WO2021035387A1

WO2021035387A1 - Communication method and apparatus, video processor and backplane

Info

Publication number: WO2021035387A1
Application number: PCT/CN2019/102216
Authority: WO
Inventors: 宗靖国
Original assignee: 北京嗨动视觉科技有限公司
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2021-03-04

Abstract

Disclosed are a communication method, a communication apparatus, a video processor, and a backplane. The communication method is applied to a video processor comprising a main control apparatus, an input apparatus, an output apparatus and a backplane, and comprises, for example, the steps of: receiving delivery information from a main control apparatus; and sending the delivery information to an input apparatus and an output apparatus, so that the input apparatus and the output apparatus respectively parse the delivery information and determine whether same is delivery information belonging thereto.

Description

Communication method and device, video processor and backplane

Technical field

This application relates to the technical field of video processing, and in particular to a communication method, a communication device, a video processor, and a backplane.

Background technique

A video processor, such as a plug-in video processor, typically includes a backplane, a main control card, an input card, and an output card, and the input card and the output card adopt the form of a board card. Among them, the input card and output card communicate with the main control card through the backplane. Therefore, the communication speed of the video processor depends on the data transmission speed of the backplane and the efficiency of data interaction.

Therefore, how to improve the data transmission speed of the backplane and the efficiency of data interaction has become an urgent technical problem to be solved.

Summary of the invention

Therefore, the embodiments of the present application provide a communication method, a communication device, a video processor, and a backplane, so as to improve the data transmission speed of the backplane and the efficiency of data interaction.

On the one hand, the communication method provided by an embodiment of the present application is applicable to a video processor, wherein the video processor includes a main control device, an input device, an output device, and a backplane, and the backplane is electrically connected to the The main control device, the input device, and the output device; the communication method is applied to the backplane and includes: receiving the issued information of the main control device; and sending the issued information to the The input device and the output device are used for the input device and the output device to respectively analyze the issued information and determine whether it belongs to its own issued information.

In this embodiment, the input device and the output device determine whether the information to be sent is what they need, so as to simplify the data interaction process on the backplane, thereby improving the efficiency and data transmission speed of the data interaction on the backplane.

In an embodiment of the present application, the sending the issued information to the input device and the output device includes: sending the issued information to the input device and the output device in a broadcast form. Device.

In an embodiment of the present application, the sending the issued information to the input device and the output device includes: sending the issued information to the input device and the output device based on an Ethernet protocol Output device.

In an embodiment of the present application, the receiving information issued by the main control device includes: receiving information issued by the main control device based on an Ethernet protocol.

In an embodiment of the present application, the receiving the issued information of the main control device includes: receiving the issued data when the main control device writes; and sending the issued information to the input device And the output device, so that the input device and the output device respectively parse the issued information and determine whether it is their own issued information, including: sending the issued data to the input device and The output device is used for the input device and the output device to respectively analyze the delivered data and determine whether it is their own delivered data.

In an embodiment of the present application, the receiving the issued information of the main control device includes: receiving the issued command during the read operation of the main control device; and sending the issued information to the input device And the output device, so that the input device and the output device respectively parse the issued information and determine whether it is their own issued information, including: sending the issued command to the input device and The output device is used for the input device and the output device to respectively parse the issued command and determine whether the issued command is a request to return data by itself, and return the target when the judgment result is "yes" Data; and sending the target data to the master control device.

On the other hand, the communication device provided by the embodiments of the present application is suitable for a video processor, wherein the video processor includes a main control device, an input device, an output device, and a backplane, and the backplane is electrically connected The main control device, the input device, and the output device; the communication device is applied to the backplane and includes: a receiving module for receiving information issued by the main control device; and a sending module for Sending the issued information to the input device and the output device, so that the input device and the output device respectively analyze the issued information and determine whether it belongs to its own issued information.

In this embodiment, the backplane sends the issued information through the sending module, and the input device and the output device determine whether the issued information is what they need, so as to simplify the data interaction process on the backplane and improve the efficiency of the data interaction on the backplane. And data transfer speed.

In an embodiment of the present application, the receiving module includes: a first receiving unit, configured to receive data issued during a write operation of the master control device; and the sending module includes: a first sending unit, configured to transfer all The delivered data is sent to the input device and the output device, so that the input device and the output device respectively parse the delivered data and determine whether it is their own delivered data.

In an embodiment of the present application, the receiving module includes: a second receiving unit, configured to receive a command issued during a read operation of the main control device; and the sending module includes: a second sending unit, configured to send The issued command is sent to the input device and the output device, so that the input device and the output device respectively parse the issued command and determine whether the issued command is a request to send back data by itself, and When the judgment result is "yes", the target data is returned; and the return unit is configured to send the target data to the main control device.

In another aspect, an embodiment of the present application provides a video processor, including a backplane, including a programmable logic device, a first transceiver, a second transceiver, and a third transceiver. The first transceiver, the The second transceiver and the third transceiver are respectively electrically connected to the programmable logic device; the main control device includes a processor and a fourth transceiver electrically connected to the microprocessor, and the fourth transceiver is electrically connected Connected to the first transceiver; input device, electrically connected to the second transceiver; output device, electrically connected to the third transceiver; wherein, the first transceiver and the fourth transceiver are respectively Ethernet Network physical layer transceiver.

In this embodiment, through the structural design that the main control device and the backplane cooperate with each other, a high transmission rate Ethernet communication can be realized between the two, thereby increasing the data transmission speed of the backplane, and thus can solve the problem of The problem of slow communication speed.

In an embodiment of the present application, the Ethernet physical layer transceiver is a Gigabit Ethernet physical layer transceiver.

In an embodiment of the present application, the second transceiver and the third transceiver are respectively Ethernet physical layer transceivers.

In an embodiment of the present application, the programmable logic device is used to: receive the issued information of the main control device; and send the issued information to the input device and the output device for The input device and the output device respectively analyze the delivered information and determine whether it is their own delivered information.

In another aspect, a backplane provided by an embodiment of the present application includes: a circuit board; an input device interface, which is arranged on the circuit board and used to connect an input device; an output device interface, which is arranged on the circuit board and Used to connect to the output device; the main control device interface is arranged on the circuit board and used to connect to the main control device; the matrix switch module is arranged on the circuit board and is electrically connected to the input device interface and the output Between the device interfaces and also electrically connected to the main control device interface; and a programmable logic device, which is arranged on the circuit board and is electrically connected to the main control device interface through a first physical layer transceiver, and is electrically connected to the main control device interface through a second physical layer transceiver. The layer transceiver is electrically connected to the input device interface and the output device interface is electrically connected through the third physical layer transceiver.

In this embodiment, by arranging the first physical layer transceiver on the backplane, it can perform high-speed data communication such as Ethernet communication with the main control device, so the problem of slow data transmission speed on the backplane can be solved.

In an embodiment of the present application, the first physical layer transceiver, the second physical layer transceiver, and the third physical layer transceiver are Ethernet physical layer transceivers, and the first physical layer transceiver The layer transceiver is used to electrically connect the Ethernet physical layer transceiver of the master control device through the master control device interface; wherein the Ethernet physical layer transceiver of the master control device is electrically connected to the ARM of the master control device processor.

In summary, the above-mentioned various embodiments of the present application may have one or more advantages or beneficial effects as follows: (i) The input device and the output device determine whether the sending of information is what they need, so as to simplify the data interaction on the backplane. Process, thereby improving the efficiency of data interaction and data transmission speed on the backplane; (ii) the backplane sends information through the sending module, and the input device and output device determine whether the information is required by itself, so as to simplify the backplane The data interaction process of the backplane improves the efficiency of data interaction and the data transmission speed of the backplane; (iii) through the structural design of the main control device and the backplane that cooperate with each other, high-speed Ethernet communication can be realized between the two. Thus, the data transmission speed of the backplane is increased, so the problem of slow communication speed in the video processor can be solved; and (iv) by providing the first physical layer transceiver on the backplane, it can perform high transmission rate with the main control device Data communication such as Ethernet communication can solve the problem of slow data transmission on the backplane.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. A person of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flowchart of a communication method provided by the first embodiment of this application.

FIG. 2 is a schematic diagram of another flow of a communication method provided by the first embodiment of this application.

FIG. 3 is a schematic flowchart of still another communication method provided by the first embodiment of this application.

FIG. 4 is a schematic diagram of modules of a communication device provided by the second embodiment of this application.

FIG. 5 is a schematic structural diagram of a backplane provided by the third embodiment of this application.

FIG. 6 is a schematic diagram of the architecture of a video processor provided by the fourth embodiment of this application.

FIG. 7 is a schematic diagram of modules of a communication system provided by the fifth embodiment of this application.

FIG. 8 is a schematic diagram of modules of a storage medium provided by the sixth embodiment of this application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

In view of the above, the related technology communicates with the FPGA (Field Programmable Gate Array) device on the backplane through the FSMC (Flexible Static Memory Controller) interface method for the main control card to achieve this Communicate with input card and output card. When the main control card writes, the data is sent to the FPGA device on the backplane through the FSMC interface of the ARM processor. The FPGA device needs to determine which daughter card the data is sent to based on the relevant information, and then convert the data into the specified protocol and send it to Corresponding daughter card; when the main control card is read, the read command is issued to the FPGA device on the backplane, the FPGA device transmits the read command to the relevant daughter card, and the corresponding daughter card returns the required data to the FPGA device on the backplane , The FPGA device will return to the data temporary storage and set the data valid flag high. Since the FSMC interface is in the master-slave mode (the master card is the master device and the FPGA device on the backplane is the slave device), after the master card sends the read command, it needs to check the data valid mark in a loop, and read the data when the data mark is high. go.

It can be seen from the above that the data interaction process on the backplane of the plug-in video processor of the related technology is relatively cumbersome, especially when the main control card reads the return data of the daughter card through the backplane, and the communication of the FSMC interface The speed is slow (approximately 10Mb/s), which causes too long time to transfer large blocks of data.

[First embodiment]

1, which is a schematic flow chart of the communication method provided by the first embodiment of the application. The communication method is applied to a video processor, for example, where the video processor includes a main control device, an input device, an output device, and Backplane, the backplane typically includes programmable logic devices such as FPGA (Field Programmable Gate Array) devices, and the backplane is electrically connected to the main control device and the Input device and said output device. For example, when the video processor is a plug-in video processor, the main control device, the input device, and the output device are respectively a main control card, an input card, and an output card and other board card structures. The communication method includes, for example:

Step S1, receiving the information issued by the master control device; and

Step S2: Send the issued information to the input device and the output device, so that the input device and the output device can respectively analyze the issued information and determine whether it belongs to its own issued information.

Referring to FIG. 2, in one embodiment, the communication method includes, for example, a write operation communication method, which is specifically described as follows:

The write operation communication method is executed on the programmable logic device on the backplane and includes, for example:

Step S11, receiving the issued data during the writing operation of the master control device; and

Step S21: Send the issued data to the input device and the output device in the form of broadcast, so that the input device and the output device can respectively analyze the issued data and determine whether it is what it needs data.

In a specific embodiment, the programmable logic device sends the issued data in a broadcast form to all input devices and output devices that are electrically connected to the programmable logic device, and the broadcast form is UDP (User Datagram Protocol, User Datagram Protocol) broadcast form. Furthermore, the delivered data includes, for example, the unique identification information of the target device, and each of the unique identification information uniquely corresponds to one of the input devices or one of the output devices; the input of the delivered data is received The device and the output device respectively parse the delivered data and match the unique identification information contained in the delivered data to determine whether the delivered data is the data that they need to receive, and match the successful input device and/or The output device performs local parameter configuration or command execution according to the issued data.

Referring to FIG. 3, in one embodiment, the communication method includes, for example, a read operation communication method, which is specifically described as follows:

The read operation communication method is executed on the programmable logic device on the backplane and includes, for example:

Step S13, receiving the issued command during the read operation of the master control device;

Step S23: Send the issued command to the input device and the output device in a broadcast form, so that the input device and the output device can respectively parse the issued command and determine whether the issued command is To request to send back data by yourself, and return the target data when the judgment result is "Yes"; and

Step S25: Send the target data to the main control device.

In a specific embodiment, the programmable logic device sends the issued command to all input devices and output devices electrically connected to the programmable logic device in a broadcast form, and the broadcast form is a UDP broadcast form, Furthermore, the issued command includes, for example, the unique identification information of the target device, and the input device and the output device that received the issued command respectively parse the issued command and match the information in the issued command. The unique identification information is used to determine whether the issued command is a request to return data by itself, and the successfully matched input device and/or output device responds to the issued command to return target data.

In one embodiment, the issued command in step S13 includes a resolution information acquisition command, and the successfully matched input device returns its own resolution information to the programmable logic device according to the resolution acquisition command.

In one embodiment, in the step S1, the main control device sends information based on the Ethernet protocol, and the programmable logic device receives the issued information based on the Ethernet protocol. Specifically, in step S11, the master The control device issues data based on the Ethernet protocol during a write operation, and the programmable logic device receives the issued data based on the Ethernet protocol. In step S13, the main control device issues data based on the Ethernet protocol during a read operation. Command, the programmable logic device receives the issued command based on the Ethernet protocol.

In one embodiment, the programmable logic device sends the issued information to all input devices and output devices in the form of broadcast based on the Ethernet protocol, where the issued information may be the issued data and/ Or the issuing command.

Specifically, the Ethernet protocol is, for example, a Gigabit Ethernet protocol or other Ethernet protocols with a maximum transmission rate of 1 Gbps or more.

In summary, the communication mode between the backplane and the main control device, and the backplane and the input device and the output device in the first embodiment of the present application is based on the Ethernet protocol, especially the Gigabit Ethernet protocol for data exchange. The amplitude increases the data transmission speed, and the input device and the output device are based on the sent information to determine whether the sent information is for their own needs, which simplifies the data interaction process on the backplane and solves the complexity of the data interaction on the backplane. The communication process is complicated), thereby improving the data transmission speed and data interaction efficiency of the backplane, solving the problem of slow communication speed of the existing video processor, especially the plug-in video processor, and improving the communication speed of the video processor ; In addition, the backplane uses the form of broadcast to send and distribute information, which further improves the communication speed of the backplane.

[Second embodiment]

4, which is a schematic diagram of modules of a communication device provided by the second embodiment of this application. The communication device 10 is applied to a video processor, for example, where the video processor includes a main control device, an input device, An output device and a backplane, the backplane includes, for example, a programmable logic device, and the backplane is electrically connected to the main control device, the input device, and the output device through the programmable logic device. For example, when the video processor is a plug-in video processor, the main control device, the input device, and the output device are respectively a main control card, an input card, and an output card and other board card structures. The communication device 10 is, for example, a software function module integrated on the programmable logic device, so that the programmable logic device can implement the communication method described in the first embodiment. Specifically, the communication device 10 includes, for example:

The receiving module 11 is configured to receive the information issued by the main control device; and

The sending module 13 is configured to send the issued information to the input device and the output device, so that the input device and the output device can respectively analyze the issued information and determine whether it belongs to its own download. send Message.

In one embodiment, the receiving module 11 includes, for example, a first receiving unit 111, and the first receiving unit 111 is configured to receive data issued during a write operation of the master control device; the transmitting module 13 includes, for example, a first sending unit 131, The unit 131 is configured to send the issued data to all input devices and output devices that are electrically connected to the programmable logic device, so that the input device and the output device can respectively analyze the issued data and determine whether it is their own The required data.

In an embodiment, the receiving module 11, for example, further includes a second receiving unit 113, and the second receiving unit 113 is configured to receive a command issued during a read operation of the master control device; for example, the sending module 13 further includes a second sending unit 133. And the return unit 135, and the second sending unit 133 is used to send the issued command to all input devices and output devices electrically connected to the programmable logic device, so that the input device and the output device can analyze the data respectively. Send the command and determine whether the issued command is a request to send back data by itself, and return the target data when the judgment result is "Yes", so that the return unit 135 is used to send the target data to the Master control device.

Specifically, the various modules in the communication device 10, for example, the receiving module 11 and the sending module 13 cooperate to implement the communication method as described in the first embodiment. Therefore, the functional details of the receiving module 11 and the sending module 13 may refer to the aforementioned first embodiment. The relevant description in the embodiment will not be repeated here.

In a specific embodiment, for example, the first receiving unit 111 receives the issued data sent by the master control device based on the Gigabit Ethernet protocol during the write operation, and the issued data includes a plurality of unique identification information, and the plurality of unique identification information The identification information corresponds to multiple output devices; the first sending unit 131 sends the issued data to all input devices and output devices that are electrically connected to the programmable logic device in the form of broadcast based on the Gigabit Ethernet protocol; receives the The input device and the output device that issued the data parse the issued data to obtain the multiple unique identification information and match it with its own unique identification information (or comparison), and finally separate it from the multiple unique identification information. The corresponding multiple output devices perform local parameter configuration according to the delivered data.

In another specific embodiment, for example, the second receiving unit 113 receives a issued command sent by the master control device based on the Gigabit Ethernet protocol during a read operation, the issued command includes unique identification information, and the unique identification information corresponds to one Input device; the second sending unit 133 sends the issued command to all input devices and output devices electrically connected to the programmable logic device in the form of broadcast based on the Gigabit Ethernet protocol; all those that receive the issued command The input device and the output device parse the issued data to obtain the unique identification information and match (or compare) with its own unique identification information, and finally the input device corresponding to the unique identification information The issued command returns the target data corresponding to the issued command to the programmable logic device, and the return unit 135 sends the target data to the main control device.

[Third embodiment]

Refer to FIG. 5, which is a backplane provided by the third embodiment of this application. The backplane 30 includes, for example, a circuit board 34, a programmable logic device 35, a matrix switch module 36, a main control device interface 37, and an input device. Interface 38 and output device interface 39.

The circuit board 34 is, for example, a PCB (Printed Circuit Board, printed circuit board). The input device interface 38 is, for example, in the form of a card slot and is provided on the circuit board 34 for installing an input device, such as an input card, which is pluggably installed on the input device interface 38 in the form of a board card. The output device interface 39 is, for example, in the form of a card slot and is provided on the circuit board 34 for installing an output device. The output device is, for example, an output card, which is pluggably installed on the output device interface 39 in the form of a board card. The main control device interface 37 is, for example, in the form of a card slot and is set on the circuit board 34 for installing a main control device, such as a main control card, which is pluggable and installed in the main control device in the form of a board card.装置连接37。 Device interface 37. The matrix switch module 36 is arranged on the circuit board 34, and the main control device interface 37, the input device interface 38, and the output device interface 39 are respectively electrically connected to the matrix switch module 36. The matrix switch module 36 uses, for example, a CrossPoint Switch chip (that is, a high-speed matrix switch). Chip) and electrically connected between the input device interface 38 and the output device interface 39. The programmable logic device 35 is arranged on the circuit board 34. The programmable logic device 35 is specifically electrically connected to the main control device interface 37 through the first physical layer transceiver 31, and the programmable logic device 35 is electrically connected through the second physical layer transceiver 32. The input device interface 38 is connected, the programmable logic device 35 and the output device interface 39 are electrically connected through the third physical layer transceiver 33. Furthermore, the first physical layer transceiver 31, the second physical layer transceiver 32, and the third physical layer transceiver 33 are respectively disposed on the circuit board 34.

In one embodiment, the first physical layer transceiver 31, the second physical layer transceiver 32, and the third physical layer transceiver 33 are respectively Ethernet physical layer transceivers, and the Ethernet physical layer transceivers are, for example, gigabit Ethernet physical layer transceiver, such as Gigabit Ethernet PHY chip.

In one embodiment, the main control device connected to the main control device interface 37 includes an Ethernet physical layer transceiver and an ARM processor electrically connected to the Ethernet physical layer transceiver. The first physical layer transceiver 31 passes through the main control device. The interface 37 is electrically connected to the Ethernet physical layer transceiver to realize data exchange between the programmable logic device 35 and the ARM processor based on the Ethernet protocol.

[Fourth embodiment]

Refer to FIG. 6, which is a video processor provided by the fourth embodiment of this application. The video processor 100 is, for example, a plug-in video processor. Specifically, the video processor 100 includes, for example, a backplane 30, a main control device 40, an input device 50, and an output device 60.

Among them, the backplane 30 includes a programmable logic device 35, a first transceiver 31, a second transceiver 32, and a third transceiver 33, wherein the first transceiver 31, the second transceiver 32, and the third transceiver 33 are electrically connected to each other. The programmable logic device 35 is connected. The backplane 30 is, for example, the backplane described in the third embodiment, where the first transceiver 31, the second transceiver 32, and the third transceiver 33 correspond to those in the third embodiment, respectively. The first physical layer transceiver, the second physical layer transceiver, and the third physical layer transceiver;

The main control device 40 includes a processor 41 and a fourth transceiver 44 electrically connected to the processor 41. The fourth transceiver 44 is electrically connected to the first transceiver 31. The processor 41 is, for example, an ARM processor. In the backplane of the third embodiment, the main control device 40 is installed on the main control device interface;

The input device 50 is electrically connected to the second transceiver 32, for example, in the form of a board card. The input device 50 may also be referred to as a video input device or an input card. The backplane 30 is, for example, the backplane described in the third embodiment, and the input device 50 is installed on the input device interface;

The output device 60 is electrically connected to the third transceiver 33, which is, for example, in the form of a board card. The output device 60 may also be referred to as a video output device or an output card. The backplane 30 is, for example, the backplane described in the third embodiment, and the output device 60 is installed on the output device interface.

In one embodiment, the first transceiver 31 and the fourth transceiver 44 are Ethernet physical layer transceivers respectively. The Ethernet physical layer transceivers are, for example, gigabit Ethernet physical layer transceivers. The layer transceiver can be a Gigabit Ethernet PHY chip or other Ethernet PHY chips with a transmission bandwidth above 1G.

In one embodiment, the second transceiver 32 and the third transceiver 33 are the same as the first transceiver 31, and may be Ethernet physical layer transceivers, such as a Gigabit Ethernet PHY chip or other Ethernet with a transmission bandwidth above 1G. Network PHY chips are like 5G PHY chips.

In one embodiment, the input device 50 includes an Ethernet physical layer transceiver, such as a Gigabit Ethernet PHY chip or other Ethernet PHY chips with a transmission bandwidth above 1G, such as a 5GPHY chip, etc., and the Ethernet physical layer transceiver The second transceiver 32 is electrically connected to realize data exchange between the input device 50 and the backplane 30 based on the Ethernet protocol.

In one embodiment, the output device 60 includes an Ethernet physical layer transceiver, such as a Gigabit Ethernet PHY chip or other Ethernet PHY chips with a transmission bandwidth above 1G, such as a 5GPHY chip, etc., and the Ethernet physical layer transceiver The third transceiver 33 is electrically connected to realize data exchange between the output device 60 and the backplane 30 based on the Ethernet protocol.

In one embodiment, the programmable logic device 35 is used to receive the issued information of the main control device 40, and the issued information includes, for example, unique identification information; the programmable logic device 35 is also used to transmit the issued information to, for example, The form of broadcast is sent to all input devices 50 and output devices 60 installed on the backplane 30. The input devices 50 and output devices 60 that receive the issued information respectively parse the issued information to obtain the unique identification information and It is compared with the local unique identification information, and finally the input device 50 and/or output device 60 corresponding to the unique identification information obtains the issued information. For the specific process, refer to the communication method provided in the first embodiment above. I won't repeat it here.

In one embodiment, the programmable logic device 35 is used to receive the issued data during the write operation of the main control device 40. The issued data is, for example, the issued data during the write operation of the processor 41, and the issued data includes Unique identification information; the programmable logic device 35 is also used to broadcast the issued data to all input devices 50 and output devices 60 installed on the backplane 30, and the input device that receives the issued data 50 and the output device 60 respectively parse the delivered data to obtain the unique identification information and compare it with the local unique identification information. Finally, the input device 50 and/or output device 60 corresponding to the unique identification information is based on the following Send data for local parameter configuration and/or command execution. For the specific process, refer to the write operation communication method provided in the first embodiment described above, which will not be repeated here.

In one embodiment, for example, the programmable logic device 35 is used to receive a command issued during a read operation by the main control device 40, and the issued command is, for example, a command issued during a read operation by the processor 41, and the command is issued Including unique identification information; the programmable logic device 35 is also used to broadcast the issued command to all input devices 50 and output devices 60 installed on the backplane 30, and receive the input of the issued command The device 50 and the output device 60 respectively parse the issued command to obtain the unique identifier and compare it with the local unique identification information. Finally, the input device 50 and/or output device 60 corresponding to the unique identification information responds to the Send a command to return the target data to the programmable logic device 35, and the programmable logic device 35 sends the target data to the main control device 40, so that the processor 41 on the main control device 40 can obtain the target data, For the specific process, refer to the read operation communication method provided in the above-mentioned first embodiment, which will not be repeated here.

[Fifth Embodiment]

Refer to FIG. 7, which is a schematic diagram of modules of a communication system provided by the fifth embodiment of the present invention. The communication system 400 includes, for example, a processor 430 and a memory 410 electrically connected to the processor 430, and a computer program is stored on the memory 410. 411. The processor 430 loads the computer program 411 to implement any communication method as described in the first embodiment.

[Sixth Embodiment]

Referring to FIG. 8, the sixth embodiment of the present application provides a storage medium. The storage medium 500 is, for example, a non-volatile memory, which is, for example, a magnetic medium (such as a hard disk, a floppy disk, and a magnetic tape), and an optical medium (such as CDROM disks and DVDs), magneto-optical media (such as optical disks), and hardware devices (such as read-only memory (ROM), random access memory (RAM), flash memory, etc.) specially configured to store and execute computer-executable instructions. Computer executable instructions 510 are stored on the storage medium 500. The storage medium 500 may execute computer-executable instructions 510 by one or more processors or processing devices to implement the communication method as described in the first embodiment.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above-mentioned integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The above-mentioned software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute part of the steps of the methods in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc., which can store program codes. Medium.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A communication method, characterized in that it is suitable for a video processor, wherein the video processor includes a main control device, an input device, an output device, and a backplane, and the backplane is electrically connected to the main control device, The input device and the output device; the communication method is applied to the backplane and includes:

Receiving the information issued by the main control device; and

The delivered information is sent to the input device and the output device, so that the input device and the output device respectively parse the delivered information and determine whether it is their own delivered information.
The communication method according to claim 1, wherein the sending the issued information to the input device and the output device comprises:

Sending the issued information to the input device and the output device in a broadcast form.
The communication method according to claim 1, wherein the sending the issued information to the input device and the output device comprises:

Sending the issued information to the input device and the output device based on the Ethernet protocol.
The communication method according to claim 1, wherein the receiving information issued by the master control device comprises:

Receiving the issued information of the main control device based on the Ethernet protocol.
The communication method according to any one of claims 1 to 4, wherein the receiving information issued by the main control device comprises:

Receiving the data issued during the write operation of the master control device;

Sending the issued information to the input device and the output device, so that the input device and the output device can respectively analyze the issued information and determine whether it is their own issued information, including:

The delivered data is sent to the input device and the output device, so that the input device and the output device respectively analyze the delivered data and determine whether it belongs to the delivered data.
The communication method according to any one of claims 1 to 4, wherein the receiving information issued by the main control device comprises:

Receiving a command issued during a read operation of the master control device;

Sending the issued information to the input device and the output device so that the input device and the output device can respectively analyze the issued information and determine whether it is their own issued information, including:

Send the issued command to the input device and the output device, so that the input device and the output device respectively parse the issued command and determine whether the issued command is a request to send back data by itself , And return the target data when the judgment result is "Yes"; and

Sending the target data to the main control device.
A communication device, characterized in that it is suitable for a video processor, wherein the video processor includes a main control device, an input device, an output device, and a backplane, and the backplane is electrically connected to the main control device, The input device and the output device; the communication device is applied to the backplane and includes:

The receiving module is used to receive the information issued by the main control device; and

The sending module is configured to send the issued information to the input device and the output device, so that the input device and the output device can respectively analyze the issued information and determine whether it belongs to its own issued information information.
The communication device according to claim 7, wherein:

The receiving module includes:

The first receiving unit is configured to receive the data issued during the write operation of the master control device;

The sending module includes:

The first sending unit is configured to send the issued data to the input device and the output device, so that the input device and the output device can respectively parse the issued data and determine whether it belongs to itself Send data.
The communication device according to claim 7, wherein:

The receiving module includes:

The second receiving unit is configured to receive a command issued during a read operation of the master control device;

The sending module includes:

The second sending unit is configured to send the issued command to the input device and the output device, so that the input device and the output device respectively parse the issued command and determine the issued command Whether it is a request to return data by itself, and return the target data when the judgment result is "Yes"; and

The return unit is used to send the target data to the main control device.
A video processor, characterized in that it comprises:

The backplane includes a programmable logic device, a first transceiver, a second transceiver, and a third transceiver. The first transceiver, the second transceiver, and the third transceiver are electrically connected to the Programming logic devices;

The main control device includes a processor and a fourth transceiver electrically connected to the processor, and the fourth transceiver is electrically connected to the first transceiver;

An input device, electrically connected to the second transceiver;

An output device, electrically connected to the third transceiver;

Wherein, the first transceiver and the fourth transceiver are Ethernet physical layer transceivers respectively.
The video processor according to claim 10, wherein the Ethernet physical layer transceiver is a Gigabit Ethernet physical layer transceiver.
11. The video processor of claim 11, wherein the second transceiver and the third transceiver are Ethernet physical layer transceivers, respectively.
The video processor according to claim 10 or 11 or 12, wherein the programmable logic device is used for:

Receiving the information issued by the main control device; and

The delivered information is sent to the input device and the output device, so that the input device and the output device respectively parse the delivered information and determine whether it is their own delivered information.
A backplane is characterized in that it comprises:

Circuit board

An input device interface, which is provided on the circuit board and is used to connect an input device;

The output device interface is arranged on the circuit board and used to connect the output device;

The main control device interface is set on the circuit board and used to connect to the main control device;

A matrix switching module, arranged on the circuit board and electrically connected between the input device interface and the output device interface, and also electrically connected to the main control device interface; and

A programmable logic device, which is arranged on the circuit board and is electrically connected to the main control device interface through a first physical layer transceiver, is electrically connected to the input device interface through a second physical layer transceiver, and transmits and receives through a third physical layer The device is electrically connected to the output device interface.
The backplane according to claim 14, wherein the first physical layer transceiver, the second physical layer transceiver, and the third physical layer transceiver are Ethernet physical layer transceivers, and The first physical layer transceiver is used to electrically connect the Ethernet physical layer transceiver of the master control device through the master control device interface; wherein the Ethernet physical layer transceiver of the master control device is electrically connected to the The ARM processor of the main control device.