CN218673912U - Hyperspectral imaging system - Google Patents

Abstract

The utility model discloses a hyperspectral imaging system, which comprises a computer and a dark box, one side of the dark box is provided with a hyperspectral imager, one side of the hyperspectral imager is provided with an optical lens, and the bottom is installed on an electric platform , the electric pan-tilt is fixed in the dark box through a support column, and an illuminating light is arranged above the hyperspectral imager; a stage is arranged on the other opposite side of the dark box, and the stage is It is arranged horizontally and fixed in the dark box through a vertically arranged telescopic mechanism. The utility model can effectively reduce the risk of the hyperspectral imager falling, and weaken the influence of the reflection of the central part of the photographed object.

Description

Hyperspectral Imaging System

technical field

The utility model relates to the field of hyperspectral imaging. More specifically, the utility model relates to a hyperspectral imaging system.

Background technique

Hyperspectral imaging technology (Hyperspectral Image) is an image data technology based on multiple narrow bands. It combines machine vision technology and spectral technology to detect the two-dimensional geometric space and one-dimensional spectral information of the target, and obtain continuous, Narrowband image data. It has the advantages of strong detection ability, high image resolution, multiple bands, and rich spectral information. At present, hyperspectral imaging technology has been successfully applied to the detection of soluble solid content in fruits such as plum (CN109975217A) and kiwi (CN109187378B). However, in the hyperspectral imaging system in the above technology, the hyperspectral imager is suspended above the stage. First, there is a risk of the hyperspectral imager falling, and second, the center of the object to be photographed is easy to reflect light, which affects the hyperspectral imager. Image analysis results.

Utility model content

The purpose of this utility model is to provide a hyperspectral imaging system to solve the above problems.

In order to realize the purpose and other advantages of the present utility model, a hyperspectral imaging system is provided, including a computer and a dark box, one side of the dark box is provided with a hyperspectral imager, and one side of the hyperspectral imager is provided with The optical lens and the bottom are installed on the electric pan-tilt, and the electric pan-tilt is fixed in the dark box through a support column, and an illuminating light is arranged above the hyperspectral imager; the other opposite side in the dark box is arranged There is an object stage, and the object stage is arranged horizontally, and is fixed in the dark box through a vertically arranged telescopic mechanism.

Preferably, in the hyperspectral imaging system, an overturn mechanism is provided on the top surface of the stage, and the overturn mechanism includes two mounting plates, which are respectively arranged on the front and back sides of the stage, and oppositely arranged; the first rotating shaft, which is horizontally arranged between the two mounting plates, and is rotatably connected with one of the mounting plates, and the free end of the first rotating shaft is fixed with a first suction cup; the second rotating shaft, whose It is horizontally arranged between the two mounting plates and coaxial with the first rotating shaft. One end of the second rotating shaft passes through the other mounting plate and is driven to rotate by the driving mechanism. The other end is fixed with a second sucker.

Preferably, in the hyperspectral imaging system, the second shaft includes an inner shaft and an outer shaft, the inner shaft is inserted into the outer shaft, and the side wall of the inner shaft is connected to the inner wall of the outer shaft Spline connection, the bottom of the inner shaft is connected with the inner bottom of the outer shaft through the first elastic member.

Preferably, in the hyperspectral imaging system, the drive mechanism includes: a first gear, which is fixedly sleeved at one end where the second rotating shaft passes through the other mounting plate; a second gear, which is disposed on The outside of the dark box is driven to rotate by the hand lever; the chain connects the first gear and the second gear; wherein, the outside of the dark box is fixed with a dark box, and the dark box is close to one side of the dark box It communicates with the dark box, the front side wall of the dark box is horizontally provided with strip-shaped square holes, the front and rear inner walls of the dark box are fixed with chute plates, two chute plates are arranged horizontally, and are connected with the The strip-shaped square holes are located at the same height, the opposite side walls of the two chute plates are provided with chutes, and the right end of the chute close to the front inner wall of the cassette communicates with the strip-shaped square holes, The left end of any chute is fixed with a second elastic member, and the rear end of the gear shaft of the second gear extends into the chute on the rear inner wall close to the cassette and abuts against the second elastic member The front end passes through the chute on the front inner wall close to the cassette and the bar-shaped square hole to pass through the cassette to connect with the hand rocker, and the front end of the gear shaft of the second gear is also connected to the first The two elastic parts abut against each other.

Preferably, in the hyperspectral imaging system, the right end of the second elastic member is fixed with a connecting ring, and the two ends of the gear shaft of the second gear respectively extend into the connecting ring and connect with the The connecting ring turns to connect.

Preferably, in the hyperspectral imaging system, the top and bottom of the connecting ring are fixed with guide sliders, and the top and bottom surfaces of the chute are provided with slide rails along the length direction thereof, and the guide The slide block is slidingly engaged with the adjacent slide rail.

Preferably, in the hyperspectral imaging system, the telescopic mechanism includes: two telescopic brackets, which are relatively arranged on the front and rear sides of the stage, any telescopic bracket is vertically arranged, and is connected to the The object table is fixedly connected with the dark box; the air cylinder is arranged between two telescopic supports, the air cylinder is vertically arranged, and the cylinder body end of the air cylinder is connected with the dark box, and the output end is connected with the object table connect.

Preferably, in the hyperspectral imaging system, the illuminating lamp is a 150w halogen lamp.

The utility model at least includes the following beneficial effects:

The utility model arranges the hyperspectral imager on one side of the dark box, sets the stage on the other opposite side of the dark box, and is equipped with an optical lens on one side of the hyperspectral imager. A lighting lamp is set above the stage, and a telescopic mechanism is installed at the bottom of the stage, so that the optical lens and the objects on the stage can be adjusted to the same height through the telescopic mechanism, so as to realize the hyperspectral image acquisition of the objects and effectively reduce the hyperspectral The risk of the imager falling down reduces the impact of reflections in the center of the object being photographed.

Other advantages, objectives and features of the utility model will partly be embodied through the following description, and partly will be understood by those skilled in the art through the research and practice of the utility model.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a hyperspectral imaging system according to an embodiment of the present invention;

Fig. 2 is a top view structural schematic diagram of an object stage according to an embodiment of the present invention;

Fig. 3 is a schematic cross-sectional structure diagram of a second rotating shaft according to an embodiment of the present invention;

Fig. 4 is a top structural schematic diagram of a cassette according to an embodiment of the present invention;

Fig. 5 is a front structural schematic diagram of a cassette according to an embodiment of the present invention.

Detailed ways

The utility model will be further described in detail in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

It should be noted that the experimental methods described in the following embodiments, if no special instructions, are conventional methods, and the reagents and materials, if no special instructions, can be obtained from commercial sources; in the description of the utility model , the terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" , "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply the referred devices or components Must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

As shown in Figure 1, the utility model provides a kind of hyperspectral imaging system, comprises computer 1 and dark box 2, and one side in described dark box 2 is provided with hyperspectral imager 3, and one side of described hyperspectral imager 3 An optical lens 4 is provided, and the bottom is mounted on an electric pan/tilt 5, and the electric pan/tilt 5 is fixed in the dark box 2 through a support column 6, and an illuminating lamp 7 is arranged above the hyperspectral imager 3; The other opposite side of the dark box 2 is provided with an object platform 8, which is arranged horizontally and fixed in the dark box 2 by a vertical telescoping mechanism.

In the above embodiments, the hyperspectral imaging system includes a computer and a camera obscura, and the computer and the camera camera are connected through a data line for data extraction and exchange. The dark box is composed of hyperspectral imaging acquisition system, lighting system and liftable stage system. The hyperspectral imaging acquisition system is set on one side of the obscura, including hyperspectral imager, optical lens and electric pan/tilt. One side of the hyperspectral imager is equipped with an optical lens, and the bottom is installed on the electric pan/tilt. The electric pan/tilt passes through The support column is fixed in the dark box, and the hyperspectral imager is controlled by the electric pan/tilt to drive the optical lens to rotate between -5° and 5°, and the spectral image around the object can be obtained. By adjusting the focus of the optical lens, the obtained image can be changed. Image clarity. The lighting system includes lighting lamps, which are suspended directly above the hyperspectral imager, and can adjust the brightness and irradiation angle according to the needs of the items. The liftable stage system is set on the other opposite side of the dark box, including the stage and the telescopic mechanism. The stage is set horizontally, and the telescopic mechanism is vertically set under the stage. Adjust the height of the stage so that the objects on the stage and the optical lens are at the same height to obtain clearer spectral image data.

When in use, place the item to be tested on the stage, adjust the telescopic mechanism so that the item is at the same height as the optical lens, and then start the lighting and hyperspectral imager to collect the spectral image data of the item and send it back to the computer. The computer can also control the rotation of the electric pan/tilt to collect the spectral image data around the object. After the collection is completed, turn off the lighting and hyperspectral imager, and take out the object.

The utility model arranges the hyperspectral imager on one side of the dark box, sets the stage on the other opposite side of the dark box, and is equipped with an optical lens on one side of the hyperspectral imager. A lighting lamp is set above the stage, and a telescopic mechanism is installed at the bottom of the stage, so that the optical lens and the objects on the stage can be adjusted to the same height through the telescopic mechanism, so as to realize the hyperspectral image acquisition of the objects and effectively reduce the hyperspectral The risk of the imager falling down reduces the impact of reflections in the center of the object being photographed.

In another embodiment, as shown in Fig. 1 and Fig. 2, the top surface of the loading table 8 is provided with an overturning mechanism, and the overturning mechanism includes two mounting plates 9, which are respectively arranged on the The front and rear sides of the platform 8 are arranged oppositely; the first rotating shaft 10 is horizontally arranged between the two mounting plates 9, and is connected to one of the mounting plates 9 through bearing rotation, and the first rotating shaft 10 is free The end is fixed with a first suction cup 11; the second rotating shaft 12 is horizontally arranged between the two mounting plates 9 and coaxially arranged with the first rotating shaft 10, and one end of the second rotating shaft 12 passes through The other mounting plate 9 is driven to rotate by the driving mechanism, and the other end is fixed with a second suction cup 13 , and the second rotating shaft 12 is also rotationally connected with the other mounting plate 9 through a bearing. Here, by setting an overturning mechanism on the top surface of the stage, when in use, the two ends of the object to be tested can be fixed between the two mounting plates through the first suction cup and the second suction cup, and the second rotating shaft can be driven by the driving mechanism Rotate to realize the overturning of the object to be tested, and the driving mechanism can be a motor or a hand rocker.

In another embodiment, as shown in FIG. 3 , the second rotating shaft 12 includes an inner shaft 14 and an outer shaft 15, the inner shaft 14 is inserted into the outer shaft 15, and the side wall of the inner shaft 14 It is spline connected with the inner wall of the outer shaft 15, the bottom of the inner shaft 14 is connected with the inner bottom of the outer shaft 15 through the first elastic member 16, and the elastic force direction of the first elastic member 16 is the same as that of the second The axial directions of the two rotating shafts are parallel, and the first elastic member can be a spring or a shrapnel. Here, a preferred structure of the second rotating shaft is listed, so that the second rotating shaft can be stretched without affecting the driving mechanism to drive the second rotating shaft to rotate.

In another embodiment, as shown in FIG. 1 , FIG. 4 , and FIG. 5 , the driving mechanism includes: a first gear 17 , which is fixedly sleeved on the second rotating shaft 12 and passes through the other mounting plate 9 one end; the second gear 18, which is arranged on the outside of the dark box 2, and is driven to rotate by the hand lever 19; the chain 20, which connects the first gear 17 and the second gear 18; wherein, the dark box 2 The outside of the cassette 21 is fixedly provided with a cassette 21, and the side of the cassette 21 close to the cassette 2 communicates with the cassette 2, and the front side wall of the cassette 21 is horizontally provided with a strip-shaped square hole 22. The front and rear inner side walls are fixed with chute plates 23, two chute plates 23 are arranged horizontally, and are positioned at the same height as the strip-shaped square holes 22, on the opposite side walls of the two chute plates 23 A chute 24 is provided, and the right end of the chute 24 close to the front inner wall of the cassette 21 communicates with the strip-shaped square hole 22, and the left end of any chute 24 is fixedly provided with a second elastic member 25, the The elastic force direction of the second elastic member is parallel to the length direction of the chute 24, the second elastic member 25 can be a spring or a shrapnel, and the rear end of the gear shaft of the second gear 18 stretches into the cassette 21 In the chute 24 on the rear inner wall of the inner wall, and abut against the second elastic member 25, the front end passes through the chute 24 and the strip-shaped square hole 22 close to the front inner wall of the cassette 21 to pass through the cassette 21 is connected to the hand rocker 19, and the front end of the gear shaft of the second gear 18 also abuts against the second elastic member 25. Here, a preferred structure of the drive mechanism is listed. By placing the second gear in the cartridge, and placing the gear shaft of the second gear in the chute, and abutting against the second elastic member in the chute, the second The second gear is connected with the first gear through a chain, so that when the height of the first gear changes due to the expansion and contraction of the telescopic mechanism, the second gear can move slightly in the chute to maintain the stability between the first gear and the second gear Connection, by turning the hand rocker, the hand rocker drives the second gear, and the second gear drives the first gear, so that the second rotating shaft can be driven to rotate.

Further, the top and the bottom of the strip-shaped square hole 22 are provided with a limit track along its length, and a telescopic plate 29 is installed in the strip-shaped square hole, and the left and right sides of the telescopic plate 29 are aligned with the The left and right sides of the strip-shaped square hole 22 are fixed, and the upper and lower sides of the expansion plate 29 are slid to be set in the position-limiting track, and then the second rotating shaft is sealed through the expansion plate 29 and passed through the The strip-shaped square hole 22 prevents light from entering the dark box through the strip-shaped square hole, and further improves the imaging quality of the hyperspectral imager.

Further, above and below the strip-shaped square hole 22, a limit groove 30 is respectively arranged, the limit groove is arranged horizontally, the hand rocker is set to include a connecting rod and a positioning rod, and the connecting rod One end is vertically fixedly connected to the gear shaft of the second gear 18, and the other end is provided with a positioning hole, and the positioning rod is movably inserted in the positioning hole, and the positioning rod can be connected with the limiting groove . In the initial state, the positioning rod is inserted into the lower limit slot. When it needs to be turned over, the positioning rod is pulled out from the lower limit slot, and then the connecting rod is rotated 180°, and then the positioning rod is inserted. In the upper limit slot, the 180° flip of the item to be tested can be realized.

In another embodiment, as shown in FIG. 4 , the right end of the second elastic member 25 is fixed with a connecting ring 26 , and the two ends of the gear shaft of the second gear 18 extend into the connecting ring 26 respectively. , and 26 rotatably connected with the connecting ring, so as to avoid that when the gear shaft of the second gear moves in the chute, the second elastic member will escape from the chute under the action of the extrusion force, so that the gear of the second gear The shaft and the second elastic member maintain a stable connection.

In another embodiment, as shown in Figure 4, guide sliders are fixed on the top and bottom of the connecting ring 26, and slide rails are provided on the top and bottom surfaces of the chute 24 along its length direction, The guide slider is slidingly engaged with the adjacent slide rail. Here, the moving direction of the gear shaft of the second gear is limited by setting the guide slider and the slide rail.

In another embodiment, as shown in Figure 1, the telescopic mechanism includes: two telescopic brackets 27, which are relatively arranged on the front and rear sides of the loading table 8, any telescopic bracket 27 is vertically arranged, and It is fixedly connected with the object table 8 and the dark box 21; the cylinder 28 is arranged between two telescopic brackets 27, the cylinder 28 is vertically arranged, and the cylinder end of the cylinder 28 is connected with the dark box 21, the output end is connected to the stage 8, and the cylinder 28 is connected to the computer 1 to control the movement of the cylinder through the computer to drive the telescopic support to move up and down.

In another embodiment, as shown in FIG. 1 , in the hyperspectral imaging system, the illuminating lamp 7 is a 150w halogen lamp.

Although the embodiment of the present utility model has been disclosed as above, it is not limited to the use listed in the description and the implementation, and it can be applied to various fields suitable for the present utility model. For those familiar with the art, Further modifications can be readily effected, so the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (8)

1. The hyperspectral imaging system comprises a computer and a camera bellows and is characterized in that a hyperspectral imager is arranged on one side in the camera bellows, an optical lens is arranged on one side of the hyperspectral imager, the bottom of the hyperspectral imager is installed on an electric holder, the electric holder is fixedly arranged in the camera bellows through a support column, and an illuminating lamp is arranged above the hyperspectral imager; and an object stage is arranged on the other opposite side in the dark box, is horizontally arranged and is fixedly arranged in the dark box through a vertically arranged telescopic mechanism.

2. The hyperspectral imaging system according to claim 1, wherein the top surface of the object stage is provided with a turnover mechanism, the turnover mechanism comprises two mounting plates which are respectively arranged at the front side and the rear side of the object stage and are oppositely arranged; the first rotating shaft is horizontally arranged between the two mounting plates and is in rotating connection with one of the mounting plates, and a first sucking disc is fixedly arranged at the free end of the first rotating shaft; the second pivot, its level is located between two mounting panels, and with the coaxial setting of first pivot, another mounting panel is worn out and is rotated by the actuating mechanism drive to the one end of second pivot, and the other end has set firmly the second sucking disc.

3. The hyperspectral imaging system of claim 2, wherein the second rotating shaft comprises an inner shaft and an outer shaft, the inner shaft is inserted into the outer shaft, the side wall of the inner shaft is in spline connection with the inner wall of the outer shaft, and the bottom of the inner shaft is connected with the inner bottom of the outer shaft through a first elastic element.

4. The hyperspectral imaging system of claim 2, wherein the drive mechanism comprises: the first gear is fixedly sleeved at one end of the second rotating shaft, which penetrates out of the other mounting plate; the second gear is arranged outside the camera bellows and is driven to rotate by the hand lever; a chain connecting the first gear and the second gear; wherein, the dark box is fixedly provided with a dark box outside, one side of the dark box close to the dark box is communicated with the dark box, the front side wall of the dark box is horizontally provided with a strip-shaped square hole, the front inner side wall and the back inner side wall of the dark box are respectively and fixedly provided with a chute board, the two chute boards are horizontally arranged and are positioned at the same height with the strip-shaped square hole, the two opposite side walls of the two chute boards are provided with chutes, and the right end of the chute close to the front inner wall of the dark box is communicated with the strip-shaped square hole, the left end of any spout is equipped with the second elastic component admittedly, the rear end of the gear shaft of second gear stretches into and is close to in the spout on the back inner wall of magazine, and with second elastic component butt, the front end is through being close to spout on the preceding inner wall of magazine with the bar square hole is worn out the magazine with hand pole is connected, just the front end of the gear shaft of second gear also with second elastic component butt.

5. The hyperspectral imaging system according to claim 4, wherein a connecting ring is fixedly arranged at the right end of the second elastic part, and two ends of a gear shaft of the second gear respectively extend into the connecting ring and are rotatably connected with the connecting ring.

6. The hyperspectral imaging system according to claim 5, wherein guide sliding blocks are fixedly arranged at the top and the bottom of the connecting ring, sliding rails are arranged on the top surface and the bottom surface of the sliding chute along the length direction of the sliding chute, and the guide sliding blocks are in sliding clamping connection with the adjacent sliding rails.

7. The hyperspectral imaging system of claim 1, wherein the telescoping mechanism comprises: the two telescopic supports are oppositely arranged on the front side and the rear side of the objective table, and any one of the telescopic supports is vertically arranged and is fixedly connected with the objective table and the camera bellows; the cylinder is arranged between the two telescopic supports and is vertically arranged, the cylinder body end of the cylinder is connected with the camera bellows, and the output end of the cylinder is connected with the objective table.

8. The hyperspectral imaging system of claim 1, wherein the illumination lamp is a 150w halogen lamp.

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