CN112383383B - Adaptive adjustment method for multichannel data transmission and data processing system - Google Patents
Adaptive adjustment method for multichannel data transmission and data processing system Download PDFInfo
- Publication number
- CN112383383B CN112383383B CN202011252776.4A CN202011252776A CN112383383B CN 112383383 B CN112383383 B CN 112383383B CN 202011252776 A CN202011252776 A CN 202011252776A CN 112383383 B CN112383383 B CN 112383383B
- Authority
- CN
- China
- Prior art keywords
- data
- physical layer
- channel
- multichannel
- field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Computer Security & Cryptography (AREA)
- Communication Control (AREA)
Abstract
The application relates to the technical field of multichannel data transmission, and particularly discloses a self-adaptive adjustment method and a data processing system for multichannel data transmission, wherein the method comprises the steps of determining a multichannel physical layer layering command according to the physical layer configuration of each channel, and sending the multichannel physical layer layering command to a controlled end; receiving first feedback information of a controlled end, and sending the first feedback information to a preset multichannel physical layer layered confirmation field in a data frame structure, wherein the first feedback information comprises actual multichannel physical layer layered information; and resetting a multi-channel adjustment confirmation field preset in the data frame structure, and sending the data frame to the controlled end so that the controlled end adjusts the multi-channel data transmission mode. The controlled end adjusts the multi-channel data transmission mode according to the new data frame structure, namely, multi-channel physical layer layered adjustment is realized, the working stability of the physical layer is ensured, and the problem that the display terminal is not well displayed due to unstable working caused by interference of the physical layer is solved.
Description
Technical Field
The invention relates to the technical field of multichannel data transmission, in particular to a self-adaptive adjusting method and a data processing system for multichannel data transmission.
Background
At present, with a Video image processing system, in particular, a Video image processing system with a Display Port (DP) of VESA (Video Electronics Standards Association), an MIPI (Mobile Industry Processor Interface standard), and an HDMI (High Definition Multimedia Interface standard), the Video image processing system is used to drive a display terminal such as a liquid crystal display or an organic light emitting diode to perform multi-channel display, and often causes unstable working conditions such as working frequency point jitter due to interference of a physical layer of each channel, and further causes an undesirable display phenomenon such as image jitter when the display terminal displays.
Disclosure of Invention
Based on this, it is necessary to provide an adaptive adjustment method and a data processing system for multichannel data transmission, aiming at the problem of unstable physical layer operation when multichannel data is transmitted.
A multi-channel data transmission adaptive adjustment method is applied to a data processing system, the data processing system comprises a control end and a controlled end, the controlled end externally transmits data through multiple channels, the multi-channel data transmission adaptive adjustment method is executed by the control end, and the multi-channel data transmission adaptive adjustment method comprises the following steps:
determining a multi-channel physical layer layering instruction according to the physical layer configuration of each channel, and sending the multi-channel physical layer layering instruction to the controlled end;
receiving first feedback information of the controlled terminal, and sending the first feedback information to a preset multichannel physical layer layering confirmation field in a data frame structure, wherein the first feedback information comprises actual multichannel physical layer layering information;
and resetting a preset multichannel adjustment confirmation field in the data frame structure, and sending the data frame to the controlled end so that the controlled end adjusts a multichannel data transmission mode.
In one embodiment, the step of determining a multi-channel physical layer layering instruction according to the physical layer configuration of each channel includes:
and determining a multi-channel physical layer layering instruction according to the physical layer frequency point condition, the link training condition and the error rate of each channel.
In one embodiment, the multi-channel physical layer layered instruction comprises a layered parameter selection field, a layered adjustment priority field, a layered physical layer adjustment policy field, and a layered physical layer structure determination field;
the hierarchical parameter selection field is used for defining physical layer operation parameters of each channel, and the physical layer operation parameters comprise a frequency point characteristic value jitter range, physical layer jitter caused by frequency point crosstalk, a link training failure rate and an error rate;
the hierarchical adjustment priority field is used for defining the priority of the physical layer hierarchical adjustment, and the priority of the physical layer hierarchical adjustment is correlated with the physical layer operation parameter;
the layered physical layer adjustment strategy field is used for defining an adjustment strategy of physical layer frequency points of each channel;
and the layered physical layer structure confirmation field is used for defining the identification of the physical layer frequency point adjustment strategy of each channel.
In one embodiment, before the step of resetting a multi-channel adjustment acknowledge field preset in the data frame structure and sending the data frame to the controlled terminal, so that the controlled terminal adjusts a multi-channel data transmission mode, the method for adaptively adjusting multi-channel data transmission further includes:
determining a multichannel data rearrangement and transmission instruction according to the data configuration of each channel, and sending the multichannel data rearrangement and transmission instruction to the controlled end;
and receiving second feedback information of the controlled end, and sending the second feedback information to a preset multichannel data rearrangement and transmission confirmation field in the data frame structure, wherein the second feedback information comprises actual multichannel data rearrangement and transmission information.
In one embodiment, the step of determining a multichannel data rearrangement and transmission instruction according to the data configuration of each channel includes:
and determining multichannel data rearrangement and transmission instructions by dynamically detecting the transmission condition of the data in each channel.
In one embodiment, the multichannel data rearrangement and transmission instruction comprises a data rearrangement indication field, a data rearrangement mode field, a data extra delay insertion field and a data rearrangement feedback field;
the data rearrangement indication field is used for defining whether each channel needs data rearrangement;
the data rearrangement mode field is used for defining a data rearrangement strategy, and the data rearrangement strategy is correlated with the transmission condition of each channel data;
the data extra delay insertion field is used for defining whether extra delay and extra delay values need to be inserted after different channels are subjected to data rearrangement;
the data rearrangement feedback field is used for defining a data rearrangement result.
In one embodiment, the data rearrangement strategy comprises merging and marking repeated data of each channel, compressing and marking non-repeated data of each channel, splitting and marking data at different link rates, and performing parallel rearrangement and serial rearrangement on data of each channel.
In one embodiment, after the step of receiving the second feedback information of the controlled terminal and sending the second feedback information to the multichannel data reordering and transmission confirmation field preset in the data frame structure, the method for adaptively adjusting multichannel data transmission further includes:
acquiring a time delay matching identification parameter;
determining an extra time delay value according to the time delay matching identification parameter;
and sending the extra delay value to a preset delay matching confirmation field in the data frame structure and the data extra delay insertion field in the multichannel data rearrangement and transmission instruction.
A data processing system comprises a control end and a controlled end, wherein the controlled end externally transmits data through multiple channels, and the control end is used for executing the following steps:
determining a multi-channel physical layer layering instruction according to the physical layer configuration of each channel, and sending the multi-channel physical layer layering instruction to the controlled end;
receiving first feedback information of the controlled terminal, and sending the first feedback information to a preset multichannel physical layer layering confirmation field in a data frame structure, wherein the first feedback information comprises actual multichannel physical layer layering information;
resetting a preset multichannel adjustment confirmation field in the data frame structure, and sending the data frame to the controlled terminal so that the controlled terminal adjusts multichannel data.
A computer readable storage medium having stored therein computer instructions which, when executed by a processor, implement the adaptive adjustment method for multi-channel data transmission as described above.
Before a controlled end transmits data to the outside through multiple channels, the control end firstly determines a multi-channel physical layer layering instruction according to the current physical layer configuration, sends the multi-channel physical layer layering instruction to the controlled end, obtains actual multi-channel physical layer layering information according to first feedback information of the controlled end, sends the first feedback information to a multi-channel physical layer layering confirmation field preset in a data frame, resets the multi-channel adjustment confirmation field preset in the data frame, sends the data frame to the controlled end, and adjusts a multi-channel data transmission mode according to a new data frame structure by the controlled end, namely, the multi-channel physical layer layering adjustment is realized, the working stability of a physical layer is ensured, the external transmission data is configured on the basis of the physical layer of each channel after adjustment, and the problem of unstable working caused by interference of the physical layer is solved, and further causes the problem of poor display of the display terminal.
Drawings
Fig. 1 is a flowchart of an adaptive adjustment method for multichannel data transmission according to an embodiment of the present application;
fig. 2 is a block flow diagram of an adaptive adjustment method for multichannel data transmission according to another embodiment provided in the first embodiment of the present application;
3-5 are three examples of data rearrangement modes, respectively;
fig. 6 is a schematic structural diagram of a data processing system according to an embodiment of the present application.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
At present, after the data processing system processes the data, the data can be transmitted to the display terminal by adopting multiple channels to realize display. In the process of multi-channel data transmission, because the physical layer of each channel is susceptible to interference, the physical layer of each channel can be unstable in working, for example, the problems of frequency point jitter and the like occur, and then jitter occurs when a display terminal displays a picture. Taking a video image processing system as an example, when multi-channel display is supported, because a video image processing IP core adopted by the video image processing system generates interference on a multi-channel physical layer, the working frequency point is disturbed, and the problem of image jitter during display is caused.
In order to solve the above problems, the present application provides an adaptive adjustment method of multichannel data transmission, a data processing system, and a computer-readable storage medium.
Example one
The embodiment provides a self-adaptive adjustment method for multichannel data transmission, which is applied to a data processing system. The data processing system comprises a control end and a controlled end, the control end is used for configuring various parameters in the data processing system, analyzing, processing and controlling data streams, realizing control of signal interaction in the data processing system and the like, and the controlled end is used for transmitting data outwards through multiple channels. Referring to fig. 1, the adaptive adjustment method for multichannel data transmission provided by this embodiment is executed by a control end, and includes the following steps:
and step S10, determining a multi-channel physical layer layering command according to the physical layer configuration of each channel, and sending the multi-channel physical layer layering command to the controlled end.
Step S30, receiving first feedback information of the controlled end, and sending the first feedback information to a multi-channel physical layer layered acknowledgement field preset in the data frame structure, where the first feedback information includes actual multi-channel physical layer layered information.
Step S50, resetting a multi-channel adjustment acknowledge field preset in the data frame structure, and sending the data frame to the controlled end, so that the controlled end adjusts the multi-channel data transmission mode.
Before a controlled end transmits data to the outside through multiple channels, the control end firstly determines a multi-channel physical layer layering instruction according to the current physical layer configuration, sends the multi-channel physical layer layering instruction to the controlled end, obtains actual multi-channel physical layer layering information according to first feedback information of the controlled end, sends the first feedback information to a multi-channel physical layer layering confirmation field preset in a data frame, finally resets the multi-channel adjustment confirmation field preset in the data frame, sends the data frame to the controlled end, the controlled end adjusts a multi-channel data transmission mode according to a new data frame structure with the multi-channel physical layer layering confirmation field and the multi-channel adjustment confirmation field, namely, multi-channel physical layer layering adjustment is realized, the working stability of a physical layer is ensured, and the data is transmitted to the outside based on the physical layer configuration of each channel after adjustment, the problem of the display terminal that the work is unstable that leads to because of the physical layer receives the interference, and then arouses shows badly is solved.
Specifically, in step S10, the number and configuration of all channels and the physical layer configuration of each channel are obtained, and the operating condition of the physical layer of each channel can be known according to the current physical layer configuration of each channel, so that the adjustment direction of the multi-channel physical layer is determined, the multi-channel physical layer layering command is determined, and the multi-channel physical layer layering command is sent to the controlled end for the controlled end to confirm.
In step S30, after the controlled end obtains the multi-channel physical layer layering command, the multi-channel physical layer layering command is read, actual multi-channel physical layer layering information is confirmed by combining the multi-channel physical layer layering command, first feedback information is generated, the first feedback information is sent back to the control end, and the first feedback information is written into a multi-channel physical layer layering confirmation field preset in the data frame structure, so as to confirm multi-channel physical layer layering. The data frame structure is preset for the control end, and a multi-channel physical layer layered confirmation field is added in the traditional data frame structure, and the multi-channel physical layer layered confirmation field is the actual physical layer layered adjustment strategy implementation indication.
In step S50, after writing the first feedback information into the multi-channel physical layer layered acknowledgement field preset in the data frame structure and confirming that the multi-channel physical layer is layered, resetting the multi-channel adjustment acknowledgement field preset in the data frame structure, confirming that multi-channel adjustment is performed, and sending the new data frame structure to the controlled end, where the controlled end sends data to the outside based on sending the new data frame structure and simultaneously performs multi-channel physical layer layered adjustment, thereby realizing adjustment of the multi-channel data transmission mode.
In this embodiment, a multi-channel adjustment confirm field is added in a conventional data frame structure, and the multi-channel adjustment confirm field is a multi-channel adjustment indication after multi-channel physical layer layered confirmation.
In one embodiment, the step of determining the multi-channel physical layer layering instruction according to the physical layer configuration of each channel in step S10 includes: and determining a multi-channel physical layer layering instruction according to the physical layer frequency point condition, the link training condition and the error rate of each channel. The physical layer frequency point condition of each channel may have conditions that the jitter range of the characteristic value of the frequency point is too large, crosstalk occurs with the frequency points of other channels, and the like, the link training condition may include a condition that the link training failure rate is too high, and the error rate may include a condition that the error rate is too high. After the above-described various operating conditions of the channel are determined, then a multi-channel physical layer layering instruction may be determined.
In one embodiment, the multi-channel physical layer layered instruction includes a layered parameter selection field, a layered adjustment priority field, a layered physical layer adjustment policy field, and a layered physical layer structure determination field.
The hierarchical parameter selection field is used for defining physical layer operation parameters of each channel, and the physical layer operation parameters comprise a frequency point characteristic value jitter range, physical layer jitter caused by frequency point crosstalk, a link training failure rate and an error rate.
The hierarchical adjustment priority field is used for defining the priority of the physical layer hierarchical adjustment, the priority of the physical layer hierarchical adjustment is correlated with the physical layer operation parameters, and the hierarchical adjustment priority is determined after the hierarchical parameters are selected. For example, when crosstalk occurs with frequency points of other channels, the priority of physical layer layered adjustment is high; when the failure rate of the link training is too high, the priority of the physical layer hierarchical adjustment is middle; and when the jitter range of the frequency point characteristic value is too large, the priority of the physical layer hierarchical adjustment is low.
And the layered physical layer adjustment strategy field is used for defining the adjustment strategy of the physical layer frequency point of each channel. For example, when the jitter range of the frequency point characteristic value is too large, the adjustment strategy may be to configure the frequency points supported by other channels; when crosstalk occurs with frequency points of other channels, the adjustment strategy can be to configure the channels with crosstalk as a group and select the frequency point with the largest frequency point difference; when the link training failure rate is too high, the adjustment strategy may be to reconfirm the physical channel condition for the channel upper computer.
And the layered physical layer structure confirmation field is used for defining the identification of the physical layer frequency point adjustment strategy of each channel. That is, after the layered physical layer adjustment policy is determined, the relevant information such as the corresponding policy number is written in this field.
When the multi-channel physical layer layered instruction is sent to the controlled end, the controlled end reads each field in the multi-channel physical layer layered instruction, determines actual multi-channel physical layer layered information and configuration information according to actual conditions, generates first feedback information and sends the first feedback information to the control end, and therefore the control end sends the finally determined multi-channel physical layer layered information to a multi-channel physical layer layered confirmation field reserved in a data frame structure.
The following table is a specific example of physical layer layering adjustment:
table 1-4 specific examples of physical layer layered tuning of lanes
In one embodiment, referring to fig. 2, before step S50, that is, the step of resetting the multi-channel adjustment acknowledge field preset in the data frame structure and sending the data frame to the controlled end, so that the controlled end adjusts the multi-channel data transmission manner, the adaptive adjustment method for multi-channel data transmission provided in this embodiment further includes the following steps:
and step S40, determining a multichannel data rearrangement and transmission instruction according to the data configuration of each channel, and sending the multichannel data rearrangement and transmission instruction to the controlled end.
Step S41, receiving second feedback information of the controlled end, and sending the second feedback information to a multichannel data rearrangement and transmission confirmation field preset in the data frame structure, where the second feedback information includes actual multichannel data rearrangement and transmission information.
Specifically, for example, when pixel data is transmitted in multiple channels, parallel pixel data is increased to cause channel blockage, and thus pixel data sent in multiple channels is discontinuous to cause image display discontinuity or discontinuity. Moreover, due to the delay of sending control and timing information on multiple channels, random delay of the control and timing information on each channel relative to pixel data is easily caused, and unknown adaptation is generated among the control information, the timing information and the pixel data, so that the problems of incorrect color, increased or decreased brightness, failed link training, image jitter and the like during image display are caused.
Therefore, in this embodiment, in addition to adjusting the physical layer hierarchy of multiple channels, the rearrangement and transmission are performed on the multiple channels of data to solve the above problem.
The method comprises the steps of firstly obtaining the current data configuration condition of each channel, further obtaining the operation condition of data of each channel, accordingly determining the multichannel data transmission adjustment direction, determining multichannel data rearrangement and transmission instructions, and sending the multichannel data rearrangement and transmission instructions to a controlled end for the controlled end to confirm. When the controlled terminal receives the multichannel data rearrangement and transmission instruction, the multichannel data rearrangement and transmission instruction is read, the actual multichannel data rearrangement and transmission instruction is determined by combining the multichannel data rearrangement and transmission instruction, second feedback information is generated, the second feedback information is sent back to the control terminal, the second feedback information is written into a preset multichannel data rearrangement and transmission confirmation field in a data frame structure, and the multichannel data rearrangement and transmission confirmation field is an actual multichannel data rearrangement and transmission adjustment strategy implementation instruction.
After the second feedback information is written into the multichannel data rearrangement and transmission confirmation field, the multichannel adjustment confirmation field preset in the data frame structure is reset, the implementation of multichannel adjustment is confirmed, the new data frame structure is sent to the controlled end, the controlled end sends data outwards based on the sending of the new data frame structure, and meanwhile multichannel physical layer hierarchical adjustment and multichannel data rearrangement and transmission adjustment are implemented, and adjustment of a multichannel data transmission mode is achieved.
Through the steps, the multichannel data are rearranged and transmitted and adjusted, and the time delay during data transmission is effectively controlled, so that the time delay of the data reaching the multichannel can meet the requirements of control and time sequence information, and the normal display of the image of the display terminal is realized.
In one embodiment, the step of determining the multichannel data rearrangement and transmission instruction according to the data configuration of each channel in step S40 includes: and determining multichannel data rearrangement and transmission instructions by dynamically detecting the transmission condition of the data in each channel. In the transmission condition of data in each channel, a large amount of repeated data and unnecessary data may exist, and the link rate exceeds a preset threshold. And determining multichannel data rearrangement and transmission instructions according to the transmission condition of each channel data.
In one embodiment, the multichannel data rearrangement and transmission instruction comprises a data rearrangement indication field, a data rearrangement mode field, a data extra delay insertion field and a data rearrangement feedback field.
Wherein, the data rearrangement indication field is used for defining whether each channel needs data rearrangement.
The data rearrangement mode field is used for defining a data rearrangement strategy, and the data rearrangement strategy is correlated with the transmission condition of each channel data. For example, when the link rate exceeds a preset threshold, the data rearrangement strategy can be processed in a single mode, combination and compression are not performed, and time delay is not inserted; when the link rate of the channel is the same as that of other channels and a large amount of repeated data is detected, the data rearrangement strategy can be used for merging and marking the repeated data and compressing and marking non-repeated data, and a relative time delay + parallel rearrangement mode with other channels is adopted; when the link rates of other channels are the same, but the link rates change after the frequency point is adjusted, the data rearrangement strategy can be to split and mark data at different link rates, and rearrange in a serial connection mode after the data of other channels.
The data extra delay insertion field is used for defining whether the different channels need to insert extra delay and extra delay values after data rearrangement. The insertion of the extra delay can be used to match the control, timing and delay differences between data in the data processing system, the extra delay value is determined after the data is rearranged, taking pixel data as an example, the number of pixel points at an interval after rearrangement is multiplied by the pixel time to obtain the interval time, thereby determining the extra delay value.
The data rearrangement feedback field is used for defining a data rearrangement result.
In one embodiment, the data rearrangement strategy comprises merging and marking repeated data of each channel, compressing and marking non-repeated data of each channel, splitting and marking data at different link rates, and parallel rearrangement and serial rearrangement of data of each channel.
The following table is a specific example of data reordering and transmission adjustment:
table 2-rearrangement of pixel data and adjustment of transmission in different cases
In addition, FIGS. 3 to 5 show three rearrangement patterns. In fig. 3, the pixel data of channels 1 and 4 are connected in series, the pixel data of channels 2 and 3 are rearranged in parallel, and all the extra time delay is a reserved portion; in fig. 4, the pixel data of all channels are connected in series, and all extra time delay is a reserved part; the pixel data for all channels in fig. 5 are rearranged in parallel, and all extra time delay is a reserved portion.
In one embodiment, after step S41, that is, the step of receiving the second feedback information of the controlled end and sending the second feedback information to the multichannel data reordering and transmission confirmation field preset in the data frame structure, the method for adaptively adjusting multichannel data transmission provided in this embodiment further includes the following steps:
and step S42, acquiring a time delay matching identification parameter.
And step S43, determining an extra time delay value according to the time delay matching identification parameter.
And step S44, sending an extra delay value to a preset delay matching confirmation field in the data frame structure, and sending a data extra delay insertion field in the multichannel data rearrangement and transmission instruction.
Specifically, taking pixel data as an example, the delay matching identification parameters may include a start time, a line time, a field time, an end time, a total number of pixel data per line, and a total number of pixel data per field. Determining the extra time delay, firstly determining the time delay (calculated by pixel clock) between the actual starting time of the pixels in each row and the starting time of the system, and determining each row; meanwhile, when each line is finished, the problem of insufficient line time caused by time delay is compensated by correcting the line synchronization, line blanking and other modes for controlling the length of the time sequence signal; secondly, determining the time delay between the actual starting time of the pixels in each field and the starting time of the pixels in each field of the system (calculated according to the pixel time), determining the time delay between the actual ending time of the pixels in each field and the ending time of the pixels in each field of the system, and correcting the field synchronization signal and the field blanking signal by calculating the total time delay (the ending time delay difference minus the starting time delay difference) in each field to compensate the problem of insufficient field time caused by the time delay.
And when the extra time delay value is determined, the extra time delay value is sent to a preset time delay matching confirmation field in the data frame structure and a corresponding field in the multichannel data rearrangement and transmission instruction, so that after the multichannel adjustment confirmation field in the data frame structure is reset subsequently, the insertion of extra time delay can be implemented when the controlled end implements multichannel data rearrangement and transmission adjustment.
The data frame structure of each line of the standard Video stream includes BS (Blanking Start), VB-ID (Vertical Blanking Identifier), Mvid (value for Video) carrying frame timing information, naud (value for audio), Dummy Video, BE (Blanking End), pixel data, FS (Fill Start), Fill Video, and FE (Fill End). In this embodiment, a multi-channel physical layer layered acknowledgement field, a multi-channel data rearrangement and transmission acknowledgement field, and a delay matching acknowledgement field are inserted between BE and Mvid, and a multi-channel adjustment acknowledgement field is inserted between Naud and pixel data, where the multi-channel physical layer layered acknowledgement field, the multi-channel data rearrangement and transmission acknowledgement field, the delay matching acknowledgement field, and the multi-channel adjustment acknowledgement field together form an auxiliary frame structure in a data frame structure.
In one embodiment, after step S50, that is, after the step of resetting the multi-channel adjustment confirm field preset in the data frame structure and sending the data frame to the controlled end, so that the controlled end adjusts the multi-channel data transmission method, the method for adaptively adjusting multi-channel data transmission provided in this embodiment further includes: and receiving an adjustment result returned by the controlled end. And then the adjustment process of the multi-channel data transmission mode is confirmed to be finished.
Example two
The embodiment provides a data processing system, which includes a control end and a controlled end, wherein the controlled end transmits data to the outside through multiple channels, and the control end is used for executing the following steps:
and step S10, determining a multi-channel physical layer layering command according to the physical layer configuration of each channel, and sending the multi-channel physical layer layering command to the controlled end.
Step S30, receiving first feedback information of the controlled end, and sending the first feedback information to a multi-channel physical layer layered acknowledgement field preset in the data frame structure, where the first feedback information includes actual multi-channel physical layer layered information.
Step S50, reset the multi-channel adjustment acknowledge field preset in the data frame structure, and send the data frame to the controlled end, so that the controlled end adjusts the multi-channel data.
For specific content executed by the control end, reference may be made to the detailed description of the first embodiment, which is not described herein again.
In this embodiment, the control terminal may include a control module such as an FPGA, and the controlled terminal may include a transmission module connected between the control module and the display terminal, and is responsible for transmitting the data frames output by the control module to the display terminal in a multi-channel manner to implement display.
Referring to fig. 6, in a specific example, the control end is an FPGA module and is mainly responsible for implementing implementation parts requiring a large amount of data processing and low round-trip delay (latency), such as storage control, peripheral control, and video interface IP core implementation. The FPGA module comprises a bus interaction module, an MCU (micro control Unit) video stream preprocessing module, a video data stream transmission control module, a clock control module, an embedded soft core control module, a bus controller module, an internal storage controller module, an external control module, a display clock generator module, a video time schedule controller module and a video interface IP core module.
The bus interaction module is mainly responsible for the functions of selection, decision and the like of all other modules connected to the bus interaction module. The MCU video stream preprocessing module is mainly responsible for preprocessing and converting the video data stream input from the external storage module according to the format and parameter types set by the system so as to facilitate the post-processing. And the video data stream transmission control module is mainly responsible for controlling the time sequence, parameters and the like of the data stream after data stream preprocessing and conversion. The clock control module is mainly responsible for generating and controlling a global clock in the video image processing system. The embedded soft core control module is a control core of the FPGA module, and is mainly responsible for core functions of timing control, parameter configuration, physical process implementation and the like of all modules inside the FPGA module, and the embedded soft core control module can be used in the implementation of the core functions, such as Xilinx MicroBlaze and the like, but is not limited to the implementation. The bus controller module is mainly responsible for controlling all modules connected with the bus interaction module, but is not limited to this. The video pattern processing module is mainly responsible for mode conversion, timing control and the like of video image data streams corresponding to the video interface IP core module, but is not limited thereto. The internal memory controller module is mainly responsible for controlling the fast memory module, including but not limited to writing/reading of data stream, frame control, and the like. The peripheral control module is mainly responsible for controlling all peripheral modules, including but not limited to enabling/closing of peripherals, control of operating modes, and the like. The display clock generator module is mainly responsible for timing control of all modules, including but not limited to the video interface IP core module and the video interface physical layer implementation module. The video timing controller module is mainly responsible for data conversion, timing control and other processing when data input from the video pattern processing module is transmitted to the video interface IP core module, but is not limited thereto.
The controlled end is a video interface physical layer implementation module, and is mainly responsible for driving the physical layer implementation required by the display module, such as, but not limited to, TX/RX (Transmitter/Receiver) -PHY of DisplayPort, DPHY of MIPI, and the like. The video interface control system comprises a physical layer configuration and a high-speed data channel, wherein the physical layer configuration is connected with a video interface IP core module, and the high-speed data channel is connected with a display terminal.
The FPGA module is also connected with an embedded control module, and the embedded control module is connected with the MCU video stream preprocessing module. The embedded control module may use any embedded chip and system, which is mainly responsible for initiating signaling interaction, such as reading/writing registers, enabling/disabling video display modules and modules, peripheral control, video display module parameter settings, etc.
The data processing system also comprises an external storage module, a fast storage module and a peripheral module. The external storage module is mainly responsible for storing original data streams of video images to be displayed in the video image processing system, and storage media such as NandFlash and SSD are applied to the external storage module, but not limited to the external storage module. The fast storage module is used in an implementation process that requires a large amount of data processing and low round-trip delay (latency) inside the FPGA module, and in order to reduce the delay and delay storage, the module applies a fast and low-delay physical device, such as DDR3, but is not limited thereto. The peripheral modules include GPIO (General-purpose input/output), UART (Universal Asynchronous Receiver/Transmitter), USB (Universal Serial Bus), network interface, and the like, but are not limited thereto.
EXAMPLE III
The embodiment provides an electronic device which comprises a memory and a processor. The memory and the processor are communicatively connected to each other, and may be connected by a bus or other means.
The processor may be a Central Processing Unit (CPU). The Processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions corresponding to the adaptive adjustment method for multichannel data transmission in the embodiments of the present invention. The processor executes various functional applications and data processing of the processor by running non-transitory software programs, instructions and modules stored in the memory, i.e., an adaptive adjustment method for multi-channel data transmission is realized.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and such remote memory may be coupled to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The method for adaptively adjusting multichannel data transmission is applied to a data processing system, the data processing system comprises a control end and a controlled end, the controlled end externally transmits data through multiple channels, the method for adaptively adjusting multichannel data transmission is executed by the control end, and the method for adaptively adjusting multichannel data transmission comprises the following steps:
determining a multi-channel physical layer layering instruction according to the physical layer configuration of each channel, and sending the multi-channel physical layer layering instruction to the controlled end;
receiving first feedback information of the controlled terminal, and sending the first feedback information to a preset multichannel physical layer layering confirmation field in a data frame structure, wherein the first feedback information comprises actual multichannel physical layer layering information;
and resetting a preset multichannel adjustment confirmation field in the data frame structure, and sending the data frame to the controlled end so that the controlled end adjusts a multichannel data transmission mode.
2. The adaptive adjustment method for multichannel data transmission according to claim 1, wherein the step of determining the multichannel physical layer layering command according to the physical layer configuration of each channel includes:
and determining a multi-channel physical layer layering instruction according to the physical layer frequency point condition, the link training condition and the error rate of each channel.
3. The adaptive adjustment method for multichannel data transmission according to claim 1, wherein the multichannel physical layer layering command includes a layering parameter selection field, a layering adjustment priority field, a layering physical layer adjustment strategy field, and a layering physical layer structure acknowledgement field;
the hierarchical parameter selection field is used for defining physical layer operation parameters of each channel, and the physical layer operation parameters comprise a frequency point characteristic value jitter range, physical layer jitter caused by frequency point crosstalk, a link training failure rate and an error rate;
the hierarchical adjustment priority field is used for defining the priority of the physical layer hierarchical adjustment, and the priority of the physical layer hierarchical adjustment is correlated with the physical layer operation parameter;
the layered physical layer adjustment strategy field is used for defining an adjustment strategy of physical layer frequency points of each channel;
and the layered physical layer structure confirmation field is used for defining the identification of the physical layer frequency point adjustment strategy of each channel.
4. The adaptive adjustment method for multichannel data transmission according to claim 1, wherein before the step of resetting a multichannel adjustment acknowledge field preset in the data frame structure and sending the data frame to the controlled terminal, so that the controlled terminal adjusts a multichannel data transmission mode, the adaptive adjustment method for multichannel data transmission further comprises:
determining a multichannel data rearrangement and transmission instruction according to the data configuration of each channel, and sending the multichannel data rearrangement and transmission instruction to the controlled end;
and receiving second feedback information of the controlled end, and sending the second feedback information to a preset multichannel data rearrangement and transmission confirmation field in the data frame structure, wherein the second feedback information comprises actual multichannel data rearrangement and transmission information.
5. The adaptive adjustment method for multichannel data transmission according to claim 4, wherein the step of determining multichannel data rearrangement and transmission instructions according to the data configuration of each channel includes:
and determining multichannel data rearrangement and transmission instructions by dynamically detecting the transmission condition of the data in each channel.
6. The adaptive adjustment method for multichannel data transmission according to claim 4, wherein the multichannel data rearrangement and transmission instruction includes a data rearrangement indication field, a data rearrangement mode field, a data extra delay insertion field, and a data rearrangement feedback field;
the data rearrangement indication field is used for defining whether each channel needs data rearrangement;
the data rearrangement mode field is used for defining a data rearrangement strategy, and the data rearrangement strategy is correlated with the transmission condition of each channel data;
the data extra delay insertion field is used for defining whether extra delay and extra delay values need to be inserted after different channels are subjected to data rearrangement;
the data rearrangement feedback field is used for defining a data rearrangement result.
7. The adaptive adjustment method for multi-channel data transmission according to claim 6, wherein the data reordering strategy comprises merging and marking duplicate data of each channel, compressing and marking non-duplicate data of each channel, splitting and marking data at different link rates, and performing parallel reordering and serial reordering on data of each channel.
8. The adaptive adjustment method for multichannel data transmission according to claim 6, wherein after the steps of receiving the second feedback information of the controlled terminal and sending the second feedback information to the multichannel data reordering and transmission acknowledgement field preset in the data frame structure, the adaptive adjustment method for multichannel data transmission further comprises:
acquiring a time delay matching identification parameter;
determining an extra time delay value according to the time delay matching identification parameter;
and sending the extra delay value to a preset delay matching confirmation field in the data frame structure and the data extra delay insertion field in the multichannel data rearrangement and transmission instruction.
9. A data processing system is characterized by comprising a control end and a controlled end, wherein the controlled end externally transmits data through multiple channels, and the control end is used for executing the following steps:
determining a multi-channel physical layer layering instruction according to the physical layer configuration of each channel, and sending the multi-channel physical layer layering instruction to the controlled end;
receiving first feedback information of the controlled terminal, and sending the first feedback information to a preset multichannel physical layer layering confirmation field in a data frame structure, wherein the first feedback information comprises actual multichannel physical layer layering information;
resetting a preset multichannel adjustment confirmation field in the data frame structure, and sending the data frame to the controlled terminal so that the controlled terminal adjusts multichannel data.
10. A computer-readable storage medium, having stored thereon computer instructions which, when executed by a processor, implement the adaptive adjustment method for multichannel data transmission according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252776.4A CN112383383B (en) | 2020-11-11 | 2020-11-11 | Adaptive adjustment method for multichannel data transmission and data processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252776.4A CN112383383B (en) | 2020-11-11 | 2020-11-11 | Adaptive adjustment method for multichannel data transmission and data processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112383383A CN112383383A (en) | 2021-02-19 |
| CN112383383B true CN112383383B (en) | 2021-09-14 |
Family
ID=74582034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011252776.4A Active CN112383383B (en) | 2020-11-11 | 2020-11-11 | Adaptive adjustment method for multichannel data transmission and data processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112383383B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113259769B (en) * | 2021-04-07 | 2022-05-24 | 苏州华兴源创科技股份有限公司 | Video source switching method and device, electronic equipment and computer readable storage medium |
| CN112995542B (en) * | 2021-05-11 | 2021-09-07 | 苏州华兴源创科技股份有限公司 | Data transmission method and device, electronic equipment and computer readable storage medium |
| CN113794850B (en) * | 2021-09-30 | 2024-04-26 | 苏州华兴源创科技股份有限公司 | Timing correction method, apparatus, electronic device and readable storage medium |
| CN114257772B (en) * | 2021-11-26 | 2024-09-10 | 苏州华兴源创科技股份有限公司 | Data transmission adjustment method and device, computer equipment and readable storage medium |
| CN118089853B (en) * | 2024-04-18 | 2024-07-19 | 帝凯(福建)电力成套设备有限公司 | Ring main unit gas online detection system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101438A (en) * | 2015-07-10 | 2015-11-25 | 努比亚技术有限公司 | Data allocation method and device for multiple data channels |
| CN109640013A (en) * | 2018-12-20 | 2019-04-16 | 苏州华兴源创科技股份有限公司 | A kind of time sequence calibration method and chip testing machine |
| CN110336650A (en) * | 2019-07-02 | 2019-10-15 | 苏州华兴源创科技股份有限公司 | A kind of Signalling exchange system and method |
| CN111711858A (en) * | 2020-06-08 | 2020-09-25 | 苏州华兴源创科技股份有限公司 | Data transmission method, device, integrated chip and video image processing system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8233069B2 (en) * | 2008-12-12 | 2012-07-31 | Analog Devices, Inc. | Dithering techniques to reduce mismatch in multi-channel imaging systems |
| KR101697385B1 (en) * | 2012-04-05 | 2017-02-01 | 한국전자통신연구원 | Channel adaptive hierarchy broadcasting apparatus and method |
| CN104333767B (en) * | 2014-10-10 | 2019-07-02 | 厦门雅迅网络股份有限公司 | A kind of Vehicular video monitoring system multichannel priority control method and system |
-
2020
- 2020-11-11 CN CN202011252776.4A patent/CN112383383B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101438A (en) * | 2015-07-10 | 2015-11-25 | 努比亚技术有限公司 | Data allocation method and device for multiple data channels |
| CN109640013A (en) * | 2018-12-20 | 2019-04-16 | 苏州华兴源创科技股份有限公司 | A kind of time sequence calibration method and chip testing machine |
| CN110336650A (en) * | 2019-07-02 | 2019-10-15 | 苏州华兴源创科技股份有限公司 | A kind of Signalling exchange system and method |
| CN111711858A (en) * | 2020-06-08 | 2020-09-25 | 苏州华兴源创科技股份有限公司 | Data transmission method, device, integrated chip and video image processing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112383383A (en) | 2021-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112383383B (en) | Adaptive adjustment method for multichannel data transmission and data processing system | |
| US11404022B2 (en) | Video frame rate compensation through adjustment of vertical blanking | |
| CN114257772B (en) | Data transmission adjustment method and device, computer equipment and readable storage medium | |
| CN112684994B (en) | Multichannel resource adjustment method and computer-readable storage medium | |
| CN113225599B (en) | Adjusting method and adjusting device for multi-channel data transmission | |
| WO2016107496A1 (en) | Video frame processing method, video processing chip, motion estimation and motion compensation chip | |
| US20220078372A1 (en) | Adaptive Method and System For Data Flow Control Based On Variable Frame Structure in Video Image Processing System | |
| CN109032541B (en) | Refresh rate adjusting method and assembly, display device and storage medium | |
| US9898993B2 (en) | Method for controlling message signal within timing controller integrated circuit, timing controller integrated circuit and display panel | |
| CN113794850B (en) | Timing correction method, apparatus, electronic device and readable storage medium | |
| CN114257847A (en) | Data correction method and device, computer equipment and computer readable storage medium | |
| CN115150286A (en) | Transmission node changing method, device, computer equipment and storage medium | |
| EP4239565A1 (en) | Method and device for tone mapping | |
| CN107197190B (en) | Method and device for generating video clock | |
| WO2015196614A1 (en) | White balance parameter adjustment assignment method, implementation method and implementation apparatus | |
| CN115297552A (en) | Configuration method and device of multichannel transmission node parameters and computer equipment | |
| CN111711858B (en) | Data transmission method, device, integrated chip and video image processing system | |
| CN105554587B (en) | A kind of display control method, device and display device | |
| CN112188137B (en) | Method for converting high frame frequency progressive image to standard definition PAL interlaced image based on FPGA | |
| CN113535631B (en) | Data distribution method, device, integrated chip and video image processing system | |
| JP6602977B2 (en) | Transmission device, transmission method, control program, and recording medium | |
| CN105472467A (en) | Interface display method and system | |
| US20110261070A1 (en) | Method and system for reducing remote display latency | |
| CN118283305A (en) | Display adjustment method, device, computer equipment and storage medium | |
| CN115442640A (en) | Video data transmission method, device and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |