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Method for quickly detecting failure of dual-redundancy inertial navigation system

An inertial navigation system and fault detection technology, applied in the field of inertial navigation, can solve problems such as difficult to locate faulty devices and low detection efficiency

Active Publication Date: 2013-12-25
BEIJING AUTOMATION CONTROL EQUIP INST
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Problems solved by technology

[0006] The technical problem to be solved in the present invention is: the detection efficiency of the double redundant inertial navigation system fault detection method in the prior art is low, and it is difficult to locate the specific faulty device

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  • Method for quickly detecting failure of dual-redundancy inertial navigation system
  • Method for quickly detecting failure of dual-redundancy inertial navigation system
  • Method for quickly detecting failure of dual-redundancy inertial navigation system

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Embodiment Construction

[0100] The rapid fault detection method of the dual redundant inertial navigation system of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0101] The double redundant inertial navigation system fast fault detection method of the present invention comprises the following steps: first, in the inertial measurement component preprocessing software of two sets of inertial navigation systems, the bottom fault is detected; after that, in the navigation of two sets of inertial navigation systems The navigation results are detected in the software; finally, typical faults such as jump count and slow drift are detected by comparing the angular velocity and acceleration of the two sets of inertial navigation systems in the interface control software.

[0102] Step 1. Low-level INS fault detection

[0103] Carry out IMU inertial measurement component failure detection in the preprocessing software of the two sets of...

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Abstract

The invention belongs to the field of inertia navigation techniques, and particularly relates to a method for quickly detecting a failure of a dual-redundancy inertial navigation system. The method disclosed by the invention comprises the following steps of detecting a bottom layer inertia navigation failure; detecting a failure in navigation software; and detecting a failure in interface control software. According to the method provided by the invention, the technical problems of low detection efficiency and difficulty in location of a specific fault device in the method for quickly detecting the failure of the dual redundancy inertial navigation system in the prior art are solved, inertia elements and key signals of two sets of inertial navigation systems in a local datum can be detected in real time, the detection efficiency is high, the fault elements can be accurately located, and the guarantee is provided for normal work of the local datum.

Description

technical field [0001] The invention belongs to the technical field of inertial navigation, and in particular relates to a fast fault detection method for a dual redundant inertial navigation system. Background technique [0002] In the modern aerospace industry, the reliability of the navigation and guidance system is the "short board" of the reliability of the weapon system. How to improve the reliability of the inertial navigation system has always been a difficult problem in the application of weapon system engineering. [0003] The following two methods are usually used to improve the reliability of the inertial navigation system: one is to improve the reliability of the accelerometer and gyroscope, the key components of the system; the other is to adopt a redundant design and build a high-reliability system by adding redundant sensors. Among the above two methods, improving the reliability of a single accelerometer and gyroscope is the most fundamental method, but due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
Inventor 王根周章华朱红徐海刚赵春雨姜述明
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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