CN112685888B - Three-redundancy fly-pipe system and information stream processing method thereof - Google Patents
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Abstract
The application provides an information flow processing method of a three-redundancy fly-pipe system, which comprises the following steps: obtaining information flow of each fly pipe computer in the three-redundancy fly pipe system; constructing a relative position information stream according to the information stream of each femto computer, wherein the relative position information stream sequentially comprises a first information stream representing a self sending port of the femto computer, a second information stream representing a first receiving port of the femto computer and a third information stream representing a second receiving port of the femto computer; and before the periodic task is finished, comparing the relative position information flow with a relative position information flow calculating table built in the flywheel computer to realize the calculation of the relative information flow. The information flow processing method provided by the application adopts the relative position information to design, so that the position information among all redundancy is not needed to be calculated at the beginning of a task, the calculation operation is put at the end of each period of task, and the calculation is performed before man-machine interaction, so that the control law instruction calculation time is shortened.
Description
Technical Field
The application belongs to the technical field of flight control, and particularly relates to a three-redundancy fly-pipe system and an information flow processing method thereof.
Background
The flight management system (called as a fly pipe system for short) is a key component of a modern aircraft, is a system for comprehensively controlling and managing flight, power, electromechanics, tasks and other systems, and is a key guarantee for completing flight tasks.
The flight tube computer is core equipment of the whole flight tube system, and realizes comprehensive control and management of the aircraft by collecting various parameters and data of the aircraft in the flight process and through operations such as synchronization, voting, monitoring, control law resolving, fault synthesis, fault recording, fault recovery, fault reporting and the like, and a comprehensive control and management cycle task schematic diagram is shown in figure 1.
The safety and reliability of the flight tube computer will directly relate to the flight quality and flight safety of the aircraft.
Therefore, redundancy management is one of the common methods for improving reliability and security. The redundancy management is to use multiple identical systems to accomplish the same task, the systems run on independent hardware, and the systems interact with each other through cross transmission. When a certain system fails, the safety and reliability of the whole fly-pipe system are maintained through technical means such as fault isolation and system reconstruction.
The fly-pipe system is a strong real-time system, and requires that the control law can calculate instruction information as early as possible, so that the aircraft can respond as early as possible, and information such as the attitude, the position and the like of the aircraft can be controlled.
As shown in the control management periodic task schematic diagram of fig. 2, T0 is a control law command output time, and T1 is a periodic task end time.
At the beginning of a traditional periodic task, each flight tube computer confirms the absolute position information of the flight tube computer by inquiring the respective hardware, and confirms the absolute position relation of other flight tube computers by inquiring and wrapping the instructions of other flight tube computers. However, in this design mode, the time for judgment, inquiry and calculation is increased, so that the output time of the control law command is increased, and the time of T0 and T1 is prolonged.
Therefore, an optimal design method for solving the above problems must be sought, so that the design of the redundancy management information flow can save the period task time, improve the information flow efficiency, and facilitate the unified processing and multiplexing of the information flow.
Disclosure of Invention
The purpose of the invention is that: the three-redundancy fly-pipe system and the information stream processing method thereof are provided, so that the design of redundancy management information streams can save periodic task time, improve the information stream efficiency and facilitate unified processing and multiplexing of the information streams.
On the one hand, the technical scheme of the application is as follows: an information flow processing method of a three-redundancy fly-pipe system, comprising:
obtaining information flow of each fly pipe computer in the three-redundancy fly pipe system;
constructing a relative position information stream according to the information stream of each femto computer, wherein the relative position information stream sequentially comprises a first information stream representing a self sending port of the femto computer, a second information stream representing a first receiving port of the femto computer and a third information stream representing a second receiving port of the femto computer;
and before the periodic task is finished, comparing the relative position information flow with a relative position information flow calculating table built in the flywheel computer to realize the calculation of the relative information flow.
Further, in the first information stream, the second information stream and the third information stream, the available state of the information stream is represented by a first mark, and the unavailable state of the information stream is represented by a second mark.
Further, the first flag is "1" and the second flag is "0".
On the one hand, the technical scheme of the application is as follows: a three-redundancy fly-pipe system, the three-redundancy fly-pipe system comprising:
the system comprises a first flight tube computer, a second flight tube computer and a third flight tube computer, wherein each flight tube computer is provided with a transmitting interface for transmitting information to other two flight tube computers and a first receiving interface and a second receiving interface for receiving information of other two flight tube computers;
each of the flywheel computers obtains information flows of the flywheel computers and other flywheel computers in the three-redundancy flywheel system; constructing a relative position information stream according to the information stream of each femto computer, wherein the relative position information stream sequentially comprises a first information stream representing a self sending port of the femto computer, a second information stream representing a first receiving port of the femto computer and a third information stream representing a second receiving port of the femto computer; and before the periodic task is finished, comparing the relative position information flow with a relative position information flow calculating table built in the flywheel computer to realize the calculation of the relative information flow.
Further, in the first information stream, the second information stream and the third information stream, the available state of the information stream is represented by a first mark, and the unavailable state of the information stream is represented by a second mark.
Further, the first flag is "1" and the second flag is "0".
The information flow processing method of the three-redundancy fly-pipe system is designed by adopting the relative position information, so that the position information among all redundancy is not needed to be calculated at the beginning of a task, the calculation operation is put at the end of each period of task, and the calculation is performed before man-machine interaction, so that the control law instruction calculation time is shortened.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following description will briefly refer to the accompanying drawings. It will be apparent that the figures described below are only some embodiments of the present application.
Fig. 1 is a schematic diagram of integrated control management in the prior art.
Fig. 2 is a schematic diagram of a control management cycle task in the prior art.
Fig. 3 is a schematic diagram of the relative position design of the three-redundancy fly-pipe system information flow of the present application.
Fig. 4 is a conventional three-redundancy fly-pipe system information flow.
Fig. 5 is a three-redundancy flit system information flow in the present application.
Fig. 6 is a schematic diagram of task optimization for a control management cycle of the present application.
Detailed Description
In order to make the purposes, technical solutions and advantages of the implementation of the present application more clear, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.
In order to achieve the above objective, the present invention provides an information flow processing method of a three-redundancy fly-pipe system, which records the three-redundancy fly-pipe system redundancy management information flow by adopting a three-redundancy relative position relationship in a unified format, and only considers the relative position relationship in the internal processing process of a computer and only performs a solution when man-machine interaction is performed, thereby defining the source of the information flow.
The specific embodiments of the present invention are as follows:
1) As shown in fig. 3, the three-redundancy flier computers A, B, C constitute a three-redundancy flier system, S1 is a transmission data port of the flier computer a, X1 is a reception port 1 of the flier computer a, and Y1 is a reception port 2 of the flier computer a; s2 represents a transmitting data port of the flight tube computer B, X2 represents a receiving port 1 of the flight tube computer B, and Y2 represents a receiving port 2 of the flight tube computer B; s3 denotes a transmission data port of the flywheel computer C, X3 denotes a reception port 1 of the flywheel computer C, and Y3 denotes a reception port 2 of the flywheel computer C.
2) As shown in fig. 4, the information flow of the three-redundancy fly-pipe system in the prior art generally adopts an absolute position design.
In D A Information flow representing fly-pipe computer A, D B Information flow representing fly-pipe computer B, D C Representing the information flow of the fly-pipe computer C.
And each flight tube computer confirms the absolute position information of the flight tube computer by inquiring the respective hardware, and confirms the absolute position information of other flight tube computers by inquiring and wrapping the instructions of other flight tube computers. Therefore, in the initial period of the periodic task, it is necessary to confirm the absolute position information through a plurality of processes such as judgment, inquiry, calculation, etc., which results in an extension of the task period and the control law command calculation period.
3) As shown in fig. 5, the information flow of the three-redundancy fly-pipe system is designed according to the relative position.
In D S Information flow representing the fly-pipe computer itself, D for fly-pipe computer A S1 D for the fly-tube computer B S2 D for the fly-tube computer C S3 ；
D X Representing the flow of information of a flight tube computer connected to the X port of the flight tube computer, wherein D is the flight tube computer A X1 D for the fly-tube computer B X2 D for the fly-tube computer C X3 ；
D Y Representing the flow of information of the fly-pipe computer connected to the Y port of the fly-pipe computer, D for the fly-pipe computer A Y1 D for the fly-tube computer B Y2 D for the fly-tube computer C Y3 。
The original basis of taking the position information of the flight tube computer as the design information flow is changed into the basis of taking the sending and receiving data ports of the flight tube computer as the design basis. For any of the flight tube computers, S represents the position of the own information flow, X represents the information flow position of the flight tube computer connected with the X port, and Y represents the information flow position of the flight tube computer connected with the Y port.
For a three-redundancy fly-pipe computer, the information flows are in a uniform information flow format, specific redundancy sources of the information flows do not need to be defined in the initial stage of information interaction, and only the information flows need to be resolved when man-machine interaction is performed before the periodic task is finished. The three-redundancy flight tube computer also has the same information flow processing mode, so that the processing time for carrying out flight tube computer position information judgment, calculation, inquiry and the like in the input processing at the initial stage of the periodic task is reduced, and the control law instruction time T0 and the periodic task time T1 are shortened, as shown in fig. 6.
4) The calculation may be performed once during human-computer interaction before the end of the periodic task, as shown in table 1.
That is to say D Y D X D S The information stream design of the format is D for the fly-pipe computer A C D B D A Information flow design, D for the fly-pipe computer B A D C D B Information flow design for flyTube computer C is D B D A D C Information flow design of the formula.
TABLE 1 three-redundancy fly-tube computer relative position and absolute position relationship
If the available state of the information flow is represented by "1", and "0" represents the unavailable state of the information flow, D Y D X D S The format information stream has 8 states in total, and the specific meaning of the information stream is calculated as shown in table 2.
Table 2 relative position information flow calculating table
For example, fly tube computer A and D Y D X D S When the information stream is 2 (010), D thereof C D B D A Format information stream 2 (010), fly-pipe computer B its D Y D X D S When the information stream is 5 (101), D thereof C D B D A Format information stream 3 (011), fei computer C and D Y D X D S When the information flow is 6 (110), its D C D B D A The format information stream is 3 (011). The corresponding D can be obtained by only one look-up table C D B D A The information flow format information is transmitted through the man-machine interaction function, so that the settlement time of control law instructions is saved, the information flow format can be uniformly processed, and the safety and reusability of data are ensured.
The three-redundancy information flow conversion method provided by the application can realize the following advantages due to the adoption of the scheme:
1) The relative position information is adopted for the three-redundancy fly-pipe system redundancy management information flow to design, so that the position information among the redundancy does not need to be calculated at the beginning of a task, the calculation operation is put at the end of each period of task, and the calculation is carried out before man-machine interaction, so that the control law instruction calculation time is shortened;
2) Unifying the formats of three-redundancy information streams, wherein each redundancy information stream only needs to know the position of the information stream when being changed, so that the three-redundancy information stream is in a unified format, and the maintainability of the information stream data is obviously enhanced;
3) When the position information is calculated, the operation is completed through one-time table lookup operation without multiple judgment of each redundancy, so that the speed of calculation is improved, and the complete consistency of the algorithm of three redundancy is maintained;
4) Processing the information flow between the three redundancy does not need to pay attention to the redundancy source of the information flow, only needs to know the port source of the information flow according to the system design, thereby maintaining consistency with hardware and increasing the security of the data structure.
In addition, the present application also provides a three-redundancy flypipe system, including:
the system comprises a first flight tube computer, a second flight tube computer and a third flight tube computer, wherein each flight tube computer is provided with a transmitting interface for transmitting information to other two flight tube computers and a first receiving interface and a second receiving interface for receiving information of other two flight tube computers;
wherein each of the flywheel computers obtains an information flow of each of the flywheel computers in the three-redundancy flywheel system; constructing a relative position information stream according to the information stream of each femto computer, wherein the relative position information stream sequentially comprises a first information stream representing a self sending port of the femto computer, a second information stream representing a first receiving port of the femto computer and a third information stream representing a second receiving port of the femto computer; and before the periodic task is finished, comparing the relative position information flow with a relative position information flow calculating table built in the flywheel computer to realize the calculation of the relative information flow.
A computing processing apparatus, comprising: one or more processing devices; a storage means for storing one or more programs; the one or more programs, when executed by the one or more processing devices, cause the one or more processing devices to implement the methods described above.
A computer readable storage medium having stored thereon a computer program which when executed by a processing device implements a method as described above.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (4)
1. An information flow processing method of a three-redundancy fly-pipe system, comprising:
obtaining information flow of each fly pipe computer in the three-redundancy fly pipe system;
constructing a relative position information stream D from the information streams of each of the fly-tube computers Y D X D S Wherein the relative position information stream sequentially comprises a first information stream D representing a transmitting port of the fly-tube computer S Second information stream D representing first receiving port of fly-pipe computer X And a third information stream D representing a second receiving port of the fly-tube computer Y ；
Before the periodic task is finished, the relative position information flow is compared with a relative position information flow calculating table built in the flywheel computer to realize the calculation of the relative information flow,
wherein the relative position information flow calculation table is shown in the table:
wherein the relative position information stream D Y D X D S 8 states 0-7, with the sign "1" representing the available state of the information stream, the sign "0" representing the unavailable state of the information stream, D C D B D A For absolute position information flow, D A Representing the information flow of a first fly-pipe computer, D B Representing the information flow of the second fly-pipe computer, D C Representing the information flow of the third fly tube computer.
2. A three-redundancy fly-pipe system, the three-redundancy fly-pipe system comprising:
the system comprises a first flight tube computer, a second flight tube computer and a third flight tube computer, wherein each flight tube computer is provided with a transmitting interface for transmitting information to other two flight tube computers and a first receiving interface and a second receiving interface for receiving information of other two flight tube computers;
each of the flywheel computers obtains information flows of the flywheel computers and other flywheel computers in the three-redundancy flywheel system; constructing a relative position information stream D from the information streams of each of the fly-tube computers Y D X D S Wherein the relative position information stream sequentially comprises a first information stream D representing a transmitting port of the fly-tube computer S Second information stream D representing first receiving port of fly-pipe computer X And a third information stream D representing a second receiving port of the fly-tube computer Y The method comprises the steps of carrying out a first treatment on the surface of the Before the periodic task is finished, comparing the relative position information flow with a relative position information flow calculating table built in the flywheel computer to realize the calculation of the relative information flow, wherein the relative position information flow calculating table is shown in the table:
wherein the relative position information stream D Y D X D S 8 states 0-7, with the label "1" indicating the available state of the information stream and the label "0" indicating the unavailable state of the information streamState D C D B D A For absolute position information flow, D A Representing the information flow of a first fly-pipe computer, D B Representing the information flow of the second fly-pipe computer, D C Representing the information flow of the third fly tube computer.
3. A computing processing apparatus, comprising:
one or more processing devices;
a storage means for storing one or more programs;
the one or more programs, when executed by the one or more processing devices, cause the one or more processing devices to implement the method of claim 1.
4. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processing device, implements the method according to claim 1.
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