CN112929420A - Shipborne universal servo tracking system in motion - Google Patents
Shipborne universal servo tracking system in motion Download PDFInfo
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- CN112929420A CN112929420A CN202110091479.4A CN202110091479A CN112929420A CN 112929420 A CN112929420 A CN 112929420A CN 202110091479 A CN202110091479 A CN 202110091479A CN 112929420 A CN112929420 A CN 112929420A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1023—Server selection for load balancing based on a hash applied to IP addresses or costs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/955—Retrieval from the web using information identifiers, e.g. uniform resource locators [URL]
- G06F16/9566—URL specific, e.g. using aliases, detecting broken or misspelled links
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- 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
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1014—Server selection for load balancing based on the content of a request
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1021—Server selection for load balancing based on client or server locations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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Abstract
The invention relates to the technical field of communication-in-motion systems, in particular to a shipborne universal servo tracking system in motion. The method comprises the following implementation processes of control and content push: when a user on the ship clicks a content URL on a website page, the URL is analyzed by a DNS system integrated in a content server deployed on the ship; sending a URL access request to a shipboard content server; the DNS system finally gives the resolution right of the domain name to a data center pointed by the CNAME; a DNS server of the data center CDN returns the IP address of the global load balancing equipment of the CDN to a content server on the ship; initiating a content URL access request to global load balancing equipment of a data center CDN; according to the IP address of the user and the content URL requested by the user; then returning the IP address of the server to the user; and initiating a request to the cache server to transmit the required content to the user terminal. The invention optimizes the business experience of the marine user for obtaining the internet service content and other technical problems by combining the star network characteristics of the satellite communication system.
Description
Technical Field
The invention relates to the technical field of communication-in-motion systems, in particular to a shipborne universal servo tracking system in motion.
Background
The star network satellite system is a bi-directional, bandwidth IP satellite access network. The system combines a broadband outbound data channel and a high-speed backhaul channel, and can operate on the transponder resources of any fixed-orbit satellite. However, the bandwidth occupation of the current satellite wireless link resources is large, the utilization rate of the system resources is not high enough, and the business experience of acquiring internet service contents for marine users is still to be improved. Based on the above, a shipborne universal servo tracking system in motion is provided, and a two-stage content push technology suitable for a satellite communication system is provided.
Disclosure of Invention
The invention provides a shipborne universal servo tracking system in motion, aiming at the technical problems of how to optimize the business experience of marine users for acquiring internet service contents by combining the characteristics of a star network of a satellite communication system and the like.
The technical scheme adopted by the invention is as follows: a ship-borne motion universal servo tracking system is characterized in that: the method comprises the following steps of controlling and pushing the content, wherein the control and content pushing are realized as follows:
the implementation process is as follows: when a user on the ship clicks a content URL on a website page, the URL is analyzed by a DNS system integrated in a content server deployed on the ship;
and the implementation process is as follows: firstly, a user initiates a content URL access request to a shipboard content server;
the third implementation process is as follows: if the content server deployed on the ship has the content requested by the user, the user can quickly and locally acquire the existing content information;
the implementation process is four: after the domain name resolution by the gateway station DNS system, the DNS system finally gives the domain name resolution right to a DNS server special for the data center CDN pointed by the CNAME;
the implementation process is five: a DNS server of the data center CDN returns the IP address of the global load balancing equipment of the CDN to a content server on the ship;
and a sixth implementation process: a content server on the ship initiates a content URL access request to global load balancing equipment of a data center CDN;
the implementation process is seven: the data center CDN global load balancing equipment selects load balancing equipment of a gateway station to which a user satellite terminal belongs according to a user IP address and a content URL (uniform resource locator) requested by a user, and tells the user to initiate a request to the equipment;
and the implementation flow is eight: the gateway station regional load balancing equipment can select a proper cache server for providing service for the user;
the implementation process is nine: the data center global load balancing equipment returns the IP address of the server to the user;
the implementation process is ten: a user initiates a request to a cache server, and the cache server responds to the user request and transmits the content required by the user to a user terminal;
and the shipboard user resolves the domain name through a DNS (domain name system), and the DNS pushes the IP address of the shipboard content server to the user.
The content server deployed on the ship does not have the content requested by the user, and the content server on the ship initiates a content request to the gateway station side through the satellite terminal.
The selection of the service provided by the cache server comprises the following conditions:
the first condition is as follows: judging which server is closest to the user according to the IP address of the user;
and a second condition: judging which server has the content required by the user according to the content name carried in the URL requested by the user;
and (3) carrying out a third condition: inquiring the current load condition of each server, and judging which server has service capacity;
after comprehensive analysis based on the above conditions, the gateway station regional load balancing device returns the IP address of one cache server to the data center global load balancing device.
The cache server does not have the content desired by the user, and the regional balance equipment still distributes the content to the user, and the cache server requests the content from the upper-level cache server until the source server which traces back to the website pulls the content to the local.
The shipborne mobile universal servo tracking system supports the function of pushing content when the bandwidth resources of a satellite link are idle, namely, the statistics of the access preference requirements of users is realized through an intelligent analysis system deployed in a data center, a gateway station cache server is instructed to actively pull source station information, and meanwhile, the information is pushed to a shipborne satellite terminal controlled by the gateway station.
The technical contents of the shipborne common servo tracking system in motion comprise content publishing, content routing, content exchange and performance management; the content release establishes index, cache, stream splitting and Multicast; the content routing has a network load balancing technology, and the requests of the users are balanced on a plurality of remote POPs through a redirection DNS mechanism in the content router so that the user requests can obtain the response of the nearest content source; the content exchange intelligently balances load carrying capacity on a cache server of the POP by utilizing technologies such as application layer exchange, flow splitting, redirection ICP (inductively coupled plasma), WCCP (WCCP) and the like according to the availability of content, the availability of a server and the background of a user; the performance management obtains the condition information of the network components through the internal and external monitoring systems, measures the end-to-end performance of content distribution, and ensures that the network is in the optimal running state.
The invention has the beneficial effects that:
the two-stage content push technology suitable for the satellite communication system can optimize the business experience of marine users for obtaining the internet service content, greatly reduce the bandwidth occupation amount of satellite wireless link resources and improve the utilization rate of the system resources.
Drawings
Fig. 1 is a system architecture diagram of a general servo tracking system in a ship.
Detailed Description
A ship-borne motion universal servo tracking system is characterized in that: the method comprises the following steps of controlling and pushing the content, wherein the control and content pushing are realized as follows:
the implementation process is as follows: when a user on the ship clicks a content URL on a website page, the URL is analyzed by a DNS system integrated in a content server deployed on the ship;
and the implementation process is as follows: firstly, a user initiates a content URL access request to a shipboard content server;
the third implementation process is as follows: if the content server deployed on the ship has the content requested by the user, the user can quickly and locally acquire the existing content information;
the implementation process is four: after the domain name resolution by the gateway station DNS system, the DNS system finally gives the domain name resolution right to a DNS server special for the data center CDN pointed by the CNAME;
the implementation process is five: a DNS server of the data center CDN returns the IP address of the global load balancing equipment of the CDN to a content server on the ship;
and a sixth implementation process: a content server on the ship initiates a content URL access request to global load balancing equipment of a data center CDN;
the implementation process is seven: the data center CDN global load balancing equipment selects load balancing equipment of a gateway station to which a user satellite terminal belongs according to a user IP address and a content URL (uniform resource locator) requested by a user, and tells the user to initiate a request to the equipment;
and the implementation flow is eight: the gateway station regional load balancing equipment can select a proper cache server for providing service for the user;
the implementation process is nine: the data center global load balancing equipment returns the IP address of the server to the user;
the implementation process is ten: a user initiates a request to a cache server, and the cache server responds to the user request and transmits the content required by the user to a user terminal;
and the shipboard user resolves the domain name through a DNS (domain name system), and the DNS pushes the IP address of the shipboard content server to the user.
The content server deployed on the ship does not have the content requested by the user, and the content server on the ship initiates a content request to the gateway station side through the satellite terminal.
The selection of the service provided by the cache server comprises the following conditions:
the first condition is as follows: judging which server is closest to the user according to the IP address of the user;
and a second condition: judging which server has the content required by the user according to the content name carried in the URL requested by the user;
and (3) carrying out a third condition: inquiring the current load condition of each server, and judging which server has service capacity;
after comprehensive analysis based on the above conditions, the gateway station regional load balancing device returns the IP address of one cache server to the data center global load balancing device.
The cache server does not have the content desired by the user, and the regional balance equipment still distributes the content to the user, and the cache server requests the content from the upper-level cache server until the source server which traces back to the website pulls the content to the local.
The shipborne mobile universal servo tracking system supports the function of pushing content when the bandwidth resources of a satellite link are idle, namely, the statistics of the access preference requirements of users is realized through an intelligent analysis system deployed in a data center, a gateway station cache server is instructed to actively pull source station information, and meanwhile, the information is pushed to a shipborne satellite terminal controlled by the gateway station.
The technical contents of the shipborne common servo tracking system in motion comprise content publishing, content routing, content exchange and performance management; the content release establishes index, cache, stream split, Multicast (Multicast); the content routing has a network load balancing technology, and the requests of the users are balanced on a plurality of remote POPs through a redirection (DNS) mechanism in the content router so that the user requests can be responded by the nearest content source; the content exchange intelligently balances load carrying capacity on a cache server of the POP by utilizing technologies such as application layer exchange, stream splitting, redirection (ICP, WCCP) and the like according to the availability of the content, the availability of the server and the background of a user; the performance management obtains the status information of the network components through the internal and external monitoring systems, measures the end-to-end performance (such as packet loss, delay, average bandwidth, start time, frame rate, etc.) of content distribution, and ensures that the network is in the optimal running state.
The two-stage content push technology suitable for the satellite communication system can optimize the business experience of marine users for obtaining the internet service content, greatly reduce the bandwidth occupation amount of satellite wireless link resources and improve the utilization rate of the system resources.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A ship-borne motion universal servo tracking system is characterized in that: the method comprises the following steps of controlling and pushing the content, wherein the control and content pushing are realized as follows:
the implementation process is as follows: when a user on the ship clicks a content URL on a website page, the URL is analyzed by a DNS system integrated in a content server deployed on the ship;
and the implementation process is as follows: firstly, a user initiates a content URL access request to a shipboard content server;
the third implementation process is as follows: if the content server deployed on the ship has the content requested by the user, the user can quickly and locally acquire the existing content information;
the implementation process is four: after the domain name resolution by the gateway station DNS system, the DNS system finally gives the domain name resolution right to a DNS server special for the data center CDN pointed by the CNAME;
the implementation process is five: a DNS server of the data center CDN returns the IP address of the global load balancing equipment of the CDN to a content server on the ship;
and a sixth implementation process: a content server on the ship initiates a content URL access request to global load balancing equipment of a data center CDN;
the implementation process is seven: the data center CDN global load balancing equipment selects load balancing equipment of a gateway station to which a user satellite terminal belongs according to a user IP address and a content URL (uniform resource locator) requested by a user, and tells the user to initiate a request to the equipment;
and the implementation flow is eight: the gateway station regional load balancing equipment can select a proper cache server for providing service for the user;
the implementation process is nine: the data center global load balancing equipment returns the IP address of the server to the user;
the implementation process is ten: the user sends a request to the cache server, and the cache server responds to the user request and transmits the content required by the user to the user terminal.
2. The on-board universal servo tracking system of claim 1, wherein: and the shipboard user resolves the domain name through a DNS (domain name system), and the DNS pushes the IP address of the shipboard content server to the user.
3. The on-board universal servo tracking system of claim 1, wherein: the content server deployed on the ship does not have the content requested by the user, and the content server on the ship initiates a content request to the gateway station side through the satellite terminal.
4. The on-board universal servo tracking system of claim 1, wherein: the selection of the service provided by the cache server comprises the following conditions:
the first condition is as follows: judging which server is closest to the user according to the IP address of the user;
and a second condition: judging which server has the content required by the user according to the content name carried in the URL requested by the user;
and (3) carrying out a third condition: inquiring the current load condition of each server, and judging which server has service capacity;
after comprehensive analysis based on the above conditions, the gateway station regional load balancing device returns the IP address of one cache server to the data center global load balancing device.
5. The on-board universal servo tracking system of claim 1, wherein: the cache server does not have the content desired by the user, and the regional balance equipment still distributes the content to the user, and the cache server requests the content from the upper-level cache server until the source server which traces back to the website pulls the content to the local.
6. The on-board universal servo tracking system of claim 1, wherein: the shipborne mobile universal servo tracking system supports the function of pushing content when the bandwidth resources of a satellite link are idle, namely, the statistics of the access preference requirements of users is realized through an intelligent analysis system deployed in a data center, a gateway station cache server is instructed to actively pull source station information, and meanwhile, the information is pushed to a shipborne satellite terminal controlled by the gateway station.
7. The on-board universal servo tracking system of claim 6, wherein: the technical contents of the shipborne common servo tracking system in motion comprise content publishing, content routing, content exchange and performance management; the content release establishes index, cache, stream splitting and Multicast; the content routing has a network load balancing technology, and the requests of the users are balanced on a plurality of remote POPs through a redirection DNS mechanism in the content router so that the user requests can obtain the response of the nearest content source; the content exchange intelligently balances load carrying capacity by utilizing application layer exchange, flow splitting, redirection ICP and WCCP on a cache server of the POP according to the availability of the content, the availability of the server and the background of a user; the performance management obtains the condition information of the network components through the internal and external monitoring systems, measures the end-to-end performance of content distribution, and ensures that the network is in the optimal running state.
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| CN202110091479.4A CN112929420A (en) | 2021-01-23 | 2021-01-23 | Shipborne universal servo tracking system in motion |
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| CN202110091479.4A CN112929420A (en) | 2021-01-23 | 2021-01-23 | Shipborne universal servo tracking system in motion |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204967818U (en) * | 2015-09-14 | 2016-01-13 | 北京航天控制仪器研究所 | On -board basic station communication system |
| CN106612456A (en) * | 2015-10-26 | 2017-05-03 | 中兴通讯股份有限公司 | Network video playing method and system, user terminal and home stream service node |
| CN108076142A (en) * | 2017-11-28 | 2018-05-25 | 郑州云海信息技术有限公司 | A kind of method and system for accelerating user's request based on CDN technologies |
| CN110519411A (en) * | 2019-09-03 | 2019-11-29 | 广州小鹏汽车科技有限公司 | A kind of data download method and system |
| CN111479296A (en) * | 2019-01-23 | 2020-07-31 | 大唐移动通信设备有限公司 | CDN cache server selection method and device |
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- 2021-01-23 CN CN202110091479.4A patent/CN112929420A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204967818U (en) * | 2015-09-14 | 2016-01-13 | 北京航天控制仪器研究所 | On -board basic station communication system |
| CN106612456A (en) * | 2015-10-26 | 2017-05-03 | 中兴通讯股份有限公司 | Network video playing method and system, user terminal and home stream service node |
| CN108076142A (en) * | 2017-11-28 | 2018-05-25 | 郑州云海信息技术有限公司 | A kind of method and system for accelerating user's request based on CDN technologies |
| CN111479296A (en) * | 2019-01-23 | 2020-07-31 | 大唐移动通信设备有限公司 | CDN cache server selection method and device |
| CN110519411A (en) * | 2019-09-03 | 2019-11-29 | 广州小鹏汽车科技有限公司 | A kind of data download method and system |
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