CN115037965A

CN115037965A - Multi-channel data transmission method and device based on occupation coordination mechanism

Info

Publication number: CN115037965A
Application number: CN202210655307.XA
Authority: CN
Inventors: 魏巍; 殷建东
Original assignee: Suzhou HYC Technology Co Ltd
Current assignee: Suzhou HYC Technology Co Ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-09
Anticipated expiration: 2042-06-10
Also published as: CN115037965B

Abstract

The disclosure relates to a multichannel data transmission method and device based on an occupation coordination mechanism, wherein the method comprises the following steps: allocating occupied coordination pixel data resources in a preset frame structure to a first receiving end according to the performance parameters of the first receiving end connected with a transmission end; if the coordination pixel data resources are not normally allocated and occupied according to the mapping fields, allocating the resources which are the same as the coordination pixel data resources to a receiving end with the same performance parameters as the first receiving end, and transmitting the pixel data to the receiving end with the same performance parameters as the first receiving end; and under the condition that the allocated resources cannot meet the pixel data transmitted by the second receiving end, enabling the occupation coordination data in the frame structure, allocating occupation coordination data and occupation coordination pixel data resources for the second receiving end, and performing pixel data transmission on the second receiving end by combining the occupation coordination data and the occupation coordination pixel data resources. By adopting the method, the effective load of the video transmission link can be improved.

Description

Multi-channel data transmission method and device based on occupation coordination mechanism

Technical Field

The present disclosure relates to the field of data transmission technologies, and in particular, to a method and an apparatus for multi-channel data transmission based on an occupancy coordination mechanism.

Background

Currently, Video image systems, especially Video image processing systems with DisplayPort (DP, digital Video Interface standard), MIPI (Mobile Industry Processor Interface standard), HDMI (High Definition Multimedia Interface, High Definition Multimedia Interface standard) of VESA (Video Electronics Standards Association), so as to drive and Display the Display panel and the terminal such as Liquid Crystal Display (LCD), Organic Light-Emitting Diode (OLED), when supporting multi-channel display, when the link in the multi-channel video data transmission topology has a large number of nodes and/or video terminals with different capabilities, the video source transmits video data, the transmission of a large number of different capabilities of video data may need to be considered, which when transmitted in a time-shared manner, significantly reduces the payload of the video transmission link.

Disclosure of Invention

In view of the above, it is necessary to provide a multi-channel data transmission method and apparatus based on an occupation coordination mechanism, which can improve the transmission state of the payload of the video transmission link when performing time-sharing transmission.

In a first aspect, the present disclosure provides a multi-channel data transmission method based on an occupancy coordination mechanism. The method is applied to a video image processing system, wherein a transmission end in the video image processing system is used for transmitting pixel data to a plurality of receiving ends, and the method comprises the following steps:

allocating occupied coordination pixel data resources in a preset frame structure to a first receiving end according to the performance parameters of the first receiving end connected with the transmission end;

receiving a mapping field fed back by the first receiving end, if it is determined that the coordinated pixel data occupation resource is not normally allocated according to the mapping field, allocating a resource, which is the same as the coordinated pixel data occupation resource, to the receiving end with the same performance parameter as the first receiving end, and transmitting the pixel data to the receiving end with the same performance parameter as the first receiving end;

and under the condition that the distributed resources can not meet the pixel data transmitted by a second receiving end, enabling the occupation coordination data in the frame structure, distributing the occupation coordination data and the occupation coordination pixel data resources for the second receiving end, and transmitting the pixel data to the second receiving end through the joint of the occupation coordination data and the occupation coordination pixel data resources.

In one embodiment, the preset frame structure includes: virtual video time slots, filling video time slots and occupying coordinated pixel data resources;

the virtual video slot includes: the method comprises the steps of occupying a coordination zone bit, a resource occupation table, a first protection time slot and a partition virtual video time slot;

the occupation coordination flag bit is used for indicating whether a preset frame structure is used or not;

the resource occupation table is used for identifying occupation coordination pixel data resources and/or occupation coordination data used by the receiving end when the pixel data is transmitted under the condition of using a preset frame structure, and indicating the receiving end to form video data according to a corresponding resource mapping table, the occupation coordination pixel data resources and/or the occupation coordination data;

the split virtual video time slot is used for filling dummy data;

the first protection time slot is used for distinguishing the resource occupation table and the partition virtual video time slot;

the occupation coordinating pixel data resources are used for arranging and combining the pixel data according to the mode in the resource occupation table;

the filling the video slots comprises: occupying coordination data, a second protection time slot and dividing and filling a video time slot;

the occupation coordination data is used for transmitting the pixel data with the occupation coordination pixel data resources in a preset use mode;

the partitioned filling video time slot is used for filling when data is insufficient;

the second guard time slot is used for distinguishing the occupation coordination data from the segmentation filling video time slot.

In one embodiment, in a case where all of the virtual video timeslots are occupied as the occupation coordination flag bit and the resource occupation table, the first protection timeslot is zero; and under the condition that all the filling video time slots are occupied as the occupation coordination data, the second protection time slot is zero.

In one embodiment, the transmitting the pixel data to the second receiving end by using the occupation coordinating data and the occupation coordinating pixel data resource, includes:

combining the occupation coordination data and the occupation coordination pixel data resources to jointly complete the transmission of the pixel data according to a combined use mode in a preset use mode, wherein the preset use mode at least comprises the following steps: a single use mode, a joint use mode and a use mode according to transmission types, wherein the transmission types at least comprise: normal transmission, retransmission, error correction transmission.

In one embodiment, the method further comprises: and under the condition that the transmission type is error correction transmission, transmitting error correction pixel data during error correction transmission on resources occupied by an error correction receiving end, or transmitting the error correction pixel data through the occupied coordination data and/or the occupied coordination pixel data, wherein the error correction receiving end is a receiving end for transmitting pixel data identical to the error correction pixel data.

In one embodiment, the method further comprises: under the condition that the transmission type is retransmission, determining pixel data to be retransmitted according to retransmission information, and determining occupied resources of the pixel data to be retransmitted in a third receiving terminal, wherein the third receiving terminal comprises a receiving terminal with performance parameters larger than or equal to that of the receiving terminal to be retransmitted;

and adjusting the resource occupation table according to the pixel data to be retransmitted and the occupied resources of the pixel data to be retransmitted in the third receiving terminal, wherein the adjusted resource occupation table is used for indicating the receiving terminal to be retransmitted to retransmit the pixel data in a predetermined retransmission region.

In one embodiment, the method further comprises: and in the case that the transmission of the pixel data of the second receiving end cannot be completed by combining the occupation coordinating data and the occupation coordinating pixel data resources, transmitting the pixel data by any one of the following modes:

determining a master receiving end, creating a resource occupation table of a slave receiving end through the master receiving end, and transmitting the pixel data to the slave receiving end, wherein the slave receiving end comprises a receiving end which is connected with the master receiving end and is not allocated with resources, and the resource occupation table of the slave receiving end is used for indicating the slave receiving end to acquire the pixel data;

or, displaying the video data cached by the receiving end with the allocated resources, receiving the pixel data of the receiving end with the unallocated resources by the receiving end with the allocated resources, and readjusting the resource occupation table of the receiving end with the unallocated resources, wherein the resource occupation table of the receiving end with the unallocated resources is used for indicating the receiving end with the unallocated resources to acquire the pixel data;

or, determining the receiving ends of which the resources are not allocated, wherein the receiving ends of which the resources are not allocated comprise a fourth receiving end and a fifth receiving end;

closing the fourth receiving end, and re-determining a resource occupation table of the fifth receiving end, where the resource occupation table of the fifth receiving end is used for indicating the fifth receiving end to acquire the pixel data;

and after the fifth receiving end finishes acquiring the pixel data, accessing the fourth receiving end to a video transmission link, and determining a resource occupation table of the fourth receiving end, wherein the resource occupation table of the fourth receiving end is used for indicating the fourth receiving end to acquire the pixel data.

In a second aspect, the present disclosure further provides a multi-channel data transmission method based on an occupation coordination mechanism, which is applied to a receiving end in a video image processing system, and the method includes:

under the condition that the occupation coordination pixel data resources in a preset frame structure do not meet the requirement of the pixel data to be transmitted;

feeding back first information of the mapping field to a transmission end, wherein the first information represents that the transmission end does not normally distribute the occupied coordinated pixel data resources;

under the condition that the occupation coordination pixel data resources in a preset frame structure meet the requirement of pixel data to be transmitted, video data are formed and displayed through the pixel data;

and feeding back second information of the mapping field to the transmission end, wherein the second information represents that the transmission end normally allocates the occupied coordinated pixel data resource.

In one embodiment, after the first information of the feedback mapping field is transmitted to a transmission end, the method further includes:

determining the occupation coordination pixel data resource and occupation coordination data used when receiving pixel data according to a resource occupation table in a preset frame structure;

and acquiring pixel data according to the resource mapping table and the used occupied coordination pixel data resources and occupied coordination data to form and display video data.

In one embodiment, the composing and displaying of the video data by the pixel data includes:

determining the occupation coordination pixel data resource used when receiving the pixel data, wherein the occupation coordination pixel data resource is distributed by a transmission terminal according to the performance parameter;

and acquiring pixel data according to the resource mapping table and the used occupied coordination pixel data resource, and forming and displaying video data.

In a third aspect, the present disclosure further provides a multi-channel data transmission apparatus based on an occupation coordination mechanism. The device is applied to a video image processing system, wherein a transmission end in the video image processing system is used for transmitting pixel data to a plurality of receiving ends, and the device comprises:

the resource allocation module is used for allocating occupied coordination pixel data resources in a preset frame structure to a first receiving end according to the performance parameters of the first receiving end connected with the transmission end;

the distribution adjusting module is used for receiving the mapping field fed back by the first receiving terminal, determining that the coordination pixel data occupation resource is not normally distributed according to the mapping field, distributing the coordination pixel data occupation resource to the receiving terminal with the same performance parameter as the first receiving terminal, and transmitting the pixel data to the receiving terminal with the same performance parameter as the first receiving terminal;

and the joint distribution module is used for starting the occupation coordination data in the frame structure under the condition that the distributed resources can not meet the pixel data received by the second receiving end, distributing the occupation coordination data and the occupation coordination pixel data resources for the second receiving end, and carrying out the pixel data transmission on the second receiving end through the joint of the occupation coordination data and the occupation coordination pixel data resources.

In a fourth aspect, the present disclosure further provides a multi-channel data transmission apparatus based on an occupation coordination mechanism, which is applied to a receiving end in a video image processing system, and the apparatus includes:

the first feedback module is used for feeding back first information of a mapping field under the condition that occupied coordinated pixel data resources in a preset frame structure do not meet the requirement of pixel data to be transmitted, wherein the first information represents that a transmission end does not normally distribute the occupied coordinated pixel data resources;

the display module is used for forming and displaying video data through pixel data under the condition that the occupation coordination pixel data resources in a preset frame structure meet the requirement of the pixel data to be transmitted;

and the second feedback module is used for feeding back second information of the mapping field to the transmission end, wherein the second information represents that the transmission end normally allocates the data resources of the occupied coordinated pixels.

In a fifth aspect, the present disclosure also provides a computer device. The computer device comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the multichannel data transmission method based on the occupation coordination mechanism when executing the computer program.

In a sixth aspect, the present disclosure also provides a computer-readable storage medium. The computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the multi-channel data transmission method based on the occupancy coordination mechanism.

In a seventh aspect, the present disclosure also provides a computer program product. The computer program product comprises a computer program, and the computer program realizes the steps of the multi-channel data transmission method based on the occupation coordination mechanism when being executed by a processor.

In the foregoing embodiments, when the resource of the first receiving end allocated by the transmitting end is insufficient, the receiving end having the same performance parameter as the first receiving end may be allocated the resource of the occupied coordinated pixel data according to the mapping field fed back by the first receiving end, and the receiving end may transmit the pixel data, so that the pixel data may be transmitted without adding other time slots. And if the allocated resources cannot meet the pixel data transmitted by the second receiving end, the pixel data can be jointly transmitted by jointly occupying coordinated data and coordinated pixel data resources, and when different pixel data are transmitted, the transmission is performed in different modes (including independent transmission of occupied coordinated pixel data resources, joint transmission of occupied coordinated data and coordinated pixel data resources), and the pixel transmission of the receiving end can be completed only by occupying coordinated data and coordinated pixel data resources through occupying a small number of time slots, so that the effective load of the video transmission link is improved.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a video image processing system in one embodiment;

FIG. 2 is a flow chart illustrating a multi-channel data transmission method based on an occupancy coordination mechanism according to an embodiment;

FIG. 3 is a diagram illustrating a preset frame structure in one embodiment;

FIG. 4 is a diagram of a standard frame structure in one embodiment;

FIG. 5 is a flowchart illustrating a multi-channel data transmission method based on an occupancy coordination mechanism according to another embodiment;

FIG. 6 is a flowchart illustrating a step S504 in another embodiment;

FIG. 7 is a flowchart illustrating the step S504 according to another embodiment;

FIG. 8 is a block diagram illustrating the structure of a multi-channel data transmission apparatus based on an occupation coordination mechanism in one embodiment;

FIG. 9 is a block diagram schematically illustrating the structure of a multi-channel data transmission apparatus based on an occupation coordination mechanism in another embodiment;

FIG. 10 is a diagram showing an internal configuration of a computer device according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.

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

In this document, the term "and/or" is only one kind of association relationship describing the associated object, meaning that three kinds of relationships may exist. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

As described in the background art, when pixel data with different performance parameters are transmitted in a time-sharing manner, a large amount of signaling is required to be transmitted between a video source (transmission end) and a node and/or a video terminal (receiving end) in an interactive manner, so as to confirm the capability of each node and/or video terminal, thereby increasing the overhead of the whole system. Especially when some nodes and/or video terminals are interrupted or erroneously transmitted for system reasons, a further large amount of resources/time slots may be occupied.

Therefore, to solve the above problem, embodiments of the present disclosure provide a method and an apparatus for multi-channel data transmission based on an occupancy coordination mechanism.

First, a video image processing system according to the following embodiments of the present disclosure is described, as shown in fig. 1, including: the device comprises an embedded control module, an FPGA module, an external storage module, a quick storage module, a peripheral module, a video interface physical layer implementation module and a video transmission link.

The embedded control module can use any embedded chip and system, and is mainly responsible for initiating signaling interaction, such as reading/writing a register, enabling/closing a video display module, peripheral control, parameter setting of the video display module and the like. The FPGA module is mainly responsible for the implementation parts which need a large amount of data processing and low round-trip delay (latency) such as storage control, peripheral control, video interface IP core implementation and the like. The external storage module is mainly responsible for storing original data streams of video images needing to be displayed in the video image processing system, and the part is applied to storage media such as NandFlash, SSD and the like, but is not limited to the storage media. The fast storage module is used in an implementation process requiring a large amount of data processing and low round-trip delay (latency) inside an FPGA module, and in order to reduce delay and delay storage, the module applies a fast and low-delay physical device, such as, but not limited to, DDR 3. 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. The video interface physical layer implementation module is mainly responsible for the physical layer implementation required for driving the display module, such as, but not limited to, TX/RX (Transmitter/Receiver) -PHY of DisplayPort, DPHY of MIPI, and the like.

Furthermore, the FPGA module includes a bus interaction module, an MCU (micro controller Unit, micro control module) 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 timing 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. And 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 to this. The internal storage controller module is mainly responsible for controlling the fast storage 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 the peripheral modules, including enabling/shutting down of the peripheral, controlling the working mode, and the like, but not limited thereto. 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 the data input from the video pattern processing module is transmitted to the video interface IP core module, but is not limited thereto.

The video transmission link includes a transmission end (video transmission source), a reception end (embedded physical repeater, cable with source ID, detachable physical repeater, video reception end, etc.), but is not limited thereto. The receiving end in this embodiment may include: a node and/or a video terminal.

In an embodiment, as shown in fig. 2, a multi-channel data transmission method based on an occupancy coordination mechanism is provided, which may be applied to the video image processing system shown in fig. 1 provided in this embodiment, and may also be applied to other video image processing systems, where a transmission end in the video image processing system is used to transmit pixel data to a plurality of receiving ends. The application environment is exemplified by the transmission side of the video image processing system shown in fig. 1 in the present embodiment. The method comprises the following steps:

step 202, allocating the occupation coordination pixel data resource in the preset frame structure to the first receiving end according to the performance parameter of the first receiving end connected with the transmission end.

Wherein, the transmission end may generally include: a video transmission source or other receiving end. The first receiving end and the further receiving ends may typically be nodes and/or video terminals in the video transmission link. Performance parameters may typically include, for example, frame rate, refresh rate, resolution, etc. The pre-set frame structure may typically be a frame structure other than a standard frame structure, which may generally be applicable to the manner in which pixel data is transmitted in the present application. The occupation coordinating pixel data resources may generally transmit pixel data in the manner specified in this application.

Specifically, the transmitting end may determine a performance parameter of a first receiving end connected to the transmitting end, and allocate resources used in pixel data transmission to the first receiving end for the coordinated pixel data resources occupied in the preset frame structure according to the performance parameter.

Step 204, receiving the mapping field fed back by the first receiving end, if it is determined that the coordinated pixel data occupation resource is not normally allocated according to the mapping field, allocating the coordinated pixel data occupation resource to the receiving end with the same performance parameter as the first receiving end, and transmitting the pixel data to the receiving end with the same performance parameter as the first receiving end.

The mapping field may be a field fed back to the transmitting end by the receiving end, and the transmitting end may determine whether the resource is normally allocated after receiving the mapping field.

Specifically, after allocating the resource to the first receiving end, the first receiving end needs to determine whether the resource meets the requirement of the pixel data that needs to be acquired or transmitted when acquiring or transmitting the pixel data. And if so, the first receiving end feeds back a mapping field, wherein the mapping field comprises first information. If not, the first receiving end also feeds back a mapping field, and the mapping field comprises second information. The transmission end can receive the mapping field fed back by the first receiving end and determine whether the coordinated pixel data resources are normally allocated and occupied according to the information contained in the mapping field. And if the mapping field contains the second information, determining that the coordination pixel data resources are not normally allocated and occupied, and the coordination pixel data resources are not met with the requirements of the pixel data needing to be acquired or transmitted. The reason for this may be that the current first receiving end occupies too much resources, and thus cannot meet the requirements of the current first receiving end. At this time, a receiving end with the same performance parameter as the first receiving end can be searched, the receiving end is allocated with the resource which is the same as the resource occupying the coordinated pixel data, the pixel data is transmitted to the receiving end, and the corresponding pixel data is transmitted or obtained through the receiving end and displayed. Which may be understood as occupying that receiver to complete the pixel data that the first receiver needs to process.

And step 206, under the condition that the allocated resources cannot meet the pixel data transmitted by the second receiving end, enabling the occupation coordination data in the frame structure, allocating the occupation coordination data and the occupation coordination pixel data resources to the second receiving end, and performing the pixel data transmission on the second receiving end through the combination of the occupation coordination data and the occupation coordination pixel data resources.

The second receiving end may generally be a receiving end that cannot normally acquire pixel data in the video transmission link, and may generally be a receiving end that does not normally allocate resources. The receiving terminals that do not normally allocate resources may include the first receiving terminal, the receiving terminal having the same performance parameters as the first receiving terminal, and other receiving terminals.

Specifically, in the case that neither the allocated occupied coordinated pixel resources nor the resources that are the same as the occupied coordinated pixel data resources can satisfy the pixel data transmitted by one or more receiving terminals, it represents that the allocated occupied coordinated pixel data resources and the conventional resources in the receiving terminals cannot satisfy the transmission, and here, the occupied coordinated data in the preset frame structure can be enabled. The occupancy coordination data functions the same as the occupancy coordination pixel data. And allocating occupation coordination data and occupation coordination pixel data resources to the second receiving end, and carrying out pixel data transmission on the second receiving end through the combination of the occupation coordination data and the occupation coordination pixel data resources.

It is understood that the transmission in this embodiment may include: the receiving end acquires pixel data and the receiving end sends the pixel data. The occupancy coordination mechanism in this case may be a way of transferring pixel data using the occupancy coordination pixel data resources and/or the occupancy coordination data.

In the above multichannel data transmission method based on the occupation coordination mechanism, under the condition that the resources of the first receiving end allocated by the transmission end are insufficient, the resources same as the occupation coordination pixel data resources can be allocated for the receiving end with the same performance parameters as the first receiving end according to the mapping field fed back by the first receiving end, and the pixel data can be transmitted through the receiving end without increasing other time slots. And if the allocated resources cannot meet the pixel data transmitted by the second receiving end, the pixel data can be jointly transmitted by occupying the coordination data and the coordination pixel data resources, when different pixel data are transmitted, the pixel data can be transmitted in different modes (including independent transmission by using the coordination pixel data resources, joint transmission by occupying the coordination data and the coordination pixel data resources), and the pixel transmission of the receiving end can be completed only by occupying the coordination data and the coordination pixel data resources by occupying a small number of time slots, so that the effective load of the video transmission link is improved.

As described above, the preset frame structure is introduced in the present application, which uses the preset frame structure for transmitting pixel data, and the preset frame structure will be described in detail below.

In one embodiment, as shown in fig. 3, the preset frame structure includes: virtual video time slots, filling video time slots and occupying coordinated pixel data resources;

the virtual video slot includes: occupying a coordination flag bit, a resource occupation table, a first protection time slot and a partition virtual video time slot;

the split virtual video time slot is used for filling pseudo data;

the occupation coordination data is used for transmitting the pixel data with the occupation coordination pixel data resources through a preset strategy;

the second guard time slot is used for distinguishing the occupation coordination data from the segmentation filling video time slot;

the segmentation fills the video slots for filling when there is insufficient data.

Specifically, before introducing the preset frame structure of the present application, a standard frame structure is first described, and as shown in fig. 4, a schematic diagram of a standard frame structure is shown, where BS (Blanking Start), VB-ID (Vertical Blanking Identifier), Mvid (timer value of Video data), Naud (timer value of audio data), Dummy Video (for Dummy data padding), BE (Blanking End), pixel data (for transmission of Video data), FS (Fill Start, padding Video (for padding data when there is insufficient data), and FE (Fill End).

Referring to fig. 3, the preset frame structure in the present application may be generally obtained by splitting the Dummy Video in the standard frame structure into four parts and splitting the Fill Video into three parts, the virtual Video timeslot in the preset frame structure may be generally the Dummy Video in the standard frame structure, and the split four parts may be respectively: the method comprises the steps of occupying a coordination zone bit, a resource occupation table, a first protection time slot and a partition virtual video time slot. The stuffing Video slots in the pre-set frame structure may typically be Fill Video in a standard frame structure. The three split parts may include: and occupying the coordination data, the second protection time slot and the partition filling video time slot.

The occupation coordination flag bit is used to indicate whether a preset frame structure is used, and in general, if the scheme is used, the occupation coordination flag bit will be in an enabled state. If the scheme is not used, the occupation coordination flag bit is forbidden, and new resources in other preset frame structures are forbidden (including a resource occupation table, occupation coordination pixel data resources and the like); if the flag bit is enabled, the new resources in the rest preset frame structures are all enabled; the use of the coordination flag bit occupied in the Dummy Video resource (time slot) introduces the use condition of the scheme under the condition of not influencing the standard frame structure resource (time slot).

And the resource occupation table is used for identifying resources used by the receiving end for transmitting the pixel data in the video transmission link under the condition of using the preset frame structure of the scheme, so that the receiving end can select the specified pixel data to form the video data according to the resources used by the corresponding resource mapping table. The resources may include: one or more of own regular resources, occupancy coordination pixel data resources, and occupancy coordination data. Different resources may be used according to different situations. The resource mapping table may typically be an indication of the resources used by the receiving end. For example, node 1 uses

resources

1, 2, and 6; video terminal 2 uses resources 1, 3, and 6; when a node and/or a video terminal acquires pixel data for framing, the pixel data must be acquired according to the resources (time slots) indicated in the resource mapping table, and then the video data can be correctly composed and displayed.

The virtual Video slots, which correspond to the Dummy Video resources in the standard frame structure in the usual case, and their corresponding functions, are split for Dummy data padding, in order to be compatible with the standard frame structure. The virtual Video can be divided by removing the remaining part of the occupation coordination flag bit, the resource occupation coordination table and the first protection time slot from the Dummy Video in the original standard frame structure.

The first guard slot is typically used to distinguish between the resource occupancy table and the split virtual video slot. The first guard slot may be zero if all of the virtual video slots are occupied as occupied coordination flag bits and occupied resource tables. To further raise the payload.

The occupation of coordinated pixel data resources may be derived from the transformation of pixel data in a standard frame structure. The pixel data in the occupancy-coordinated pixel data resources are arranged and composed in a resource occupancy table manner (as the role of the resource occupancy table mentioned above). If the frame structure preset in the scheme is not used, the occupied and coordinated pixel data resources are restored to the pixel data resources, the pixel data arrangement and composition at the moment are arranged according to the mode of the standard frame structure, and the compatibility with the standard frame structure is kept under the condition that the occupation of the pixel data resources is basically kept unchanged.

And the occupation coordination data is used for transmitting the pixel data with the occupation coordination pixel data resources in a preset use mode, and can comprise normal transmission, retransmission, error correction transmission and the like. The size of the occupied coordinated data resources is variable, being at minimum zero (i.e., unused) and at maximum the Fill Video resources are all occupied.

The split filler Video slots, which may correspond to the Fill Video resources in the standard frame structure and their corresponding functions in the normal case, are used for filling when there is insufficient data, in order to be compatible with the standard frame structure. The split filler Video may be generally composed of the remaining part of the second guard time slot occupying the coordination data removed from the Fill Video in the original standard frame structure.

The second guard time slot is used for distinguishing the occupation coordination data from the segmentation filling video time slot. And under the condition that all the filling video time slots are occupied as the occupation coordination data, the second protection time slot is zero so as to further promote the effective load.

In this embodiment, each newly added time slot in the preset frame structure is added in the fixed time slot in the original standard frame structure and can be kept compatible with the standard frame, so as to avoid more switching requests; i.e. the switching between the two frame structures does not require excessive signalling interaction. And the time slots in the preset frame structure can be adjusted, such as (resource occupation table, first protection time slot, occupation coordination pixel data resource, etc.), so that the effective load can be improved.

In one embodiment, the transmitting the pixel data to the second receiving end by the occupation coordinating data and occupation coordinating pixel data resource combination includes:

In particular, the preset usage pattern may generally be a pattern of usage occupancy coordination data and/or occupancy coordination pixel data resources. The skilled person can select different usage modes according to different situations. In this embodiment, the pixel data transmitted by the second receiver cannot be satisfied because of the occupation of the coordinated pixel data resources alone. Therefore, the pixel data transmitted by the second receiving end can be met by occupying the coordination data and occupying the coordination pixel data resources together. And the usage modes also include a separate usage mode, a joint usage mode and a usage mode according to transmission types. The single use approach may generally be the aforementioned approach of using the dedicated coordination pixel data resource to transmit pixel data. The joint use mode can be a mode of jointly transmitting the pixel data by occupying the coordination data and occupying coordination pixel data resources. The usage pattern according to the transmission type is usually based on different transmission types, such as normal transmission, retransmission, error correction transmission. A manner of occupying the coordination data and/or occupying the coordination pixel data resources is used. Specific modes of use can be found in the examples below.

In this embodiment, the transmission of the pixel data is completed by combining the occupation coordinating data and the occupation coordinating pixel data resources in a combined use mode, so that the transmission of the pixel data of the second receiving end can be ensured. And the pixel data corresponding to different performance parameters can be transmitted to different receiving ends needing to be transmitted according to the use mode of the transmission type and the independent use mode without occupying other time slots, so that the effective load of the video transmission link can be improved.

In one embodiment, the method further comprises: when the transmission type is error correction, the error correction pixel data during error correction transmission is transmitted on the resource occupied by the error correction receiving end, or transmitted by the occupation coordination data and/or the occupation coordination pixel data,

wherein the error correction receiving side is a receiving side that transmits the same pixel data as the error correction pixel data. The error correction transmission may typically be a crc (cyclic Redundancy check) error; i.e. the transmitted pixel data or video data is not correct.

Specifically, in the case that the transmission type is error correction transmission, the transmission end of the video transmission source may allocate resources to the receiving end of the video transmission error to complete the error correction transmission of the video data. The time slots occupied for error correction transmission may be specified by the video transmission source. The error correction pixel data during error correction transmission can be transmitted on the resources occupied by the error correction receiving end. The error correction pixel data may also be transmitted via the occupancy coordination data and/or the occupancy coordination pixel data. If the error correction pixel data is too large and the occupation coordination pixel data cannot be satisfied, the transmission can be performed through the occupation coordination data and the occupation coordination pixel data.

In this embodiment, transmitting the error correction pixel data through the error correction receiving end is beneficial to saving resources (time slots), improving the payload, and further improving the throughput. The transmission is carried out by occupying the coordination data and/or the coordination pixel data, and under the condition of occupying a small amount of resources (time slots), the normal transmission of the pixel data of other receiving ends is not influenced while error correction transmission is completed.

In one embodiment, the method further comprises: and multiplexing parameters for the transmission end of the video transmission source according to the performance parameters of each receiving end. If the receiving ends with the same performance parameters use the same resources, and the receiving ends with lower performance parameters use the appointed parts in the resources of the receiving ends with higher performance parameters to form video data; and for the receiving end with higher performance parameters, multiplexing additional resources by using the resources occupied by the receiving end with the performance parameters similar to the performance parameters to form the video data.

In this embodiment, resources can be saved and the payload can be promoted by a parameter multiplexing method.

In one embodiment, when the transmission type is retransmission, determining pixel data to be retransmitted according to retransmission information, and determining occupied resources of the pixel data to be retransmitted in a third receiving end, where the third receiving end includes a receiving end greater than or equal to a performance parameter of the receiving end to be retransmitted;

The third receiving end may generally be one or more receiving ends that occupy their resources for retransmitting pixel data. The predetermined retransmission region may typically be a resource of the third receiving end that is normally occupied as specified in the adjusted resource occupancy table. The retransmission information typically includes the resources that need to be retransmitted.

Specifically, in the case where retransmission is required, the pixel data that needs to be retransmitted is determined from the retransmission information. And determining a receiving end which accords with the pixel data needing to be retransmitted, wherein the receiving end is a third receiving end. The performance parameter of the third receiving end is usually greater than or equal to the performance parameter of the receiving end to be retransmitted, so that the pixel data can be retransmitted by the resource of the third receiving end. And after the third receiving end is determined, determining the resources occupied by the pixel data to be retransmitted in the third receiving end. And adjusting the resource occupation table according to the occupied resources, and setting a retransmission area in the resource occupation table. The receiving end to be retransmitted can retransmit the pixel data to be retransmitted through the retransmission data.

In other embodiments of this embodiment, when multiple receiving ends jointly occupy the same resource, the video sending source needs to identify the joint occupation, and when the next receiving end has an error, there are two strategies to recover the data, one is to directly send a request to the previous receiving end and resend the data on the occupied resource that has been allocated; the other is to send a request for recovering video data to a video sending source, where the video source may retransmit the data using the originally allocated resource if the originally allocated resource is not reused according to the resource occupation condition of the current multi-channel video data transmission link, and in order to improve throughput, the video source may notify a receiving end using the resource to complete display by temporarily using locally stored frame data, or may allocate an additional resource (timeslot) for retransmitting the data, which is specially used for retransmission of the resource.

In this embodiment, the pixel data is retransmitted by occupying the resource of the third receiving end without occupying additional resources, so that resources are saved, the payload is increased, and the throughput is increased.

In one embodiment, in case that the transmission of the pixel data of the second receiving end cannot be completed by combining the occupation coordinating data and the occupation coordinating pixel data resources, the pixel data is transmitted by any one of the following methods:

the number of the main receiving ends can be one or more than one receiving ends which can be designated by a video sending source in a general case, and a person skilled in the art can determine the number of the main receiving ends according to the topological structure of an actual transmission link, and the main receiving ends have the capability of creating a resource occupation table. The slave receiver may typically be a subordinate receiver connected to the master receiver and which typically does not allocate resources. The receiving end is herein understood to be a node and/or a video terminal and does not typically include a video transmitting source.

Specifically, the video transmission source may set a designated node and/or video terminal as the master sink. The video transmission source deletes the resources allocated in the master receiver and the slave receivers, which may include: an occupancy coordination pixel data resource and a resource that is the same as the occupancy coordination pixel data resource. The main receiving end receives pixel data transmitted by a video source, and the pixel data is composed of the video data and displayed. In general, the video source does not need to allocate resources to the primary receiver, and the transmitted pixel data is the pixel data that conforms to the primary receiver. If the resources allocated to the main receiving end do not conform to the pixel data transmitted by the main receiving end, the main receiving end may perform processing in the manner mentioned in the above embodiments, which is not described herein again. The master receiver may mark the slave receivers for unallocated resources. And constructing a new resource occupation table for the slave receiving end through the master receiving end. The master receiver allocates the resources of the slave receiver using its own resources. And the slave receiving end acquires the pixel data transmitted by the main receiving end according to the resource occupation table created by the main receiving end, and forms and displays the video data.

In some specific embodiments, the specific operations of the master receiver and the slave receiver may refer to the first policy table in table 1.

TABLE 1 first policy Table

Or displaying the video data cached by the receiving end with the allocated resources, receiving the pixel data of the receiving end with the unallocated resources by the receiving end with the allocated resources, and readjusting the resource occupation table of the receiving end with the unallocated resources, wherein the resource occupation table of the receiving end with the unallocated resources is used for indicating the receiving end with the unallocated resources to acquire the pixel data.

Specifically, the receiving end with the allocated resources is determined among all the receiving ends, and the receiving end with the allocated resources is displayed through the video cached by the receiving end, and at this time, the receiving end with the allocated resources can be used for receiving pixel data, and the pixel data can be of the receiving end with the unallocated resources transmitted by the transmitting end. And the receiving end which does not finish the resource allocation readjusts the corresponding resource occupation table. The resource occupation table is used for indicating a receiving end which is not allocated with resources to acquire the pixel data, and forming and displaying video data.

In some specific embodiments, the specific operations of the receiver with completed resource allocation and the receiver without completed resource allocation can be referred to the table 2 alternative resource buffer table.

Table 2 alternate resource cache table

closing the fourth receiving end, and re-determining the resource occupation table of the fifth receiving end, wherein the resource occupation table of the fifth receiving end is used for indicating the fifth receiving end to acquire the pixel data;

The fourth receiving end and the fifth receiving end may be generally determined by those skilled in the art according to actual situations in the receiving ends where resource allocation is not completed. In this embodiment only a distinction is made. The fourth receiver may typically be a large share of occupied resources.

Specifically, the video transmission source determines a receiving end of the receiving ends where the resource allocation is not completed. And determining a part of the receiving ends of which the resources are not completely allocated as fourth receiving ends, and determining the other part of the receiving ends of which the resources are not completely allocated as fifth receiving ends. The fourth receiver is shut down and/or deleted in the video transmission link. And the video source re-determines the resource occupation table of the fifth receiving end. And the fifth receiving terminal acquires the pixel data according to the corresponding resource occupation table to form and display the video data. After the fifth receiving end displays the video data, if the fourth receiving end is deleted in the video transmission link, no operation is performed. And if the fourth receiving end is closed, the fourth receiving end is accessed into the video transmission link again. And determining a resource occupation table corresponding to the fourth receiving end. And the fourth receiving terminal acquires the pixel data according to the corresponding resource occupation table to form and display the video data.

In some specific embodiments, the specific operations of the fourth receiving end and the fifth receiving end may delete the close table with reference to table 3.

Table 3 delete close table

The embodiment of the present disclosure further provides another multichannel data transmission method based on an occupation coordination mechanism, as shown in fig. 5, which is applied to a receiving end in a video image processing system, and the method includes:

s502, under the condition that the occupation coordination pixel data resource in the preset frame structure does not meet the requirement of the pixel data to be transmitted.

S504, feeding back first information of the mapping field to the transmission end, wherein the first information represents that the transmission end does not normally allocate the occupied coordinated pixel data resources.

S506, under the condition that the occupation coordination pixel data resources in the preset frame structure meet the requirement of the pixel data to be transmitted, forming video data through the pixel data and displaying the video data.

And S508, feeding back second information of the mapping field to the transmission end, wherein the second information represents that the transmission end normally allocates the occupied coordinated pixel data resources.

Specifically, the current receiving end determines whether the occupied coordinated pixel data resources in the preset frame structure allocated by the transmitting end satisfy the pixel data to be transmitted, and if the occupied coordinated pixel data resources in the preset frame structure do not satisfy the requirement of the pixel data to be transmitted. The current receiving end feeds back the first information of the mapping field to the transmitting end. The transmitting end is processed in the manner mentioned in the above embodiments. And under the condition that the occupation coordination pixel data resources in the preset frame structure meet the requirement of the pixel data to be transmitted, the current receiving end is proved to be capable of normally transmitting the pixel data, video data is formed and displayed through the pixel data, and second information of the mapping field is fed back to the transmitting end.

In this embodiment, the current receiving end may feed back the mapping field carrying different information to the transmitting end according to different conditions, so that the transmitting end determines the resource allocation condition of the current receiving end according to different information. And can respond in time.

In one embodiment, as shown in fig. 6, after the first information of the feedback mapping field is mapped to a transmission end, the method further includes:

s602, determining the occupation coordination pixel data resource and occupation coordination data used when receiving pixel data according to a resource occupation table in a preset frame structure;

s604, acquiring pixel data according to the resource mapping table and the used occupied coordination pixel data resources and occupied coordination data, and forming and displaying video data.

Specifically, after feeding back the first information of the mapping field to the transmission end, the transmission end may first perform processing according to the step 204, and then, in the case that the transmitted pixel data is not satisfied, the transmission end may perform processing according to the step 206. The current receiving end can determine the occupation coordination pixel data resource and the occupation coordination data used when receiving the pixel data according to a resource occupation table in a preset frame structure, acquire correct pixel data according to the resource mapping table of the current receiving end and the occupation coordination pixel data resource and the occupation coordination data used, and form and display the pixel data into video data.

In this embodiment, the current transmission node can only use the resource occupying the coordinated pixel data and the resource occupying the coordinated data to satisfy the requirement of the current transmission node on the resource occupying the pixel data, and can complete the transmission of the pixel data by occupying a small number of time slots, thereby improving the payload of the video transmission link.

In one embodiment, as shown in fig. 7, the composing and displaying the video data by the pixel data includes:

s702, determining the occupation coordination pixel data resource used when receiving pixel data, wherein the occupation coordination pixel data resource is distributed by a transmission terminal according to performance parameters;

s704, obtaining pixel data according to the resource mapping table and the used occupied coordination pixel data resources, and forming and displaying video data.

Specifically, the current receiving end determines the occupation coordination pixel data resource used when receiving the pixel data through a resource occupation table in a preset frame structure. Then the current receiving end can obtain correct pixel data according to the resource mapping table of the current receiving end and the used occupied coordination pixel data resource, and the correct pixel data are formed and displayed.

In this embodiment, when the occupation coordination pixel data resource allocated by the transmission end satisfies the pixel data transmitted by the current receiving end, the pixel data is transmitted only by occupying coordination pixel data, and the transmission of the pixel data can be completed by occupying a small number of time slots, thereby improving the payload of the video transmission link.

It is understood that, in the embodiments of the present disclosure, when a transmission end or a receiving end of a previous stage and a next stage transmits video data, a fixed round-trip delay is usually required for transferring resource occupation information between the two stages, and for preparing the next stage before receiving the data, including: acquisition of reception resources, regeneration of timing information, and execution of necessary physical processes, such as link training, turning on/off of a PHY layer, and the like.

It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.

Based on the same inventive concept, the embodiment of the present disclosure further provides an occupation coordination mechanism-based multi-channel data transmission apparatus for implementing the occupation coordination mechanism-based multi-channel data transmission method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so that the specific limitations in one or more embodiments of the multichannel data transmission device based on the occupation coordination mechanism provided below may refer to the limitations in the above description for the multichannel data transmission method based on the occupation coordination mechanism, and are not described herein again.

In one embodiment, as shown in fig. 8, there is provided a multi-channel data transmission apparatus 800 based on an occupancy coordination mechanism, applied to a video image processing system, in which a transmission end is used to transmit pixel data to a plurality of receiving ends, including: a resource allocation module 802, an allocation adjustment module 804, and a joint allocation module 806, wherein:

a resource allocation module 802, configured to allocate, according to a performance parameter of a first receiving end connected to the transmission end, an occupation coordination pixel data resource in a preset frame structure to the first receiving end;

an allocation adjusting module 804, configured to receive a mapping field fed back by the first receiving end, and determine that the coordinated pixel data resource is not allocated normally according to the mapping field, allocate a resource, which is the same as the coordinated pixel data resource, to the receiving end having the same performance parameter as the first receiving end, and transmit pixel data to the receiving end having the same performance parameter as the first receiving end;

a joint allocating module 806, configured to, when the allocated resource cannot meet the pixel data received by the second receiving end, enable the occupation coordination data in the frame structure, allocate the occupation coordination data and occupation coordination pixel data resources to the second receiving end, and perform, through the occupation coordination data and the occupation coordination pixel data resources, the transmission of the pixel data to the second receiving end in a joint manner.

In one embodiment of the apparatus, the preset frame structure comprises: virtual video time slots, filling video time slots and occupying coordinated pixel data resources;

the split virtual video time slot is used for filling pseudo data;

the occupation coordination data is used for transmitting the pixel data with the occupation coordination pixel data resources in a preset using mode;

In an embodiment of the apparatus, in a case where all of the virtual video timeslots are occupied as the occupation coordination flag bit and the resource occupation table, the first protection timeslot is zero; and under the condition that all the filling video time slots are occupied as the occupation coordination data, the second protection time slot is zero.

In an embodiment of the apparatus, the joint allocating module 806 is further configured to combine the occupation coordination data and the occupation coordination pixel data resource to complete transmission of the pixel data according to a joint usage manner in preset usage manners, where the preset usage manner at least includes: a single use mode, a joint use mode and a use mode according to transmission types, wherein the transmission types at least comprise: normal transmission, retransmission, error correction transmission.

In an embodiment of the apparatus, the apparatus further includes an error correction transmission module, configured to, when the transmission type is error correction transmission, place error correction pixel data during error correction transmission on a resource occupied by an error correction receiving end for transmission, or transmit the error correction pixel data through the occupation coordination data and/or the occupation coordination pixel data, where the error correction receiving end is a receiving end that transmits pixel data that is the same as the error correction pixel data.

In one embodiment of the apparatus, the apparatus further comprises: a retransmission module, configured to determine, according to retransmission information, to-be-retransmitted pixel data and determine occupied resources of the to-be-retransmitted pixel data in a third receiving end when the transmission type is retransmission, where the third receiving end includes a receiving end greater than or equal to a performance parameter of the to-be-retransmitted receiving end;

In one embodiment of the apparatus, the apparatus further comprises: under the condition that the transmission of the pixel data of the second receiving end cannot be completed by combining the occupation coordination data and the occupation coordination pixel data resources, transmitting the pixel data through any one of a master-slave transmission module, an alternate display module and a temporary closing module;

the master-slave transmission module is configured to determine a master receiving end, create a resource occupancy table of a slave receiving end through the master receiving end, and transmit the pixel data to the slave receiving end, where the slave receiving end includes a receiving end that is connected to the master receiving end and is not allocated with resources, and the resource occupancy table of the slave receiving end is used to instruct the slave receiving end to acquire the pixel data.

The alternate display module is configured to display the video data cached by the receiving end with the allocated resources, receive the pixel data of the receiving end with the unallocated resources by the receiving end with the allocated resources, and readjust the resource occupation table of the receiving end with the unallocated resources, where the resource occupation table of the receiving end with the unallocated resources is used to indicate the receiving end with the unallocated resources to obtain the pixel data.

The temporary closing module is used for determining the receiving ends of which the resources are not allocated, and the receiving ends of which the resources are not allocated comprise a fourth receiving end and a fifth receiving end;

All or part of each module in the multi-channel data transmission device based on the occupation coordination mechanism can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

The embodiment of the present disclosure further provides another multi-channel data transmission apparatus 900 based on an occupation coordination mechanism, as shown in fig. 9, which is applied to a receiving end, and the apparatus includes:

a first feedback module 902, configured to feed back first information of a mapping field when an occupied coordinated pixel data resource in a preset frame structure does not meet a requirement of pixel data to be transmitted, where the first information indicates that a transmission end does not normally allocate the occupied coordinated pixel data resource;

a display module 904, configured to compose and display video data from pixel data when occupation coordination pixel data resources in a preset frame structure meet a requirement of the pixel data to be transmitted;

a second feedback module 906, configured to feed back second information of the mapping field to the transmission end, where the second information indicates that the transmission end normally allocates the occupied coordinated pixel data resource.

In one embodiment of the apparatus, the apparatus further comprises: the comprehensive display module is used for determining the occupation coordination pixel data resources and the occupation coordination data used when the pixel data are received according to a resource occupation table in a preset frame structure;

and acquiring pixel data according to the resource mapping table and the used occupation coordination pixel data resources and occupation coordination data to form and display video data.

In one embodiment of the apparatus, the display module 904 comprises: a resource determining module and a pixel data acquiring module;

the used resource determining module is used for determining the occupied coordinated pixel data resources used when the pixel data are received, and the occupied coordinated pixel data resources are distributed by the transmission end according to the performance parameters;

and the pixel data acquisition module is used for acquiring pixel data according to the resource mapping table and the used occupation coordination pixel data resources, and forming and displaying video data.

In one embodiment, a computer device is provided, which may be a server, and the internal structure thereof may be as shown in fig. 10. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The database of the computer device is used for storing pixel data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a multi-channel data transmission method based on an occupancy coordination mechanism.

Those skilled in the art will appreciate that the architecture shown in fig. 10 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the above-described method embodiments when executing the computer program.

In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.

In an embodiment, a computer program product is provided, comprising a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.

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 hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, databases, or other media used in the embodiments provided by the present disclosure may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), Magnetic Random Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases involved in embodiments provided by the present disclosure may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments provided in this disclosure may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic, quantum computing based data processing logic, etc., without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as 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 disclosure, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present disclosure. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the disclosure, and these changes and modifications are all within the scope of the disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims

1. A multi-channel data transmission method based on an occupancy coordination mechanism is applied to a video image processing system, wherein a transmission end in the video image processing system is used for transmitting pixel data to a plurality of receiving ends, and the method comprises the following steps:

allocating occupation coordination pixel data resources in a preset frame structure to a first receiving end according to the performance parameters of the first receiving end connected with the transmission end;

2. The method of claim 1, wherein the pre-arranged frame structure comprises: virtual video time slots, filling video time slots and occupying coordinated pixel data resources;

the split virtual video time slot is used for filling dummy data;

the first protection time slot is used for distinguishing the resource occupation table and the segmentation virtual video time slot;

3. The method of claim 2, wherein in the case where all of the virtual video slots are occupied as the occupation coordination flag bit and the resource occupation table, the first protection slot is zero; and under the condition that all the filling video time slots are occupied as the occupation coordination data, the second protection time slot is zero.

4. The method of claim 2, wherein the transmitting the pixel data to the second receiver by the occupation coordinating data and occupation coordinating pixel data resource combination comprises:

5. The method of claim 4, further comprising: and under the condition that the transmission type is error correction transmission, error correction pixel data during error correction transmission is transmitted on resources occupied by an error correction receiving end, or the error correction pixel data is transmitted by occupying coordination data and/or occupying coordination pixel data, wherein the error correction receiving end is a receiving end for transmitting pixel data which is the same as the error correction pixel data.

6. The method of claim 4, further comprising: under the condition that the transmission type is retransmission, determining pixel data to be retransmitted according to retransmission information, and determining occupied resources of the pixel data to be retransmitted in a third receiving terminal, wherein the third receiving terminal comprises a receiving terminal with performance parameters larger than or equal to that of the receiving terminal to be retransmitted;

7. The method of claim 1, further comprising: and in the case that the transmission of the pixel data of the second receiving end cannot be completed by combining the occupation coordinating data and the occupation coordinating pixel data resources, transmitting the pixel data by any one of the following modes:

or determining the receiving ends which are not allocated with the resources, wherein the receiving ends which are not allocated with the resources comprise a fourth receiving end and a fifth receiving end;

8. A multi-channel data transmission method based on an occupancy coordination mechanism is applied to a receiving end in a video image processing system, and the method comprises the following steps:

feeding back first information of the mapping field to a transmission end, wherein the first information represents that the transmission end does not normally allocate the occupied coordinated pixel data resources;

9. The method of claim 8, wherein after the first information of the feedback mapping field is transmitted to a transmission end, the method further comprises:

determining the occupation coordination pixel data resources and occupation coordination data used when pixel data are received according to a resource occupation table in a preset frame structure;

10. The method of claim 8, wherein composing and displaying video data from the pixel data comprises:

11. A multi-channel data transmission device based on an occupation coordination mechanism is applied to a video image processing system, wherein a transmission end in the video image processing system is used for transmitting pixel data to a plurality of receiving ends, and the device comprises:

and the joint distribution module is used for starting the occupation coordination data in the frame structure under the condition that the distributed resources cannot meet the pixel data received by the second receiving end, distributing the occupation coordination data and the occupation coordination pixel data resources for the second receiving end, and carrying out the pixel data transmission on the second receiving end through the joint of the occupation coordination data and the occupation coordination pixel data resources.

12. A multi-channel data transmission device based on an occupation coordination mechanism is applied to a receiving end in a video image processing system, and the device comprises:

the first feedback module is used for feeding back first information of a mapping field under the condition that occupied coordinated pixel data resources in a preset frame structure do not meet the requirement of pixel data to be transmitted, wherein the first information represents that the occupied coordinated pixel data resources are not normally distributed by a transmission end;

and the second feedback module is used for feeding back second information of the mapping field to the transmission end, wherein the second information represents that the transmission end normally allocates the occupied coordinated pixel data resource.

13. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7 or claims 8 to 10.

14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7 or 8 to 10.