Deep hole optical photographing and camera shooting device

Abstract

The utility model provides a deep hole optical photographing and camera shooting device, and belongs to the technical field of deep hole detection. In order to solve the problems that deep-hole optical photographing and camera shooting operation is inconvenient and efficiency is low, the deep-hole optical photographing and camera shooting device comprises a plurality of camera shooting devices, a switch and a computer terminal, each camera shooting device is connected with a corresponding port of the switch through a network cable, and the switch is connected with the computer terminal through a network cable; the camera device can extend into the hole and comprises a cylindrical shell, an optical module, an image processing module and a network cable are arranged in the shell, the optical module is located at the end of the shell and connected with the image processing module, one end of the network cable is connected with the image processing module, and the other end of the network cable extends out of the end, away from the optical module, of the shell. And connection with a switch is realized. Through cooperation of the plurality of camera devices, the switch and the computer terminal, multi-hole simultaneous photographing and imaging are realized, the imaging efficiency is improved, and the operation is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of deep hole detection, and in particular to a deep hole optical photographing and video recording device. Background Art

[0002] During the production and assembly process of products with porous surfaces, visual inspection of the assembled objects in the holes is required. For example, in industrial applications, there is a situation where powder or tiny granular objects need to be injected into the holes of porous products that are injection molded or compression molded. For product quality control, it is necessary to efficiently detect whether the amount of injected powder reaches the set specification value. Insufficient or excessive powder will bring major quality risks to the product.

[0003] The traditional method is to use industrial cameras to take photos and detect with the help of lenses and lighting outside the holes. However, this method is often limited by the depth and diameter of the holes; and to capture images that meet the requirements, skilled optical engineers and structural engineers are required to lay out the lenses and lighting, which consumes a lot of time for debugging, resulting in high development costs, especially making it difficult to perform simultaneous detection of multiple holes. Utility Model Content

[0004] The purpose of this application is to solve the problem of inconvenient operation and low efficiency of deep hole optical photography and video recording in the prior art. Therefore, this application provides a deep hole optical photography and video recording device, which realizes multi-hole simultaneous photography and imaging through the cooperation of multiple camera devices, switches and computer terminals, improves imaging efficiency and is convenient to operate.

[0005] The embodiment of the present application provides a deep hole optical photography and video recording device, comprising a plurality of video recording devices, a switch and a computer terminal, wherein each of the video recording devices is connected to a corresponding port of the switch via a network cable, and the switch is connected to the computer terminal via a network cable;

[0006] The camera device can be inserted into the hole, and the camera device includes a cylindrical shell, in which an optical module, an image processing module and a network cable are arranged. The optical module is located at the end of the shell and is connected to the image processing module. One end of the network cable is connected to the image processing module, and the other end extends out of the end of the shell away from the optical module and is used to connect to the switch; the shell is a metal shell, and the outer surface is threaded.

[0007] With the above technical solution, an image is acquired through the optical module at the end of the imaging device. There is no need for staff to layout the lens and the lighting lamp, the requirements for the staff's ability are relatively low, and the operation is convenient. Moreover, the imaging device that can extend into the hole improves the operation flexibility and is suitable for different hole depths. Multiple imaging devices are connected to the computer terminal through a switch, which can adapt to simultaneous photographing and imaging of multiple holes, improving the imaging efficiency. At the same time, through the network cable connection, data transmission is realized using the network communication protocol, improving the data transmission efficiency and stability. In addition, the housing of the imaging device is made of a metal housing with a threaded outer surface, which can not only improve the heat dissipation effect, making it more suitable to extend into the hole, but also facilitate the connection of the imaging device to other devices, facilitating its installation and fixation, and improving the operation convenience.

[0008] In some embodiments, a colloidal filler is provided inside the housing, and the colloidal filler fills the gaps inside the housing.

[0009] With the above technical solution, the electronic components inside the housing are hermetically wrapped and tightly connected to the housing, thereby improving the waterproof, dustproof and shockproof effects of the imaging device. Moreover, it can timely conduct and take away the heat generated by the working of the electronic components, improving the service life of the electronic product and being suitable for industrial applications.

[0010] In some embodiments, the image processing module includes a PCB board integrated with a main control chip, and the main control chip is an H.264 / JPEG SOC chip.

[0011] With the above technical solution, the volume of the image processing module can be effectively controlled by the H.264 / JPEG SOC chip, and then the volume of the imaging device can be controlled. It is suitable for extending into the hole, and the image processing effect is good, with many functions, reducing the setting of other electronic components and further controlling the volume.

[0012] In some embodiments, the diameter of the housing is less than 10 mm.

[0013] In some embodiments, the imaging device and the switch are connected through a 100-Mbps network cable, and the switch and the computer terminal are connected through a 1-Gbps network cable.

[0014] In some embodiments, a fixing plate is further included. The fixing plate is provided with a plurality of threaded holes penetrating through its thickness direction. The plurality of imaging devices are threadedly connected to the fixing plate through the housing, and the network cable for connecting to the computer terminal extends out of the fixing plate.

[0015] In some embodiments, an extension rod is further included, the end of which is threadedly connected to the end of the shell facing away from the optical module, and the extension rod is provided with an avoidance channel, which runs through both ends of the extension rod to avoid the network cable of the camera equipment.

[0016] Other features and corresponding beneficial effects of the present application are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the records in the specification of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a usage state of an embodiment of the present application;

[0018] Figure 2 This is another schematic diagram of the use state of the embodiment of the present application;

[0019] Figure 3 It is a structural schematic diagram of the camera device in the embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the camera device and the extension rod of the present application;

[0021] Figure 5 This is a schematic diagram of some usage states of an embodiment of the present application.

[0022] Description of reference numerals:

[0023] 1. Hole;

[0024] 10. Camera equipment; 20. Switch; 30. Computer terminal; 40. Network cable; 50. Fixing plate; 60. Extension rod;

[0025] 11. Housing; 12. Optical module; 13. Image processing module. DETAILED DESCRIPTION

[0026] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this application are limited to the implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, the following description will include many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0027] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

[0030] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0031] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0032] Please refer to Figures 1 - 3 , Figure 1 , which is a schematic diagram of a usage state of an embodiment of the present application, where the imaging device 10 is located inside the hole 1; Figure 2 , which is another schematic diagram of a usage state of an embodiment of the present application, where the imaging device 10 is located outside the hole 1;; Figure 3 , which is a schematic structural diagram of the imaging device 10 in an embodiment of the present application.

[0033] An embodiment of the present application provides a deep-hole optical photographing and imaging device, which includes a plurality of imaging devices 10, a switch 20, and a computer terminal 30. Each imaging device 10 is respectively connected to a corresponding port of the switch 20 through a network cable 40, and the switch 20 is connected to the computer terminal 30 through a network cable 40.

[0034] Images are directly obtained through the imaging device (i.e., the optical module at its end), without the need for staff to layout the lens and lighting lamp, with relatively low requirements for the capabilities of the staff and convenient operation.

[0035] Moreover, the imaging device 10 can extend into the hole 1. It can either adopt the method of shooting outside the hole in the prior art or extend into the hole for shooting, improving the operation flexibility and being suitable for different hole depths. Generally, when the hole depth is less than 200 mm, the imaging device 10 does not need to extend deep into the hole for photographing, that is, it adopts the flying shot form (i.e., located outside the hole), which is convenient for operation and improves the cost performance of the imaging system; when the hole depth exceeds 200 mm, the imaging device 10 can extend into the hole for imaging to improve the imaging effect; when the hole depth exceeds 250 mm, an extension rod 60 can also be added to the top of the imaging device 10 to meet the imaging requirements for holes of any depth, greatly improving the compatibility of the deep-hole optical detection system and the convenience of expansion.

[0036] In addition, the plurality of imaging devices 10 are connected to the computer terminal 30 through the switch 20, which can adapt to simultaneous photographing and imaging of multiple holes 1, improving the imaging efficiency; further, by increasing the switch 20, the number of imaging devices 10 can be greatly increased, thereby increasing the compatibility with the number of deep holes and greatly improving the efficiency of taking pictures, realizing flexible expansion.

[0037] Generally, in the art, a USB cable is used for data transmission, which is hot-pluggable and convenient to use. However, the transmission distance of the USB interface is relatively short, generally not exceeding 5 meters, which is a limitation for applications that require long-distance data transmission. At the same time, although USB 3.0 and higher versions of USB technology provide relatively high data transmission rates, compared with gigabit network cables, their bandwidth is still limited and may not be able to meet the needs of multiple cameras for simultaneous data transmission.

[0038] The network cable interface adopted in the present application is suitable for long-distance and high-bandwidth transmission. For example, a gigabit network cable supports data transmission up to 100 meters, and the transmission rate is as high as 100 MB / s, which is suitable for applications with long-distance and high-bandwidth requirements and can transmit data to a computer terminal at a relatively far location. For example, during normal detection, it is usually located inside the factory production workshop, while the computer terminal is located outside the production workshop. At the same time, the stability of the network cable is better than that of the USB interface, which is suitable for environments with high requirements for data transmission stability and reliability; the network cable interface also has high technical flexibility, which can simplify the setting and management of multiple imaging devices 10 and multiple switches 20.

[0039] In one embodiment, the camera device 10 and the switch 20 are connected via a 100M network cable, and the switch 20 and the computer terminal 30 are connected via a 100M network cable.

[0040] By using existing image processing technology, the data transmission of a single camera device 10 can be optimized, and one picture does not exceed 5M. If 10 pictures are transmitted per second, the data volume is within 50M, so a 100M network cable can meet the demand. There are usually up to 24 camera devices 10 connected between the computer terminal and the switch, so data transmission must be met by 2 Gigabit networks (24*50=1200).

[0041] In one embodiment, the camera device 10 includes a housing 11 in a cylindrical shape, such as a cylindrical housing 11, and preferably, the housing 11 has a diameter less than 10 mm to improve its versatility.

[0042] In one embodiment, an optical module 12, an image processing module 13 and a network cable 40 are disposed in the housing 11. The optical module 12 is located at the end of the housing 11 and is connected to the image processing module 13. One end of the network cable 40 is connected to the image processing module 13, and the other end extends out of the end of the housing 11 away from the optical module 12 and is used to connect to the switch 20. It can be understood that the network cable 40 can be directly connected to the switch 20, or the network cable can be extended through a network cable connector, and the network cable can be connected to the switch 20 by extending the network cable, so as to control the length of the network cable 40 of the camera device 10, thereby facilitating storage and preventing the cables from being tangled and messy.

[0043] It can be understood that the optical module 12 is used for capturing images, and therefore, the corresponding end of the housing 11 is connected to the outside, or preferably, a transparent sealing plate is provided.

[0044] The image processing module 13 is used to process the image acquired by the optical module 12. The image processing technology can adopt conventional technology in the art to achieve image preprocessing and facilitate transmission.

[0045] The computer terminal 30 is preferably an industrial computer to adapt to industrial use environment.

[0046] In one embodiment, the image processing module 13 includes a PCB board integrated with a main control chip, and the main control chip is an H.264 / JPEG SOC chip.

[0047] The H.264 / JPEG SOC chip is compact in size and highly integrated in function. It has a high-performance ISP image processing unit and an H.264 / JPEG compression encoder, with excellent image processing capabilities, high encoding quality, and low encoding bit rate. At the same time, it integrates a 512M DDR2 memory internally and has complete peripheral interfaces required for applications, such as Ethernet, etc. And this chip has a high-performance CPU, supporting intelligent applications such as vision detection.

[0048] This method can effectively control the volume of the image processing module 13 through the H.264 / JPEG SOC chip, and then control the volume of the imaging device 10, which is suitable for extending into the hole 1. Moreover, the image processing effect is good, with many functions, reducing the setting of other electronic components and further controlling the volume.

[0049] In one embodiment, the optical module 12 includes a dust-proof glass, a lens, a photosensitive sensor, a backlight module, and a flexible circuit arranged in sequence from outside to inside. It can be assembled using an optical module suitable for being placed in the housing 11 in the prior art.

[0050] Since there are multiple electronic components encapsulated in the housing 11 and the working environment is inside the hole 1, there are relatively high requirements for its heat dissipation. Therefore, in one embodiment, the housing 11 is a metal housing 11, and its outer surface is threaded, thereby increasing the surface heat dissipation area. When the imaging device 10 extends into or exits the hole 1, it is fully in contact with the air, achieving a good air-cooled heat dissipation effect, reducing the working temperature of the device, and extending the service life. At the same time, the externally threaded housing 11 also facilitates the connection of the imaging device 10 to other devices, facilitating its installation and fixation, and improving the operation convenience. For example, it is connected to the extension rod 60 to meet imaging with any hole depth, or for example, it is connected to the fixing plate 50 to integrate multiple imaging devices 10 into one body.

[0051] In one embodiment, a colloidal filler is provided inside the housing 11, and the colloidal filler fills the gaps inside the housing 11. Usually, during the manufacturing stage, after the electronic components are installed inside the housing 11, an overall potting process is carried out to make the colloidal filler fill the gaps inside the housing 11.

[0052] This method realizes that the electronic components inside the housing 11 are hermetically wrapped and tightly connected to the housing 11, thereby improving the waterproof, dust-proof, and shock-proof effects of the imaging device 10, being suitable for industrial applications, and also being able to conduct and carry away the heat generated by the working of the electronic components in a timely manner, extending the service life of the electronic product, that is, this glue can well conduct the heat to the outer shell, thus playing a role in heat dissipation.

[0053] Please refer to Figure 4 , Figure 4 which is a schematic structural diagram of the imaging device 10 and the extension rod 60 of this application.

[0054] In one embodiment, the device also includes an extension rod 60, the end of which is threadedly connected to the end of the shell 11 away from the optical module 12, and the extension rod 60 is provided with an avoidance channel, which runs through both ends of the extension rod 60 to avoid the network cable 40 of the camera device 10.

[0055] By adding an extension rod 60 to the top of the camera device 10, imaging in holes of any depth can be achieved, especially holes with a depth exceeding 250 mm, which greatly improves the compatibility of the device and the convenience of expansion.

[0056] See also Figure 5 as well as Figure 2 , Figure 5 This is a schematic diagram of some usage states of an embodiment of the present application.

[0057] In one embodiment, the device further comprises a fixing plate 50, which is provided with a plurality of threaded holes 1 penetrating the thickness direction thereof, and a plurality of camera devices 10 are threadedly connected to the fixing plate 50 through the housing 11, and the network cable 40 for connecting to the computer terminal 30 extends out of the fixing plate 50, thereby facilitating connection. Preferably, the fixing plate 50 is connected with a lifting device, so that the plurality of camera devices 10 can be lifted and lowered synchronously to enter and exit the hole 1; and when the hole depth is lower than the depth of field of the camera device 10, the fixing plate 50 can also be driven by the motion mechanism to translate outside the hole, thereby realizing the flying shooting function (see Figure 2 ).

[0058] In a usage scenario, networking data communication is completed by the following steps:

[0059] 1. The computer terminal 30 detects all the camera devices 10 in the network segment (udp multicast). The detection frequency of the computer terminal 30 is determined by the computer terminal 30. When the number of camera devices 10 in the network changes (manual plugging and unplugging), the detection can be re-detected. The detection takes about 2 seconds.

[0060] 2. The computer terminal 30 initiates a start-capture command to all camera devices 10 (UDP multicast).

[0061] 3. The computer terminal 30 establishes a connection with each of the camera devices 10. When connected, the IP address of the camera device 10 will be automatically negotiated after the first insertion. After one minute, the IP address will be fixed, and the IP address will be fixed for each subsequent connection. If the IP address needs to be modified, it can be manually modified through a software tool, or a factory reset command can be sent to all camera devices 10 to automatically negotiate again.

[0062] 4. The imaging device 10 continuously pushes pictures to the computer terminal 30 (about once every 100 milliseconds) (tcp). If the push fails, it will be pushed again, with a maximum of 5 attempts. If an individual imaging device 10 drops the line, it will keep reconnecting until the computer terminal 30 sends a stop capture command. The disconnection alarm should be controlled by the application program of the computer terminal 30.

[0063] 5. When the computer terminal 30 captures a picture, it captures the latest picture pushed over. The pictures pushed by the imaging device 10 to the computer terminal 30 are stored in the memory, and the next picture will overwrite the previous one. When capturing, a copy of the picture in the memory will be made and stored in a certain folder with a file naming method with certain rules. The file name contains time and IP address information.

[0064] 6. When the computer terminal 30 needs to end the picture capture, it sends an end command (udp multicast) to all the imaging devices 10, and the imaging devices 10 will no longer push pictures, and the whole process ends. During the picture capture process, if the connection between the computer terminal 30 and the imaging device 10 is interrupted, an attempt will be made to re - establish the connection.

[0065] In the software logic, it does not care about the physical link between the switch and the router, which is determined by the device networking.

[0066] Confirmation of the hardware and software startup sequence: Power on after all the imaging devices 10 are plugged in.

[0067] It can be understood that for this device, other networking data communication methods can also be adopted as long as data transmission can be achieved.

[0068] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: They can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A deep hole optical photographing and imaging device, characterized in that: It includes a plurality of camera devices, a switch and a computer terminal, each of the camera devices is connected to a corresponding port of the switch through a network cable, and the switch is connected to the computer terminal through a network cable; The camera device can be inserted into the hole, and the camera device includes a cylindrical shell, in which an optical module, an image processing module and a network cable are arranged. The optical module is located at the end of the shell and is connected to the image processing module. One end of the network cable is connected to the image processing module, and the other end extends out of the end of the shell away from the optical module and is used to connect to the switch; the shell is a metal shell, and the outer surface is threaded.

2. The deep hole optical photographing and imaging device according to claim 1, characterized in that: A colloid filler is arranged inside the shell, and the colloid filler fills the gap in the shell.

3. The deep hole optical photographing and imaging device according to claim 1, characterized in that: The image processing module includes a PCB board integrated with a main control chip, and the main control chip is an H.264 / JPEG SOC chip.

4. The deep hole optical photographing and imaging device according to claim 1, characterized in that: The diameter of the housing is less than 10 mm.

5. The deep hole optical photographing and imaging device according to claim 1, characterized in that: The camera device and the switch are connected via a 100M network cable, and the switch and the computer terminal are connected via a 100M network cable.

6. The deep hole optical photographing and imaging device according to any one of claims 1 to 5, characterized in that: It also includes a fixing plate, which is provided with a plurality of threaded holes penetrating the thickness direction thereof, the plurality of camera devices are threadedly connected to the fixing plate through the shell, and the network cable for connecting to the computer terminal extends out of the fixing plate.

7. The deep hole optical photographing and imaging device according to any one of claims 1 to 5, characterized in that: It also includes an extension rod, the end of which is threadedly connected to the end of the shell away from the optical module, and the extension rod is provided with an avoidance channel, which runs through both ends of the extension rod to avoid the network cable of the camera equipment.

Images