CN114448493A - Satellite integrated data interaction system - Google Patents

Abstract

The present application discloses a satellite integrated data interaction system, which includes: a high-speed data interaction architecture, a medium-speed data interaction architecture, and a low-speed data interaction architecture, wherein the high-speed data interaction architecture includes at least one computing node, a first switch, and at least one A first device to realize high-speed data interaction between the computing node and the first device; the medium-speed data interaction architecture includes a first switch, a second switch and at least one second device to realize the interaction between the first device and the second device. The medium-speed data exchange between the two; the medium-speed data exchange architecture includes at least one computing node and at least one third device, so as to realize the low-speed data exchange between the computing node and the third device through the 1553B bus. The present application solves the technical problem of insufficient data transmission capability in the prior art.

Description

A satellite integrated data exchange system

technical field

The present application relates to the technical field of spacecraft communication, and in particular, to a satellite integrated data interaction system.

Background technique

With the rapid development of spacecraft communication technology, satellite communication has been widely used in many different fields due to its advantages of large communication range, high reliability and multiple access, and the types and functions of satellites are becoming more and more abundant. For different functions and requirements, various types of payloads and computing nodes are configured on the satellite. For example, payloads include star-sensing, ground-sensing, image processing equipment, data processing equipment, etc., and computing nodes include intelligent computing nodes, logical computing nodes, Digital signal processing computing nodes, etc. In order to realize data processing and information transmission, data interaction is carried out between the payload in the satellite and the computing nodes.

At present, in order to realize the data interaction between the payload and the computing node, the computing node and the payload in the satellite can be connected through the 1553B bus or the SWP bus, but since the 1553B bus is suitable for low-speed data transmission (1Mbit/s), the SWP bus data transmission rate The maximum does not exceed 200Mbit/s. In the future, with the increasing demand for satellite intelligent processing, high-speed information exchange between loads and computing nodes is required, and the rate is as high as several Gbits/s or even tens of Gbits/s. To meet its needs, how to achieve high-speed data transmission has become an urgent problem to be solved.

SUMMARY OF THE INVENTION

The technical problem solved by the present application is that the data transmission capability in the prior art is insufficient. The application provides a satellite integrated data interaction system. In the solution provided by the embodiments of the application, a high-speed data interaction architecture, a medium-speed data interaction architecture, and a low-speed data interaction architecture coexist with multiple data interaction architectures. Support high-speed data transmission, so that the satellite system can support high-speed data transmission capability and solve the problem of low data exchange rate in the current satellite system; , to improve the adaptability of the satellite system.

In a first aspect, an embodiment of the present application provides a satellite integrated data interaction system, the system includes: a high-speed data interaction architecture, a medium-speed data interaction architecture, and a low-speed data interaction architecture, wherein,

The high-speed data interaction architecture includes at least one computing node, a first switch, and at least one first device. One end of the first switch is connected to the at least one computing node through the RapidIO bus, and the other end is connected to the at least one first device through the RapidIO bus to implement computing. High-speed data interaction between the node and the first device, wherein the first device refers to a device that uses the RapidIO bus to transmit data;

The medium-speed data interaction architecture includes a first switch, a second switch, and at least one second device. One end of the second switch is connected to the at least one second device through the SWP bus, and the other end is connected to the first switch, so as to realize the first device and the second device. Medium-speed data interaction between two devices, wherein the second device refers to a device that uses the SWP bus to transmit data;

The medium-speed data interaction architecture includes at least one computing node and at least one third device, and each computing node is connected to at least one third device through the 1553B bus, so as to realize low-speed data interaction between the computing node and the third device through the 1553B bus, Among them, the third device is the remote terminal RT of the 1553B bus.

Optionally, the at least one first device includes a device that uses the RapidIO bus to transmit data inside the satellite and/or a device that uses the RapidIO bus to transmit data outside the satellite.

Optionally, the low-speed data interaction architecture further includes: at least one remote terminal RT of the CSB bus, where the at least one remote terminal is connected to one or more second devices through the CSB bus.

Optionally, at least one second device includes one or more first-level remote terminals and one or more second-level remote terminals, wherein each first-level remote terminal is directly connected to the second switch through the SWP bus, and each A second-level remote terminal is connected with the first-level remote terminal through the SWP bus.

Optionally, data interaction is performed between the first switch and at least one first device, and between the first switch and each computing node through one or more RapidIO channels.

Optionally, data interaction is performed between the second switch and the at least one second device through one or more SWP channels.

Optionally, each compute node, specifically for:

Obtain low-speed data from at least one third device through the 1553B bus, or obtain medium-speed data from at least one second device through the SWP bus, or obtain high-speed data from at least one first device through the RapidIO bus;

Process low-speed data, medium-speed data or high-speed data to obtain processed data, wherein the processed data includes processed low-speed data, processed medium-speed data or processed high-speed data;

Send the processed data low-speed data to at least one second device or at least one first device; or send the processed medium-speed data to at least one first device or at least one third device; or send the processed high-speed data Sent to at least one first device or at least one second device.

Optionally, low-speed data, medium-speed data or high-speed data are processed to obtain processed data, including:

For the transmission between the medium-speed data interaction architecture and the high-speed data interaction architecture, perform protocol conversion on medium-speed data to obtain processed medium-speed data, or perform protocol conversion on high-speed data to obtain processed high-speed data. The medium-speed data supports the RapidIO bus protocol, and the processed high-speed data supports the SWP bus protocol;

For the transmission from the low-speed data interaction architecture to the high-speed data interaction architecture, obtain the transport layer protocol segment data in the low-speed data, encapsulate the transport layer protocol segment data into data in VCDU format, and use the encapsulated data as the processed low-speed data .

Optionally, the computing node is further configured to: select a channel for data interaction with each first device according to the state of one or more RapidIO channels;

A channel for data interaction with each second device is selected according to the state of one or more SWP channels.

Optionally, if the processed low-speed data is sent to at least one first device, the computing node is further configured to cache the processed low-speed data.

Compared with the prior art, the embodiments of the present application at least have the following beneficial effects:

In the solution provided by the embodiments of the present application, a high-speed data interaction architecture, a medium-speed data interaction architecture, and a low-speed data interaction architecture coexist with multiple data interaction architectures. On the one hand, high-speed data transmission is supported, so that the satellite system supports high-speed data. The transmission capability solves the problem of low data exchange rate in the current satellite system; on the other hand, it supports the coexistence of multiple data transmission rates, provides access capabilities for other high-speed, medium-speed and low-speed buses, and improves the adaptability of the satellite system.

Description of drawings

1 is a schematic structural diagram of a satellite integrated data interaction system provided by an embodiment of the present application;

2 is a schematic diagram of data mutual transmission in different data interaction architectures provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of data mutual transmission in different data interaction architectures provided by an embodiment of the present application.

Detailed ways

In the solutions provided in the embodiments of the present application, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

In order to better understand the above technical solutions, the technical solutions of the present application will be described in detail below through the accompanying drawings and specific embodiments. It is not a limitation on the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments may be combined with each other under the condition of no conflict.

Referring to FIG. 1 , it is a schematic structural diagram of a satellite integrated data interaction system according to an embodiment of the present application. In FIG. 1, the system includes: a high-speed data interaction architecture, a medium-speed data interaction architecture, and a low-speed data interaction architecture, wherein the high-speed data interaction architecture includes at least one computing node, a first switch, and at least one first device. One end of the first switch It is connected to at least one computing node through the RapidIO bus, and the other end is connected to at least one first device through the RapidIO bus, so as to realize high-speed data interaction between the computing node and the first device, where the first device refers to using the RapidIO bus to transmit data The medium-speed data exchange architecture includes a first switch, a second switch and at least one second device, one end of the second switch is connected to the at least one second device through a SWP (Space Wire) bus, and the other end is connected to the first switch. To realize medium-speed data interaction between the first device and the second device, wherein the second device refers to a device that uses the SWP bus to transmit data; the medium-speed data interaction architecture includes at least one computing node and at least one third device, each Each computing node is connected to at least one third device through the 1553B bus, so as to realize low-speed data interaction between the computing node and the third device through the 1553B bus, wherein the third device is the remote terminal RT of the 1553B bus.

Specifically, in the solution provided by the embodiment of the present application, each satellite includes one or more computing nodes. As an example, the computing nodes include but are not limited to digital signal processing (Digital Signal Processing, DSP) computing units, cost Computing unit, Field Programmable Gate Array (Field Programmable Gate Array, FPGA) computing unit and high reliability computing unit, etc. In the satellite, each computing node can exchange data with other devices inside the satellite, and can also exchange data with devices outside the satellite. That is, the data interaction in the satellite includes two layers: the first layer is the data interaction between the computing node and the device inside the satellite, and the second layer is the data interaction between the computing node and the device outside the satellite. In the solution provided by the embodiment of the present application, in order to realize the data interaction within the satellite or between the satellites, the data interaction system is divided into three domains according to the data transmission rate, which are a high-speed data interaction architecture, a medium-speed data interaction architecture, and a low-speed data interaction architecture. Data interaction architecture, among these three architectures, the data transmission rate from high to low is high-speed data interaction architecture, medium-speed data interaction architecture and low-speed data interaction architecture, among which, high-speed data interaction architecture supports data transmission rate greater than 200Mbit/ s, the medium-speed data interaction architecture supports a maximum data transmission rate of not more than 200Mbit/s, and the low-speed data interaction architecture supports a data transmission rate of 1Mbps. For ease of understanding, a brief introduction to each architecture is given below.

1. High-speed data interaction architecture

Specifically, in the solution provided by the embodiment of the present application, the high-speed data interaction architecture consists of at least one computing node, a first switch, and at least one first device, wherein the first switch is an SRIO switch, that is, a device that supports the RapidIO bus protocol. switch.

Further, the high-speed data interaction architecture takes the SRIO switch as the core, and performs data interaction with the first device that has high-speed data processing and transmission requirements. For example, the first device is an inter-satellite transceiver, a data transmission unit, and the like. In the process of high-speed data interaction, the computing node in the high-speed data interaction architecture needs to process the received data, and at the same time send the processed data to devices in other interaction architectures connected to the computing node or different computing nodes. to meet the needs of heterogeneous computing. The computing nodes (such as processors) carried on the satellite can take the form of SPARC/PowerPC/FPGA/ARM.

Further, in a possible implementation manner, the at least one first device includes a device that uses the RapidIO bus to transmit data inside the satellite and/or a device that uses the RapidIO bus to transmit data outside the satellite.

As an example, in the solution provided by the embodiment of the present application, a high-speed data interaction architecture is constructed through two different representation forms of an external bus and an internal bus. In addition, if there are devices in other physical locations that require high-speed data exchange, you can increase the number of SRIO switches, that is, there are one or more SRIO switches in the high-speed data exchange architecture, and use the remote terminal connected to the SRIO switch to access high-speed Data Interaction Architecture.

Further, in a possible implementation manner, data interaction is performed between the first switch and at least one first device, and between the first switch and each computing node through one or more RapidIO channels.

As an example, in order to ensure data transmission between the first switch and the first device and between the first switch and the computing node, one or more RapidIO channels are set between the first switch and at least one first device, for example, set 8 RapidIO channels; one or more RapidIO channels are also set between the first switch and each computing node, for example, two RapidIO channels are set between the first switch and each computing node.

Further, in order to ensure data transmission between the first switch and the first device, the computing node also selects a channel for data interaction with each first device according to the state of one or more RapidIO channels connected to the first device.

2. Medium-speed data interaction architecture

Specifically, in the solution provided by the embodiment of the present application, the medium-speed data interaction architecture consists of a first switch, a second switch, and at least one second device, wherein one end of the second switch communicates with the at least one second device through the SWP bus. The other end is connected to the first switch, so as to realize medium-speed data interaction between the first device and the second device, where the second device refers to a device that uses the SWP bus to transmit data. As an example, the second switch is a SWP switch, that is, the second switch is a switch supporting the SWP bus protocol, for example, the SWP switch may use the RMAP protocol.

Further, the medium-speed data interaction architecture is centered on the SPW switch. One end of the SPW switch uses the SRIO bus to connect to the SRIO switch, and the other end has multiple SPW interfaces, which are connected to at least one second device on the satellite that uses the SPW bus to transmit. In the high-performance integrated electronic system system, the second device using the SPW bus accounts for a large proportion. For example, the second device includes an integrated star sensor, an on-board image processing unit, and the like. During the medium-speed data interaction process, the computing nodes in the medium-speed data interaction architecture need to process the received data, and at the same time send the processed data to devices or different computing devices in other interaction architectures connected to the computing nodes. nodes to meet the needs of heterogeneous computing.

Further, in a possible implementation manner, the at least one second device includes one or more first-level remote terminals and one or more second-level remote terminals, wherein each first-level remote terminal is directly connected through the SWP bus. Connected with the second switch, each second-level remote terminal is connected with the first-level remote terminal through the SWP bus.

In the solution provided by the embodiment of this application, in the medium-speed data interaction architecture, some functions of the computing node, such as analog quantity acquisition, direct command output, matrix command, and telemetry, can also be accessed in the form of remote terminals. To the SPW network, data processing and control are performed by the computing nodes. The SPW bus adopts the form of end-to-end transmission. If there are many on-board access requirements, it can be connected to the SPW switch in the form of multi-level remote terminals to expand the number of access terminals. As an example, the multi-level remote terminal includes two levels of remote terminals, which are the first-level remote terminal directly connected to the second switch through the SWP bus, and the second-level remote terminal connected to the first-level remote terminal through the SWP bus. .

Further, in a possible implementation manner, data interaction is performed between the second switch and the at least one second device through one or more SWP channels.

As an example, in order to ensure data transmission between the second switch and the second device, one or more SWP channels are set between the second switch and at least one second device, for example, three SWP channels are set.

Further, in order to ensure data transmission between the second switch and the second device, the computing node further selects a channel for data interaction with each second device according to the state of one or more SWP channels.

3. Low-speed data interaction architecture

Specifically, in the solution provided by the embodiment of the present application, the medium-speed data interaction architecture consists of at least one computing node and at least one third device, and each computing node is connected to at least one third device through the 1553B bus, so as to pass the 1553B bus Realize low-speed data interaction between the computing node and a third device, where the third device is a bus control terminal (Bus Control, BC).

Further, the low-speed data interaction architecture is based on 1553B_BC. Since the 1553B bus needs to have a BC terminal for the command response type, the 1553B_BC is also integrated in the satellite, one end is controlled by the computing node, and the other end is connected to the 1553B bus as the BC terminal. In addition, in the process of 1553B bus transmission, the equipment with low-speed data transmission requirements is attached to the 1553B bus as a remote terminal (Remote Terminal, RT). For example, the remote terminal is a power controller, a load distribution interface unit, a component Health assessment instrument, spaceborne photoelectric processor, mechanical parameter measuring instrument, etc.

Further, in the solution provided by the embodiment of the present application, the low-speed data interaction architecture further includes: at least one remote terminal RT of the CSB bus, and the at least one remote terminal is connected to one or more second devices through the CSB bus.

In the solution provided by the embodiment of the present application, in the low-speed data interaction architecture, a remote terminal can also be used as the remote terminal BC in the 1553B bus, and the remote terminal can also be connected to the second device in the medium-speed data interaction architecture. , to collect and convert low-speed data for loads that only have low-speed data transmission. As an example, the remote terminal may be connected to the second device through the CSB bus.

In order to facilitate understanding, the functions of the computing nodes in the above-mentioned satellite integrated data interaction system are briefly introduced below.

In a possible implementation manner, each computing node is specifically used to: obtain low-speed data from at least one third device through the 1553B bus, or obtain medium-speed data from at least one second device through the SWP bus, or through the RapidIO bus Obtain high-speed data from at least one first device; process low-speed data, medium-speed data or high-speed data to obtain processed data, wherein the processed data includes processed low-speed data, processed medium-speed data or processed send processed data low-speed data to at least one second device or at least one first device; or send processed medium-speed data to at least one first device or at least one third device; or send processed data to at least one first device or at least one third device; The subsequent high-speed data is sent to at least one first device or at least one second device.

In the solutions provided by the embodiments of this application, data in the high-speed data interaction architecture, the medium-speed data interaction architecture, and the low-speed data interaction architecture can be transmitted to each other. For example, the computing node receives high-speed data from any first device through the first switch. , which can be transmitted to one or more third devices through the 1553B bus connected to the computing node, that is, the data is transmitted from the high-speed data interaction architecture to the low-speed data interaction architecture; The second switch sends the data to one or more second devices, that is, the data is transferred from the high-speed data exchange framework to the medium-speed data exchange framework. Specifically, referring to FIG. 2 , which is a schematic diagram of data mutual transmission in different data interaction architectures provided by an embodiment of the present application, wherein, in FIG. 2 , the high-speed data interaction architecture is referred to as high-speed, and the medium-speed data interaction architecture is referred to as medium-speed, The low-speed data interaction architecture is referred to as low-speed; the high-speed data interaction architecture sends data through the SRIO interface, the medium-speed data interaction architecture sends data through the SWP bus, and the low-speed data interaction architecture sends data through the 1553B bus and the Universal Asynchronous Receiver/Transmitter (URAT). . In addition, for convenience of description, in FIG. 2 , the first switch is referred to as a high-speed switching SRIO switch, and the second switch is referred to as a medium-speed switching SWP switch. Computing nodes include but are not limited to functions such as intelligent computing, logical computing, floating-point computing, and general computing.

Because the buses supported by devices in different data interaction architectures are different, for example, the first device in the high-speed data interaction architecture supports the RapidIO bus, and the second device in the medium-speed data interaction architecture supports the SWP bus. When an architecture is transmitted to another data interaction architecture, the received data to be transmitted needs to be processed to obtain processed data.

As an example, in a possible implementation manner, low-speed data, medium-speed data or high-speed data are processed to obtain processed data, including:

For the transmission between the medium-speed data interaction architecture and the high-speed data interaction architecture, perform protocol conversion on medium-speed data to obtain processed medium-speed data, or perform protocol conversion on high-speed data to obtain processed high-speed data. The medium-speed data supports the RapidIO bus protocol, and the processed high-speed data supports the SWP bus protocol;

For the transmission from the low-speed data interaction architecture to the high-speed data interaction architecture, obtain the transport layer protocol segment data in the low-speed data, encapsulate the transport layer protocol segment data into data in VCDU format, and use the encapsulated data as the processed low-speed data .

In the solution provided by the embodiment of the present application, for data transmission between devices in the high-speed data interaction architecture and the medium-speed data interaction architecture, when processing data, the computing node mainly performs conversion between SPW and SRIO. For data entering the high-speed data interaction architecture from the low-speed data interaction architecture, it can be realized by re-encapsulating packets in the transport layer protocol data segment. As an example, the encapsulated data is in a virtual channel data unit (Virtual Channel Data Unit, VCDU) format. Further, in the process of data encapsulation, if the difference in the amount of data transmission is large, the data encapsulation can be realized by filling the data.

As an example, in a possible implementation manner, if the processed low-speed data is sent to at least one first device, the computing node is further configured to cache the processed low-speed data.

In the solution provided by the embodiment of the present application, the data from the high-speed data interaction architecture to the low-speed data interaction architecture must be realized by means of cache transmission. If the data is required to be continuous, the data of the high-speed data interaction architecture cannot be fully transmitted. Therefore, the data that needs to be transferred from the high-speed data interaction architecture to the low-speed data interaction architecture needs to consider its transmission cycle. The high-speed data interaction architecture supports the SRIO transmission protocol. The SRIO data sent to the SPW switch should be in a parseable form, and an appropriate buffer space should be set. . In contrast, the transmission protocols of the medium-speed data interaction architecture and the low-speed data interaction architecture have relatively high time redundancy, so data stability and reliability should be considered. Specifically, referring to FIG. 3 , which is a schematic diagram of data interaction in a different data interaction architecture provided by an embodiment of the present application, wherein a high-speed data interaction architecture and a medium-speed data interaction architecture can be bridged through SRIO-SWP.

It should be understood that the satellite integration mentioned in the embodiments of this application refers to integrating one or more computing nodes, part or all of at least one first device, at least one second device, and at least one third device, first switch, The second switch etc. are integrated into the satellite interior.

In the solution provided by the embodiments of the present application, a high-speed data interaction architecture, a medium-speed data interaction architecture, and a low-speed data interaction architecture coexist with multiple data interaction architectures. On the one hand, high-speed data transmission is supported, so that the satellite system supports high-speed data. The transmission capability solves the problem of low data exchange rate in the current satellite system; on the other hand, it supports the coexistence of multiple data transmission rates, provides access capabilities for other high-speed, medium-speed and low-speed buses, and improves the adaptability of the satellite system.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (10)

1. a satellite integrated data interaction system, is characterized in that, comprises: high-speed data interaction architecture, medium-speed data interaction architecture and low-speed data interaction architecture, wherein, The high-speed data interaction architecture includes at least one computing node, a first switch, and at least one first device. One end of the first switch is connected to the at least one computing node through the RapidIO bus, and the other end is connected to the at least one first device through the RapidIO bus to implement computing. High-speed data interaction between the node and the first device, wherein the first device refers to a device that uses the RapidIO bus to transmit data; The medium-speed data interaction architecture includes a first switch, a second switch, and at least one second device. One end of the second switch is connected to the at least one second device through the SWP bus, and the other end is connected to the first switch, so as to realize the first device and the second device. Medium-speed data interaction between two devices, wherein the second device refers to a device that uses the SWP bus to transmit data; The medium-speed data interaction architecture includes at least one computing node and at least one third device, and each computing node is connected to at least one third device through the 1553B bus, so as to realize low-speed data interaction between the computing node and the third device through the 1553B bus, Among them, the third device is the remote terminal RT of the 1553B bus. 2. The system of claim 1, wherein the at least one first device comprises a device that uses the RapidIO bus to transmit data inside the satellite and/or a device that uses the RapidIO bus to transmit data outside the satellite. 3. The system of claim 2, wherein the low-speed data interaction architecture further comprises: at least one remote terminal RT of the CSB bus, the at least one remote terminal is connected to one or more second devices through the CSB bus. 4. The system of claim 3, wherein the at least one second device comprises one or more primary remote terminals and one or more secondary remote terminals, wherein each primary remote terminal passes SWP The bus is directly connected to the second switch, and each secondary remote terminal is connected to the primary remote terminal through the SWP bus. 5 . The system of claim 4 , wherein data interaction is performed between the first switch and at least one first device, and between the first switch and each computing node through one or more RapidIO channels. 6 . 6. The system of claim 5, wherein data exchange is performed between the second switch and the at least one second device through one or more SWP channels. 7. The system of claim 6, wherein each computing node is specifically used for: Obtain low-speed data from at least one third device through the 1553B bus, or obtain medium-speed data from at least one second device through the SWP bus, or obtain high-speed data from at least one first device through the RapidIO bus; Process low-speed data, medium-speed data or high-speed data to obtain processed data, wherein the processed data includes processed low-speed data, processed medium-speed data or processed high-speed data; Send the processed data low-speed data to at least one second device or at least one first device; or send the processed medium-speed data to at least one first device or at least one third device; or send the processed high-speed data Sent to at least one first device or at least one second device. 8. The system of claim 7, wherein the low-speed data, the medium-speed data or the high-speed data are processed to obtain the processed data, comprising: For the transmission between the medium-speed data interaction architecture and the high-speed data interaction architecture, perform protocol conversion on medium-speed data to obtain processed medium-speed data, or perform protocol conversion on high-speed data to obtain processed high-speed data. The medium-speed data supports the RapidIO bus protocol, and the processed high-speed data supports the SWP bus protocol; For the transmission from the low-speed data interaction architecture to the high-speed data interaction architecture, obtain the transport layer protocol segment data in the low-speed data, encapsulate the transport layer protocol segment data into data in VCDU format, and use the encapsulated data as the processed low-speed data . 9. The system of claim 8, wherein the computing node is also used for: selecting a channel for data interaction with each first device according to the state of one or more RapidIO channels; A channel for data interaction with each second device is selected according to the state of one or more SWP channels. 10. The system of claim 9, wherein if the processed low-speed data is sent to at least one first device, the computing node is further configured to cache the processed low-speed data.

Images