CN109525304A - Perceptual computing stores the integrated space intelligent network architecture - Google Patents
Perceptual computing stores the integrated space intelligent network architecture Download PDFInfo
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- CN109525304A CN109525304A CN201811488998.9A CN201811488998A CN109525304A CN 109525304 A CN109525304 A CN 109525304A CN 201811488998 A CN201811488998 A CN 201811488998A CN 109525304 A CN109525304 A CN 109525304A
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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
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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
- H04B7/18521—Systems of inter linked satellites, i.e. inter satellite service
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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
- H04B7/18584—Arrangements for data networking, i.e. for data packet routing, for congestion control
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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
- H04B7/18593—Arrangements for preventing unauthorised access or for providing user protection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a kind of perceptual computings to store the integrated space intelligent network architecture, it is addressed with equipment overall identification (E-GUID) and IP, it realizes compatible with IP network, and perception of content is then merged in data transmission, it realizes application and the cross-layer cooperated service of network, breaches simple function and the limitation in astro network that traditional IP address is identified as just address；Meanwhile space router can have perception of content ability, stored in storage inside and retrieve content, store transmission mode in net to realize, broken the end-to-end transmission mode of Traditional IP, effectively reduced propagation delay time, resource and energy consumption；Content safety is introduced in network message, constructs the Self-certified mechanism of network layer data, to realize in transmission process that data are credible and integrity verification, has been broken the end-by-end security mechanism of traditional IP data.
Description
Technical field
The present invention relates to computer networking technology Satellite Networking field more particularly to a kind of storage of perceptual computing are integrated
The space intelligent network architecture.
Background technique
With the fast development of Internet technology, traditional ground network solution based on TCP/IP architectural framework has been
Through the communication requirement that can better meet terrestrial interconnection net.However unlike traditional ground network, astro network has section
Point isomery, height of node movement, link change in time and space, the features such as space length is remote, propagation delay time is big, which dictates that astro network
Dynamic group net and the intermittent challenge of transmission can be faced.Due to traditional ground network based on TCP/IP architectural framework only with
Simple transmission is the limitation of core function, it is difficult to cope with the above-mentioned challenge that spatial network is faced.In this context, it answers
Innovative network architecture for astro network already becomes the hot fields of Present Global concern.
Traditional ground network, for core, for the purpose of simple transmission, is designed by IP address using according to end-to-end principle
TCP/IP architecture.Firstly, the architectural framework is mainly data-transformation facility and designs, it is suitable for ambulant scene
Answer poor, arrangement can bring Information locating and the problem of transmission efficiency is low under the higher scene of mobility, do one's best
Forwarding will lead to packet loss when breaking in a link, and intermittent link circuit resource utilization rate is low.Secondly, inter-satellite link is to astro network
Mobility more stringent requirements are proposed.Due to astro network topological structure dynamic change the characteristics of, lead to inter-satellite data
Transmission path frequent switching results even in path end to end and is not present, can not establish routed path, seriously destroy upper layer
The continuity of application service, so communication provides service well between the astro network architectural framework of IP based network is difficult to star
Quality.The safety that last astro network transmit data also proposed very high requirement, and the safety of tradition ground IP network
Means are substantially at passive response state, and to attack unaware, basic reason is IP address-based point to point link mode
It is merely able to provide end-by-end security channel, cannot achieve the personalized secure service for service and content.
In view of the above-mentioned problems, the solution of mainstream is using the DTN network system based on BP agreement at present.The network body
The problem of can solve intermittent connection, long delay to a certain extent is tied up to, but it is effective due to being difficult to carry out network state
It perceives and lacks unified content identification, therefore there is a problem of that router efficiency is low.And DTN network lacks mature congestion
Control and flow control mechanism, it is difficult to cope with network congestion problem.In addition, the security mechanism of DTN network still in research and it is complete
Among kind, there is also certain limitations in terms of the safety of data transmission.
Summary of the invention
The object of the present invention is to provide a kind of perceptual computings to store the integrated space intelligent network architecture (Space
Intelligent Network Architecture, SINA), the robustness of router efficiency and transmission link is improved, and
Security guarantee can be provided for space intelligent network.
The purpose of the present invention is what is be achieved through the following technical solutions:
The integrated space intelligent network architecture of a kind of perceptual computing storage, comprising: data are set in each satellite node
Service system, and the satellite control platform for communication and condition monitoring between coordination data service system modules；
Each satellite node realizes Satellite Networking in such a way that the space router in data service system is using autonomous learning, thus structure
Build astro network；
In each satellite node communication process, the data flow received is passed through by the space router in satellite node interior
Hold perception and distinguish different types of business datum, for data packet, the equipment using the source satellite node obtained in data packet is complete
Office mark E-GUID, safety check information and content information are sought after carrying out the verifying of content-level active safety using E- GUID
The mode of location realizes content intelligent storage and the forwarding of hop-by-hop；For request packet, according to content identification in local retrieval, according to
It is local whether to be stored with corresponding content-data packet to decide to continue with forwarding request packet or directly transmit corresponding content-data
Packet.
As seen from the above technical solution provided by the invention, it is sought with equipment overall identification (E-GUID) and IP
Location, realization is compatible with IP network, and perception of content is then merged in data transmission, realizes application and the cross-layer cooperated service of network, breaks through
The simple function and limitation in astro network that traditional IP address is identified as just address；Meanwhile space router
There can be perception of content ability, be stored in storage inside and retrieve content, store transmission mode in net to realize, broken tradition
The end-to-end transmission mode of IP, effectively reduces propagation delay time, resource and energy consumption；Content peace is introduced in network message
Entirely, the Self-certified mechanism for constructing network layer data to realize in transmission process that data are credible and integrity verification,
The end-by-end security mechanism of traditional IP data is broken.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is that a kind of perceptual computing provided in an embodiment of the present invention stores integrated space intelligent network architecture signal
Figure；
Fig. 2 is the structural schematic diagram of space router provided in an embodiment of the present invention；
Fig. 3 is route learning timing diagram provided in an embodiment of the present invention；
Fig. 4 is the logical architecture schematic diagram of space intelligent network provided in an embodiment of the present invention；
Fig. 5 is poor data transmission sub-service provided in an embodiment of the present invention business schematic diagram；
Fig. 6 is intelligent transportation process schematic of the space router provided in an embodiment of the present invention based on content identification；
Fig. 7 is that network mobility provided in an embodiment of the present invention supports schematic diagram；
Fig. 8 is content-level active safety schematic diagram provided in an embodiment of the present invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
Based on traditional TCP/IP ground network only using simple transmission as core, which is difficult to cope with spatial network institute
Node isomery, high-speed motion, link change in time and space and the propagation delay time faced the challenge such as big, the present invention propose that a kind of perception is counted
It calculates and stores the integrated space intelligent network architecture, fundamentally break through the single simple data transmission function of existing ground network
Can, meet space-based resource sharing network demand.Content name is dissolved into network message, so that router has perception of content
Ability, support the transmission service of content oriented；(turned by perception, routing and data by the way of content active push
Send out the cooperation of these modules and complete the work such as perception, routing update and the data forwarding of request packet content), change traditional network
Connection-oriented static routing transmission mode, while mobility support is provided, moreover it is possible to guarantee higher service quality；Pass through
" security domain " field (i.e. safety check information) is added in network message, by abilities such as the perception of router, calculating, in conjunction with
The network layer active safety mechanism of customization, realizes the network of the security targets such as the credibility, consistency, integrality of data message
Interior verifying, to provide security guarantee for spatial network；The transmission mechanism for taking hop-by-hop to confirm, can cope with high-speed motion band
The change in link quality come acutely waits challenge, reduces retransmission probability end to end, improves the robustness of transmission link.
As shown in Figure 1, for a kind of integrated space intelligent network architecture of perceptual computing storage provided by the invention, master
It include: setting data service system in each satellite node, and between coordination data service system modules
The satellite control platform of communication and condition monitoring；Each satellite node is by the space router in data service system using autonomous
The mode of study realizes Satellite Networking, to construct astro network；
In each satellite node communication process, the data flow received is passed through by the space router in satellite node interior
Hold perception difference different types of business datum and the equipment overall identification of the source obtained in data packet is utilized for data packet
E-GUID, safety check information and content information, after carrying out the verifying of content-level active safety, using the side of E-GUID addressing
Formula realizes content intelligent storage and the forwarding of hop-by-hop；For request packet, according to content identification in local retrieval, it is according to local
It is no to be stored with corresponding content-data packet to decide to continue with forwarding request packet or directly transmit corresponding content-data packet.
In the embodiment of the present invention, the data service system includes: sequentially connected application service platform, space router
With communication module；The application service platform provides upper layer application service, is responsible for connecting the management and industry of terminal with satellite node
Business data distributing；The communication module provides link layer data forwarding capability；The communication module include laser communication module with
Microwave communication module, is less than threshold value for data volume and requirement of real-time is passed higher than the data of setting value using laser communication module
It is defeated, threshold value and requirement of real-time are greater than for data volume and use microwave communication module transfer lower than the data of setting value.
As shown in Figure 1, further including ground installation, the ground installation includes: user terminal and Subscriber Management System；User
Terminal sends access request information to Subscriber Management System, after Subscriber Management System receives the registration of new user, by user terminal
Relevant information report to the space router in a certain satellite node so that user terminal access astro network；User terminal
With corresponding space router communication, to request associated traffic data.
In order to make it easy to understand, being described further below for above-mentioned framework provided in an embodiment of the present invention.
1, space router.
Space router is the core equipment of entire framework, and routing, perception of content calculating storage and data turn between providing star
Send out function.
As shown in Fig. 2, the space router specifically includes that star uplink module, content caching module, configuration management mould
Data link module between Routing Protocol Module and star between block, routing configuration module, networking configuration module, star；The star cochain
Data link module is sequentially connected between Routing Protocol Module and star between road module, star；Routing Protocol Module is also slow with content between star
Storing module connection；Also Routing Protocol Module is connect routing configuration module between configuration management module and star respectively；Networking configures mould
Also data link module is connect block between Routing Protocol Module and star between star respectively；Wherein:
Star uplink module, the adaptation for Routing Protocol between star and between should being transmitted by layer data；Star uplink module
As a channel between application layer data and star between Routing Protocol Module, star uplink module is corresponding carried out by layer data in
After holding perception, it will do it some pretreatments, such as cutting, addition header information, be transmitted further to Routing Protocol Module between star.
Routing Protocol Module between star, for Routing Protocol encapsulation, decapsulation and forwarding scheduling function between the star of business datum
Energy；The business datum includes application layer data and network layer data；
Content caching module is used for content caching and retrieval；
Configuration management module provides external inner parameter configuration interface；
The corresponding offer routing iinformation maintenance of routing configuration module, networking configuration module, laser and microwave link ginseng
Number configuration and management；The routing configuration module is also used to carry out the verifying of content-level active safety to data packet；
Data link module between star has been used for the management configuration to laser and microwave link, by laser communication module with
Microwave communication module realizes sending and receiving for network layer data grouping.
In the embodiment of the present invention, space router specific workflow, which is divided into, sends and receives two parts.Fig. 2 is seen also,
It is to be received by star uplink module, and other modules is cooperated to do subsequent processing (being detailed in transmitting portion) that data are routed on the star of upper layer,
The data that other space routers are sent are then laser communication module and microwave communication module data link module between star
It receives, and other modules is cooperated to do subsequent processing (being detailed in receiving portion).Data and other space routers are routed on the star of upper layer
Its payload of the data of transmission is business datum, and difference is, data are routed on the star of upper layer on application layer, other space roads
The data sent by device are in network layer.
1) transmitting portion.After star uplink module receives application layer data and pre-processed, assisted by being routed between star
Routing Protocol between application layer data progress star is packaged into network layer data, and query routing configuration module by view module, under calculating
One jumps satellite node address, the encapsulation of frame is carried out to data packet by data link module between star, further according to data volume and real-time
It is required that selection laser communication module or microwave communication module down hop satellite node transmission, i.e., for small data quantity, in real time
Property requires stringent business datum to be sent by microwave communication module, for the not high industry of big data quantity, requirement of real-time
Data of being engaged in pass through laser communication module transfer.
2) receiving portion.
Receiving portion herein is primarily referred to as being handled with request packet for the data packet received, is also related to later
The forwarding of data packet or request packet operates.
When space router in present satellites node receives the data flow of other space routers transmission, pass through content sense
Know the data category of determining data flow；Specifically:
A, for data packet, between star Routing Protocol Module extracted from data packet source equipment overall identification E-GUID,
Safety check information and content information, and the verifying of content-level active safety is carried out by routing configuration module: utilize safe school
It tests the authentication of information and E-GUID progress data packet, carry out the complete of data packet using safety check information and content information
Property verification and using safety check information and associated encryption proof of algorithm data packet confidentiality；If data packet passes through
The verifying of content-level active safety, then Routing Protocol Module judges whether the destination node of data packet is present satellites node between star,
If so, then forwarding the packet to the application service platform in present satellites node by space router；If it is not, then by number between star
Select laser communication module or microwave communication module that data packet is downward according to data volume and requirement of real-time according to link module
One jumps satellite node transmission, and by Routing Protocol Module between star by data pack buffer in local content caching module, and
It receives the confirmation that next satellite node returns and receives the corresponding data packet for deleting caching after information；If data packet does not pass through
The verifying of content-level active safety, then abandon.
B, for request packet, then content identification extracted by Routing Protocol Module between star and in local content caching module
In retrieved；If retrieving corresponding content-data packet, by data link module between star by corresponding content-data packet
It is sent to a satellite node (i.e. content active push)；If not retrieving corresponding content-data packet, by number between star
Request packet is forwarded to next satellite node according to link module.
Usually, request packet is generated by satellite itself or user terminal generates.
The space router that the present invention provides in real time breaks through the simple function of ground network data transmission, makes full use of sky
Between computing capability and built-in storage capacity built in routing node, realize content intelligent storage and the forwarding of hop-by-hop；Break biography
The transmission mode of system network end-to-end, uses in such a way that E-GUID is addressed, can cope with node isomerism, high dynamic and connection
The challenge such as intermittence；Efficient support space-based big data is obtained, handles and is shared, and provides security guarantee for spatial network.
2, route learning
In the embodiment of the present invention, Satellite Networking process uses self-studied ways completely.
As shown in figure 3, each satellite node periodically sends road to surrounding neighbours satellite node by microwave communication module
By learning SRLM packet, neighbours' satellite node receives route learning SRLM packet (Space Route- by microwave communication module
Learning Message) after, it is transmitted to local spatial router, then handled by space router, route learning SRLM
Packet namely Fig. 3 in SRLM message.
Space router in neighbours' satellite node calculates one hop link quality and path chain according to route learning SRLM packet
Then road quality decides whether to forward route learning SRLM packet again；If receiving the routing of source satellite node sending for the first time
SRLM packet is practised, then creates new list item in the routing table for the source satellite node, realizes the networking with source satellite node；If should
Route learning SRLM packet comes from optimal path, then updates local routing table, and modify the relevant information of route learning SRLM packet
After (TTL, link-quality, upper hop ID are changed to this satellite node), continue to broadcast corresponding route learning SRLM packet；
After source satellite node receives the study SRLM packet of single-hop neighbours' satellite node passback, according to route learning SRLM packet
Dropping packets after calculating one hop link quality；
Neighbours' satellite node of the route learning SRLM packet through repeatedly forwarding is received, then is counted according to route learning SRLM packet
It calculates one hop link quality, path link quality and updates and decide whether broadcast forwarding after local routing information again.
3, the mobility support of network
Assuming that user terminal accesses astro network by satellite node A, satellite node A sends related service to user terminal
Data；After a period of time, satellite node A is moved to other positions, and disconnects with user terminal, it is assumed that user terminal at this time
Astro network is accessed by satellite node C, then the not sent associated traffic data finished is transmitted to satellite node by satellite node A
C is forwarded to user terminal by satellite node C.
4, logical architecture
Logical architecture is as shown in figure 4, be divided into control plane and data plane.Plane is controlled by configuration management, routing, strategy
And the modules such as service model composition；Data plane is stored by content and is formed with two modules of data forwarding；Plane is controlled to combine
Perception, name and the security module of cross-layer provide basic service support with data forwarding for the content storage of data plane.Its
In, it controls the service model of plane and configuration management is all located in configuration management module shown in Fig. 2；Routing is located at routing configuration
Module, strategy are located at networking configuration module；Safety, name are realized jointly by routing module between star and routing configuration module；Perception
By Routing Protocol Module and networking configuration module are realized between data link module, star between star；Content is stored by content caching mould
Block realizes that data forwarding is by data link module is realized between Routing Protocol Module and star between star uplink module, star.
1) data plane be mainly responsible for data forwarding and content storage, while also rely on environment sensing, naming mechanism and
Data safety, mainly comprising content storage and two modules of data forwarding, 1. content is stored: being stored in space S INA framework
Storage mainly includes the hop-by-hop route-caching to the data packet of transmission, and stores to the distributed collaboration of key content.Hop-by-hop is deposited
When storage forwarding refers to all data hop-by-hop transmits in space S INA network, space S INA router carries out the data packet of transmission
It deletes after ensuring that next-hop is properly received the data packet data cached temporal cache；If next-hop is without just
True received data packet then carries out re-transmission or heavy-route using data cached.The mechanism can guarantee the reliable transmission of data packet,
And the route learning more new function of the routing module in control plane is combined, the mobility for solving network node or terminal is asked
Topic.Certainly according to application demand (such as streaming media), it also can choose and caching confirmation do not carried out to guarantee in real time to data packet
Property.Distributed collaboration storage is mainly using the storage capacity of space S INA router, to the data content in transmission according to one
Fixed strategy net interior storage, for example, can according to the cold and hot degree of data content by hotter content caching in network node
In, realize in the net of content requests/path in respond, reduce and route and communicate end to end, and then reduce and communicate and open between star
Pin；2. data forwarding: when space S INA node receives one comprising purpose E-GUID data packet, being solved to data packet head
Purpose E-GUID therein is analysed and extracted, is then matched with the list item in E-GUID forwarding table.If in certain list item
Purpose E-GUID is identical, then it is assumed that matches with this route entry, and data are forwarded a packet to corresponding next-hop.If failed
Match, then abandons real time traffic data packet；To long delay tolerance service data, present node can be buffered in so as to subsequent forwarding.
Control plane, which is mainly responsible for, to be managed and controls to the configuration of space S INA and strategy, and main includes configuration pipe
The modules such as reason, routing policy and service model.1. configuration management: being responsible for the basic configuration, network-like of management network bottom layer link
State monitors configuration, remote control interface etc.；2. routing: be responsible for route discovery, update and to data surface E-GUID forwarding-table item into
Row control；3. strategy: module information and application demand according to collected by environment sensing selects reasonable routing forwarding to control
Strategy (such as energy consumption perception route, network utility maximize routing, delay constraint routing), and by strategy be converted into it is executable
Routing rule transfers to routing module to be configured and update forwarding table；4. service model: in order to guarantee that upper layer application is different
Service quality (QoS) demand, including real-time demand, reliability requirement etc., the module will design different service modes for
Selection, to guarantee to realize the differentiated service to different application.
In addition, there are also the perception of astride hierarchy, name and security modules between control plane and data plane.Wherein, feel
Know that module is responsible for the environmental datas such as collection of link state, track location information, transmission rate；Name module maintains equipment and interior
The naming rule of appearance is responsible for the dynamic naming of content and the preservation of device name；Security module is responsible for the signaling peace of space S INA
Complete and data safety.
In above scheme of the present invention, it is addressed with equipment overall identification (E-GUID) and IP, realization is compatible with IP network,
And perception of content is then merged in data transmission, realizes application and the cross-layer cooperated service of network, breach traditional IP address as just
The simple function of address mark and the limitation in astro network；Meanwhile space router can have perception of content ability,
It is stored in storage inside and retrieves content, stored transmission mode in net to realize, broken the end-to-end transmission mode of Traditional IP, had
Effect reduces propagation delay time, resource and energy consumption；Content safety is introduced in network message, constructs network layer data oneself
Authentication mechanism to realize in transmission process that data are credible and integrity verification, has broken traditional IP data
End-by-end security mechanism.
It is illustrated below with reference to some specific application scenarios.
1, differential service
Since application scenarios, type of business and user demand etc. have differences, different service conversations is to network transmission
QoS requirement be also not quite similar.Therefore it realizes according to business, content, the perception of user behavior and identification to transmission
The dynamic select and adaptation of mode, thus the resource utilization that service quality is effectively ensured, improves astro network.Specific implementation side
Formula is as shown in Figure 5: when 1. data flow is transmitted by satellite node, first passing through an analyzer and (is located in the router of space
Star uplink module), analyzer is that the content information for being included, a business information etc. are perceived to application layer traffic-the
With the software module of classification；2. different types of data service is distinguished by perception and classification to application layer traffic-the, including
Real time business and non-real-time service, text data and stream medium data etc., and be that data flow selection is suitable according to classification results
Transmission mode；3. scheduler (data link module between the star in the router of space) is used as network sending module, by basis
Different scheduling methods and routing policy send output to next-hop or are locally stored, and distinguish data such as by scheduler
What is forwarded, and can be divided into microwave link, laser link or be continued the transmit queue different according to the different instructions of priority.
2, based on the intelligent transportation of content identification
Space router supports the intelligent transportation based on content identification, it is assumed here that related content legality.Such as Fig. 6 institute
Show: 1. satellite C of the satellite node A into network sends request packet P1, and to request content CID1, request packet P1, which is arrived first at, to be defended
Star B；2. after satellite node B receives request packet P1, the space router of satellite node B is according to content identification in local cache
It is the copy of content of CID1 that whether retrieval, which has content identification,.The cache resources in satellite node B with CID1 are retrieved, then satellite
The content resource that content identification is CID1 is directly sent to satellite node A by node B, and is stopped forwarding to satellite node C and be requested
Wrap P1；3. request packet P1 is transmitted to satellite if not retrieving the cache resources that content identification is CID1 in satellite node B
Node C；4. after satellite node C receives request packet P1, the content-data that content identification is CID1 is sent to satellite node B；⑤
After satellite node B receives volume of data packet, these data packets source address having the same and destination address are parsed, is passed through
It is after the verifying of content-level active safety that the polymerization of these packet encapsulations is blocking, and be stored in local cache；6. satellite node B will
It polymerize blocking data forwarding and gives satellite node A.
3, the mobility support of space S INA network
Astro network has high dynamic, and ground based terminal access astro network can have mobility problem, astro network number
As shown in Figure 7 according to transmission mobility support: 1. terminal accesses space-based network by satellite node A, and satellite node A is sent out to user terminal
Send data；2. satellite mobility causes the space-based network access point of user terminal to be switched to satellite node C, straight with satellite node A
Disconnection is connect in succession；3. the data that satellite node A has not been forwarded are by satellite node C, terminal continues to forward to the ground, satellite node C
Data cached packet is deleted after receiving the confirmation message of terminal.
4, content-level active safety
The citing of content-level active safety is as shown in Figure 8: 1. after a satellite node receives data packet, utilizing its content sense
Know ability, obtains source identity information (E-GUID), safety check information (security domain) and content information；2. passing through customization
Safety verification scheme realize the active safety of content-level, i.e., the authentication of data packet is realized using security domain and E-GUID；
3. realizing the completeness check of data packet using security domain and content information；4. ensuring to count using security domain and associated encryption algorithm
According to the confidentiality of packet.
Only after a data packet has passed through the content-level active safety verifying of router, the road this data packet Cai Huibei
It is received by device and carries out subsequent forwarding operation；And if the safety verification of the data packet does not pass through, which can be routed
Device abandons.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (8)
1. a kind of perceptual computing stores the integrated space intelligent network architecture characterized by comprising in each satellite node
Data service system, and the satellite control for communication and condition monitoring between coordination data service system modules are set
Platform processed；Each satellite node realizes satellite group in such a way that the space router in data service system is using autonomous learning
Net, to construct astro network；
In each satellite node communication process, content sense is passed through to the data flow received by the space router in satellite node
Know that the different types of business datum of difference utilizes the equipment overall situation mark of the source satellite node obtained in data packet for data packet
E-GUID, safety check information and content information are known, after carrying out the verifying of content-level active safety, using the side of E-GUID addressing
Formula realizes content intelligent storage and the forwarding of hop-by-hop；For request packet, according to content identification in local retrieval, it is according to local
It is no to be stored with corresponding content-data packet to decide to continue with forwarding request packet or directly transmit corresponding content-data packet.
2. a kind of perceptual computing according to claim 1 stores the integrated space intelligent network architecture, which is characterized in that
The data service system includes: sequentially connected application service platform, space router and communication module；
The application service platform provides upper layer application service, is responsible for connecting with satellite node under the management and business datum of terminal
Hair；The communication module provides link layer data forwarding capability；
The communication module includes laser communication module and microwave communication module, is less than threshold value and requirement of real-time for data volume
Data higher than setting value use laser communication module transfer, are greater than threshold value for data volume and requirement of real-time is lower than setting value
Data use microwave communication module transfer.
3. a kind of perceptual computing according to claim 2 stores the integrated space intelligent network architecture, which is characterized in that
The space router includes: that star uplink module, content caching module, configuration management module, routing configuration module, networking are matched
Set between module, star data link module between Routing Protocol Module and star；Routing Protocol mould between the star uplink module, star
Data link module is sequentially connected between block and star；Routing Protocol Module is also connect with content caching module between star；Routing configuration mould
Also Routing Protocol Module is connect block between configuration management module and star respectively；The networking configuration module also Routing Protocol between star respectively
Data link module connects between module and star；Wherein:
Star uplink module, for the adaptation between star between Routing Protocol and application-layer data transmission, by pretreated application
Layer data is transferred to Routing Protocol Module between star；
Routing Protocol Module between star, for Routing Protocol encapsulation, decapsulation and forwarding scheduling feature between the star of business datum；Institute
Stating business datum includes application layer data and network layer data；
Content caching module is used for content caching and retrieval；
Configuration management module provides external inner parameter configuration interface；
The corresponding offer routing iinformation maintenance of routing configuration module, networking configuration module, laser and microwave link parameter are matched
It sets and manages；The routing configuration module is also used to carry out the verifying of content-level active safety to data packet；
Data link module between star has been used for the management configuration to laser and microwave link, has passed through laser communication module and microwave
Communication module realizes sending and receiving for network layer data grouping.
4. a kind of perceptual computing according to claim 3 stores the integrated space intelligent network architecture, which is characterized in that
When space router in present satellites node receives the data flow of other space routers transmission, number is determined by perception of content
According to the classification of stream；
For data packet, between star Routing Protocol Module from data packet the equipment overall identification E-GUID of extraction source satellite node,
Safety check information and content information, and the verifying of content-level active safety is carried out by routing configuration module: utilize safe school
It tests the authentication of information and E-GUID progress data packet, carry out the complete of data packet using safety check information and content information
Property verification and using safety check information and associated encryption proof of algorithm data packet confidentiality；If data packet passes through
The verifying of content-level active safety, then Routing Protocol Module judges whether the destination node of data packet is present satellites node between star,
If so, then forwarding the packet to the application service platform in present satellites node by space router；If it is not, then by number between star
Select laser communication module or microwave communication module that data packet is downward according to data volume and requirement of real-time according to link module
One jumps satellite node transmission, and by data link module between star by data pack buffer in local content caching module, and
It receives the confirmation that next satellite node returns and receives the corresponding data packet for deleting caching after information；If data packet does not pass through
The verifying of content-level active safety, then abandon；
For request packet, then content identification is extracted by Routing Protocol Module between star and carried out in local content caching module
Retrieval；If retrieving corresponding content-data packet, corresponding content-data packet is sent to by data link module between star
A upper satellite node；If not retrieving corresponding content-data packet, request packet is forwarded by data link module between star
To next satellite node.
5. a kind of perceptual computing according to claim 4 stores the integrated space intelligent network architecture, which is characterized in that
After star uplink module receives application layer data and is pre-processed, by Routing Protocol Module between star by application layer data into
Routing Protocol is packaged into network layer data, and query routing configuration module between planet, next-hop satellite node address is calculated, by star
Between data link module to data packet carry out frame encapsulation, further according to data volume and requirement of real-time selection laser communication module or
The transmission of person's microwave communication module down hop satellite node.
6. a kind of perceptual computing according to claim 1 stores the integrated space intelligent network architecture, which is characterized in that
It further include ground installation, the ground installation includes: user terminal and Subscriber Management System；
User terminal sends access request information to Subscriber Management System, will after Subscriber Management System receives the registration of new user
The relevant information of user terminal reports to the space router in a certain satellite node, so that user terminal accesses astro network；
User terminal and corresponding space router communication, to request associated traffic data.
7. a kind of perceptual computing according to claim 1 stores the integrated space intelligent network architecture, which is characterized in that
Assuming that user terminal accesses astro network by satellite node A, satellite node A sends associated traffic data to user terminal；One
After the section time, satellite node A is moved to other positions, and disconnects with user terminal, it is assumed that user terminal is by defending at this time
Star node C accesses astro network, then the not sent associated traffic data finished is transmitted to satellite node C by satellite node A, by defending
Star node C is forwarded to user terminal.
8. a kind of perceptual computing according to claim 2 stores the integrated space intelligent network architecture, which is characterized in that
Space router realizes that the process of Satellite Networking is as follows by the way of autonomous learning:
Each satellite node periodically sends route learning SRLM packet to surrounding neighbours satellite node by microwave communication module, adjacent
It occupies after satellite node receives route learning SRLM packet by microwave communication module, is transmitted to local spatial router, then by sky
Between router handled；
Space router in neighbours' satellite node calculates one hop link quality and path link matter according to route learning SRLM packet
Amount, then decides whether to forward route learning SRLM packet again；If receiving the route learning of source satellite node sending for the first time
SRLM packet then creates new list item in the routing table for the source satellite node, realizes the networking with source satellite node；If the routing
Learn SRLM packet from optimal path, then after the relevant information for modifying route learning SRLM packet, continues to broadcast corresponding routing
Practise SRLM packet；
After source satellite node receives the study SRLM packet of single-hop neighbours' satellite node passback, calculated according to route learning SRLM packet
Dropping packets after one hop link quality；
Neighbours' satellite node of the route learning SRLM packet through repeatedly forwarding is received, then is calculated according to route learning SRLM packet single
Hop link quality, path link quality simultaneously update and decide whether broadcast forwarding after local routing information again.
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