An image acquisition device for detecting fluorescence characteristics of plant epidermis

Abstract

The present invention discloses an image acquisition device for detecting the fluorescence characteristics of plant epidermis, comprising an image acquisition module for capturing epidermal fluorescence images and a fill-light mechanism for providing illumination for the capture process. The image acquisition module comprises an industrial camera connected to a background control system. The fill-light mechanism comprises a light source and a rotary drive mechanism for driving the light source to rotate. The light sources are provided in at least one group, each group comprising at least two light sources emitting light of different wavelengths, with the light sources in the same group evenly distributed along a circumferential direction on a vertical plane. The rotary drive mechanism is used to drive the light source to rotate along the circumferential direction. The image acquisition device can not only automatically switch between light sources of different wavelengths online, but also automatically adjust the angle of the light source, which is convenient, fast, and highly accurate.

Description

Technical Field

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

[0002] In imaging systems, determining the relative distances and angles between light sources, between the light source and the imaging lens, between the imaging lens and the sample, and between the light source and the sample is crucial. On the one hand, proper distances and angles between optical components contribute to image quality, and adjusting the light source angle directly impacts illumination uniformity. On the other hand, when capturing images of different batches of samples, the distances and angles between the various optical components within the system directly impact the stability of the image dataset. Therefore, establishing a standardized and stable movement and rotation mechanism is crucial for ensuring image dataset stability.

[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 a different band, 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 manually measured. 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, fast and has high accuracy.

[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 capturing a fluorescence image of the plant epidermis and a fill light mechanism for providing illumination for the capturing work;

[0007] The image acquisition module includes an industrial camera 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 in at least one group, each group of light sources is provided with at least two light sources that emit light of different wavelengths, and the light sources in 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, two vertical guide rods are provided and are vertically arranged in parallel in the chassis, and 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 can be referred to the existing technology.

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

[0013] A preferred embodiment of the present invention is that 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 through a fixed structure.

[0014] In a preferred embodiment of the present invention, the fill light mechanism further includes a transverse drive mechanism for driving the light source to move laterally; the transverse drive mechanism includes a transverse drive motor, a transverse moving frame, and a transverse transmission assembly, wherein the transverse drive motor is mounted on the fill light frame; the rotary drive mechanism is mounted on the transverse moving frame; the transverse transmission assembly includes 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. With this structure, the light source can be driven laterally by the transverse drive motor, thereby adjusting its position to meet different needs.

[0015] Furthermore, two transverse moving frames and two transverse screw nuts are provided, and two sets of rotary drive mechanisms are provided, one on each of the two transverse moving frames. The transverse screw is a positive and negative threaded screw, and the two transverse screw nuts are respectively engaged at both ends of the transverse screw. In this way, two sets of light sources can be driven to move laterally simultaneously, thereby adjusting the distance between the two sets 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 wavelength bands 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, with the chassis hidden in the figure. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be 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 capturing the fluorescence image of the 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 set 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 can be referred to the existing technology.

[0027] See also Figure 1-2 The fill light mechanism includes a light source 5, a rotation drive mechanism for driving the light source 5 to rotate, and a transverse drive mechanism for driving the light source 5 to move transversely; the light sources 5 are provided in two groups and arranged horizontally, and each group of light sources 5 has at least two light sources and emits light of different wavelengths; the light sources 5 in the same group are evenly distributed along the circumferential direction on the vertical plane; the rotation drive 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) and the transmission shaft 7 are coaxially fixedly connected. 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 transverse drive mechanism includes a transverse drive motor (using a 42mm stepper motor, not shown), a transverse moving frame 8, and a transverse transmission assembly (not shown). The transverse drive motor is mounted on the fill light frame 9; the rotation drive mechanism is mounted on the transverse moving frame 8; and 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 7, and the transverse screw nut is fixedly connected to the fill light frame 9. With this structure, the light source 5 can be moved laterally by the transverse drive motor, thereby adjusting its position to meet different needs.

[0030] Furthermore, two transverse moving frames 8 and two transverse screw nuts are provided, and two sets of rotary drive mechanisms are provided, one on each of the two transverse moving frames 8. The transverse screw is a positive and negative thread screw, and the two transverse screw nuts are respectively engaged at both ends of the transverse screw. In this way, the two sets of light sources 5 can be driven to move laterally simultaneously, and the distance between the two sets 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 provided 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 shoots, 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 the 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 considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. An image acquisition device for detecting the fluorescence characteristics of plant epidermis, comprising an image acquisition module for capturing the 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 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 in at least one group, each group of light sources includes at least two light sources and emits light of different wavelengths. The light sources in 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. 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; The vertical guide rods are provided with two and are vertically arranged in parallel in the chassis, and 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; The rotary drive mechanism includes a rotary drive motor and a transmission shaft, wherein 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 the circle formed by the arrangement of the light sources, and the transmission shaft is connected to the light sources via a fixed structure; 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.

2. 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.

3. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 1, characterized in that: There are two transverse moving frames and two transverse screw nuts, and two groups of rotary drive mechanisms are 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.

4. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 1, characterized in that: The transverse drive mechanisms are provided in two groups and are arranged horizontally. The directions in which the two groups of transverse drive mechanisms are arranged horizontally are parallel to the axis of the transmission shaft. The transmission shaft spans between the two groups of transverse drive mechanisms.

5. The image acquisition device for detecting the fluorescence characteristics of plant epidermis according to claim 1, 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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