating laser is point source emitters, described generating laser comprises the first generating laser, the second generating laser, the 3rd generating laser and the 4th generating laser, the light that wherein the first generating laser and the second generating laser send is parallel to each other, the light that 3rd generating laser and the 4th generating laser send is fixed angle, and the light that angular bisector and the first generating laser or second generating laser of described fixed angle send overlaps.
2. a kind of optical calibrating telemetering medium according to claim 1, it is characterized in that: the frame of support frame as described above is as cuboid, one end of bracing frame is provided with mounting hole, the bracing frame other end is provided with three erection columns, the post heart line of three erection columns is in same plane, wherein the post heart line of the first erection column and mounting hole are parallel to each other, and the post heart line of the second erection column and the 3rd erection column is fixed angle; The angular bisector of described fixed angle overlaps with the post heart line of the first erection column.
3. a kind of optical calibrating telemetering medium according to claim 1, it is characterized in that: described bracing frame is also equipped with the 5th generating laser and the 6th generating laser, the light place plane being perpendicular that the light place plane that 5th generating laser and the 6th generating laser send sends with the 3rd generating laser and the 4th generating laser, the 5th generating laser and the 6th generating laser emit beam angular bisector angularly overlap with the light that the first generating laser or the second generating laser send.
4. a kind of optical calibrating telemetering medium according to claim 3, it is characterized in that: support frame as described above is also provided with the 4th erection column and the 5th erection column in one end of three erection columns, the post heart line of the 4th erection column and the 5th erection column be that the angular bisector of angle overlaps with the post heart line of the first erection column, the post heart line place plane being perpendicular of the post heart line place plane of the 4th erection column and the 5th erection column and the second erection column and the 3rd erection column.
5. a kind of optical calibrating telemetering medium according to claim 2,3 or 4, it is characterized in that: on the sidewall of erection column or mounting hole, be provided with the some groups of adjustment holes that can regulate laser transmitter positions, each group adjustment hole is two, an adjustment hole wherein in arbitrary group of adjustment hole is positioned at the upper end of arbitrary erection column or mounting hole sidewall, and another adjustment hole in this group adjustment hole is positioned at the lower end of this erection column or mounting hole sidewall.
6. a kind of optical calibrating telemetering medium according to claim 1,2,3 or 4, is characterized in that: the frame body of support frame as described above is provided with connecting hole or the link slot of exterior part.
7. a kind of optical calibrating telemetering medium according to claim 5, is characterized in that: the frame body of support frame as described above is provided with connecting hole or the link slot of exterior part.
8. an optical calibrating telemeasurement method, it is characterized in that: comprise following steps: the light of laser transmitter projects is irradiated on testee, the line segment direction of the line and required survey that make the 3rd generating laser and the 4th generating laser irradiate hot spot on testee is parallel to each other, observe testee by suitable enlargement factor and with the telescope of graduation and on object, irradiated the hot spot formed by laser again, or take testee with the camera of suitable focal length and irradiated the hot spot formed on the surface by laser, then spot separation is measured by the scale on graticule in telescope, or directly measure without the spot separation on the photo of editor's distortion, the size of testee and the distance between testee and generating laser is calculated again by corresponding computing method, for clearly stating computing method, definition: the second generating laser is F with the distance being radiated at hot spot on testee that emitted beam by the second generating laser, the laser spacing that first generating laser and the second generating laser send is L, the light angle that 3rd generating laser and the 4th generating laser send is 2*A, and its angular bisector overlaps with the light sent with the first generating laser or the second generating laser, the angle on the vertical plane that the first generating laser or the second generating laser emit beam and testee surface is B, through telescopical graticule scale or by without editor's distortion photo directly measures: the irradiation spot separation that testee is of a size of H, the first generating laser and the second generating laser is a, the irradiation spot separation of the 3rd generating laser and the second generating laser is b, the irradiation spot separation of the 4th generating laser and the second generating laser is c, described computing method are as follows:
1., when the light beam that the first generating laser or the second generating laser send and testee are basic vertical, the physical size of testee is: L*H/a; 3rd generating laser and the physical size of the second generating laser between the irradiation hot spot of testee are: L*b/a; Second generating laser is F=(L*b/a) * ctgA with the distance being radiated at hot spot on testee that emitted beam by the second generating laser;
2. the light beam sent when the first generating laser or the second generating laser and testee out of plumb, but its vertical plane and testee surface are when having certain included angle B, included angle B can be drawn by c/b=tgA* (cosB+sinB*tg (A+B)) * (sinB+cosB/tgA) formulae discovery; The physical size of testee is: (L*H/a)/cosB;
3rd generating laser and the physical size of the second generating laser between the irradiation hot spot of testee are: (L*b/a)/cosB; Second generating laser is F=(L*b/a) * (ctgA+tgB) with the distance being radiated at hot spot on testee that emitted beam by the second generating laser.
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| CN201510934912.0A CN105371819A (en) | 2015-12-13 | 2015-12-13 | Optical calibration long-distance measuring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470284A (en) * | 2019-09-24 | 2019-11-19 | 李宏达 | A kind of laser beam emitting device for three-dimensional space position and attitude orientation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470284A (en) * | 2019-09-24 | 2019-11-19 | 李宏达 | A kind of laser beam emitting device for three-dimensional space position and attitude orientation |
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Application publication date: 20160302 |