CN111552584A - Test system, method and device for satellite level fault diagnosis isolation and recovery function - Google Patents

Abstract

The present application discloses a testing system, method and device for satellite first-level fault diagnosis, isolation and recovery functions. The system includes: a 1553B bus system, including a bus control terminal on the satellite and at least one remote terminal, which are used to implement the 1553B bus. Data transmission between the bus control terminal and the at least one remote terminal; a bus terminal simulator, connected to the 1553B bus system, for simulating fault excitation, so as to inject fault information into the 1553B bus system; a ground computer The device is connected to the bus control terminal, and is used for data interaction with the bus control terminal, and detects the fault diagnosis isolation and recovery function according to the interactive data. The present application solves the technical problem of poor accuracy of the verification fault diagnosis and recovery functions in the prior art.

Description

Test system, method and device for satellite level fault diagnosis isolation and recovery function

technical field

The present application relates to the technical field of spacecraft testing, and in particular, to a testing system for satellite first-level fault diagnosis, isolation and recovery functions.

Background technique

In order to automate and intelligentize satellite management, more and more satellites use fault diagnosis, isolation and recovery functions to detect the faults of the entire satellite in real time, locate the faults, and ensure the safe and reliable operation of satellites through measures such as reconstruction. Function has become an indispensable content of spacecraft at home and abroad. The fault diagnosis isolation and recovery function refers to detecting the existence of a fault on the satellite, isolating the faulty subsystem or component, and restoring the function of the faulty subsystem or component. There are many types of faults on satellites, and the faults are divided according to the characteristics of the satellite faults, for example, the faults are divided into primary faults, secondary faults, and tertiary faults. The first-level faults are briefly introduced below.

The first-level satellite fault refers to a fault that occurs in the internal module of the satellite component, but cannot be recovered autonomously at the component level. The On-Board Controller (OBC) application software needs to realize the fault detection and recovery. The faults include first-level comprehensive electronic failures, first-level power supply and distribution failures, and first-level control failures. Among them, first-level power supply and distribution failures include power control terminal failures, charging failures, or discharge failures. In order to enable the satellite to operate normally, after a first-level satellite fault occurs, the system will perform autonomous fault isolation and recovery according to the satellite fault detection, isolation and recovery (FDIR) strategy. In order to ensure autonomous fault isolation and recovery in the event of a satellite failure, it is necessary to verify the correctness of the logic function of the FDIR strategy. At present, when verifying the logical function of the FDIR strategy, it is possible to perform fault isolation and recovery function detection when the satellite is operating normally, that is, there is no fault, resulting in inaccurate results of verifying the FDIR processing logic.

SUMMARY OF THE INVENTION

The technical problem solved by the present application is: aiming at the problem of poor accuracy of the verification fault diagnosis and recovery function in the prior art, a test system, method and device for the isolation and recovery function of satellite first-level fault diagnosis are provided, which is implemented in the present application. In the solution provided by the example, by injecting faulty equipment into the whole satellite, and verifying the fault detection and recovery function logic or method under the fault, not only can the fault diagnosis and repair functions be detected under the whole satellite; Under the condition of failure, the fault diagnosis and recovery functions are detected, which improves the accuracy of the detection results.

In a first aspect, an embodiment of the present application provides a test system for satellite-level fault diagnosis isolation and recovery functions, the system comprising:

1553B bus system, including a bus control terminal on the satellite and at least one remote terminal, for realizing data transmission between the bus control terminal and the at least one remote terminal through the 1553B bus;

A bus terminal simulator, connected to the 1553B bus system, for simulating fault excitation, so as to inject fault information into the 1553B bus system;

Ground computer equipment, connected with the bus control terminal, is used for data interaction with the bus control terminal, and detects the fault diagnosis isolation and recovery function according to the interactive data.

In the solution provided by the embodiment of the present application, the first-level faulty terminal on the satellite is simulated by the bus terminal simulator, and the bus terminal simulator is connected to the 1553B bus system of the satellite, that is, the faulty device is set in the satellite, and then the bus The control terminal runs its fault diagnosis and recovery functions according to the fault information of the faulty equipment, the bus control terminal sends its data to the ground computer equipment, and the ground computer equipment detects the fault diagnosis isolation and recovery functions according to the data sent by the bus control terminal. Therefore, in the solution provided by the embodiment of the present application, by injecting faulty equipment into the whole satellite, and verifying the fault detection and recovery function logic or method under the fault, not only the fault diagnosis and repair functions can be detected under the whole satellite. It can also realize the detection of fault diagnosis and recovery functions under the condition of faults, which improves the accuracy of the detection results.

Optionally, the at least one remote terminal includes: a power control terminal, a payload service terminal and a platform service terminal.

Optionally, the bus terminal simulator is specifically used for: simulating a faulty remote terminal in the 1553B bus system.

Optionally, the bus terminal emulator is specifically configured to: adjust the module working flag of the bus terminal emulator to a fault according to the received fault control instruction, so as to obtain the faulty remote terminal.

In the second aspect, the present application provides a method for testing the isolation and recovery of satellite first-level fault diagnosis, the method comprising:

The bus control terminal sends a fault control instruction to the bus terminal simulator, and receives the fault information fed back by the bus terminal simulator according to the fault control instruction;

The bus control terminal performs fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, and determines the data information after the fault diagnosis and recovery;

The bus control terminal sends the data information to the ground computer equipment, so that the ground computer equipment tests the fault diagnosis isolation and recovery function based on the data information.

Optionally, the bus control terminal performs fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, including:

The bus control terminal determines the corresponding fault diagnosis isolation and recovery information from the preset fault diagnosis isolation and recovery strategy according to the fault information, wherein the information includes operation steps and the sequence of the operation steps;

The bus control terminal performs fault diagnosis and recovery according to the operation steps and the sequence of the operation steps.

Optionally, the fault information includes: power control terminal fault information, load service terminal fault information or platform service terminal fault information.

In a third aspect, the present application provides a test device for satellite first-level fault diagnosis isolation and recovery functions, the device comprising:

a receiving unit, configured to send a fault control instruction to the bus terminal simulator, and receive the fault information fed back by the bus terminal simulator according to the fault control instruction;

A fault diagnosis and recovery unit, configured to perform fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, and determine the data information after fault diagnosis and recovery;

The sending unit is configured to send the data information to ground computer equipment, so that the ground computer equipment tests the fault diagnosis isolation and recovery function based on the data information.

Optionally, the fault diagnosis and recovery unit is specifically used for:

Determine the corresponding fault diagnosis isolation and recovery information from the preset fault diagnosis isolation and recovery strategy according to the fault information, wherein the information includes operation steps and the sequence of the operation steps;

Perform fault diagnosis and recovery according to the operation steps and the sequence of the operation steps.

Optionally, the fault information includes: power control terminal fault information, load service terminal fault information or platform service terminal fault information.

In a fourth aspect, the present application provides a test device for satellite first-level fault diagnosis isolation and recovery functions, the device comprising:

memory for storing instructions executed by at least one processor;

The processor is configured to execute the instructions stored in the memory to execute the method described in the second aspect.

In a fifth aspect, the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the computer causes the computer to execute the method of the second aspect.

Description of drawings

1 is a schematic structural diagram of a test system for a satellite first-level fault diagnosis isolation and recovery function provided by an embodiment of the present application;

2 is a schematic flowchart of a method for testing a satellite first-level fault diagnosis isolation and recovery function provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a test device for a satellite first-level fault diagnosis isolation and recovery function provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a test apparatus for a satellite level-1 fault diagnosis isolation and recovery function provided by an embodiment of the present application.

Detailed ways

In order to better understand the above technical solutions, the technical solutions of the present application will be described in detail below through the accompanying drawings and specific embodiments. It is not a limitation on the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments may be combined with each other under the condition of no conflict.

Referring to FIG. 1 , the present application provides a test system for satellite-level fault diagnosis isolation and recovery functions. The test system includes:

1553B bus system 1, including a bus control terminal 11 on a satellite and at least one remote terminal 12, for realizing data transmission between the bus control terminal 11 and the at least one remote terminal 12 through the 1553B bus;

A bus terminal simulator 2, connected to the 1553B bus system 1, for simulating fault excitation, so as to inject fault information into the 1553B bus system 1;

The ground computer equipment 3 is connected to the bus control terminal 11, and is used for data interaction with the bus control terminal 11, and detects the fault diagnosis, isolation and recovery functions according to the interactive data.

Specifically, in the solution provided by the embodiment of the present application, the 1553B bus system 1 is located on the satellite and is used to realize data transmission between various devices on the satellite. The 1553B bus system 1 includes three parts: the bus control terminal 11 (Bus Controller, BC), at least one remote terminal 12 (Real-Time, RT) and a bus monitor (BusMonitor, BM). The bus control terminal 11 and at least one remote terminal 12 realize data transmission through the 1553B bus. Specifically, the bus control terminal 11 sends a data sending request or a data receiving request to at least one remote terminal 12 through the 1553B bus, and at least one remote terminal 12 is receiving data. After the data sending request or the data receiving request, the data is sent to the bus control terminal 11 through the 1553B bus. The bus terminal simulator 2 is set on the ground, used to simulate a faulty remote terminal 12 in the 1553B bus system 1 , and connects the bus terminal simulator 2 with the 1553B bus in the 1553B bus system 1 . The ground computer equipment 3 may include a plurality of distributed computer equipment, for example, the ground computer equipment 3 includes a remote control command sending computer, a telemetry display computer, a data processing computer or a dynamics simulation computer, etc.; it may also include a centralized single computer equipment, It is not limited here. The ground computer equipment 3 can be directly connected to the bus control terminal 11, or it can be indirectly connected to the bus control terminal 11 through the ground telemetry control equipment 4 and the measurement and control subsystem 5, for realizing data with the bus control terminal 11. interaction, and then the fault diagnosis isolation and recovery functions are detected according to the interaction data.

Further, in the solutions provided by the embodiments of the present application, the at least one remote terminal 12 has various types. In a possible implementation manner, the at least one remote terminal 12 includes: a power control terminal 121 , a payload service terminal 122 and a platform service terminal 123 .

In a possible implementation manner, the bus terminal simulator 2 is specifically used to simulate a remote terminal 21 with a fault in the 1553B bus system.

Specifically, the satellite first-level faults include integrated electronic first-level failures, power supply and distribution first-level failures, or control first-level failures. For different fault types, the faulty remote terminals in the 1553B bus system 1 simulated by the bus terminal simulator 2 are different. For example, for a comprehensive electronic first-level fault, the bus terminal simulator 2 is used to simulate the 1553B bus system. 1. Medium-load service terminal 122 or platform service terminal 123; for power supply and distribution first-level faults, the bus terminal simulator 2 is used to simulate the power control terminal 121 in the 1553B bus system 1. In the solution provided by the embodiment of the present application, there are many ways for the bus terminal simulator 2 to simulate the remote terminal 21 having a fault, and a preferred way is taken as an example for description below.

In a possible implementation manner, the bus terminal simulator 2 is specifically configured to: adjust the module working flag bit of the bus terminal simulator to a fault according to the received fault control instruction, and obtain the faulty remote Terminal 21.

Specifically, in the solution provided by the embodiment of the present application, a fault diagnosis and recovery strategy is preset in the bus control terminal 11 . Each remote terminal 21 is provided with a work flag, and the work flag is used to identify the work state of the remote terminal 21, for example, the work state includes normal or fault.

In order to facilitate the understanding of the process of the above-mentioned bus terminal simulator 2 simulating remote terminals with different faults, the following describes the comprehensive electronic first-level fault or the power supply and distribution first-level fault respectively.

1. For comprehensive electronic first-level faults

Specifically, in the solution provided by the embodiment of the present application, if the bus terminal emulator 2 simulates the load service terminal 122 or the platform service terminal 123 in the 1553B bus system 1, the bus terminal emulator 2 is connected to the 1553B bus system 1. After that, power on each satellite system and enable the fault diagnosis and recovery strategy in the bus control terminal 11. Then, the ground computer equipment 3 sends the remote control command to the bus control terminal 11. After the bus control terminal 11 receives the remote control command, Send a fault control instruction to the bus terminal emulator 2 according to the remote control instruction, and the bus terminal emulator 2 adjusts the module working flag of the bus terminal emulator 2 to a fault according to the fault control instruction, and obtains the faulty load service Terminal 122 or platform service terminal 123 .

2. For the first-level fault of power supply and distribution

Specifically, in the solution provided by the embodiment of the present application, if the bus terminal simulator 2 simulates the power control terminal 121 in the 1553B bus system 1, after the bus terminal simulator 2 is connected to the 1553B bus system 1, the satellite Each system is powered on, and the fault diagnosis and recovery strategy in the bus control terminal 11 is enabled. Then, the ground computer equipment 3 sends a remote control command to the bus control terminal 11. After receiving the remote control command, the bus control terminal 11 sends the remote control command to The bus terminal emulator 2 sends a fault control instruction, and the bus terminal emulator 2 adjusts the module working flag of the bus terminal emulator 2 to a fault according to the fault control instruction to obtain the faulty power control terminal 121 .

Further, in the solution provided by the embodiment of the present application, the first-level power supply and distribution fault includes a power control terminal fault, a charging fault or a discharging fault, and the recovery process of the charging fault or the discharging fault is described below.

1) Charging failure

Specifically, after the bus terminal emulator 2 is connected to the onboard 1553B bus system 1, set the bus terminal emulator 2 to not respond to the command, set the backup parameter to the state of discharge mode, set the energy self-management enable, and the battery charge and discharge self-management enable , the charging adjustment module failover is enabled, and the main parameters of the bus terminal emulator 2 are set to make the energy software change from the suspend mode to the discharge mode; at this time, because the bus terminal emulator 2 does not respond to the command, that is, the command is not executed for three consecutive times. Correct, the main part fails to control the main part's charging adjustment module, triggering a fault.

2) Discharge failure

After the bus terminal emulator 2 is connected to the 1553B bus system 1 on the satellite, set the energy self-management enable on the bus terminal emulator 2, the battery charge and discharge self-management enable, set the software to long light period, and enable the discharge regulation module failover. function, as well as the main parameters of the bus terminal emulator 2, etc., so that it generates a discharge current, thereby triggering a fault.

Further, after the bus terminal simulator 2 adjusts the working flag to a fault and obtains the faulty remote terminal 21, the bus terminal simulator 2 sends its fault data to the bus control terminal 11 through the 1553B bus, and the bus control terminal 11 receives the fault data. After reaching the fault data of the bus terminal simulator 2, the fault diagnosis and recovery functions are performed according to the fault data and the preset fault diagnosis and recovery strategy, and after the fault diagnosis and recovery are performed, the data received by the bus control terminal 11 is sent to the bus terminal 11. The ground computer equipment 3 detects whether the fault diagnosis isolation and recovery functions are correct according to the received data. For example, the ground computer equipment 3 detects whether the fault of the 1553B bus system is eliminated according to the received data.

In the solution provided by the embodiment of the present application, the first-level faulty terminal on the satellite is simulated by the bus terminal simulator 2, and the bus terminal simulator 2 is connected to the 1553B bus system 1 of the satellite, that is, a faulty device is set in the satellite, Then, the bus control terminal 11 runs its fault diagnosis and recovery functions according to the fault information of the faulty equipment, the bus control terminal 11 sends its data to the ground computer equipment 3, and the ground computer equipment 3 detects the fault according to the data sent by the bus control terminal 11. Fault diagnosis isolation and recovery functions. Therefore, in the solution provided by the embodiment of the present application, by injecting faulty equipment into the whole satellite, and verifying the fault detection and recovery function logic or method under the fault, not only the fault diagnosis and repair functions can be detected under the whole satellite. It can also realize the detection of fault diagnosis and recovery functions under the condition of faults, which improves the accuracy of the detection results.

A method for testing the first-level fault diagnosis isolation and recovery function of a satellite provided by the embodiments of the present application will be described in further detail below with reference to the accompanying drawings. The method is applied to the system shown in FIG. 1, and the specific implementation of the method may include: The following steps (the method flow is shown in Figure 2):

Step 201, the bus control terminal sends a fault control instruction to the bus terminal simulator, and receives the fault information fed back by the bus terminal simulator according to the fault control instruction.

Step 202, the bus control terminal performs fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, and determines the data information after the fault diagnosis and recovery.

Step 203, the bus control terminal sends the data information to the ground computer equipment, so that the ground computer equipment tests the fault diagnosis isolation and recovery functions based on the data information.

Optionally, the bus control terminal performs fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, including:

The bus control terminal determines the corresponding fault diagnosis isolation and recovery information from the preset fault diagnosis isolation and recovery strategy according to the fault information, wherein the information includes operation steps and the sequence of the operation steps;

The bus control terminal performs fault diagnosis and recovery according to the operation steps and the sequence of the operation steps.

Optionally, the fault information includes: power control terminal fault information, load service terminal fault information or platform service terminal fault information.

Specifically, the information exchange process between the devices in the test method for the first-level fault diagnosis isolation and recovery function of a satellite provided in FIG. 2 has been described in detail in the above-mentioned introduction to the system shown in FIG. Repeat.

Referring to FIG. 3, the present application provides a test device for satellite first-level fault diagnosis isolation and recovery function, the device includes:

A receiving unit 301, configured to send a fault control instruction to the bus terminal simulator, and receive the fault information fed back by the bus terminal simulator according to the fault control instruction;

A fault diagnosis and recovery unit 302, configured to perform fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, and determine the data information after fault diagnosis and recovery;

The sending unit 303 is configured to send the data information to ground computer equipment, so that the ground computer equipment tests the fault diagnosis isolation and recovery functions based on the data information.

Optionally, the fault diagnosis and recovery unit 302 is specifically configured to:

Determine the corresponding fault diagnosis isolation and recovery information from the preset fault diagnosis isolation and recovery strategy according to the fault information, wherein the information includes operation steps and the sequence of the operation steps;

Perform fault diagnosis and recovery according to the operation steps and the sequence of the operation steps.

Optionally, the fault information includes: power control terminal fault information, load service terminal fault information or platform service terminal fault information.

Referring to FIG. 4 , the present application provides a test device for satellite-level fault diagnosis isolation and recovery functions. The device includes:

a memory 401 for storing instructions executed by at least one processor;

The processor 402 is configured to execute the instructions stored in the memory to execute the method described in FIG. 2 .

The present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the computer executes the method described in FIG. 2 .

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (10)

1. a test system of satellite first-level fault diagnosis isolation and recovery function, is characterized in that, comprises: 1553B bus system, including a bus control terminal on the satellite and at least one remote terminal, for realizing data transmission between the bus control terminal and the at least one remote terminal through the 1553B bus; A bus terminal simulator, connected to the 1553B bus system, for simulating fault excitation, so as to inject fault information into the 1553B bus system; Ground computer equipment, connected with the bus control terminal, is used for data interaction with the bus control terminal, and detects the fault diagnosis isolation and recovery function according to the interactive data. 2. The system according to claim 1, wherein the at least one remote terminal comprises: a power control terminal, a load service terminal and a platform service terminal. 3. The system according to claim 2, wherein the bus terminal simulator is specifically used for: simulating a faulty remote terminal in the 1553B bus system. 4. system as claimed in claim 3, is characterized in that, described bus terminal emulator is specifically used for: according to the fault control instruction received, the module work flag position of described bus terminal emulator is adjusted to fault, obtains all the faulty remote terminal. 5. A test method for satellite first-level fault diagnosis isolation and recovery function, applied to the system according to any one of claims 1 to 4, characterized in that, comprising: The bus control terminal sends a fault control instruction to the bus terminal simulator, and receives the fault information fed back by the bus terminal simulator according to the fault control instruction; The bus control terminal performs fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, and determines the data information after the fault diagnosis and recovery; The bus control terminal sends the data information to the ground computer equipment, so that the ground computer equipment tests the fault diagnosis isolation and recovery function based on the data information. 6. The method of claim 5, wherein the bus control terminal performs fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, comprising: The bus control terminal determines the corresponding fault diagnosis isolation and recovery information from the preset fault diagnosis isolation and recovery strategy according to the fault information, wherein the information includes operation steps and the sequence of the operation steps; The bus control terminal performs fault diagnosis and recovery according to the operation steps and the sequence of the operation steps. 7. The method according to claim 5 or 6, wherein the fault information comprises: power control terminal fault information, load service terminal fault information or platform service terminal fault information. 8. A test device for satellite first-level fault diagnosis isolation and recovery function, characterized in that it comprises: a receiving unit, configured to send a fault control instruction to the bus terminal simulator, and receive the fault information fed back by the bus terminal simulator according to the fault control instruction; A fault diagnosis and recovery unit, configured to perform fault diagnosis and recovery according to the fault information and a preset fault diagnosis isolation and recovery strategy, and determine the data information after fault diagnosis and recovery; The sending unit is configured to send the data information to ground computer equipment, so that the ground computer equipment tests the fault diagnosis isolation and recovery function based on the data information. 9. The device according to claim 8, wherein the fault diagnosis and recovery unit is specifically used for: Determine the corresponding fault diagnosis isolation and recovery information from the preset fault diagnosis isolation and recovery strategy according to the fault information, wherein the information includes operation steps and the sequence of the operation steps; Perform fault diagnosis and recovery according to the operation steps and the sequence of the operation steps. 10. A test device for satellite first-level fault diagnosis isolation and recovery function, characterized in that it comprises: memory for storing instructions executed by at least one processor; The processor is configured to execute the instructions stored in the memory to perform the method according to any one of claims 5-7.

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