An image acquisition card and a data signal transmission system

Abstract

The embodiment of the application provides an image acquisition card and a data signal transmission system, and relates to the technical field of machine vision.The image acquisition card comprises a connection module and a main control module, and the connection module comprises a first board end connector and a second board end connector;in the case that the mode of the image acquisition card is a double BASE mode, one end of the first board end connector is connected with the main control module, and the other end is used for connecting a first camera end connector of a first camera through a cable, for transmitting a control signal for the first camera output by the main control module to the first camera, and transmitting image data and a return signal input by the first camera to the main control module;one end of the second board end connector is connected with the main control module, and the other end is used for connecting a first camera end connector of a second camera through a cable;for transmitting a control signal for the second camera output by the main control module to the second camera, and transmitting image data and a return signal input by the second camera to the main control module.

Description

Technical Field

[0001] This application relates to the field of machine vision technology, and in particular to an image acquisition card and a data signal transmission system. Background Technology

[0002] Camera Link (CML) is a serial communication protocol specifically designed for machine vision applications. The CML standard specifies the interface between digital cameras and image acquisition cards, employing unified physical connectors and pin definitions, allowing any digital camera and image acquisition card conforming to the Camera Link standard to be physically interconnected. In addition, CML specifies four different camera modes: BASE, Medium, Full, and 80-bit. Medium, Full, and 80-bit are single-channel camera modes, while BASE is a dual-channel camera mode. In related technologies, one connection module of an image acquisition card can only connect to one camera. In single-channel camera mode, one image acquisition card needs to connect to one camera through the interface of the connection module. In dual-channel camera mode, two image acquisition cards need to be connected to two cameras respectively, or two connection modules of one image acquisition card need to be connected to two cameras respectively. This results in a significant consumption of connection module resources when there are many camera channels. Summary of the Invention

[0003] The purpose of this application is to provide an image acquisition card and a data signal transmission system to reduce the resource consumption of the connection module. The specific technical solution is as follows:

[0004] In a first aspect, embodiments of this application provide an image acquisition card, including: a main control module and at least one connection module, wherein the connection module includes a first board end connector and a second board end connector;

[0005] When the image acquisition card is in dual-BASE mode, one end of the first board connector is connected to the main control module, and the other end of the first board connector is used to connect to the first camera connector of the first camera via a cable.

[0006] The first board connector is used to transmit the control signal for the first camera output by the main control module to the first camera, and to transmit the image data and receipt signal input by the first camera to the main control module.

[0007] One end of the second board connector is connected to the main control module, and the other end of the second board connector is used to connect to the first camera connector of the second camera via a cable.

[0008] The second board connector is used to transmit the control signals output by the main control module for the second camera to the second camera, and to transmit the image data and receipt signals input by the second camera to the main control module.

[0009] In one embodiment of this application,

[0010] Both the second board connector and the first camera connector of the second camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the second board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the second camera via a cable.

[0011] The first pin of the second board connector is used to transmit the CC signal output by the main control module for the second camera to the second camera, wherein the differential pair of pins connected to the first pin of the second board connector is configured in differential output mode.

[0012] The second pin of the second board connector is used to transmit the Xlink signal input from the second camera to the main control module;

[0013] The third pin of the second board connector is used to transmit the SerTC+ / - signal output by the main control module to the second camera, wherein the differential pair of pins connected to the third pin of the second board connector is configured in differential output mode.

[0014] The fourth pin of the second board connector is used to transmit the SerTFG+ / - signal input from the second camera to the main control module.

[0015] In one embodiment of this application,

[0016] The second board connector and the first camera connector of the second camera both include 26 pins, and each pin has a line number of 1-26; the differential pairs of each pin of the main control module include differential pair 17, differential pair 19, differential pair 20, differential pair 21, and differential pair 22, all of which are configured in differential output mode.

[0017] The first pins of the second board end connector include pin 18, pin 17, pin 16, pin 15, pin 5, pin 4, pin 3, and pin 2;

[0018] One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the first camera connector of the second camera, respectively. The other end is connected to the 19N- output of pin differential pair 19, the 20N- output of pin differential pair 20, the 21N- output of pin differential pair 21, and the 22N- output of pin differential pair 22 of the main control module, respectively, for transmitting the CC1-, CC2+, CC3-, and CC4+ signals output by the main control module for the second camera to the second camera.

[0019] One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the first camera connector of the second camera, respectively, and the other end is connected to the 19P- output of pin differential pair 19, the 20P- output of pin differential pair 20, the 21P- output of pin differential pair 21, and the 22P- output of pin differential pair 22 of the main control module, respectively, for transmitting the CC1+, CC2-, CC3+, and CC4- signals output by the main control module for the first camera to the second camera;

[0020] The second pins of the second board end connector include pins 25, 24, 23, 22, 21, 12, 11, 10, 9, and 8;

[0021] Pins 25, 24, 23, 22, and 21 of the second board-side connector are respectively connected to pins 2, 3, 4, 5, and 6 of the first camera-side connector of the second camera, for transmitting the X0-, X1-, X2-, XCK-, and X3- signals input from the second camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board-side connector are respectively connected to pins 15, 16, 17, 18, and 19 of the first camera-side connector of the second camera, for transmitting the X0+, X1+, X2+, XCK+, and X3+ signals input from the second camera to the main control module.

[0022] The third pin of the second board end connector includes pin 20 and pin 7; one end of pin 20 and pin 7 of the second board end connector is connected to pin 7 and pin 20 of the first camera end connector of the second camera, respectively, and the other end is connected to the 17N-output and 17P-output of the pin differential pair 17 of the main control module, respectively, for transmitting the SerTC+ / - signal output by the main control module for the second camera to the second camera;

[0023] The fourth pin of the second board-end connector includes pin 19 and pin 6; pin 19 and pin 6 of the second board-end connector are respectively connected to pin 8 and pin 21 of the first camera-end connector of the second camera, and are used to transmit the SerTFG+ / - signal input from the second camera to the main control module.

[0024] In one embodiment of this application,

[0025] Both the first board connector and the first camera connector of the first camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the first board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the first camera via a cable.

[0026] The first pin of the first board connector is used to transmit the CC signal output by the main control module for the first camera to the first camera;

[0027] The second pin of the first board connector is used to transmit the Xlink signal input from the first camera to the main control module;

[0028] The third pin of the first board connector is used to transmit the SerTC+ / - signal output by the main control module for the first camera to the first camera, and the fourth pin of the first board connector is used to transmit the SerTFG+ / - signal input by the first camera to the main control module.

[0029] In one embodiment of this application,

[0030] When the image acquisition card is in non-BASE mode, one end of the first board end connector is connected to the main control module, and the other end of the first board end connector is used to connect to the first camera end connector of the third camera via a cable.

[0031] The first board connector is used to transmit the control signal output by the main control module for the third camera to the third camera, and to transmit the image data and receipt signal input by the third camera to the main control module.

[0032] One end of the second board connector is connected to the main control module, and the other end of the second board connector is used to connect to the second camera connector of the third camera via a cable.

[0033] The second board connector is used to transmit the image data input from the third camera to the main control module.

[0034] In one embodiment of this application,

[0035] Both the second board connector and the second camera connector of the third camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the second board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the second camera connector of the third camera via a cable.

[0036] The first and fourth pins of the second board connector are used to transmit the Z-link signal input from the third camera to the main control module, and the second pin of the second board connector is used to transmit the Y-link signal input from the third camera to the main control module. The differential pair of pins connected to the first pin of the second board connector is configured as a differential input mode.

[0037] In one embodiment of this application,

[0038] The second board connector and the second camera connector of the third camera both include 26 pins, each pin having a line number of 1-26; the main control module includes a matching resistor, and each pin differential pair includes pin differential pair 17, pin differential pair 19, pin differential pair 20, pin differential pair 21, and pin differential pair 22, all configured in differential input mode;

[0039] The first pins of the second board end connector include pin 18, pin 17, pin 16, pin 15, pin 5, pin 4, pin 3, and pin 2;

[0040] One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the second camera connector of the third camera, respectively. The other end is connected to the 19N-input of pin differential pair 19, the 20N-input of pin differential pair 20, the 21N-input of pin differential pair 21, and the 22N-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1-signal, Z2-signal, ZCK-signal, and Z3-signal input from the third camera to the main control module.

[0041] One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the second camera connector of the third camera, respectively. The other end is connected to the 19P-input of pin differential pair 19, the 20P-input of pin differential pair 20, the 21P-input of pin differential pair 21, and the 22P-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1+, Z2+, ZCK+, and Z3+ signals input from the third camera to the main control module.

[0042] The second pins of the second board end connector include pins 25, 24, 23, 22, 21, 12, 11, 10, 9, and 8;

[0043] Pins 25, 24, 23, 22, and 21 of the second board connector are connected to pins 2, 3, 4, 5, and 6 of the second camera connector of the third camera, respectively, for transmitting the Y0-, Y1-, Y2-, YCK-, and Y3- signals input from the third camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board connector are connected to pins 15, 16, 17, 18, and 19 of the second camera connector of the third camera, respectively, for transmitting the Y0+, Y1+, Y2+, YCK+, and Y3+ signals input from the third camera to the main control module.

[0044] The fourth pin of the second board end connector includes pin 19 and pin 6; pin 19 and pin 6 of the second board end connector are respectively connected to pin 8 and pin 21 of the second camera end connector of the third camera, and are used to transmit the Z0+ and Z0- signals input by the third camera to the main control module.

[0045] In one embodiment of this application,

[0046] Both the first board connector and the first camera connector of the third camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the first board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the third camera via a cable.

[0047] The first pin of the first board connector is used to transmit the CC signal output by the main control module for the third camera to the third camera;

[0048] The second pin of the first board connector is used to transmit the Xlink signal input from the third camera to the main control module.

[0049] In one embodiment of this application, the main control module is further configured to configure the pins of the image acquisition card in accordance with the pin-to-signal correspondence method in any of the above-mentioned methods when the mode of the image acquisition card is switched to dual-BASE mode, and to configure the pins of the image acquisition card in accordance with the pin-to-signal correspondence method in any of the above-mentioned methods when the mode of the image acquisition card is switched to non-BASE mode.

[0050] Secondly, embodiments of this application provide a data signal transmission system, including: a first camera, a second camera, and an image acquisition card;

[0051] Both the first camera and the second camera include a first camera end connector and a second camera end connector, and the image acquisition card is the image acquisition card described in any of the above items;

[0052] The first camera end connector of the first camera is connected to the first board end connector of the image acquisition card, receives the control signal for the first camera output by the image acquisition card, and inputs the image data and receipt signal acquired by the first camera to the image acquisition card.

[0053] The first camera-end connector of the second camera is connected to the second board-end connector of the image acquisition card, receives the control signals for the second camera output by the image acquisition card, and inputs the image data and receipt signals acquired by the second camera to the image acquisition card;

[0054] The second camera end connectors of the first camera and the second camera are suspended.

[0055] Thirdly, embodiments of this application provide a data signal transmission system, including: a third camera and an image acquisition card;

[0056] The third camera includes a first camera end connector and a second camera end connector, and the image acquisition card is any of the image acquisition cards described above.

[0057] The first camera-end connector of the third camera is connected to the first board-end connector of the image acquisition card, receives the control signals for the third camera output by the image acquisition card, and inputs the image data and receipt signals acquired by the third camera to the image acquisition card.

[0058] The second camera connector of the third camera is connected to the second board connector of the image acquisition card, receives control signals for the third camera output by the image acquisition card, and inputs image data acquired by the third camera to the image acquisition card.

[0059] Beneficial effects of the embodiments in this application:

[0060] The image acquisition card provided in this application embodiment enables two cameras to be connected to one connection module of the image acquisition card simultaneously in dual-BASE mode through a connection module and a main control module, thereby reducing the resource occupation of the connection module.

[0061] Of course, implementing any product or method of this application does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0063] Figure 1 This is a schematic diagram of the structure of the first image acquisition card provided in the embodiments of this application;

[0064] Figure 2 This is a schematic diagram of the structure of the second image acquisition card provided in the embodiments of this application;

[0065] Figure 3 This is a schematic diagram of the structure of the third image acquisition card provided in the embodiments of this application;

[0066] Figure 4 This is a schematic diagram of the structure of the fourth image acquisition card provided in the embodiments of this application;

[0067] Figure 5 An example diagram illustrating the pin connection relationship in dual-channel BASE mode and single-channel Medium / Full / 80-bit mode provided in this application embodiment;

[0068] Figure 6 An example diagram illustrating the configuration change of an image acquisition card switching from FULL mode to dual-BASE mode, provided in an embodiment of this application;

[0069] Figure 7-1 This is a schematic diagram of the structure of a data signal transmission system provided in an embodiment of this application;

[0070] Figure 7-2 This application provides an example diagram of data signal transmission for a first type of data signal transmission system.

[0071] Figure 8 This is an example diagram of data signal transmission for a second data signal transmission system provided in an embodiment of this application;

[0072] Figure 9 This is a practical application connection example diagram of a data signal transmission system provided in an embodiment of this application. Detailed Implementation

[0073] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of this application.

[0074] In related technologies, an image acquisition card can only connect to one camera. In single-camera mode, one image acquisition card is needed to connect to one camera through an interface. In dual-camera mode, two image acquisition cards are needed to connect to two cameras respectively, which makes switching camera modes inconvenient. This application provides an image acquisition card and a data signal transmission system.

[0075] First, the technical terms mentioned in this application will be explained.

[0076] Camera Link (CML) is a serial communication protocol specifically designed for machine vision applications. The CML standard specifies the interface configuration between digital cameras and image acquisition cards, using unified physical connectors and pin definitions. The CML standard includes Lite mode, BASE mode, Medium mode, Full mode, and 80-bit mode.

[0077] Among them, BASE mode means that the image acquisition card uses only one connector to communicate with one camera via cable, supporting a maximum transmission width of 24 bits; Dual BASE mode means that the image acquisition card uses two connectors, each connected to one camera via cable, so that the image acquisition card can connect to two cameras through two connectors, but the two cameras communicate in BASE mode; and so on, Multi BASE mode means that the image acquisition card can connect to multiple cameras through multiple connectors, each camera communicating in BASE mode.

[0078] In addition, Full mode means that the image acquisition card uses two connectors to communicate with a camera via a cable, supporting a maximum transmission width of 64 bits; Medium mode means that the image acquisition card uses two connectors to communicate with a camera via a cable, supporting a maximum transmission width of 48 bits; 80-bit mode means that the image acquisition card uses two connectors to communicate with a camera via a cable, supporting a maximum transmission width of 80 bits.

[0079] The following detailed description uses specific examples.

[0080] like Figure 1As shown in the figure, this application provides a structural schematic diagram of a first type of image acquisition card, including: at least one connection module and a main control module, wherein the connection module includes a first board end connector and a second board end connector;

[0081] When the image acquisition card is in dual-BASE mode, one end of the first board connector is connected to the main control module, and the other end of the first board connector is used to connect to the first camera connector of the first camera via a cable.

[0082] The first board connector is used to transmit the control signal for the first camera output by the main control module to the first camera, and to transmit the image data and receipt signal input by the first camera to the main control module.

[0083] One end of the second board connector is connected to the main control module, and the other end of the second board connector is used to connect to the first camera connector of the second camera via a cable.

[0084] The second board connector is used to transmit the control signals output by the main control module for the second camera to the second camera, and to transmit the image data and receipt signals input by the second camera to the main control module.

[0085] The image acquisition card is a Camera Link (Camera Link compliant) acquisition card. The first and second board-side connectors on the image acquisition card are both Camera Link connectors located on the board end, connecting to the main control module via Camera Link0 (link 0, connector 0) and Camera Link1 (link 1, connector 1) on the board end, respectively. The main control module includes the image acquisition card's processor, specifically an FPGA (Field Programmable Gate Array) processor. The FPGA processor's pins are configurable, enabling the main control module to configure and switch between dual-channel BASE mode and single-channel Medium / Full / 80-bit mode.

[0086] Dual-BASE mode refers to dual-camera mode. The camera mode is configured through the main control module. The first camera and the second camera are two cameras that are simultaneously connected to the image acquisition card in dual-BASE mode. The first camera end connector of the first camera and the first camera end connector of the second camera are both Camera Link connectors located at the camera end. They are connected to the first board end connector and the second board end connector respectively through Camera Link0 (link 0, connector 0) of the first camera and Camera Link0 (link 0, connector 0) of the second camera, which is the main link used for serial communication enumeration as specified in the CML protocol.

[0087] The control signals output by the main control module include control commands, serial port signals, configuration signals, etc., output by the main control module to the first camera and the second camera respectively. The image data input by the first camera and the second camera are the image data acquired by the first camera and the second camera, which are input to the main control module for processing. The acknowledgment signal is the feedback signal from the first camera and the second camera to the control signals output by the main control module.

[0088] When the image acquisition card is in dual-base mode, the other end of the first board connector, which is connected to the main control module, is used to connect to the first camera via a cable. This transmits the control signals output by the main control module to the first camera, and also transmits the image data and receipt signals acquired and input by the first camera to the main control module for processing. The other end of the second board connector, which is connected to the main control module, is used to connect to the second camera via a cable. This transmits the control signals output by the main control module to the second camera, and also transmits the image data and receipt signals acquired and input by the second camera to the main control module for processing.

[0089] The image acquisition card includes one or more connection modules. Each connection module includes two connectors: a first board-side connector and a second board-side connector. Each connection module can connect to two cameras, and the connection relationship between each connection module and the two cameras is consistent. Therefore, when the image acquisition card is in dual-base mode, it can connect to two cameras (the first camera and the second camera) using one connection module. When the image acquisition card is in 4-base mode, it can connect to four cameras using two connection modules, and so on. No limit is set here.

[0090] For example, when the image acquisition card is in 4BASE mode, the image acquisition card includes two connection modules and a main control module. The two connection modules are a first connection module and a second connection module, and each connection module includes a first board end connector and a second board end connector.

[0091] One end of the first board-end connector of the first connection module is connected to the main control module, and the other end is used to connect to the first camera-end connector of the first camera via a cable. The first board-end connector of the first connection module is used to transmit the control signals output by the main control module for the first camera to the first camera, and to transmit the image data and receipt signals input by the first camera to the main control module. One end of the second board-end connector of the first connection module is connected to the main control module, and the other end is used to connect to the first camera-end connector of the second camera via a cable. The second board-end connector of the first connection module is used to transmit the control signals output by the main control module for the second camera to the second camera, and to transmit the image data and receipt signals input by the second camera to the main control module.

[0092] One end of the first board connector of the second connection module is connected to the main control module, and the other end is used to connect to the first camera connector of the third camera via a cable. The first board connector of the second connection module is used to transmit the control signals output by the main control module for the third camera to the third camera, and to transmit the image data and receipt signals input by the third camera to the main control module. One end of the second board connector of the second connection module is connected to the main control module, and the other end is used to connect to the first camera connector of the fourth camera via a cable. The second board connector of the second connection module is used to transmit the control signals output by the main control module for the fourth camera to the fourth camera, and to transmit the image data and receipt signals input by the fourth camera to the main control module.

[0093] The image acquisition card provided in this application embodiment enables two cameras to be connected to one image acquisition card simultaneously in dual-BASE mode through a connection module and a main control module, thereby reducing the resource consumption of the connection module.

[0094] In one embodiment of this application, such as Figure 2 As shown, a structural schematic diagram of a second type of image acquisition card is provided. The second board end connector and the first camera end connector of the second camera both include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the second board end connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera end connector of the second camera.

[0095] The first pin of the second board connector is used to transmit the CC signal output by the main control module for the second camera to the second camera, wherein the differential pair of pins connected to the first pin of the second board connector is configured in differential output mode.

[0096] The second pin of the second board connector is used to transmit the Xlink signal input from the second camera to the main control module;

[0097] The third pin of the second board connector is used to transmit the SERTC+ / - signal output by the main control module for the second camera to the second camera, wherein the differential pair of pins connected to the third pin of the second board connector is configured in differential output mode;

[0098] The fourth pin of the second board connector is used to transmit the SerTFG+ / - signal input from the second camera to the main control module.

[0099] The CC (Camera Control) signal is the control signal transmitted from the image acquisition card to the camera based on the main control module. It is a differential signal that can be customized for various applications, such as providing a trigger signal to the camera. The Xlink signal is the signal transmitted by the underlying differential physical signal group used to transmit image data. Specifically, it includes four differential data signals (X1+ / -, X2+ / -, X3+ / -, X0+ / - signals) and one clock signal (XCLK+ / - signal). The SerTC+ / - signal (Differential Pair With Serial Communications To The Camera) is used to transmit differential serial signals sent from the image acquisition card to the camera, such as control commands issued by the main control module to a second camera. Specifically, it is implemented through the Type-C serial port (a type of serial port) connected to the pins on the image acquisition card. The SerTFG+ / - signal is the TFG serial port signal (Differential Pair With Serial Communications To The Framegrabber, a differential serial signal for serial communication with the image acquisition card). It is used to transmit differential serial signals sent by the camera to the image acquisition card, such as the acknowledgment command (i.e., acknowledgment signal) of the second camera in response to control commands. This is achieved through the TFG port (a type of connection port) on the second camera that is connected to the pin.

[0100] The image acquisition card provided in this application conforms to the CML protocol, that is, the first pin is used to transmit the CC signal in the 4-hop path, and the second pin is used to transmit four sets of Xlink signals.

[0101] The main control module includes multiple pairs of differential pins. Except for the differential pin pairs connected to the first and third pins of the second board connector, which are configured as differential outputs, all other differential pin pairs are configured as differential inputs.

[0102] In one embodiment of this application, the image acquisition card further includes a matching resistor. Specifically, it can be a matching resistor controlled by the program in the main control module, or it can be a matching resistor externally connected to the image acquisition card. For example, the value of the matching resistor can be 100Ω, which is used to connect to the channel where the signal input from the second camera is located, that is, to the end of the main control module connected to the second and fourth pins of the second board connector.

[0103] The image acquisition card provided in this application embodiment enables the connection of different signal transmission paths between the image acquisition card and the second camera through multiple pins of the connection module and the main control module, thereby realizing the simultaneous connection of two cameras to one image acquisition card in dual-BASE mode, reducing the resource occupation of the connection module.

[0104] In one embodiment of this application, both the second board-end connector and the first camera-end connector of the second camera include 26 pins, each pin having a line number from 1 to 26. It should be emphasized that the line numbering of pins 1-26, pin differential pairs 1-26, etc., is only used to distinguish each pin / pin differential pair and does not have an actual sorting function; each line number can be set according to the actual application.

[0105] The main control module includes pin differential pairs 17, 19, 20, 21, and 22, all of which are configured in differential output mode.

[0106] The first pins of the second board end connector include pin 18, pin 17, pin 16, pin 15, pin 5, pin 4, pin 3, and pin 2;

[0107] One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the first camera connector of the second camera, respectively. The other end is connected to the 19N- output of pin differential pair 19, the 20N- output of pin differential pair 20, the 21N- output of pin differential pair 21, and the 22N- output of pin differential pair 22 of the main control module, respectively, for transmitting the CC1-, CC2+, CC3-, and CC4+ signals output by the main control module for the second camera to the second camera.

[0108] One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the first camera connector of the second camera, respectively, and the other end is connected to the 19P- output of pin differential pair 19, the 20P- output of pin differential pair 20, the 21P- output of pin differential pair 21, and the 22P- output of pin differential pair 22 of the main control module, respectively, for transmitting the CC1+, CC2-, CC3+, and CC4- signals output by the main control module for the first camera to the second camera;

[0109] The second pins of the second board end connector include pins 25, 24, 23, 22, 21, 12, 11, 10, 9, and 8;

[0110] Pins 25, 24, 23, 22, and 21 of the second board-side connector are respectively connected to pins 2, 3, 4, 5, and 6 of the first camera-side connector of the second camera, for transmitting the X0-, X1-, X2-, XCK-, and X3- signals input from the second camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board-side connector are respectively connected to pins 15, 16, 17, 18, and 19 of the first camera-side connector of the second camera, for transmitting the X0+, X1+, X2+, XCK+, and X3+ signals input from the second camera to the main control module.

[0111] The third pin of the second board end connector includes pin 20 and pin 7; one end of pin 20 and pin 7 of the second board end connector is connected to pin 7 and pin 20 of the first camera end connector of the second camera, respectively, and the other end is connected to the 17N-output and 17P-output of the pin differential pair 17 of the main control module, respectively, for transmitting the SerTC+ / - signal output by the main control module for the second camera to the second camera;

[0112] The fourth pin of the second board-end connector includes pin 19 and pin 6; pin 19 and pin 6 of the second board-end connector are respectively connected to pin 8 and pin 21 of the first camera-end connector of the second camera, and are used to transmit the SerTFG+ / - signal input from the second camera to the main control module.

[0113] The ends of pins 25, 24, 23, 22, and 21 of the aforementioned second board connector that are connected to the main control module are respectively connected to the 12N-input of pin differential pair 12, the 13N-input of pin differential pair 13, the 14N-input of pin differential pair 14, the 15N-input of pin differential pair 15, and the 16N-input of pin differential pair 16 of the main control module.

[0114] The end of the second board connector whose pins 12, 11, 10, 9, and 8 are connected to the main control module is connected to the 12P-input of pin differential pair 12, the 13P-input of pin differential pair 13, the 14P-input of pin differential pair 14, the 15P-input of pin differential pair 15, and the 16P-input of pin differential pair 16 of the main control module, respectively.

[0115] The ends of the second board connector, pins 19 and 6, which are connected to the main control module, are respectively connected to the 18N-input of the 18N differential pair and the 18P-input of the 18 differential pair of the main control module.

[0116] In one embodiment of this application, pins 1, 13, 14, and 26 of the second board end connector are respectively connected to pins 1, 13, 14, and 26 of the first camera end connector of the second camera, for connecting the internal shielded signal to the digital ground (Innershield-Na) of the second camera.

[0117] The image acquisition card provided in this application embodiment, by specifically defining multiple pins of the connection module, the main control module, and the second camera, provides greater feasibility for connecting two cameras to one image acquisition card simultaneously in dual-BASE mode.

[0118] In one embodiment of this application, both the first board-end connector and the first camera-end connector of the first camera include multiple pins, and the main control module includes multiple pairs of differential pins. One end of the pin of the first board-end connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera-end connector of the first camera via a cable.

[0119] The first pin of the first board connector is used to transmit the CC signal output by the main control module for the first camera to the first camera;

[0120] The second pin of the first board connector is used to transmit the Xlink signal input from the first camera to the main control module;

[0121] The third pin of the first board connector is used to transmit the SerTC+ / - signal output by the main control module for the first camera to the first camera, and the fourth pin of the first board connector is used to transmit the SerTFG+ / - signal input by the first camera to the main control module.

[0122] The main control module includes multiple pairs of differential pins, and all differential pin pairs connected to the pins of the first board connector are configured in differential input mode.

[0123] In one embodiment of this application, the image acquisition card further includes a matching resistor. Specifically, it can be a matching resistor controlled by the program in the main control module, or it can be a matching resistor externally connected to the image acquisition card. For example, the value of the matching resistor can be 100Ω, which is used to connect to the pins of the first board end connector, that is, to the end of the main control module connected to the pins of the first board end connector.

[0124] The image acquisition card provided in this application embodiment enables the connection of different signal transmission paths between the image acquisition card and the first camera through multiple pins of the connection module and the main control module, thereby realizing the simultaneous connection of two cameras to one image acquisition card in dual-BASE mode, reducing the resource occupation of the connection module.

[0125] In one example, the pin connections between the board-end connectors and the camera connectors, as well as the differential pin pairs between the pins of the board-end connectors and the main control module, can all be achieved through cable connections.

[0126] For example, when the image acquisition card is in 4BASE mode, the first board end connector of the first connection module of the image acquisition card is used to connect to the first camera, and the second board end connector of the first connection module is used to connect to the second camera; the first board end connector of the second connection module of the image acquisition card is used to connect to the third camera, and the second board end connector of the second connection module is used to connect to the fourth camera. The pin and signal correspondence of the first connection module and the second connection module of the image acquisition card are configured in the same way as the connection modules of the image acquisition card in the dual-BASE mode described above.

[0127] In one embodiment of this application, such as Figure 3 As shown, when the image acquisition card is in non-BASE mode, one end of the first board connector is connected to the main control module, and the other end of the first board connector is used to connect to the first camera connector of the third camera via a cable.

[0128] The first board connector is used to transmit the control signal output by the main control module for the third camera to the third camera, and to transmit the image data and receipt signal input by the third camera to the main control module.

[0129] One end of the second board connector is connected to the main control module, and the other end of the second board connector is used to connect to the second camera connector of the third camera via a cable.

[0130] The second board connector is used to transmit the control signals output by the main control module for the third camera to the third camera, and to transmit the image data input by the third camera to the main control module.

[0131] Non-BASE mode refers to single-channel camera mode. Specifically, the solution of this application embodiment can be applied to various single-channel camera modes in non-BASE mode, such as Full mode, Medium mode, 80-bit mode and other single-channel camera modes.

[0132] The third camera is a single camera connected to the image acquisition card in non-BASE mode. The first camera end connector and the second camera end connector of the third camera are both Camera Link connectors located at the camera end. They are connected to the first board end connector and the second board end connector through Camera Link0 (link 0, connector 0) and Camera Link1 (link 1, connector 1) of the third camera, respectively.

[0133] The control signals output by the main control module include control commands, serial port signals, and configuration signals output by the main control module to the third camera. The third input image data is the image data acquired by the third camera and input to the main control module for processing. The acknowledgment signal is the feedback signal from the third camera to the control signals output by the main control module.

[0134] When the image acquisition card is in non-BASE mode, the other end of the first board connector of the image acquisition card, which is connected to the main control module, is used to connect to the first camera connector of the third camera. This transmits the control signals output by the main control module to the third camera, as well as the image data and receipt signals acquired and input by the third camera, to the main control module for processing. The other end of the second board connector, which is connected to the main control module, is used to connect to the second camera connector of the third camera. This transmits the control signals output by the main control module to the third camera, as well as the image data and receipt signals acquired and input by the third camera, to the main control module for processing.

[0135] The image acquisition card includes one or more connection modules, each containing two connectors: a first board-side connector and a second board-side connector. When the image acquisition card is in non-BASE mode, each connection module can connect to one camera, and the connection relationship between each connection module and its corresponding camera is consistent. Therefore, when the image acquisition card includes one connection module, it can connect to one camera (a third camera) in non-BASE mode. When the image acquisition card includes multiple connection modules, it can connect to multiple cameras in non-BASE mode, and so on; no limitation is imposed here.

[0136] The image acquisition card provided in this application embodiment enables the connection between a single camera and the image acquisition card in non-BASE mode through a connection module and a main control module, thereby reducing the resource consumption of the connection module.

[0137] In one embodiment of this application, such as Figure 4 As shown, both the second board connector and the second camera connector of the third camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the second board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the second camera connector of the third camera via a cable.

[0138] The first and fourth pins of the second board connector are used to transmit the ZLINK signal input from the third camera to the main control module, and the second pin of the second board connector is used to transmit the YLINK signal input from the third camera to the main control module. The differential pair of pins connected to the first pin of the second board connector is configured as differential input mode.

[0139] The third pin of the second board connector is used to transmit the SerTC+ / - signal output by the main control module for the third camera to the third camera, wherein the differential pair of pins connected to the third pin of the second board connector is configured as differential input mode.

[0140] In one embodiment of this application,

[0141] Both the first board connector and the first camera connector of the third camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the first board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the third camera via a cable.

[0142] The first pin of the first board connector is used to transmit the CC signal output by the main control module for the third camera to the third camera;

[0143] The second pin of the first board connector is used to transmit the Xlink signal input from the third camera to the main control module;

[0144] The third pin of the first board connector is used to transmit the SerTC+ / - signal output by the main control module for the third camera to the third camera, and the fourth pin of the first board connector is used to transmit the SerTFG+ / - signal input by the third camera to the main control module.

[0145] The image acquisition card provided in this embodiment conforms to the CML protocol. Link0, as the main Link, is used for serial communication enumeration, including serial port signals, Xlink signals, and four CC signals. Link1 is used for bandwidth expansion, including Ylink signals and Zlink signals. Specifically, the first pin of the first board connector is used to transmit the CC signals in the four-hop path, the second pin of the first board connector is used to transmit four sets of Xlink signals, the first and fourth pins of the second board connector are used to transmit four sets of Zlink signals, and the second pin of the second board connector is used to transmit four sets of Ylink signals.

[0146] The main control module includes multiple pairs of differential pins, all configured in differential input mode.

[0147] In one embodiment of this application, the image acquisition card further includes a matching resistor. Specifically, it can be a matching resistor controlled by the program in the main control module, or it can be a matching resistor externally connected to the image acquisition card. For example, the value of the matching resistor can be 100Ω, which is used to connect to the channel where the signal input from the third camera is located, that is, to the end of the main control module connected to the second pin of the first board end connector, the first pin, the second pin, and the fourth pin of the second board end connector.

[0148] The image acquisition card provided in this application embodiment enables the connection of different signal transmission paths between the image acquisition card and the third camera through multiple pins of the connection module and the main control module, thereby realizing the switching of a single camera to the image acquisition card in non-BASE mode and reducing the occupation of connection module resources.

[0149] In one embodiment of this application,

[0150] Both the second board connector and the second camera connector of the third camera include 26 pins, each pin having a line number from 1 to 26. It should be emphasized that the line numbering of pins 1 to 26, pin differential pairs 1 to 26, etc., is only used to distinguish each pin / pin differential pair and does not have an actual sorting function. Each line number can be set according to the actual situation.

[0151] The main control module includes a matching resistor, and each of the pin differential pairs includes pin differential pair 17, pin differential pair 19, pin differential pair 20, pin differential pair 21, and pin differential pair 22, all of which are configured as differential input mode.

[0152] The first pins of the second board end connector include pin 18, pin 17, pin 16, pin 15, pin 5, pin 4, pin 3, and pin 2;

[0153] One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the second camera connector of the third camera, respectively. The other end is connected to the 19N-input of pin differential pair 19, the 20N-input of pin differential pair 20, the 21N-input of pin differential pair 21, and the 22N-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1-signal, Z2-signal, ZCK-signal, and Z3-signal input from the third camera to the main control module.

[0154] One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the second camera connector of the third camera, respectively. The other end is connected to the 19P-input of pin differential pair 19, the 20P-input of pin differential pair 20, the 21P-input of pin differential pair 21, and the 22P-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1+, Z2+, ZCK+, and Z3+ signals input from the third camera to the main control module.

[0155] The second pins of the second board end connector include pins 25, 24, 23, 22, 21, 12, 11, 10, 9, and 8;

[0156] Pins 25, 24, 23, 22, and 21 of the second board connector are connected to pins 2, 3, 4, 5, and 6 of the second camera connector of the third camera, respectively, for transmitting the Y0-, Y1-, Y2-, YCK-, and Y3- signals input from the third camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board connector are connected to pins 15, 16, 17, 18, and 19 of the second camera connector of the third camera, respectively, for transmitting the Y0+, Y1+, Y2+, YCK+, and Y3+ signals input from the third camera to the main control module.

[0157] The third pin of the second board end connector includes pin 20 and pin 7; one end of pin 20 and pin 7 of the second board end connector is connected to pin 7 and pin 20 of the second camera end connector of the third camera, respectively, and the other end is connected to the 17N-input and 17P-input of the differential pair 17 of the main control module, respectively, for connecting the matching resistor in the main control module;

[0158] The fourth pin of the second board end connector includes pin 19 and pin 6; pin 19 and pin 6 of the second board end connector are respectively connected to pin 8 and pin 21 of the second camera end connector of the third camera, and are used to transmit the Z0+ and Z0- signals input by the third camera to the main control module.

[0159] The ends of pins 25, 24, 23, 22, and 21 of the aforementioned second board connector that are connected to the main control module are respectively connected to the 12N-input of pin differential pair 12, the 13N-input of pin differential pair 13, the 14N-input of pin differential pair 14, the 15N-input of pin differential pair 15, and the 16N-input of pin differential pair 16 of the main control module.

[0160] The end of the second board connector whose pins 12, 11, 10, 9, and 8 are connected to the main control module is connected to the 12P-input of pin differential pair 12, the 13P-input of pin differential pair 13, the 14P-input of pin differential pair 14, the 15P-input of pin differential pair 15, and the 16P-input of pin differential pair 16 of the main control module, respectively.

[0161] The ends of the second board connector, pins 19 and 6, which are connected to the main control module, are respectively connected to the 18N-input of the 18N differential pair and the 18P-input of the 18 differential pair of the main control module.

[0162] In one embodiment of this application, pins 1, 13, 14, and 26 of the second board end connector are respectively connected to pins 1, 13, 14, and 26 of the second camera end connector of the third camera, for connecting the internal shielded signal to the digital ground (Innershield-Na) of the third camera.

[0163] In one embodiment of this application, the connection method between the pins of the first camera connector of the third camera in non-BASE mode and the pins of the first board connector of the image acquisition card is the same as the connection method between the pins of the first camera connector of the first camera and the pins of the first board connector of the image acquisition card in dual-BASE mode; the connection method between the pins of the first board connector and the differential pin pairs of the main control module in non-BASE mode is the same as the connection method between the pins of the first board connector and the differential pin pairs of the main control module in dual-BASE mode. The following example uses the third camera in non-BASE mode.

[0164] Both the first board connector and the third camera's first camera connector include 26 pins, each with a pin number from 1 to 26. It is important to emphasize that the pin numbers (pin 1-pin 26, differential pair 1-pin differential pair 26, etc.) are only used to distinguish between each pin / differential pair and do not have any actual sorting function. The pin numbers can be set according to the actual application. The main control module includes multiple differential pin pairs, all configured in differential input mode.

[0165] One end of pins 18, 17, 16, and 15 of the first board connector is connected to pins 9, 10, 11, and 12 of the first camera connector of the third camera, respectively. The other end is connected to the 8N-input of pin differential pair 8, the 9N-input of pin differential pair 9, the 10N-input of pin differential pair 10, and the 11N-input of pin differential pair 11 of the main control module, respectively. This is used to transmit the CC1-, CC2+, CC3-, and CC4+ signals output by the main control module for the third camera to the third camera.

[0166] One end of pins 5, 4, 3, and 2 of the first board connector is connected to pins 22, 23, 24, and 25 of the first camera connector of the third camera, respectively. The other end is connected to the 8P-input of pin differential pair 8, the 9P-input of pin differential pair 9, the 10P-input of pin differential pair 10, and the 11P-input of pin differential pair 11 of the main control module, respectively. This is used to transmit the CC1+, CC2-, CC3+, and CC4- signals output by the main control module for the third camera to the third camera.

[0167] One end of pins 25, 24, 23, 22, and 21 of the first board connector is connected to pins 2, 3, 4, 5, and 6 of the first camera connector of the third camera, respectively. The other end is connected to the 1N-input of pin differential pair 1, the 2N-input of pin differential pair 2, the 3N-input of pin differential pair 3, the 4N-input of pin differential pair 4, and the 5N-input of pin differential pair 5 of the main control module. This is used to transmit the X0-, X1-, X2-, XCK-, and X3- signals input from the third camera to the main control module.

[0168] One end of pins 12, 11, 10, 9, and 8 of the first board connector is connected to pins 15, 16, 17, 18, and 19 of the first camera connector of the third camera, respectively. The other end is connected to the 1P-input of pin differential pair 1, the 2P-input of pin differential pair 2, the 3P-input of pin differential pair 3, the 4P-input of pin differential pair 4, and the 5P-input of pin differential pair 5 of the main control module, respectively, for transmitting the X0+, X1+, X2+, XCK+, and X3+ signals input from the third camera to the main control module.

[0169] One end of pins 20 and 7 of the first board connector is connected to pins 7 and 20 of the first camera connector of the third camera, respectively, and the other end is connected to the 6N-output and 6P-output of the differential pair 6 of the main control module, respectively, for transmitting the SerTC+ / - signal output by the main control module for the third camera to the third camera.

[0170] One end of pins 19 and 6 of the first board connector is connected to pins 8 and 21 of the first camera connector of the third camera, respectively, and the other end is connected to the 7N-input of the differential pair 7N and the 7P-input of the differential pair 7 of the main control module, respectively, for transmitting the SerTFG+ / - signal input from the third camera to the main control module.

[0171] Pins 1, 13, 14, and 26 of the first board connector are connected to pins 1, 13, 14, and 26 of the first camera connector of the third camera, respectively, to connect the internal shielded signal to the digital ground (Innershield-Na) of the third camera.

[0172] like Figure 5The diagram illustrates pin connections for dual-channel BASE mode and single-channel Medium / Full / 80-bit mode, including pin names and their corresponding signal definitions. Pin 1 represents the connection on the link where the first board connector is located, pin 2 represents the connection on the link where the second board connector is located, the acquisition card connectors represent the first and second board connectors, and the acquisition card FPGA pin resource definition represents the differential pin pair configuration of the main control module.

[0173] The image acquisition card provided in this application embodiment, by specifically defining multiple pins of the connection module, the main control module, and the third camera, provides greater feasibility for connecting a single camera to the image acquisition card when switching to non-BASE mode.

[0174] In one embodiment of this application, the main control module is further configured to configure the pins of the image acquisition card according to the pin-to-signal correspondence method in any of the dual-base modes when the image acquisition card is switched to dual-base mode, and to configure the pins of the image acquisition card according to the pin-to-signal correspondence method in any of the non-base modes when the image acquisition card is switched to non-base mode. For example, when the image acquisition card is switched to 4-base mode, the pins of the image acquisition card are configured according to the pin-to-signal correspondence method in any of the 4-base modes, and so on.

[0175] It should be emphasized that the pin numbers from pin 1 to pin 26 and pin differential pair 1 to pin differential pair 26 are only used to distinguish each pin / pin differential pair and do not have any actual sorting function. Each pin number can be set according to the actual application.

[0176] Specifically, when the image acquisition card is switched to dual-BASE mode, all differential pairs of the main control module, including differential pair 17, differential pair 19, differential pair 20, differential pair 21, and differential pair 22, are configured as differential output mode.

[0177] One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the first camera connector of the second camera, respectively. The other end is connected to the 19N- output of pin differential pair 19, the 20N- output of pin differential pair 20, the 21N- output of pin differential pair 21, and the 22N- output of pin differential pair 22 of the main control module, respectively. This is used to transmit the CC1-, CC2+, CC3-, and CC4+ signals output by the main control module for the second camera to the second camera.

[0178] One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the first camera connector of the second camera, respectively. The other end is connected to the 19P- output of pin differential pair 19, the 20P- output of pin differential pair 20, the 21P- output of pin differential pair 21, and the 22P- output of pin differential pair 22 of the main control module, respectively. This is used to transmit the CC1+, CC2-, CC3+, and CC4- signals output by the main control module for the first camera to the second camera.

[0179] Pins 25, 24, 23, 22, and 21 of the second board connector are connected to pins 2, 3, 4, 5, and 6 of the first camera connector of the second camera, respectively, to transmit the X0-, X1-, X2-, XCK-, and X3- signals input from the second camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board connector are connected to pins 15, 16, 17, 18, and 19 of the first camera connector of the second camera, respectively, to transmit the X0+, X1+, X2+, XCK+, and X3+ signals input from the second camera to the main control module.

[0180] One end of pins 20 and 7 of the second board connector is connected to pins 7 and 20 of the first camera connector of the second camera, respectively, and the other end is connected to the 17N-output and 17P-output of the differential pair 17 of the main control module, respectively, to transmit the SerTC+ / - signal output by the main control module for the second camera to the second camera.

[0181] Pins 19 and 6 of the second board connector are connected to pins 8 and 21 of the first camera connector of the second camera, respectively, to transmit the SerTFG+ / - signal input from the second camera to the main control module.

[0182] The end of the second board connector whose pins 25, 24, 23, 22, and 21 are connected to the main control module is connected to the 12N-input of pin differential pair 12, the 13N-input of pin differential pair 13, the 14N-input of pin differential pair 14, the 15N-input of pin differential pair 15, and the 16N-input of pin differential pair 16 of the main control module, respectively.

[0183] The end of the second board connector whose pins 12, 11, 10, 9, and 8 are connected to the main control module is connected to the 12P-input of pin differential pair 12, the 13P-input of pin differential pair 13, the 14P-input of pin differential pair 14, the 15P-input of pin differential pair 15, and the 16P-input of pin differential pair 16 of the main control module, respectively.

[0184] The ends of the second board connector, pins 19 and 6, which are connected to the main control module, are respectively connected to the 18N-input of the 18N differential pair and the 18P-input of the 18 differential pair of the main control module.

[0185] Pins 1, 13, 14, and 26 of the second board connector are connected to pins 1, 13, 14, and 26 of the first camera connector of the second camera, respectively, to connect the internal shielded signal to the digital ground (Innershield-Na) of the second camera.

[0186] Both the first board connector and the first camera connector of the first camera include multiple pins. One end of the pins of the first board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the first camera. The first pin of the first board connector is used to transmit the CC signal output by the main control module for the first camera to the first camera. The second pin of the first board connector is used to transmit the Xlink signal input by the first camera to the main control module. The third pin of the first board connector is used to transmit the SerTC+ / - signal output by the main control module for the first camera to the first camera. The fourth pin of the first board connector is used to transmit the SerTFG+ / - signal input by the first camera to the main control module.

[0187] The main control module includes multiple pairs of differential pins, and all differential pin pairs connected to the pins of the first board connector are configured in differential input mode. The image acquisition card also includes a matching resistor, which can be a matching resistor controlled by the program in the main control module or an external matching resistor connected to the image acquisition card. For example, the value of the matching resistor can be 100Ω, used to connect to the pins of the first board connector, that is, to the end of the first board connector that connects to the main control module.

[0188] When the image acquisition card is switched to non-BASE mode, the main control module includes matching resistors, and each pin differential pair, including pin differential pair 17, pin differential pair 19, pin differential pair 20, pin differential pair 21, and pin differential pair 22, is configured as differential input mode. One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the second camera connector of the third camera, respectively. The other end is connected to the 19N-input of pin differential pair 19, the 20N-input of pin differential pair 20, the 21N-input of pin differential pair 21, and the 22N-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1-, Z2-, ZCK-, and Z3- signals input from the third camera to the main control module.

[0189] One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the second camera connector of the third camera, respectively. The other end is connected to the 19P-input of pin differential pair 19, the 20P-input of pin differential pair 20, the 21P-input of pin differential pair 21, and the 22P-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1+, Z2+, ZCK+, and Z3+ signals input from the third camera to the main control module.

[0190] Pins 25, 24, 23, 22, and 21 of the second board connector are connected to pins 2, 3, 4, 5, and 6 of the second camera connector of the third camera, respectively, to transmit the Y0-, Y1-, Y2-, YCK-, and Y3- signals input from the third camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board connector are connected to pins 15, 16, 17, 18, and 19 of the second camera connector of the third camera, respectively, to transmit the Y0+, Y1+, Y2+, YCK+, and Y3+ signals input from the third camera to the main control module.

[0191] One end of pins 20 and 7 of the second board connector is connected to pins 7 and 20 of the second camera connector of the third camera, respectively, and the other end is connected to the 17N-input and 17P-input of the differential pair 17 of the main control module, respectively, for connecting the matching resistor in the main control module; pins 19 and 6 of the second board connector are connected to pins 8 and 21 of the second camera connector of the third camera, respectively, for transmitting the Z0+ and Z0- signals input from the third camera to the main control module.

[0192] The end of the second board connector whose pins 25, 24, 23, 22, and 21 are connected to the main control module is connected to the 12N-input of pin differential pair 12, the 13N-input of pin differential pair 13, the 14N-input of pin differential pair 14, the 15N-input of pin differential pair 15, and the 16N-input of pin differential pair 16 of the main control module, respectively.

[0193] The end of the second board connector whose pins 12, 11, 10, 9, and 8 are connected to the main control module is connected to the 12P-input of pin differential pair 12, the 13P-input of pin differential pair 13, the 14P-input of pin differential pair 14, the 15P-input of pin differential pair 15, and the 16P-input of pin differential pair 16 of the main control module, respectively.

[0194] Pins 19 and 6 of the second board connector are connected to the main control module and are respectively connected to the 18N-input and 18P-input of the differential pair 18N of the main control module. Pins 1, 13, 14, and 26 of the second board connector are connected to pins 1, 13, 14, and 26 of the second camera connector of the third camera, respectively, to connect the internal shielded signal to the digital ground (Innershield-Na) of the third camera.

[0195] The main control module includes multiple pairs of differential pins, all configured in differential input mode. One end of pins 18, 17, 16, and 15 of the first board connector is connected to pins 9, 10, 11, and 12 of the first camera connector of the third camera, respectively. The other end is connected to the 8N-input of differential pin pair 8, the 9N-input of differential pin pair 9, the 10N-input of differential pin pair 10, and the 11N-input of differential pin pair 11 of the main control module, respectively. This is used to transmit the CC1-, CC2+, CC3-, and CC4+ signals output by the main control module for the third camera to the third camera.

[0196] One end of pins 5, 4, 3, and 2 of the first board connector is connected to pins 22, 23, 24, and 25 of the first camera connector of the third camera, respectively. The other end is connected to the 8P-input of pin differential pair 8, the 9P-input of pin differential pair 9, the 10P-input of pin differential pair 10, and the 11P-input of pin differential pair 11 of the main control module, respectively. This is used to transmit the CC1+, CC2-, CC3+, and CC4- signals output by the main control module for the third camera to the third camera.

[0197] One end of pins 25, 24, 23, 22, and 21 of the first board connector is connected to pins 2, 3, 4, 5, and 6 of the first camera connector of the third camera, respectively. The other end is connected to the 1N-input of pin differential pair 1, the 2N-input of pin differential pair 2, the 3N-input of pin differential pair 3, the 4N-input of pin differential pair 4, and the 5N-input of pin differential pair 5 of the main control module. This is used to transmit the X0-, X1-, X2-, XCK-, and X3- signals input from the third camera to the main control module.

[0198] One end of pins 12, 11, 10, 9, and 8 of the first board connector is connected to pins 15, 16, 17, 18, and 19 of the first camera connector of the third camera, respectively. The other end is connected to the 1P-input of pin differential pair 1, the 2P-input of pin differential pair 2, the 3P-input of pin differential pair 3, the 4P-input of pin differential pair 4, and the 5P-input of pin differential pair 5 of the main control module, respectively, for transmitting the X0+, X1+, X2+, XCK+, and X3+ signals input from the third camera to the main control module.

[0199] One end of pins 20 and 7 of the first board connector is connected to pins 7 and 20 of the first camera connector of the third camera, respectively, and the other end is connected to the 6N-output and 6P-output of the differential pair 6 of the main control module, respectively, for transmitting the SerTC+ / - signal output by the main control module for the third camera to the third camera.

[0200] One end of pins 19 and 6 of the first board connector is connected to pins 8 and 21 of the first camera connector of the third camera, respectively, and the other end is connected to the 7N-input of the differential pair 7N and the 7P-input of the differential pair 7 of the main control module, respectively, for transmitting the SerTFG+ / - signal input from the third camera to the main control module.

[0201] Pins 1, 13, 14, and 26 of the first board connector are connected to pins 1, 13, 14, and 26 of the first camera connector of the third camera, respectively, to connect the internal shielded signal to the digital ground (Innershield-Na) of the third camera.

[0202] like Figure 6 As shown in the figure, this application embodiment also provides an example diagram of the configuration change of an image acquisition card from Full mode to dual-BASE mode.

[0203] Full mode, also known as Fulllink mode, maintains the TC serial port used for transmitting SerTC+ / - signals. When Zlink does not use TC, it defaults to a 100Ω matching resistor. When Zlink reception is changed to CC output, all matching resistors need to be removed. If the matching resistor is program-controlled, it should be removed programmatically; if it is an external resistor, it should be removed directly. The input port should also be changed to an output port. Simultaneously, a logic inversion operation should be performed on the differential lines of pins 4 / 17 and 2 / 15 of the main control module.

[0204] The image acquisition card provided in this application embodiment, by configuring the main control module and adjusting the connection between the connection module and the camera, enables the same image acquisition card to directly switch between different numbers of cameras in dual-BASE mode and non-BASE mode, thereby improving the efficiency of camera mode switching and reducing the resource occupation of the connection module.

[0205] like Figure 7-1 As shown in the figure, this application embodiment also provides a structural schematic diagram of a first data signal transmission system, including: a first camera, a second camera, and an image acquisition card;

[0206] Both the first camera and the second camera include a first camera end connector and a second camera end connector, and the image acquisition card is an image acquisition card in dual-BASE mode as described above;

[0207] The first camera end connector of the first camera is connected to the first board end connector of the image acquisition card, receives the control signal for the first camera output by the image acquisition card, and inputs the image data and receipt signal acquired by the first camera to the image acquisition card.

[0208] The first camera-end connector of the second camera is connected to the second board-end connector of the image acquisition card, receives the control signals for the second camera output by the image acquisition card, and inputs the image data and receipt signals acquired by the second camera to the image acquisition card;

[0209] The second camera end connectors of the first camera and the second camera are suspended.

[0210] like Figure 7-2 As shown in the figure, this application embodiment also provides a data signal transmission example diagram of a first data signal transmission system.

[0211] This application also provides a second data signal transmission system, including: a third camera and an image acquisition card;

[0212] The third camera includes a first camera end connector and a second camera end connector, and the image acquisition card is an image acquisition card in non-BASE mode as described above.

[0213] The first camera-end connector of the third camera is connected to the first board-end connector of the image acquisition card, receives the control signals for the third camera output by the image acquisition card, and inputs the image data and receipt signals acquired by the third camera to the image acquisition card.

[0214] The second camera connector of the third camera is connected to the second board connector of the image acquisition card, receives control signals for the third camera output by the image acquisition card, and inputs image data acquired by the third camera to the image acquisition card.

[0215] like Figure 8 As shown in the figure, this application embodiment also provides a data signal transmission example diagram of a second data signal transmission system.

[0216] like Figure 9 As shown in the figure, this application embodiment also provides a practical application connection example diagram of a data signal transmission system, wherein PCIE X4 is a high-speed data transmission interface of an image acquisition card, and DDR3 SDRAM is a graphics card memory of the image acquisition card.

[0217] The data signal transmission system provided in this application embodiment enables switching between dual-BASE mode and non-BASE mode through the configuration of the main control module of the image acquisition card and the connection between the connection module and the camera, thereby reducing the resource occupation of the connection module.

[0218] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a solid-state drive (SSD), etc.

[0219] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0220] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0221] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An image acquisition card, characterized in that, include: Main control module and multiple board-end connectors; When the image acquisition card is in multi-BASE mode, one end of the board-end connector is connected to the main control module, and the other end of the board-end connector is used to connect to the first camera-end connector of the camera via a cable. The board-end connector is used to transmit the control signals output by the main control module for the camera connected to it to the camera connected to it, and to transmit the image data and receipt signals input by the camera connected to it to the main control module.

2. The image acquisition card according to claim 1, characterized in that, The main control module includes a connection module, which includes a first board end connector and a second board end connector.

3. The image acquisition card according to claim 2, characterized in that, The main control module includes a first connection module and a second connection module. When the image acquisition card is in 4BASE mode: One end of the first board connector of the first connection module is connected to the main control module, and the other end is used to connect to the first camera connector of the first camera via a cable; the first board connector of the first connection module is used to transmit the control signals output by the main control module for the first camera to the first camera, and to transmit the image data and receipt signals input by the first camera to the main control module; One end of the second board connector of the first connection module is connected to the main control module, and the other end is used to connect to the first camera connector of the second camera via a cable; the second board connector of the first connection module is used to transmit the control signals output by the main control module for the second camera to the second camera, and to transmit the image data and receipt signals input by the second camera to the main control module; One end of the first board connector of the second connection module is connected to the main control module, and the other end is used to connect to the first camera connector of the third camera via a cable. The first board-end connector of the second connection module is used to transmit the control signal output by the main control module for the third camera to the third camera, and to transmit the image data and receipt signal input by the third camera to the main control module; one end of the second board-end connector of the second connection module is connected to the main control module, and the other end is used to connect to the first camera-end connector of the fourth camera via a cable. The second board connector of the second connection module is used to transmit the control signal output by the main control module for the fourth camera to the fourth camera, and to transmit the image data and receipt signal input by the fourth camera to the main control module.

4. The image acquisition card according to claim 2, characterized in that, When the image acquisition card is in dual-BASE mode, one end of the first board connector is connected to the main control module, and the other end of the first board connector is used to connect to the first camera connector of the first camera via a cable. The first board connector is used to transmit the control signal for the first camera output by the main control module to the first camera, and to transmit the image data and receipt signal input by the first camera to the main control module. One end of the second board connector is connected to the main control module, and the other end of the second board connector is used to connect to the first camera connector of the second camera via a cable. The second board connector is used to transmit the control signals output by the main control module for the second camera to the second camera, and to transmit the image data and receipt signals input by the second camera to the main control module.

5. The image acquisition card according to claim 3 or 4, characterized in that, Both the second board connector and the first camera connector of the second camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the second board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the second camera via a cable. The first pin of the second board connector is used to transmit the CC signal output by the main control module for the second camera to the second camera, wherein the differential pair of pins connected to the first pin of the second board connector is configured in differential output mode. The second pin of the second board connector is used to transmit the Xlink signal input from the second camera to the main control module; The third pin of the second board connector is used to transmit the SerTC+ / - signal output by the main control module to the second camera, wherein the differential pair of pins connected to the third pin of the second board connector is configured in differential output mode. The fourth pin of the second board connector is used to transmit the SerTFG+ / - signal input from the second camera to the main control module.

6. The image acquisition card according to claim 5, characterized in that, The second board connector and the first camera connector of the second camera both include 26 pins, and each pin has a line number of 1-26; the differential pairs of each pin of the main control module include differential pair 17, differential pair 19, differential pair 20, differential pair 21, and differential pair 22, all of which are configured in differential output mode. The first pins of the second board end connector include pin 18, pin 17, pin 16, pin 15, pin 5, pin 4, pin 3, and pin 2; One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the first camera connector of the second camera, respectively. The other end is connected to the 19N- output of pin differential pair 19, the 20N- output of pin differential pair 20, the 21N- output of pin differential pair 21, and the 22N- output of pin differential pair 22 of the main control module, respectively, for transmitting the CC1-, CC2+, CC3-, and CC4+ signals output by the main control module for the second camera to the second camera. One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the first camera connector of the second camera, respectively, and the other end is connected to the 19P- output of pin differential pair 19, the 20P- output of pin differential pair 20, the 21P- output of pin differential pair 21, and the 22P- output of pin differential pair 22 of the main control module, respectively, for transmitting the CC1+, CC2-, CC3+, and CC4- signals output by the main control module for the first camera to the second camera; The second pins of the second board end connector include pins 25, 24, 23, 22, 21, 12, 11, 10, 9, and 8; Pins 25, 24, 23, 22, and 21 of the second board-side connector are respectively connected to pins 2, 3, 4, 5, and 6 of the first camera-side connector of the second camera, for transmitting the X0-, X1-, X2-, XCK-, and X3- signals input from the second camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board-side connector are respectively connected to pins 15, 16, 17, 18, and 19 of the first camera-side connector of the second camera, for transmitting the X0+, X1+, X2+, XCK+, and X3+ signals input from the second camera to the main control module. The third pin of the second board end connector includes pin 20 and pin 7; one end of pin 20 and pin 7 of the second board end connector is connected to pin 7 and pin 20 of the first camera end connector of the second camera, respectively, and the other end is connected to the 17N-output and 17P-output of the pin differential pair 17 of the main control module, respectively, for transmitting the SerTC+ / - signal output by the main control module for the second camera to the second camera; The fourth pin of the second board-end connector includes pin 19 and pin 6; pin 19 and pin 6 of the second board-end connector are respectively connected to pin 8 and pin 21 of the first camera-end connector of the second camera, and are used to transmit the SerTFG+ / - signal input from the second camera to the main control module.

7. The image acquisition card according to claim 3 or 4, characterized in that, Both the first board connector and the first camera connector of the first camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the first board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the first camera via a cable. The first pin of the first board connector is used to transmit the CC signal output by the main control module for the first camera to the first camera; The second pin of the first board connector is used to transmit the Xlink signal input from the first camera to the main control module; The third pin of the first board connector is used to transmit the SerTC+ / - signal output by the main control module for the first camera to the first camera, and the fourth pin of the first board connector is used to transmit the SerTFG+ / - signal input by the first camera to the main control module.

8. The image acquisition card according to claim 3 or 4, characterized in that, When the image acquisition card is in non-BASE mode, one end of the first board end connector is connected to the main control module, and the other end of the first board end connector is used to connect to the first camera end connector of the third camera via a cable. The first board connector is used to transmit the control signal output by the main control module for the third camera to the third camera, and to transmit the image data and receipt signal input by the third camera to the main control module. One end of the second board connector is connected to the main control module, and the other end of the second board connector is used to connect to the second camera connector of the third camera via a cable. The second board connector is used to transmit the image data input from the third camera to the main control module.

9. The image acquisition card according to claim 8, characterized in that, Both the second board connector and the second camera connector of the third camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the second board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the second camera connector of the third camera via a cable. The first and fourth pins of the second board connector are used to transmit the Z-link signal input from the third camera to the main control module, and the second pin of the second board connector is used to transmit the Y-link signal input from the third camera to the main control module. The differential pair of pins connected to the first pin of the second board connector is configured as a differential input mode.

10. The image acquisition card according to claim 9, characterized in that, The second board connector and the second camera connector of the third camera both include 26 pins, each pin having a line number of 1-26; the main control module includes a matching resistor, and each pin differential pair includes pin differential pair 17, pin differential pair 19, pin differential pair 20, pin differential pair 21, and pin differential pair 22, all configured in differential input mode; The first pins of the second board end connector include pin 18, pin 17, pin 16, pin 15, pin 5, pin 4, pin 3, and pin 2; One end of pins 18, 17, 16, and 15 of the second board connector is connected to pins 9, 10, 11, and 12 of the second camera connector of the third camera, respectively. The other end is connected to the 19N-input of pin differential pair 19, the 20N-input of pin differential pair 20, the 21N-input of pin differential pair 21, and the 22N-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1-signal, Z2-signal, ZCK-signal, and Z3-signal input from the third camera to the main control module. One end of pins 5, 4, 3, and 2 of the second board connector is connected to pins 22, 23, 24, and 25 of the second camera connector of the third camera, respectively. The other end is connected to the 19P-input of pin differential pair 19, the 20P-input of pin differential pair 20, the 21P-input of pin differential pair 21, and the 22P-input of pin differential pair 22 of the main control module, respectively, for transmitting the Z1+, Z2+, ZCK+, and Z3+ signals input from the third camera to the main control module. The second pins of the second board end connector include pins 25, 24, 23, 22, 21, 12, 11, 10, 9, and 8; Pins 25, 24, 23, 22, and 21 of the second board connector are connected to pins 2, 3, 4, 5, and 6 of the second camera connector of the third camera, respectively, for transmitting the Y0-, Y1-, Y2-, YCK-, and Y3- signals input from the third camera to the main control module; pins 12, 11, 10, 9, and 8 of the second board connector are connected to pins 15, 16, 17, 18, and 19 of the second camera connector of the third camera, respectively, for transmitting the Y0+, Y1+, Y2+, YCK+, and Y3+ signals input from the third camera to the main control module. The fourth pin of the second board end connector includes pin 19 and pin 6; pin 19 and pin 6 of the second board end connector are respectively connected to pin 8 and pin 21 of the second camera end connector of the third camera, and are used to transmit the Z0+ and Z0- signals input by the third camera to the main control module.

11. The image acquisition card according to claim 8, characterized in that, Both the first board connector and the first camera connector of the third camera include multiple pins. The main control module includes multiple pairs of differential pins. One end of the pin of the first board connector is connected to the differential pin pair of the main control module, and the other end is used to connect to the first camera connector of the third camera via a cable. The first pin of the first board connector is used to transmit the CC signal output by the main control module for the third camera to the third camera; The second pin of the first board connector is used to transmit the Xlink signal input from the third camera to the main control module.

12. The image acquisition card according to claim 2, characterized in that, The main control module is further configured to configure the pins of the image acquisition card in accordance with the pin-to-signal correspondence method in any one of claims 5-7 when the mode of the image acquisition card is switched to dual-BASE mode or 4-BASE mode, and to configure the pins of the image acquisition card in accordance with the pin-to-signal correspondence method in any one of claims 9-11 when the mode of the image acquisition card is switched to non-BASE mode.

13. A data signal transmission system, characterized in that, include: Multiple cameras and an image acquisition card, wherein the image acquisition card is the image acquisition card as described in any one of claims 1-7.

14. The data signal transmission system according to claim 13, characterized in that, The plurality of cameras includes a first camera, a second camera, a third camera, a fourth camera, and an image acquisition card; The first camera, the second camera, the third camera, and the fourth camera all include a first camera end connector and a second camera end connector, and the image acquisition card is the image acquisition card as described in any one of claims 3, 5-7; The first camera end connector of the first camera is connected to the first board end connector of the first connection module, receives the control signal for the first camera output by the image acquisition card, and inputs the image data and receipt signal acquired by the first camera to the image acquisition card. The first camera-end connector of the second camera is connected to the second board-end connector of the first connection module, receives the control signal for the second camera output by the image acquisition card, and inputs the image data and receipt signal acquired by the second camera to the image acquisition card; The first camera-end connector of the third camera is connected to the first board-end connector of the second connection module, receives the control signal for the third camera output by the image acquisition card, and inputs the image data and receipt signal acquired by the third camera to the image acquisition card. The first camera-end connector of the fourth camera is connected to the second board-end connector of the second connection module, receives the control signal for the fourth camera output by the image acquisition card, and inputs the image data and receipt signal acquired by the fourth camera to the image acquisition card. The second camera end connectors of the first camera, the second camera, the third camera, and the fourth camera are suspended.

Images