Image acquisition device for detecting fluorescence characteristics of plant epidermis

Abstract

The invention discloses an image acquisition device for detecting fluorescence characteristics of plant epidermis. The image acquisition device comprises an image acquisition module for shooting a plant epidermis fluorescence image and a light supplementing mechanism for providing illumination for shooting work, the image acquisition module comprises an industrial camera, and the industrial camera is connected with the background control system; the light supplementing mechanism comprises at least one group of light sources and a rotation driving mechanism used for driving the light sources to rotate, each group of light sources comprises at least two light sources and emits light of different wave bands, and the light sources of the same group are uniformly distributed on a vertical plane in the circumferential direction; the rotation driving mechanism is used for driving the light source to rotate in the circumferential direction. The image acquisition device not only can automatically switch the light sources of different wave bands on line, but also can automatically adjust the angles of the light sources, is convenient and fast, and has relatively high precision.

Description

Technical Field

[0001] The invention relates to an image acquisition device, and in particular to an image acquisition device for detecting the fluorescence characteristics of plant epidermis. Background Art

[0002] In the imaging system, it is very important to determine the relative distance and angle between light sources, between light sources and imaging lenses, between imaging lenses and samples, and between light sources and samples. On the one hand, the appropriate distance and angle between optical components are conducive to ensuring the quality of imaging, and the angle adjustment of the light source will directly affect the uniformity of illumination; on the other hand, when collecting images of different batches of samples, the distance and angle between the optical components in the system will directly affect the stability of the image data set. Therefore, it is very important to build a standardized and stable movement and rotation mechanism to ensure the stability of the image data set.

[0003] Taking scientific research experiments as an example, the light source for detecting the fluorescence characteristics of plant epidermis requires detection data of multiple bands of light sources during the experiment. When it is necessary to replace the light source of different bands, the fixed light source must be removed and reinstalled, and the operation must be repeated each time. At the same time, when the angle of the fixed light source needs to be adjusted, the fixed angle needs to be measured manually. This usage process is not only cumbersome to operate, but also affects work efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems and provide an image acquisition device for detecting the fluorescence characteristics of plant epidermis. The image acquisition device can not only automatically switch light sources of different bands online, but also automatically adjust the angle of the light source. It is convenient and fast and has high precision.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] An image acquisition device for detecting the fluorescence characteristics of plant epidermis, comprising an image acquisition module for taking a fluorescence image of the plant epidermis and a fill light mechanism for providing illumination for the shooting work;

[0007] The image acquisition module includes an industrial camera, which is connected to a background control system;

[0008] The fill light mechanism includes a light source and a rotation drive mechanism for driving the light source to rotate. The light source is provided with at least one group, each group of light sources is provided with at least two light sources that emit light of different wavelengths respectively, and the light sources of the same group are evenly distributed along the circumferential direction on a vertical plane; the rotation drive mechanism is used to drive the light source to rotate along the circumferential direction.

[0009] In a preferred embodiment of the present invention, the industrial camera is arranged on a vertical adjustment mechanism, which includes a vertical guide rod, a vertical movable mounting frame, and a vertical driving mechanism for driving the vertical movable mounting frame to move on the vertical guide rod.

[0010] Furthermore, the vertical guide rods are provided with two and are vertically and parallelly arranged in the chassis, the vertical movable mounting frame is slidably connected between the two vertical guide rods; the industrial camera is arranged on the vertical movable mounting frame.

[0011] Furthermore, the vertical driving mechanism is composed of a manual adjustment mechanism, and the details may refer to the prior art.

[0012] In a preferred embodiment of the present invention, the light sources are provided in two groups and are arranged horizontally.

[0013] A preferred embodiment of the present invention, wherein the rotary drive mechanism includes a rotary drive motor and a transmission shaft, the output shaft of the rotary drive motor and the transmission shaft are coaxially fixedly connected, the axis of the transmission shaft passes through the center of a circle formed by the arrangement of the light sources, and the transmission shaft is connected to the light source via a fixed structure.

[0014] In a preferred embodiment of the present invention, the fill light mechanism further comprises a transverse driving mechanism for driving the light source to move transversely; the transverse driving mechanism comprises a transverse driving motor, a transverse moving frame and a transverse transmission assembly, wherein the transverse driving motor is arranged on the fill light frame; the rotary driving mechanism is arranged on the transverse moving frame; the transverse transmission assembly comprises a transverse screw and a transverse screw nut, wherein the axis of the transverse screw is perpendicular to the axis of the transmission shaft, and the transverse screw nut is fixedly connected to the fill light frame. Through the above structure, the light source can move transversely under the drive of the transverse driving motor, thereby adjusting its own position to meet different needs.

[0015] Furthermore, the lateral moving frame and the lateral screw nut are each provided with two, the rotation drive mechanism is provided with two groups and is respectively arranged on the two lateral moving frames; the lateral screw is a positive and negative thread screw, and the two lateral screw nuts are respectively matched at the two ends of the lateral screw. In this way, the two groups of light sources can be driven to move horizontally at the same time to adjust the distance between the two groups of light sources.

[0016] Furthermore, the transverse drive mechanisms are provided in two groups and are arranged horizontally, and the horizontal arrangement direction of the two groups of transverse drive mechanisms is parallel to the axis of the transmission shaft; the transmission shaft spans between the two groups of transverse drive mechanisms.

[0017] Furthermore, the fill light frame is provided with a transverse guide rod, and the transverse movable frame is slidably arranged on the transverse guide rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The image acquisition device of the present invention can not only automatically switch light sources of different wavebands online, but also automatically adjust the angle of the light source, which is convenient, fast and has high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front view of an image acquisition device for detecting the fluorescence characteristics of plant epidermis.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of an image acquisition device for detecting the fluorescence characteristics of plant epidermis, in which the chassis is hidden. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0023] See also Figure 1-2 The image acquisition device for detecting the fluorescence characteristics of plant epidermis in this embodiment includes an image acquisition module for taking fluorescence images of plant epidermis and a fill light mechanism for providing illumination for the shooting work; the image acquisition module includes an industrial camera 1, which is connected to the background control system.

[0024] See also Figure 1-2 The industrial camera 1 is arranged on a vertical adjustment mechanism, which includes a vertical guide rod 2, a vertical movable mounting frame 3 and a vertical driving mechanism for driving the vertical movable mounting frame 3 to move on the vertical guide rod 2.

[0025] Furthermore, two vertical guide rods 2 are provided and are vertically and parallelly arranged in the chassis 4 , and the vertical movable mounting frame 3 is slidably connected between the two vertical guide rods 2 ; the industrial camera 1 is arranged on the vertical movable mounting frame 3 .

[0026] Furthermore, the vertical driving mechanism is composed of a manual adjustment mechanism, and the details may refer to the prior art.

[0027] See also Figure 1-2 The fill light mechanism includes a light source 5, a rotation driving mechanism for driving the light source 5 to rotate, and a lateral driving mechanism for driving the light source 5 to move horizontally; the light sources 5 are provided in two groups and arranged horizontally, and each group of light sources 5 is provided with at least two light sources that emit light of different wavelengths; the light sources 5 of the same group are evenly distributed along the circumferential direction on the vertical plane; the rotation driving mechanism is used to drive the light source 5 to rotate along the circumferential direction.

[0028] See also Figure 1-2The rotary drive mechanism includes a rotary drive motor 6 and a transmission shaft 7. The output shaft of the rotary drive motor 6 (adopting an ST3020 Servo bus servo) is coaxially fixedly connected with the transmission shaft 7. The axis of the transmission shaft 7 passes through the center of a circle formed by the arrangement of the light sources 5. The transmission shaft 7 is connected to the light source 5 through a fixed structure.

[0029] See also Figure 1-2 The lateral drive mechanism includes a lateral drive motor (using a 42 stepper motor, not shown in the figure), a lateral moving frame 8 and a lateral transmission assembly (not shown in the figure), wherein the lateral drive motor is arranged on the fill light frame 9; the rotation drive mechanism is arranged on the lateral moving frame 8; the lateral transmission assembly includes a lateral screw rod and a lateral screw rod nut, wherein the axis of the lateral screw rod is perpendicular to the axis of the transmission shaft 7, and the lateral screw rod nut is fixedly connected to the fill light frame 9. Through the above structure, under the drive of the lateral drive motor, the light source 5 can move horizontally, thereby adjusting its own position to meet different needs.

[0030] Furthermore, the lateral moving frame 8 and the lateral screw nut are each provided with two, and the rotation drive mechanism is provided with two groups and is respectively arranged on the two lateral moving frames 8; the lateral screw is a positive and negative thread screw, and the two lateral screw nuts are respectively matched at the two ends of the lateral screw. In this way, the two groups of light sources 5 can be driven to move horizontally at the same time, and the distance between the two groups of light sources 5 can be adjusted.

[0031] Furthermore, the transverse drive mechanisms are provided in two groups and are arranged horizontally, and the horizontal arrangement direction of the two groups of transverse drive mechanisms is parallel to the axis of the transmission shaft 7; the transmission shaft 7 spans between the two groups of transverse drive mechanisms.

[0032] Furthermore, a transverse guide rod 10 is provided on the fill light frame 9 , and the transverse movable frame 8 is slidably disposed on the transverse guide rod 10 .

[0033] See also Figure 1-2 The working principle of the image acquisition device for detecting the fluorescence characteristics of plant epidermis in this embodiment is as follows:

[0034] During operation, before the industrial camera 1 takes pictures, if it is necessary to use a light source 5 of a different band, the light source 5 is driven to rotate by the rotary drive mechanism, and the light source 5 of the corresponding band is rotated to a specified position to realize automatic switching of light sources 5 of different bands; if it is necessary to adjust the angle of the light source 5, the light source 5 is driven to rotate by the rotary drive mechanism so that the angle between the light source 5 and the horizontal plane meets the requirements.

[0035] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An image acquisition device for detecting the fluorescence characteristics of plant epidermis, comprising an image acquisition module for taking a fluorescence image of the plant epidermis and a fill light mechanism for providing illumination for the shooting work; characterized in that: The image acquisition module includes an industrial camera, which is connected to a background control system; The fill light mechanism includes a light source and a rotation drive mechanism for driving the light source to rotate. The light source is provided with at least one group, each group of light sources is provided with at least two light sources that emit light of different wavelengths respectively, and the light sources of the same group are evenly distributed along the circumferential direction on a vertical plane; the rotation drive mechanism is used to drive the light source to rotate along the circumferential direction.

2. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 1, characterized in that: The industrial camera is arranged on a vertical adjustment mechanism, which comprises a vertical guide rod, a vertical movable mounting frame and a vertical driving mechanism for driving the vertical movable mounting frame to move on the vertical guide rod.

3. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 2, characterized in that: The vertical guide rods are provided with two and are vertically arranged in parallel in the chassis; the vertical movable mounting frame is slidably connected between the two vertical guide rods; and the industrial camera is arranged on the vertical movable mounting frame.

4. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 1, characterized in that: The light sources are provided in two groups and are arranged horizontally.

5. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 1, characterized in that: The rotary drive mechanism comprises a rotary drive motor and a transmission shaft. The output shaft of the rotary drive motor and the transmission shaft are coaxially fixedly connected. The axis of the transmission shaft passes through the center of a circle formed by the arrangement of light sources. The transmission shaft is connected to the light source via a fixed structure.

6. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 5, characterized in that: The fill light mechanism also includes a transverse driving mechanism for driving the light source to move laterally; the transverse driving mechanism includes a transverse driving motor, a transverse moving frame and a transverse transmission assembly, and the transverse driving motor is arranged on the fill light frame; the rotation driving mechanism is arranged on the transverse moving frame; the transverse transmission assembly includes a transverse screw and a transverse screw nut, the axis of the transverse screw is perpendicular to the axis of the transmission shaft, and the transverse screw nut is fixedly connected to the fill light frame.

7. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 6, characterized in that: The transverse moving frames and transverse screw nuts are each provided with two, and the rotation drive mechanism is provided with two groups and is respectively arranged on the two transverse moving frames; the transverse screw is a positive and negative thread screw, and the two transverse screw nuts are respectively matched at the two ends of the transverse screw.

8. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 6, characterized in that: The transverse drive mechanisms are provided with two groups and are arranged horizontally, and the horizontal arrangement direction of the two groups of transverse drive mechanisms is parallel to the axis of the transmission shaft; the transmission shaft spans between the two groups of transverse drive mechanisms.

9. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 6, characterized in that: The fill light frame is provided with a transverse guide rod, and the transverse movable frame is slidably arranged on the transverse guide rod.

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