CN117060966A - Communication method and system between satellite-borne IP protocol network and 1553B bus network - Google Patents

Communication method and system between satellite-borne IP protocol network and 1553B bus network Download PDF

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Publication number
CN117060966A
CN117060966A CN202310932247.6A CN202310932247A CN117060966A CN 117060966 A CN117060966 A CN 117060966A CN 202310932247 A CN202310932247 A CN 202310932247A CN 117060966 A CN117060966 A CN 117060966A
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China
Prior art keywords
network
satellite
address
terminal
bus
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CN202310932247.6A
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Inventor
吴侃侃
李林伟
齐晓军
张凯华
王驰
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Shanghai Institute of Satellite Engineering
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Shanghai Institute of Satellite Engineering
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Priority to CN202310932247.6A priority Critical patent/CN117060966A/en
Publication of CN117060966A publication Critical patent/CN117060966A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/604—Address structures or formats

Abstract

The application provides a communication method and a system between a satellite-borne IP protocol network and a 1553B bus network, wherein the communication method comprises a plurality of satellites with the satellite-borne IP protocol network and the 1553B bus network; and a bus controller or a remote terminal in the 1553B bus network is used as an IP network terminal to access an IP network, the 1553B bus network bears an IP data packet, and data addressing and transmission between the satellite-borne IP protocol network and the 1553B bus network are realized according to the mapping relation between an IP address of an IP network layer and RT addresses and sub addresses of the 1553B bus network. The application can meet the requirements of unified addressing and high-efficiency processing of the whole network of data transmission between the IP network and the 1553B bus network terminal by the definition mode of the generalized IP address of the satellite-borne IP protocol network and the 1553B bus network and the processing rule of each field of the IP address.

Description

Communication method and system between satellite-borne IP protocol network and 1553B bus network
Technical Field
The application relates to the technical field of space and satellite-borne communication networks, in particular to a communication method and a communication system between a satellite-borne IP protocol network and a 1553B bus network.
Background
Information transfer between the on-board electronic devices is achieved through specialized interconnection techniques. The introduction of the field bus technology relieves the interconnection cost to a certain extent, and establishes a physical layer and link layer transmission system suitable for a space environment. However, in the face of satellite intelligence and networking demands, transmission barriers brought by heterogeneous field buses prevent in-satellite data sharing. Under the development trend of the world integration communication, five-layer communication protocol models of a physical layer, a data link layer, a network layer, a transmission layer and an application layer based on a CCSDS protocol and a TCP/IP protocol gradually form main stream consensus, and are gradually popularized and applied at present. However, the communication of the data in the star is mainly based on the field bus technology, including RS-422 and MIL-STD-1553B, CAN, especially the 1553B bus is most widely used. How to perform fusion communication on an intra-satellite data network represented by a 1553B bus and an IP network to form a unified addressing mechanism, reduce data transmission conversion cost, open information interaction blocking and data application island, and become a key for improving the efficiency and reliability of the inter-satellite, inter-satellite and intra-satellite data transmission network.
Through literature search of the prior art, research on satellite-to-ground, inter-satellite and intra-satellite data transmission communication has been carried out on part of spacecrafts at home and abroad, but a mature solution has not been formed in general.
In the patent document of CN105991384B, namely, a communication method compatible with time triggered Ethernet and 1553B space Ethernet, a data transmission method of 1553B command responsive transmission mechanism and time triggered message and IT application data sharing an Ethernet MAC link layer based on priority is proposed, and the communication adaptation of an application layer of a 1553B interface user is reduced, and the communication mode of the bottom layer is completely changed into Ethernet.
In patent document "a 1553B compatible time-triggered ethernet switching device and method", publication number CN110417630a, an implementation manner of a 1553B bus processing module and a time-triggered ethernet switching module is proposed, and data conversion is implemented through an address mapping table of a 1553B remote terminal address and a time-triggered ethernet virtual link number.
The patent document with publication number CN108173587B discloses a space station testing system based on 1553B, ethernet, RS422 and other connection modes in a space station aerospace technology test information management system based on network communication, wherein 1553B and Ethernet interfaces of all devices are relatively fixed, RT addresses and IP addresses are fixed, and data unpacking and unpacking are carried out based on a specific protocol.
Patent document "an ethernet communication system based on 1553B protocol" of publication number CN108011797B discloses a method of implementing transmission of 1553B data frames in ethernet network and 1553B network by adding 1553 control sublayer in OSI seven-layer network model data link layer, and mapping RT address to virtual MAC address to implement relative mapping of data transmission command word and data word. The method solves the mapping problem of the physical addresses of the Ethernet and the 1553B networks, but does not solve the mapping and addressing problems of the logical addresses of large complex network scales.
An FC-AE-1553 and Ethernet network system supporting IP protocol is disclosed in a patent document of a multiprotocol fusion system, IP communication between nodes and an FC-AE-1553 communication method with publication number CN106790104A, but a master-slave 1553B network is not involved.
Searching and analyzing the prior art can find that the following problems exist:
1) The existing method is generally customized to specific network scale, topology, service interaction requirements and the like, has insufficient generality and flexibility, and cannot solve the problem of universality of data interaction of an inter-satellite, inter-satellite and satellite IP network and a 1553B network;
2) The existing method is less related to unified design of complex space network logical addresses and mapping method of the complex space network logical addresses and 1553B network addresses, when different satellites and different networks communicate, a data source end cannot directly point to addresses of a data destination end, the addresses are often processed through various protocol conversion devices, and the capacity of unified addressing of the whole network is seriously insufficient.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to provide a communication method and a communication system between a satellite-borne IP protocol network and a 1553B bus network.
The communication system between the satellite-borne IP protocol network and the 1553B bus network comprises a plurality of satellites, wherein the satellites are respectively provided with the satellite-borne IP protocol network and the 1553B bus network; the satellite-borne IP protocol network comprises an IP network terminal, an IP network switch and a satellite-borne gateway; the 1553B bus network comprises a bus controller BC and a remote terminal RT; and a bus controller or a remote terminal in the 1553B bus network is used as an IP network terminal to access an IP network, the 1553B bus network bears an IP data packet, and bidirectional data addressing and transmission between the satellite-borne IP protocol network and the 1553B bus network are realized according to the mapping relation between an IP address of an IP network layer and RT addresses and sub addresses of the 1553B bus network.
Preferably, the IPv6 address of the on-board IP protocol network layer of the on-board IP protocol network includes a spacecraft identifier that indicates a transmission frame spacecraft identifier of a CCSDS spatial data link protocol sublayer, a spatial subnet number that indicates a spatial network number in which a satellite is located, a spatial link number that indicates a satellite-to-ground and inter-satellite data transmission link number of the satellite, a satellite subnet number that indicates an address number of a different data transmission network in the satellite, and an in-satellite terminal number that indicates an address number of various terminal devices in the different data transmission network in the satellite; the 1553B bus network bus controller and the in-satellite terminal number field of the remote terminal comprise a sub-address field and an RT address field.
Preferably, in the communication mode between different bus controllers and remote terminals in the same 1553B bus network in the satellite, the data transmitting end and the receiving end are both 1553B bus network bus controllers or remote terminals, and the fields of a spacecraft identifier, a space subnet number, a space link number and a satellite-borne subnet number of a source IP address and a destination IP address in an IP data packet header are given by the data transmitting end as fixed characteristic values, so that default local network transmission is indicated; the source IP address in the IP data packet header and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet transmitting end, and the sub-address field is the sub-address number of the data packet transmitting definition in advance; the RT address field of the destination IP address in-satellite terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the pre-defined sub-address number of the data packet transmission; the source IP address in-satellite terminal coding sub-address field and the destination IP address in-satellite terminal coding sub-address field are consistent.
Preferably, in a communication mode between any network terminals of the same IP network in the satellite, the data transmitting end and the receiving end are both IP network terminals, and the fields of a spacecraft identifier, a space subnet number, a space link number and a satellite-borne subnet number in the packet header of an IP data packet are given by the data transmitting end as fixed characteristic values to represent default local network transmission; the source IP address and the destination IP address in the IP data packet header are defined by the IP network.
Preferably, in a communication mode between any bus controller or remote terminal of a 1553B bus network in a satellite and any terminal of an IP network of the satellite, a data transmitting end and a receiving end are all in-satellite terminals, and a spacecraft identifier, a space subnet number and a space link number field of a source IP address and a destination IP address in an IP data packet header are given by the data transmitting end as fixed characteristic values to represent default in-satellite transmission; the satellite-borne sub-network number fields of the source IP address and the destination IP address are given a predefined value by a data transmitting end so as to distinguish 1553B bus network from satellite-borne IP protocol network;
when any bus controller of the 1553B bus network and a remote terminal send data to any terminal of the star IP network, the data sending terminal is the 1553B bus network bus controller or the remote terminal, the source IP address in the IP data packet header and the RT address field of the number of the in-star terminal are the BC/RT address of the data packet sending terminal, and the sub-address field is the pre-defined sub-address number of the data packet sending; the data receiving end is an IP network terminal, and the number of the terminal in the satellite of the destination IP address in the packet head of the IP data packet is defined by the IP network;
when any terminal of the satellite-borne IP protocol network transmits data to any bus controller and remote terminal of the satellite 1553B bus network, the data transmitting terminal is an IP network terminal, and the number of the source IP address in the IP data packet header is defined by the IP network; the data receiving end is a 1553B bus network bus controller or a remote terminal, the RT address field of the destination IP address in-star terminal number in the IP data packet header is the BC/RT address of the data packet receiving end, and the sub-address field is the sub-address number which is defined in advance and is sent by the data packet.
Preferably, in a communication mode between any bus controller of the inter-satellite 1553B bus network and any bus controller of the remote terminal and any bus controller of the inter-satellite 1553B bus network and the remote terminal, inter-satellite communication is realized through a satellite-borne gateway; the source IP address, the spacecraft identifier of the destination IP address and the satellite-borne subnet number in the IP data packet header are given a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite; the source IP address in the IP data packet header and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet transmitting end, and the sub-address field is the sub-address number of the data packet transmitting definition in advance; the RT address field of the destination IP address in-satellite terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the pre-defined sub-address number of the data packet transmission.
Preferably, in a communication mode among any bus controller of a 1553B bus network in a satellite, a remote terminal and any network terminal of an IP network in the satellite, the inter-satellite communication is realized through a satellite-borne gateway; the source IP address, the spacecraft identifier of the destination IP address and the satellite-borne subnet number in the IP data packet header are given a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite;
when any bus controller of 1553B bus network and remote terminal send data to any terminal of other in-satellite IP network, the data sending terminal is 1553B bus network bus controller or remote terminal, the source IP address in the IP data packet header and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet sending terminal, and the sub-address field is the pre-defined sub-address number for data packet sending; the data receiving terminal is an IP network terminal, and the number of the terminal in the satellite of the destination IP address in the IP data packet header is defined by the IP network.
When any terminal of the IP network sends data to any bus controller and remote terminal of the 1553B bus network in the star, the data sending terminal is the IP network terminal, and the number of the source IP address in the IP data packet header is defined by the IP network; the data receiving end is a 1553B bus network bus controller or a remote terminal, the RT address field of the destination IP address in-star terminal number in the IP data packet header is the BC/RT address of the data packet receiving end, and the sub-address field is the sub-address number which is defined in advance and is sent by the data packet.
Preferably, in a communication mode between any network terminal of an intra-satellite IP network and any network terminal of other intra-satellite IP network, inter-satellite communication is realized through a satellite-borne gateway; the source IP address, the spacecraft identifier of the destination IP address and the satellite-borne subnet number in the IP data packet header are given a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite; the source IP address and the destination IP address in the IP data packet header are defined by the IP network.
Preferably, when a certain bus controller or remote terminal of the 1553B bus network is used as an IP network terminal to access an IP network, the bus controller or remote terminal judges the destination IP address spacecraft identifier of the IP data packet and the satellite-borne subnet number field: if the spacecraft identifier and the satellite-borne subnet number field are fixed characteristic values, the data packet is transmitted in the local network; if the spacecraft identifier field is a fixed characteristic value, forwarding the data packet according to the satellite-borne subnet number field; if the spacecraft identifier and the satellite-borne subnet number field are predefined values, the data packet is forwarded to a satellite-borne gateway for further processing.
According to the communication method between the satellite-borne IP protocol network and the 1553B bus network, the communication system between the satellite-borne IP protocol network and the 1553B bus network is adopted for communication.
Compared with the prior art, the application has the following beneficial effects:
1. the communication method and the communication system between the satellite-borne IP protocol network and the 1553B bus network provide a generalized IP address definition mode, realize the mapping relation between the IP address of the IP network and the RT address and the sub address of the 1553B network, and meet the requirement of uniform addressing of the whole network for data transmission of the 1553B network terminal;
2. the communication method and the communication system between the satellite-borne IP protocol network and the 1553B bus network provide a source IP address and a destination IP address assignment mode when different terminals of the IP network and the 1553B network communicate, define the IP address universalization processing requirements of devices involved in the data packet receiving and transmitting process, and meet the high-efficiency processing requirements of data transmission.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a communication system of a satellite-borne IP protocol network and a 1553B bus network;
FIG. 2 is a schematic diagram of IPv6 address definition of a satellite-borne IP protocol network;
fig. 3 is a schematic diagram of a 1553B bus network bus controller and a remote terminal IPv6 address definition.
Detailed Description
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
The application provides a definition mode of a generalized IP address of a satellite-borne IP protocol network and a 1553B bus network and a processing rule of each field of the IP address, meets the requirements of unified addressing and efficient processing of the whole network of data transmission between the IP network and a 1553B bus network terminal, and has better universality, flexibility and expandability.
Specifically, in this embodiment, as shown in fig. 1, the communication system between the satellite-borne IP protocol network and the 1553B bus network according to the present application mainly comprises a plurality of satellites, each satellite has a satellite-borne IP protocol network and a 1553B bus network, the satellite-borne IP protocol network mainly comprises an IP network terminal, an IP network switch and a satellite-borne gateway, and the 1553B bus network mainly comprises a Bus Controller (BC) and a Remote Terminal (RT). A certain bus controller or remote terminal in the 1553B bus network is used as an IP network terminal to access an IP network, the 1553B bus network bears IP data packets, and bidirectional data addressing and transmission between the IP protocol network and the 1553B bus network are realized according to the mapping relation between an IP address of an IP network layer and RT addresses and sub addresses of the 1553B bus network.
The IPv6 address of the network layer of the spaceborne IP protocol mainly comprises a spacecraft identifier, a space subnet number, a space link number, a spaceborne subnet number, and an in-satellite terminal number field, as shown in fig. 2, which is specifically defined as:
(1) A spacecraft identifier representing a transport frame spacecraft identifier of the CCSDS spatial data link protocol sublayer;
(2) A space subnet number representing the space network number where the satellite is located;
(3) Space link number, which represents the satellite-ground and inter-satellite data transmission link number of the satellite;
(4) The satellite-borne subnet number represents the address numbers of different data transmission networks in the satellite;
(5) The number of the terminal in the satellite represents the address numbers of various terminal devices in different data transmission networks in the satellite, and further, the number fields of the terminal in the satellite of the 1553B bus network bus controller and the remote terminal comprise sub-address and RT address fields, as shown in figure 3.
The space link adopts five-layer communication protocol model of physical layer, data link layer, network layer, transmission layer and application layer based on CCSDS protocol and TCP/IP protocol. And realizing data analysis of a communication data network layer and the protocols between satellites through the satellite-borne gateway. Preferably, when the satellites communicate, the satellite-borne gateway carries out assignment of a source IP address, a destination IP address space subnet number and a space link number.
The communication mode between the satellite-borne IP protocol network and the 1553B bus network comprises the following steps:
(1) Communication between different bus controllers and remote terminals in the same 1553B bus network in satellite
In the communication mode, a data transmitting end and a receiving end are both 1553B bus network bus controllers or remote terminals, and in an IP data packet header, spacecraft identifiers of a source IP address and a destination IP address, a space subnet number, a space link number and a satellite-borne subnet number are assigned to fixed characteristic values by the data transmitting end to represent default intra-network transmission.
In the IP data packet header, the source IP address and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet transmitting end, and the sub-address field is the sub-address number of the data packet transmitting definition in advance; the RT address field of the destination IP address in-satellite terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the pre-defined sub-address number of the data packet transmission. The source IP address in-satellite terminal coding sub-address field and the destination IP address in-satellite terminal coding sub-address field are consistent.
(2) Communication between arbitrary network terminals of the same IP network in satellite
In the communication mode, a data transmitting end and a receiving end are both IP network terminals, and in an IP data packet header, a spacecraft identifier, a space subnet number, a space link number and a satellite-borne subnet number field of a source IP address and a destination IP address are assigned to a fixed characteristic value by the data transmitting end to represent default local network internal transmission.
In the IP data packet header, the source IP address and the destination IP address are defined by the IP network.
(3) Communication is carried out between any bus controller of 1553B bus network in satellite, remote terminal and any terminal of local satellite IP network
In the communication mode, a data transmitting end and a receiving end are both local in-satellite terminals, and in an IP data packet header, a spacecraft identifier, a space subnet number and a space link number field of a source IP address and a destination IP address are assigned to fixed characteristic values by the data transmitting end to represent default local in-satellite transmission. The satellite-borne subnet number fields of the source IP address and the destination IP address are assigned predefined values by the data transmitting end to distinguish 1553B bus network from IP network.
When any bus controller and remote terminal of 1553B bus network send data to any terminal of local star IP network, the data sending terminal is 1553B bus network bus controller or remote terminal, in the IP data packet header, the RT address field of source IP address and in-star terminal number is the BC/RT address of data packet sending terminal, and the sub address field is the pre-defined sub address number of data packet sending; the data receiving end is an IP network terminal, and in the IP data packet header, the number of the terminal in the target IP address star is defined by the IP network.
When any terminal of the IP network sends data to any bus controller and remote terminal of the star 1553B bus network, the data sending terminal is an IP network terminal, and in the packet head of an IP data packet, the number of the source IP address in-star terminal is defined by the IP network; the data receiving end is a 1553B bus network bus controller or a remote terminal, in the IP data packet header, the RT address field of the destination IP address in-star terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the sub-address number which is defined in advance and is sent by the data packet.
(4) Any bus controller of satellite inner 1553B bus network, remote terminal and any bus controller of other satellite inner 1553B bus network, and remote terminal are communicated
In this communication scheme, inter-satellite communication is realized via an on-board gateway. In the IP data packet header, a source IP address, a spacecraft identifier of a destination IP address and a satellite-borne subnet number are assigned to a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite.
In the IP data packet header, the source IP address and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet transmitting end, and the sub-address field is the sub-address number of the data packet transmitting definition in advance; the RT address field of the destination IP address in-satellite terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the pre-defined sub-address number of the data packet transmission.
(5) Communication is carried out between any bus controller of 1553B bus network in satellite, remote terminal and any network terminal of IP network in other satellite
In this communication scheme, inter-satellite communication is realized via an on-board gateway. In the IP data packet header, a source IP address, a spacecraft identifier of a destination IP address and a satellite-borne subnet number are assigned to a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite.
When any bus controller of 1553B bus network and remote terminal send data to any terminal of other in-satellite IP network, the data sending terminal is 1553B bus network bus controller or remote terminal, in the IP data packet header, the RT address field of source IP address and in-satellite terminal number is the BC/RT address of data packet sending terminal, and the sub address field is the pre-defined sub address number of data packet sending; the data receiving end is an IP network terminal, and in the IP data packet header, the number of the terminal in the target IP address star is defined by the IP network.
When any terminal of the IP network sends data to any bus controller and remote terminal of the 1553B bus network in the star, the data sending end is an IP network terminal, and in the IP data packet header, the number of the source IP address in-star terminal is defined by the IP network; the data receiving end is a 1553B bus network bus controller or a remote terminal, in the IP data packet header, the RT address field of the destination IP address in-star terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the sub-address number which is defined in advance and is sent by the data packet.
(6) Communication between any network terminal of IP network in satellite and any network terminal of IP network in other satellite
In this communication scheme, inter-satellite communication is realized via an on-board gateway. In the IP data packet header, a source IP address, a spacecraft identifier of a destination IP address and a satellite-borne subnet number are assigned to a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite.
In the IP data packet header, the source IP address and the destination IP address are defined by the IP network.
The 6 communication modes cover the data transmission requirement between the satellite-borne IP protocol network and the 1553B bus network.
When a certain bus controller or remote terminal of the 1553B bus network is used as an IP network terminal to access an IP network, the bus controller or remote terminal judges a spacecraft identifier of a destination IP address of an IP data packet and a satellite-borne subnet number field, and the method specifically comprises the following steps:
(1) If the spacecraft identifier and the satellite-borne subnet number field are fixed characteristic values, the data packet is transmitted in the local network;
(2) If the spacecraft identifier field is a fixed characteristic value, forwarding the data packet according to the satellite-borne subnet number field;
(3) If the spacecraft identifier and the satellite-borne subnet number field are predefined values, the data packet is forwarded to a satellite-borne gateway for further processing.
And the 1553B bus network bus controller and the remote terminal communicate with each other, and if the data packet is broadcast transmission, the RT address field of the number of the terminal in the satellite with the destination IP address is 0x1F.
The application also provides a communication method between the satellite-borne IP protocol network and the 1553B bus network, wherein the communication method between the satellite-borne IP protocol network and the 1553B bus network adopts the communication system between the satellite-borne IP protocol network and the 1553B bus network to communicate.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

Claims (10)

1. The communication system between the satellite-borne IP protocol network and the 1553B bus network is characterized by comprising a plurality of satellites, wherein the satellites are respectively provided with the satellite-borne IP protocol network and the 1553B bus network; the satellite-borne IP protocol network comprises an IP network terminal, an IP network switch and a satellite-borne gateway; the 1553B bus network comprises a bus controller BC and a remote terminal RT; and a bus controller or a remote terminal in the 1553B bus network is used as an IP network terminal to access an IP network, the 1553B bus network bears an IP data packet, and bidirectional data addressing and transmission between the satellite-borne IP protocol network and the 1553B bus network are realized according to the mapping relation between an IP address of an IP network layer and RT addresses and sub addresses of the 1553B bus network.
2. The communication system between a satellite-borne IP protocol network and a 1553B bus network according to claim 1, wherein the IPv6 address of the satellite-borne IP protocol network layer of the satellite-borne IP protocol network includes a spacecraft identifier that represents a transmission frame spacecraft identifier of a CCSDS spatial data link protocol sublayer, a space subnet number that represents a space network number where a satellite is located, a space link number that represents a satellite ground, an inter-satellite data transmission link number of the satellite, a satellite subnet number that represents an address number of a different data transmission network within the satellite, an intra-satellite terminal number that represents an address number of various terminal devices in the different data transmission network within the satellite; the 1553B bus network bus controller and the in-satellite terminal number field of the remote terminal comprise a sub-address field and an RT address field.
3. The communication system between the satellite-borne IP protocol network and the 1553B bus network according to claim 2, wherein in the communication mode between different bus controllers and remote terminals in the same 1553B bus network in the satellite, the data transmitting end and the receiving end are both 1553B bus network bus controllers or remote terminals, and the spacecraft identifier, the space subnet number, the space link number and the satellite-borne subnet number fields of the source IP address and the destination IP address in the IP packet header are given by the data transmitting end to a fixed characteristic value to represent default local network transmission; the source IP address in the IP data packet header and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet transmitting end, and the sub-address field is the sub-address number of the data packet transmitting definition in advance; the RT address field of the destination IP address in-satellite terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the pre-defined sub-address number of the data packet transmission; the source IP address in-satellite terminal coding sub-address field and the destination IP address in-satellite terminal coding sub-address field are consistent.
4. The communication system between a satellite-borne IP protocol network and a 1553B bus network according to claim 2, wherein in a communication manner between any network terminals of the same IP network in a satellite, both a data transmitting terminal and a receiving terminal are IP network terminals, and a spacecraft identifier of a source IP address and a destination IP address in an IP packet header, a space subnet number, a space link number and a satellite subnet number field are assigned by the data transmitting terminal to a fixed characteristic value, which indicates default to local network transmission; the source IP address and the destination IP address in the IP data packet header are defined by the IP network.
5. The communication system between the satellite-borne IP protocol network and the 1553B bus network according to claim 2, wherein in the communication mode between any bus controller or remote terminal of the satellite-borne 1553B bus network and any terminal of the satellite-borne IP network, the data transmitting terminal and the receiving terminal are all the terminals in the satellite, and the spacecraft identifier, the space subnet number and the space link number fields of the source IP address and the destination IP address in the IP packet header are given by the data transmitting terminal as fixed characteristic values, which represent default to the transmission in the satellite; the satellite-borne sub-network number fields of the source IP address and the destination IP address are given a predefined value by a data transmitting end so as to distinguish 1553B bus network from satellite-borne IP protocol network;
when any bus controller of the 1553B bus network and a remote terminal send data to any terminal of the star IP network, the data sending terminal is the 1553B bus network bus controller or the remote terminal, the source IP address in the IP data packet header and the RT address field of the number of the in-star terminal are the BC/RT address of the data packet sending terminal, and the sub-address field is the pre-defined sub-address number of the data packet sending; the data receiving end is an IP network terminal, and the number of the terminal in the satellite of the destination IP address in the packet head of the IP data packet is defined by the IP network;
when any terminal of the satellite-borne IP protocol network transmits data to any bus controller and remote terminal of the satellite 1553B bus network, the data transmitting terminal is an IP network terminal, and the number of the source IP address in the IP data packet header is defined by the IP network; the data receiving end is a 1553B bus network bus controller or a remote terminal, the RT address field of the destination IP address in-star terminal number in the IP data packet header is the BC/RT address of the data packet receiving end, and the sub-address field is the sub-address number which is defined in advance and is sent by the data packet.
6. The communication system between the on-board IP protocol network and the 1553B bus network according to claim 2, wherein in the communication mode between any bus controller of the in-satellite 1553B bus network, the remote terminal and any bus controller of the in-satellite 1553B bus network, the remote terminal, the inter-satellite communication is realized via an on-board gateway; the source IP address, the spacecraft identifier of the destination IP address and the satellite-borne subnet number in the IP data packet header are given a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite; the source IP address in the IP data packet header and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet transmitting end, and the sub-address field is the sub-address number of the data packet transmitting definition in advance; the RT address field of the destination IP address in-satellite terminal number is the BC/RT address of the data packet receiving end, and the sub-address field is the pre-defined sub-address number of the data packet transmission.
7. The communication system between a satellite-borne IP protocol network and a 1553B bus network according to claim 2, wherein in the manner of communication between any bus controller of the inter-satellite 1553B bus network, a remote terminal and any network terminal of his inter-satellite IP network, inter-satellite communication is achieved via a satellite-borne gateway; the source IP address, the spacecraft identifier of the destination IP address and the satellite-borne subnet number in the IP data packet header are given a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite;
when any bus controller of 1553B bus network and remote terminal send data to any terminal of other in-satellite IP network, the data sending terminal is 1553B bus network bus controller or remote terminal, the source IP address in the IP data packet header and the RT address field of the in-satellite terminal number are the BC/RT address of the data packet sending terminal, and the sub-address field is the pre-defined sub-address number for data packet sending; the data receiving terminal is an IP network terminal, and the number of the terminal in the satellite of the destination IP address in the IP data packet header is defined by the IP network.
When any terminal of the IP network sends data to any bus controller and remote terminal of the 1553B bus network in the star, the data sending terminal is the IP network terminal, and the number of the source IP address in the IP data packet header is defined by the IP network; the data receiving end is a 1553B bus network bus controller or a remote terminal, the RT address field of the destination IP address in-star terminal number in the IP data packet header is the BC/RT address of the data packet receiving end, and the sub-address field is the sub-address number which is defined in advance and is sent by the data packet.
8. The communication system between the satellite-borne IP protocol network and the 1553B bus network according to claim 2, wherein in the communication mode between any network terminal of the in-satellite IP network and any network terminal of the other in-satellite IP network, the inter-satellite communication is realized via a satellite-borne gateway; the source IP address, the spacecraft identifier of the destination IP address and the satellite-borne subnet number in the IP data packet header are given a predefined value by a data transmitting end so as to distinguish different satellites and networks in the satellite; the source IP address and the destination IP address in the IP data packet header are defined by the IP network.
9. The communication system between a satellite-borne IP protocol network and a 1553B bus network according to any one of claims 3-8, wherein when a bus controller or a remote terminal of the 1553B bus network is used as an IP network terminal to access the IP network, the bus controller or the remote terminal performs judgment of a destination IP address spacecraft identifier and a satellite-borne subnet number field of an IP data packet: if the spacecraft identifier and the satellite-borne subnet number field are fixed characteristic values, the data packet is transmitted in the local network; if the spacecraft identifier field is a fixed characteristic value, forwarding the data packet according to the satellite-borne subnet number field; if the spacecraft identifier and the satellite-borne subnet number field are predefined values, the data packet is forwarded to a satellite-borne gateway for further processing.
10. A method of communication between a satellite-borne IP protocol network and a 1553B bus network, wherein the communication is performed using the communication system between a satellite-borne IP protocol network and a 1553B bus network as claimed in any one of claims 1 to 9.
CN202310932247.6A 2023-07-26 2023-07-26 Communication method and system between satellite-borne IP protocol network and 1553B bus network Pending CN117060966A (en)

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