Detection device and detection system

Abstract

The utility model discloses detection equipment and a detection system. The detection equipment comprises a shell, a light-emitting device and an imaging device. The light-emitting device is arranged on the shell, the light-emitting device is provided with multiple working modes, the light-emitting device in each working mode emits light rays with different light field intensities to the to-be-detected object for multiple times, and the colors of the light rays emitted to the to-be-detected object by the light-emitting device in different working modes are different. The imaging device is arranged on the shell and used for obtaining a to-be-detected image of the to-be-detected object based on the light emitted by the light emitting device. According to the application, the light emitting device emits the light rays with different colors to the to-be-detected object, so that when the imaging device acquires the image of the to-be-detected object, the light rays with the same color as the to-be-detected object can be completely reflected, defects in the to-be-detected image acquired by the imaging device are more obvious, and the detection accuracy is improved. Therefore, the detection effect of detecting the defects in the to-be-detected image is ensured. And when the to-be-detected object has a high-reflectivity part, a proper to-be-detected image can be selected to ensure the detection effect.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and more specifically, to a detection equipment and a detection system. Background Art

[0002] At present, when inspecting products for defects, a combination of color cameras and white light sources is often used to capture images of products, thereby inspecting defects in product images. However, when products, such as battery cells, have colors, the camera will not be able to clearly see the defects in the product images when it uses white light to capture images of the products, thus affecting the effectiveness of defect inspection on the products. Summary of the invention

[0003] The embodiments of the present application provide a detection device and a detection system, which are at least used to solve the problem of how to ensure the effectiveness of defect detection on color products.

[0004] The detection device provided in the embodiment of the present application includes a housing, a light-emitting device and an imaging device. The light-emitting device is arranged in the housing, and the light-emitting device is provided with multiple working modes. The light-emitting device in each working mode emits multiple light beams with different light field intensities to the object to be tested, and the light beams emitted to the object to be tested by the light-emitting device in different working modes have different colors. The imaging device is arranged in the housing, and the imaging device is used to obtain the image of the object to be tested based on the light emitted by the light-emitting device.

[0005] In some embodiments, the housing includes a first shell and a second shell. The imaging device is disposed in the first shell. The first shell and the second shell are stacked, the light emitting device is disposed in the second shell, the first shell and the second shell are provided with opposite through holes so that the imaging device can obtain the image to be measured through the through holes, and a dome structure is formed on a side of the second shell away from the first shell.

[0006] In some embodiments, the dome structure includes a dome and two side walls, the surface of the dome is provided with a diffuse reflection material, the side wall is located on a side of the dome away from the first shell, and the two side walls are respectively connected to one end of the dome.

[0007] In some embodiments, the side wall includes a main body and a protrusion, one end of the main body is connected to one end of the dome, and the other end of the main body is connected to the protrusion, the protrusion extends from the main body toward the center of the second shell, and a detection position is formed between the two protrusions, and the detection position is used to place the object to be tested.

[0008] In some embodiments, the light emitting device includes a light source, a control unit, and a position detection unit. The light source is disposed on a side of the protrusion close to the dome. The control unit is used to control the light source to emit light. The position detection unit includes a transmitting end and a receiving end, the transmitting end is used to transmit a position detection signal to the detection position, and the receiving end is used to receive the position detection signal. When the receiving end does not receive the position detection signal, the position detection unit drives the control unit to control the light source to emit light to the dome and reflect to the surface of the object to be detected at the detection position.

[0009] In some embodiments, the light source includes a red light source, a green light source, and a blue light source, and the red light source, the green light source, and the blue light source are evenly arranged on the protrusion. When the receiving end receives the positioning signal, the positioning unit drives the control unit to control the red light source, the green light source, and the blue light source to emit light in sequence.

[0010] In some embodiments, the operating mode includes a first operating mode, a second operating mode, and a third operating mode. In the first operating mode, the control unit is used to control the red light source to emit red light with different light intensities twice. In the second operating mode, the control unit is used to control the green light source to emit green light with different light intensities twice. In the third operating mode, the control unit is used to control the blue light source to emit blue light with different light intensities twice.

[0011] In certain embodiments, the imaging device comprises a black and white camera.

[0012] The detection system provided in the embodiment of the present application comprises a detection device and a detection apparatus of any of the above embodiments. The detection device is used to detect the image to be detected.

[0013] In some embodiments, the detection device further includes a fusion unit, and the fusion unit is used to fuse the multiple images to be detected.

[0014] The detection device provided in the embodiment of the present application emits a plurality of light rays of different colors to the object to be tested through a light emitting device, so that when the imaging device acquires the image of the object to be tested, for the light rays of the same color as the object to be tested, it can completely reflect the light rays, so that the defects in the image to be tested acquired by the imaging device are more obvious, thereby ensuring the detection effect of the defects in the image to be tested. And because the light emitting device can also emit multiple light rays of different light field intensities to the object to be tested in each working mode, so that the imaging device can acquire the images to be tested under multiple light fields of the object to be tested, when the object to be tested has a component with high reflectivity, it can select the appropriate image to be tested to complete defect detection, thereby ensuring the detection effect.

[0015] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of a detection device according to one embodiment of the present application;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure of the housing of the detection device shown;

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure of the protruding portion of the housing of the detection device shown;

[0020] Figure 4 It is a schematic diagram of the structure of the detection system in certain embodiments of the present application.

[0021] Description of main component symbols:

[0022] Detection system 1000;

[0023] Detection device 100; shell 10, first shell 11, first through hole 111, second shell 12, second through hole 121, dome structure 122, dome 1222, side wall 1223, main body 12231, protrusion 12232; light emitting device 20, light source 21, control unit 22, positioning unit 23, transmitting end 231, receiving end 232; imaging device 30; detection device 300, fusion unit 301. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0025] In the description of the embodiments of the present application, it is worth mentioning that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. Features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present application, "multiple" means two or more, unless otherwise clearly defined.

[0026] In the description of the implementation methods of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the implementation methods of the present application can be understood according to specific circumstances.

[0027] In the embodiments of the present application, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] The disclosure below provides many different embodiments or examples to realize different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. The embodiments of the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. The embodiments of the present application provide various specific processes and examples of materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0029] See also Figure 1 , the detection device 100 provided in the embodiment of the present application. The detection device 100 includes a housing 10, a light emitting device 20 and an imaging device 30. The light emitting device 20 is arranged on the housing 10, and the light emitting device 20 is provided with a plurality of working modes. The light emitting device 20 in each working mode emits a plurality of light beams with different light field intensities to the object to be tested 200, and the light emitting device 20 in different working modes emits different colors of light beams to the object to be tested 200. The imaging device 30 is arranged on the housing 10, and the imaging device 30 is used to obtain the image to be tested of the object to be tested 200 based on the light beams emitted by the light emitting device 20.

[0030] The detection device 100 of the present application emits a plurality of light rays of different colors to the object to be tested 200 through the light emitting device 20, so that when the imaging device 30 acquires an image of the object to be tested 200, for the light rays of the same color as the object to be tested 200, it can completely reflect the light rays, so that the defects in the image to be tested acquired by the imaging device 30 are more obvious, thereby ensuring the detection effect of the defects in the image to be tested. And because the light emitting device 20 can also emit multiple light rays of different light field intensities to the object to be tested 200 in each working mode, so that the imaging device 30 can acquire the images to be tested under multiple light fields of the object to be tested 200, when the object to be tested 200 has a component with high reflectivity, it can select a suitable image to be tested to complete defect detection, thereby ensuring the detection effect.

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] See also Figure 1 The detection device 100 includes a housing 10 , a light emitting device 20 and an imaging device 30 .

[0033] The housing 10 includes a first shell 11 and a second shell 12 . The first shell 11 and the second shell 12 are stacked and arranged, and the second shell 12 is located below the first shell 11 .

[0034] Specifically, the first housing 11 is formed with a receiving space to completely receive the imaging device 30. In other words, the imaging device 30 is completely received inside the first housing 11 to provide a darkroom environment for the imaging device 30, thereby ensuring the imaging quality of the imaging device 30.

[0035] The first shell 11 and the second shell 12 are provided with opposite through holes. For example, the first shell 11 is provided with a first through hole 111, and the second shell 12 is provided with a second through hole 121. The imaging device 30 is arranged opposite to the first through hole 111 and the second through hole 121, so as to ensure that the imaging device 30 can pass through the first through hole 111 and the second through hole 121 to obtain the image of the object 200 to be tested.

[0036] In one embodiment, the first shell 11 is provided with a heat dissipation hole 112, and a heat dissipation structure 113, such as a fan, may be arranged in the heat dissipation hole 112. The heat dissipation structure 113 can dissipate heat for the imaging device 30 in the first shell 11 to ensure that the imaging device 30 will not overheat due to a long working time, thereby preventing the imaging device 30 from being damaged and ensuring the stability of the detection equipment 100.

[0037] A dome structure 122 is formed on one side of the second housing 12 away from the first housing 11. The dome structure 122 is a semicircular structure, which can ensure that after the light emitted by the light emitting device 20 is incident on the dome structure 122, more light can be reflected to the surface of the object under test 200 to provide illumination for the object under test 200.

[0038] See also Figure 2 The dome structure 122 includes a dome 1222 and two side walls 1223 .

[0039] The surface of the dome 1222 is coated with a diffuse reflection material to ensure that when the light emitted by the light emitting device 20 is incident on the dome structure 122, the light will be diffusely reflected by the dome structure 122, so as to ensure that the light reflected to the object to be measured 200 is highly uniform, thereby ensuring the imaging effect of the imaging device 30.

[0040] The two side walls 1223 are respectively connected to one end of the dome 1222 and are located on a side of the dome 1222 away from the first housing 11. For example, one side wall 1223 is connected to the first end of the dome 1222, and the other side wall 1223 is connected to the second end of the dome 1222. It can be understood that the two side walls 1223 are arranged opposite to each other.

[0041] Specifically, the side wall 1223 includes a body portion 12231 and a protruding portion 12232. One end of the body portion 12231 is used to connect to the dome 1222, and the other end of the body portion 12231 is used to connect to the protruding portion 12232. The protruding portion 12232 is farther away from the first housing 11 than the body portion 12231.

[0042] Specifically, the protrusion 12232 extends from the main body 12231 toward the center of the second housing 12. It can be understood that the protrusion 12232 is closer to the center of the second housing 12 than the main body 12231. A detection position 123 may be formed between the two protrusions 12232, and the detection position 123 is used to place the object to be tested 200. That is, the imaging device 30 shoots the object to be tested 200 on the detection position 123 through the first through hole 111 and the second through hole 121, thereby obtaining a test image of the object to be tested 200.

[0043] Please refer again Figure 2 The light emitting device 20 is disposed in the second housing 12 . The light emitting device 20 includes a light source 21 , a control unit 22 and a position detection unit 23 .

[0044] The light source 21 is disposed on one side of the protrusion 12232 close to the dome 1222. The light source 21 is used to emit light toward the dome 1222, and after being reflected by the dome 1222, it is incident on the surface of the object to be tested 200 to provide light to the object to be tested 200, thereby ensuring that the imaging device 30 obtains the image to be tested of the object to be tested 200.

[0045] Please combine Figure 3 The light source 21 includes a red light source 211, a green light source 212 and a blue light source 213. Taking the light source 21 on a protrusion 12232 as an example, the red light source 211, the green light source 212 and the blue light source 213 are evenly arranged on the protrusion 12232.

[0046] Specifically, the working modes of the light emitting device 20 include a first working mode, a second working mode, and a third working mode. In one embodiment, in the first working mode, the red light source 211 of the light emitting device 20 emits light; in the second working mode, the green light source 212 of the light emitting device 20 emits light; in the third working mode, the red light source 211 of the light emitting device 20 emits light. It can be understood that the light emitting device 20 can emit light of multiple colors to the dome 1222, and reflect it onto the object to be tested 200, and the imaging device 30 can generate an image to be tested of the object to be tested 200 according to each color of light.

[0047] More specifically, when the object to be tested 200 is a colored object to be tested 200, such as a blue electrode sheet, the imaging device 30 obtains a blue image to be tested based on the light emitted by the blue light source 213, and the defects of the object to be tested 200 in the image to be tested are more obvious, thereby ensuring that when the defects of the object to be tested 200 are detected based on the image to be tested, the detection accuracy is higher.

[0048] The control unit 22 is used to control the light source 21 to emit light. Specifically, the control unit 22 can control the red light source 211, the green light source 212 and the blue light source 213 to emit light in sequence. It can be understood that when the control unit 22 controls the red light source 211 to emit light, the green light source 212 and the blue light source 213 do not emit light, and the imaging device 30 can obtain a red image to be tested according to the red light source 211; when the control unit 22 controls the green light source 212 to emit light, the red light source 211 and the blue light source 213 do not emit light, and the imaging device 30 can obtain a green image to be tested according to the red light source 211; when the control unit 22 controls the blue light source 213 to emit light, the red light source 211 and the green light source 212 do not emit light, and the imaging device 30 can obtain a blue image to be tested according to the red light source 211. In this way, when detecting defects of the object to be tested 200, detection can be performed according to the image to be tested corresponding to the color of the object to be tested 200 to improve the effect of detecting defects.

[0049] The control unit 22 can also control the number of times and brightness of the light source 21. In one embodiment, in the first working mode, the control unit 22 can control the red light source 211 to emit red light with different light twice, and the imaging device 30 can be exposed twice to generate a red bright field image and a red dark field image. The bright field image and the dark field image are both images to be tested.

[0050] Thus, when the object to be tested 200 is a red cell, if there are metal grid lines on the cell, the red dark field image can ensure that the area is not overexposed, so as to facilitate defect detection of the grid lines. When there are scratches, dirt and other defects on the surface of the cell, the defects in the red bright field image are more obvious, so as to facilitate defect detection.

[0051] Similarly, in the second working mode, the control unit 22 can control the green light source 212 to emit blue light with different light twice, and the imaging device 30 can be exposed twice to generate a green bright field image and a green dark field image; in the third working mode, the control unit 22 can control the blue light source 213 to emit blue light with different light twice, and the imaging device 30 can be exposed twice to generate a blue bright field image and a blue dark field image.

[0052] It can be understood that the imaging device 30 can generate six images to be tested, including images to be tested of three colors and images to be tested of two types of light fields, according to the light emitted by the light emitting device 20. In this way, when performing defect detection on the object to be tested 200, a suitable image to be tested can be flexibly selected to perform defect detection on the object to be tested 200, so as to improve the detection effect.

[0053] The position checking unit 23 includes a transmitting end 231 and a receiving end 232. The transmitting end 231 is used to transmit a position checking signal to the detection position 123, and the receiving end 232 is used to receive the position checking signal.

[0054] It can be understood that after the transmitting end 231 transmits the check signal to the detection position 123, if the object to be detected 200 does not exist on the detection position 123, the check signal will not be blocked, and the check signal will be directly transmitted to the receiving end 232. After the transmitting end 231 transmits the check signal to the detection position 123, if the check signal is blocked, the receiving end 232 will not receive the check signal, and at this time, it means that the object to be detected 200 exists on the detection position 123.

[0055] In this way, when the receiving end 232 does not receive the detection signal, it means that there is an object to be tested 200 at the detection position 123, and the light source 21 is required to provide a light field for the object to be tested 200. The detection unit 23 can generate a trigger signal to drive the control unit 22 to control the light source 21 to emit light. The light source 21 can emit red light with higher brightness and red light with lower brightness in the first working mode, and can also emit green light with higher brightness and green light with lower brightness in the second working mode, and can also emit blue light with higher brightness and blue light with lower brightness in the third working mode, so that the imaging device 30 generates multiple images to be tested, so as to obtain an image that can show the defects of the object to be tested 200 more obviously, so as to improve the accuracy of defect detection.

[0056] In some embodiments, the red light source 211, the green light source 212, and the blue light source 213 may be light sources with any narrow spectrum distribution. The light source 20 may also include an ultraviolet light source and an infrared light source. It is understood that the more types of light sources 20 there are, the more images to be tested of the objects to be tested 200 are obtained, so as to ensure that suitable images to be tested can be selected for defect detection for a variety of objects to be tested 200, thereby ensuring defect detection effect.

[0057] It should be noted that when the control unit 22 controls the light source 21 to emit light, the light sources 21 of multiple different colors will be lit up in sequence, that is, the multiple working modes of the light emitting device 20 will be triggered to generate multiple images to be tested.

[0058] The imaging device 30 is disposed on the first housing 11. The imaging device 30 is a black and white camera. Since the light emitting device 20 can emit a plurality of monochromatic lights to the object to be tested 200, when the imaging device 30 photographs the object to be tested 200, compared with a color camera, the black and white camera does not filter the monochromatic light, thereby ensuring that the acquired image to be tested has a higher degree of color restoration.

[0059] In order to ensure the imaging effect of the imaging device 30 in acquiring the image to be measured, the imaging device 30 may also have the characteristics of wide spectrum, achromatic design, low distortion, vibration resistance, impact resistance and high and low temperature stability.

[0060] Please combine Figure 4 , the embodiment of the present application provides a detection system 1000. The detection system 1000 includes a detection device 300 and a detection device 100 of any of the above embodiments. Among them, the detection device 300 can be a device with processing functions such as a mobile phone, a tablet computer, a laptop computer, a desktop computer, etc.

[0061] Specifically, after the detection device 100 obtains the image to be tested of the object to be tested 200, the image to be tested can be transmitted to the detection device 300. The detection device 300 can then perform defect detection on the object to be tested 200 based on the multiple images to be tested. For example, the contour of the object to be tested 200 is detected to determine whether the object to be tested 200 has a notch, a broken edge, etc. For another example, the surface of the object to be tested 200 is detected to determine whether there are dirt, scratches, etc. on the surface of the object to be tested 200. For another example, the printed pattern of the object to be tested 200 is detected to determine whether the printed pattern of the object to be tested 200 is offset, missing, etc.

[0062] In the detection system 1000 of the embodiment of the present application, since the image to be tested of the object to be tested 200 acquired by the detection device 100 is a monochrome image to be tested, when the object to be tested 200 has color, the detection device 300 can also detect whether there is a defect in the color of the object to be tested 200 according to the image to be tested. For example, when the object to be tested 200 is red, the detection device 300 can determine whether the color of the object to be tested 200 is uniform, whether there is color difference, etc. according to the red image to be tested.

[0063] The detection device 300 further includes a fusion unit 301. The fusion unit 301 can be used to fuse multiple images to be detected.

[0064] Specifically, after the detection device 100 acquires multiple images to be tested of the object to be tested 200, the multiple images to be tested include bright field images and dark field images, such as red bright field images, green bright field images, blue bright field images, red dark field images, green dark field images, and blue dark field images.

[0065] In this way, the fusion unit 301 can fuse the red bright field image, the green bright field image and the blue bright field image to generate a white light bright field image, and mark the location of the defect in the white light bright field image. The detection system 1000 can then provide the white light bright field image with the defect location marked for display to the user.

[0066] It can be understood that the image of white light is similar to the object under test 200 observed by the human eye, and the human eye has a high degree of restoration. The detection system 1000 can display a bright field image of white light with defective positions marked, which can make it easier for users to view the final detection results, thereby improving the user experience.

[0067] The detection system 1000 of the present application emits a plurality of light beams of different colors to the object to be tested 200 through the light emitting device 20, so that when the imaging device 30 acquires an image of the object to be tested 200, for the light beams of the same color as the object to be tested 200, it can completely reflect the light beams, so that the defects in the image to be tested acquired by the imaging device 30 are more obvious, thereby ensuring the detection effect of the defects in the image to be tested. And because the light emitting device 20 can also emit multiple light beams of different light field intensities to the object to be tested 200 in each working mode, so that the imaging device 30 can acquire the images to be tested under multiple light fields of the object to be tested 200, when the object to be tested 200 has a component with high reflectivity, it can select a suitable image to be tested to complete defect detection, thereby ensuring the detection effect.

[0068] Furthermore, the fusion unit 301 of the detection system 1000 can fuse multiple images to be tested to generate a white light image with defective positions marked, and provide it to the user for display, so that the user can view the final detection result and improve the user's experience.

[0069] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0070] It is worth mentioning that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Features defined as "first" and "second" may explicitly or implicitly include at least one feature. In the description of this application, the meaning of "multiple" is at least two, two in one embodiment, three, unless otherwise clearly defined.

[0071] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A detection device, characterized in that: include: shell; A light emitting device, the light emitting device is arranged on the housing, the light emitting device is provided with a plurality of working modes, the light emitting device in each working mode emits a plurality of light beams with different light field intensities to the object to be measured, and the light beams emitted to the object to be measured by the light emitting device in different working modes have different colors; An imaging device is disposed on the housing and is used to obtain a plurality of images of the object to be tested based on the light emitted by the light emitting device.

2. The detection device according to claim 1, characterized in that: The housing comprises: a first housing, wherein the imaging device is disposed in the first housing; The second shell, the first shell and the second shell are stacked, the light emitting device is arranged in the second shell, the first shell and the second shell are provided with opposite through holes so that the imaging device can obtain the image to be measured through the through holes, and a dome structure is formed on the side of the second shell away from the first shell.

3. The detection device according to claim 2, characterized in that: The dome structure includes a dome and two side walls. A diffuse reflection material is provided on the surface of the dome. The side wall is located on a side of the dome away from the first shell. The two side walls are respectively connected to one end of the dome.

4. The detection device according to claim 3, characterized in that: The side wall includes a main body and a protruding portion, one end of the main body is connected to one end of the dome, and the other end of the main body is connected to the protruding portion, the protruding portion extends from the main body toward the center of the second shell, and a detection position is formed between the two protruding portions, and the detection position is used to place the object to be tested.

5. The detection device according to claim 4, characterized in that: The light emitting device comprises: A light source, the light source being disposed on a side of the protruding portion close to the dome; A control unit, the control unit is used to control the light source to emit light; and A position checking unit, the position checking unit comprising a transmitting end and a receiving end, the transmitting end is used to transmit a position checking signal to the detection position, and the receiving end is used to receive the position checking signal; When the receiving end does not receive the position detection signal, the position detection unit drives the control unit to control the light source to emit light to the dome and reflect the light to the surface of the object to be detected at the detection position.

6. The detection device according to claim 5, characterized in that: The light source includes a red light source, a green light source and a blue light source, and the red light source, the green light source and the blue light source are evenly arranged on the protruding part. When the receiving end receives the positioning signal, the positioning unit drives the control unit to control the red light source, the green light source and the blue light source to emit light in sequence.

7. The detection device according to claim 6, characterized in that: The working modes include a first working mode, a second working mode and a third working mode; In the first working mode, the control unit is used to control the red light source to emit red light twice with different light intensities; In the second working mode, the control unit is used to control the green light source to emit two green lights with different light intensities; In the third working mode, the control unit is used to control the blue light source to emit blue light with different light intensities twice.

8. The detection device according to claim 1, characterized in that: The imaging device includes a black and white camera.

9. A detection system, characterized in that: include: Detection device; The detection device according to any one of claims 1 to 8, wherein the detection device is used to detect the image to be detected.

10. The detection system according to claim 9, characterized in that: The detection device further comprises a fusion unit, and the fusion unit is used to fuse a plurality of the images to be detected.

Images