Camera system and camera

Abstract

The utility model provides a camera system and a camera, relates to the technical field of cameras, and is used for solving the problem that wiring between the camera and terminal equipment is difficult due to increase of the number of cameras in the camera system. The camera system includes a terminal device and a plurality of cameras. The terminal equipment comprises at least one terminal data interface. Each camera comprises a first data interface and a second data interface, the plurality of cameras are sequentially connected in series, the second data interface of the first camera is connected with one of at least one terminal data interface of the terminal equipment, the second data interface of the Nth camera is connected with the first data interface of the (N-1) th camera, and N is a positive integer greater than or equal to 2. By adopting the camera system for data transmission, the wiring between the camera and the terminal equipment can be simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, in particular to a camera system and a camera. Background Art

[0002] As machine vision technology matures, its applications are becoming more and more extensive. When using machine vision technology for inspection, industrial cameras are usually used. Industrial cameras are the core components of the machine vision system, equivalent to the "eyes" of machine vision. They are responsible for collecting images of the products to be inspected and transmitting them to the controller in the machine vision system for image processing.

[0003] Among them, USB industrial cameras are widely used in industry due to their advantages of low price, strong versatility, convenient connection, and support for hot plugging. In the related art, USB industrial cameras are connected to terminal devices through cables, but with the increase in the number of USB industrial cameras, the number of cables between them and terminal devices will increase, which will cause wiring difficulties and other problems, bringing certain difficulties to the installation of USB industrial cameras. Utility Model Content

[0004] The embodiment of the utility model provides a camera system and a camera, which solves the problem that wiring between multiple cameras and terminal equipment is difficult due to an increase in the number of cameras in the camera system.

[0005] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0006] In a first aspect, the present application provides a camera system, the camera system comprising a terminal device and a plurality of cameras. The terminal device comprises at least one terminal data interface. Each camera comprises a first data interface and a second data interface, wherein the plurality of cameras are sequentially connected in series, the second data interface of the first camera is connected to one of the at least one terminal data interface of the terminal device, the second data interface of the Nth camera is connected to the first data interface of the N-1th camera, and N is a positive integer greater than or equal to 2.

[0007] Each of the N cameras in the camera system includes two data interfaces, which enables the N cameras to be connected in series. In addition to the second data interface of the first camera being connected to one of at least one terminal data interface of the terminal device, the first data interface of each of the N cameras is connected to the second data interface of the previous camera in series. In a camera system that uses this method for data transmission, since each camera no longer needs to be connected to a terminal device, the number of data interfaces of the terminal device that needs to be used is greatly reduced, and the wiring between the camera and the terminal device is also simplified.

[0008] As a possible implementation, the camera system further includes at least one first data cable and a second data cable, wherein the first data cable is used to connect the second data interface of the Nth industrial camera with the first data interface of the N-1th industrial camera. The second data cable is used to connect the second data interface of the first camera with the data interface of the terminal device.

[0009] As a possible implementation manner, any one of the terminal data interface, the first data interface and the second data interface is one of a universal serial bus interface, an HDMI interface and a DVI interface.

[0010] As a possible implementation, the camera further includes a processing circuit, where the processing circuit is connected to the first data interface and the processing circuit is also connected to the second data interface, and the processing circuit is used to send data from the first data interface to the second data interface.

[0011] As a possible implementation, the camera is an industrial camera, the camera system is an industrial camera system, the industrial camera system also includes a gantry, and a plurality of industrial cameras are installed on the gantry.

[0012] In a second aspect, the present application provides a camera, the camera comprising a viewfinder and a body, the body comprising a printed circuit board, and a first data interface and a second data interface are provided on the printed circuit board. The second data interface of the camera is used to connect to one of at least one terminal data interface of a terminal device, or the second data interface of the camera is used to connect to the first data interface of other cameras. The first data interface of the camera is used to connect to the second data interface of other cameras.

[0013] By setting the first data interface and the second data interface on the printed circuit board of the camera, since the second data interface of the camera can be connected to one of at least one terminal data interface of the terminal device or the first data interface of other cameras according to the specific application scenario, the first data interface of the camera is used to connect to the second data interface of other cameras, thereby enhancing the flexibility of the camera to a certain extent.

[0014] As a possible implementation manner, any one of the first data interface and the second data interface on the printed circuit board of the camera is one of a universal serial bus interface, an HDMI interface, and a DVI interface.

[0015] As a possible implementation, the camera further includes a processing circuit, where the processing circuit is connected to the first data interface and the processing circuit is also connected to the second data interface, and the processing circuit is used to send data from the first data interface to the second data interface.

[0016] As a possible implementation, an image sensor, a processor, and a memory are also provided on the printed circuit board. The processor is connected to the image sensor, and the processor is connected to the memory. The processor is configured to process the signal sent by the image sensor and send the processed signal to the memory. The first data interface is electrically connected to the memory, and the second data interface is electrically connected to the memory. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a camera system provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of another camera system provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of another camera system provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the partial composition of a camera provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of another camera system provided in an embodiment of the present application;

[0022] Figure 6 A schematic diagram of a camera provided in an embodiment of the present application;

[0023] Figure 7 A schematic diagram of the partial composition of another camera provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, when describing the pipeline, the "connected" and "connection" used in the present utility model have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0027] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0028] Machine vision system refers to the use of machines to replace human eyes to make various measurements and judgments. It integrates technologies in optics, mechanics, electronics, computer hardware and software, and involves multiple fields such as computers, image processing, pattern recognition, artificial intelligence, signal processing, optomechanical integration, etc. The rapid development of technologies such as image processing and pattern recognition has also greatly promoted the development of machine vision.

[0029] When using machine vision technology for inspection, it is usually used in conjunction with multiple industrial cameras, such as Figure 1 See Figure 1 , Figure 1 A camera system is shown, the camera system 100 includes a terminal device 1, a camera 2, a gantry 3 and a data cable 4. The terminal device includes three terminal data interfaces, such as a first terminal data interface 11, a second terminal data interface 12 and a third terminal data interface 13. The camera 2 includes multiple cameras, such as a first camera 2A, a second camera 2B and a third camera 2C, each camera 2 includes a data interface, such as a data interface 2A-1 of the first camera 2A, a data interface 2B-1 of the second camera 2B, and a data interface 2C-1 of the third camera 2C.

[0030] according to Figure 1It is not difficult to see that the first camera 2A, the second camera 2B and the third camera 2C are arranged on the gantry 3, and can take mobile photos as the gantry moves. The data interface 2A-1 of the first camera 2A is connected to the first terminal data interface 11 of the terminal device through a data cable 4, the data interface 2B-1 of the second camera 2B is connected to the second terminal data interface 12 through a data cable 4, and the data interface 2C-1 of the third camera 2C is connected to the third terminal data interface 13 of the terminal device through a data cable 4, so the data of the first camera 2A, the second camera 2B and the third camera 2C can be transmitted to the terminal device through the first terminal data interface 11, the second terminal data interface 12 and the third terminal data interface 13 respectively.

[0031] It should be noted that Figure 1 In this example, only three cameras are used. In actual industrial application scenarios, more cameras may be set on the gantry. Figure 1 In the connection method, for each additional camera, the terminal device needs to add a terminal data interface. As the distance between the new camera and the terminal device becomes farther and farther, the required data cable length becomes longer and longer, and wiring becomes more and more difficult. Therefore, how to provide a USB industrial camera that is easy to install has become a technical problem that needs to be solved urgently.

[0032] In view of this, an embodiment of the present application provides a camera system such as Figure 2 See Figure 2 The camera system 100 includes a terminal device 1 and a plurality of cameras 2, such as a first camera 2A, a second camera 2B and a third camera 2C, wherein the terminal device includes at least one terminal data interface, such as Figure 2 A terminal data interface 11 is used as an example for description. Each camera includes a first data interface and a second data interface, for example, the first camera 2A includes a first data interface 2A-1 and a second data interface 2A-2, the second camera 2B includes a first data interface 2B-1 and a second data interface 2B-2, and the third camera 2C includes a first data interface 2C-1 and a second data interface 2C-2.

[0033] Wherein, multiple cameras 2 are connected in series in sequence, the second data interface of the first camera is connected to one of at least one terminal data interface of the terminal device, the second data interface of the Nth camera is connected to the first data interface of the N-1th camera, and N is a positive integer. Figure 2 For example, the second data interface 2C-2 of the third camera 2C is connected to the first data interface 2B-1 of the second camera 2B, the second data interface 2B-2 of the second camera 2B is connected to the first data interface 2A-1 of the first camera 2A, and the second data interface 2A-2 of the first camera 2A is connected to the terminal data interface of the terminal device 1.

[0034] The data captured by the third camera 2C is transmitted to the first data interface 2B-1 of the second camera 2B through the second data interface 2C-2. The second data interface 2B-2 of the second camera 2B transmits the data stored in the second camera, including the data captured by the second camera 2B and the data transmitted by the third camera 2C through the second data interface 2C-2, to the first data interface 2A-1 of the first camera 2A. The first camera 2A transmits the data captured by the first camera and the data captured by the second camera 2B and the third camera 2C to the terminal device 1 through the second data interface 2A-2 of the first camera 2A.

[0035] Figure 2 The camera system shown connects multiple cameras in series in sequence, so that ultimately only one terminal data interface of a terminal device is needed, avoiding the situation where the terminal device needs to reserve a large number of terminal data interfaces. In addition, since the cameras are connected in series in sequence, most of the data cables only need to connect the data interfaces between two adjacent cameras (except the first camera connected to the terminal data interface of the terminal device). Therefore, the wiring is simple and convenient, and the reliability and safety of the camera system are greatly improved.

[0036] As a possible implementation, the mode of the first data interface is active mode; the mode of the second data interface is passive mode. Active mode is also called Host mode or Master mode, and passive mode is also called Slave mode. The biggest feature of Host-Slave mode is the one-way flow of data, that is, data can only be transmitted from the active mode direction to the passive mode direction, and cannot be transmitted from the passive mode direction to the active mode direction. Figure 2 For example, the data flow between the cameras can only be transmitted from the first data interface of each camera 2 to the second data interface of the camera itself, for example, data is transmitted from the first data interface 2B-1 of the second camera 2B to the second data interface 2B-2 of the second camera 2B. This transmission method forces the data flow to be fixed, preventing the second camera 2B from transmitting data from the second data interface 2B-2 to the first data interface 2B-1, while the first camera 2A transmits data from the first data interface 2A-1 to the second data interface 2A-2, thereby causing data transmission disorder.

[0037] The data transmission direction within the camera is from the first data interface to the second data interface, while the data transmission between adjacent cameras and between the camera and the terminal device is transmitted via a data cable. Figure 3As shown, the camera system further includes a data cable 4, which includes at least one first data cable 41 and a second data cable 42. The first data cable 41 is used to connect the second data interface of the Nth industrial camera with the first data interface of the N-1th industrial camera. The second data cable 42 is used to connect the second data interface of the first camera with the data interface of the terminal device 1.

[0038] Combination Figure 3 The direction of data transmission between adjacent cameras and between cameras and terminal devices is from the second data interface of the Nth camera to the first data interface of the N-1th camera, until the second data interface of the first camera transmits the data to the terminal data interface of the terminal device.

[0039] As a possible implementation, any one of the terminal data interface, the first data interface, and the second data interface is a Universal Serial Bus (USB) interface, an HDMI interface, or a DVI interface. For example, the first data interface and the second data interface are USB interfaces, the terminal data interface is an HDMI interface, or the first data interface, the second data interface, and the terminal data interface are all USB interfaces. The USB interface includes a USB Type-A interface, a mini-USB interface, a micro-USB interface, a USB Type-B interface, a USB Type-C interface, and the like.

[0040] The USB interface is a standardized connector developed by many companies to simplify the interconnection between devices and realize digital multimedia integration. The advantages of the universal serial bus interface are plug and play, support for hot swapping, large bandwidth, and can easily realize data exchange. Therefore, the terminal data interface, the first data interface and the second data interface are all universal serial bus interfaces to ensure the data transmission quality and speed of the camera system.

[0041] For example, Figure 4 As shown, Figure 4 The following figure shows the components of the camera. Figure 4In addition to the first data interface 2-1 and the second data interface 2-2, the camera also includes a processing circuit 20, which is connected to the first data interface 2-1 and is also connected to the second data interface 2-2. The specific processing circuit includes: a first virtual network card device 2111, a second virtual network card device 2112, and a virtual bridge device 2113. The first virtual network card device 2111 is bound to the first data interface 2-1, and is used to virtualize the first data interface 2-1 as a first virtual network card device. The second virtual network card device 2112 is bound to the second data interface 2-2, and is used to virtualize the second data interface 2-2 as a second virtual network card device. The virtual bridge device 2113 is connected to the first virtual network card device 2111 and the second virtual network card device 2112, and is used to forward the data received by the first virtual network card device to the second virtual network card device.

[0042] By binding the first virtual network card device 2111 with the first data interface 2-1, and binding the second virtual network card device 2112 with the second data interface 2-2, the first data interface 2-1 and the second data interface 2-2 are virtualized as network card devices, and the first virtual network card device and the second virtual network card device are bridged through the virtual bridge device 2113, so that it can realize the function of a switch to transmit data.

[0043] The embodiment of the present application also provides a bridging method using Linux, in which the first virtual network card device 2111 is bound to the first data interface 2-1. The first virtual network card device is virtualized as usb0, the second virtual network card device 2112 is bound to the second data interface 2-2, and the second virtual network card device is virtualized as usb1. The method is as follows:

[0044] In the virtual bridge device of the camera, the bridge is managed by the Brctl tool under the Linux platform. Before using the Brctl tool, you need to download the bridge management tool package Bridge-utils on the Linux platform. As an optional embodiment, the bridge can be added in the following way:

[0045] / mnt / data / brctl#brctl show

[0046] / mnt / data / brctl#brctl addbr br0

[0047] / mnt / data / brctl#brctl show

[0048] bridge name bridge id STP enabled interfaces

[0049] br0 8000.000000000000no

[0050] As an optional embodiment, the first virtual network card device usb0 and the second virtual network card device usb1 can be added to the bridge br0 in the following manner:

[0051] / mnt / data / brctl#brctl show br0

[0052] bridge name bridge id STP enabled interfaces

[0053] br0 8000.000000000000no

[0054] / mnt / data / brctl#

[0055] / mnt / data / brctl#brctl addif br0 usb0

[0056] br0:port 1(usb0)entered blocking state

[0057] br0:port 1(usb0)entered disabled state

[0058] device usb0 entered promiscuous mode

[0059] / mnt / data / brctl#

[0060] / mnt / data / brctl#brctl add if br0 usb1

[0061] br0: port 2(usb1)entered blocking state

[0062] br0:port 2(usb1)entered disabled state

[0063] device usb1 entered promiscuous mode

[0064] / mnt / data / brctl#

[0065] / mnt / data / brctl#brctl br0 show

[0066] bridge name bridge id STP enabled interfaces

[0067] br0 8000.00301bba02db no usb0

[0068] usb1

[0069] After successfully adding the first virtual network card device usb0 and the second virtual network card device usb1 to the bridge br0, it is necessary to release the IP addresses of the first virtual network card device usb0 and the second virtual network card device usb1. As an optional embodiment, the IP addresses of the first virtual network card device usb0 and the second virtual network card device usb1 can be released in the following way:

[0070] / mnt / data / brctl#ifconfig usb0 0.0.0.0up

[0071] / mnt / data / brctl#ifconfig usb1 0.0.0.0up

[0072] As an optional embodiment, the IP and subnet mask can be configured and started for the bridge in the following manner:

[0073] / mnt / data / brctl#ifconfig br0 10.22.114.201netmask 255.255.255.0up

[0074] br0: port 2(usb1)entered blocking state

[0075] br0:port 2(usb1)entered forwarding state

[0076] br0:port 1(usb0)entered blocking state

[0077] br0:port 1(usb0)entered forwarding state

[0078] The configuration is now successful, and the function of transmitting the internal data of the camera from the first data interface 2-1 to the second data interface can be realized.

[0079] For example, Figure 5 As shown, Figure 5Another camera system provided by an embodiment of the present application is shown, the camera system 100 is an industrial camera system, including a terminal device 1, a plurality of cameras 2, a gantry 3, a first data cable 41 connecting a first camera and the terminal device 1, and a second data cable 42 connecting interfaces of adjacent cameras. The camera 2 in the industrial camera system 100 is an industrial camera, which is arranged on the gantry 3.

[0080] The second data interface 2C-2 of the third camera 2C is connected to the first data interface 2B-1 of the second camera 2B, the second data interface 2B-2 of the second camera 2B is connected to the first data interface 2A-1 of the first camera 2A, and the second data interface 2A-2 of the first camera 2A is connected to the terminal data interface of the terminal device 1.

[0081] The data captured by the third camera 2C is transmitted to the first data interface 2B-1 of the second camera 2B through the second data interface 2C-2. The second data interface 2B-2 of the second camera 2B transmits the data stored in the second camera, including the data captured by the second camera 2B and the data transmitted by the third camera 2C through the second data interface 2C-2, to the first data interface 2A-1 of the first camera 2A. The first camera 2A transmits the data captured by the first camera and the data captured by the second camera 2B and the third camera 2C to the terminal device 1 through the second data interface 2A-2 of the first camera 2A.

[0082] Figure 5 The industrial camera system shown connects multiple industrial cameras in series in sequence, so that only one terminal data interface of the terminal device is required in the end, avoiding the situation where the terminal device needs to reserve a large number of terminal data interfaces. In addition, since the industrial cameras are connected in series in sequence, most of the data cables only need to connect the data interfaces between two adjacent industrial cameras (except the first camera connected to the terminal data interface of the terminal device). Therefore, the wiring is simple and convenient, and there will be no problem of difficulty in moving the gantry due to redundant wiring of a large number of industrial cameras. The reliability and safety of the industrial camera system are greatly improved.

[0083] It should be understood that the difference between the “camera” and the “industrial camera” mentioned in the embodiments of the present application is only the difference in the usage scenarios.

[0084] Exemplarily, the present application also provides a camera, such as Figure 6 See Figure 6 The camera 2 includes a body 21 and a viewfinder 22. The body 21 includes a printed circuit board 211. The printed circuit board 211 is provided with a first data interface 2-1 and a second data interface 2-2.

[0085] The second data interface 2-2 of the camera 2 is used to connect to one of at least one terminal data interface of the terminal device 1, or the second data interface 2-2 of the camera 2 is used to connect to the first data interface 2-1 of other cameras 2. The first data interface 2-1 of the camera 2 is used to connect to the second data interface 2-2 of other cameras 2.

[0086] It should be understood that any one of the first data interface and the second data interface is a Universal Serial Bus (USB) interface, an HDMI interface, and a DVI interface. For example, the first data interface and the second data interface are USB interfaces, the terminal data interface is an HDMI interface, or the first data interface, the second data interface, and the terminal data interface are all USB interfaces. The USB interface includes a USB Type-A interface, a mini-USB interface, a micro-USB interface, a USB Type-B interface, a USB Type-C interface, and the like.

[0087] By setting the first data interface 2-1 and the second data interface 2-2 on the printed circuit board 211 of the camera 2, since the second data interface 2-2 of the camera 2 can be connected to one of the at least one terminal data interface of the terminal device 1 or the first data interface 2-1 of other cameras 2 according to the specific application scenario, the first data interface 2-1 of the camera 2 is used to connect to the second data interface 2-2 of other cameras 2, thereby enhancing the flexibility of the camera to a certain extent.

[0088] Reference Figure 4 As a possible implementation, the camera also includes a processing circuit 20, the processing circuit 20 is connected to the first data interface 2-1, and the processing circuit 20 is also connected to the second data interface 2-2. The specific processing circuit includes: a first virtual network card device, a second virtual network card device and a virtual bridge device. The first virtual network card device is bound to the first data interface, and is used to virtualize the first data interface as a first virtual network card device. The second virtual network card device is bound to the second data interface, and is used to virtualize the second data interface as a second virtual network card device. The virtual bridge device is connected to the first virtual network card device and the second virtual network card device, and is used to forward the data received by the first virtual network card device to the second virtual network card device. This implementation has been mentioned in the above embodiment and will not be repeated here.

[0089] Combination Figure 7 , Figure 7 The following figure shows the components of the camera. Figure 7The printed circuit board 211 is also provided with an image sensor 2114, a processor 2115 and a memory 2116. The processor 2115 is connected to the image sensor 2114, and the processor 2115 is connected to the memory 2116. The processor 2115 is configured to process the signal sent by the image sensor 2114 and send the processed signal to the memory 2116. The first data interface 2-1 is electrically connected to the memory 2116, and the second data interface 2-2 is electrically connected to the memory 2116.

[0090] Image sensor 2114, also known as photosensitive element, is a device that converts optical image information into electrical signals. It is widely used in digital cameras and other electronic optical devices. The subject projects the target image onto image sensor 2114 through viewfinder 22. Image sensor 2114 divides the captured target image into regions and performs photoelectric conversion. The number of photons irradiated on each region is converted into a corresponding charge amount and sent to processor 2115. After analog-to-digital conversion and encoding processing by processor 2115, the pixel distribution and brightness, color and other information of the corresponding region are converted into binary code for storage. Since the second data interface 2-2 is electrically connected to memory 2116, the data transmitted by the second data interface 2-2 can also be stored in memory 2116. Since the first data interface 2-1 is electrically connected to memory 2116, the data in memory 2116 can also be forwarded through the first data interface 2-1, thereby greatly improving the flexibility of the camera.

[0091] Those skilled in the art will readily come up with other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0092] Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A camera system, characterized in that: include: Terminal equipment; The terminal device comprises at least one terminal data interface; Multiple cameras; The camera comprises: a first data interface and a second data interface; Among them, the multiple cameras are connected in series in sequence, the second data interface of the first camera is connected to one of the at least one terminal data interface of the terminal device, the second data interface of the Nth camera is connected to the first data interface of the N-1th camera, and N is a positive integer greater than or equal to 2.

2. The camera system according to claim 1, characterized in that The camera system further comprises: at least one first data cable, the first data cable being used to connect the second data interface of the Nth camera to the first data interface of the N-1th camera; The second data cable is used to connect the second data interface of the first camera to the data interface of the terminal device.

3. The camera system according to claim 1, characterized in that Any one of the terminal data interface, the first data interface and the second data interface is one of a universal serial bus interface, an HDMI interface and a DVI interface.

4. The camera system according to claim 3, characterized in that The camera also includes processing circuitry: The processing circuit is connected to the first data interface, and is also connected to the second data interface. The processing circuit is used to send data from the first data interface to the second data interface.

5. The camera system according to claim 4, characterized in that The camera is an industrial camera, the camera system is an industrial camera system, and the industrial camera system further includes: A gantry, wherein the plurality of industrial cameras are mounted on the gantry.

6. A camera, characterized in that: The camera comprises a viewfinder and a body, the body comprises a printed circuit board, and the printed circuit board is provided with a first data interface and a second data interface; The second data interface of the camera is used to connect to one of at least one terminal data interface of the terminal device, or the second data interface of the camera is used to connect to the first data interface of other cameras; The first data interface of the camera is used to connect to the second data interface of other cameras.

7. The camera according to claim 6, characterized in that Any one of the first data interface and the second data interface is one of a universal serial bus interface, an HDMI interface, and a DVI interface.

8. The camera according to claim 6, characterized in that The camera also includes: a processing circuit The processing circuit is connected to the first data interface, and is also connected to the second data interface. The processing circuit is used to send data from the first data interface to the second data interface.

9. The camera according to claim 6, characterized in that The printed circuit board is also provided with an image sensor, a processor and a memory; The processor is connected to the image sensor, the processor is connected to the memory, and the processor is configured to process the signal sent by the image sensor and send the processed signal to the memory; The first data interface is electrically connected to the memory, and the second data interface is electrically connected to the memory.

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