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Monitoring Method of Sensor Operation Status of Three-DOF Helicopter System

A technology of operating status and system status, applied in the direction of instruments, etc., can solve the problem of real-time and accurate monitoring of the working status of system sensors

Active Publication Date: 2021-06-22
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] As a random jumping system, the three-degree-of-freedom helicopter system currently has no good method for real-time and accurate monitoring of the working status of the system sensors.

Method used

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  • Monitoring Method of Sensor Operation Status of Three-DOF Helicopter System
  • Monitoring Method of Sensor Operation Status of Three-DOF Helicopter System
  • Monitoring Method of Sensor Operation Status of Three-DOF Helicopter System

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Embodiment

[0058] The embodiment of the present invention discloses a three-degree-degree of helicopter system sensor operating state monitoring method for use in three-degree-freedom helicopter system monitoring, reference figure 2 As shown, the method includes the following steps.

[0059] The estimate of the measurement noise covariance matrix of the sensor in the three-degree of helicopter system is calculated;

[0060] Analyze the measurement noise covariance matrix estimate of the sensor, determine whether the operating state of the sensor is normal: If the measurement noise covariance matrix estimate of the sensor deviates from the nominal value range of the sensor, it is judged The operating state of the sensor is abnormal; if the measurement noise covariance of the sensor is included in the nominal value range of the sensor, it is determined that the operating state of the sensor is normal.

[0061] Specifically, the method of calculating the measurement noise covariance matrix of t...

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Abstract

The invention discloses a method for monitoring the operating state of a three-degree-of-freedom helicopter system sensor, which comprises the following steps: calculating the estimated value of the measurement noise covariance matrix of the sensor; analyzing the estimated value of the measurement noise covariance matrix of the sensor, and judging the Whether the operating state of the sensor is normal: if the estimated value of the measurement noise covariance matrix of the sensor deviates from the nominal value range of the sensor, it is judged that the operating state of the sensor is abnormal; if the measurement noise covariance of the sensor The estimated value of the matrix is ​​included in the nominal value range of the sensor, and it is judged that the operating state of the sensor is normal. The sensor operating state monitoring method of the three-degree-of-freedom helicopter system of the present invention monitors the operating state of the sensor in real time by accurately estimating the measurement noise covariance matrix, so as to ensure safe and stable operation of the system.

Description

Technical field [0001] The present invention relates to a sensor operating state monitoring method, and more particularly to a three-degree-degree of helicopter system sensor operating state monitoring method. Background technique [0002] In an industrial environment full of uncertain, due to aging and external random interference, sensor measurement data usually brings certain errors. In order to solve this problem, the usual practice is to introduce a disturbance variable ν in the system measurement equation, which represents the measurement noise that the sensor may encounter. Moreover, the disturbance variable ν is usually assumed to be a Gaussian distribution of the obedience to the zero difference of R, wherein the variance R can describe the uncertainty of the measured value. In addition, the intensity of measuring noise ν may vary over time due to many external and internal factors, especially under harsh industrial conditions, such that the measurement noise covariance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 赵顺毅李可刘飞
Owner JIANGNAN UNIV