CN103033264A - Multi-angle observing system of aquatic vegetation canopy spectra - Google Patents

Multi-angle observing system of aquatic vegetation canopy spectra Download PDF

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Publication number
CN103033264A
CN103033264A CN2012105369278A CN201210536927A CN103033264A CN 103033264 A CN103033264 A CN 103033264A CN 2012105369278 A CN2012105369278 A CN 2012105369278A CN 201210536927 A CN201210536927 A CN 201210536927A CN 103033264 A CN103033264 A CN 103033264A
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CN
China
Prior art keywords
track
fibre
optical probe
trolley
adjusting gear
Prior art date
Application number
CN2012105369278A
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Chinese (zh)
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CN103033264B (en
Inventor
徐俊锋
胡谭高
王洁
谢斌
刘丽娟
吴文渊
张登荣
姚荣庆
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杭州师范大学
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Priority to CN201210536927.8A priority Critical patent/CN103033264B/en
Publication of CN103033264A publication Critical patent/CN103033264A/en
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Publication of CN103033264B publication Critical patent/CN103033264B/en

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Abstract

Provided is a multi-angle observing system of aquatic vegetation canopy spectra. A servo motor is installed on a horizontal cross beam of a support frame, wherein an output shaft of the servo motor is arranged along the vertical direction, the output shaft of the servo motor is connected with a rigid semicircular track with an downward opening through an azimuth shaft and a track frame, and the track frame is connected with the midpoint of the track in a hinged mode; an observing hole which penetrates axially is formed in the track, a rack is installed on the outer wall of the track, and a fiber-optics probe trolley and a balance trolley are symmetrically distributed at two sides of the central line of the track to keep balance of the track; when the fiber-optics probe trolley operates to the position where a fiber-optics probe is aligned to the observing hole, and signals of aquatic plants are obtained; and the servo motor, the fiber-optics probe trolley, the balance trolley, a hall locating sensor, and a sensing piece are all connected with a central controller.

Description

The multi-angle observation system of aquatic vegetation canopy spectra
Technical field
The invention belongs to the observation instrument of hydrophyte canopy spectra.
Background technology
Hydrophyte refers to for a long time plant of normal growth in water or in the water saturation soil, such as reed, paddy rice, mangrove, water shield, water lily etc.In order to grasp the growing state of hydrophyte, such as output of paddy rice etc., need to observe it.
Because wetland is covered by water body throughout the year or periodically, the received radiation of remote sensor comprises reflected light above water surface, suspension reflected light, underwater reflection light and sky reflected light (referring to Fig. 3).Therefore owing to the impact of water body background (water body, suspension, substrate), aquatic vegetation classification, inversion accuracy reduce, thereby have reduced the precision of observation.
The multi-angle observation of terrain object might be avoided the difficulty of " foreign matter is with spectrum, the different spectrum of jljl " that traditional remote sensing faces, thereby has improved the precision of terrain object identification.Therefore set up the remote sensing model of aquatic vegetation, the multi-angle observation data are bases, and the multi-angle observation system is prerequisite.The realization of this type of recording geometry helps aquatic vegetation canopy two to the observation of reflection and the foundation of model, helps to improve classification or the inversion accuracy of wetland aquatic vegetation.
Present existing recording geometry for vegetation, for example, the FIGOS of multi-angle observation system of University of Zurich, but its shortcoming be the direct horizontal positioned of orientation track on the ground, be not suitable for aquatic vegetation.Multi-angle observation system for aquatic vegetation is also rarely found, and Britain earth observation checking group (NCAVEO) has adopted the multi-angle observation system to observe savanna in the Niger, is difficult to accurately control but its shortcoming is observation angle.
Summary of the invention
The present invention will overcome that existing hydrophyte optical viewer viewing angle is limited, low precision, baroque shortcoming, and a kind of multi-angle observation system that precision is high, simple in structure, cost is low that has is provided.
The multi-angle observation system of aquatic vegetation canopy spectra, comprise liftable bracing frame, it is characterized in that being provided with the servomotor that output shaft is vertically arranged on the horizontal gird of described bracing frame, the output shaft of described servomotor connects the rigidity semicircular track that Open Side Down by azimuth axis, rail bracket, and is point articulated in described rail bracket and the track; Be distributed with the viewport that radially connects on the described track, on the outer wall of described track tooth bar is installed, fibre-optical probe dolly and balancing trolley are symmetrically distributed in the middle separated time both sides of described track to keep described track balance, the Hall orientation sensor is housed on the described track, and fibre-optical probe dolly and balancing trolley are equipped with the sensing chip that interacts with described Hall orientation sensor; When described fibre-optical probe trolley travelling during with position that viewport is aimed at, obtains the signal of hydrophyte to fibre-optical probe; Described servomotor, fibre-optical probe dolly and balancing trolley, Hall orientation sensor, the equal signal of sensing chip are connected in a central controller.
Further, described bracing frame comprises the supported on both sides seat, stretches into height regulating rod from the top of supporting seat, and the hypomere of height regulating rod is equipped with the height adjusting gear rack; Also be provided with the height adjusting gear on the supporting seat, height adjusting gear and the engagement of height adjusting gear rack; Connecting cross beam between the upper end of both sides height regulating rod, the crossbeam described azimuth axis that is rotatably assorted.
Further, described crossbeam and height regulating rod are hinged.
Further again, middle part and the azimuth axis of described crossbeam are rotationally connected by thrust bearing, and the upper end of azimuth axis is by the output shaft interlock of speed reduction unit and described motor.
Further, adopt free bearing with bearing between described rail bracket and the track.
Multi-angle observation of the present invention system has that precision is high, simple in structure, low cost and other advantages, has solved the observation problem of the contour canopy hydrophyte of reed.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the received radiation regimes figure of remote sensor in the prior art.
In the diagram, 1-supporting seat, 2-height adjusting gear, 3-height adjusting gear rack, 4-height regulating rod, 5-bearing pin, the 6-crossbeam, 7-thrust bearing, 8-servomotor, the 9-speed reduction unit, 10-fibre-optical probe dolly, 11-flexible rack, the 12-rail bracket, 13-semi-circular track, 14-balancing trolley, the 15-azimuth axis, 16-axle, 17-bearing.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is elaborated.
With reference to accompanying drawing:
The multi-angle observation system of aquatic vegetation canopy spectra, comprise liftable bracing frame, it is characterized in that being provided with the servomotor 8 that output shaft is vertically arranged on the horizontal gird 6 of described bracing frame, the output shaft of described servomotor 8 connects the rigidity semicircular track that Open Side Down 13 by azimuth axis, rail bracket, and is point articulated in described rail bracket and the track 13; Be distributed with the viewport that radially connects on the described track 13, tooth bar 11 is installed on the outer wall of described track, fibre-optical probe dolly 10 and balancing trolley 14 are symmetrically distributed in the middle separated time both sides of described track 13 to keep described track 13 balances, 13 are equipped with the Hall orientation sensor on the described track, and fibre-optical probe dolly 10 and balancing trolley 14 are equipped with the sensing chip that interacts with described Hall orientation sensor; When described fibre-optical probe dolly 10 runs to fibre-optical probe with position that viewport is aimed at, obtain the signal of hydrophyte; Described servomotor 8, fibre-optical probe dolly 10 and balancing trolley 14, Hall orientation sensor, the equal signal of sensing chip are connected in a central controller.
Described bracing frame comprises the supported on both sides seat, stretches into height regulating rod from the top of supporting seat, and the hypomere of height regulating rod is equipped with the height adjusting gear rack; Also be provided with the height adjusting gear on the supporting seat, height adjusting gear and the engagement of height adjusting gear rack; Connecting cross beam between the upper end of both sides height regulating rod, the crossbeam described azimuth axis that is rotatably assorted.
Described crossbeam and height regulating rod are hinged.Middle part and the azimuth axis of described crossbeam are rotationally connected by thrust bearing, and the upper end of azimuth axis is by the output shaft interlock of speed reduction unit and described motor.Adopt the free bearing with bearing between described rail bracket and the track.Referring to Fig. 1,2, supported on both sides seat 1 is symmetry shape, all is installed on the concrete stake, stretches into height regulating rod 4 from the top of supporting seat 1, and the hypomere of height regulating rod 4 is equipped with height adjusting gear rack 3.Also be provided with height adjusting gear 2 on the supporting seat 1, height adjusting gear 2 and 3 engagements of height adjusting gear rack.Height adjusting gear 2 can adopt stepper motor or manually drive, and then drives the height adjusting gear rack 3 that is installed on the height regulating rod 4, and two height regulating rods 4 move up or down synchronously about making.
Connecting cross beam 6 between the upper end of both sides height regulating rod 4, and crossbeam 6 is connected by bearing pin 5 with height regulating rod 4.
The middle part of crossbeam 6 and azimuth axis 15 are rotationally connected by thrust bearing 7, and the upper end of azimuth axis 15 is by the output shaft interlock of speed reduction unit 9 with servomotor 8, and namely azimuth axis 15 is driven by servomotor 8 and speed reduction unit 9 and realizes that 360 ° of accurate calibration rotate.Speed reduction unit 9 is installed on the crossbeam 6, and servomotor 8 is installed on the speed reduction unit 9.
The lower end of azimuth axis 15 is fixedly connected with rail bracket 12, rail bracket 12 is inserted the middle part of semi-circular track 13, semi-circular track 13 down, and the both sides of rail bracket 12 respectively penetrate axle 16 from the outside, semi-circular track 13 is stretched in the inner of axle 16, between the two by bearing 17 assembling, hinged thereby rail bracket 12 has just been realized by axle 16 and bearing 17 and semi-circular track 13, make semi-circular track 13 be in all the time the equilibrium position.Flexible rack 11 is installed on the outer wall of semi-circular track 13, the separated time both sides respectively are equipped with fibre-optical probe dolly 10, balancing trolley 14 in the track, fibre-optical probe dolly 10 and balancing trolley 14 are in the both sides of semi-circular track 13, fibre-optical probe dolly 10 and balancing trolley 14 can move along flexible rack 11 by wireless remote control control, make semi-circular track 13 be in all the time the equilibrium position.Fibre-optical probe dolly 10, balancing trolley 14 all adopt prior art to realize along structure and the control mode that flexible rack 11 moves herein.On the fibre-optical probe dolly 10 fibre-optical probe is installed.
Semi-circular track 13 has several viewports, several viewports are pressed angle bisecting and are arranged, 10 fibre-optical probe is suitable on these viewports and the fibre-optical probe dolly, namely when fibre-optical probe dolly 10 moves to correct position, on it with fibre-optical probe just see through corresponding viewport on the semi-circular track 13 and obtain the signal of hydrophyte.
Semi-circular track 13 is the upper Hall orientation sensor of installing also, corresponding, on the fibre-optical probe dolly 10 sensing chip is installed, movement angle according to predefined fibre-optical probe dolly 10, such as 5 °, 10 ° etc., fibre-optical probe dolly 10 moved after the corresponding angle, under the interaction of Hall orientation sensor and sensing chip, accurately stopped and being positioned the somewhere of semi-circular track 13.Movable body is except optical fiber, and without other cables, the motion of fibre-optical probe dolly and balancing trolley flexibly, freely, and is unrestricted.
Those of ordinary skill in the art will be appreciated that; above embodiment illustrates the present invention; and be not as limitation of the invention, as long as within the scope of the invention, all will drop on protection scope of the present invention to variation, the distortion of above embodiment.

Claims (5)

1. the multi-angle observation system of aquatic vegetation canopy spectra, comprise liftable bracing frame, it is characterized in that being provided with the servomotor that output shaft is vertically arranged on the horizontal gird of described bracing frame, the output shaft of described servomotor connects the rigidity semicircular track that Open Side Down by azimuth axis, rail bracket, and is point articulated in described rail bracket and the track; Be distributed with the viewport that radially connects on the described track, on the outer wall of described track tooth bar is installed, fibre-optical probe dolly and balancing trolley are symmetrically distributed in the middle separated time both sides of described track to keep described track balance, the Hall orientation sensor is housed on the described track, and fibre-optical probe dolly and balancing trolley are equipped with the sensing chip that interacts with described Hall orientation sensor; When described fibre-optical probe trolley travelling during with position that viewport is aimed at, obtains the signal of hydrophyte to fibre-optical probe; Described servomotor, fibre-optical probe dolly and balancing trolley, Hall orientation sensor, sensing chip all are connected in a central controller.
2. the system as claimed in claim 1, it is characterized in that: described bracing frame comprises the supported on both sides seat, stretches into height regulating rod from the top of supporting seat, the hypomere of height regulating rod is equipped with the height adjusting gear rack; Also be provided with the height adjusting gear on the supporting seat, height adjusting gear and the engagement of height adjusting gear rack; Connecting cross beam between the upper end of both sides height regulating rod, the crossbeam described azimuth axis that is rotatably assorted.
3. multi-angle observation as claimed in claim 2 system, it is characterized in that: described crossbeam and height regulating rod are hinged.
4. system as claimed in claim 2 or claim 3, it is characterized in that: middle part and the azimuth axis of described crossbeam are rotationally connected by thrust bearing, and the upper end of azimuth axis is by the output shaft interlock of speed reduction unit and described motor.
5. system as claimed in claim 4 is characterized in that: adopt the free bearing with bearing between described rail bracket and the track.
CN201210536927.8A 2012-12-11 2012-12-11 Multi-angle observing system of aquatic vegetation canopy spectra CN103033264B (en)

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CN103033264B CN103033264B (en) 2014-11-05

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103344332A (en) * 2013-06-18 2013-10-09 杭州师范大学 Hanging type multi-angle observation device
CN104089899A (en) * 2014-03-31 2014-10-08 浙江工商大学 Device and method for detecting snowflake beef
CN104374717A (en) * 2014-08-18 2015-02-25 浙江工商大学 Snow beef detection system and method
CN104457815A (en) * 2014-12-12 2015-03-25 江苏师范大学 Portable manual all-dimensional multi-angle observation scaffold

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87215250U (en) * 1987-12-28 1988-11-16 刘星达 Angle measuring instrument for bent pipe
JPH09138163A (en) * 1995-11-14 1997-05-27 Nkk Corp Method and apparatus for measuring emissivity of object and rod-like radiation source
US6294785B1 (en) * 1999-09-08 2001-09-25 G & A Technical Software Inc. Infrared sensor response calibration using atmospheric limb emission measurements
CN102374897A (en) * 2010-08-07 2012-03-14 俞建峰 Device for detecting luminous flux of two-axis motion type lamp
CN202994292U (en) * 2012-12-11 2013-06-12 杭州师范大学 Multi-angle observation system of aquatic vegetation canopy spectrum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87215250U (en) * 1987-12-28 1988-11-16 刘星达 Angle measuring instrument for bent pipe
JPH09138163A (en) * 1995-11-14 1997-05-27 Nkk Corp Method and apparatus for measuring emissivity of object and rod-like radiation source
US6294785B1 (en) * 1999-09-08 2001-09-25 G & A Technical Software Inc. Infrared sensor response calibration using atmospheric limb emission measurements
CN102374897A (en) * 2010-08-07 2012-03-14 俞建峰 Device for detecting luminous flux of two-axis motion type lamp
CN202994292U (en) * 2012-12-11 2013-06-12 杭州师范大学 Multi-angle observation system of aquatic vegetation canopy spectrum

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103344332A (en) * 2013-06-18 2013-10-09 杭州师范大学 Hanging type multi-angle observation device
CN103344332B (en) * 2013-06-18 2015-02-04 杭州师范大学 Hanging type multi-angle observation device
CN104089899A (en) * 2014-03-31 2014-10-08 浙江工商大学 Device and method for detecting snowflake beef
CN104374717A (en) * 2014-08-18 2015-02-25 浙江工商大学 Snow beef detection system and method
CN104457815A (en) * 2014-12-12 2015-03-25 江苏师范大学 Portable manual all-dimensional multi-angle observation scaffold

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