CN106341322A - Link switching method and system - Google Patents
Link switching method and system Download PDFInfo
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- CN106341322A CN106341322A CN201610743691.3A CN201610743691A CN106341322A CN 106341322 A CN106341322 A CN 106341322A CN 201610743691 A CN201610743691 A CN 201610743691A CN 106341322 A CN106341322 A CN 106341322A
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- link
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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
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
-
- 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
Abstract
The invention discloses a satellite earth station link switching method, which comprises the following steps: detecting whether an earth station link is abnormal; if so, carrying out automatic fault location on the earth station link to determine a fault node; and selecting a standby node to replace the abnormal node, and re-establishing a link. The system can finish all work of link test, fault diagnosis and fault recovery in a full-automatic manner without manual intervention, can ensure 7*24 hour all-weather operating of an earth station under an unattended condition, greatly improves fault-tolerant capability and adaptive capacity of the earth station system and expands application environment of the earth station system.
Description
Technical field
The present invention relates to ground satellite station applied technical field and in particular to a kind of ground satellite station link switch-over method and
System.
Background technology
With the sustainable development of information system, the automaticity of earth station's application is also deepened continuous.For row
The requirement of industry automation control system, has not only been limited as to dispatch each professional equipment complete automatically according to set flow process
Become this basic function of normal work to do.How to improve the overall efficiency of system, the rate that is successfully completed of lifting task is instantly more
The problem of concern.
Run experience according to domestic existing earth station, when there is receiving tasks carrying failure, have more than 70% former
Because being that channel link exists extremely.For solving this problem, domestic ground system all takes certain solution, most common
Method be, before task, status checkout is carried out to the relevant device in link, if equipment state is abnormal, choose state normal
Equipment executes task.But some rely only on the inspection of device level extremely, cannot come out.Such as link connection be not just
When really or there is breakpoint in link, the state of equipment itself may be all normal, but channel link has not possessed and completes to count
Ability according to the task of reception.
In terms of the switching of link, earth station domestic at present has generally begun with the mode of concatenation matrix, realizes
Mutually standby between same category of device.But but rarely have the Application Design that link self-inspection is combined with hot-swap.Because in most cases,
It it is the moment that task is assigned to earth station, ground station control system has been completed the distribution of device resource.In resource application phase
In the case of compact, if none of can expliciting the position system exception system as support, rely only on setting before task
There is sizable risk as reference, rashly handoff links in standby status checkout.So when abnormal occur, being often required for people
Work participates in, and can carry out the switch operating of link after carrying out overall analysis, relatively costly, less efficient.
In sum, current ground system be badly in need of introducing one kind can execution system level link test automatically, and can
It is accurately positioned link according to test result extremely, the final method for extremely executing link hot-swap.
Content of the invention
In view of this, the embodiment of the present invention provides a kind of ground satellite station link switch-over method and system, solves in satellite
In the running of grounded receiving station, according to traditional equipment state inspection it is impossible to verifying the correctness of link completely and working as and send out
When existing link is abnormal, the positioning for problem there be difficulties involved when, need artificial participation just can complete evading of fault, cost
The problem of higher and inefficiency.
On the one hand, the invention discloses a kind of ground satellite station link switch-over method, comprising:
Detection earth station link is abnormal；
If existing abnormal, automatically fault location being carried out to described earth station link, determines malfunctioning node；
Select secondary node to replace abnormal nodes, again build link.
On the other hand, the invention discloses a kind of ground satellite station link switching system, comprising:
Link detection module, detection earth station link is abnormal；
Fault location module, if existing abnormal, automatically carrying out fault location to described earth station link, determining fault section
Point；
Link switching module, selects secondary node to replace abnormal nodes, again builds link.
Using technique scheme, the present invention at least can obtain following technique effects:
By way of automatic dispatching, substitute operation personnel and complete specialized link failure positioning work, and energy
System-level automatic reparation is realized in the hot-swap being enough automatically performed link, and the personnel that decrease participate in, and enable the system to keep round-the-clock
Run；
When carrying out link test, the automatization that refer to the system-level key index such as go-and-return test, error rate test surveys
Method for testing, for checking compared to simple equipment state, system level testing is it can be found that fault outside equipment state exception；
After finding that link has exception, can automatically execute link analysis, and be accurately positioned out abnormal node, this energy
Enough reductions require to the specialization knowledge of operation personnel, and the speed of lift system fault location simultaneously shortens system break service
Time；
Based on equipment with respect to the priority of task, make full use of matrix resources characteristic, realize device resource efficiently automatic
Change management it is achieved that the unified management of polymorphic type, multi-quantity equipment, solve the problems, such as the hot-swap after link failure.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to institute in embodiment of the present invention description
Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only the present invention some enforcement
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be implemented according to the present invention
The content of example and these accompanying drawings obtain other accompanying drawings.
Fig. 1 is the ground satellite station link automatic switching method flow chart described in the embodiment of the present invention one；
Fig. 2 is switch matrix schematic diagram；
Fig. 3 is the schematic diagram that link is carried out with go-and-return test；
Fig. 4 is the flow chart carrying out go-and-return test to link；
Fig. 5 is link failure analysis process figure；
Fig. 6 is link switching flow chart；
Fig. 7 is exemplary process flow figure；
Fig. 8 is the ground satellite station link automatic switchover system described in the embodiment of the present invention two；
Fig. 9 is the ground satellite station monitoring management apparatus described in the embodiment of the present invention two.
Specific embodiment
For make present invention solves the technical problem that, the technical scheme that adopts and the technique effect that reaches clearer, below
By combine accompanying drawing the technical scheme of the embodiment of the present invention is described in further detail it is clear that described embodiment only
It is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those skilled in the art exist
The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.Need explanation
It is technical scheme to be illustrated taking embodiments of the invention as a example, but not in this, as restriction.This area skill
Art personnel can understand, technical scheme proposed by the invention, in addition to for ground satellite station link, can also extensively be applied
In other same or like fields, and obtain similar technique effect.
Embodiment one
Fig. 1 is the ground satellite station link automatic switching method flow chart described in the present embodiment.
With reference to shown in Fig. 1, the ground satellite station link automatic switching method described in the present embodiment comprises the steps:
S1, automatic detection is carried out to earth station's link, judge whether exception；
Exemplarily, the ground satellite station link described in the embodiment of the present invention is realized on link based on the mode of switch matrix
Interconnection between each node device, as shown in Figure 2.By this mode, distinct device between different link nodes to be changed
Annexation can easily be realized it is only necessary to change switch matrix, can for the earth station's task that there are large number quipments
Lift system efficiency.Connect multiple nodes by way of multiple difference switch matrix cascades as shown in Figure 3, constitute whole piece and appoint
Business link, is that the dynamic change of link imparts very strong ability.
Before earth station's execution reception task, need the physical environment confirming tasks carrying whether abnormal, whether can
Undertake the execution of this task, therefore, need the task execution environment of earth station is tested before tasks carrying.Impact earth station
The factor of reception task success or failure has a lot, main include whether earth station equipment normal and the communication of whole piece link whether just
Often.Therefore, the embodiment of the present invention is detected mainly for this 2 points.Specifically, described step s1 includes: device level detection,
And/or system-level detection.
Wherein, described device level detection includes: detects whether the equipment state related to task be all normal.Each on link
The normal operation of node device itself is to ensure that the successfully most basic requirement of ground station reception tasks carrying.Can by device level detection
With the reception mission failure avoiding unit exception to be led to.Specifically, equipment that can be related to task carries out facility information
Or the collection of equipment state, the data collecting is checked, judges equipment whether normal operation.
Described system-level detection includes: carries out go-and-return test to whole piece link, whether signal is unimpeded to judge link；And/or
Index test is carried out to whole piece link, judges whether the communication quality of link meets preset requirement.System-level detection is from whole piece
The angle of link judges whether the condition possessing proper communication.Specifically, go-and-return test and index test can be divided into.Its
In, whether signal is unimpeded it is therefore an objective to judge link to carry out go-and-return test to whole piece link；Index test is carried out to whole piece link,
Purpose is whether the communication quality judging link meets preset requirement.Exemplarily, referring to Fig. 3 and Fig. 4, following sides can be passed through
Formula carries out go-and-return test to link:
1) pass through concatenation matrix, by testing source connect to task link stem (execution normal tasks when, test signal
The output in source is to close)；
2) opening signal source, sends test signal according to link capability；
3) check whether the afterbody device signal acquisition of link is normal.
In addition, These parameters test can be by testing to the important traffic quality index of system, such as bit error rate etc.,
The present invention is not construed as limiting to this.
If s2 exists extremely, automatically fault location is carried out to described earth station link, determines malfunctioning node；
Detect link abnormal when, system will execute link failure analysis automatically, and the strategy of analysis is according to detecting
Depending on link exception.Specifically, for the go-and-return test method adopting during aforementioned link self-inspection, link failure analysis herein is heavy
Point carries out malfunctioning node positioning extremely for loop.Detailed process is as shown in figure 5, be described as follows:
1) pass through concatenation matrix, by testing source connect to task link stem (execution normal tasks when, test signal
The output in source is to close)；
2) from the beginning of link trailer node, check forward that the signal condition of each node (by signal-testing apparatus, is passed through successively
Multistage matrix, links each device node successively)；
3) when the signal condition of certain node is normal, and the node signal of a upper inspection is abnormal, then position outgoing link
Malfunctioning node is a upper node of signal condition normal node, and flow process terminates.
S3, automatically select secondary node replace abnormal nodes, again build link.
After the positioning work completing link failure, system will carry out the restructuring of resource for malfunctioning node, chooses remaining
Stand-by equipment substitute the trouble point new task link of composition, i.e. enter the switching of line link.
In order to realize link hot-swap it is necessary first to each equipment of specification physical interface and monitoring interface, build shared
Device resource matrix realizes the configuration of station equipment matrix form；In addition, by the intersection point (cascaded switch matrix) controlling multistage-combination,
Realize the effectively shared and mutual of device resource is backed up；And, it is also based on the priority for task for the equipment, realize equipment
The automatically selecting of resource.As shown in fig. 6, the exemplary flow of link hot-swap is as follows:
1) according to priority facility, order from high to low chooses the backup similar with link failure node (warping apparatus)
Equipment；
2) if there is not available alternate device resource, judge link switching failure, flow process terminates；
3) if there is available alternate device resource, first determine whether whether the state of this equipment is normal；
4) if equipment state is abnormal, re-execute step 1), choose remaining alternate device；
5) if equipment state is normal and online, select this equipment replacement malfunctioning node, generate new link scheme；
6) switching matrix connected mode, rebuilds link using the equipment chosen, completes link hot-swap.
In an improved embodiment, also included before above-mentioned steps s1: s4, according to mission requirements from thesauruss from
Dynamic extraction link scheme, and link is built based on the link scheme being extracted.Based on this embodiment, provide following exemplary process
Flow process, shown in Figure 7.
1) link scheme of acquiescence is extracted from thesauruss according to mission requirements；
2) build link (controlling switch matrix is attached arranging) according to link scheme；
3) to the link execution link self-inspection put up；
4) if link is normal, etc. pending task, flow process terminates；
5) if link is abnormal, link failure analysis work, the malfunctioning node in positioning link are executed；
6) it is directed to trouble point, the allotment of execution device resource, enter the switching of line link, and according to the link scheme after switching
Again build channel link；
7) if handover success, repeat step 3) until flow process terminates；
8) if handoff failure, do not possess Mission Capability, flow process terminates.
The embodiment of the present invention automatically executes link test before tasks carrying and obtains test result, then automatically according to survey
Test result carries out fault diagnosis, and automatically implements link hot-swap according to trouble point, thus in the case of without manual intervention
It is automatically finished whole work of link test, fault diagnosis and fault recovery, ensure that earth station unattended
In the case of 7*24 hour round-the-clock running, be greatly enhanced fault-tolerant ability and the adaptability of earth station system, expanded ground
Stand systematic difference environment.
Embodiment two
On the other hand, the present invention also provides a kind of ground satellite station link automatic switchover system, as shown in figure 8, described from
Dynamic switched system 800 includes:
Link detection module 801, carries out automatic detection to earth station's link, judges whether exception；
Fault location module 802, if existing abnormal, automatically carrying out fault location to described earth station link, determining fault
Node；
Link switching module 803, automatically selects secondary node and replaces abnormal nodes, again build link.
Wherein, described earth station link is built based on cascaded switch matrix；Correspondingly, described again build link bag
Include: link is again built by the connected mode switching described cascaded switch matrix.
Further, described automatic switchover system 800 also includes: Link Initialization module 804, according to mission requirements from depositing
Automatically extract link scheme in bank, and link is built based on the link scheme being extracted.
Automatic switchover system described in the present embodiment is corresponding with the automatic switching method described in previous embodiment one, specifically
The implementation of function and acquired technique effect are essentially identical with previous embodiment one, will not be described here.
Embodiment three
On the other hand, the present invention also provides a kind of ground satellite station monitoring management apparatus 900, as shown in figure 9, described monitoring
Managing device includes:
Monitoring of tools module 901, the information of equipment comprised to earth station, abnormality detection and to equipment
Parameter be controlled；
Link management module 902, to link, related device resource is managed, builds chain using described device resource
Road and automatic test is carried out to link；
Fault diagnosis module 903, is analyzed to anomaly link, and positions the malfunctioning node in link.
Based on this monitoring management apparatus 900, corresponding ground satellite station link automatic switching method can be executed, comprising:
S10, link management module carry out automatic detection to earth station's link, judge whether exception；
If s20 exists extremely, fault diagnosis module automatically carries out fault location to described earth station link, determines fault
Node；
S30, link management module automatically select secondary node and replace abnormal nodes, again build link.
May also include that link management module automatically extracts link according to mission requirements from thesauruss before step s10
Scheme, and link is built based on the link scheme being extracted.
Specifically, described step s10 includes: device level detection, and/or system-level detection.Wherein, described device level detection
Including: whether the monitoring of tools module detection equipment state related to task be all normal；Described system-level detection includes: link
Management module carries out go-and-return test to whole piece link, and whether signal is unimpeded to judge link；And/or link management module is to whole piece chain
Road carries out index test, judges whether the communication quality of link meets preset requirement.Specifically, described whole piece link is carried out
Go-and-return test includes: test signal is inputted from link stem node；Whether detection link trailer node normally obtains signal.
In addition, described step s20 includes: test signal is inputted from link stem node；From the beginning of link trailer node,
Detect the signal condition of each node to stem node direction successively, if the node signal of current check is normal, and previous inspection
Node signal is abnormal it is determined that the node of previous inspection is malfunctioning node.
Described step s30 includes: link management module is automatically selected standby based on node with respect to the priority of task
Node.Specifically, described step s30 includes: it is same with malfunctioning node that link management module is based on described priority orders selection
The stand-by equipment of class；Whether the state of stand-by equipment selected by judgement is abnormal；If abnormal, select next stand-by equipment；Otherwise, profit
Again build link with selected stand-by equipment.
Ground satellite station monitoring management apparatus 900 described in the present embodiment and based on the automatic switchover performed by this device
Method and automatic switching method functional similarity, specific implementation and the acquired technique effect described in previous embodiment one
It is substantially the same as in the previous example, here is no longer expanded on further.
In satellite earth receiving station's running, according to traditional equipment state inspection it is impossible to verify link completely
Correctness and when finding that link is abnormal, the positioning for problem there be difficulties involved when, need the participation of professional person
Positioning and the process of fault, relatively costly and inefficiency can be completed.In this regard, the embodiment of the present invention is held before tasks carrying automatically
Test result is tested and obtained to line link, then carries out fault diagnosis automatically according to test result, and automatically real according to trouble point
Apply link hot-swap.
Using technique scheme, various embodiments of the present invention can use to obtain following technique effect: without manual intervention
In the case of be automatically finished whole work of link test, fault diagnosis and fault recovery, ensure that earth station unmanned
7*24 hour round-the-clock running in the case of on duty, is greatly enhanced fault-tolerant ability and the adaptability of earth station system, expands
The applied environment of earth station system；Earth station's link can be compared with comprehensive detection, compared to traditional equipment shape
For state checks, it can be found that the fault outside equipment state exception；Based on equipment with respect to the priority of task, make full use of
Matrix resources characteristic is it is achieved that manage to device resource high-efficient automatic, and the unified pipe to polymorphic type, multi-quantity equipment
Reason, efficiently solves the hot-swap problem after link failure.
All or part of content in the technical scheme that above example provides can pass through software programming or specialized hardware
Equipment realize, wherein software program is stored in the storage medium that can read, storage medium for example: the hard disk in computer, light
Disk or floppy disk；Special hardware can be asic, fpga, soc or the ip core with related circuit.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (13)
1. a kind of ground satellite station link switch-over method is it is characterised in that include:
Detection earth station link is abnormal；
If existing abnormal, automatically fault location being carried out to described earth station link, determines malfunctioning node；
Select secondary node to replace abnormal nodes, again build link.
2. changing method according to claim 1 is it is characterised in that described earth station link is taken based on cascaded switch matrix
Build and form.
3. changing method according to claim 2 is it is characterised in that described link of again building includes: by switching institute
The connected mode stating cascaded switch matrix to build link again.
4. changing method according to claim 1 is it is characterised in that also include: according to mission requirements from thesauruss from
Dynamic extraction link scheme, and link is built based on the link scheme being extracted.
5. changing method according to claim 1 is it is characterised in that described detection earth station link is abnormal, comprising: equipment
Level detection, and/or system-level detection；
Described device level detection includes: detects whether the equipment state related to task be all normal；
Described system-level detection includes: carries out go-and-return test to whole piece link, whether signal is unimpeded to judge link；And/or, to whole
Bar link carries out index test, judges whether the communication quality of link meets preset requirement.
6. changing method according to claim 5 is it is characterised in that described carry out go-and-return test to whole piece link and include:
Test signal is inputted from link stem node；
Whether detection link trailer node normally obtains signal.
7. changing method according to claim 1, it is characterised in that described carry out automatic detection to earth station's link, is sentenced
Break with the presence or absence of abnormal, comprising:
Test signal is inputted from link stem node；
From the beginning of link trailer node, detect the signal condition of each node successively to stem node direction, if the section of current check
Point signal is normal, and the node signal of previous inspection is abnormal it is determined that the node of previous inspection is malfunctioning node.
8. changing method according to claim 1 is it is characterised in that described selection secondary node replaces abnormal nodes, bag
Include: the priority according to task selects secondary node.
9. changing method according to claim 8 is it is characterised in that described selection secondary node replaces abnormal nodes, bag
Include:
Select the stand-by equipment similar with malfunctioning node based on described priority orders；
Whether the state of stand-by equipment selected by judgement is abnormal；
If abnormal, select next stand-by equipment；Otherwise, again build link using selected stand-by equipment.
10. a kind of ground satellite station link switching system is it is characterised in that include:
Link detection module, detection earth station link is abnormal；
Fault location module, if existing abnormal, automatically carrying out fault location to described earth station link, determining malfunctioning node；
Link switching module, selects secondary node to replace abnormal nodes, again builds link.
11. switched systems according to claim 10 are it is characterised in that described earth station link is based on cascaded switch matrix
Build.
12. switched systems according to claim 11 are it is characterised in that described link switching module, described by switching
The connected mode of cascaded switch matrix to build link again.
13. switched systems according to claim 10 are it is characterised in that also include: Link Initialization module, according to task
Demand extracts link scheme from thesauruss, builds link based on the link scheme being extracted.
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| CN201610743691.3A CN106341322A (en) | 2016-08-28 | 2016-08-28 | Link switching method and system |
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| CN201610743691.3A CN106341322A (en) | 2016-08-28 | 2016-08-28 | Link switching method and system |
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