A single-angle image acquisition device for green plum

Abstract

The present technology discloses a single-angle image acquisition device for green plums, including a camera, a camera fixing bracket, an electromagnet fixing device, an electromagnet, a plane mirror, a stage and a rotating device; the camera is arranged in the middle of the camera fixing bracket; the middle of the camera fixing bracket is rotatably connected with a rotating device, the bottom of the rotating device is connected with a stage, the left and right ends of the stage are made of metal materials, the initial position of the stage is located directly below the camera, and a V-shaped plane mirror is arranged directly below the initial position of the stage; an electromagnet fixing device is arranged on the upper left and upper right sides of the stage, the top of the electromagnet fixing device is connected to the camera fixing bracket and the bottom is connected with an electromagnet. The present technology can use the rotating device to obtain information on the upper surface and the left and right surfaces of green plums, which greatly improves the efficiency of collecting surface information of green plums compared with manually rotating green plums; and the camera only collects images at one angle each time, reducing the amount of calculation.

Description

Technical Field

[0001] The technology belongs to the field of fruit sorting, and mainly relates to a single-angle image acquisition device for green plum fruits. Background Art

[0002] Greengage, also known as sour plum, is a tree native to China and is one of my country's specialty fruits. Greengage fruit is small in size and has high nutritional value, but the current processing technology and comprehensive utilization rate of greengage in my country are relatively low, which seriously restricts the production level of my country's fruits.

[0003] In recent years, machine vision technology, near-infrared spectroscopy and multi-spectral technology have been gradually applied to non-destructive testing of fruits. In project pre-research, cameras are often used to collect surface information of green plums, and then the surface quality of green plums is matched with physical and chemical indicators. In actual experiments, it is often necessary to collect multiple surface images of a fruit to expand the sample size. However, since green plums are small and the vertical distance between the camera and the operating table is small, it is troublesome for the experimenter to manually rotate the green plums, and the green plums must be repositioned to the camera imaging area after rotation. Although the existing multiple plane mirrors can collect fruit images at the same time, they can collect multi-angle images of the fruit at the same time, but the multi-angle images collected are in one picture at the same time, and the later data segmentation processing is difficult, which greatly increases the workload of this process. Summary of the invention

[0004] The technical problem to be solved by the present technology is to provide a single-angle image acquisition device for green plums in view of the deficiencies of the above-mentioned prior art. The single-angle image acquisition device for green plums makes it possible to obtain information on the upper surface and the left and right surfaces of green plums by using a rotating device in research. Compared with manually rotating green plums, the efficiency of collecting surface information of green plums is greatly improved; and the camera only collects images at one angle each time, reducing the amount of calculation.

[0005] In order to achieve the above technical objectives, the technical solution adopted by this technology is:

[0006] A single-angle image acquisition device for green plums, comprising a camera, a camera fixing bracket, an electromagnet fixing device, an electromagnet, a plane mirror, a stage and a rotating device;

[0007] The camera is arranged in the middle of the camera fixing bracket;

[0008] The middle part of the camera fixing bracket is rotatably connected with a rotating device, the bottom of the rotating device is fixedly connected with a stage and the rotating device is used to drive the stage to rotate left and right, the left and right ends of the stage are made of metal materials, the initial position of the stage is located directly below the camera, and a V-shaped plane mirror is provided directly below the initial position of the stage;

[0009] An electromagnet fixing device is provided on the upper left and upper right sides of the stage. The top of the electromagnet fixing device on the upper left side is connected to the left side of the camera fixing bracket and the bottom end is connected to an electromagnet. The top of the electromagnet fixing device on the upper right side is connected to the right side of the camera fixing bracket and the bottom end is connected to an electromagnet. The electromagnet is used to attract the stage on the rotating device.

[0010] As a technical solution for further improving the present technology, a hole is provided in the middle of the camera fixing bracket, and the camera is arranged in the hole.

[0011] As a technical solution for further improvement of the present technology, the electromagnet fixing device includes an electromagnet fixing plate and two electromagnet brackets, the electromagnet fixing plate is fixedly connected to the camera fixing bracket, the top ends of the two electromagnet brackets are respectively fixedly connected to the front and rear sides of the electromagnet fixing plate, and the bottom ends of the two electromagnet brackets are fixedly connected to electromagnets.

[0012] As a technical solution for further improving the present technology, the electromagnet bracket is V-shaped, and the bottom end of the electromagnet bracket points to the loading platform in the middle and lower part of the camera fixing bracket.

[0013] As a technical solution for further improving the present technology, the rotating device includes two rotating brackets, the front and rear sides of the middle part of the camera fixing bracket are both rotatably connected to the rotating brackets, and a loading platform is fixedly connected between the bottoms of the two rotating brackets.

[0014] As a technical solution for further improvement of the present technology, the rotating device also includes a motor, and connecting ears are provided on the front and rear sides of the middle part of the camera fixing bracket. The output shaft of the motor is rotatably connected to the reserved holes on the connecting ears through bearings, and the output shaft of the motor is vertically fixedly connected to the rotating bracket.

[0015] The beneficial effects of this technology are:

[0016] (1) The single-angle image acquisition device for green plums can use a rotating device and a stage to rotate the green plum fruit to a specified position, and the rotating device is sucked by an electromagnet. The green plum fruit is imaged in a plane mirror, and the camera can capture the image of the green plum in the plane mirror, thereby obtaining information about the left or right surface of the green plum. When the rotating device is stationary, the camera can capture the image of the upper surface of the green plum, thereby obtaining information about the upper surface of the green plum. Compared with manually rotating the green plum, the operation is simple and the efficiency of collecting surface information of the green plum is greatly improved.

[0017] (2) During the operation of the device, the camera only captures images from one angle each time, eliminating the need for post-processing image segmentation, thus reducing the amount of calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of this embodiment is three-dimensional Figure 1 .

[0019] Figure 2 The structure of this embodiment is three-dimensional Figure 2 .

[0020] Figure 3 The structure of this embodiment is three-dimensional Figure 3 .

[0021] Figure 4 This is the front view of the present embodiment.

[0022] Figure 5 It is a left view or a right view of this embodiment.

[0023] Figure 6 (a) is a schematic diagram of collecting the upper surface image of green plum in this embodiment Figure 1 .

[0024] Figure 6 (b) is a schematic diagram of collecting the upper surface image of green plum in this embodiment Figure 2 .

[0025] Figure 7 (a) is a schematic diagram of the left surface image of green plum collected in this embodiment Figure 1 .

[0026] Figure 7 (b) is a schematic diagram of the left surface image of green plum collected in this embodiment Figure 2 .

[0027] Figure 8 (a) is a schematic diagram of the left and right extreme positions for collecting green plums in this embodiment Figure 1 .

[0028] Figure 8 (b) is a schematic diagram of the left and right extreme positions for collecting green plums in this embodiment Figure 2 .

[0029] Fig. 9 This is a schematic diagram of the imaging principle of this embodiment. DETAILED DESCRIPTION

[0030] According to the following Figures 1 to 9 The specific implementation methods of this technology are further described as follows:

[0031] like Figures 1 to 5 As shown, a single-angle image acquisition device for green plums includes a camera 1, a camera fixing bracket 3, an electromagnet fixing device, an electromagnet 6, a plane mirror 7, a stage 8 and a rotating device.

[0032] The camera 1 is arranged in the middle of the camera fixing bracket 3 .

[0033] The middle part of the camera fixing bracket 3 is rotatably connected with a rotating device, the bottom of the rotating device is fixedly connected with a stage 8 and the rotating device is used to drive the stage 8 to rotate left and right, the left and right ends of the stage 8 and the attraction parts of the electromagnet 6 are made of metal material, the initial position of the stage 8 is located directly below the camera 1, and a V-shaped plane mirror 7 is provided directly below the initial position of the stage 8. The plane mirror 7 is composed of a plane mirror 1 7-2 and a plane mirror 2 7-1.

[0034] Electromagnet fixing devices are provided on the upper left and upper right sides of the stage 8. The top of the electromagnet fixing device on the upper left side is connected to the left side of the camera fixing bracket 3 and the bottom end is connected to the electromagnet 6. The top of the electromagnet fixing device on the upper right side is connected to the right side of the camera fixing bracket 3 and the bottom end is connected to the electromagnet 6. The electromagnet 6 is used to attract the stage 8 on the rotating device.

[0035] A hole 2 is provided in the middle of the camera fixing bracket 3 , and the camera 1 is arranged in the hole 2 .

[0036] The electromagnet fixing device includes an electromagnet fixing plate 4 and two electromagnet brackets 5. The electromagnet fixing plate 4 is fixedly connected to the camera fixing bracket 3. The top ends of the two electromagnet brackets 5 are respectively fixedly connected to the front and rear sides of the electromagnet fixing plate 4 and are symmetrically distributed. The bottom ends of the two electromagnet brackets 5 are fixedly connected with electromagnets 6.

[0037] The electromagnet bracket 5 is V-shaped, and the bottom end of the electromagnet bracket 5 points to the loading platform 8 at the lower middle part of the camera fixing bracket 3 .

[0038] The rotating device includes two rotating brackets 10 , and the front side and the rear side of the middle part of the camera fixing bracket 3 are both rotatably connected with the rotating brackets 10 , and the bottom of the two rotating brackets 10 is fixedly connected with the loading platform 8 .

[0039] The rotating device also includes a motor (not shown in the figure), and the front and rear sides of the middle part of the camera fixing bracket 3 are both provided with connecting ears 12. The output shaft 11 of the motor is rotatably connected to the reserved hole on the connecting ear 12 through a bearing, and the output shaft 11 of the motor is vertically fixedly connected to the rotating bracket 10. After the motor is powered on, it drives the rotating bracket 10 to rotate left or right.

[0040] When the device is not working, such as Figure 6As shown in (a) and 6 (b), the stage 8 is directly below the camera 1, and a green plum fruit is placed on it (the green plum 9 and the stage 8 remain relatively still). At this time, image information of the upper surface of the green plum 9 can be collected; when the camera 1 completes the collection of the upper surface image of the green plum 9, the device starts to work, and the motor drives the rotating bracket 10 to rotate 30° to the left. The left end of the stage 8 is made of metal material. The electromagnet 6 at the left end is energized at this time, so that the entire rotating bracket 10 is fixed at a left tilt of 30°. The green plum fruit is imaged into a plane mirror 7-2 that is 30° to the horizontal. At this time, the camera 1 collects the image of the green plum 9 in the plane mirror 7, which is the image of the right surface of the green plum 9; when the image of the right surface of the green plum 9 is collected, the left end The electromagnet 6 device is powered off at this time, and the motor drives the rotating bracket 10 to rotate 60° to the right (equivalent to the rotating bracket 10 rotating 30° to the right from the lowest end), which is symmetrical with the left state in the vertical direction. The right end of the stage 8 is made of metal material. The electromagnet 6 at the right end is powered on at this time, so that the entire rotating bracket 10 is fixed at a right tilt of 30°. The green plum 9 fruit is imaged in the plane mirror 7-1 which is 30° to the horizontal. The camera 1 collects the image of the green plum 9 in the plane mirror 7 at this time, which is the image of the left surface of the green plum 9. After the image is collected, the electromagnet 6 at the right end is powered off, and the motor drives the rotating bracket 10 to rotate to the initial position. The green plum 9 fruit is removed, and after marking, the image of the next fruit is collected. Figure 7 The left side surface image of the green plum 9 is collected for this embodiment. Figure 8 The left and right extreme position effect diagrams of Qingmei 9 are collected for this embodiment. Fig. 9 This is a diagram showing the principle of imaging when light is reflected on a plane mirror.

[0041] During the operation of the device, the image information of the green plum 9 fruit at different angles can be collected. During the operation of the device, the camera 1 only collects images at one angle each time, thereby reducing the amount of calculation.

[0042] The protection scope of the present technology includes but is not limited to the above embodiments. The protection scope of the present technology shall be based on the claims. Any replacement, deformation, and improvement of the present technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present technology.

Claims

1. A single-angle image acquisition device for green plums, characterized in that: It includes a camera, a camera fixing bracket, an electromagnet fixing device, an electromagnet, a plane mirror, a stage and a rotating device; The camera is arranged in the middle of the camera fixing bracket; The middle part of the camera fixing bracket is rotatably connected with a rotating device, the bottom of the rotating device is fixedly connected with a stage and the rotating device is used to drive the stage to rotate left and right, the left and right ends of the stage are made of metal materials, the initial position of the stage is located directly below the camera, and a V-shaped plane mirror is provided directly below the initial position of the stage; The upper left and upper right sides of the stage are both provided with electromagnet fixing devices, the top of the electromagnet fixing device on the upper left side is connected to the left side of the camera fixing bracket and the bottom end is connected to an electromagnet, the top of the electromagnet fixing device on the upper right side is connected to the right side of the camera fixing bracket and the bottom end is connected to an electromagnet, and the electromagnet is used to attract the stage on the rotating device; The electromagnet fixing device comprises an electromagnet fixing plate and two electromagnet brackets, the electromagnet fixing plate is fixedly connected to the camera fixing bracket, the top ends of the two electromagnet brackets are respectively fixedly connected to the front side and the rear side of the electromagnet fixing plate, and the bottom ends of the two electromagnet brackets are fixedly connected to electromagnets; The electromagnet bracket is V-shaped, and the bottom end of the electromagnet bracket points to the stage below the camera fixing bracket; The rotating device comprises two rotating brackets, the front side and the rear side of the middle part of the camera fixing bracket are both rotatably connected with the rotating brackets, and the bottom of the two rotating brackets is fixedly connected with a loading platform; The rotating device also includes a motor. The front and rear sides of the middle part of the camera fixing bracket are provided with connecting ears. The output shaft of the motor is rotatably connected to the reserved holes on the connecting ears through bearings. The output shaft of the motor is vertically fixedly connected to the rotating bracket.

2. The green plum single-angle image acquisition device according to claim 1, characterized in that: A hole is arranged in the middle of the camera fixing bracket, and the camera is arranged in the hole.

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