CN109302226A - Incorporate network communication method - Google Patents
Incorporate network communication method Download PDFInfo
- Publication number
- CN109302226A CN109302226A CN201710605672.9A CN201710605672A CN109302226A CN 109302226 A CN109302226 A CN 109302226A CN 201710605672 A CN201710605672 A CN 201710605672A CN 109302226 A CN109302226 A CN 109302226A
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- network
- spacecraft
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Classifications
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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
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
- H04B7/1858—Arrangements for data transmission on the physical system, i.e. for data bit transmission between network components
-
- 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
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
- H04B7/18586—Arrangements for data transporting, e.g. for an end to end data transport or check
-
- 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
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2212/00—Encapsulation of packets
Abstract
The present invention provides a kind of Incorporate network communication methods to carry out data communication inside spacecraft and ground network and between the link of the world for using world gateway.This method comprises: configuring spacecraft gateway in spacecraft network and configuring gateway station in ground network；In spacecraft network and ground network, different data link layer protocols and different physical layer protocol are configured, to execute the data communication inside spacecraft network and ground network respectively；More than the network layer of world link, the data communication between the link of the world is executed using Internet protocol mode.Therefore, through the invention, realize the integrated design of spacecraft Yu ground-based computer IP network, spaceborne device can directly be operated by computer network on ground, especially testing equipment facilitates test to carry out, in addition for manned spacecraft, spacefarer can access ground network by means such as laptops, and spacefarer is facilitated to contact with surface personnel or household.
Description
Technical field
The present invention relates to space communication fields, more particularly to the gateway skill of spacecraft network and ground-based computer network
Art, more particularly, to a kind of Incorporate network communication method, for using world gateway, spacecraft network internal,
Data communication is carried out between the link of inside the ground network and world.
Background technique
With the development of computer networking technology, computer network develops into only from initial education and scientific research network
Inferior to the second-biggest-in-the-world network of telephone network, and gradually penetrate into people's lives, study and work.Computer network,
Especially transmission control protocol/internet protocol (Transfer Control Protocol/Internet Protocol, below
Referred to as TCP/IP) network, have become the blank of global information infrastructure, in order to realize information sharing, various machines
Structure has set up the Ethernet of oneself.
The computer system that interiors of products uses on present spacecraft is more and more, but there is presently no can be by spacecraft
On computer network and ground-based computer network connection gateway, without really realize Incorporate computer network, boat
Its member really realizes not yet connects ground-based computer network on spacecraft.
Summary of the invention
In order to solve a day interconnection problems for space computer network and ground-based computer network, the present invention is according to spacecraft
The characteristics of communicating with ground system proposes one and is suitable for the world gateway approach that spacecraft is connect with ground system, pass through
Transparent forwarding IP packet in this world, to realize network interworking in this world.
The present invention provides a kind of Incorporate network communication methods, for using world gateway, in spacecraft network
Data communication is carried out inside internal, ground network and between the link of the world.Method includes the following steps: step 1, in space flight
Spacecraft gateway is configured in device network and gateway station is configured in ground network；Step 2, on spacecraft network and ground
In network, different data link layer protocols and different physical layer protocol are configured, to execute spacecraft network and ground respectively
Data communication inside torus network；And step 3 executes day using Internet protocol mode more than the network layer of world link
Data communication between ground link.
Specifically, step 1 includes: to configure interchanger, hotspot, spacecraft gateway, network in spacecraft network
Video camera, wireless camera and personal computer；And in ground network, gateway station and ground terminal are configured,
In, interchanger is Ethernet switch, and ground network is ground observing and controlling communication computer network.
Extraly, step 1 can also include: in Incorporate network, using TCP/IP structure, to various communications
Data carry out layered shaping, wherein layered shaping be 5 layer datas handle and each layer include application layer, transport layer, network layer,
Data link layer and physical layer.
In addition, being executed in step 2: inside spacecraft network and ground network, using data link layer or network layer
Execute data communication.
Step 3 includes: on the chain road of the world, when sending data to second terminal from first terminal, by the IP packet of data
It is sent to first terminal gateway；First terminal gateway identifies the IP address in IP packet, and judges the ownership terminal of IP address；When
When IP address belongs to second terminal, first terminal gateway is packaged IP packet, obtains protocol data；And pass through day ground chain
Road, by protocol data transmission to second terminal.
Preferably, in step 3, the step of encapsulation includes: the IP that a network Packet type for identification is connect for IP cladding
Packet extension header；Data packet initialization after multiple connection is packaged as packaging protocol Data Unit；After multiplexing, by multiple packets
Dress protocol Data Unit is packaged as multichannel protocol Data Unit；In multichannel protocol Data Unit, the transmission of world link is added
Frame head, to obtain protocol data.
Extraly, after second terminal receives protocol data, second terminal gateway is unpacked to parse IP packet, and root
According to the IP address in IP packet, IP packet is sent to ground terminal.
In step 3, when IP address belongs to first terminal, in the buffer area of first terminal, IP address pair is searched
The Media Access Control address answered, so that data are directly forwarded in first terminal terminal device relevant to IP address.
Specifically, first terminal be spacecraft network or ground network and second terminal be accordingly ground network or
Spacecraft network.
In addition, in the present invention, in order to ensure the network security of spacecraft, being arranged on the gateway station of ground network anti-
Wall with flues.
Therefore, through the invention, the integrated design of spacecraft Yu ground-based computer IP network is realized, it can be logical on ground
It crosses computer network and directly operates spaceborne device, especially testing equipment, and can be by spaceborne scientific experimentation equipment
It combines as a whole in ground experiment room equipment, facilitates test to carry out, in addition for manned spacecraft, spacefarer can pass through notebook
The means such as computer access ground network, and spacefarer is facilitated to contact with surface personnel or household.
Detailed description of the invention
Fig. 1 is the topology diagram of the Incorporate IP network of specific embodiment according to the present invention；
Fig. 2 is the schematic diagram of the protocol architecture of specific embodiment according to the present invention；
Fig. 3 is the schematic diagram of the conveying flow of the packet of network in this world of specific embodiment according to the present invention；And
Fig. 4 diagrammatically illustrates the transformat of the packet of network in this world of specific embodiment according to the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in detail.
In general, spacecraft Incorporate network consists of three parts: spacecraft subnet, ground network and connection two
The world link of a network, wherein spacecraft subnet is by Ethernet switch, hotspot, world gateway, web camera, nothing
Line video camera, personal computer composition；Ground network is made of ground observing and controlling communication computer network；World chain routes spacecraft
Communication equipment composition between ground.
Network communication between the network communications of spacecraft internal network devices, ground system internal unit passes through interchanger
It completes, (two layers) of link layer exchanges can be used, (three layers) of network layer exchanges also can be used.
It is characteristic of the invention that the IP package transmission method between the world.Due to being different subnet between the world, to realize
Network Isolation also simplifies the data transmission in the world simultaneously, in the transmission for only carrying out IP packet in this world.In spacecraft and ground network
Inside it is respectively provided with gateway.When spacecraft equipment needs to send data to ground, IP packet is sent to spacecraft gateway, gateway identification
After destination address is ground IP out, one Internet protocol packet extended head (referred to as IPE) of multiple connection, for identifying network packet
Type, and it is packaged as packaging protocol Data Unit (referred to as EPDU), it is being (the letter of multichannel protocol Data Unit by multiplexing
Referred to as MPDU), in addition by world link transmission to ground after the link transmission frame head of the world, gateway station completion is unpacked accordingly
Work, after parsing IP packet, according to purpose IP address, is sent to relevant device for the IP.
It will be appreciated that ground installation transmission IP packet is same as described above to the process of spacecraft equipment.
A specific embodiment of the invention is discussed in detail below with reference to Fig. 1-Fig. 4.Specifically, Fig. 1 is Incorporate
Change the topology diagram of IP network, Fig. 2 is the schematic diagram of protocol architecture, and Fig. 3 is that the conveying flow of network packet shows in this world
It is intended to, Fig. 4 diagrammatically illustrates the transformat of network packet in this world.
As shown in Figure 1, spacecraft Incorporate network consists of three parts: spacecraft subnet, ground network, Yi Jilian
Connect the world link of two networks.Wherein, spacecraft subnet is by Ethernet switch, hotspot, world gateway, network shooting
The network equipments such as machine, wireless camera, personal computer composition；Ground network is made of ground observing and controlling communication computer network；
World chain routes the communication equipment between spacecraft and ground and forms.
Spacecraft Incorporate network uses the TCP/IP architecture of standard, carries out at 5 layer datas to user data
Reason.As shown in Fig. 2, specific protocol stack structure is application layer, transport layer, network layer, data link layer, physical layer respectively.It answers
It include realtime transmission protocol RTP with layer, agreement NTP when school, what Network Management Protocols SNMP agreement and personal computer were supported
The agreements such as WWW http protocol, file transmission File Transfer Protocol, Email SMTP, directly can provide service for user.Transport layer
Support connection-oriented transmission control protocol TCP and connectionless User Datagram Protocol UDP, between user terminal it is different into
Journey provides communication service.Network layer supports IP agreement, Internet Control Message Protocol ICMP and Address Resolution Protocol ARP.Data-link
Road floor supports Ethernet protocol as defined in IEEE802.3, realizes the wire communication of network in spacecraft, supports IEEE802.11 rule
Fixed WiFi agreement realizes the wireless communication of network in spacecraft.
The interaction of the spacecraft network equipment is realized by interchanger.Pass through spanning tree algorithm (RSTP association inside interchanger
View) establish the opposite joining relation table (forwarding table) of each catv terminal physical address (MAC Address) Yu exchange interface number, the forwarding
Table user's mac frame real-time update based on the received, it is ensured that the timeliness of data exchange.It catv terminal, world gateway and wirelessly connects
Access point supports ARP protocol, and in each terminal inner Jun Youyige arp cache area, according to ARP protocol, each terminal is slow at this
Deposit the correspondence table for setting up an IP address and MAC Address, and can real-time update, according to the correspondence table, the spacecraft network equipment
Achievable IP data packet communication.
The network layer of ground network also uses IP agreement, but link layer and the compatible IEEE802.3 Ethernet of physical layer,
The LAN protocols such as IEEE802.4 token-bus network, IEEE802.5 token-ring network, in order to realize spacecraft subnet and terrestrial network
The interconnection of network needs to establish world gateway.As indicated at 3, communication process in this world is by explanation specific as follows.
When spaceborne catv terminal a needs are communicated with ground based terminal b, catv terminal a is by purpose IP address (ground
The IP address of terminal b) and subnet mask progress with operation, network number is obtained, if network number is spacecraft subnet, directly
The corresponding MAC Address of the IP is searched in equipment arp cache area, is directly forwarded, and if not this spacecraft subnet, then will
The IP packet is issued default gateway (spacecraft gateway), with having the MAC of default gateway in the arp cache area of each network terminal
Location.
After spacecraft gateway receives IP packet, its purpose IP address is judged, if purpose IP address is not belonging to this boat
Its device subnet will be sent to gateway station after the IP encapsulation.As shown in figure 4, showing the specific encapsulation process of IP packet.It is first
First, IP cladding is met into IP packet extended head (IPE), for identifying the type of network packet, is then packaged as packaging protocol data
Unit (EPDU) is multichannel protocol Data Unit (MPDU) using multiplexing business multiple connection, in addition world link transmission frame
Pass through world link transmission to ground after head.
Gateway station completes work of unpacking accordingly, parses IP packet, the IP is sent to correlation according to purpose IP address
Ground installation.When ground based terminal b needs to send data to spacecraft catv terminal a data packet, using opposite process.
After the gateway of the world, spacecraft subnet and ground network can be assisted using different data link layer and physical layer
View, it is only necessary to be all made of IP agreement more than network layer in this world.It, can basis in view of the safety of spacecraft network
Firewall is arranged in gateway station in situation, can be in the network security for ensuring spacecraft.
In conclusion the present invention realizes the integrated design of spacecraft Yu ground-based computer IP network, it can be logical on ground
It crosses computer network and directly operates spaceborne device, especially testing equipment.Can by spaceborne scientific experimentation equipment with
In ground experiment room, equipment combines as a whole, and test is facilitated to carry out, and in addition for manned spacecraft, spacefarer can pass through notebook electricity
The means such as brain access ground network, and spacefarer is facilitated to contact with surface personnel or household.
It is not specified in the present invention and partly belongs to techniques known.
Claims (10)
1. a kind of Incorporate network communication method, for using world gateway, in spacecraft network internal, ground network
Data communication is carried out between portion and world link, which comprises the following steps:
Step 1 configures spacecraft gateway in the spacecraft network and configures gateway station in the ground network；
Step 2 configures different data link layer protocol and different in the spacecraft network and the ground network
Physical layer protocol, to execute the data communication inside the spacecraft network and the ground network respectively；And
Step 3 executes the number between the world link using Internet protocol mode more than the network layer of the world link
According to communication.
2. Incorporate network communication method according to claim 1, which is characterized in that the step 1 includes:
In the spacecraft network, configuration interchanger, hotspot, spacecraft gateway, web camera, wireless camera,
And personal computer；And
In the ground network, the gateway station and ground terminal are configured,
Wherein, the interchanger is Ethernet switch, and the ground network is ground observing and controlling communication computer network.
3. Incorporate network communication method according to claim 2, which is characterized in that the step 1 further include:
In the Incorporate network, using transmission control protocol/internet protocol structure, various communication datas are divided
Layer processing,
Wherein, the layered shaping is that 5 layer datas are handled and each layer includes application layer, transport layer, network layer, data link
Layer and physical layer.
4. Incorporate network communication method according to claim 3, which is characterized in that hold in the step 2
Row:
Inside the spacecraft network and the ground network, using described in the data link layer or network layer execution
Data communication.
5. Incorporate network communication method according to claim 3, which is characterized in that the step 3 includes:
On world chain road, when sending data to second terminal from first terminal, by the Internet protocol packet of the data
It is sent to first terminal gateway；
The first terminal gateway identifies the internet protocol address in the Internet protocol packet, and with judging the Internet protocol
The ownership terminal of location；
When the internet protocol address belongs to the second terminal, the first terminal gateway to the Internet protocol packet into
Row encapsulation, obtains protocol data；And
By the world link, by the protocol data transmission to the second terminal.
6. Incorporate network communication method according to claim 5, which is characterized in that in the step 3, envelope
The step of dress includes:
The Internet protocol packet extension header of a network Packet type for identification is connect for Internet protocol cladding；
Data packet initialization after multiple connection is packaged as packaging protocol Data Unit；
After multiplexing, multiple packaging protocol Data Units are packaged as multichannel protocol Data Unit；
In the multichannel protocol Data Unit, the transmission frame head of the world link is added, to obtain the protocol data.
7. Incorporate network communication method according to claim 5, which is characterized in that the step 3 further include:
After the second terminal receives the protocol data, second terminal gateway is unpacked to parse the Internet protocol
Packet；And
According to the internet protocol address in the Internet protocol packet, the Internet protocol packet is sent to the ground based terminal and is set
It is standby.
8. Incorporate network communication method according to claim 5, which is characterized in that in the step 3, when
When the internet protocol address belongs to the first terminal, in the buffer area of the first terminal, the internet association is searched
The corresponding Media Access Control address in address is discussed, so that data are directly forwarded in the first terminal and the Internet protocol
The relevant terminal device in address.
9. Incorporate network communication method according to claim 5, which is characterized in that the first terminal is described
Spacecraft network or the ground network and the second terminal are accordingly the ground network or the spacecraft net
Network.
10. Incorporate network communication method according to claim 1, which is characterized in that further include:
On the gateway station of the ground network, firewall is set, so that it is guaranteed that the network security of the spacecraft.
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| CN201710605672.9A CN109302226A (en) | 2017-07-24 | 2017-07-24 | Incorporate network communication method |
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| CN201710605672.9A CN109302226A (en) | 2017-07-24 | 2017-07-24 | Incorporate network communication method |
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Family
ID=65167446
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Cited By (6)
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| CN110351151A (en) * | 2019-07-30 | 2019-10-18 | 北京空间技术研制试验中心 | A kind of Incorporate network management based on SNMP |
| CN110445527A (en) * | 2019-07-22 | 2019-11-12 | 北京空间技术研制试验中心 | Network-based spacecraft strange land TTC channel wireless test method |
| CN111163106A (en) * | 2020-01-02 | 2020-05-15 | 上海航天测控通信研究所 | High-speed network preprocessing device based on world gateway |
| CN111770155A (en) * | 2020-01-03 | 2020-10-13 | 中国人民解放军63920部队 | Data processing method, device, storage medium and processor |
| CN112422386A (en) * | 2020-11-16 | 2021-02-26 | 中国运载火箭技术研究院 | Flight control system and communication method thereof |
| CN112910986A (en) * | 2021-01-28 | 2021-06-04 | 浙江大华技术股份有限公司 | Network video recorder channel management method and network video recorder |
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| CN110445527A (en) * | 2019-07-22 | 2019-11-12 | 北京空间技术研制试验中心 | Network-based spacecraft strange land TTC channel wireless test method |
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| CN111770155A (en) * | 2020-01-03 | 2020-10-13 | 中国人民解放军63920部队 | Data processing method, device, storage medium and processor |
| CN111770155B (en) * | 2020-01-03 | 2023-03-24 | 中国人民解放军63920部队 | Data processing method, device, storage medium and processor |
| CN112422386A (en) * | 2020-11-16 | 2021-02-26 | 中国运载火箭技术研究院 | Flight control system and communication method thereof |
| CN112910986A (en) * | 2021-01-28 | 2021-06-04 | 浙江大华技术股份有限公司 | Network video recorder channel management method and network video recorder |
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Application publication date: 20190201 |