阅读说明：本技术 图像数据的传输设备及方法、非易失性存储介质 (Image data transmission device and method, and nonvolatile storage medium ) 是由 段敏杰 韦桂锋 于 2021-09-22 设计创作，主要内容包括：本申请公开了一种图像数据的传输设备及方法、非易失性存储介质。其中,该设备包括：发送卡,用于输出图像数据；转换器,与发送卡连接,用于将图像数据转换为目标信号,其中,目标信号包括低压差分信号或VByOne信号；接收卡,与转换器连接,用于接收目标信号,并控制目标信号进行显示。本申请解决了现有技术中,LED接收(扫描)设备之间采用千兆以太网传输数据存在带载分辨率低,以及采用5G网络传输数据存在功耗和成本较高的技术问题。(The application discloses an image data transmission device and method, and a nonvolatile storage medium. Wherein, this equipment includes: a transmitting card for outputting image data; the converter is connected with the sending card and used for converting the image data into a target signal, wherein the target signal comprises a low-voltage differential signal or a VByOne signal; and the receiving card is connected with the converter and used for receiving the target signal and controlling the target signal to be displayed. The method and the device solve the technical problems that in the prior art, the load resolution ratio is low when the gigabit Ethernet is adopted for transmitting data between the LED receiving (scanning) devices, and the power consumption and the cost are high when the 5G network is adopted for transmitting the data.)

1. An apparatus for transmitting image data, comprising:

a transmitting card for outputting image data;

the converter is connected with the sending card and used for converting the image data into a target signal, wherein the target signal comprises a low-voltage differential signal or a VByOne signal;

and the receiving card is connected with the converter and used for receiving the target signal and controlling the target signal to be displayed.

2. The transmission apparatus according to claim 1, wherein the converter comprises: an encoding chip, wherein,

the converter is used for converting the image data into the low-voltage differential signals;

the encoding chip is configured to encode the low-voltage differential signal into the VByOne signal when the target signal is the VByOne signal.

3. Transmission apparatus according to claim 1 or 2, wherein the receiving card is provided on a patch panel comprising: a decoding chip, wherein,

the decoding chip is configured to decode the VByOne signal into the low-voltage differential signal and send the low-voltage differential signal obtained by decoding to the receiving card when the target signal is the VByOne signal.

4. The transmission apparatus according to claim 3, wherein the converter is configured to transmit the low voltage differential signal to the receiving card when the target signal is the low voltage differential signal; or the signal intensity of the low-voltage differential signal is enhanced and then sent to the receiving card, wherein the signal intensity of the low-voltage differential signal is enhanced through a low-voltage differential signal enhancing chip arranged on the adapter plate.

5. The transmission apparatus according to claim 3, wherein the number of the patch panels is plural, one receiving card is disposed on each patch panel, and plural patch panels are cascaded with each other.

6. Transmission device according to claim 3,

if the target signal is the VByOne signal, a plurality of adapter plates and the converter are communicated through a low-voltage differential signal link or a VByOne signal link;

and if the target signal is the low-voltage differential signal, communicating among a plurality of adapter plates and between the adapter plates and the converter through low-voltage differential signal links.

7. The transmission apparatus of claim 1, wherein the transmitter card and the converter comprise a data transmission interface for transmitting the image data over a distance, wherein the data transmission interface comprises at least one of: the optical fiber interface, the 5G network port and the high-definition digital display interface.

8. A method for transmitting image data, which is applied to the image data transmission apparatus according to any one of claims 1 to 7, comprising the steps of:

acquiring image data;

converting the image data into low voltage differential signals;

encoding the low-voltage differential signal into a VByOne signal;

and decoding the VByOne signal into the low-voltage differential signal, and sending the decoded low-voltage differential signal to a receiving card.

9. A method for transmitting image data, which is applied to the image data transmission apparatus according to any one of claims 1 to 7, comprising the steps of:

acquiring image data;

converting the image data into low voltage differential signals;

and sending the low-voltage differential signal to a receiving card.

10. A non-volatile storage medium, characterized in that the non-volatile storage medium includes a stored program, wherein a device in which the non-volatile storage medium is located is controlled to execute the image data transmission method according to any one of claims 8 or 9 when the program runs.

Technical Field

The present disclosure relates to the field of LED display control, and in particular, to an apparatus and a method for transmitting image data, and a non-volatile storage medium.

Background

Fig. 1 is a topological structure diagram of a conventional LED display control system, and as shown in fig. 1, the topological structure of the conventional LED display control system includes: LED transmitting device, LED receiving (scanning) device 1, LED receiving (scanning) device 2 … …, LED receiving (scanning) device N.

In the prior art, gigabit ethernet is adopted between LED receiving (scanning) devices to transmit data, but the transmission rate of ethernet has a bottleneck, the gigabit ethernet bandwidth is 1Gbps, the video image calculation with RGB8 bits bit depth is performed at the transmission speed of 60Fps field per second, and only 65w pixels can be transmitted under a single network line. The on-load resolution under a single net wire is limited and cannot be used to carry a large area with many LED receiving (scanning) devices on a single wire.

The LED receiving (scanning) equipment adopts a 5G network to transmit data, and the problems of the number of loaded pixels and the resolution under a single network cable can be solved; the disadvantage is that power consumption and cost present major challenges.

Aiming at the problems that the data transmission between LED receiving (scanning) devices by adopting a gigabit Ethernet has low on-load resolution and the data transmission by adopting a 5G network has higher cost, an effective solution is not provided at present.

Disclosure of Invention

The embodiment of the application provides image data transmission equipment and method and a nonvolatile storage medium, and aims to at least solve the technical problems that in the prior art, gigabit Ethernet is adopted between LED receiving (scanning) equipment to transmit data, the loading resolution is low, and a 5G network is adopted to transmit data, so that the power consumption and the cost are high.

According to an aspect of an embodiment of the present application, there is provided an image data transmission apparatus including: a transmitting card for outputting image data; the converter is connected with the sending card and used for converting the image data into a target signal, wherein the target signal comprises a low-voltage differential signal or a VByOne signal; and the receiving card is connected with the converter and used for receiving the target signal and controlling the target signal to be displayed.

Optionally, the converter comprises: the encoding chip is used for converting the image data into low-voltage differential signals; and the coding chip is used for coding the low-voltage differential signal into a VByOne signal when the target signal is the VByOne signal.

Optionally, the receiving card is disposed on the adapter plate, and the adapter plate includes: and the decoding chip is used for decoding the VByOne signal into a low-voltage differential signal when the target signal is the VByOne signal, and sending the low-voltage differential signal obtained by decoding to the receiving card.

Optionally, the converter is configured to send the low-voltage differential signal to the receiving card when the target signal is the low-voltage differential signal; or the signal intensity of the low-voltage differential signal is enhanced and then sent to the receiving card, wherein the signal intensity of the low-voltage differential signal is enhanced through a low-voltage differential signal enhancing chip arranged on the adapter plate.

Optionally, the number of the adapter plates is multiple, each adapter plate is provided with one receiving card, and the multiple adapter plates are cascaded.

Optionally, if the target signal is a VByOne signal, communication is performed between the plurality of adapter boards and between the adapter board and the converter through low-voltage differential signal links or VByOne signal links; if the target signal is a low voltage differential signal, communication between the plurality of patch panels and between the patch panels and the converter is via low voltage differential signal links.

Optionally, the sending card and the converter comprise a data transmission interface for transmitting image data over a long distance, wherein the data transmission interface comprises at least one of: the optical fiber interface, the 5G network port and the high-definition digital display interface.

According to another aspect of the embodiments of the present application, there is also provided an image data transmission method applied to the above image data transmission apparatus, including: acquiring image data; converting the image data into low-voltage differential signals; encoding the low-voltage differential signal into a VByOne signal; and decoding the VByOne signal into a low-voltage differential signal, and sending the decoded low-voltage differential signal to a receiving card.

According to another aspect of the embodiments of the present application, there is provided another image data transmission method applied to the above image data transmission apparatus, including: acquiring image data; converting the image data into low-voltage differential signals; and sending the low-voltage differential signal to a receiving card.

According to still another aspect of the embodiments of the present application, there is provided a nonvolatile storage medium, wherein the nonvolatile storage medium includes a stored program, and wherein the apparatus in which the nonvolatile storage medium is located is controlled to execute the above image data transmission method when the program is executed.

According to still another aspect of the embodiments of the present application, there is also provided a processor for executing a program stored in a memory, wherein the program executes the above image data transmission method.

In an embodiment of the present application, there is provided an image data transmission apparatus including: a transmitting card for outputting image data; the converter is connected with the sending card and used for converting the image data into a target signal, wherein the target signal comprises a low-voltage differential signal or a VByOne signal; the receiving card is connected with the converter and used for receiving the target signal and controlling the target signal to display, and data are transmitted between the LED receiving (scanning) devices by adopting a low-voltage differential signal or a VByOne signal, so that the technical effects of improving the data transmission rate between the LED receiving (scanning) devices and reducing the power consumption and the cost of the devices are achieved, and the technical problems that in the prior art, the load resolution is low when the LED receiving (scanning) devices adopt gigabit Ethernet to transmit data, the power consumption and the cost are high when the LED receiving (scanning) devices adopt a 5G network to transmit data are solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a prior art topological structure diagram of an LED display control system;

FIG. 2a is a schematic diagram of a scenario in which gigabit Ethernet is used to transmit data between receiving cards;

FIG. 2b is a schematic diagram of a gigabit network with an intermediate level of optical fiber between the transmitting card and the receiving card;

fig. 3 is a block diagram of a configuration of an image data transmission apparatus according to an embodiment of the present application;

fig. 4a is a hardware topology diagram of a transmission apparatus of image data according to an embodiment of the present application;

FIG. 4b is a hardware topology diagram of another image data transmission device according to an embodiment of the present application;

FIG. 5 is a flow chart of a method of transmitting image data according to an embodiment of the present application;

fig. 6 is a flowchart of another image data transmission method according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

First, some terms or terms appearing in the description of the embodiments of the present application are applicable to the following explanations:

LVDS (low voltage differential signaling) is a differential signaling technology with low power consumption, low error rate, low crosstalk and low radiation, the transmission technology can reach more than 155Mbps, the core of the LVDS technology is to adopt an extremely low voltage swing high-speed differential transmission data, point-to-point or point-to-multipoint connection can be realized, and a transmission medium can be a copper PCB (printed Circuit Board) connecting line or a balanced cable.

VByOne: the digital interface standard is specially developed for image transmission, and the input and output levels of signals adopt LVDS.

In the prior art, the most widely used hardware transmission link between the receiving card and the receiving card is a gigabit ethernet transmission mode, and besides, a 5G network transmission mode exists. There is also a fiber optic transmission, type c transmission scheme between the sending card and the receiving card.

FIG. 2a is a schematic diagram of a scenario in which gigabit Ethernet is used to transmit data between receiving cards; fig. 2b is a schematic diagram of a gigabit network with intermediate optical fibers between the sending card and the receiving card, as shown in fig. 2a and 2b,

in the above prior embodiment example, the following elements appear:

sending the card: the transmitting card has the functions of optical port and network port output, and the network port is usually 1Gbps bandwidth (often called 1G bandwidth) and also has network port equipment with 5G bandwidth;

the network port is a conventional RJ45 network port;

network cable: the 1G network port is provided with a network cable above the CAT5 standard; however, in the 5G bandwidth transmission, a requirement is imposed on the network cable, which is required to be above CAT5-E, and the maximum distance of the network cable transmission is usually about one hundred meters, so that the long-distance transmission application of the optical fiber relay shown in fig. 2b exists.

An adapter plate: the adapter plate is usually designed and manufactured by an LED display screen factory, and is designed to adapt to the size and appearance specification of the LED display box, the form is not limited to the above example, but the adapter plate has the following elements:

a. a network port: the connector receives a network port physical signal from a transmitting card or photoelectric conversion equipment; typically an RJ45 interface.

b. Lamp panel interface: typically a connector to a customer light panel.

Receiving a card: specific important items include:

a. a network transformer: the signal is received to send the card, passes through the network cable, the network port of the adapter plate and then reaches the position, only the driving capability is changed at the position, and no protocol is changed. The method is used for isolating overshoot or lightning stroke signals generated on the network cable and ensuring that the double-ended device is not damaged.

And b, PHY: and the network chip analyzes the serial differential signal into a TTL signal, converts the protocol into RGMII standard or other standards and represents that signal format conversion exists.

And c, FPGA: and the field programmable gate array is used for receiving the PHY signal, processing and forwarding video data, and realizing image control and display of the LED display screen by matching with the DDR.

In view of the deficiencies of the prior art, the present application provides an image data transmission device, and fig. 3 is a block diagram of a structure of an image data transmission device according to an embodiment of the present application, and as shown in fig. 3, the image data transmission device includes:

a transmitting card 30 for outputting image data;

a converter 32 connected to the transmitting card 30 for converting the image data into a target signal, wherein the target signal includes a low voltage differential signal or a VByOne signal;

and the receiving card 34 is connected with the converter 32 and used for receiving the target signal and controlling the target signal to be displayed.

It should be noted that the receiving card 34 is an LED receiving (scanning) device mentioned in the background.

Data are transmitted by adopting low-voltage differential signals or VByOne signals between the LED receiving (scanning) devices, so that the technical effects of improving the data transmission rate between the LED receiving (scanning) devices and reducing the power consumption and the cost of the devices are achieved.

According to an alternative embodiment of the present application, the converter 32 comprises: a coding chip, wherein the converter 32 is used for converting the image data into a low-voltage differential signal; and the coding chip is used for coding the low-voltage differential signal into a VByOne signal when the target signal is the VByOne signal.

Fig. 4a is a hardware topology diagram of an image data transmission device according to an embodiment of the present application, and as shown in fig. 4a, since a VByOne signal transmission distance is limited, an auxiliary device is required for long-distance transmission, and at this time, an output interface of a transmitting card for long-distance transmission may be 5G network port/hdbt (hdbaset)/fiber/coaxial cable, and the like.

The signal is transmitted to the remote recovery device, the device has the function of recovering high speed, the signal transmitted remotely is LVDS, and the signal is converted into a VBO signal through the VBO coding chip.

According to another alternative embodiment of the present application, the receiving card 34 is provided on an adapter board, the adapter board comprising: and the decoding chip is configured to decode the VByOne signal into a low-voltage differential signal when the target signal is the VByOne signal, and send the low-voltage differential signal obtained by decoding to the receiving card 34.

It should be noted that the VBO encoding chip and the VBO decoding chip implement the conversion of signals from LVDS to VBO, and usually 2 chips are two independent chips, or may be a sealed chip.

In addition, the VBO codec chip may exist on the adapter board or on the receiving card.

The embodiment shown in fig. 4a can achieve the following technical effects:

1) the wiring harness is less, the wire cost of a user is saved, the signal format is standardized, and the signal format is unified with the display of a large-space flat-panel television;

2) the VByOne signal can transmit data volume with the rate as high as 3.2Gb, so that various problems caused by the bandwidth of a 1G network port are solved;

3) the power consumption problem is optimized with respect to 5G.

In some alternative embodiments of the present application, the converter 32 is configured to transmit the low voltage differential signal to the receiving card 34 when the target signal is the low voltage differential signal; or the signal intensity of the low-voltage differential signal is enhanced and then sent to the receiving card 34, wherein the signal intensity of the low-voltage differential signal is enhanced through a low-voltage differential signal enhancing chip arranged on the adapter plate.

Fig. 4b is a hardware topology diagram of another image data transmission device according to an embodiment of the present application, and as shown in fig. 4b, compared with the implementation example shown in fig. 4a, only the VBO codec chip needs to be directly changed into an LVDS enhancement chip, or an application mode and an application form that do not need to be enhanced and directly perform short-distance transmission are adopted.

The method is characterized in that:

1. the converter 32 outputs a signal of LVDS standard;

2. the output interface is related to LVDS (signal lines exist in pairs);

3. there is no gigabit net chip on the adapter board, only LVDS signal enhanced chip or no enhanced chip (signal directly reaches FPGA).

The embodiment shown in fig. 4a can achieve the technical effects of more stable image data transmission and higher image data transmission rate.

In other alternative embodiments of the present application, the number of the patch panels is multiple, each patch panel is provided with one receiving card, and multiple patch panels are cascaded.

Referring to fig. 4a and 4b, the image data transmission device according to the embodiment of the present application includes a plurality of cascaded patch panels, and each patch panel is provided with a receiving card.

According to an alternative embodiment of the present application, if the target signal is a VByOne signal, communication between the plurality of patch panels and between the patch panel and the converter is via low voltage differential signal links or VByOne signal links; if the target signal is a low voltage differential signal, communication between the plurality of patch panels and between the patch panels and the converter is via low voltage differential signal links.

Referring to fig. 4a, if data are transmitted between multiple receiving cards through VByOne signals, the VBO interface may be a wire in an LVDS form, or a VBO standard wire, and the interface form may exist in a customized manner.

Referring to fig. 4b, if data are transmitted between multiple receiving cards through LVDS signals, the LVDS interface may be a wire in an LVDS form.

According to another alternative embodiment of the present application, the transmitting card 30 and the converter 32 comprise a data transmission interface for transmitting image data over a long distance, wherein the data transmission interface comprises at least one of: the optical fiber interface, the 5G network port and the high-definition digital display interface.

Referring to fig. 4a and 4b, the data transmission interfaces of the transmitting card 30 and the converter 32 each include an optical fiber interface, a 5G network interface, and an HDBT high definition digital display interface.

According to an embodiment of the present application, there is provided an embodiment of a method for transmitting image data, it should be noted that the steps shown in the flowchart of the figure may be executed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that here.

Fig. 5 is a flowchart of a transmission method of image data according to an embodiment of the present application, which is applied to the above transmission apparatus of image data, including the steps of:

step S502, acquiring image data;

step S504, converting the image data into low-voltage differential signals;

step S506, encoding the low-voltage differential signal into a VByOne signal;

step S508, the VByOne signal is decoded into a low-voltage differential signal, and the decoded low-voltage differential signal is sent to the receiving card.

It should be noted that, reference may be made to the description related to the embodiment shown in fig. 4a for a preferred implementation of the embodiment shown in fig. 5, and details are not repeated here.

Fig. 6 is a flowchart of another image data transmission method according to an embodiment of the present application, which is applied to the above image data transmission apparatus, and includes the steps of:

step S602, acquiring image data;

step S604, converting the image data into a low voltage differential signal;

step S606, the low voltage differential signal is sent to the receiving card.

It should be noted that, reference may be made to the description related to the embodiment shown in fig. 4b for a preferred implementation of the embodiment shown in fig. 6, and details are not described here again.

According to still another aspect of the embodiments of the present application, there is provided a nonvolatile storage medium, wherein the nonvolatile storage medium includes a stored program, and wherein the apparatus in which the nonvolatile storage medium is located is controlled to execute the above image data transmission method when the program is executed.

The nonvolatile storage medium stores a program for executing the following functions: acquiring image data; converting the image data into low-voltage differential signals; encoding the low-voltage differential signal into a VByOne signal; and decoding the VByOne signal into a low-voltage differential signal, and sending the decoded low-voltage differential signal to a video receiving card. Or

Acquiring image data; converting the image data into low-voltage differential signals; and sending the low-voltage differential signal to a video receiving card.

The embodiment of the application also provides a processor, wherein the processor is used for operating the program stored in the memory, and the program executes the transmission method of the image data when running.

The processor is configured to run a program that performs the following functions: acquiring image data; converting the image data into low-voltage differential signals; encoding the low-voltage differential signal into a VByOne signal; and decoding the VByOne signal into a low-voltage differential signal, and sending the decoded low-voltage differential signal to a video receiving card. Or

Acquiring image data; converting the image data into low-voltage differential signals; and sending the low-voltage differential signal to a video receiving card.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.