CN103994977B - The device of Non Lambert reflector multi-angle observation BRDF - Google Patents
The device of Non Lambert reflector multi-angle observation BRDF Download PDFInfo
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- CN103994977B CN103994977B CN201410210976.1A CN201410210976A CN103994977B CN 103994977 B CN103994977 B CN 103994977B CN 201410210976 A CN201410210976 A CN 201410210976A CN 103994977 B CN103994977 B CN 103994977B
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Abstract
The present invention relates to the device of a kind of Non Lambert reflector multi-angle observation BRDF.The circular arc of the circular I-rail road of its architectural feature two two halves and camber rocking arm is concentric circles, track there is sliding machine, along on the circular I-rail road of two two halves, four synchronizing wheels are installed bottom sliding machine, and embed in the groove in the circular I-rail road of two two halves respectively, sliding machine is built-in with single-chip microcomputer and wireless remote controller, pitching stepper motor and turbine worm speed reduction unit and orientation stepper motor and turbine worm speed reduction unit, orientation stepper motor is connected with the outer manual adjustment wheel of turbine worm speed reduction unit and dolly, a side outside sliding machine is provided with pitching index dial, camber pitching rocking arm is connected with sliding machine by arc pitch arm Return spring, the other end is equipped with detector fixture.The present invention is that platform built by spectrometer, has played effect for improving Non Lambert reflector BRDF accuracy of observation.
Description
Technical field
The present invention relates to the device of a kind of Non Lambert reflector multi-angle observation BRDF.
Background technology
In current spectrum data gathering in the wild, artificial hand-held is adopted usually only to observe the direction on probe vertical earth's surface, seldom the spectral signature of observation atural object different angles.In fact, uniform dielectric, isotropic lambert's body are Utopian surfaces, and natural surface is mostly Non Lambert reflector.When therefore observing the bidirectional reflect rate distribution function (BRDF-BidirectionalReflectanceDistributionFunction) on Non Lambert reflector surface, must by servicing unit.Based on this, also occur some manually and automatic multi-angle observation platform to carry out subsidiary, but mainly there is following problem in platform:
1) measure consuming time, with 10 ° for interval completes the observation (position angle 0-360 °, zenith angle 0-70 °) of one group of BRDF, need 2 hours, and in observation process, the change due to sun angle makes observed result inaccurate, time efficiency is also difficult to the needs meeting research;
2) angle precision is inadequate, and observation device angle precision is usually more than 5 °, and for accurate Quantitative study, this observation device is difficult to the requirement meeting precision;
3) observation device is difficult to guarantee that spectrum observation can observe same fixed point at every turn from different perspectives, and observation watch is looked like fruit and be there is heterogeneity and then affect observed result.
Summary of the invention
In order to overcome the problems referred to above, the object of the invention is the device providing a kind of Non Lambert reflector multi-angle observation BRDF, utilize it to carry spectrometer as platform, may be used for the BRDF studying Non Lambert reflector, further research angle information role in remote sensing images identification and classification.
The technical solution adopted in the present invention is:
The device of a kind of Non Lambert reflector multi-angle observation BRDF, comprise detector fixture, two halves circular I-rail road, arc pitching rocking arm, pitching stepper motor and turbine worm speed reduction unit, orientation stepper motor and turbine worm speed reduction unit, single-chip microcomputer and wireless remote controller, pitching index dial, azimuth circle, instrument mounting table, manual adjustment wheel, orientation limited block, horizontal semi-circular ring base plate, arc pitch arm Return spring, Timing Belt, sliding machine, pitching rotating shaft, direction rotating shaft, synchronizing wheel, U-type groove bearing.Horizontal semi-circular ring base plate is provided with the circular I-rail road of inside and outside two halves, and the circular arc of the circular I-rail road of two halves and camber pitching rocking arm is concentric circles; Two halves are provided with azimuth circle between circular I-rail road, the end of track is provided with orientation limited block, the center of circle is the center of circle, detecting area, Timing Belt is equipped with in the circular outer arc side, I-rail road of two halves, two semicircular track there is sliding machine, be inserted in synchronizing wheel along four U-type groove bearings are installed in the circular I-rail road of two halves bottom sliding machine, and embed in the groove in the circular I-rail road of inside and outside two halves respectively, with two halves circular outer arc side, I-rail road, Timing Belt is housed and is engaged; Sliding machine is built-in with single-chip microcomputer and wireless remote controller, pitching stepper motor and turbine worm speed reduction unit and orientation stepper motor and turbine worm speed reduction unit, and single-chip microcomputer is connected with storage battery respectively by wire, switch with turbine worm speed reduction unit with turbine worm speed reduction unit and orientation stepper motor with wireless remote controller, pitching stepper motor; Orientation stepper motor is connected by the outer manual adjustment wheel of direction rotating shaft and dolly with turbine worm speed reduction unit, and the side outside sliding machine is provided with pitching index dial, and camber pitching one end is connected with sliding machine by arc pitch arm Return spring.The camber pitching rocking arm other end is equipped with detector fixture, and detector fixture and camber pitching rocking arm are right angle in isocentric circular arc and with the line in the center of circle.
Advantage of the present invention:
1, the circular I-rail road of inside and outside two halves and camber pitching rocking arm adopt concentric circular fashion, when changing observed azimuth and zenith angle, probe all the time with the same fixed point that the center of circle, detecting area is surface to be observed, can avoid the BRDF error because surface heterogeneous medium causes;
2, under orientation stepper motor and turbine worm speed reduction unit Driving technique, angular error can be realized within 1 °, the accurate BRDF quantification demand met;
3, instrument is by robotization platform operations, can measure BRDF fast, avoids because incident angle (sunshine) change and shade block caused error.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention,
Fig. 2 is sliding machine schematic diagram in Fig. 1.
In figure: 1-detector fixture, the circular I-rail road of 2-two halves, 3-arc pitching rocking arm, 4-pitching stepper motor and turbine worm speed reduction unit, 5-orientation stepper motor and turbine worm speed reduction unit, 6-single-chip microcomputer and wireless remote controller, 7-pitching index dial, 8-azimuth circle, 9-instrument mounting table, 10-manual adjustment wheel, 11-horizontal adjustment bracket mounting hole, 12-orientation limited block, 13-horizontal semi-circular ring base plate, the center of circle, 14-detecting area, 15-arc pitch arm Return spring, 16-Timing Belt, 17-sliding machine, 18-pitching rotating shaft, 19-direction rotating shaft, 20-synchronizing wheel, 21-bearing.
Embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is further described again:
As shown in Figure 1-2, the device of a kind of Non Lambert reflector multi-angle observation BRDF, comprise detector fixture 1, the circular I-rail road 2 of two halves, arc pitching rocking arm 3, pitching stepper motor and turbine worm speed reduction unit 4, orientation stepper motor and turbine worm speed reduction unit 5, single-chip microcomputer and wireless remote controller 6, pitching index dial 7, azimuth circle 8, instrument mounting table 9, manual adjustment wheel 10, orientation limited block 12, horizontal semi-circular ring base plate 13, arc pitch arm Return spring 15, Timing Belt 16, sliding machine 17, pitching rotating shaft 18, direction rotating shaft 19, synchronizing wheel 20 and U-type groove bearing 21.Horizontal semi-circular ring base plate 13 is provided with the circular I-rail road 2 of inside and outside two halves, and the circular I-rail road 2 of two halves is concentric circles with the circular arc of camber pitching rocking arm 3; Two halves are provided with azimuth circle 8 between circular I-rail road 2, and the end of track is provided with orientation limited block 12, and the center of circle is the center of circle, detecting area 14, and during measurement, detector fixture points to the fixed point center of circle.Timing Belt 6 is equipped with in the circular outer arc side, I-rail road of two halves, two semicircular I-shaped track 2 there is sliding machine 17, synchronizing wheel 20 is inserted in along four U-type groove bearings 21 are installed in the circular I-rail road 2 of two halves bottom sliding machine 17, and embed in the groove in the circular I-rail road 2 of inside and outside two halves respectively, with two halves circular outer arc side, I-rail road, Timing Belt 16 is housed and is engaged; Sliding machine 17 is built-in with one-chip computer circuit and radio remote control circuit 6, receive telecommand controls pitching stepper motor on sliding machine 17 and turbine worm speed reduction unit 4 and pitching rotating shaft 18 and orientation stepper motor and turbine worm speed reduction unit 5 and direction rotating shaft 19, orientation stepper motor is connected with the outer manual adjustment wheel 10 of turbine worm speed reduction unit 5 and dolly, and single-chip microcomputer is connected with 7A, 12V storage battery respectively by wire, switch with turbine worm speed reduction unit 5 with turbine worm speed reduction unit 4 and orientation stepper motor with wireless remote controller 6, pitching stepper motor; A side outside sliding machine 17 is provided with pitching index dial 7, and camber pitching rocking arm 3 one end is connected with sliding machine 17 by arc pitch arm Return spring 15, and camber pitching rocking arm 3 other end is equipped with detector fixture 1; Detector fixture 1 and camber pitching rocking arm 3 are right angle in isocentric circular arc and with the line in the center of circle.
Screw passes through horizontal adjustment bracket mounting hole 11 by fastening to horizontal semi-circular ring base plate 13 and support.Spectrometer is seated in horizontal semi-circular ring base plate 13 and protrudes on instrument mounting table 9.Support is regulated to reach horizontality.Starting switch, under orientation stepper motor and turbine worm speed reduction unit 5 and direction rotating shaft 19 drive, synchronizing wheel 20 bottom sliding machine 17, runs along the circular I-rail road 2 of inside and outside two halves.Level on the sliding machine 17 and pitching rotating shaft 18 that points to the circular center of circle, I-rail road of two halves is installed in position perpendicular to two halves circular I-rail road inner arc, arc pitch arm be concentric with the circular I-rail road 2 of two halves, arc pitch arm 3 radius is observed range, one end of arc pitch arm connects pitching rotating shaft 18, the other end connects detector fixture 1, the pitching rotating shaft 18 driven by pitching stepper motor and turbine worm speed reduction unit 4 is changed observes luffing angle, arc pitch arm Return spring 15 connects the both sides of sliding machine 17, reduce the bearing load of pitching stepper motor when arc pitch arm 3 operates in low luffing angle, detector fixture 1 is with observing fixed point line and arc pitch arm 3 rotating shaft with observing line of fixing a point perpendicular, ensure that area of observation coverage fixed point circle 14 hearts or shooting fixed point are aimed in detector fixture 1 center.The horizontal slip that sliding machine 17 prolongs the circular I-rail road of two halves can observed bearing Angulation changes from azimuth circle 8, and the swinging of arc pitch arm 3 can be observed luffing angle from pitching index dial 7 and be changed.Rotation manual regulating wheel 10 can make the self-locking of turbine worm speed reduction unit guarantee, and sliding machine and arc pitch arm have locked observation at specified angle, pass through telepilot, one-chip computer circuit and the complete cost apparatus of radio remote control circuit 6 receive telecommand, the control program to orientation stepper motor and pitching stepper motor preset in logical one-chip computer, automatically control sliding machine 17 according to observation angle to slide and the deflection of arc pitch arm along track, thus automatically change orientation angles and the luffing angle of observation, detector in operation in detector fixture 1 can all the time facing to the fixed point that will observe, reach the object measuring BRDF.
Claims (1)
1. the device of a Non Lambert reflector multi-angle observation BRDF, comprise detector fixture (1), the circular I-rail road (2) of two halves, arc pitching rocking arm (3), pitching stepper motor and turbine worm speed reduction unit (4), orientation stepper motor and turbine worm speed reduction unit (5), single-chip microcomputer and wireless remote controller (6), pitching index dial (7), azimuth circle (8), instrument mounting table (9), manual adjustment wheel (10), orientation limited block (12), horizontal semi-circular ring base plate (13), arc pitch arm Return spring (15) and Timing Belt (16), sliding machine (17), pitching rotating shaft (18), direction rotating shaft (19), synchronizing wheel (20), U-type groove bearing (21), in it is characterized in that being provided with on horizontal semi-circular ring base plate (13), the circular I-rail road (2) of outer two halves, the circular I-rail road (2) of two halves is concentric circles with the circular arc of camber pitching rocking arm (3), azimuth circle (8) is provided with between the circular I-rail road (2) of two halves, the end of track is provided with orientation limited block (12), the center of circle is the center of circle, detecting area (14), Timing Belt (16) is equipped with in circular I-rail road (2) the outer arc side of two halves, the circular I-rail road (2) of two halves there is sliding machine (17), synchronizing wheel (20) is inserted in along upper installation four the U-type groove bearings (21) of the circular I-rail road (2) of two halves in sliding machine (17) bottom, and in embedding respectively, in the groove of the circular I-rail road (2) of outer two halves, the Timing Belt (16) be equipped with the circular outer arc side, I-rail road of two halves is engaged, sliding machine (17) is built-in with single-chip microcomputer and wireless remote controller (6), pitching stepper motor and turbine worm speed reduction unit (4) and orientation stepper motor and turbine worm speed reduction unit (5), and single-chip microcomputer is connected with storage battery respectively by wire, switch with turbine worm speed reduction unit (5) with turbine worm speed reduction unit (4) and orientation stepper motor with wireless remote controller (6), pitching stepper motor, orientation stepper motor is connected with sliding machine (17) outer manual adjustment wheel (10) by direction rotating shaft (19) with turbine worm speed reduction unit (5), sliding machine (17) side is outward provided with pitching index dial (7), camber pitching rocking arm (3) one end is connected with sliding machine (17) by arc pitch arm Return spring (15), and camber pitching rocking arm (3) other end is equipped with detector fixture (1), detector fixture (1) and camber pitching rocking arm (3) are right angle in isocentric circular arc and with the line in the center of circle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210976.1A CN103994977B (en) | 2014-05-20 | 2014-05-20 | The device of Non Lambert reflector multi-angle observation BRDF |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410210976.1A CN103994977B (en) | 2014-05-20 | 2014-05-20 | The device of Non Lambert reflector multi-angle observation BRDF |
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| CN103994977A CN103994977A (en) | 2014-08-20 |
| CN103994977B true CN103994977B (en) | 2016-04-20 |
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| CN107589078A (en) * | 2017-09-04 | 2018-01-16 | 铜陵恒合光电科技有限公司 | A kind of field ground feature spectrometer that can measure BRDF spatial distributions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323240A (en) * | 2011-07-25 | 2012-01-18 | 中国科学院安徽光学精密机械研究所 | Indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device |
| CN102590150A (en) * | 2012-03-01 | 2012-07-18 | 浙江大学 | Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system |
| CN203981572U (en) * | 2014-05-20 | 2014-12-03 | 中国科学院寒区旱区环境与工程研究所 | Automatic multi-angle observation device based on track |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7630419B2 (en) * | 2007-01-10 | 2009-12-08 | Seiko Epson Corporation | Laser light source device, and image device using the same |
| US9098945B2 (en) * | 2009-05-01 | 2015-08-04 | Microsoft Technology Licensing, Llc | Modeling anisotropic surface reflectance with microfacet synthesis |
| KR20120004227A (en) * | 2010-07-06 | 2012-01-12 | 삼성전자주식회사 | Image processing apparatus and method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323240A (en) * | 2011-07-25 | 2012-01-18 | 中国科学院安徽光学精密机械研究所 | Indoor full-automatic BRDF (bidirectional reflectance distribution function) measurement device |
| CN102590150A (en) * | 2012-03-01 | 2012-07-18 | 浙江大学 | Indoor hyperspectral bidirectional reflectance distribution function (BRDF) determining system |
| CN203981572U (en) * | 2014-05-20 | 2014-12-03 | 中国科学院寒区旱区环境与工程研究所 | Automatic multi-angle observation device based on track |
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