CN109522944B - Multi-dimensional rapid classification method for faults of spacecraft - Google Patents
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Abstract
A multi-dimensional rapid classification method for faults of a spacecraft relates to the field of space safety; the method comprises the following steps: step one, establishing a keyword retrieval catalog of fault classification; step two, acquiring fault information of the aircraft; step three, performing fragmentation processing on the fault information of the aircraft according to the keyword retrieval catalog of the fault classification; step four, establishing a fault label; fifthly, correspondingly labeling the aircraft fault information subjected to fragmentation in the third step; step six, establishing an aircraft fault standard library, and storing the aircraft fault information subjected to labeling processing in the aircraft fault standard library; step seven, keyword retrieval query is carried out from the aircraft fault standard library to obtain the required fault information; the method is suitable for rapid classification and analysis of faults of various spacecrafts in the future, and has important significance for researching fault rules and rescue modes of the future aircrafts.
Description
Technical Field
The invention relates to the field of space safety, in particular to a multi-dimensional rapid classification method for faults of a spacecraft.
Background
The track rescue system carries out function recovery rescue aiming at the damaged satellite. The track rescue system has wide dual-purpose potential of military and civilian, is in a highly overlapped region of national defense, military and commercial aerospace, is an important support for the integration development of military and civilian, and has important development potential and application value in the directions of space safety, on-orbit service, commercial rescue and launching and the like.
Relevant researches are carried out by the main aerospace strong countries in the world aiming at both the fast response carrier rocket and the in-orbit service technology, the technologies such as space satellite rescue and the like are always in the following stage in China, the differences are mainly reflected in late starting, few flight verification and low technical maturity, relevant reports on the classification method of the space fault aircraft are not seen, and the proposal and application of the classification method of the space fault aircraft have important significance for the use and rescue of the space aircraft and the reasonable configuration of space resources in the future.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a multi-dimensional rapid classification method for spacecraft faults, is suitable for rapid classification and analysis of faults of various spacecrafts in the future, and has important significance for researching future aircraft fault rules and rescue modes.
The above purpose of the invention is realized by the following technical scheme:
a multi-dimensional rapid classification method for faults of a spacecraft comprises the following steps:
step one, establishing a keyword retrieval catalog of fault classification;
step two, acquiring fault information of the aircraft;
step three, performing fragmentation processing on the fault information of the aircraft according to the keyword retrieval catalog of the fault classification;
step four, establishing a fault label;
fifthly, correspondingly labeling the aircraft fault information subjected to fragmentation in the third step;
step six, establishing an aircraft fault standard library, and storing the aircraft fault information subjected to labeling processing in the aircraft fault standard library;
and seventhly, when the aircraft fault is analyzed, keyword retrieval query is carried out from the aircraft fault standard library to obtain fault information.
In the above multidimensional rapid classification method for faults of the spacecraft, in the first step, the fault classification keyword searches for fault categories in the catalog, which include control system faults, remote control and communication system faults, power system faults, data management faults, thermal control system faults and payload faults.
In the above multidimensional rapid classification method for faults of the spacecraft, in the first step, keywords of the faults of the control system comprise attitude control faults, a control computer, rail control faults, a sensor, a navigation wheel and a reaction wheel; the keywords of the fault of the remote control and communication system comprise a remote control, a GPS, an answering machine and a communication link; the key words of the power system faults comprise a power supply regulator, a power supply and distribution device, a power supply charge and discharge device, a power supply controller, a storage battery pack, a power supply lower computer and a solar cell array; the key word of the power system fault is a power executing mechanism; the key words of the data management faults are a data management memory and a data processor; the keywords of the fault of the thermal control system are the thermal control outside the platform and the single machine thermal control; the key to payload failure is the camera.
In the above multidimensional rapid classification method for the spacecraft faults, in the second step, the aircraft fault information is acquired from an external ground measurement and control station.
In the multidimensional rapid classification method for the faults of the spacecraft, the fault information of the spacecraft is a comprehensive character in which all fault category information is arranged in a non-sequence mode.
In the above multidimensional rapid classification method for spacecraft fault, a specific method for fragmenting fault information of a spacecraft is as follows:
s1: carrying out fault classification on the fault information of the aircraft according to fault categories according to the keyword retrieval catalog of the fault classification;
s2: summarizing the fault information of the same fault type to form fault type fragments;
s3: and sorting the fault category fragments according to the sequence of control system faults, remote control and communication system faults, power system faults, data management faults, thermal control system faults and payload faults.
In the foregoing method for multi-dimensional fast classification of spacecraft faults, in the fourth step, the categories and keywords of the fault labels are consistent with the categories and keywords in the keyword search directory of the fault classification.
Compared with the prior art, the invention has the following advantages:
(1) The method is specially used for solving the difficult problems of statistics and classification of the fault aircrafts, and a spacecraft fault database is established; the method comprises the steps of classifying failure modes of the spacecraft, establishing a connection between failures and multidimensional information such as satellite orbit height, functional use, platform types and subsystem composition, and solving the problems of large data volume, multiple information types, dynamic data update and difficulty brought to statistical analysis work of the spacecraft in historical failures; (ii) a
(2) The invention provides a multidimensional classification method for rapid analysis of spacecraft fault big data, which is specially used for solving the difficult problems of statistics and classification of fault aircrafts, wherein a satellite fault database is used as a training sample of an algorithm to form a fault classification network structure capable of analyzing abnormal parameters for rapid statistical analysis of spacecraft fault data;
(3) The method can be further upgraded along with the expansion of the database, is suitable for the fault type of a novel aircraft, can also improve the fault classification accuracy, and can subsequently provide data support for the work of rapid fault analysis and classification, product quality improvement and the like.
Drawings
FIG. 1 is a flow chart of a fast classification method of the present invention;
FIG. 2 is a diagram of a fault classification keyword search directory according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
the invention overcomes the defects of the existing scientific research results, counts the recorded faults of the spacecraft historically, establishes a database, completes the research of a reasonable labeling rapid classification method, and provides a method capable of rapidly analyzing and judging the faults of the spacecraft in the future.
As shown in fig. 1, which is a flowchart of a rapid classification method, it can be known that a multidimensional rapid classification method for a spacecraft fault includes the following steps:
step one, establishing a keyword retrieval catalog of fault classification; the fault categories in the fault classification keyword retrieval directory include control system faults, telemetry control and communication system faults, power system faults, data management faults, thermal control system faults and payload faults. The keywords of the control system faults comprise attitude control faults, a control computer, rail control faults, sensors, navigation and reaction wheels; the keywords of the fault of the remote control and communication system comprise a remote control, a GPS, an answering machine and a communication link; the key words of the power system faults comprise a power supply regulator, a power supply and distribution device, a power supply charge and discharge device, a power supply controller, a storage battery pack, a power supply lower computer and a solar cell array; the key word of the power system fault is a power executing mechanism; the key words of the data management faults are a data management memory and a data processor; the keywords of the fault of the thermal control system are external thermal control of the platform and single machine thermal control; the key to payload failure is the camera.
Step two, acquiring fault information of the aircraft; the acquisition source is an external ground measurement and control station; the fault information of the aircraft is a comprehensive character with all fault category information arranged in a non-sequence mode. Thousands of aircraft faults (including satellites and airships) in the past 10 years are counted, and fault systems comprise a remote measurement and control system, a power supply system, a power system and the like, so that comprehensive spacecraft fault information under the current technical condition is obtained.
Step three, performing fragmentation processing on the fault information of the aircraft according to the keyword retrieval catalog of the fault classification; the specific method for fragmenting the fault information of the aircraft comprises the following steps:
s1: carrying out fault classification on the fault information of the aircraft according to fault categories according to the keyword retrieval catalog of the fault classification;
s2: summarizing the fault information of the same fault type to form fault type fragments;
s3: and sequencing the fault category fragments according to the sequence of control system faults, remote control and communication system faults, power system faults, data management faults, thermal control system faults and payload faults.
Step four, establishing a fault label; the category and keyword of the fault label are consistent with the category and keyword in the keyword search directory of the fault classification.
Fifthly, correspondingly labeling the aircraft fault information subjected to fragmentation in the third step;
step six, establishing an aircraft fault standard library, and storing the aircraft fault information subjected to labeling processing in the aircraft fault standard library;
and seventhly, when the fault of the aircraft is needed to be analyzed and researched in a research room, searching and inquiring keywords from the aircraft fault standard library according to classes or keywords to obtain fault information. The faults of the spacecraft in orbit are counted and analyzed, the rule of the on-orbit faults can be found, and the spacecraft is guided to take preventive or corrective measures. On the basis of collecting on-orbit faults of the spacecraft, the article divides the classes of the faults and summarizes the fault occurrence trend.
And the data base can be further upgraded along with the expansion of the data base, so that the method is suitable for the fault type of a novel aircraft, the fault classification accuracy can be improved, and data support can be provided for the subsequent work such as rapid fault analysis and classification, product quality improvement and the like. By establishing an aircraft fault database, analyzing to obtain the causal knowledge of the fault influence, and performing statistical analysis on the parameter abnormality of the spacecraft in the future and the faults possibly caused by the abnormal phenomenon.
The multi-dimensional rapid classification label network structure for the faults of the spacecraft is designed, a rapid classification tool for the fault system of the spacecraft is refined and formed, and the fault conditions can be rapidly judged according to the researched database, scientific cause and effect knowledge and overall influence coefficient experience knowledge by inputting the fault conditions.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are not particularly limited to the specific examples described herein.
Claims (3)
1. A multi-dimensional rapid classification method for faults of a spacecraft is characterized by comprising the following steps: the method comprises the following steps:
step one, establishing a keyword retrieval catalog of fault classification;
step two, acquiring fault information of the aircraft;
step three, performing fragmentation processing on the fault information of the aircraft according to the keyword retrieval catalog of the fault classification;
step four, establishing a fault label;
fifthly, correspondingly labeling the aircraft fault information subjected to fragmentation in the third step;
step six, establishing an aircraft fault standard library, and storing the aircraft fault information subjected to labeling processing in the aircraft fault standard library;
step seven, when the aircraft fault is analyzed, keyword retrieval query is carried out from the aircraft fault standard library to obtain fault information;
in the first step, the fault categories in the fault classification keyword retrieval directory comprise control system faults, remote control and communication system faults, power system faults, data management faults, thermal control system faults and payload faults;
in the first step, keywords of the control system faults comprise attitude control faults, a control computer, rail control faults, a sensor, navigation and reaction wheels; the keywords of the fault of the telemetry and control system and the communication system comprise telemetry and control, GPS, a transponder and a communication link; the key words of the power system faults comprise a power supply regulator, a power supply and distribution device, a power supply charge and discharge device, a power supply controller, a storage battery pack, a power supply lower computer and a solar cell array; the key word of the power system fault is a power executing mechanism; the key words of the data management faults are a data management memory and a data processor; the keywords of the fault of the thermal control system are the thermal control outside the platform and the single machine thermal control; the key to the payload failure is the camera;
in the second step, the aircraft fault information is acquired from an external ground measurement and control station;
the specific method for fragmenting the fault information of the aircraft comprises the following steps:
s1: carrying out fault classification on the fault information of the aircraft according to fault categories according to the keyword retrieval catalog of the fault classification;
s2: collecting fault information of the same fault type to form fault type fragments;
s3: and sorting the fault category fragments according to the sequence of control system faults, remote control and communication system faults, power system faults, data management faults, thermal control system faults and payload faults.
2. The multi-dimensional rapid classification method of spacecraft faults according to claim 1, characterized in that: the fault information of the aircraft is a comprehensive character in which all fault category information is arranged in a non-sequence mode.
3. The multi-dimensional rapid classification method for the faults of the spacecraft according to claim 2, characterized in that: in the fourth step, the category and the keyword of the fault label are consistent with those in the keyword retrieval catalog of the fault classification.
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