CN218830088U

CN218830088U - Data signal transmission cable, system, camera and image receiving equipment

Info

Publication number: CN218830088U
Application number: CN202320033757.5U
Authority: CN
Inventors: 张鸿东; 蒋志斌; 邱宇鑫; 吉杉林; 邓爽
Original assignee: Hangzhou Hikrobot Co Ltd
Current assignee: Hangzhou Hikrobot Co Ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-04-07
Anticipated expiration: 2033-01-06

Abstract

The embodiment of the utility model provides a data signal transmission cable, system, camera and image receiving equipment, concretely relates to machine vision technical field, include: the input end of the first-type serialization chip is connected with a first-type CML connector plug, the output end of the first-type serialization chip is connected with an electric signal end of the first-type photoelectric integrated module, the optical signal end of the first-type serialization chip is connected with an optical signal end of the second-type photoelectric integrated module through an optical fiber, the electric signal end of the first-type serialization chip is connected with the input end of the first-type deserializing chip, and the output end of the first-type deserializing chip is connected with the second-type CML connector plug; the input end of the second-class serialization chip is connected with the second-class CML connector plug, the output end of the second-class serialization chip is connected with the electrical signal end of the third-class photoelectric integrated module, the optical signal end of the second-class serialization chip is connected with the optical signal end of the fourth-class photoelectric integrated module through an optical fiber, the electrical signal end of the second-class deserializer chip is connected with the input end of the second-class deserializer chip, and the output end of the second-class deserializer chip is connected with the first-class CML connector plug. The embodiment of the utility model provides an increased data signal transmission's distance.

Description

Data signal transmission cable, system, camera and image receiving equipment

Technical Field

The utility model relates to a machine vision technical field especially relates to a data signal transmission cable, system, camera and image receiving equipment.

Background

CML is known as Camera Link, and is a serial communication protocol specially used in the field of machine vision applications, and uses LVDS (Low-Voltage Differential Signaling) transmission. The CML protocol is additionally provided with six pairs of differential signal lines on the basis of a ChannelLink (a communication interface) standard, four pairs of differential signal lines are specified to be used for transmitting camera control data signals in parallel, and the other two pairs of differential signal lines are used for serial communication between image sending equipment such as a camera and the like and image receiving equipment such as an acquisition card and the like.

The Camera Link interface transmission commonly used in the prior art is implemented by using protocol chip designs such as DS90CR287, DS90CR288, DS90LV032A, DS90LV031A, and DS90LV019 (models of several chips), as shown in fig. 1, each protocol chip is connected based on MDR _26 (a connector model) through a copper wire cable, and is respectively located in a data signal transmitting device and a data signal receiving device, and both data transmission and data reception are implemented by an FPGA (Field Programmable gate Array), where characters (XO-/+, X3- +, xclk-/+, SERTFG-/+, SERTC-/+ and the like) on an arrow represent signal lines of each signal in the CML protocol, a CMOS (Complementary Metal Oxide Semiconductor ) is a chip, and TTL (Transistor-Logic) is a Transistor-Transistor Logic circuit. However, the effective transmission distance of the signals is only seven meters by adopting the transmission line, and long-distance transmission cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a data signal transmission cable, system, camera and image receiving equipment to realize increasing data signal transmission's distance. The specific technical scheme is as follows:

in a first aspect, an embodiment of the present application provides a data signal transmission cable, including:

the device comprises a video signal transmission line, a control signal transmission line and at least two CML connector plugs, wherein the video signal transmission line comprises a first-class serialization chip, a first-class photoelectric integrated module, a second-class photoelectric integrated module and a first-class deserializing chip; the control signal transmission line comprises a second serial chip, a third photoelectric integrated module, a fourth photoelectric integrated module and a second deserializing chip; the at least two CML connector plugs comprise a first type CML connector plug and a second type CML connector plug;

the input end of the first-class serialization chip is connected with the plug of the first-class CML connector, and the output end of the first-class serialization chip is connected with the electric signal end of the first-class photoelectric integrated module;

the optical signal end of the first type of photoelectric integrated module is connected with the optical signal end of the second type of photoelectric integrated module through an optical fiber;

the electric signal end of the second-type photoelectric integrated module is connected with the input end of the first-type deserializing chip; the output end of the first-type deserializing chip is connected with the plug of the second-type CML connector;

the input end of the second series chip is connected with the plug of the second CML connector, and the output end of the second series chip is connected with the electrical signal end of the third photoelectric integrated module;

the optical signal end of the third type of photoelectric integrated module is connected with the optical signal end of the fourth type of photoelectric integrated module through an optical fiber;

the electric signal end of the fourth type photoelectric integrated module is connected with the input end of the second type deserializing chip; and the output end of the second-type deserializing chip is connected with the plug of the first-type CML connector.

In one possible embodiment, the diameter of the optical fiber is no greater than 4mm.

In a possible implementation manner, the data signal transmission cable includes three video signal transmission lines and one control signal transmission line, wherein the video signal transmission line is a data signal transmission line with a video sending device as a data signal sending device and an image receiving device as a data signal receiving device, and the control signal transmission line is a data signal transmission line with an image receiving device as a data signal sending device and a video sending device as a data signal receiving device.

In one possible implementation, the three video signal transmission lines include a first video signal transmission line, a second video signal transmission line, a third video signal transmission line; the first CML connector plug comprises a first CML connector plug and a third CML connector plug, and the second CML connector plug comprises a second CML connector plug and a fourth CML connector plug;

the first CML connector plug is respectively connected with the input end of the first serial chip of the second video signal transmission line and the input end of the first serial chip of the third video signal transmission line;

the second CML connector plug is respectively connected with the output end of the first deserializing chip of the second video signal transmission line and the output end of the first deserializing chip of the third video signal transmission line;

the third CML connector plug is respectively connected with the input end of the first type of serial chip of the first video signal transmission line and the output end of the second type of deserializing chip of the control signal transmission line;

the fourth CML connector plug is respectively connected with the output end of the first deserializing chip of the first video signal transmission line and the input end of the second deserializing chip of the control signal transmission line;

the first CML connector plug is used for connecting output ports of a second video path and a third video path of the video transmitting equipment; the second CML connector plug is used for connecting the input ports of a second video path and a third video path of the image receiving equipment;

the third CML connector plug is used for connecting an output port of a first video path of the video sending equipment and an input port of a control path; the fourth CML connector plug is for connecting an input port of a first video path and an output port of a control path of the image receiving apparatus.

In one possible embodiment, the optoelectronic integrated module of the first type of the second video signal transmission line and the optoelectronic integrated module of the first type of the third video signal transmission line are integrated on one circuit board; the second type photoelectric integrated module of the second video signal transmission line and the second type photoelectric integrated module of the third video signal transmission line are integrated on a circuit board;

the first CML connector plug, the second video signal transmission line, and the third video signal transmission line are packaged as a first data line.

In a possible embodiment, the fourth type optoelectronic integrated module of the control signal transmission line is integrated on a circuit board with the first type optoelectronic integrated module of the first video signal transmission line; and the third type of photoelectric integrated module of the control signal transmission line and the second type of photoelectric integrated module of the first video signal transmission line are integrated on a circuit board.

In one possible embodiment, the data signal transmission cable further includes:

a serial communication line, one end of which is connected to the third CML connector plug, and the other end of which is connected to the fourth CML connector plug;

the third CML connector plug, the fourth CML connector plug, the first video signal transmission line, the control signal transmission line and the serial communication line are packaged into a second data line;

the third CML connector plug is further configured to connect to a serial communication signal terminal of the video sending device, and the fourth CML connector plug is further configured to connect to a serial communication signal terminal of the image receiving device.

In a second aspect, an embodiment of the present application provides a camera, including:

the device comprises a first FPGA chip, a video data output conversion module and a control data input conversion module;

the video data output conversion module comprises a first serial chip and a first photoelectric integrated module, wherein the input end of the first serial chip is connected with the video channel of the first FPGA chip, and the output end of the first serial chip is connected with the electric signal end of the first photoelectric integrated module;

the control data input conversion module comprises a second-type deserializing chip and a fourth-type photoelectric integrated module; and the electric signal end of the fourth photoelectric integrated module is connected with the input end of the second deserializing chip, and the output end of the second deserializing chip is connected with the control circuit of the first FPGA chip.

In a possible implementation, the camera includes three video data output conversion modules and one control data input conversion module; and the first serial chips of different video data output conversion modules are connected with different video channels of the first FPGA chip.

In a third aspect, an embodiment of the present application provides an image receiving apparatus, including:

the video data input conversion module comprises a first-class deserializing chip and a second-class photoelectric integrated module, wherein the output end of the first-class deserializing chip is connected with a video channel of the FPGA chip, and the input end of the first-class deserializing chip is connected with an electric signal end of the second-class photoelectric integrated module;

the control data output conversion module comprises a second serial chip and a third photoelectric integrated module; and the electric signal end of the third photoelectric integrated module is connected with the output end of the second serial chip, and the input end of the second serial chip is connected with the control circuit of the second FPGA chip.

In a possible implementation manner, the image receiving device includes a three-way video data input conversion module and a one-way control data output conversion module; and the first deserializing chips of different video data input conversion modules are connected with different video channels of the second FPGA chip.

In one possible implementation, the image receiving apparatus further includes:

a second protocol chip and a copper wire interface;

one end of the second protocol chip is connected with the serial communication signal end of the second FPGA chip, and the other end of the second protocol chip is connected with the copper wire interface.

In a fourth aspect, an embodiment of the present application provides a data signal transmission system, including: the camera is any one of the cameras, and the image receiving equipment is any one of the image receiving equipment;

the optical signal end of the first type photoelectric integrated module of the camera is connected with the optical signal end of the second type photoelectric integrated module of the image receiving equipment through an optical fiber, and the optical signal end of the fourth type photoelectric integrated module of the camera is connected with the optical signal end of the third type photoelectric integrated module of the image receiving equipment through an optical fiber.

The embodiment of the utility model provides a data signal transmission cable, utilize serialization chip and deserializing chip to realize serialization and deserializing to data signal, utilize first type serialization chip and first type deserializing chip to realize serialization and deserializing to data signal in the video signal transmission line, utilize first type photoelectricity integrated module and second type photoelectricity integrated module to realize carrying out photoelectric conversion to the single-circuit high speed serial signal that obtains after the data signal serialization, utilize second type serialization chip and second type deserializing chip to realize serialization and deserializing to data signal in the control signal transmission line, utilize third type photoelectricity integrated module and fourth type photoelectricity integrated module to realize carrying out photoelectric conversion to the single-circuit high speed serial signal that obtains after the data signal serialization, convert the electrical signal into optical signal, then realize the transmission to optical signal through optic fibre, recycle first type CML connector plug and second type CML connector plug and realize data signal's input and output, thereby utilize optic fibre to realize the transmission of data signal, the distance of data signal has effectively been increased, the long distance transmission to data signal has promoted the long distance transmission of data signal. Meanwhile, the anti-interference capability of optical fiber transmission is strong, and the cable is light and convenient and is easy to be wired on site, so that the EMC (Electro Magnetic Compatibility) interference capability of data signal transmission and the possibility of realizing on site are improved.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of a data signal transmission system of a CML protocol according to the prior art provided in an embodiment of the present invention;

fig. 2a is a schematic structural diagram of a first data signal transmission cable according to an embodiment of the present invention;

fig. 2b is a schematic structural diagram of a second data signal transmission cable according to an embodiment of the present invention;

fig. 2c is a schematic structural diagram of a third data signal transmission cable according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a fourth data signal transmission cable according to an embodiment of the present invention;

fig. 4 is an exemplary diagram of a configuration of a video transmission mode according to an embodiment of the present invention;

fig. 5a is a schematic structural diagram of a first data line according to an embodiment of the present invention;

fig. 5b is a schematic structural diagram of a data signal transmission line in Medium and Full modes according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a Base mode data signal transmission line according to an embodiment of the present invention;

fig. 7a is a schematic structural diagram of a fifth data signal transmission cable according to an embodiment of the present invention;

fig. 7b is a schematic structural diagram of a second data line according to an embodiment of the present invention;

fig. 8 is a diagram illustrating an example of a data signal definition provided by an embodiment of the present invention;

fig. 9 is an exemplary diagram of a PoCL power supply provided by an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a first camera according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a second camera according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a first image receiving apparatus according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a second image receiving apparatus according to an embodiment of the present invention;

fig. 14 is a diagram illustrating a structure of a data signal transmission system according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art based on the present application all belong to the protection scope of the present disclosure.

The data signal transmission cable provided by the embodiment of the present invention is described in detail below with reference to specific embodiments.

The embodiment of the utility model provides a structural schematic diagram of a data signal transmission cable, as shown in FIG. 2a, include: the device comprises a video signal transmission line, a control signal transmission line and at least two CML connector plugs, wherein the video signal transmission line comprises a first-class serialization chip, a first-class photoelectric integrated module, a second-class photoelectric integrated module and a first-class deserializing chip; the control signal transmission line comprises a second serial chip, a third photoelectric integrated module, a fourth photoelectric integrated module and a second deserializing chip;

the electrical signal end of the second-class photoelectric integrated module is connected with the input end of the first-class deserializing chip; the output end of the first-type deserializing chip is connected with the plug of the second-type CML connector;

the input end of the second series of serialized chips is connected with the plug of the second CML connector, and the output end of the second series of serialized chips is connected with the electrical signal end of the third photoelectric integrated module;

the optical signal end of the third type photoelectric integrated module is connected with the optical signal end of the fourth type photoelectric integrated module through an optical fiber;

The first-class CML connector plug and the second-class CML connector plug are used for connecting data signal sending equipment or data signal receiving equipment.

In the video signal transmission line, the data signal sending device sends video data signals to a first-class serialization chip through a first-class CML connector plug, the first-class serialization chip receives the video data signals through an input end connected with the first-class CML connector plug, serializes the video data signals to obtain single-path high-speed serial signals, and then sends the single-path high-speed serial signals to a first-class photoelectric integrated module through an output end.

The first-class photoelectric integrated module receives the single-path high-speed serial signal through an electric signal end connected with the first-class serial chip, performs photoelectric conversion on the single-path high-speed serial signal to obtain an optical signal, and then sends out the optical signal through an optical signal end; the optical signal is transmitted to the optical signal end of the second type photoelectric integrated module through the optical fiber, so that the second type photoelectric integrated module receives the optical signal through the optical signal end, performs photoelectric conversion on the optical signal to obtain the single-path high-speed serial signal, and then sends the single-path high-speed serial signal to the first type deserializing chip connected with the single-path high-speed serial signal through the electric signal end of the second type photoelectric integrated module.

The first-class deserializing chip receives the single-path high-speed serial signal through the input end connected with the electric signal end of the second-class photoelectric integrated module, deserializes the single-path high-speed serial signal to obtain the video data signal, outputs the video data signal through the output end of the first-class deserializing chip, and sends the video data signal to the data signal receiving equipment through the second-class CML connector plug, so that the transmission of the video data signal is completed.

In the control signal transmission line, the data signal receiving device sends a control data signal to the second-class serialization chip through the second-class CML connector plug, the second-class serialization chip receives the control data signal through the input end connected with the second-class CML connector plug, serializes the control data signal to obtain a single-path high-speed serial signal, and then sends the single-path high-speed serial signal to the third-class photoelectric integrated module through the output end.

The third type photoelectric integrated module receives the single-path high-speed serial signal through an electric signal end connected with the second type serial chip, performs photoelectric conversion on the single-path high-speed serial signal to obtain an optical signal, and then sends out the optical signal through an optical signal end; the optical signal is transmitted to the optical signal end of the fourth type photoelectric integrated module through the optical fiber, so that the fourth type photoelectric integrated module receives the optical signal through the optical signal end, performs photoelectric conversion on the optical signal to obtain the single-path high-speed serial signal, and sends the single-path high-speed serial signal to the second type deserializing chip connected with the fourth type photoelectric integrated module through the electric signal end of the fourth type photoelectric integrated module.

The second-class deserializing chip receives the single-path high-speed serial signal through the input end connected with the electric signal end of the fourth-class photoelectric integrated module, deserializes the single-path high-speed serial signal to obtain the control data signal, outputs the control data signal through the output end of the second-class deserializing chip, and sends the control data signal to the data signal sending device through the first-class CML connector plug, so that the control data signal is transmitted.

In an example, the data signal transmission cable provided by the embodiment of the present invention can be applied to a Camera Link Camera, a Camera Link acquisition card, a Camera Link cable, and any product form adopting a Camera Link interface for transmission.

The first type of CML connector plug and the first type of CML connector plug can be the same type of CML connector plug, and the number of the first type of CML connector plug and the first type of CML connector plug can be set in a self-defining mode according to actual conditions.

In an embodiment of the present invention, the first-type serialization chip and the second-type serialization chip may be LVDS (Low-Voltage Differential Signaling) serialization chips, and the first-type deserializing chip and the second-type deserializing chip may be LVDS deserializing chips.

The video data signals sent by the data signal sending device or the control data signals sent by the data signal receiving device can be both Camera Link signals, specifically low-voltage differential signals, the serialization chip receives the low-voltage differential signals through the input end connected with the CML connector plug, serializes the low-voltage differential signals by utilizing the characteristics of the LVDS serialization chip to obtain single-path high-speed serial signals, and then sends the single-path high-speed serial signals to the photoelectric integrated module through the output end of the serialization chip.

After the deserializing chip receives the single-path high-speed serial signal sent by the photoelectric integrated module through the input end, the single-path high-speed serial signal is deserialized by utilizing the characteristics of the LVDS deserializing chip to restore the low-voltage differential signal, the low-voltage differential signal is output through the output end of the deserializing chip and is sent to the data signal receiving equipment or the data signal sending equipment through another CML connector plug connected with the deserializing chip, and therefore the data signal is transmitted.

The embodiment of the utility model provides a data signal transmission cable, serialize the chip through LVDS and carry out the serialization to data signal, make former data signal serialize the high-speed serial signal of one way that is convenient for direct transmission behind the photoelectric conversion, realized the serialization transmission to former data signal, recycle LVDS deserializes the chip and deserializes the high-speed serial signal of one way after the transmission, restore data signal, thereby accomplish the high-quality transmission to data signal, the integrality of data signal in transmission process has been guaranteed, data signal's transmission quality and transmission ability have been promoted.

It is from top to bottom visible, the utility model provides a data signal transmission cable, utilize serialization chip and deserialize chip to realize serialization and deserializing to data signal, utilize first class serialization chip and first class deserializing chip to realize serialization and deserializing to data signal in the video signal transmission line, utilize first class optoelectronic integration module and second class optoelectronic integration module to realize carrying out photoelectric conversion to the single circuit high speed serial signal that obtains after the data signal serialization, utilize second class serialization chip and second class deserializing chip to realize serializing and deserializing to data signal in control signal transmission line, utilize third class optoelectronic integration module and fourth class optoelectronic integration module to realize carrying out photoelectric conversion to the single circuit high speed serial signal that obtains after the data signal serialization, convert the signal of telecommunication to optical signal, then realize the transmission to optical signal through optic fibre, recycle first class CML connector plug and second class CML connector plug and realize data signal's input and output, thereby utilize optic fibre to realize the transmission ability to data signal, data signal's transmission distance has been increased effectively, long distance data signal's transmission has promoted. Meanwhile, the anti-interference capability of optical fiber transmission is strong, and the cable is light and convenient and is easy to be wired on site, so that the EMC (Electro Magnetic Compatibility) interference capability of data signal transmission and the possibility of realizing on site are improved. In addition, the first photoelectric integrated module and the second photoelectric integrated module are small in size, so that the applicability of the data signal transmission line in a space-limited scene can be improved.

In one embodiment of the present invention, the diameter of the optical fiber is not greater than 4mm.

The embodiment of the utility model provides a data signal transmission cable utilizes the optic fibre that the diameter is not more than 4mm to realize the transmission to data signal, compares in prior art and uses the copper line cable that the diameter is about 15mm at least just can guarantee signal transmission quality, the utility model discloses under the prerequisite of guaranteeing signal transmission quality, utilize the less optic fibre of size to realize the transmission to data signal, for the on-the-spot realization among the practical application provides higher convenience, especially provides higher applicability to the limited application scene in space.

The utility model discloses an embodiment, the data signal transmission cable includes three routes video signal transmission line and control signal transmission line of the same kind, wherein, the video signal transmission line is for using video transmission equipment as data signal transmission equipment, using image receiving equipment as the data signal transmission line of data signal receiving equipment, the control signal transmission line is for using image receiving equipment as data signal transmission equipment, using video transmission equipment as the data signal transmission line of data signal receiving equipment.

In the three paths of video signal transmission lines, the video sending equipment sends data signals to the first type of serial chips through a first type of CML connector plug, and the sent data signals are video data signals; the first-class serialization chip serializes the video data signal to obtain a single-path high-speed serial signal, sends the single-path high-speed serial signal to the first-class photoelectric integrated module, enables the first-class photoelectric integrated module to carry out photoelectric conversion on the single-path high-speed serial signal to obtain an optical signal, and then transmits the optical signal to the second-class photoelectric integrated module through an optical fiber; the second photoelectric integrated module performs photoelectric conversion on the optical signal to obtain a single-path high-speed serial signal, and sends the single-path high-speed serial signal to the first deserializing chip, so that the single-path high-speed serial signal is restored into the video data signal by the first deserializing chip, and the video data signal is sent to the image receiving equipment for receiving through the second CML connector plug.

That is, in the video signal transmission line, the video transmitting device, i.e., the data signal transmitting device, is the output device, and the image receiving device, i.e., the data signal receiving device, is the input device.

In the control signal transmission line, the image receiving device sends a data signal to the second series chip through the second CML connector plug, and the sent data signal is a control data signal; the second serial chip serializes the control data signal to obtain a single-path high-speed serial signal, sends the single-path high-speed serial signal to the third photoelectric integrated module, enables the third photoelectric integrated module to receive the single-path high-speed serial signal through an electric signal end, then carries out photoelectric conversion on the single-path high-speed serial signal to obtain an optical signal, and transmits the optical signal to the fourth photoelectric integrated module through an optical fiber; the fourth type of photoelectric integrated module receives an optical signal through an optical signal end, then performs photoelectric conversion on the optical signal to obtain a single-path high-speed serial signal, and sends the single-path high-speed serial signal to the second type of deserializing chip, so that the second type of deserializing chip restores the single-path high-speed serial signal into the control data signal, and the control data signal is sent to the video sending equipment through the first type of CML connector plug for receiving.

That is, in the control signal transmission line, the image receiving device, i.e., the data signal receiving device, is the output device, and the video transmitting device, i.e., the data signal transmitting device, is the input device.

In one example, the data signal transmission cable is shown in fig. 2 b. In order to facilitate the use of each data signal transmission line, two CML connector plugs may be used in the data signal transmission cable to package the video signal transmission line and the control signal transmission line together.

In yet another example, the data signal transmission cable is shown in fig. 2 c. In order to facilitate the distinction of the data signal transmission lines, eight CML connector plugs can be used in the data signal transmission cable, each data signal transmission line corresponds to two CML connector plugs, and each data signal transmission line can be packaged independently.

In one example, the data signal transmission cable may also be packaged together with the video signal transmission line and the control signal transmission cable separately using four CML connector plugs, as shown in fig. 3.

The embodiment of the utility model provides a data signal transmission cable, include to use video sending equipment data signal sending equipment promptly as output device, use image receiving equipment data signal receiving equipment promptly as input device's video signal transmission line, still include to use image receiving equipment data signal receiving equipment promptly as output device, use video sending equipment data signal sending equipment promptly as input device's control signal transmission line, video signal transmission and the control signal transmission of Camera Link protocol definition have all been realized through optic fibre, video signal and control signal's transmission distance has been increased, video signal and control signal's transmission ability has been promoted.

In an embodiment of the present invention, as shown in fig. 3, a schematic structural diagram of a fourth data signal transmission cable is provided, and the three paths of video signal transmission lines include a first video signal transmission line, a second video signal transmission line, and a third video signal transmission line; the first CML connector plug comprises a first CML connector plug and a third CML connector plug, and the second CML connector plug comprises a second CML connector plug and a fourth CML connector plug;

wherein the first CML connector plug is used for connecting output ports of a second video path and a third video path of the video transmitting equipment.

The output ports of the second video path and the third video path of the video transmitting device are connected to the same CML connector plug, i.e., the first CML connector plug, and the video data signals of the second video path and the third video path are transmitted to the second video signal transmission line and the third video signal transmission line through the first CML connector plug, respectively. And the first serial chips of the second video signal transmission line and the third video signal transmission line receive respective video data signals of the second video path and the third video path through respective input ends connected with the first CML connector plug.

the second CML connector plug is used for connecting the input ports of the second video path and the third video path of the image receiving device.

The input ports of the second video path and the third video path of the image receiving apparatus corresponding to the first CML connector plug are connected to the second CML connector plug which is the same CML connector plug, and the video data signals of the second video path and the third video path transmitted by the second video signal transmission line and the third video signal transmission line are received by the second CML connector plug, respectively. And the first deserializing chips of the second video signal transmission line and the third video signal transmission line send respective video data signals to a second video path and a third video path of the image receiving device through output ends respectively connected with the second CML connector plug.

The third CML connector plug is respectively connected with the input end of the first type of serialization chip of the first video signal transmission line and the output end of the second type of deserialization chip of the control signal transmission line; the third CML connector plug is used to connect an output port of the first video path of the video transmission device and an input port of the control path.

The output port of the first video path of the video transmission device and the input port of the control path are connected to the same CML connector plug, i.e. the video transmission device transmits the video data signal of the first video path to the first video signal transmission line through the third CML connector plug and receives the control data signal transmitted by the control signal transmission line to its control path through the third CML connector plug.

The first type of deserializing chip of the first video signal transmission line receives the video data signal of the first video path through the input end connected with the plug of the third CML connector, and the second type of deserializing chip of the control signal transmission line sends the control data signal of the control path through the output end connected with the plug of the third CML connector.

the fourth CML connector plug is for connecting an input port of a first video path and an output port of a control path of the image receiving apparatus.

The input port of the first video path of the image receiving apparatus and the output port of the control path corresponding to the third CML connector plug are connected to the same CML connector plug, that is, a fourth CML connector plug, that is, the first video path of the image receiving apparatus receives the video data signal of the first video signal transmission line through the fourth CML connector plug and transmits the control data signal of the control path to the control signal transmission line through the fourth CML connector plug.

The first deserializing chip of the first video signal transmission line sends the video data signal of the first video path through the output end connected with the plug of the fourth CML connector, and the second deserializing chip of the control signal transmission line receives the control data signal of the control path through the input end connected with the plug of the fourth CML connector.

In one example, the video sending device converts a 28-bit data signal and 1 clock signal into 5 pairs of low voltage differential signals according to a ratio of 7 to 1 by using a CameraLink chip, and the image receiving device converts the 5 pairs of differential signals into a 28-bit data signal and 1 clock signal by using the CameraLink chip, specifically, the 5 pairs of differential signals are X0-X0 +, X1-X1 +, X2-X2 +, X3-X3 +, and Xclk-Xclk +. The 28-bit data signal includes a 4-bit control signal and a 24-bit video signal. The video signals include three groups of X, Y and Z, each group includes 1 path of clock signal and 4 pairs of video signals, specifically, the X group includes XCLK (1 path of clock signal), X0, X1, X2 and X3 (4 pairs of video signals); the Y group comprises YCLK (1-path clock signal), Y0, Y1, Y2, Y3 (4 to video signal); the Z group includes ZCLK (1-way clock signal), Z0, Z1, Z2, and Z3 (4 pairs of video signals).

The three groups of video signals of X, Y and Z in the video signals are respectively sent to the input ends of the first video signal transmission line, the second video signal transmission line and the third video signal transmission line by the X, Y and Z three-way paths of the video sending equipment, transmitted by the transmission process of the data signal transmission line and then respectively received by the X, Y and Z three-way paths of the image receiving equipment. That is, the X, Y, and Z paths correspond to the first video path, the second video path, and the third video path, respectively.

The 4-bit control signal corresponds to the control path, is sent from the control end of the image receiving device to the input end of the control signal transmission line, and is transmitted through the transmission process of the data signal transmission line until being received by the control end of the video sending device connected with the output end of the control signal transmission line.

The embodiment of the utility model provides a data signal transmission cable, second video signal transmission line and third video signal transmission line connect first CML connector plug and second CML connector plug jointly and are used for input and output, first video signal transmission line and control signal transmission line connect third CML connector plug and fourth CML connector plug jointly and are used for respective input and output, not only make the same video signal transmission line of direction of transmission can multiplex CML connector plug, opposite control signal transmission line of direction of transmission and video signal transmission line also can multiplex CML connector plug and realize respective function, the cost of data signal transmission cable has been reduced, data signal transmission's applicability has been improved.

In an embodiment of the present invention, the first type optoelectronic integrated module of the second video signal transmission line and the first type optoelectronic integrated module of the third video signal transmission line are integrated on a circuit board; the second type photoelectric integrated module of the second video signal transmission line and the second type photoelectric integrated module of the third video signal transmission line are integrated on a circuit board;

the first CML connector plug, the second video signal transmission line, and the third video signal transmission line are packaged as a first data line as shown in fig. 5 a.

In one example, since only 28 bits of data are available in a single Camera Link chip, in practical applications, in order to improve the efficiency of data transmission, several Camera Link chips need to be used simultaneously, and according to different requirements, the video transmission mode can be divided into different configurations as shown in fig. 4, where the four common configurations include: base mode: a Camera Link chip and a Camera Link mechanical interface; medium mode: two Camera Link chips and two Camera Link mechanical interfaces; full mode: three Camera Link chips and two Camera Link mechanical interfaces; 80bit mode: three Camera Link chips and two Camera Link mechanical interfaces.

Aiming at the Medium and Full modes, the first photoelectric integrated module and the second photoelectric integrated module of at least two video signal transmission lines are integrated on one circuit board, or the first photoelectric integrated module and the second photoelectric integrated module are directly multiplexed by at least two video signal transmission lines. In the embodiment of the present invention, as shown in fig. 5b, a schematic structural diagram of a data signal transmission line in Medium and Full modes is provided, wherein a first type of optoelectronic integrated module of a second video signal transmission line and a third video signal transmission line is integrated on a circuit board, and a second type of optoelectronic integrated module is also integrated on a circuit board, that is, a video signal (Y group) of a second video channel and a video signal (Z group) of a third video channel are transmitted through the first type of optoelectronic integrated module integrated on a circuit board and the second type of optoelectronic integrated module integrated on a circuit board.

The embodiment of the utility model provides a data signal transmission cable, the first type photoelectricity integrated module of second video signal transmission line and the first type photoelectricity integrated module of third video signal transmission line are integrated on a circuit board, the second type photoelectricity integrated module of second video signal transmission line and the second type photoelectricity integrated module of third video signal transmission line are integrated on a circuit board, realize under the condition that a plurality of camera Link chips used simultaneously, improve photoelectricity integrated module's utilization ratio, the cost of data signal transmission cable has been reduced, data signal transmission's applicability has been improved, the efficiency of video signal transmission is improved simultaneously.

In an embodiment of the present invention, the fourth type of optoelectronic integrated module of the control signal transmission line and the first type of optoelectronic integrated module of the first video signal transmission line are integrated on a circuit board; and a third type photoelectric integrated module of the control signal transmission line and a second type photoelectric integrated module of the first video signal transmission line are integrated on a circuit board.

For the Base mode, as shown in fig. 6, a schematic structural diagram of a data signal transmission line of the Base mode is provided, a fourth type optoelectronic integrated module of a control signal transmission line and a first type optoelectronic integrated module of a first video transmission line are integrated on one circuit board, a third type optoelectronic integrated module of the control signal transmission line and a second type optoelectronic integrated module of the first video transmission line are integrated on one circuit board, and the first video transmission line correspondingly transmits a video signal of a first video channel (X group).

As can be seen from the above, the transmission direction of the control signal in the control signal transmission line is opposite to the transmission direction of the video signal in the video signal transmission line, so that when the fourth type optoelectronic integrated module of the control signal transmission line and the first type optoelectronic integrated module of the first video transmission line are integrated on one circuit board, the control signal transmission line receives the optical signal sent by the third type optoelectronic integrated module by using the fourth type optoelectronic integrated module integrated on the same circuit board as the first type optoelectronic integrated module of the first video transmission line, and sends the single-channel high-speed serial signal obtained by photoelectrically converting the optical signal to the second type deserializing chip; and a third photoelectric integrated module integrated on the same circuit board with the second photoelectric integrated module in the first video signal transmission line is used for receiving a single-path high-speed serial signal obtained after the second serial chip is serialized, performing photoelectric conversion on the single-path high-speed serial signal to obtain an optical signal, and transmitting the optical signal to the fourth photoelectric integrated module.

That is, the roles that the optoelectronic integration modules integrated on the same circuit board have in the first video signal transmission line and the control signal transmission line are opposite.

The embodiment of the utility model provides a data signal transmission cable, realize that transmission direction is opposite's control signal transmission line and first video transmission line also can be integrated fourth type photoelectricity integrated module and first type photoelectricity integrated module on a circuit board, with third type photoelectricity integrated module and the integration of second type photoelectricity integrated module on same circuit board, utilize the photoelectricity integrated module on the same circuit board to realize different functions, the cost of data signal transmission cable has been reduced, data signal transmission's applicability has been improved.

In an embodiment of the present invention, as shown in fig. 7a, a schematic structural diagram of a fifth data signal transmission cable is provided, which further includes:

the third CML connector plug, the fourth CML connector plug, the first video signal transmission line, the control signal transmission line, and the serial communication line are packaged as a second data line as shown in fig. 7 b;

The serial communication line comprises at least four copper wires for transmitting serial communication signals, and also comprises a power line and a ground line.

The serial communication line is respectively connected with the serial communication signal ends of the video sending equipment and the image receiving equipment through a third CML connector plug and a fourth CML connector plug, so that the serial communication between the video sending equipment and the image receiving equipment is realized. That is, the serial communication line, the first video signal transmission line and the control signal transmission line share the third CML connector plug and the fourth CML connector plug to realize respective connections.

The video sending equipment and the image receiving equipment are provided with two data lines in total, wherein the two data lines are respectively a first data line for packaging a first CML connector plug, a second video signal transmission line and a third video signal transmission line, and a second data line for packaging a third CML connector plug, a fourth CML connector plug, a first video signal transmission line, a control signal transmission line and a serial communication line, the three video signal transmission lines and the control signal transmission line both use optical fiber to transmit signals, and the serial communication line uses copper wire to transmit signals.

In one example, the CML protocol defines 6 pairs of signal transmission lines, wherein 4 pairs are the above data signal transmission lines, the transmitted data signals are defined as CameraControl1 (control signal 1, cc1), cameraControl2 (control signal 2, cc2), cameraControl3 (control signal 3, cc3), cameraControl4 (control signal 4, cc4) as shown in fig. 8, CC1 is defined as EXSYNC (external synchronization signal) falling edge trigger read data, CC2 is defined as PRIN (pixel reset) low active, CC3 is defined as FORWARD — active high, inverted low, and CC4 is an undefined reserved signal; in addition, 2 to do the embodiment of the present invention provides a serial communication line, video sending device and image receiving device corresponding to the line support at least the baud rate of 9600, and the serial communication signal transmitted by the video sending device is defined as SerTFG (signal transmitted from the serial signal end of the video sending device to the serial signal end of the image receiving device) and SerTC (signal transmitted from the serial signal end of the image receiving device to the serial signal end of the video sending device), and its communication format is specifically defined as: 1-bit start bit, 8-bit data bit, 1-bit stop bit, no parity check bit, and handshake bit.

In an example, the data signal transmission Cable according to an embodiment of the present invention supports Power supply of Power Over Camera Link (CML), as shown in fig. 9, power may be supplied through connectors Pin1/26 (Pin 1and 26) and Pin13/14 (Pin 13 and 14) (all of connector models) specified by the CML protocol, where LPF represents a Power supply low pass filter, OCP represents an Over current protection circuit, safePower represents a safepowerprotection protocol, rs represents a Camera input Power for safepowerinput, cs represents a Camera input capacitor of 10k (kilovolt), cs represents a Camera resistor for safepowerapplicable to safepowercamera, 12V (volt) represents a Power supply voltage, GND represents a Camera, and the Camera represents a Camera capture unit represents a Camera.

The embodiment of the utility model provides a data signal transmission cable, except above-mentioned video signal transmission line and control signal transmission line, still include serial communication line to this realizes the asynchronous serial communication between video sending equipment and the image receiving equipment. The serial communication line, the third CML connector plug, the fourth CML connector plug, the first video signal transmission line and the control signal transmission line are jointly packaged in the second data line, and the serial communication line can realize the transmission of the serial communication signal through the copper wire.

In an embodiment of the present invention, as shown in fig. 10, a schematic structural diagram of a first camera is provided, including:

the video data output conversion module comprises a first serial chip and a first photoelectric integrated module, wherein the input end of the first serial chip is connected with one video channel of the first FPGA chip, and the output end of the first serial chip is connected with the electric signal end of the first photoelectric integrated module;

the control data input conversion module comprises a second-type deserializing chip and a fourth-type photoelectric integrated module; and the electric signal end of the fourth type photoelectric integrated module is connected with the input end of the second type deserializing chip, and the output end of the second type deserializing chip is connected with the control circuit of the first FPGA chip.

In an embodiment of the present invention, the camera includes three video data output conversion modules and one control data input conversion module; and the first serial chips of different video data output conversion modules are connected with different video channels of the first FPGA chip.

The camera is used as video sending equipment for outputting video signals, wherein the first FPGA chip comprises three video channels, a first serial chip in a video data output conversion module corresponding to each channel is used for receiving the video signals of each channel through an input end, serializing the video signals to obtain a single-channel high-speed serial signal, then sending the single-channel high-speed serial signal to the first photoelectric integrated module through an output end, the first photoelectric integrated module receives the single-channel high-speed serial signal through an electric signal end connected with the first photoelectric integrated module for photoelectric conversion to obtain optical signals, then sending the optical signals through an optical fiber interface included by the optical signal end, and transmitting the video signals through an optical fiber connected with the first photoelectric integrated module.

Meanwhile, the camera is also used for receiving control signals, wherein a fourth type photoelectric integrated module in the control data input conversion module is used for receiving optical signals transmitted through optical fibers, performing photoelectric conversion on the optical signals to obtain single-path high-speed serial signals, and then sending the single-path high-speed serial signals to a second type deserializing chip through an electric signal end, so that the second type deserializing chip receives the single-path high-speed serial signals through an input end connected with the second type deserializing chip, deserializes the single-path high-speed serial signals to obtain control signals, and then sends the control signals to a control channel of the first FPGA chip through an output end of the second type deserializing chip, and the control signals are received.

The embodiment of the utility model provides a camera, utilize first type serialization chip and second type to deserialize the chip and realize the serialization of video signal and deserialize control signal, utilize first type optoelectronic integration module and fourth type optoelectronic integration module to realize carrying out photoelectric conversion to the high-speed serial signal of one way that obtains after the data signal serialization, then realize the transmission to the light signal through optic fibre, the output of camera to video signal and the input to control signal have been realized, and utilize optic fibre to realize the long distance transmission to the data signal, data signal's transmission distance has been increased effectively, the transmission ability to the data signal has been promoted. Meanwhile, the anti-interference capability of optical fiber transmission is strong, and the cable is light and convenient and is easy to be wired on site, so that the EMC (Electro Magnetic Compatibility) interference capability of data signal transmission and the possibility of realizing on site are improved. In addition, the first photoelectric integrated module, the fourth photoelectric integrated module, the first serialization chip and the second deserialization chip are small in size, so that the realizability of the camera can be improved.

In an embodiment of the present invention, as shown in fig. 11, a schematic structural diagram of a second camera is provided, the camera further includes:

a first protocol chip and a copper wire interface;

one end of the first protocol chip is connected with the serial communication signal end of the first FPGA chip, and the other end of the first protocol chip is connected with the copper wire interface.

The serial communication signal end of the first FPGA chip is used for outputting/inputting serial communication signals, and the first protocol chip is used for realizing the transmission of the serial communication signals through the connection with the copper wire interface.

In one example, the first protocol chip is a DS90LV019 protocol chip.

The embodiment of the utility model provides a camera utilizes the copper line interface realization that first agreement chip and be connected with it to serial communication signal's transmission to serial communication between camera and other equipment has been realized.

In an embodiment of the present invention, as shown in fig. 12, a schematic structural diagram of a first image receiving apparatus is provided, including:

the second FPGA chip, the video data input conversion module and the control data output conversion module;

the video data input conversion module comprises a first-class deserializing chip and a second-class photoelectric integrated module, wherein the output end of the first-class deserializing chip is connected with one video channel of the FPGA chip, and the input end of the first-class deserializing chip is connected with the electric signal end of the second-class photoelectric integrated module;

In an embodiment of the present invention, the image receiving device includes three video data input conversion modules and one control data output conversion module; and the first deserializing chips of different video data input conversion modules are connected with different video channels of the second FPGA chip.

The image receiving equipment is used for inputting video signals, the second FPGA chip comprises three video channels, the second type photoelectric integrated module in the video data input conversion module corresponding to each channel is used for receiving optical signals through an optical signal end comprising an optical fiber interface, then the received optical signals are subjected to photoelectric conversion to obtain single-channel high-speed serial signals, and the single-channel high-speed serial signals are sent to the first type deserializing chip through the electric signal end. The first deserializing chip is used for receiving the single-path high-speed serial signals of the respective paths through the input end, deserializing the single-path high-speed serial signals to obtain video signals, and sending the video signals to the respective video paths in the second FPGA chip through the output end to realize the input of the video signals corresponding to the respective video paths.

Meanwhile, the image receiving device is also used for sending a control signal, wherein a second serial chip in the control data input conversion module is used for receiving the control signal sent by the control channel of the second FPGA chip through an input end, serializing the control signal to obtain a single-path high-speed serial signal, and sending the single-path high-speed serial signal to a third photoelectric integrated module; after the third type of photoelectric integrated module receives the signal through the electrical signal end, the single-path high-speed serial signal is subjected to photoelectric conversion to obtain an optical signal, and then the optical signal is sent out through an optical fiber interface included by the optical signal end, so that the output of a control signal is realized.

In one example, the image receiving device is an acquisition card.

The embodiment of the utility model provides an image receiving equipment, utilize second type serialization chip and first type to deserialize the chip and realize the deserializing of video signal and the serialization to control signal, utilize second type photoelectricity integrated module and third type photoelectricity integrated module to realize carrying out photoelectric conversion to the high-speed serial signal of one way that obtains after the data signal serialization, then realize the transmission to the light signal through optic fibre, realized the input to the video signal and the output to control signal, and utilize optic fibre to realize the long distance transmission to the data signal, the transmission distance of data signal has been increased effectively, the transmission ability to the data signal has been promoted. Meanwhile, the anti-interference capability of optical fiber transmission is strong, and the cable is light and convenient and is easy to be wired on site, so that the EMC (Electro Magnetic Compatibility) interference capability of data signal transmission and the possibility of realizing on site are improved. In addition, the second-type photoelectric integrated module, the third-type photoelectric integrated module, the second-type serialization chip and the first-type deserializing chip are small in size, so that the realizability of the image receiving device can be improved.

In an embodiment of the present invention, as shown in fig. 13, a schematic structural diagram of a second image receiving apparatus is provided, where the image receiving apparatus further includes:

a second protocol chip and a copper wire interface;

And the serial communication signal end of the second FPGA chip is used for outputting/inputting serial communication signals, and the second protocol chip is used for realizing the transmission of the serial communication signals through the connection with the copper wire interface.

In one example, the second protocol chip is a DS90LV019 protocol chip.

The embodiment of the utility model provides an image receiving equipment utilizes second agreement chip and the copper line interface who is connected with it to realize the transmission to serial communication signal to image receiving equipment and other serial communication between the equipment have been realized.

In an embodiment of the present invention, as shown in fig. 14, there is further provided a schematic structural diagram of a data signal transmission system, including: the camera is any one of the cameras, and the image receiving equipment is any one of the image receiving equipment; the arrows connected to the chip, i.e. the letters thereon, represent the transmitted signals.

The embodiment of the utility model provides a data signal transmission system utilizes first type optoelectronic integration module and fourth type optoelectronic integration module to realize carrying out photoelectric conversion to the high-speed serial signal of one way that obtains after the data signal serialization, then realizes the transmission to the optical signal through optic fibre, has realized the output of camera to video signal and to control signal's input; the second type photoelectric integrated module and the third type photoelectric integrated module are used for realizing photoelectric conversion on a single-path high-speed serial signal obtained after the data signal is serialized, and then the optical signal is transmitted through an optical fiber, so that the input of a video signal and the output of a control signal are realized; and long-distance transmission of data signals is realized by using the optical fibers, the transmission distance of the data signals is effectively increased, and the transmission capability of the data signals is improved. Meanwhile, the anti-interference capability of optical fiber transmission is strong, and cables are light and easy to wire in the field, so that the EMC (Electro Magnetic Compatibility) interference capability of data signal transmission and the possibility of field implementation are improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A data signal transmission cable, comprising:

the electric signal end of the fourth type photoelectric integrated module is connected with the input end of the second type deserializing chip; and the output end of the second-class deserializing chip is connected with the plug of the first-class CML connector.

2. The data signal transmission cable of claim 1, wherein the optical fiber has a diameter of no greater than 4mm.

3. The data signal transmission cable according to claim 1, wherein the data signal transmission cable includes three video signal transmission lines and one control signal transmission line, wherein the video signal transmission line is a data signal transmission line having a video transmitting device as a data signal transmitting device and an image receiving device as a data signal receiving device, and the control signal transmission line is a data signal transmission line having an image receiving device as a data signal transmitting device and a video transmitting device as a data signal receiving device.

4. The data signal transmission cable of claim 3, wherein the three-way video signal transmission line includes a first video signal transmission line, a second video signal transmission line, a third video signal transmission line; the first CML connector plug comprises a first CML connector plug and a third CML connector plug, and the second CML connector plug comprises a second CML connector plug and a fourth CML connector plug;

the third CML connector plug is used for connecting an output port of a first video path of the video transmitting equipment and an input port of a control path; the fourth CML connector plug is for connecting an input port of a first video path and an output port of a control path of the image receiving apparatus.

5. The data signal transmission cable according to claim 4, wherein the first type optoelectronic integrated module of the second video signal transmission line and the first type optoelectronic integrated module of the third video signal transmission line are integrated on one circuit board; the second type photoelectric integrated module of the second video signal transmission line and the second type photoelectric integrated module of the third video signal transmission line are integrated on a circuit board;

6. The data signal transmission cable according to claim 4, wherein the fourth type optoelectronic integrated module of the control signal transmission line and the first type optoelectronic integrated module of the first video signal transmission line are integrated on one circuit board; and the third type of photoelectric integrated module of the control signal transmission line and the second type of photoelectric integrated module of the first video signal transmission line are integrated on a circuit board.

7. The data signal transmission cable of claim 6, further comprising:

a serial communication line having one end connected to the third CML connector plug and the other end connected to the fourth CML connector plug;

8. A camera, comprising:

9. The camera of claim 8, wherein the camera comprises a three-way video data output conversion module and a one-way control data input conversion module; and the first serial chips of different video data output conversion modules are connected with different video channels of the first FPGA chip.

10. The camera of claim 9, further comprising:

a first protocol chip and a copper wire interface;

11. An image receiving apparatus characterized by comprising:

12. The image receiving apparatus according to claim 11, wherein said image receiving apparatus comprises a three-way video data input conversion module and a one-way control data output conversion module; and the first deserializing chips of different video data input conversion modules are connected with different video channels of the second FPGA chip.

13. The image receiving apparatus according to claim 11, characterized in that the image receiving apparatus further comprises:

a second protocol chip and a copper wire interface;

14. A data signal transmission system, comprising: a camera, an image receiving device, wherein the camera is the camera of any one of claims 8 to 10, and the image receiving device is the image receiving device of any one of claims 11 to 13;