CN115599002A - Method and device for monitoring state life of airborne PHM system - Google Patents
Method and device for monitoring state life of airborne PHM system Download PDFInfo
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- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
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Abstract
The application belongs to the field of simulation design of an airborne PHM system, and relates to a method and a device for monitoring the state life of the airborne PHM system. The method comprises the following steps: loading simulation data stream configuration information; generating time sequence parameter names and parameter values based on the loaded data stream configuration information, and generating simulation data streams conforming to an airborne PHM system operation protocol by referring to an airborne bus ICD protocol; extracting simulation data as required, and integrating the simulation data with flight number information and flight phase information; processing the integrated simulation data by the airborne PHM system state monitoring and service life monitoring function module to generate result information; and judging the result information, and verifying whether the state monitoring and life monitoring functions of the onboard PHM system meet the design requirements. The method and the device realize simulation verification of the state monitoring and service life monitoring functions of the airborne PHM system.
Description
Technical Field
The application belongs to the field of simulation design of an airborne PHM system, and particularly relates to a method and a device for monitoring the state life of the airborne PHM system.
Background
The airborne prediction and health management system is called an airborne PHM system for short. Along with the continuous improvement of the complexity of the design and development of the airborne PHM system of the aircraft, the novel airborne PHM system is independently designed with the functions of state monitoring and service life monitoring, and the logic complexity of the functions of state monitoring and service life monitoring of airborne equipment is also increased, so that the design and verification of the functions of state monitoring and service life monitoring of the airborne health management PHM system become a complex process involving multiple elements, which covers multiple technical fields, a certain technical verification process needs to be designed for continuous verification, improvement and perfection so as to meet the requirements of state monitoring and service life monitoring of the airborne PHM system, the design optimization and upgrade iteration of the functions of state monitoring and service life monitoring of the airborne PHM system is met, and the operation effect of state monitoring and service life monitoring of the airborne PHM system is effectively improved.
Disclosure of Invention
In order to solve at least one of the technical problems, the present application designs a method and a device for monitoring the state and the life of an airborne PHM system, so as to implement simulation verification of the functions of monitoring the state and monitoring the life of the airborne PHM system.
The application provides a method for monitoring the state life of an airborne PHM system in a first aspect, which mainly comprises the following steps:
loading simulation data stream configuration information;
generating time sequence parameter names and parameter values based on the loaded data stream configuration information, and generating simulation data streams conforming to an airborne PHM system operation protocol by referring to an airborne bus ICD protocol;
extracting simulation data as required, and integrating the simulation data with flight number information and flight phase information;
processing the integrated simulation data by the airborne PHM system state monitoring and service life monitoring function module to generate result information;
and judging the result information, and verifying whether the state monitoring and life monitoring functions of the onboard PHM system meet the design requirements.
Preferably, the loading the simulation data flow configuration information includes:
loading a model for defining how data is generated and analyzing the model;
loading data of a historical real record and analyzing the data;
rules for generating the type and amount of correct or incorrect data are generated and parsed on board.
Preferably, the extracting simulation data on demand includes:
integration and switching based on the airborne area, which is used for merging different data streams based on the airborne area or the sub-area;
time slice-based integration and switching for merging different data streams based on different state monitoring periods;
and integrating and switching based on the custom configuration, and merging simulation data sources of different time and different devices.
Preferably, the integration and switching based on the airborne region includes:
aligning time sequence moments aiming at different data streams;
disassembling the data stream into a data frame structure according to time;
data frames of selected regions or sub-regions in the data stream are extracted and re-framed based on the aligned time instants.
Preferably, the result information includes key overrun parameter information, statistical data parameter information, life monitoring parameter information, and ground real-time display parameter information.
The second aspect of the present application provides an airborne PHM system state life monitoring device, which mainly includes:
the configuration information loading module is used for loading the configuration information of the simulation data stream;
the simulation data stream generation module is used for generating time sequence parameter names and parameter values based on the loaded data stream configuration information and generating simulation data streams conforming to the operation protocol of the airborne PHM system based on the airborne bus ICD protocol;
the simulation data integration module is used for extracting simulation data according to requirements and integrating the simulation data with flight number information and flight phase information;
the state monitoring function operation module is used for processing the integrated simulation data by the airborne PHM system state monitoring and service life monitoring function module to generate result information;
and the state monitoring result interpretation module is used for judging the result information and verifying whether the state monitoring and life monitoring functions of the onboard PHM system meet the design requirements.
Preferably, the configuration information loading module includes:
the model loading and analyzing unit is used for loading a model for defining how the data is generated and analyzing the model;
the data loading and analyzing unit is used for loading data of the historical real record and analyzing the data;
and the rule loading and analyzing unit is used for carrying rules for generating the types and the number of correct or wrong data and analyzing the rules.
Preferably, the simulation data integration module includes:
the region integration unit is used for integration and switching based on the airborne region and merging different data streams based on the airborne region or the sub-region;
the time slice integration unit is used for integrating and switching based on time slices and merging different data streams based on different state monitoring periods;
and the custom integration unit is used for integrating and switching based on custom configuration and combining simulation data sources of different time and different devices.
Preferably, the region integration unit includes:
a time alignment subunit, configured to align time-series time instants for different data streams;
the data frame disassembling subunit is used for disassembling the data stream into a data frame structure according to time;
and the framing subunit is used for extracting the data frames of the selected area or the sub-area in the data stream and framing again based on the aligned time.
Preferably, the result information includes key overrun parameter information, statistical data parameter information, life monitoring parameter information, and ground real-time display parameter information.
The advantages of the application include:
1) The method can adapt to more complex functions of state monitoring and life monitoring of the onboard PHM system, constructs a simulation configuration and verification method which comprehensively covers key overrun parameters, statistical data parameters, life monitoring parameters and ground real-time display parameters, and meets the functional test verification requirements of all parameter types of state monitoring and life monitoring of the onboard PHM system;
2) By providing a simulation data stream based on a model, history and random dispersion, the generation of multi-source simulation verification data is met, more accurate, various and multi-scene simulation verification data is realized, a sufficient simulation verification data sample is provided for the state monitoring and life monitoring functions of the airborne PHM system, and the breadth, depth and precision of the data sample in the verification process are improved;
3) The method comprises the steps of providing simulation data integration in various forms, providing various integration configuration methods based on airborne regions, time slices and custom configuration based on multi-source simulation data streams, supporting integrated flight number and stages, realizing high simulation of complex airborne PHM system state monitoring and life monitoring scenes in engineering practical application, supporting a verification scene more extreme than an actual situation in manufacturing, and providing a complex verification scene closer to the actual situation and a wider data envelope boundary for verification of airborne PHM system state monitoring and life monitoring functions;
4) The method provides information interpretation covering numerical value information, logic information, event information and time sequence, can give comprehensive operation result verification judgment to the operation logic of the airborne PHM system state monitoring and life monitoring functions, can meet the verification interpretation requirements in actual engineering scenes such as simulation, test, experiment, problem recurrence troubleshooting and the like in airborne PHM system engineering development, and solves the verification problem of all functions of the complex aircraft airborne PHM system state monitoring and life monitoring.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of the present method for monitoring the status and life of an onboard PHM system.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are implementations that are part of this application and not all implementations. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Embodiments of the present application will be described in detail below with reference to the drawings.
The application provides a method for monitoring the state life of an airborne PHM system, as shown in FIG. 1, which mainly comprises the following steps:
s1, loading simulation data stream configuration information;
s2, generating time sequence parameter names and parameter values based on the loaded data stream configuration information, and generating simulation data streams according with an operation protocol of an airborne PHM system by referring to an airborne bus ICD protocol;
s3, extracting simulation data according to requirements, and integrating the simulation data with flight number information and flight phase information;
s4, processing the integrated simulation data by a state monitoring and life monitoring function module of the airborne PHM system to generate result information;
and S5, judging the result information, and verifying whether the state monitoring and service life monitoring functions of the onboard PHM system meet the design requirements.
In some optional embodiments, in step S1, the loading the simulation data flow configuration information includes:
loading a model for defining how data is generated and analyzing the model;
loading data of a historical real record and analyzing the data;
rules for generating the type and amount of correct or incorrect data are generated and parsed on board.
Referring to fig. 1, loading simulation data flow configuration information, including loading a model and analyzing, loading data and analyzing, and loading rules and analyzing, where the model is used to define how data is generated, where the model may be divided into a key overrun data model, a statistical data model, a life monitoring data model, and a ground real-time display parameter model, for example, the key overrun data model describes the generation logic of key overrun parameters, including parameter name, threshold value, peak value, maximum value, minimum value, overrun times, overrun amplitude, and a specific overrun parameter logic model caused by a certain fault; the data is historical real record data, and can be original data which is recorded in real time by simulation, original data which is recorded in real time by a ground test and original data which is recorded in real time in a flight test; the rule is a random discrete rule, and the type and the number of randomly generated correct or wrong data can be set.
In step S2, generating a simulation data stream, which may be generated based on a model, history and random dispersion, wherein the generation of the simulation data stream based on the model is to generate parameter names and parameter values based on time series determined by the model respectively through a key overrun data model, a statistical data model, a life monitoring data model and a ground real-time display parameter model after the analysis is completed, the generation of the simulation data stream based on the history is to generate parameter information after time series updating by extracting parameter names and parameter values corresponding to the analyzed historical actual record data, and the generation of the simulation data stream based on the random dispersion is to generate random dispersion sequence data based on optional values or interval information of each airborne parameter; referring to fig. 1, the generated time series parameter names and parameter values are generated based on the onboard bus ICD protocol, and are referred to generate simulation data streams conforming to the onboard PHM system operation protocol, in particular, three simulation data streams may be generated simultaneously.
In some alternative embodiments, extracting the simulation data on demand comprises:
based on the integration and switching of the airborne regions, merging different data streams based on the airborne regions or sub-regions;
time slice-based integration and switching for merging different data streams based on different state monitoring periods;
and integrating and switching based on the custom configuration, and combining simulation data sources of different time and different devices.
In step S3, integration and switching of typical airborne region data based on different simulation data streams can be realized based on integration and switching of airborne regions, which can be understood as integration and switching of lateral dimensions, different data streams are merged based on airborne regions or sub-regions, alignment of time sequence moments is first performed on different data streams in the integration process, then a data frame structure is disassembled, then selected region or sub-region data in the data streams are extracted, and framing is performed again based on the aligned moments; integration and switching of different simulation data streams based on any time slice can be realized based on integration and switching of the time slice, the integration and switching based on the time slice can be understood as integration and switching of longitudinal dimension, the minimum length of the time slice is the minimum cycle time of state monitoring, the maximum time does not exceed the time consumed by one flight frame, the time slice can be divided into a plurality of time slices, each time slice can be configured into any data stream, and the data stream integration is completed by framing aiming at data time information after the configuration is completed; the integration and switching based on the user-defined configuration can realize the flexible determination of the simulation data source of any equipment at any moment in the data stream based on the user-defined configuration, the user-defined can be defined in a configuration file mode, and the framing of data and time sequence is carried out according to the definition content; particularly, the data source can integrate the LEG information of flight frames, and each flight frame can integrate the flight phase information of takeoff, cruise, landing and the like.
In step S4, the simulation data transmitted in step S3 is received, and is analyzed by referring to the onboard bus ICD protocol, so as to provide operation adjustment for the onboard PHM system state monitoring and life monitoring function, and result information is generated based on the operation logic of the onboard PHM system state monitoring and life monitoring function itself, which may include key over-limit parameter information, statistical data parameter information, life monitoring parameter information, and ground real-time display parameter information in some optional embodiments.
In step S5, a state monitoring result criterion is generated based on the model, the data, the configuration information of the rule, and the simulation data integration information, and numerical value information interpretation, logic information interpretation, event information interpretation, and time timing information interpretation are performed, including simulation parameter value numerical value judgment, parameter timing judgment, overrun logic judgment, life logic judgment, historical data comparison, trigger event judgment, overrun time judgment, real-time parameter time judgment, and the like; and verifying and confirming whether the state monitoring and service life monitoring functions of the airborne PHM system meet the design requirements.
The second aspect of the present application provides an onboard PHM system state life monitoring apparatus corresponding to the above method, which mainly includes:
the configuration information loading module is used for loading the configuration information of the simulation data stream;
the simulation data stream generation module is used for generating time sequence parameter names and parameter values based on the loaded data stream configuration information and generating simulation data streams conforming to the operation protocol of the airborne PHM system based on the airborne bus ICD protocol;
the simulation data integration module is used for extracting simulation data according to requirements and integrating the simulation data with flight number information and flight phase information;
the state monitoring function operation module is used for processing the integrated simulation data by the airborne PHM system state monitoring and service life monitoring function module to generate result information;
and the state monitoring result interpretation module is used for judging the result information and verifying whether the state monitoring and service life monitoring functions of the onboard PHM system meet the design requirements or not.
In some optional embodiments, the configuration information loading module includes:
the model loading and analyzing unit is used for loading a model for defining how the data is generated and analyzing the model;
the data loading and analyzing unit is used for loading data of the historical real record and analyzing the data;
and the rule loading and analyzing unit is used for carrying rules for generating types and quantity of correct or wrong data and analyzing the rules.
In some optional embodiments, the simulation data integration module comprises:
the region integration unit is used for integrating and switching based on the airborne region and merging different data streams based on the airborne region or the sub-region;
the time slice integration unit is used for integrating and switching based on time slices and merging different data streams based on different state monitoring periods;
and the custom integration unit is used for integrating and switching based on custom configuration and combining simulation data sources of different time and different devices.
In some alternative embodiments, the region integration unit comprises:
a time alignment subunit, configured to align time-series time instants for different data streams;
a data frame disassembling subunit, configured to disassemble the data stream into a data frame structure according to time;
and the framing subunit is used for extracting the data frames of the selected area or the sub-area in the data stream and framing again based on the aligned time.
In some optional embodiments, the result information comprises key overrun parameter information, statistical data parameter information, life monitoring parameter information, and ground real-time display parameter information.
It should be noted that the above-mentioned flow operations may be combined and applied to different degrees, and for simplicity, the implementation manners of various combinations are not described again. The order of the steps of the above-described method (or the positions of the components of the product) can be flexibly adjusted, combined and the like by those skilled in the art according to actual situations.
It should be noted that the implementation manner of the functional components shown in the above embodiments may be hardware, software or a combination of the two. When implemented in hardware, it may be an electronic circuit, an Application Specific Integrated Circuit (ASIC), a plug-in, a function card, etc. When implemented in software, it can be used with programs or code segments that perform the required tasks. The program or code segments can be stored in a machine or readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or communication link.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within 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 (10)
1. A method for monitoring the state life of an onboard PHM system is characterized by comprising the following steps:
loading simulation data stream configuration information;
generating time sequence parameter names and parameter values based on the loaded data stream configuration information, and generating simulation data streams conforming to an airborne PHM system operation protocol by referring to an airborne bus ICD protocol;
extracting simulation data as required, and integrating the simulation data with flight number information and flight phase information;
processing the integrated simulation data by the airborne PHM system state monitoring and service life monitoring function module to generate result information;
and judging the result information, and verifying whether the state monitoring and life monitoring functions of the onboard PHM system meet the design requirements.
2. The method of monitoring the state-life of an onboard PHM system of claim 1, wherein the loading the simulated data stream configuration information comprises:
loading a model for defining how data is generated and analyzing the model;
loading data of a historical real record and analyzing the data;
rules for generating the type and amount of correct or incorrect data are generated and parsed on board.
3. The method of monitoring the state-life of an onboard PHM system of claim 1, wherein extracting simulation data on-demand comprises:
integration and switching based on the airborne area, which is used for merging different data streams based on the airborne area or the sub-area;
time slice-based integration and switching for merging different data streams based on different state monitoring periods;
and integrating and switching based on the custom configuration, and merging simulation data sources of different time and different devices.
4. The method of monitoring the state-life of an onboard PHM system as recited in claim 3, wherein the integrating and switching based on onboard regions comprises:
aligning time sequence moments aiming at different data streams;
the data stream is disassembled into a data frame structure according to time;
data frames of selected regions or sub-regions in the data stream are extracted and re-framed based on the aligned time instants.
5. The method of claim 1, wherein the result information includes key out-of-limit parameter information, statistical data parameter information, life monitoring parameter information, ground real-time display parameter information.
6. An on-board PHM system state life monitoring device, comprising:
the configuration information loading module is used for loading the configuration information of the simulation data stream;
the simulation data stream generation module is used for generating time sequence parameter names and parameter values based on the loaded data stream configuration information and generating simulation data streams conforming to the operation protocol of the airborne PHM system based on the airborne bus ICD protocol;
the simulation data integration module is used for extracting simulation data according to requirements and integrating the simulation data with flight number information and flight phase information;
the state monitoring function operation module is used for processing the integrated simulation data by the airborne PHM system state monitoring and service life monitoring function module to generate result information;
and the state monitoring result interpretation module is used for judging the result information and verifying whether the state monitoring and service life monitoring functions of the onboard PHM system meet the design requirements or not.
7. The on-board PHM system state-life monitoring device of claim 6, wherein the configuration information loading module comprises:
the model loading and analyzing unit is used for loading a model for defining how the data is generated and analyzing the model;
the data loading and analyzing unit is used for loading data of historical real records and analyzing the data;
and the rule loading and analyzing unit is used for carrying rules for generating types and quantity of correct or wrong data and analyzing the rules.
8. The on-board PHM system state-life monitoring device of claim 6, wherein the simulation data integration module comprises:
the region integration unit is used for integration and switching based on the airborne region and merging different data streams based on the airborne region or the sub-region;
the time slice integration unit is used for integrating and switching based on time slices and merging different data streams based on different state monitoring periods;
and the custom integration unit is used for integrating and switching based on custom configuration and merging simulation data sources of different time and different devices.
9. The on-board PHM system state-life monitoring device of claim 8, wherein the regional integration unit comprises:
a time-to-sub-unit for aligning time-series instants for different data streams;
a data frame disassembling subunit, configured to disassemble the data stream into a data frame structure according to time;
and the framing subunit is used for extracting the data frames of the selected area or sub-area in the data stream and framing again based on the aligned time.
10. The status-life monitoring apparatus of an onboard PHM system of claim 6, wherein the result information includes key out-of-limit parameter information, statistical data parameter information, life monitoring parameter information, ground real-time display parameter information.
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| 许光泞;文欣秀;曾亚;: "基于PHM的机载设备健康管理系统的研究与设计" * |
| 谢娜，等: "民机故障预测与健康管理系统顶层架构设计技术研究" * |
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