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Remote measurement data interpretation system based on K-means

A telemetry data and database technology, applied to instruments, character and pattern recognition, computer components, etc., to achieve the effect of easy model maintenance, high real-time performance, and small amount of calculation

Active Publication Date: 2016-03-30
AEROSPACE DONGFANGHONG SATELLITE
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AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: in order to realize the rapid test of the satellite and prevent the hidden dangers of misjudgment and missed judgment in the artificial interpretation during the test process, the present invention proposes an improved K-means-based telemetry data interpretation system to realize satellite Uninterrupted monitoring of telemetry parameters and interpretation of feedback from satellite onboarding commands

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Embodiment Construction

[0024] According to the analysis of the characteristics and laws of satellite telemetry data, the telemetry parameters are classified first. A K-means-based telemetry data interpretation system can interpret data mainly including the following four categories:

[0025] (1) The telemetry parameter is a state quantity, and the state quantity value can be enumerated;

[0026] (2) The telemetry parameter is an analog quantity, the value is kept constant, the data changes smoothly and the range of change is small;

[0027] (3) The telemetry parameter is an analog quantity, and the value maintains a constant value for a certain parameter or the rate of change of time, and changes smoothly and within a small range.

[0028] (4) The telemetry parameter is an analog quantity, and the rate of change of the value to a certain parameter or time is a curve.

[0029] After classifying satellite telemetry parameters, analyze the influencing factors of parameter variation, including the fol...

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Abstract

The invention discloses a remote measurement data interpretation system based on K-means, and the method comprises the steps: classifying change rules of parameters into four classes through sorting the characteristics of remote measurement parameters of a small satellite; setting the number of K-means models needed by the remote measurement parameters of the small satellite, a processing mode of the remote measurement data and a parameter mode according to the mapping tables between the change rules of the remote measurement parameters and related instructions or states; training a K-means mode parameter corresponding to the remote measurement parameters through employing normal data, and packaging the K-means models which complete the training into a set; enabling the system to obtain real-time measurement data of the satellite and a remote control instruction from a main testing computer and a database after the modeling is completed; carrying out interpretation through the models corresponding to the remote measurement parameters, and giving out an abnormal point and an early-warning point of the parameters; enabling a tester to carrying out the confirmation of interpretation results according to the abnormal point and early-warning point given by the models, inputting a leaked point appearing in an operation process of the satellite into the models, and achieving the dynamic correction of the models.

Description

technical field [0001] The invention relates to the interpretation of ground telemetry data in satellite testing, in particular to an improved K-means-based satellite telemetry data interpretation system. Background technique [0002] At present, in the comprehensive test process of the small satellite factory, the testers need to interpret the satellite uplink instructions and downlink telemetry data according to the interpretation standards, give the working status of each satellite unit and equipment, and provide timely feedback on possible abnormalities of the satellite. Make a prediction. However, the amount of satellite telemetry data is huge and changes rapidly, the above-mentioned instructions cover a wide range of areas, and the satellite's working mode is complex. The usual manual interpretation is difficult to meet the rapid testing of satellites, especially for the batch testing of micro-satellites. [0003] "A Satellite Telemetry Data Interpretation System Base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06F18/23213G06F18/24
Inventor 韩立明曾鸿任光杰梁军民遇言
Owner AEROSPACE DONGFANGHONG SATELLITE
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