A self-management method for satellites in orbit based on on-board log system
A technology of autonomous management and satellite control system, which is applied in the field of autonomous management of low-orbit satellite control subsystems, and can solve the problems of long time consumption and lack of ability to quickly assess satellite health status.
Active Publication Date: 2021-09-07
BEIJING INST OF CONTROL ENG
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[0009] Case 3: The ability to quickly assess the health status of satellites is lacking. For low-orbit satellites with a lap interval of less than 100 minutes, it takes a long time to identify the cause of failure from a large amount of telemetry information, and the emergency handling capabilities of satellites in orbit need to be improved urgently
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[0036] The principle of the invention is: adopting the standardization coding library of error codes of the control system, standardization of the known fault coding of the control system and the standardization processing method. The combination of static error log and dynamic reserved error code log is used to record the whole process information of fault occurrence. The log compression method is adopted to optimize the log storage space.
[0037] Such as figure 2 Shown, a kind of satellite on-orbit self-management method based on the on-board log system of the present invention comprises the following steps:
[0038] 1) Establish a satellite control system fault information error code coding library
[0039] Identify the faults that may occur during the on-orbit operation of the on-board control subsystem, perform detailed fault classification according to the corresponding software, hardware or on-board stand-alone, and obtain the fault information that completes the fa...
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A satellite on-orbit self-management method based on the on-board log system, which is applied to the monitoring and recording of low-orbit satellites' on-orbit fault status and key parameters. Including: 1) Carry out general standardized coding for satellite control subsystem failure error information, and establish a satellite control system error code standard library; 2) Open up a fixed memory area in the on-board control subsystem as a dynamic storage space for on-board logs; 3) The lossless compression algorithm based on Huffman coding is used to store the log files in lossless compression; the specific implementation is carried out according to the execution strategy of the on-orbit system. The method of the invention optimizes the self-management process of the low-orbit satellite on-orbit operation, can effectively monitor and record the on-orbit fault information, provides sufficient and intuitive record support for the development personnel to locate, analyze and process on-orbit fault events, and improves the accuracy of fault location. efficiency and accuracy.
Description
technical field [0001] The invention relates to a satellite on-orbit self-management method based on a space-borne log system, and belongs to the field of on-orbit self-management of a low-orbit satellite control subsystem. Background technique [0002] In recent years, the number of satellites in orbit has increased year by year, and the traditional "ground management, human analysis" satellite in-orbit management mode has certain limitations. However, in data management, event management, fault management, and on-orbit software maintenance, traditional satellite management methods play an irreplaceable role. [0003] It is of great significance to gradually realize the autonomous management of satellites in orbit, making it a useful supplement to traditional satellite management methods. The objectives of satellite on-orbit autonomous management are as follows: [0004] Self-management goal one: more complete records of on-orbit fault information. [0005] Case 1: A sat...
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IPC IPC(8): G05B23/02
CPCG05B23/0224G05B2219/24065
Inventor 李博文谌颖张晋张万利李艳
Owner BEIJING INST OF CONTROL ENG