CN115314861B - Automatic switching strategy and user management method based on marine multi-satellite link and gateway equipment - Google Patents
Automatic switching strategy and user management method based on marine multi-satellite link and gateway equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/24—Accounting or billing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/34—Modification of an existing route
- H04W40/36—Modification of an existing route due to handover
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- 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
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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
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Abstract
A method for automatically switching a multi-satellite link based on a ship, a user management method and gateway equipment are disclosed, wherein S1, different switching scenes in the switching strategy are configured according to communication fluency and tariff cost, and a switching strategy routing table is configured based on switching rules and switching scenes of VLAN dimension; s2: detecting the fluency of the current communication link by using a Ping or BFD method, judging whether link switching is performed or not, and immediately sending out an instruction when the switching scene is satisfied; s3: triggering link switching after receiving an instruction, wherein the link switching is to automatically modify a default route and a DNS proxy; s4: after the switching strategy is finished, transmitting information to a user management end to execute user service grade strategy change and executing charging through a charging server; s5: and reporting the link switching and service level changing information to an external system and a gateway server management end. The invention realizes the rapid and real-time switching of links between different satellites and between the satellites and 5G/4G, ensures the smoothness and availability of the ship-side communication, manages the user grade, and solves the problem of high tariffs generated when the user is given network service.
Description
Technical Field
The invention relates to the technical field of ship network communication, in particular to a ship multi-satellite link, a 4G or 5G automatic switching strategy, a user management method and gateway equipment.
Background
Because the environment is complex in the running process of the ship, the communication technology has higher requirements, the communication technology applied to the ship at present is generally satellite, 4G and the like, but certain limitation exists in a single use of a certain communication mode, if extreme weather is encountered in the running process of the ship, a single line is easy to break, the ship is temporarily disconnected, the running safety of the ship is very unfavorable, and in order to ensure that the ship is in a good communication state at all times in the running process of the ship, the multilink fusion is needed. In order to achieve economical efficiency of communication, a link with low communication cost and good communication effect is selected for communication, and the conventional communication link switching method has great inconvenience based on human judgment.
The CN202021933155.8 patent provides a method for automatic switching between different satellites and between 4G signals and satellites, mainly for direct link switching of communication devices according to the connection status of the network, without involving switching of satellite links according to tariff policies and without configuring 5G connections, nor addressing the problem of management of network services by the user plane according to link changes.
In view of the foregoing, there is a need for a gateway system for automatically switching a network link of a ship to solve the drawbacks of the prior art.
Disclosure of Invention
In order to solve the problems of automatic link switching and user network service management according to the coverage range and fluency of communication signals and communication charges in the running process of a ship, the invention provides a method for automatically switching multiple satellite links of a gateway for a ship and a user management method, which comprises the following steps: and switching between satellites and 4G/5G networks is realized according to the connection condition and tariff strategy of the network. The method for managing the user network service comprises the following steps: the method comprises the steps of changing the service level of the user according to different network communication characteristics and charging according to the service level of the user. The method realizes the rapid and real-time switching of the satellite and the 5G/4G links, ensures the smoothness and availability of the ship-side communication, performs the economical configuration, and solves the problem of high tariffs generated when the network service is given to the user.
The technical scheme of the invention is as follows:
an automatic switching strategy and user management method for multiple satellite links of a marine gateway,
s1, configuring different switching scenes in a switching strategy according to communication fluency and tariff cost, and configuring a switching strategy routing table based on switching rules and switching scenes of VLAN dimensionality;
s2: detecting the fluency of the current communication link by using a Ping or BFD method, judging whether link switching is performed or not, and immediately sending out an instruction when the switching scene is satisfied;
s3: triggering link switching after receiving an instruction, wherein the link switching is to automatically modify a default route and a DNS proxy;
s4: after the switching strategy is finished, transmitting information to a user management end to execute user service grade strategy change and executing charging through a charging server;
s5: and reporting the link switching and service level changing information to an external system and a gateway server management end.
The switching rules of the VLAN dimension comprise setting different network utilization grades of ship equipment and crews and corresponding to different VLAN modules, and accessing the VLAN modules of different grades according to different switching scenes.
The scene switching configuration method comprises the steps of configuring priority values of different links by using a WEB interface, a background command or configuration file and a land control center, and setting a main link and a standby link according to the priority values of the different links.
The switching strategy routing table is configured according to a configuration rule, and the configuration rule of the switching scene comprises:
1) The main line link fault/shielding/rain fade is switched to a backup link, and is switched to a main line link after the main line link is recovered;
2) When the ship sails to the area covered by the two satellite networks at the same time, the communication gateway equipment actively switches the link to the low-tariff satellite network, and when the ship sails to the area which cannot be covered by the low-tariff satellite network, the communication gateway equipment actively switches the link back to the high-tariff satellite network;
3) Presetting a 4G/5G network card number, and actively switching a link to a 4G/5G network by the communication gateway equipment when a ship sails to an area covered by the 4G/5G network.
The Ping method is a service command of an application layer in a network architecture, DNS mapped by domain names and IP addresses is obtained through different interfaces of Ping, and down is judged when DNS is not passed or specified IP is not passed, so that the switching strategy is immediately carried out in the switching scene; the BFD method is a bidirectional forwarding detection mechanism and realizes the rapid detection of the link millisecond level.
The user service level policies are different service level policies defined by a source IP address, a source port, a destination IP address, a destination port, and a transport layer protocol.
The service level policy change concrete implementation mode is that the maximum rate of a single IP network segment and a single IP network segment is limited by using a packet filtering technology and a current limiting algorithm, the internet surfing behavior of a user is limited by using the packet filtering technology, the corresponding message priority is modified by using a mangle tool, and the flow control of each level is performed at an outlet by using a flow management tool tc.
The link switching and service level policy change information reporting is communicated with an external system through modes such as a standard API, and the like, and the switching information is transmitted to the external system through a syslog protocol through configuration, importing of destination address lists such as a receiver and a receiving mode, wherein the external system is a land-shore control center.
The link switching comprises information such as switching time, switching strategy, switching time consumption and the like.
And the response time from the meeting of the switching scene to the completion of the switching strategy is less than 10 seconds, and the time limit from the completion of the switching strategy to the receipt of the reporting result by the external system terminal is less than 30 seconds.
A gateway device, comprising: one or more processors; and the storage is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors realize the automatic switching strategy of the marine gateway multi-satellite link and the user management method.
The number of the Wan interfaces connected with the satellite debugging demodulator is not less than 4, and the number of the Lan interfaces connected with the ship-end equipment is not less than 4.
A computer readable storage medium having stored thereon a computer program which when executed by a processor implements a marine gateway multi-satellite link auto-handoff strategy and a user management method.
Advantageous effects
The invention provides a marine gateway multi-satellite link automatic switching strategy, a user management method and a user management method, which are used for controlling communication cost on the basis of meeting ship communication requirements, switching communication links according to tariff cost, managing user network services according to the communication links, including changing user service level strategies according to different network communication characteristics and charging according to user service levels. And feeds information back to external systems and management personnel in time. The method realizes the rapid and real-time switching of links between different satellites and between the satellites and 5G/4G, ensures the smoothness and availability of the ship-side communication, and simultaneously carries out economical configuration, thereby solving the problem of high tariffs generated when the network service is given to users.
First, handover policies and corresponding service level policy functions for different satellite links are defined. Different switching scenes are set according to ship running environments and communication cost, and various implementation methods are provided.
And secondly, the user network service level policy is changed according to different switching links, so that the communication cost is reduced on the basis of ensuring smooth navigation communication.
Finally, the interface of the satellite link switching system is supported to be in butt joint with an external system, and the satellite link switching condition is timely notified and fed back to a related system or personnel.
Drawings
FIG. 1 is a flow chart of a method for automatically switching strategies and user management of multiple satellite links of a marine gateway.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings:
a method for automatically switching strategies and user management of a multi-satellite link of a marine gateway comprises the following steps.
S1, configuring different switching scenes in a switching strategy according to communication fluency and tariff cost, and configuring a switching strategy routing table based on switching rules and switching scenes of VLAN dimension.
The switching rules of the VLAN dimension comprise setting different network utilization grades of ship equipment and crews and corresponding to different VLAN modules, and accessing the VLAN modules of different grades according to different switching scenes.
In the embodiment, the crew network can be arranged on the VLAN-1 module, and when the communication satellite with high tariffs is selected, the VLAN-1 module is not accessed, so that the high tariffs of the communication link are controlled.
In an embodiment, the method for configuring the switching scenario includes configuring priority values of different links by using a WEB interface, a background command or a configuration file, and a land control center, and setting a main link and a standby link according to the priority values of the different links.
The configuration rule of the switching scene comprises the following steps:
(1) The main link failure/occlusion/rain fade will switch to the backup link:
such as a global network VSAT resource a, a maritime satellite B. When the A satellite network causes unsmooth link due to equipment failure or antenna shielding or rain attenuation, the communication gateway equipment actively switches to the B satellite network, and meanwhile, the service level is changed into a prefabricated strategy.
When the link of the satellite network A is recovered, the network B should be switched back to the network A in time, and the service level is recovered to the initial strategy.
(2) High tariffs switch to low tariffs:
such as global network VSAT resource a, ethernet VSAT resource B (B tariff lower than a). The vessel defaults to using the a-network due to global airliner characteristics. When the ship sails to the area covered by the A, B network at the same time, the communication gateway device should actively switch the link to the B network.
When the ship sails to the area where the B network cannot cover, the communication gateway device should actively switch the link back to the a network.
(3) The satellite network switches to a 4G/5G network:
for example, the sub-Ethernet VSAT resource A integrates a 4G/5G module and presets a 4G/5G network card number. The vessel defaults to using the a-network. When the ship sails to the area covered by the 4G/5G network, the communication gateway device should actively switch the link to the 4G/5G network.
When the ship sails to the area where the 4G/5G network cannot cover, the communication gateway device should actively switch the link back to the A network.
S2: detecting the fluency of the current communication link by using a Ping or BFD method, judging whether link switching is performed or not, and immediately sending out an instruction when the switching scene is satisfied;
the Ping method is a service command of an application layer in a network architecture, DNS mapped by domain names and IP addresses is obtained through different interfaces of Ping, down is judged when DNS is not passed or specified IP is not passed, and an instruction is immediately sent to a switching strategy module when the switching scene is met; the BFD method is a bidirectional forwarding detection mechanism and realizes the rapid detection of the link millisecond level.
S3: triggering link switching after receiving an instruction, wherein the link switching is to automatically modify a default route and a DNS proxy;
and the strategy configuration routing table carries out priority configuration on each link, and after receiving the instruction, the switching strategy routing table allows the data packet of the link to pass through so as to realize default routing and DNS proxy modification.
S4: after the switching strategy is finished, the information is transmitted to the user management end to execute the strategy change of the user service level and to execute the charging through the charging server.
The user service level policies define different service level policies for the source IP address, source port, destination IP address, destination port, and transport layer protocol. The service level change concrete implementation mode is that the maximum speed of a single IP network segment and a single IP network segment is limited by using a packet filtering system and a current limiting algorithm, the internet surfing behavior of a user is limited by using the packet filtering system, the corresponding message priority is modified by using a mangle tool, and the flow control of each level is performed at an outlet by using a flow management tool tc.
S5: and reporting the link switching and service level changing information to an external system and a gateway server management end.
The link switching and service level changing information reporting is communicated with an external system through modes such as a standard API, and the like, and the switching information is transmitted to the external system through a syslog protocol through configuration, importing of destination end address lists such as a receiver and a receiving mode, wherein the external system is a land-shore control center. The link switching information comprises switching time, switching strategy, switching time consumption and the like.
The user charging mode is that the gateway supports front charging, a shipman firstly needs PORTAL authentication to log on the network, uses an account number and a password to log in, can charge according to the flow, can charge according to the use time, and automatically cuts off the network after the limited flow is used up. For the ship end application, the PORTAL authentication is not affected by the charging rule through the binding of the IP address or the MAC address.
User management client
User tariffs are managed in a WEB user management interface, and specific interface setting functions are shown in a table 1:
TABLE 1
And the response time from the meeting of the switching scene to the completion of the switching strategy is less than 10 seconds, and the time limit from the completion of the switching strategy to the receipt of the reporting result by the external system terminal is less than 30 seconds.
In an embodiment, the gateway device is comprised of one or more processors; the storage is configured to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the link automatic switching policy method.
The gateway equipment is provided with Wan interfaces connected with the satellite debugging demodulator, the number of the Wan interfaces is not less than 4, and the number of the Lan interfaces connected with the ship-side equipment is not less than 4.
A computer readable storage medium having stored thereon a computer program which when executed by a processor implements a link auto-switching policy method.
The above examples are provided for clarity of illustration only and are not intended to limit the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious from the technical proposal of the invention are still within the scope of the invention.
Claims (9)
1. A marine gateway multi-satellite link automatic switching strategy and a user management method are characterized in that:
s1, configuring different switching scenes in a switching strategy according to communication fluency and tariff cost, and configuring a switching strategy routing table based on switching rules and switching scenes of VLAN dimensionality; the switching rules of the VLAN dimension comprise setting different network grades of ship equipment and crews and corresponding to different VLAN modules, and accessing the VLAN modules of different grades according to different switching scenes;
s2: detecting the fluency of the current communication link by using a Ping or BFD method, judging whether link switching is performed or not, and immediately sending out an instruction when the switching scene is satisfied;
s3: triggering link switching after receiving an instruction, wherein the link switching is to automatically modify a default route and a DNS proxy;
s4: after the switching strategy is finished, transmitting information to a user management end to execute user service grade strategy change and executing charging through a charging server; the user service level policies are different service level policies defined by a source IP address, a source port, a destination IP address, a destination port and a transport layer protocol; the service level policy change concrete implementation mode is that the maximum speed of a single IP and IP network segments is limited by using a packet filtering technology and a current limiting algorithm, the internet surfing behavior of a user is limited by using the packet filtering technology, the corresponding message priority is modified by using a mangle tool, and the flow control of each level is performed at an outlet by using a flow management tool tc;
s5: and reporting the link switching and service level policy change information to an external system and a gateway server management end.
2. The automatic switching strategy and user management method for multiple satellite links of a marine gateway according to claim 1, wherein the mode of configuring the switching scene includes configuring priority values of different links by using a WEB interface, a background command or a configuration file, and a land control center, and setting a main link and a standby link according to the priority values of the different links.
3. The automatic switching strategy and user management method for multiple satellite links of a marine gateway according to claim 2, wherein the switching strategy routing table is configured according to configuration rules, and the configuration rules of the switching scenario include:
the main line link is switched to a standby link under the influence of faults/shielding/rain failure, and is switched to the main line link after the main line link is recovered;
when the ship sails to the area covered by the two satellite networks at the same time, the communication gateway equipment actively switches the link to the low-tariff satellite network, and when the ship sails to the area which cannot be covered by the low-tariff satellite network, the communication gateway equipment actively switches the link back to the high-tariff satellite network;
presetting a 4G/5G network card number, and actively switching a link to a 4G/5G network by the communication gateway equipment when a ship sails to an area covered by the 4G/5G network.
4. The automatic switching strategy and user management method for multiple satellite links of a marine gateway according to claim 1, wherein the Ping method is a service command of an application layer in a network architecture, and the BFD method is a bidirectional forwarding detection mechanism, so as to realize rapid detection of a link millisecond level.
5. The automatic switching strategy and user management method for multiple satellite links of a marine gateway according to claim 1, wherein the related information of the link switching comprises switching time, switching strategy and switching time.
6. The automatic switching strategy and user management method for the marine gateway multi-satellite link according to claim 1, wherein the response time from the satisfaction of a switching scene to the completion of the switching strategy is less than 10 seconds, and the time limit from the completion of the switching strategy to the receipt of a reporting result by the external system terminal is less than 30 seconds.
7. A gateway device, comprising: one or more processors; a storage for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the marine gateway multi-satellite link automatic handoff strategy and user management method of any of claims 1-6.
8. The gateway apparatus according to claim 7, wherein the number of the Wan interfaces connected to the satellite modem is not less than 4, and the number of the Lan interfaces connected to the ship-side apparatus is not less than 4.
9. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the automatic switching strategy and user management method for a marine gateway multi-satellite link as claimed in any of claims 1-6.
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| CN105634584A (en) * | 2015-12-30 | 2016-06-01 | 大连陆海科技股份有限公司 | Transmission link switchable ship data acquisition system and method |
| CN113329342A (en) * | 2021-05-25 | 2021-08-31 | 亚太卫星宽带通信（深圳）有限公司 | Method for automatically switching satellite link |
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| US20190074894A1 (en) * | 2017-09-05 | 2019-03-07 | Hughes Network Systems, Llc | Convergent architectures for multi-orbit satellite communications |
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| CN1951075A (en) * | 2004-04-30 | 2007-04-18 | 英特尔公司 | Method and system for adapting wireless network service level |
| CN105634584A (en) * | 2015-12-30 | 2016-06-01 | 大连陆海科技股份有限公司 | Transmission link switchable ship data acquisition system and method |
| CN113329342A (en) * | 2021-05-25 | 2021-08-31 | 亚太卫星宽带通信（深圳）有限公司 | Method for automatically switching satellite link |
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| 一种基于VSAT 的船舶卫星通信业务系统;吉诚 等;上海船舶运输科学研究所学报;第43卷(第3期);全文 * |
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