CN106452843B - A kind of in-orbit 1553B bus network malfunction monitoring diagnostic method - Google Patents
A kind of in-orbit 1553B bus network malfunction monitoring diagnostic method Download PDFInfo
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- CN106452843B CN106452843B CN201610827520.9A CN201610827520A CN106452843B CN 106452843 B CN106452843 B CN 106452843B CN 201610827520 A CN201610827520 A CN 201610827520A CN 106452843 B CN106452843 B CN 106452843B
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- bus network
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- bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
Abstract
A kind of in-orbit 1553B bus network malfunction monitoring diagnostic method, it chooses certain end RT in bus network and does multiplexing functions, increase bus network malfunction monitoring and diagnostic function for it, so that the ability that bus network has failure Centralizing inspection, concentrates diagnosis, distributed treatment.The monitoring of message transmission abnormality, the fault modeling based on flight mission profile, fault diagnosis are responsible in the end RT being re-used, and fault diagnosis result is distributed to bus control unit and other ends RT, realize that 1553B bus network failure is in-orbit from main process task.The in-orbit bus monitoring module that need not additionally increase standalone feature of the present invention, the data transmission state of entire bus network is monitored by the end the RT centralization of multiplexing functions, 1553B bus network knowledge base is generated based on flight mission profile, provides automatic fault diagnosis and health control for satellite bus network.This method is applied in having emitted satellite, achieves better effects, and popularization and application foreground is good.
Description
Technical field
The present invention relates to a kind of malfunction monitoring diagnostic methods of 1553B bus network, especially a kind of to be based on aerial mission
Section carries out fault modeling, in-orbit bus failure centralization monitoring and diagnostic method, belongs to satellite data transmission network field.
Background technique
When present satellites system designs, 1553B bus is generallyd use as data communication core network, 1553B bus network
Whether network reliability directly determines satellite system normally, the malfunction monitoring diagnostic method of 1553B bus network is broadly divided into two classes:
Distributed monitoring diagnostic method, centralized monitoring, diagnosing method
Distributed monitoring diagnostic method: all communication nodes all necessarily participate in the monitoring and diagnosis of failure in bus network,
The shortcoming of the method, which has (one) each communication node all to there is malfunction monitoring diagnostic module, will increase the complexity of system, increase
System cost；(2) each communication node institute application failure monitoring, diagnosing method is multifarious, and method implementation effect is very different；
(3) fault message that each communication node can monitor is limited, and unilateral fault message may will affect fault diagnosis knot
Fruit.
Centralized monitoring, diagnosing method: adding bus monitoring module in bus network, and bus monitoring module is responsible for total
All communication datas are received, formatted and are stored on line, and will monitor data down transmission ground, and ground is according to the monitoring received
Data carry out fault location.The shortcoming of the method has (one) bus network to need the additional bus monitoring for increasing standalone feature
Module increases system cost；(2) in-orbit not have the autonomous diagnosis capability of failure, need ground cooperation to complete.A kind of patent " base
In the satellite fault rapid positioning system of bus monitoring " use the method.
Summary of the invention
Technical problem solved by the present invention is a kind of in-orbit bus monitoring module that need not increase standalone feature is provided,
By the way that the end RT multiplex bus function for monitoring, centralization monitors the data transmission state of entire bus network, it is based on aerial mission
Section carries out fault modeling, and the ability for having bus network failure Centralizing inspection, concentrating diagnosis, distributed treatment supports 1553B
Bus network failure is in-orbit from main process task.Satellite platform present invention is mainly applied to 1553B bus as data communication network
On, utmostly meet the needs of satellite is to 1553B malfunction monitoring and diagnosis.
The technical scheme is that a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method, steps are as follows:
(1) 1553B communications flight mission profile is extracted: firstly, system task grade flight mission profile extracts；Secondly, point
System task grade flight mission profile extracts；Again, flight mission profile extracts in subsystem task, and multistage is extracted, and grade grade is passed
Into gradually refining, obtain the flight mission profile of related to 1553B communication；To all 1553B communications flight tasks of acquisition
Section is combed, and is merged similar terms, is guaranteed the uniqueness of flight mission profile；
(2) it combs flight mission profile internal fault characteristic information: carrying out all RT, the son of 1553B communication in statistics section
Address, Content of Communication, communication length and communication timing, comb be likely to occur fault characteristic information；
(3) based on the fault modeling of flight mission profile: carrying out fault modeling, flight mission profile, fault characteristic information
The secondary index of composition is exported as mode input, fault diagnosis result as model, generates bus network knowledge base；
(4) each composition node of bus network is analyzed, selection has the small end the RT conduct of bus monitoring function, task load
Multiplexing functions object；
(5) end the RT 1553B chip being re-used is set as BM mode；Configuration selection monitoring look-up table, setting need to monitor
Message；According to system resource situation, the failed storage area in appropriate space is opened up, failed storage area is used to store communication abnormality
Information；
(6) execute message monitoring: the message in traversal monitoring command stack area identifies the message of communication abnormality；
(7) execute failed storage: if messaging state is abnormal, triggering failed storage mechanism stores unexpected message；
(8) execute fault diagnosis: traversal failed storage area extracts failure, independently obtains event by operation troubles feature database
Hinder diagnostic result；
(9) it executes fault diagnosis result distribution: requesting bus control unit by event in a manner of service request in the end RT being re-used
Barrier diagnostic result is distributed to specified terminal device；
(10) remote-control romote-sensing channel: ground is interacted by remote-control romote-sensing channel and on-orbit fault monitoring, diagnosing function,
Remote control setting malfunction monitoring Diagnostic Strategy, passes bus network fault message under telemetering.
Flight mission profile in the step (1), refer to satellite in completing entire flight course event experienced and
The temporal specification of environment, served as theme with the timing task time for describing each task phase, mission area, task environment and task
Planning.
Fault characteristic information is combed in the step (2), in conjunction with flight mission profile, is rejected design and is not considered as event in itself
The case where barrier；In conjunction with flight mission profile, dynamic select institute supervisory messages.
Fault modeling in the step (3), flight mission profile are made as level fault search condition, fault characteristic information
For secondary failure search condition.
The multiplexing functions at the end RT in the step (4) should design initial stage in system and consider, the later period is avoided to introduce multiplexing
And cause the larger change in the end RT.
Context initialization work is carried out in the step (5), specifically includes that chip operation mode setting, monitoring state is set
It sets and failed storage area opens up.
The source determined in the step (6) using message monitoring bulk state word as messaging state.
The failed storage area opened up in the step (7) is circular buffer form, after circular buffer is full, new fault message
Old fault message will be covered；The size in failed storage area, at least meet the fault message that diagnoses is not done in memory block can not be by
Covering；Fault message content includes: flight mission profile information, message monitoring bulk state word, information order word and monitoring number
According to four part of stack data block.
The end RT being re-used in the step (9) as communication passive side, cannot active dispensing failure diagnostic result, only
Bus control unit can be notified by service request mode, bus control unit auxiliary is allowed to establish the be re-used end RT and fault diagnosis result
The communication link of receiving end；Fault diagnosis result receiving end is voluntarily handled after receiving faults itself diagnostic result.
If passed under telemetering, bandwidth is more than needed, and bus network fault message can pass down in real time, ground in the step (10)
Database does full backup, for the health status of ground staff's analysis and research bus network.
Compared with the prior art, the invention has the advantages that:
(1) the present invention is based on 1553B bus monitoring functions, are a kind of centralized monitoring, diagnosing methods, compare distributed prison
Diagnostic method is surveyed, the ability that this method has bus network failure Centralizing inspection, concentrates diagnosis, distributed treatment obtains in real time
Comprehensive bus network fault message, simplifies the fault handling operation of bus network communication node.
(2) present invention need not additionally increase the bus monitoring module of standalone feature, not change system cost；Appointed based on flight
Business section carries out fault modeling, compares conventional fault modeling method, has model granularity smaller, the bigger feature of scale of model,
Can more directly, be more accurately located failure, it is more preferable to realize that 1553B bus network failure is in-orbit from main process task.
Detailed description of the invention
Fig. 1 is bus network malfunction monitoring diagnostic method figure of the present invention；
Fig. 2 is that the present invention is based on flight mission profiles to carry out fault modeling；
Fig. 3 is work flow diagram of the present invention.
Specific embodiment
A specific embodiment of the invention is further described in detail with reference to the accompanying drawing.
It is illustrated in figure 2 work flow diagram of the invention, as can be seen from Figure 2, a kind of in-orbit 1553B bus proposed by the present invention
Network Fault Detecting diagnostic method, the specific steps are as follows:
(1) 1553B communications flight mission profile is extracted: firstly, system task grade flight mission profile extracts；Secondly, point
System task grade flight mission profile extracts；Again, flight mission profile extracts in subsystem task, and multistage is extracted, and grade grade is passed
Into gradually refining, obtain the flight mission profile of related to 1553B communication；To all 1553B communications flight tasks of acquisition
Section is combed, and is merged similar terms, is guaranteed the uniqueness of flight mission profile；The flight mission profile refers to that satellite exists
The temporal specification for completing event and environment experienced in entire flight course, is served as theme with timing and describes each task phase
Task time, mission area, task environment and mission planning.
(2) it combs flight mission profile internal fault characteristic information: carrying out all RT, the son of 1553B communication in statistics section
Address, Content of Communication, communication length and communication timing, comb be likely to occur fault characteristic information；
(3) based on the fault modeling of flight mission profile: carrying out fault modeling, flight mission profile, fault characteristic information
The secondary index of composition is as mode input, and flight mission profile is as level fault search condition, fault characteristic information conduct
Secondary failure search condition, fault diagnosis result are exported as model, generate bus network knowledge base；
(4) each composition node of bus network is analyzed, selection has the small end the RT conduct of bus monitoring function, task load
Multiplexing functions object；
(5) end the RT 1553B chip being re-used is set as BM mode；Configuration selection monitoring look-up table, setting need to monitor
Message；According to system resource situation, the failed storage area in appropriate space is opened up, failed storage area is used to store communication abnormality
Information；
(6) execute message monitoring: the message in traversal monitoring command stack area identifies the message of communication abnormality；
(7) execute failed storage: if messaging state is abnormal, triggering failed storage mechanism stores unexpected message；
(8) execute fault diagnosis: traversal failed storage area extracts failure, independently obtains event by operation troubles feature database
Hinder diagnostic result；
(9) it executes fault diagnosis result distribution: requesting bus control unit by event in a manner of service request in the end RT being re-used
Barrier diagnostic result is distributed to specified terminal device；
(10) remote-control romote-sensing channel: ground is interacted by remote-control romote-sensing channel and on-orbit fault monitoring, diagnosing function,
Remote control setting malfunction monitoring Diagnostic Strategy, passes bus network fault message under telemetering.
Fault characteristic information is combed in the step (2), in conjunction with flight mission profile, is rejected design and is not considered as event in itself
The case where barrier；In conjunction with flight mission profile, dynamic select institute supervisory messages.
The multiplexing functions at the end RT in the step (4) should design initial stage in system and consider, the later period is avoided to introduce multiplexing
And cause the larger change in the end RT.
Context initialization work is carried out in the step (5), specifically includes that chip operation mode setting, monitoring state is set
It sets and failed storage area opens up.
The source determined in the step (6) using message monitoring bulk state word as messaging state.
The failed storage area opened up in the step (7) is circular buffer form, after circular buffer is full, new fault message
Old fault message will be covered；The size in failed storage area, at least meet the fault message that diagnoses is not done in memory block can not be by
Covering；Fault message content includes: flight mission profile information, message monitoring bulk state word, information order word and monitoring number
According to four part of stack data block.
The end RT being re-used in the step (9) as communication passive side, cannot active dispensing failure diagnostic result, only
Bus control unit can be notified by service request mode, bus control unit auxiliary is allowed to establish the be re-used end RT and fault diagnosis result
The communication link of receiving end；Fault diagnosis result receiving end is voluntarily handled after receiving faults itself diagnostic result.
If passed under telemetering, bandwidth is more than needed, and bus network fault message can pass down in real time, ground in the step (10)
Database does full backup, for the health status of ground staff's analysis and research bus network
Centralization monitors the data transmission state of entire bus network, realizes bus network relevant to flight mission profile
Knowledge base, the ability for having bus network failure Centralizing inspection, concentrating diagnosis, distributed treatment support 1553B bus network
Network failure is in-orbit from main process task, has effectively ensured the reliability of satellite bus communication.
The present invention is applied in having emitted satellite, achieves better effects.Orbital detection shows to apply the present invention
After method, 1553B bus index meets the index request of task.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Claims (8)
1. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method, it is characterised in that steps are as follows:
(1) 1553B communications flight mission profile is extracted: firstly, system task grade flight mission profile extracts；Secondly, subsystem
Task level flight mission profile extracts；Again, flight mission profile extracts in subsystem task, and multistage is extracted, and grade grade is progressive, by
Step refinement obtains the flight mission profile of related to 1553B communication；To all 1553B communications flight mission profiles of acquisition
It is combed, merges similar terms, guarantee the uniqueness of flight mission profile；
(2) it combs flight mission profile internal fault characteristic information: carrying out all remote terminals of 1553B communication in statistics section
RT, subaddressing, Content of Communication, communication length and communication timing, comb be likely to occur fault characteristic information；
(3) based on the fault modeling of flight mission profile: carrying out fault modeling, flight mission profile, fault characteristic information composition
Secondary index as mode input, fault diagnosis result is exported as model, generates bus network knowledge base；
(4) each composition node of bus network is analyzed, selection has the small end remote terminal RT of bus monitoring function, task load
As multiplexing functions object；
(5) end the remote terminal RT 1553B chip being re-used is set as bus monitoring Mode B M；Configuration selection monitoring look-up table,
Setting needs the message monitored；According to system resource situation, the failed storage area in appropriate space is opened up, failed storage area is used to store up
Deposit the information of communication abnormality；
(6) execute message monitoring: the message in traversal monitoring command stack area identifies the message of communication abnormality；
(7) execute failed storage: if messaging state is abnormal, triggering failed storage mechanism stores unexpected message；
(8) execute fault diagnosis: traversal failed storage area extracts failure, so autonomous that be out of order and examine by operation troubles feature database
Disconnected result；
(9) it executes fault diagnosis result distribution: requesting bus control unit in a manner of service request in the end remote terminal RT being re-used
Fault diagnosis result is distributed to specified terminal device；
(10) remote-control romote-sensing channel: ground is interacted by remote-control romote-sensing channel and on-orbit fault monitoring, diagnosing module, remote control
Malfunction monitoring Diagnostic Strategy is set, bus network fault message is passed under telemetering；
Flight mission profile in the step (1) refers to satellite event experienced and environment in completing entire flight course
Temporal specification, the task time for describing each task phase of being served as theme with timing, mission area, task environment and task rule
It draws.
2. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method according to claim 1, it is characterised in that: institute
It states and combs fault characteristic information in step (2), in conjunction with flight mission profile, reject the case where design is not considered as failure in itself；
In conjunction with flight mission profile, dynamic select institute supervisory messages.
3. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method according to claim 1, it is characterised in that: institute
Fault modeling in step (3) is stated, flight mission profile is as level fault search condition, fault characteristic information as secondary failure
Search condition.
4. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method according to claim 1, it is characterised in that: institute
It states and carries out context initialization work in step (5), comprising: chip operation mode setting, monitoring state setting and failed storage
It opens up in area.
5. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method according to claim 1, it is characterised in that: institute
State the source determined in step (6) using message monitoring bulk state word as messaging state.
6. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method according to claim 1, it is characterised in that: institute
Stating the failed storage area opened up in step (7) is circular buffer form, and after circular buffer is full, new fault message will cover old
Fault message；The size in failed storage area, at least meeting the fault message for not doing and diagnosing in memory block can not be capped；Failure letter
Breath content includes: flight mission profile information, message monitoring bulk state word, information order word and monitoring data base data block four
Part.
7. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method according to claim 1, it is characterised in that: institute
State the passive side of the end remote terminal RT that is re-used in step (9) as communication, cannot active dispensing failure diagnostic result, can only
Bus control unit is notified by service request mode, is allowed bus control unit auxiliary to establish the end remote terminal RT that is re-used and is examined with failure
The communication link of disconnected result receiving end；Fault diagnosis result receiving end is voluntarily handled after receiving faults itself diagnostic result.
8. a kind of in-orbit 1553B bus network malfunction monitoring diagnostic method according to claim 1, it is characterised in that: institute
It states in step (10) and has more than needed if passing bandwidth under telemetering, bus network fault message can pass down in real time, and ground data library is finished
Part is reorganized and outfit, for the health status of ground staff's analysis and research bus network.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111044936A (en) * | 2019-11-28 | 2020-04-21 | 中国航空工业集团公司西安航空计算技术研究所 | Airborne GJB289A bus cable fault rapid positioning method |
| CN113268367B (en) * | 2021-04-26 | 2023-07-14 | 北京控制工程研究所 | On-orbit monitoring and maintaining method for 1553B bus RT terminal address lookup table |
| CN113268369B (en) * | 2021-04-26 | 2022-12-16 | 上海卫星工程研究所 | On-board computer fault diagnosis processing method and system based on working state report |
| CN113794507B (en) * | 2021-09-10 | 2024-01-09 | 上海卫星工程研究所 | Autonomous fault processing method and system based on-orbit route switching |
| CN115202921B (en) * | 2022-09-16 | 2022-11-25 | 北京紫光芯能科技有限公司 | Fault diagnosis signal indicating device |
| CN116866160B (en) * | 2023-09-05 | 2023-11-21 | 空间液态金属科技发展(江苏)有限公司 | Design method for improving reliability of spacecraft network system |
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