Detection system

Abstract

The utility model provides a kind of detection system for detecting image collector, the detection system includes at least one detection unit, the detection unit includes test box and fixture.Test box includes shell, whiteboard, picture card unit and light source.The side of shell has light-transmitting part, and the part of shell is closed outside light-transmitting part.Whiteboard is located in shell.Picture card unit is located in shell.Light source is located in shell, and can be opened or closed under control.Fixture closes light-transmitting part, and fixture fixes image collector with preset pose, and the position of image collector corresponds with the position of light-transmitting part.At least one of whiteboard or picture card unit is movable relative to light-transmitting part.The embodiment of the utility model reduces the influence of ambient light on detection result, and white card and picture card unit can be used to detect different projects for image collector, can automatically switch detection project, simplify detection process, improve detection efficiency and the consistency of detection standard.

Description

Technical Field

[0001] This utility model relates to the field of image acquisition device detection technology, and in particular to a detection system. Background Technology

[0002] Image acquisition devices are crucial sensors in electronic devices, widely used in many fields. The quality of an image acquisition device is primarily determined by inspecting the images it acquires. However, current image acquisition device inspection mainly relies on manual inspection, which is inefficient and uses inconsistent standards. Even in devices capable of automated image acquisition device inspection, the inspection function is limited, or frequent changes to the inspection items are required, making the operation complex.

[0003] The content of the background section is merely the technology known to the inventor and does not necessarily represent the prior art in this field. Utility Model Content

[0004] To address one or more deficiencies in the prior art, this utility model provides a detection system, characterized in that it is used to detect an image acquisition device, the detection system comprising at least one detection unit, the detection unit comprising: Test chamber, the test chamber comprising: The outer casing has a light-transmitting portion on one side, and the portion of the outer casing other than the light-transmitting portion is closed. Whiteboard, the whiteboard being located inside the housing; The drawing card unit is located inside the housing; A light source, located inside the housing, is controllable to be turned on or off; A fixture is provided to enclose the light-transmitting part. The fixture fixes the image acquisition device in a preset position, and the position of the image acquisition device corresponds to the position of the light-transmitting part. In this embodiment, at least one of the whiteboard or the graphic card unit is movable relative to the light-transmitting portion.

[0005] According to one aspect of this utility model, the light source is disposed on the outer periphery of the whiteboard or the graphic card unit; or... The light source is located on the side of the whiteboard or the graphic unit away from the light-transmitting part.

[0006] According to one aspect of the present invention, the test chamber further includes: A lens assembly is disposed within the housing, and the optical axis of the lens assembly is collinear with the optical axis of the image acquisition unit.

[0007] According to one aspect of the present invention, the whiteboard and the image card unit are arranged in parallel, and the optical axis of the image acquisition device is perpendicular to the whiteboard and the image card unit.

[0008] According to one aspect of the present invention, the test chamber further includes: A driving component is provided, wherein the whiteboard is fixedly connected to the driving component, and the driving component drives the whiteboard to move relative to the light-transmitting part.

[0009] According to one aspect of the present invention, the driving assembly includes a telescopic rod, the whiteboard is fixedly connected to the telescopic rod, and the telescopic rod drives the whiteboard to move in a plane perpendicular to the optical axis of the image acquisition device.

[0010] According to one aspect of the present invention, the driving component drives the whiteboard to move between a first position and a second position; when the whiteboard is in the first position, the area covered by the whiteboard is greater than or equal to the field of view of the image acquisition device in a preset pose; when the whiteboard is in the second position, the whiteboard is completely out of the field of view of the image acquisition device in the preset pose.

[0011] According to one aspect of the present invention, the image card unit is movable relative to the light-transmitting portion in a direction parallel to the optical axis of the image acquisition device; the image card unit includes a detachable image card having a preset pattern.

[0012] According to one aspect of the present invention, the test chamber further includes: A screw, wherein the screw is arranged parallel to the optical axis of the image acquisition device; A guide rod, which is arranged parallel to the screw; A driving device is connected to the screw drive. The drawing card unit is movably mounted on the screw and the guide rod, and the driving device drives the drawing card unit to move along the guide rod.

[0013] According to one aspect of the present invention, the detection system further includes: A control system, which is signal-connected to the image acquisition unit; A display device, wherein the display device is signal-connected to the control system; The control system controls the image acquisition device to acquire images, and the display device displays the images and / or displays the analysis results of the images.

[0014] Compared with existing technologies, embodiments of this utility model provide a detection system that can include one or more detection units, which facilitates the detection of multiple image acquisition devices, improving space utilization and detection efficiency. For a single detection unit, a fixture can keep the image acquisition device in a fixed position, and the test chamber provides a closed detection environment, reducing the influence of ambient light on the detection results. White card and image card units can be used to perform different tests on the image acquisition devices. At least one of the white card and image card units is movable relative to the light-transmitting part, allowing for automatic switching of detection items, simplifying the detection process, and improving detection efficiency and consistency of detection standards. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the detection system in some embodiments of this utility model; Figure 2A This is a schematic diagram of the white card and driving components in some embodiments of this utility model; Figure 2B These are schematic diagrams of the card unit and driving device in some embodiments of this utility model; Figure 3 This is a schematic diagram of the connection between the drive device and the screw drive in some embodiments of this utility model; Figure 4 This is a structural block diagram of the detection system in some embodiments of this utility model. Detailed Implementation

[0017] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0022] The embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Embodiments of this utility model include a detection system for detecting an image acquisition device. Figure 1 The structure of a detection system 1 according to some embodiments of the present invention is shown, wherein the detection system 1 includes at least one detection unit 10.

[0024] For example Figure 1 As shown, the detection system 1 includes two detection units 10. In some embodiments, multiple detection units 10 can be arranged side by side, enabling simultaneous detection of multiple image acquisition devices 2, which improves the detection efficiency of the image acquisition devices 2. In some embodiments, multiple detection units 10 can share the same power supply system or processing system, which helps save resources and simplifies the structure of the detection system 1.

[0025] The testing unit 10 includes a test chamber 100 and a fixture 200. (See also...) Figure 2A and Figure 2B The test chamber 100 includes a shell 110, a whiteboard 120, a graphic unit 130, and a light source 140.

[0026] The housing 110 has a light-transmitting portion 111, and the portion of the housing 110 other than the light-transmitting portion 111 is closed. See details below. Figure 1 In some embodiments, the outer shell 110 is generally rectangular, with the light-transmitting portion 111 located on one side of the rectangular shape. For example, a through-hole is formed on the side of the rectangular shape, or it is made of a light-transmitting material. The other sides of the rectangular shape are closed to block ambient light and reduce the impact on the detection accuracy of the image acquisition device 2. In some embodiments, the outer shell 110 may also be other shapes, such as cylindrical or other irregular shapes, which is beneficial for adapting to the application scenarios of the detection system 1 and saving space.

[0027] In some embodiments, a matte layer may be provided on the inner wall of the housing 110, which helps to reduce the stray light effect caused by light reflection on the inner wall of the housing 110. In some embodiments, a matte paint may be applied to the inner wall of the housing 110, or the inner wall of the housing 110 may be roughened.

[0028] The whiteboard 120 is located inside the housing 110. The whiteboard 120 can be used for whiteboard detection of the image acquisition device 2. In some embodiments, the whiteboard 120 includes a flat white plate. When the light source 140 is on, the image acquisition device 2 acquires an image of the white plate and performs detection and analysis on the image to determine the quality of the image acquisition device 2. Preferably, in some embodiments, the whiteboard 120 can also be used for blackboard detection of the image acquisition device 2. When the light source 140 is off, the image acquisition device 2 acquires an image of the white plate without illumination and performs detection and analysis on the image to determine the quality of the image acquisition device 2. Whiteboard detection and blackboard detection can be used to detect whether the image acquisition device 2 has dead pixels or black spots.

[0029] The image card unit 130 is located within the housing 110. The image card unit 130 can be used for image card detection of the image acquisition unit 2. For example... Figure 2B As shown, in some embodiments, the pattern unit 130 includes a pattern 131, the surface of which has a preset pattern, such as stripes, grids, dot matrix, other preset patterns, or combinations of preset patterns. Pattern detection can be used to detect the MTF (Modulation Transfer Function) of the image acquisition unit 2.

[0030] The light source 140 is located inside the housing 110, and its on / off state is controlled. The light source 140 can cooperate with the whiteboard 120 and the image card unit 130 to provide various detection items for the image acquisition device 2, such as whiteboard detection, blackboard detection, and image card detection in the aforementioned embodiments. Specifically, in some embodiments, when the light source 140 is on, whiteboard detection and image card detection can be performed on the image acquisition device 2. When the light source 140 is off, blackboard detection can be performed on the image acquisition device 2. In some embodiments, the on / off state of the light source 140 can be manually controlled by an operator, for example, by the operator selecting the corresponding detection item according to actual needs. Alternatively, in some embodiments, the on / off state of the light source 140 can be controlled by an automated program to sequentially complete multiple detection items for the image acquisition device 2.

[0031] Preferably, the light source 140 includes a light-diffusing element, and the light source 140 emits light to form a uniform light field, reducing the impact of uneven light field distribution on the detection quality of the image acquisition device 2. Specifically, the light source 140 includes a light-emitting diode and a light-diffusing plate, with the light-diffusing plate disposed downstream of the light-emitting diode's optical path. In some embodiments, the light source 140 can be substantially configured as a light box.

[0032] In some embodiments, the light source 140 is positioned at a fixed location within the housing 110, which helps to maintain stable lighting conditions during multiple detection processes of the image acquisition unit 2, and when detecting multiple image acquisition units 2, thereby improving the accuracy and consistency of the detection. In some embodiments, the light source 140 is positioned on the side of the image card unit 130 away from the light-transmitting portion 111, or the light source 140 is positioned on the inner sidewall of the housing near the light-transmitting portion 111. In some embodiments, the light source can also be positioned on the side of the whiteboard away from the light-transmitting portion, serving as a backlight for the whiteboard when performing whiteboard detection on the image acquisition unit. Alternatively, in some embodiments, the detection unit includes two sets of light sources, each corresponding to the whiteboard and the image card unit respectively, and each set of light sources is controlled independently.

[0033] In some embodiments, the light source is disposed around the periphery of the whiteboard or graphic card unit. For example, the light source includes a light strip composed of multiple light-emitting diodes arranged in a strip and surrounding the periphery of the whiteboard or graphic card unit, which can form a ring-shaped illumination area and reduce the impact of light and dark variations on the detection effect of the image acquisition device.

[0034] See Figure 1 The fixture 200 is positioned near the light-transmitting portion 111 and seals the light-transmitting portion 111, which helps to reduce the impact of ambient light on the detection effect and consistency of the image acquisition device 2. In some embodiments, for example, the junction of the fixture 200 and the light-transmitting portion 111 has a sealing structure, or the fixture 200 is integrally formed with the housing 110, and the junction of the fixture 200 and the image acquisition device 2 has a sealing structure.

[0035] The fixture 200 can fix the image acquisition device 2 and keep it in a preset position. In some embodiments, the fixture 200 can be specifically designed according to the specific shape of the image acquisition device 2. For example, the fixture 200 includes a clamp that matches the specific shape of the image acquisition device 2. In some embodiments, the image acquisition device 2 is integrated into an electronic device, and the fixture 200 can fix the electronic device to keep the image acquisition device 2 in a preset position.

[0036] The fixture 200 fixes the image acquisition device 2 so that its position corresponds to the position of the light-transmitting part 111. For example, the lens of the image acquisition device 2 can acquire images of the whiteboard 120 and the card unit 130 inside the housing 110 through the light-transmitting part 111. In some embodiments, the field of view of the image acquisition device 2 extends completely into the interior of the housing 110. With the fixture 200 fixed, the image acquisition device 2 will not acquire images outside the housing 110, which helps to reduce the influence of environmental information on the detection results.

[0037] In this embodiment, at least one of the whiteboard 120 or the graphic unit 130 is movable relative to the light-transmitting portion 111. During the movement of the whiteboard 120 or the graphic unit 130 relative to the light-transmitting portion 111, the position of the whiteboard 120 or the graphic unit 130 within the field of view of the image acquisition unit 2 is changed. By switching between the whiteboard 120 and the graphic unit 130, different items can be detected by the image acquisition unit 2 using a single detection unit 10.

[0038] In some embodiments, an operator can manually control the position of the whiteboard 120 or the graphic unit 130 relative to the light-transmitting portion 111. For example, the whiteboard 120 or the graphic unit 130 can move along a preset track, and the whiteboard 120 or the graphic unit 130 has a positioning structure in the direction of movement, which is beneficial for improving detection accuracy. In some embodiments, at least one of the whiteboard 120 or the graphic unit 130 can be controlled to move relative to the light-transmitting portion 111 by means of automation and a driving device, such as an electric motor, a hydraulic device, etc. Automated control of the movement of the whiteboard 120 or the graphic unit 130 relative to the light-transmitting portion 111 is beneficial for precise control of the stroke and improving detection accuracy.

[0039] In this embodiment, the white card 120 and the image card unit 130 can be used to perform different tests on the image acquisition device 2. At least one of the white card 120 and the image card unit 130 is movable relative to the light-transmitting part 111, enabling automatic switching of the test items of the image acquisition device 2. This embodiment simplifies the test process of the image acquisition device 2 and improves test efficiency and consistency of test standards.

[0040] See Figure 2AAccording to a preferred embodiment of the present invention, the test chamber 100 further includes a lens assembly 150. The lens assembly 150 is disposed inside the housing 110, and the optical axis of the lens assembly 150 is collinear with the optical axis of the image acquisition unit 2. For example, the lens assembly 150 is disposed near the light-transmitting portion 111. After the image acquisition unit 2 is fixed to the light-transmitting portion 111 by the fixture 200, the optical axis of the image acquisition unit 2 coincides with the optical axis of the lens assembly 150. The lens assembly 150 may include one or more lenses, or other optical elements such as filters, apertures, etc. The lens assembly 150 can change the focal length and field of view of the image acquisition unit 2, so that the distance between the image acquisition unit 2 and the whiteboard 120 or the card unit 130 meets a preset optical distance, improving detection accuracy. In some embodiments, the lens assembly 150 can be refocused as needed to make the detection system 1 suitable for different image acquisition units 2.

[0041] See Figure 2A and 2B According to a preferred embodiment of the present invention, the whiteboard 120 and the image card unit 130 are arranged in parallel, and the optical axis of the image acquisition device 2 is perpendicular to the whiteboard 120 and the image card unit 130. In some embodiments, the whiteboard 120 and the image card unit 130 are, for example, both arranged horizontally. The light-transmitting portion 111 is located on the upper surface of the housing 110. After the image acquisition device 2 is fixed by the fixture 200, the optical axis of the image acquisition device 2 is vertical and perpendicular to the whiteboard 120 and the image card unit 130. The perpendicularity of the optical axis of the image acquisition device 2 to the whiteboard 120 and the image card unit 130 helps to reduce the impact of edge distortion of the image acquisition device 2 on the detection effect and improves the detection accuracy.

[0042] In a preferred embodiment of this invention, the test chamber 100 further includes a drive assembly 160. The whiteboard 120 and the drive assembly 160 are fixedly connected, and the drive assembly 160 can drive the whiteboard 120 to move relative to the light-transmitting portion 111.

[0043] In some embodiments, see Figure 2A The drive assembly 160 includes a telescopic rod 161. The whiteboard 120 and the telescopic rod 161 are fixedly connected, and the telescopic rod 161 drives the whiteboard 120 to move within a plane (e.g., a horizontal plane) perpendicular to the optical axis of the image acquisition unit 2. See details... Figure 2A The drive assembly 160 also includes a drive motor 162. The telescopic rod 161 is horizontally positioned, and the drive motor 162 is connected to the telescopic rod 161 and drives the telescopic rod 161 to extend or retract. For example, the drive motor 162 is a linear motor, which drives the whiteboard 120 to move in the horizontal plane through the telescopic rod 161.

[0044] In some embodiments, the driving component may further include a rotating shaft, with the whiteboard connected to the shaft and rotating relative to the light-transmitting portion under the drive of the driving component. Alternatively, in some embodiments, the driving component drives the whiteboard to translate relative to the light-transmitting portion in a horizontal plane.

[0045] According to a preferred embodiment of this utility model, the driving component can move the whiteboard between a first position and a second position. When the whiteboard is in the first position, the area covered by the whiteboard is greater than or equal to the field of view of the image acquisition device in a preset pose. In other words, when the whiteboard is in the first position, the field of view of the image acquisition device is filled by the whiteboard, and the image acquisition device can only acquire an image of the whiteboard, allowing for whiteboard detection or blackboard detection based on the acquired image. Specifically, for example, the telescopic rod extends to a certain length, and the whiteboard is in the first position.

[0046] When the whiteboard is in the second position, it is completely outside the field of view of the image acquisition unit in its preset pose. In other words, when the whiteboard is in the second position, the image acquired by the image acquisition unit does not include the whiteboard, thus avoiding interference from the whiteboard when the image acquisition unit is performing other inspections. Specifically, for example, when the telescopic pole is retracted to a certain length, the whiteboard is in the second position.

[0047] See Figure 2A and Figure 2B Furthermore, according to a preferred embodiment of the present invention, the whiteboard 120 is disposed near the light-transmitting portion 111, and the graphic unit 130 is located on the side of the whiteboard 120 away from the light-transmitting portion 111. When the whiteboard 120 is in the first position, the whiteboard 120 blocks the end of the light-transmitting portion 111 facing the interior of the housing 110. Preferably, the whiteboard 120 is close to the lens assembly 160. The field of view of the image acquisition device 2 is covered by the whiteboard 120. The graphic unit 130 does not affect the image acquisition device 2 from performing whiteboard detection or blackboard detection.

[0048] When the whiteboard 120 is in the second position, the whiteboard 120 avoids the light-transmitting part 111 or the lens assembly 160, and the image card unit 130 is within the field of view of the image acquisition device 2. The image acquisition device 2 can acquire the image of the image card 131 without being interfered with by the whiteboard 120, and can perform image card detection on the image acquisition device 2.

[0049] According to a preferred embodiment of the present invention, the image card unit 130 is movable relative to the light-transmitting portion 111 in a direction parallel to the optical axis of the image acquisition device 2. For example, in some embodiments, the fixture 200 fixes the image acquisition device 2 so that the optical axis of the image acquisition device 2 extends in a vertical direction, and the image card unit 130 is configured to move in a vertical direction, moving closer to or further away from the image acquisition device 2, which can meet different detection requirements of the image acquisition device 2.

[0050] According to a preferred embodiment of the present invention, see [link to preferred embodiment]. Figure 2B The test chamber 100 also includes a screw 170, a guide rod 180, and a drive unit 190.

[0051] The screw 170 is arranged parallel to the optical axis of the image acquisition unit 2, and the image card unit 130 can move along the direction of the screw 170, moving closer to or away from the image acquisition unit 2. For example, in some embodiments, the fixture 200 fixes the image acquisition unit 2 so that the optical axis of the image acquisition unit 2 extends vertically, and the screw 170 is arranged vertically. The outer periphery of the screw 170 is threaded. In some embodiments, the test box 100 includes a plurality of screws 170, which are distributed around the circumference of the image card unit 130 to reduce the risk of the image card unit 130 tilting during movement.

[0052] The guide rod 180 is arranged parallel to the screw 170. The guide rod 180 has no threads on its surface and can be used to guide the movement direction of the chart unit 130, reducing the risk of the chart unit 130 tilting. In some embodiments, the test box 100 includes multiple guide rods 180, which helps improve the stability of the chart unit 130 during movement.

[0053] The drive unit 190 is driven by the screw 170, for example... Figure 3 The drive unit 190 shown includes a motor 191 and a transmission belt 192. The motor 191 drives the screw 170 to rotate via the transmission belt 192. The image card unit 130 is movably sleeved on the screw 170 and the guide rod 180. For example, the image card unit 130 includes a frame 132, which has a threaded hole at the position corresponding to the screw 170 and a through hole at the position corresponding to the guide rod 180. When the drive unit 190 drives the screw 170 to rotate, the image card unit 130 moves along the screw 170, moving closer to or away from the image acquisition unit 2.

[0054] In some embodiments, the image card unit 130 includes a detachable image card 131. For example, the image card unit 130 also includes a frame 132, within which the image card 131 is detachably disposed. In some embodiments, different detections can be performed on the image acquisition device 2, or different image acquisition devices 2 can be detected, by replacing the image card 131.

[0055] According to a preferred embodiment of the present invention, the whiteboard 120 is detachably disposed within the housing 110. For example, for some image acquisition devices 2, whiteboard detection is not required, and the whiteboard 120 can be removed to simplify the detection process. Alternatively, different image acquisition devices 2 have different field of view ranges, and whiteboards 120 of corresponding sizes can be replaced to meet different detection requirements.

[0056] See Figure 4 According to a preferred embodiment of the present invention, the detection system 1 further includes a control system 20 and a display device 30. The control system 20 is signal-connected to the image acquisition device 2; for example, the control system 20 can control the image acquisition device 2 to start and acquire images from a whiteboard or drawing card. The display device 30 is signal-connected to the control system 20; the display device 30 can receive signals from the control system 20 and display the images acquired by the image acquisition device 2, or display the analysis results of the images acquired by the image acquisition device 2.

[0057] In some embodiments, the detection system 1 includes multiple detection units 10. These multiple detection units 10 may share the same control system 20 and display device 30, or they may each include a separate control system 20 and display device 30. Specifically, in some embodiments, the control system 20 is integrated into the computer 21. It may be a pre-set program, or it may receive instructions from the operator and output corresponding control signals to control the image acquisition unit 2 to start acquiring images from the whiteboard or drawing card. See also... Figure 1 The display device 30 includes, for example, a display screen. The control system 20 is signal-connected to the display device 30 and can display the images acquired by the image acquisition device 2 on the display screen. Furthermore, in some embodiments, the control system 20 can also integrate the function of analyzing the images acquired by the image acquisition device 2, for example, by acquiring information such as the color, grayscale, and brightness of the image to determine the quality of the image acquisition device 2. In some embodiments, the control system 20 can display the analysis results of the images acquired by the image acquisition device 2 through the display device 30, for example, marking abnormal dead pixels or dead spots in the displayed image.

[0058] Finally, it should be noted that the above descriptions are merely embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detection system, characterized in that, For detecting an image acquisition device, the detection system includes at least one detection unit, the detection unit comprising: Test chamber, the test chamber comprising: The outer casing has a light-transmitting portion on one side, and the portion of the outer casing other than the light-transmitting portion is closed. Whiteboard, the whiteboard being located inside the housing; The drawing card unit is located inside the housing; A light source, located inside the housing, is controllable to be turned on or off; A fixture is provided to enclose the light-transmitting part. The fixture fixes the image acquisition device in a preset position, and the position of the image acquisition device corresponds to the position of the light-transmitting part. In this embodiment, at least one of the whiteboard or the graphic card unit is movable relative to the light-transmitting portion.

2. The detection system according to claim 1, characterized in that, The light source is located on the outer periphery of the whiteboard or the graphic unit; or... The light source is located on the side of the whiteboard or the graphic unit away from the light-transmitting part.

3. The detection system according to claim 1, characterized in that, The test chamber also includes: A lens assembly is disposed within the housing, and the optical axis of the lens assembly is collinear with the optical axis of the image acquisition unit.

4. The detection system according to claim 1, characterized in that, The whiteboard and the image card unit are arranged in parallel, and the optical axis of the image acquisition device is perpendicular to the whiteboard and the image card unit.

5. The detection system according to claim 4, characterized in that, The test chamber also includes: A driving component is provided, wherein the whiteboard is fixedly connected to the driving component, and the driving component drives the whiteboard to move relative to the light-transmitting part.

6. The detection system according to claim 5, characterized in that, The driving assembly includes a telescopic rod, and the whiteboard is fixedly connected to the telescopic rod. The telescopic rod drives the whiteboard to move in a plane perpendicular to the optical axis of the image acquisition device.

7. The detection system according to claim 5 or 6, characterized in that, The driving component drives the whiteboard to move between a first position and a second position; when the whiteboard is in the first position, the area covered by the whiteboard is greater than or equal to the field of view of the image acquisition device in a preset pose; when the whiteboard is in the second position, the whiteboard is completely out of the field of view of the image acquisition device in the preset pose.

8. The detection system according to any one of claims 4-6, characterized in that, The image card unit is movable relative to the light-transmitting part in a direction parallel to the optical axis of the image acquisition device; the image card unit includes a detachable image card, which has a preset pattern.

9. The detection system according to claim 8, characterized in that, The test chamber also includes: A screw, wherein the screw is arranged parallel to the optical axis of the image acquisition device; A guide rod, which is arranged parallel to the screw; A driving device is connected to the screw drive. The drawing card unit is movably mounted on the screw and the guide rod, and the driving device drives the drawing card unit to move along the guide rod.

10. The detection system according to any one of claims 1-6, characterized in that, The detection system also includes: A control system, which is signal-connected to the image acquisition unit; A display device, wherein the display device is signal-connected to the control system; The control system controls the image acquisition device to acquire images, and the display device displays the images and / or displays the analysis results of the images.

Images