Image acquisition device

Abstract

The application relates to the imaging technical field, in particular to a light passing assembly, a setting method of the light passing assembly and an image acquisition device. The application separates the light passing holes on the surface of the light filter by designing a separation layer, and the light enters and exits a matched camera through a light passing hole, so that the interference between various lights on the surface of the light filter and various cameras of the depth camera is reduced, and the image quality is improved. Through the design, the required installation parallelism of the depth camera and the light filter is reduced, the camera does not need to be close to the light filter, the distance between the camera and the light filter can be a relatively large distance, the required part machining precision is greatly reduced, and the machining and installation costs are greatly reduced.

Description

Technical Field

[0001] This application relates to the field of imaging technology, and more specifically, to an optical transmission component, a method for setting up the optical transmission component, and an image acquisition device. Background Technology

[0002] The statements in this section are merely background information related to this application and do not necessarily constitute prior art.

[0003] Depth images, also known as range images, are images that use the distance (depth) from the image acquisition device to various points in the scene as pixel values. They directly reflect the geometry of the visible surface of objects. Depth cameras can measure depth and provide a better perception of the surrounding environment and its changes, making them widely used. When shooting outdoors, the shooting device is exposed to complex weather conditions. Rain and dust can enter the device, potentially damaging the camera module or causing image distortion. Additionally, images captured when insects such as flies, ants, etc., land on the filter can affect image quality. Insects moving on the filter for extended periods can also leave persistent tracks or dirt marks. High humidity or large temperature differences between day and night can cause condensation or moisture on the filter. All of these conditions can obstruct the view, preventing image capture or resulting in low-quality images that negatively impact subsequent image processing. Summary of the Invention

[0004] In view of the above, this application provides an optical transmission component, a setting method, and an image acquisition device to solve one or more technical problems in the related art or to provide technical support for solving the technical problems. This application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide an optical transmission component, the optical transmission component comprising:

[0006] Filters;

[0007] A partition layer, wherein the filter is located on the outside of the partition layer and the camera is located on the inside of the partition layer;

[0008] A light-permeable aperture extends through the partition layer, with the outer side of the light-permeable aperture connected to the filter, and the camera located inside the light-permeable aperture.

[0009] Each camera in the camera is provided with a corresponding light-transmitting hole, and the light is optically isolated between each light-transmitting hole. Light enters and exits a corresponding camera through a light-transmitting hole.

[0010] In some embodiments, the filter is bonded to the partition layer, and the light-permeable hole penetrates the partition layer;

[0011] Preferably, the filter is bonded to the partition layer;

[0012] Preferably, the filter is bonded to the partition layer with double-sided adhesive, and the double-sided adhesive is provided with through holes, which are part of the light transmission hole;

[0013] Preferably, the hardness of the partition layer is greater than that of the filter.

[0014] In some embodiments, the optical transmission component further includes:

[0015] A heating element is arranged between the filter and the partition layer, and the light transmission hole passes through the heating element and the partition layer;

[0016] Preferably, the filter is bonded to the heating element, and the heating element is bonded to the partition layer;

[0017] Preferably, the filter and the heating element are bonded together with double-sided adhesive, and the heating element and the partition layer are bonded together with double-sided adhesive. Each double-sided adhesive has a through hole, and the through hole is part of the light transmission hole.

[0018] Preferably, the hardness of the partition layer is greater than that of the filter and the heating element.

[0019] In some embodiments, the optical transmission component further includes:

[0020] A heat insulation layer is disposed between the heating element and the partition layer, and the light-perforated hole penetrates the heating element, the heat insulation layer, and the partition layer;

[0021] Preferably, the filter is bonded to the heating element, the heating element is bonded to the heat insulation layer, and the heat insulation layer is bonded to the partition layer;

[0022] Preferably, the filter and the heating element are bonded together with double-sided adhesive, the heating element and the heat insulation layer are bonded together with double-sided adhesive, and the heat insulation layer and the partition layer are bonded together with double-sided adhesive. Each double-sided adhesive has a through hole, which is part of the light transmission hole.

[0023] In some embodiments, the hardness of the partition layer is greater than that of the filter, the heating element, and the heat insulation layer.

[0024] In some embodiments, a first through groove is provided on the partition layer, the first through groove accommodating a first wire end, the first wire end being connected to the heating element.

[0025] In some embodiments, the optical transmission component further includes:

[0026] Temperature sensor;

[0027] A second through slot is provided on the partition layer, the temperature sensor is placed in the second through slot and connected to the heating element, and the second through slot accommodates the end of a second wire connected to the temperature sensor.

[0028] In some embodiments, the optical transmission component further includes:

[0029] Mounting plate, wherein the filter is attached to the inner side of the mounting plate;

[0030] The housing of the image acquisition device includes a first panel with a window formed thereon, and a mounting plate larger than the window, which covers the outside of the window and is connected to the outside of the first panel.

[0031] Preferably, the hardness of the mounting plate and the hardness of the partition layer are both greater than the hardness of the middle portion between the mounting plate and the partition layer, so that the mounting plate and the partition layer can clamp the middle portion.

[0032] In some embodiments, the middle portion is smaller than or equal to the window, the partition layer is smaller than or equal to the window, and the mounting plate is larger than the window, such that the middle portion and the partition layer pass through the window and are placed inside the housing, and the mounting plate covers the outside of the window and is connected to the outside of the housing where the window is located.

[0033] Secondly, embodiments of this application provide a method for setting up an optical transmission component according to any of the technical solutions in the first aspect, the method comprising:

[0034] A partition layer is provided between the filter and the camera; wherein the filter is located on the outside of the partition layer and the camera is located on the inside of the partition layer;

[0035] A light-passing aperture is provided; wherein the light-passing aperture penetrates the partition layer, the outer side of the light-passing aperture is connected to the filter, and the camera is located inside the light-passing aperture;

[0036] The light-passing aperture is configured with the camera; wherein each camera lens of the camera is provided with a matching light-passing aperture, and the light-passing apertures are optically isolated from each other, and light enters and exits a matching camera lens through a light-passing aperture.

[0037] Thirdly, embodiments of this application provide an image acquisition device, which includes:

[0038] The housing includes a first panel on which a window is formed;

[0039] The camera assembly is housed within the housing;

[0040] The optical transmission component described in any of the technical solutions in the first aspect is connected to the window;

[0041] The camera assembly further includes: a camera mounting plate and a circuit mounting plate; one side of the camera mounting plate is used to fix the camera, and the other side is used to connect to one side of the circuit mounting plate; the other side of the circuit mounting plate is used to fix a circuit board; a gap is provided between the camera mounting plate and the circuit mounting plate.

[0042] Each camera in the camera is provided with a corresponding light-transmitting hole, and the light is optically isolated between each light-transmitting hole. Light enters and exits a corresponding camera through a light-transmitting hole.

[0043] In some embodiments, a ribbon cable fixing member is formed on the circuit fixing plate, and the ribbon cable fixing member presses the ribbon cable onto the circuit fixing plate;

[0044] Preferably, it further includes an elastic pad, the two sides of which are respectively attached to the ribbon cable and the ribbon cable fixing member;

[0045] Preferably, the bottom of the ribbon cable fixing component is connected to the circuit fixing plate via a column, and the column is used to adjust the size of the gap between the ribbon cable fixing component and the camera circuit board.

[0046] In some embodiments, the camera component further includes:

[0047] A support base having a hollow area, the hollow area being larger than or equal to the window;

[0048] The inner side of the support base is connected to the camera mounting plate, and the outer side of the support base is connected to the inner side of the first panel.

[0049] The camera mounting plate is larger than the window, and when the camera mounting plate is in contact with the support base, the camera is accommodated within the hollow area.

[0050] In some embodiments, the support base includes: a first support base and a second support base connected to each other, wherein the outer side of the first support base is connected to the inner side of the first panel, and the second support base is connected to the camera mounting plate;

[0051] The first screw passes through the first support base and the second support base in sequence and is connected to the camera fixing plate. The first nut that matches the first screw is set in the nut mounting groove, which is formed on the first support base.

[0052] Preferably, the second screw passes through the camera mounting plate, the second support base, and the first support base in sequence, and is connected to the inner side of the first panel.

[0053] In some embodiments, the image acquisition device further includes:

[0054] A light-emitting component, comprising a lamp post, a light-transmitting plate, and a lamp post fixing plate;

[0055] The light-transmitting plate is disposed on the housing, the light-transmitting hole passes through the lamp post fixing plate and the housing, the light-transmitting hole is located in the area of ​​the light-transmitting plate, the lamp post fixing plate is connected to the inner side of the housing, and the lamp post is disposed inside the housing and accommodated in the light-transmitting hole;

[0056] Preferably, the outer surface of the lamp post is provided with threads, the lamp post is threadedly connected to the light-transmitting hole, and a nut is connected to the lamp post;

[0057] Preferably, the light-transmitting plate is attached to the outer surface of the housing; preferably, the light-transmitting plate is bonded to the housing with double-sided adhesive.

[0058] Preferably, the camera assembly further includes a support base with a notch, at which the light-emitting component is disposed.

[0059] In some embodiments, the image acquisition device further includes:

[0060] A fixing column, which passes through the first support base and the second support base in sequence, and extends out of the second support base;

[0061] The housing includes a cover corresponding to the first panel, and bolts pass through the cover and are connected to the fixing post to secure the cover.

[0062] In some embodiments, the image acquisition device further includes:

[0063] The heat sink is connected to the housing.

[0064] The housing fixing plate includes an enlarged portion and a reduced portion, the enlarged portion being connected to the housing, and the reduced portion being attached to the heat dissipation plate.

[0065] In some embodiments, the image acquisition device further includes:

[0066] A connector used for network or electrical connections;

[0067] The housing is provided with a connection hole, and the connector is located at the connection hole;

[0068] Fasteners connect the connector to the housing, and an O-ring is disposed between the fastener and the housing;

[0069] Preferably, a sealing ring is fitted onto the connector, and the sealing ring is located between the connector and the housing;

[0070] Preferably, the sealing gasket is disposed between the connector and the housing, or on the outside of the connector; more preferably, the sealing gasket is also connected to a cap, the cap being used to close the connector.

[0071] The beneficial effects of some embodiments of this application are:

[0072] This application uses a partition layer and light-perforated holes to create a barrier on the surface of the filter. Light enters and exits through a single light-perforated hole for each matched camera, reducing interference from various light sources on the filter surface to the different cameras of the depth camera and improving image quality. This design also reduces the required parallelism between the depth camera and the filter, eliminating the need for the camera to be flush against the filter. The distance between the camera and the filter can be increased significantly, greatly reducing the required precision in component manufacturing and significantly lowering manufacturing and installation costs.

[0073] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Those skilled in the art will gain a greater understanding of the above and other objects, advantages, and features of this application from the following detailed description of specific embodiments of this application in conjunction with the accompanying drawings. Attached Figure Description

[0074] The following sections will describe some specific embodiments of this application in detail by way of example and not limitation, with reference to the accompanying drawings. The drawings are provided for a better understanding of the present invention and do not constitute a limitation thereof. The same reference numerals in the drawings indicate the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0075] Figure 1 This is a schematic diagram of the structure of an image acquisition device according to some embodiments of this application;

[0076] Figure 2 This is a schematic diagram of the structure of an image acquisition device according to other embodiments of this application;

[0077] Figure 3 This is a schematic diagram of the interior of the housing in some embodiments of this application;

[0078] Figure 4 This is a schematic diagram showing the connection relationship between the camera assembly and the housing in some embodiments of this application, where only a portion of the housing is shown;

[0079] Figure 5 This is a schematic diagram showing the connection relationship between the optical transmission component and the housing in some embodiments of this application, where only a portion of the housing is shown;

[0080] Figure 6 This is a schematic diagram showing the connection relationship between the optical transmission component and the housing in some other embodiments of this application;

[0081] Figure 7 This is a schematic diagram of the structure of the camera assembly in some embodiments of this application;

[0082] Figure 8 This is a schematic diagram of the camera assembly structure in some other embodiments of this application;

[0083] Figure 9 This is a schematic diagram of the camera mounting plate in some embodiments of this application;

[0084] Figure 10 This is a schematic diagram of the circuit mounting board structure of some embodiments of this application;

[0085] Figure 11 This is a schematic diagram of the structure of the cover in some embodiments of this application;

[0086] Figure 12 This is a schematic diagram showing the connection relationship between the cover, the housing fixing plate, and the heat sink in some embodiments of this application;

[0087] Figure 13 This is a schematic diagram showing the connection relationship between the connector and the housing in some embodiments of this application;

[0088] Figure 14 This is a schematic diagram showing the connection relationship between the connector and the housing in some other embodiments of this application;

[0089] Figure 15 This is a flowchart illustrating the optical transmission component setting method of some embodiments of this application.

[0090] Explanation of key component symbols:

[0091] 01-Image acquisition device;

[0092] 10-Optical transmission assembly, 11-Filter, 12-Heating element, 121-First wire end, 13-Insulation layer, 14-Partition layer, 141-First through slot, 142-Second through slot, 15-Temperature sensor, 151-Second wire end, 16-Mounting plate;

[0093] 20-Camera assembly, 21-Camera, 211-First camera, 212-Second camera, 213-Third camera, 22-First support, 23-Second support, 24-Cable clamping component, 25-Bundling wire, 26-Column, 27-Circuit fixing plate, 271-Circuit board, 28-Camera fixing plate;

[0094] 30-Housing shell, 31-First panel, 32-Cover, 33-Connecting hole, 34-Housing fixing plate, 35-Heat dissipation plate, 36-Fixing post;

[0095] 40-Connector, 41-Network cable connector, 42-O-ring, 43-Sealing ring, 44-Sealing gasket, 45-Cap;

[0096] 51-Lamp post, 52-Lamp post fixing plate, 53-Light-transmitting plate;

[0097] 60-Double-sided tape. Detailed Implementation

[0098] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings, including many details of the embodiments of this application to aid understanding. The described embodiments are only possible technical implementations of this application and should be considered merely exemplary, not all possible implementations. Similarly, for clarity and conciseness, some descriptions of well-known functions and structures are omitted in the following description.

[0099] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate, and the objects distinguished by "first," "second," etc., are generally of the same class, not limited in number; for example, a first object can be one or more. In this application, "or / and," "and / or," and "or" indicate that the object is at least one of them, and "or" indicates that the object is one of them. It should be understood that the terms "comprising" and "including" used in the specification and claims of this application indicate the presence of the described feature, integral, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0100] In this application, the direction toward the outside of the housing 30 is referred to as the "outer side," and the direction toward the inside of the housing 30 is referred to as the "inner side." This is primarily for the purpose of better describing this application and its embodiments, and is not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation. The term "a plurality of" means two or more.

[0101] In existing technologies, the installation requirements for depth cameras are relatively high. The depth camera and filter 11 need to be perfectly parallel, and the camera lens of the depth camera must be very close to the filter 11 to achieve the required image quality. This installation requirement leads to degraded images during actual shooting, which are difficult to adjust, thus placing high demands on the manufacturing of parts and resulting in higher costs. The inventors discovered in their practical work that the cause of image degradation might be interference between the various light rays on the surface of the filter 11 and the different cameras of the depth camera. The inventors subsequently verified this conclusion through testing and experiments. Similarly, preventing light interference between the different cameras in a conventional camera 21 can also improve image quality. This article uses a depth camera and a conventional camera 21 as examples for illustration.

[0102] Exemplary technical solutions

[0103] Based on the above concept and verification, according to the first aspect of this application, an optical transmission component 10 is provided, the optical transmission component 10 comprising:

[0104] Filter 11; Filter 11 is disposed in front of the camera, i.e., on the outer side. The working principle of filter 11 is to absorb certain wavelengths. On the one hand, it can make the subject stand out; on the other hand, for example, the infrared filter 11 of a mobile phone camera can filter out infrared light greater than 700nm, allowing visible light within 700nm to be imaged and processed in post-processing. Infrared light will not participate in post-processing, reducing its impact on the calculation results. In some embodiments, filter 11 is made of plastic or glass sheet with added special dyes. A suitable filter 11 can be selected according to the subject to be photographed to improve image quality.

[0105] The partition layer 14 has the filter 11 located on the outside of the partition layer 14 and the camera 21 located on the inside of the partition layer 14.

[0106] A light-passing aperture extends through the partition layer 14, with the outer side of the light-passing aperture connected to the filter 11, and the camera 21 located inside the light-passing aperture;

[0107] Each camera in the camera 21 is provided with a corresponding optical aperture. Optical barriers exist between the optical apertures, allowing light to enter and exit a single camera through one optical aperture. In this document, "optical barrier" is defined as light rays within each optical aperture not communicating with each other; light rays enter and exit a single camera through one optical aperture, rather than entering and exiting other cameras.

[0108] In the figure, there is one filter 11 and three light-passing holes. In other embodiments, the number of filters 11, light-passing holes, and cameras can be the same. Taking a depth camera as an example, the camera in the middle of the depth camera emits a laser. The laser is emitted in a cone-shaped range and may interfere with other areas of the filter through various propagation paths such as reflection, or may be reflected onto the other two cameras of the depth camera, significantly affecting the image quality. Other uncertain light rays will also interfere in this way. This application designs a partition layer 14 and light-passing holes to create a partition on the surface of the filter 11. Light enters and exits through one light-passing hole for one matching camera, reducing the interference of various light rays on the surface of the filter 11 on the various cameras of the depth camera and improving image quality. Through this design, the required parallelism between the depth camera and the filter 11 is reduced, the camera does not need to be close to the filter 11, the distance between the camera and the filter 11 can be made relatively large, the required component processing precision is greatly reduced, and the processing and installation costs are greatly reduced.

[0109] In the figure, the holes (not limited to circular) on the partition layer 14 are part of the light-passing holes, corresponding to the various cameras of the camera, and are brought forward to the filter 11 to block light interference between the various cameras.

[0110] In some embodiments, the optical transmission assembly 10 includes only a filter 11 and a partition layer 14, wherein the filter 11 and the partition layer 14 are bonded together, and the optical transmission hole penetrates the partition layer 14. For example, the filter 11 and the partition layer 14 are adhesively bonded together. In some specific embodiments, the filter 11 and the partition layer 14 are bonded together with double-sided adhesive 60, which has a through hole, a portion of the optical transmission hole. For example, the partition layer 14 has a higher hardness than the filter 11, allowing the filter 11 to be smoothly bonded to the partition layer 14.

[0111] In some embodiments, the optical transmission assembly 10 includes a filter 11, a partition layer 14, and a heating element 12. The heating element 12 is disposed between the filter 11 and the partition layer 14, and the optical aperture passes through the heating element 12 and the partition layer 14. The heating element 12 is shaped to match the filter 11, so that the filter 11 can be uniformly heated by the heating element 12, reducing uneven temperature distribution across the filter 11. This arrangement improves the accuracy of the temperature measured by the temperature sensor 15. The heating element 12 increases the surface temperature of the filter 11, preventing condensation or moisture from forming on the filter 11. The higher surface temperature of the filter 11 reduces the time that insects such as mosquitoes, flies, and ants spend on the filter 11, reducing the traces they leave on the filter 11 and improving the quality of the captured image.

[0112] In some embodiments, the filter 11 is bonded to the heating element 12, and the heating element 12 is bonded to the partition layer 14. In some specific embodiments, the filter 11 and the heating element 12 are bonded together with double-sided adhesive 60, and the heating element 12 and the partition layer 14 are bonded together with double-sided adhesive 60. Each double-sided adhesive 60 has a through hole, which is part of the light transmission hole. For example, the partition layer 14 has a higher hardness than the filter 11 and the heating element 12, thus forming a support to smoothly adhere the filter 11 and the heating element 12 to the partition layer 14. The heating element 12 is bonded to the filter 11. Upon temperature increase, the heating element 12 tends to open, generally more than the filter 11. When the flatness and rigidity of the heating element 12 are insufficient, its opening can easily cause the filter 11 to break, especially during use, where repeated heating often results in breakage. In designs using double-sided adhesive 60, without considering the partition layer 14, applying pressure to the heating element 12 may lead to adhesive failure or filter 11 breakage. The partition layer 14, bonded to the heating element 12, restricts the opening of the heating element 12, reducing or preventing breakage of the filter 11 due to its opening. Furthermore, the partition layer 14 can also be fixedly connected to the housing 30, for example, by snapping the inner side of the partition layer 14 into the housing 30, further restricting its opening and thus limiting the opening of the heating element 12. Furthermore, compared to methods such as using fasteners, the bonding between the filter 11 and the heating element 12 is flexible and without rigid pre-tightening force, for example, using double-sided tape 60. The deformation of the filter 11 caused by the opening of the heating element 12 is small, which can also prevent the filter 11 from breaking.

[0113] In some embodiments shown in the figures, the optical transmission assembly 10 includes a filter 11, a partition layer 14, a heating element 12, and a heat insulation layer 13. The heat insulation layer 13 is disposed between the heating element 12 and the partition layer 14, and the optical transmission hole passes through the heating element 12, the heat insulation layer 13, and the partition layer 14. The heat insulation layer 13 can reduce the heat transfer from the high-temperature heating element 12 to the low-temperature partition layer 14, preventing thermal damage to the camera 21 located at the partition layer 14. Furthermore, reducing the heat transfer from the high-temperature heating element 12 to the partition layer 14 can also ensure the normal operating temperature of the camera. For example, the filter 11 is bonded to the heating element 12, the heating element 12 is bonded to the heat insulation layer 13, and the heat insulation layer 13 is bonded to the partition layer 14. In some specific embodiments, the filter 11 and the heating element 12 are bonded together with double-sided adhesive 60, the heating element 12 and the heat insulation layer 13 are bonded together with double-sided adhesive 60, and the heat insulation layer 13 and the partition layer 14 are bonded together with double-sided adhesive 60. Each double-sided adhesive 60 has a through hole, which is part of the light transmission hole. In other specific embodiments, the heat insulation layer 13 is, for example, tape, such as double-sided adhesive 60. The partition layer 14 has a higher hardness than the filter 11, the heating element 12, and the heat insulation layer 13, thus forming a support to smoothly adhere the filter 11, the heating element 12, and the heat insulation layer 13 to the partition layer 14. In the figure, the heat insulation layer 13 and the partition layer 14 have the same shape and size, and the heat insulation layer 13 is bonded to the heating element 12. Figure 5 In the illustrated embodiment, the partition layer 14, heating element 12, and heat insulation layer 13 are all located inside the window, while the filter 11 is located outside the window. The sides of the partition layer 14, heating element 12, and heat insulation layer 13 are connected to the inside of the window via adhesive. This restricts the opening of the partition layer 14, heating element 12, and heat insulation layer 13, preventing the heating element 12 from separating from the filter 11. The flexible connection between the filter 11 and the heating element 12 through bonding also reduces the opening of the filter 11 caused by the heating element 12 opening when heated. The mounting plate 16 is designed so that the sides of the partition layer 14, heating element 12, and heat insulation layer 13 are connected to the inside of the window via adhesive, providing conditions for adhesive application and serving a supporting role during adhesive application.

[0114] exist Figure 5 and Figure 6In some embodiments shown, a first through-slot 141 is formed on the partition layer 14, which accommodates a first wire end 121 connected to the heating element 12. A second through-slot 142 is formed on the partition layer 14, in which the temperature sensor 15 of the optical transmission component 10 is placed and connected to the heating element 12. The second through-slot 142 accommodates a second wire end 151 connected to the temperature sensor 15. In this embodiment, by leaving the first through-slot 141 and the second through-slot 142 with groove-shaped features on the partition layer 14, and applying adhesive within the grooves, the first wire end 121, the second wire end 151, and the temperature sensor 15 are fixed, preventing movement of the first wire end 121, the second wire end 151, and the temperature sensor 15. The heating element 12 currently in use has a persistent problem of the wires easily breaking at their roots. The thickness of the partition layer 14 should be greater than that of the first wire end 121, the second wire end 151, and the temperature sensor 15 to provide protection and prevent the wires from breaking at their roots. The temperature sensor 15 is glued to the second through groove 142 and connected to the heating element 12, which also prevents stress concentration at the connection point between the temperature sensor 15 and the heating element 12.

[0115] The partition layer 14 of this application simultaneously serves to prevent the heating element 12 from opening, and to protect the first wire end 121, the second wire end 151, and the temperature sensor 15.

[0116] exist Figure 1 , Figure 4 , Figure 5 , Figure 6 In the illustrated embodiment, the optical transmission assembly 10 further includes a mounting plate 16, with the filter 11 attached to the inner side of the mounting plate 16. The housing 30 of the image acquisition device 01 includes a first panel 31 with a window formed thereon. The mounting plate 16 is larger than the window, covering the outer side of the window and connecting to the outer side of the first panel 31. In some embodiments, the mounting plate 16 is bonded to the first panel 31, for example, with double-sided adhesive 60. The filter 11, the partition layer 14, the heating element 12, and the heat insulation layer 13 extend into the housing 30 through the window of the first panel 31. The mounting plate 16 is sealed to the first panel 31 to prevent water from entering the interior of the housing 30.

[0117] In some embodiments, the hardness of the mounting plate 16 and the hardness of the partition layer 14 are both greater than the hardness of the intermediate portion between the mounting plate 16 and the partition layer 14, so that the mounting plate 16 and the partition layer 14 can clamp the intermediate portion. Specifically, in some embodiments, the intermediate portion is smaller than or equal to the window, the partition layer 14 is smaller than or equal to the window, and the mounting plate 16 is larger than the window, so that the intermediate portion and the partition layer 14 pass through the window and are placed inside the housing 30, and the mounting plate 16 covers the outside of the window and is connected to the outside of the housing 30 where the window is located.

[0118] The middle part can be at least one of a filter 11, a partition layer 14, a heating element 12, and a heat insulation layer 13. The mounting plate 16 and the partition layer 14 together form a clamping structure, which helps to maintain the stability of the shape of the middle part, such as maintaining the flatness of the middle part.

[0119] According to a second aspect of this application, a method for setting up the optical transmission component 10 as described in any of the technical solutions in the first aspect is provided, such as... Figure 15 As shown, the setup methods include:

[0120] S101. A partition layer 14 is provided between the filter 11 and the camera 21; wherein the filter 11 is located outside the partition layer 14, and the camera 21 is located inside the partition layer 14.

[0121] S102. A light-passing hole is provided; wherein the light-passing hole penetrates the partition layer 14, the outer side of the light-passing hole is connected to the filter 11, and the camera 21 is located inside the light-passing hole;

[0122] S103. Configure the light-passing hole and the camera 21; wherein, each camera of the camera 21 is provided with a matching light-passing hole, and the light passes through a light-passing hole to enter and exit a matching camera.

[0123] According to a third aspect of this application, an image acquisition device 01 is provided, the image acquisition device 01 comprising:

[0124] The housing 30 includes a first panel 31 on which a window is formed;

[0125] Camera assembly 20 is disposed within the housing 30;

[0126] The optical transmission component 10 described in any of the technical solutions in the first aspect is connected to the window;

[0127] The camera assembly 20 further includes: a camera mounting plate 28 and a circuit mounting plate 27; one side of the camera mounting plate 28 is used to fix the camera 21, and the other side is used to connect to one side of the circuit mounting plate 27; the other side of the circuit mounting plate 27 is used to fix the circuit board; a gap is provided between the camera mounting plate 28 and the circuit mounting plate 27.

[0128] Each of the cameras in the camera 21 is provided with a corresponding light-transmitting hole, and the light is light-isolated between each of the light-transmitting holes. Light enters and exits a corresponding camera through one of the light-transmitting holes.

[0129] In this application, a gap is provided between the camera mounting plate 28 and the circuit mounting plate 27 to increase heat dissipation performance.

[0130] In some embodiments, the circuit fixing plate 27 is provided with two holes, and the cable tie 25 is used to fix the USB cable through the two holes to prevent the plug from becoming loose.

[0131] In some embodiments, a ribbon cable fixing member is formed on the circuit fixing plate 27. The ribbon cable fixing member presses the ribbon cable onto the circuit fixing plate 27, which can prevent the ribbon cable from moving and increase the connection between the ribbon cable and, for example, a circuit board.

[0132] Preferably, it further includes an elastic pad, the two sides of which are respectively attached to the ribbon cable and the ribbon cable fixing member. That is, the elastic pad is disposed between the ribbon cable and the ribbon cable fixing member. The ribbon cable fixing member presses the ribbon cable firmly through the elastic pad. The setting of the elastic pad makes the ribbon cable evenly stressed and has a certain elasticity, which can prevent the ribbon cable from breaking.

[0133] Preferably, the bottom of the ribbon cable fixing component is connected to the circuit fixing plate 27 via a column 26, the column 26 being used to adjust the size of the gap between the ribbon cable fixing component and the circuit board of the camera 21. For example, increasing or decreasing the gap can correspondingly increase or decrease the heat dissipation performance. When the heat dissipation performance is sufficient, decreasing the gap can correspondingly reduce the thickness of the image acquisition device 01.

[0134] Preferably, the camera mounting plate 28 and the circuit mounting plate 27 are connected by a column 26, and the size of the gap is adjusted by adjusting the height of the column 26.

[0135] exist Figure 4 and Figure 6In the illustrated embodiment, the camera assembly 20 further includes a support base with a hollow area. This hollow area is larger than or equal to the window to prevent obstruction of the window and interference with camera operation. The inner side of the support base is connected to the camera mounting plate 28, and the outer side of the support base is connected to the inner side of the first panel 31. The camera mounting plate 28 is larger than the window, and when it is in contact with the support base, the camera 21 is housed within the hollow area. By adjusting the thickness of the support base, the distance between the cameras (first camera 211, second camera 212, and third camera 213) and the filter 11, as well as the distance between the cameras and the partition layer 14, can be adjusted. In some embodiments, the cameras are tightly attached to the partition layer 14, and the first camera 211, second camera 212, and third camera 213 are each tightly attached to a light-passing hole, reducing interference from various light sources on the surface of the filter 11 to the cameras of the camera 21 and improving image quality.

[0136] The support base includes: a first support base 22 and a second support base 23 connected to each other, in Figure 4 and Figure 6 In the illustrated embodiment, the first support base 22 is located below, and the second support base 23 is located above. The outer side of the first support base 22 is connected to the inner side of the first panel 31, and the second support base 23 is connected to the camera mounting plate 28. A first screw passes through the first support base 22 and the second support base 23 in sequence and connects to the camera mounting plate 28. A first nut that mates with the first screw is disposed in a nut mounting groove to prevent accidental rotation. The nut mounting groove is formed on the first support base 22. Since the camera mounting plate 28 is connected to the circuit mounting plate 27, the first support base 22, the second support base 23, the camera mounting plate 28, the circuit mounting plate 27, and other components fixed to these structures, such as the camera 21, together form an independent, movable, and replaceable camera assembly 20.

[0137] Preferably, the second screw passes sequentially through the camera mounting plate 28, the second support base 23, and the first support base 22, and connects to the inner side of the first panel 31. A second nut, which mates with the second screw, is provided on the camera mounting plate 28. The second screw fixes the independent camera assembly 20 to the housing 30. The camera assembly 20 can be detached from the housing 30 using the second screw and the second nut. The components of the camera assembly 20 can be disassembled using the first screw and the first nut, thereby allowing the replacement of components such as the camera 21.

[0138] exist Figure 1 , Figures 3-6 In the illustrated embodiment, the image acquisition device 01 further includes:

[0139] The light-emitting component includes a lamp post 51, a light-transmitting plate 53, and a lamp post fixing plate 52. For example, the light-transmitting plate 53 can be made of a light-transmitting material such as glass or acrylic.

[0140] The light-transmitting plate 53 is disposed on the housing 30, and the light-transmitting hole passes through the lamp post fixing plate 52 and the housing 30. The light-transmitting hole is located in the area of ​​the light-transmitting plate 53. The lamp post fixing plate 52 is connected to the inner side of the housing 30, for example, it is bonded to the housing 30 with double-sided adhesive 60 to play a waterproof role. The lamp post 51 is disposed inside the housing 30 and accommodated in the light-transmitting hole.

[0141] Preferably, the outer surface of the lamp post 51 is threaded, and the lamp post 51 is threadedly connected to the light-transmitting hole. A nut is connected to the lamp post 51, and the nut is attached to the lamp post fixing plate 52. Preferably, the light-transmitting plate 53 is attached to the outer surface of the housing 30, for example, the light-transmitting plate 53 is bonded to the housing 30 with double-sided adhesive 60. Figure 4 As shown, the support base has a notch, and the light-emitting component is disposed at the notch. The notch reduces the impact on the firmness of the connection between the support base and the housing 30 when the area of ​​the support base is reduced.

[0142] like Figure 3 As shown, the image acquisition device 01 also includes a fixing post 36, which passes through the first support base 22 and the second support base 23 in sequence and extends out of the second support base 23; the housing 30 includes a cover 32 corresponding to the first panel 31, and bolts pass through the cover 32 and are connected to the fixing post 36 to fix the cover 32.

[0143] like Figure 12 As shown, the image acquisition device 01 also includes a heat sink 35 and a housing fixing plate 34. Figure 12 In this configuration, the heat sink 35 is connected to the cover 32 in the housing 30. The housing fixing plate 34 includes an enlarged portion and a reduced portion. The enlarged portion is connected to the housing 30, and the reduced portion is attached to the heat sink 35. This reduces the obstruction of the heat sink 35 by the housing fixing plate 34, thus maintaining the heat dissipation performance of the heat sink 35. In some embodiments, the image acquisition device 01 is used in an outdoor environment, and the image acquisition device 01 should be kept as airtight as possible for heat dissipation. Therefore, this application uses the heat sink 35 instead of opening heat dissipation holes in the housing 30. The housing fixing plate 34 is used to fix the image acquisition device 01 to a bracket or other parts. Figure 11 and Figure 12 In the process, the housing fixing plate 34 is bonded to the cover 32 with double-sided adhesive, and the heat dissipation plate 35 is bonded to the cover 32 with double-sided adhesive. The heat dissipation plate 35 made of metal is set on the plastic housing 30 to increase the heat dissipation effect.

[0144] like Figure 13 , Figure 14 As shown, the image acquisition device 01 also includes a connector 40 for network or electrical connection; for example, the connector can be a network connector or other electrical connector. A connection hole 33 is provided on the housing 30, and the connector 40 is located at the connection hole 33. In some embodiments, the connector 40 extends into the housing 30 through the connection hole 33. Fasteners connect the connector 40 to the housing 30, and an O-ring 42 is disposed between the fastener and the housing 30, serving to seal the fastener and the housing 30. Figure 13 , Figure 14 As shown, a sealing ring 43 is fitted onto the connector 40. The sealing ring 43 is located between the connector 40 and the housing 30, serving to seal the connector 40 and the housing 30. Preferably, a sealing gasket 44 is disposed between the connector 40 and the housing 30. When the sealing gasket 44 and the sealing ring 43 are both disposed, the sealing gasket 44 is tightly attached to the connector 40, and the sealing ring 43 is disposed on the sealing gasket 44. Figure 14 In some embodiments shown, the sealing gasket 44 is disposed on the outside of the connector 40. Figure 13 In some of the embodiments shown, the sealing gasket 44 is also connected to a cap 45 for closing the connector 40.

[0145] The optical transmission component 10 included in the image acquisition device 01 is described in the various technical solutions described in the first aspect.

[0146] In this application, the housing 30, partition layer 14, camera mounting plate 28, and circuit mounting plate 27 can be made of plastic, which can avoid mold and machine tool processing, significantly reduce costs and ensure product quality.

[0147] Exemplary application scenarios

[0148] Large-scale livestock farms have a large number of animals, and the timing of livestock sales is crucial for cost control. Using conventional weighing scales would be labor-intensive, and weighing only individual pigs would be less representative. An image acquisition device 01 is installed on a track-mounted robot. As the robot moves, the image acquisition device 01 captures images of the livestock in each pen from a top-down perspective, allowing the system to estimate the weight of the livestock in each pen based on a background algorithm model. For example, a depth camera communicates with an embedded APP unit in the image processor. The depth camera transmits the captured livestock images to the embedded APP unit. The embedded APP unit and the platform client are connected via a server configured over a network. The server processes the image information acquired from the embedded APP unit using a trained algorithm model and then transmits the resulting weight information to the platform client for management personnel to access the livestock's weight data.

[0149] The embodiments of this application have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and have not been described in detail.

[0150] The above description is merely a partial embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application in any way. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application are also within the scope of protection of this application.

Claims

1. An image acquisition device (01), characterized in that, include: The housing (30) includes a first panel (31) on which a window is formed; A camera assembly (20) is disposed within the housing (30); Optical component (10) is connected to the window; The camera assembly (20) further includes: a camera mounting plate (28) and a circuit mounting plate (27); one side of the camera mounting plate (28) is used to fix the camera (21), and the other side is used to connect to one side of the circuit mounting plate (27); the other side of the circuit mounting plate (27) is used to fix the circuit board (271); a gap is provided between the camera mounting plate (28) and the circuit mounting plate (27); Each camera of the camera (21) is provided with a matching light-passing hole, and the light passes through a light-passing hole to enter and exit a matching camera. The camera assembly (20) further includes: a support base, the support base having a hollow area, the hollow area being greater than or equal to the window; the inner side of the support base is connected to the camera mounting plate (28), and the outer side of the support base is connected to the inner side of the first panel (31); the camera mounting plate (28) is larger than the window, and when the camera mounting plate (28) is in contact with the support base, the camera (21) is accommodated within the hollow area; The support base includes: a first support base (22) and a second support base (23) connected to each other. The outer side of the first support base (22) is connected to the inner side of the first panel (31), and the second support base (23) is connected to the camera mounting plate (28). A first screw passes through the first support base (22) and the second support base (23) in sequence and is connected to the camera mounting plate (28). A first nut that matches the first screw is set in a nut mounting groove, which is formed on the first support base (22). A second screw passes through the camera mounting plate (28), the second support base (23), and the first support base (22) in sequence and is connected to the inner side of the first panel (31). The optical transmission assembly includes: a filter (11); a partition layer (14), wherein the filter (11) is located outside the partition layer (14) and the camera (21) is located inside the partition layer (14); wherein, by adjusting the thickness of the support base, the distance between the first camera (211), the second camera (212), the third camera (213) and the filter 11 is adjusted, and the distance between the first camera (211), the second camera (212), the third camera (213) and the partition layer 14 is adjusted, wherein the camera (21) includes the first camera (211), the second camera (212), and the third camera (213).

2. The image acquisition device (01) according to claim 1, characterized in that: A ribbon cable fixing member is formed on the circuit fixing plate (27), and the ribbon cable fixing member presses the ribbon cable onto the circuit fixing plate (27); It also includes an elastic pad, the two sides of which are respectively attached to the ribbon cable and the ribbon cable fixing component; The bottom of the ribbon cable fixing component is connected to the circuit fixing plate (27) via a column (26), and the column (26) is used to adjust the size of the gap between the ribbon cable fixing component and the circuit board (271).

3. The image acquisition device (01) according to claim 1, characterized in that, Also includes: The light-emitting component includes a lamp post (51), a light-transmitting plate (53), and a lamp post fixing plate (52). The light-transmitting plate (53) is disposed on the housing (30), the light-transmitting hole passes through the lamp post fixing plate (52) and the housing (30), the light-transmitting hole is located in the area of ​​the light-transmitting plate (53), the lamp post fixing plate (52) is connected to the inner side of the housing (30), and the lamp post (51) is disposed inside the housing (30) and accommodated in the light-transmitting hole; The lamp post (51) has threads on its outer surface, the lamp post (51) is threaded to the light-transmitting hole, and the lamp post (51) is connected to a nut; The light-transmitting plate (53) is attached to the outer surface of the housing (30); the light-transmitting plate (53) and the housing (30) are bonded together by double-sided adhesive (60); The camera assembly (20) also includes a support base with a notch at which the light-emitting component is disposed.

4. The image acquisition device (01) according to claim 1, characterized in that, Also includes: A fixing post (36) passes through the first support base (22) and the second support base (23) in sequence, and extends out of the second support base (23); The housing (30) includes a cover (32) corresponding to the first panel (31), and bolts pass through the cover (32) and are connected to the fixing post (36) to fix the cover (32).

5. The image acquisition device (01) according to claim 1, characterized in that, Also includes: A heat sink (35) is connected to the housing (30); The housing fixing plate (34) includes an enlarged part and a reduced part. The enlarged part is connected to the housing (30), and the reduced part is attached to the heat sink (35).

6. The image acquisition device (01) according to claim 1, characterized in that, Also includes: Connector (40) for making network or electrical connections; The housing (30) is provided with a connection hole (33), and the connector (40) is located at the connection hole (33); Fasteners connect the connector (40) to the housing (30), and an O-ring (42) is disposed between the fastener and the housing (30); A sealing ring (43) is fitted on the connector (40), and the sealing ring (43) is located between the connector (40) and the housing (30); A sealing gasket (44) is disposed between the connector (40) and the housing (30), or on the outside of the connector (40); the sealing gasket (44) is also connected to a cap (45), which is used to close the connector (40).

7. The image acquisition device (01) according to claim 1, characterized in that, The optical transmission component (10) includes: Filter (11); A partition layer (14) is provided, with the filter (11) located on the outside of the partition layer (14) and the camera (21) located on the inside of the partition layer (14). A light-passing aperture extends through the partition layer (14), with the outer side of the light-passing aperture connected to the filter (11), and the camera (21) located inside the light-passing aperture; The filter (11) is attached to the partition layer (14), and the light-passing hole penetrates the partition layer (14). The filter (11) is bonded to the partition layer (14); The filter (11) and the partition layer (14) are bonded together by double-sided adhesive (60), the double-sided adhesive (60) having through holes, the through holes being part of the light transmission hole; The hardness of the partition layer (14) is greater than that of the filter (11).

8. The image acquisition device (01) according to claim 7, characterized in that, The optical transmission component (10) further includes: A heating element (12) is arranged between the filter (11) and the partition layer (14), and the light-passing hole passes through the heating element (12) and the partition layer (14). A heat insulation layer (13) is arranged between the heating element (12) and the partition layer (14), and the light-perforated hole passes through the heating element (12), the heat insulation layer (13), and the partition layer (14).

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