CN107070762A - A kind of fault detect for taking into account 1553B double character coupling performance monitorings and switching method - Google Patents
A kind of fault detect for taking into account 1553B double character coupling performance monitorings and switching method Download PDFInfo
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- CN107070762A CN107070762A CN201710148134.1A CN201710148134A CN107070762A CN 107070762 A CN107070762 A CN 107070762A CN 201710148134 A CN201710148134 A CN 201710148134A CN 107070762 A CN107070762 A CN 107070762A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
- H04L12/40176—Flexible bus arrangements involving redundancy
- H04L12/40189—Flexible bus arrangements involving redundancy by using a plurality of bus systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/4028—Bus for use in transportation systems the transportation system being an aircraft
Abstract
A kind of fault detect for taking into account 1553B double character coupling performance monitorings and switching method, the test phase before aircraft takeoff, A, a part of 1553B bus datas communication is carried out on B double character couplings, by monitoring bus data in real time with the presence or absence of frame losing, error code, the data such as data re-transmitting, each passage of 1553B double character couplings and the performance of bus node can effectively be monitored, the method for carrying out data communication before the taking off of more traditional double character coupling only on single channel, communication performance that can be effectively to double character coupling is monitored in real time, the failure in bus is found early.Simultaneously, the present invention is provided with the bus switch method in the case of different fault detect and failure for the different nodes in bus network, in the case of being able to ensure that bus node breaks down in aerocraft system flight course, failover is carried out in real time, ensure that bus communication network is working properly, it is ensured that the reliability of flight.
Description
Technical field
The present invention relates to a kind of fault detect for taking into account 1553B double character coupling performance monitorings and switching method, belong to logical
Interrogate technical field.
Background technology
1553B buses are a kind of time segmentation, command/response formula multiplexed data bus, and transmission rate is 1Mb/s.
Generally, flight control modules are as bus control unit BC, and it is total that each intelligent object acts on RT mountings by 1553B bus protocols chip
On line, flying quality acquisition module monitors bus data in real time as bus monitor.The transmission of all signals is all controlled by BC
System, MT can obtain all signals in bus automatically.1553B data communication bus mode is adopted extensively in various models
It is clearly demarcated with, whole layout hierarchy, also cause fault location quick and precisely while compatible difference carrying platform, malfunction elimination compared with
It is preceding more quick.
It is widely used that 1553B buses are subjected to dual redundant design to further enhance the reliability of 1553B bus network,
Aerocraft system carries out self-checking only in system electrification to bus A, B mostly at present, and self-inspection is worked by rear 1553B buses
In A buses, when A buses break down, switching at runtime is carried out to bus.Therefore, under normal condition, the functional test to B buses
It is relatively fewer, it is impossible to which that B bus functionalitys and performance are fully examined, it is difficult to find the event such as B bus network hydraulic performance declines early
Barrier.
The content of the invention
The technology of the present invention solves problem：The deficiencies in the prior art are overcome to take into account 1553B dual bus nets there is provided one kind
The fault detect of network performance monitoring and switching method, can fully take into account the function of 1553B dual bus, performance by this method and survey
Examination, it is ensured that fully detected to A, B bus of 1553B double character couplings in the aircraft takeoff last stage, to ensure flying
Dual bus is in normal operating conditions during row.Meanwhile, this method ensure that bus node occurs in flight course
The switching at runtime of communication bus is carried out in the case of communication failure, it is ensured that 1553B bus network is working properly.
The present invention technical solution be：
A kind of fault detect for taking into account 1553B double character coupling performance monitorings and switching method, the 1553B dual bus net
Network includes bus monitoring node M T, Bus Control Node BC and bus termination node R T；Including：For bus monitoring node
It is fault detect and failover, bus node fault detect and failover that flight control is not involved in for bus data, right
The bus node fault detect and failover of flight control are participated in bus data.
It is described to be detected for bus monitoring node failure and failover, specifically include following steps：
(2.1) 1553B buses on aircraft are set as being operated in RT → BC and BC → RT both of which, both patterns
Master control is used as by BC；
(2.2) before aircraft initiates to fly, setting BC and RT is operated in A bus runs, and setting MT is operated in B buses and led to
Road, and before aircraft initiates to fly, do not allow switching between A bus runs and B bus runs, can only operate in set in advance
Bus run；
(2.3) in aircraft takeoff, row bus working condition is entered to A, B bus by BC control 1553B double character couplings
All nodes are switched to A bus runs after passing through and communicated by test, test；
(2.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, when MT sections
Point break down and retry three times still can not normal communication when, all nodes are switched to B and led in 1553B double character couplings
Road, to ensure that MT nodes can obtain the bus data of each node；
(2.5) if MT nodes channel B break down and retry three times still can not normal communication when, no longer switch back into
A channel.
It is described for bus data be not involved in flight control bus node fault detect and failover, specifically include as
Lower step：
(3.1) 1553B buses on aircraft are set as being operated in RT → BC and BC → RT both of which, both patterns
Master control is used as by BC；
(3.2) before aircraft takeoff, setting BC and RT is operated in A bus runs, and setting MT is operated in B bus runs,
And do not allow switching before aircraft takeoff, between A bus runs and B bus runs, it can only operate in bus set in advance
Passage；
(3.3) in aircraft takeoff, row bus working condition is entered to A, B bus by BC control 1553B double character couplings
All nodes are switched to A bus runs after passing through and communicated by test, test；
(3.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, works as bus
Bus data in terminal node RT be not involved in flight control bus node RT1 break down and retry three times still can not be normal
During communication, node R T1 is switched into channel B, other nodes do not switch；
(3.5) if node R T1 channel B break down and retry three times still can not normal communication when, no longer switch
Return A channel, it is to avoid bus is switched to the extra consumption of bus marco increase repeatedly, to ensure the reliability of flight control.
The bus node fault detect and failover controlled that participate in flying for bus data, is specifically included as follows
Step：
(4.1) 1553B buses on aircraft are set as being operated in RT → BC and BC → RT both of which, both patterns
Master control is used as by BC；
(4.2) before aircraft takeoff, setting BC and RT is operated in A bus runs, and setting MT is operated in B bus runs,
And do not allow switching before aircraft takeoff, between A bus runs and B bus runs, it can only operate in bus set in advance
Passage；
(4.3) in aircraft takeoff, row bus working condition is entered to A, B bus by BC control 1553B double character couplings
All nodes are switched to A bus runs after passing through and communicated by test, test；
(4.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, works as bus
Bus data in terminal node RT participates in flying bus node RT2 or the RT3 failure controlled and retrying three times still can not
During normal communication, node R T2 or RT3 that node breaks down are switched into channel B, other nodes do not switch；
(4.5) if node R T2 or RT3 channel B break down and retry three times still can not normal communication when, then by its
A channel is switched back to, to improve the reliability of aerocraft system flight.
In 1553B double character couplings, bus monitoring node M T only has one, and Bus Control Node BC only has one.
Compared with the prior art, the invention has the advantages that：
The 1553B bus failures for taking into account A, B dual bus detection of the present invention and failure switching method, can not increase
Fully the bus functionality and performance of A, B dual bus are effectively monitored under conditions of CPU burdens, before take-off the stage send out in time
Existing bus network is with the presence or absence of failures such as hydraulic performance declines, it is ensured that 1553B double character couplings work just before aerocraft system takes off
Often, the flight reliability of aerocraft system is ensured.Meanwhile, this method, can be real-time in the case where bus node breaks down
Carry out failover, it is ensured that bus communication network is working properly.
Brief description of the drawings
Fig. 1 is typical aircraft system 1553B double character coupling bus website distribution maps；
Embodiment
The embodiment to the present invention is further described in detail below in conjunction with the accompanying drawings.
A kind of fault detect for taking into account 1553B double character coupling performance monitorings proposed by the present invention and failure switching method,
A part of 1553B bus datas communication is carried out on the test phase before aircraft takeoff, A, B double character coupling, by real-time
Bus data is monitored with the presence or absence of data such as frame losing, error code, data re-transmittings, each of 1553B double character couplings can be effectively monitored
The side of data communication is carried out before the performance of individual passage and bus node, the taking off of more traditional double character coupling only on single channel
Method, communication performance that can be effectively to double character coupling is monitored in real time, and the failure in bus is found early.Meanwhile, this hair
The bright different nodes in bus network are provided with the bus switch method in the case of different fault detect and failure, can
In the case of ensuring that bus node breaks down in aerocraft system flight course, failover is carried out in real time, it is ensured that bus
Communication network is working properly, it is ensured that the reliability of flight.
A kind of 1553B bus failures detection for taking into account A, B dual bus of the present invention and failure switching method, improve tradition
The reliability of 1553B double character couplings, realizes the performance monitoring to two bus runs of A, B in double character coupling and failure situation
Under bus switch in real time.
A kind of 1553B bus failures detection for taking into account A, B dual bus of the present invention and failure switching method are double by taking into account A, B
Bus switch method two parts composition in the case of the 1553B bus failures detection method and failure of bus.Accompanying drawing 1 is that typical case flies
The 1553B bus network bus website distribution maps of row device system, with reference to accompanying drawing 1, specific implementation of the invention is as follows：
The 1553B bus network of typical aircraft system is by the flight control modules as BC, the test mould as RT1
Block, the inertia measuring module as RT2, the actuating mechanism controls module as RT3, the flying quality acquisition module as MT and
A, B dual bus are collectively formed.
In flight course, it is responsible for completing navigation, guidance and gesture stability computing, collection as BC flight control modules
The data of each remote terminal, are the nerve centers of aerocraft system.Each module uses the scheme of self-test, each end on aircraft
End station point is by the test mode parameter of its own system by bus feedback to BC.As RT1 test module, its test data is simultaneously
Aircraft flight control is not involved in, flight trial evaluation is used only as and uses；To be responsible for completing to fly as RT2 inertia measuring module
Row device posture and speed, the measurement of positional information, its test data need to feed back to flight control modules, for flight control mould
Block completes flight attitude control；Need to be responsible for completing the finger according to flight control modules as RT3 actuating mechanism controls module
Make data completion executing agency performs control, and result is fed back into flight control modules.Flight control modules, inertia measurement
Module, actuating mechanism controls module three's collective effect, complete the flight control of aircraft.Flying quality acquisition module is with MT moulds
Formula is hung in 1553B bus network as a point of termination station of bus network, is responsible for carrying out the information of all bus transfers
Record.It should be noted that in the 1553B double character couplings of flight control system, bus monitoring node M T only has one, always
Line traffic control node BC only has one, and bus termination node R T quantity can need to be increased and decreased according to system, typically no less than 1
Individual, terminal node RT includes three, respectively RT1, RT2 and RT3 in the present invention.
In order to ensure bus is working properly, while ensureing that bus data is reliably obtained, the present invention is in bus network
Different nodes are provided with the bus switch method in the case of different fault detect and failure, including：For bus monitoring node
It is fault detect and failover, bus node fault detect and failover that flight control is not involved in for bus data, right
The bus node fault detect and failover of flight control are participated in bus data, it is specific as follows：
1st, for the detection of bus monitoring node failure and failover, following steps are specifically included：
(1.1) 1553B buses on aircraft are set as only being operated in RT → BC and BC → RT both of which, both moulds
Formula, as master control, simplifies software development and the bus integrity check of each node, improves 1553B bus network by BC
Reliability；
(1.2) before aircraft initiates to fly, setting BC and RT is operated in A bus runs, and setting MT is operated in B buses and led to
Road, and before aircraft initiates to fly, do not allow switching between A bus runs and B bus runs, can only operate in set in advance
Bus run, so that the communication performance effectively to double character coupling before aircraft takeoff is monitored in real time, finds total early
Failure on line, it is ensured that before aircraft takeoff, double character coupling is in normal operating conditions；
(1.3) in aircraft takeoff, row bus working condition is entered to A, B bus by BC control 1553B double character couplings
All nodes are switched to A bus runs after passing through and communicated by test, test；
(1.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, when MT sections
Point break down and retry three times still can not normal communication when, all nodes are switched to B and led in 1553B double character couplings
Road, to ensure that MT nodes can obtain the bus data of each node；
(1.5) if MT nodes channel B break down and retry three times still can not normal communication when, no longer switch back into
A channel.
2nd, the bus node fault detect and failover of flight control are not involved in for bus data, is specifically included as follows
Step：
(2.1) 1553B buses on aircraft are set as only being operated in RT → BC and BC → RT both of which, both moulds
Formula, as master control, simplifies software development and the bus integrity check of each node, improves 1553B bus network by BC
Reliability；
(2.2) before aircraft initiates to fly, setting BC and RT is operated in A bus runs, and setting MT is operated in B buses and led to
Road, and before aircraft initiates to fly, do not allow switching between A bus runs and B bus runs, can only operate in set in advance
Bus run, so that the communication performance effectively to double character coupling before aircraft takeoff is monitored in real time, finds total early
Failure on line, it is ensured that before aircraft takeoff, double character coupling is in normal operating conditions；
(2.3) in aircraft takeoff, row bus working condition is entered to A, B bus by BC control 1553B double character couplings
All nodes are switched to A bus runs after passing through and communicated by test, test；
(2.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, works as bus
Data be not involved in flight control bus node (RT1) break down and retry three times still can not normal communication when, by node R T1
Channel B is switched to, other nodes do not switch；
(2.5) if RT1 channel B break down and retry three times still can not normal communication when, no longer switch back into A lead to
Road, it is to avoid bus is switched to the extra consumption of bus marco increase repeatedly, to ensure the reliability of flight control.
3rd, participate in flying the bus node fault detect and failover controlled for bus data, specifically includes following step
Suddenly：
(3.1) 1553B buses on aircraft are set as only being operated in RT → BC and BC → RT both of which, both moulds
Formula, as master control, simplifies software development and the bus integrity check of each node, improves 1553B bus network by BC
Reliability；
(3.2) before aircraft initiates to fly, setting BC and RT is operated in A bus runs, and setting MT is operated in B buses and led to
Road, and before aircraft initiates to fly, do not allow switching between A bus runs and B bus runs, can only operate in set in advance
Bus run, so that the communication performance effectively to double character coupling before aircraft takeoff is monitored in real time, finds total early
Failure on line, it is ensured that before aircraft takeoff, double character coupling is in normal operating conditions；
(3.3) in aircraft takeoff, row bus working condition is entered to A, B bus by BC control 1553B double character couplings
All nodes are switched to A bus runs after passing through and communicated by test, test；
(3.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, works as bus
Data participate in flight control bus node (RT3) break down and retry three times still can not normal communication when, node R T3 is cut
Channel B is shifted to, other nodes do not switch；
(3.5) if RT3 channel B break down and retry three times still can not normal communication when, then switched back to A and led to
Road, to improve the reliability of aerocraft system flight.
To sum up, the present invention takes following two corrective measures on the basis of traditional 1553B double character couplings：
(a) bus communication mechanism is respectively positioned on unified bus by traditional all bus datas before taking off, another bus
It is changed into bus data carrying out Rational Classification in simple warm standby state, two bus network of A, B are simultaneously in running order
The bus failure detection method for taking into account A, B dual bus data performance；
(b) all bus nodes are operated in A buses after taking off, according to there is the section of communication failure in flight course
The difference (BC, RT, MT) of point, performs different bus switch mechanism, it is ensured that in case of a failure, still ensure that
Bus data communication is normal, it is ensured that the reliability of flight control system.
Based on above two change, the present invention devises a kind of 1553B double character couplings performance prison for taking into account A, B dual bus
The fault detect of survey and switching method, improve the reliability of traditional 1553B double character couplings, realize in double character coupling
Bus in the case of the performance monitoring of two bus runs of A, B and failure switches in real time.
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (5)
1. a kind of fault detect for taking into account 1553B double character coupling performance monitorings and switching method, the 1553B double character couplings
Include bus monitoring node M T, Bus Control Node BC and bus termination node R T；It is characterized in that including：For bus
Monitoring node fault detect and failover, the bus node fault detect that flight control is not involved in for bus data and failure
Switching, the bus node fault detect and failover that flight control is participated in for bus data.
2. a kind of fault detect for taking into account 1553B double character coupling performance monitorings according to claim 1 and switching method,
It is characterized in that：It is described to be detected for bus monitoring node failure and failover, specifically include following steps：
(2.1) 1553B buses on aircraft are set as being operated in RT → BC and BC → RT both of which, both patterns by
BC is used as master control；
(2.2) before aircraft initiates to fly, setting BC and RT is operated in A bus runs, and setting MT is operated in B bus runs, and
Before aircraft initiates to fly, do not allow switching between A bus runs and B bus runs, can only operate in bus set in advance
Passage；
(2.3) in aircraft takeoff, the test of row bus working condition is entered to A, B bus by BC control 1553B double character couplings,
All nodes are switched to A bus runs after passing through and communicated by test；
(2.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, when MT nodes go out
Existing failure and retry three times still can not normal communication when, all nodes are switched to channel B in 1553B double character couplings, with
Ensure that MT nodes can obtain the bus data of each node；
(2.5) if MT nodes channel B break down and retry three times still can not normal communication when, no longer switch back into A lead to
Road.
3. a kind of fault detect for taking into account 1553B double character coupling performance monitorings according to claim 1 and switching method,
It is characterized in that：The bus node fault detect and failover that flight control is not involved in for bus data, specific bag
Include following steps：
(3.1) 1553B buses on aircraft are set as being operated in RT → BC and BC → RT both of which, both patterns by
BC is used as master control；
(3.2) before aircraft takeoff, setting BC and RT is operated in A bus runs, and setting MT is operated in B bus runs, and
Do not allow switching before aircraft takeoff, between A bus runs and B bus runs, can only operate in bus run set in advance；
(3.3) in aircraft takeoff, the test of row bus working condition is entered to A, B bus by BC control 1553B double character couplings,
All nodes are switched to A bus runs after passing through and communicated by test；
(3.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, works as bus termination
Bus data in node R T be not involved in flight control bus node RT1 break down and retry three times still can not normal communication
When, node R T1 is switched into channel B, other nodes do not switch；
(3.5) if node R T1 channel B break down and retry three times still can not normal communication when, no longer switch back into A lead to
Road, it is to avoid bus is switched to the extra consumption of bus marco increase repeatedly, to ensure the reliability of flight control.
4. a kind of fault detect for taking into account 1553B double character coupling performance monitorings according to claim 1 and switching method,
It is characterized in that：The bus node fault detect and failover controlled that participate in flying for bus data, is specifically included
Following steps：
(4.1) 1553B buses on aircraft are set as being operated in RT → BC and BC → RT both of which, both patterns by
BC is used as master control；
(4.2) before aircraft takeoff, setting BC and RT is operated in A bus runs, and setting MT is operated in B bus runs, and
Do not allow switching before aircraft takeoff, between A bus runs and B bus runs, can only operate in bus run set in advance；
(4.3) in aircraft takeoff, the test of row bus working condition is entered to A, B bus by BC control 1553B double character couplings,
All nodes are switched to A bus runs after passing through and communicated by test；
(4.4) after aircraft takeoff, each node on 1553B double character couplings is operated in A bus runs, works as bus termination
The bus node RT2 or RT3 of bus data participation flight control in node R T break down and retry three times still can not be normal
During communication, node R T2 or RT3 that node breaks down are switched into channel B, other nodes do not switch；
(4.5) if node R T2 or RT3 channel B break down and retry three times still can not normal communication when, then by its switchback
To A channel, to improve the reliability of aerocraft system flight.
5. according to any described a kind of fault detect for taking into account 1553B double character coupling performance monitorings in Claims 1 to 4 and
Switching method, it is characterised in that：In 1553B double character couplings, bus monitoring node M T only has one, and Bus Control Node BC is only
There is one.
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| CN109347542A (en) * | 2018-11-23 | 2019-02-15 | 江西洪都航空工业集团有限责任公司 | A kind of Aerospace vehicle test data transmission method based on 1553B bus |
| CN109799839A (en) * | 2018-12-24 | 2019-05-24 | 北京青云航空仪表有限公司 | A kind of automatic flight control assemblies |
| CN111541584A (en) * | 2020-04-20 | 2020-08-14 | 上海航天测控通信研究所 | 1553B data transmission reliability test method, device and storage medium |
| CN111708313A (en) * | 2020-04-28 | 2020-09-25 | 北京骥远自动化技术有限公司 | PLC system capable of realizing efficient transmission and data transmission method thereof |
| CN112046776A (en) * | 2020-09-07 | 2020-12-08 | 中国航空工业集团公司成都飞机设计研究所 | Ground comprehensive warning method for unmanned aerial vehicle |
| CN112118165A (en) * | 2020-09-09 | 2020-12-22 | 天津津航计算技术研究所 | 1553B bus message channel switching control method |
| CN113960920A (en) * | 2021-09-15 | 2022-01-21 | 中国航空工业集团公司西安飞机设计研究所 | 1553B bus dual-redundancy bus controller switching method |
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