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Integrated single-axis self-calibrating inertial navigation control system

A control system and self-calibration technology, applied in the field of inertial navigation, to achieve high reliability, high installation accuracy, and small size

Active Publication Date: 2020-09-11
HUBEI SANJIANG AEROSPACE HONGFENG CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the dual-axis rotary inertial navigation system has two gimbals, it can be calibrated independently without the help of a turntable. There are obstacles in the dual-axis rotating inertial navigation system, and a new autonomous calibration method needs to be designed

Method used

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  • Integrated single-axis self-calibrating inertial navigation control system

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0026] figure 1 It is a front view of an integrated single-axis self-calibrating inertial navigation control system according to an embodiment of the present invention, figure 2 It is a rear view of an integrated single-axis self-calibrating inertial navigation control system according to an embodiment of the present invention, image 3 It is a schematic diagram of an integrated single-axis s...

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Abstract

The invention discloses an integrated single-axis self-calibration inertial navigation control system which comprises an inertial navigation controller (1) and a transposition mechanism (2), wherein the inertial navigation controller (1) comprises a body (3), a single-axis gyro (4), an IF module (6), an accelerometer set (7) and an adapter plate (8); the transposition mechanism (2) comprises a base (9), a locking combination (15), a locking motor (17), a gear (18), a locking turbine (19), a locking worm (20), a locking rod (21), a limiting end cover (22) and a locking housing (23). According to the control system, with the adoption of integrated design and reasonable optimization and layout, the inertial navigation controller and the transposition mechanism adopt the integrated design; the control system has the advantages that the control system is high in integration level, small in size, high in mounting accuracy, and high in reliability, and zero repeated positioning accuracy can be controlled within 0 DEG 0'19''.

Description

technical field [0001] Embodiments of the present invention belong to the technical field of inertial navigation, and more specifically, relate to an integrated single-axis self-calibration inertial navigation control system. Background technique [0002] The rotary modulation technology used in the rotary inertial navigation system can improve the long-duration navigation accuracy of the navigation system, but in actual system applications, the navigation accuracy is still affected by the accuracy of the inertial devices, and the inertial devices need to be calibrated before use. At present, most of the calibration of inertial measurement unit (IMU) is based on high-precision turntable, and the inertial navigation system needs to be dismantled and sent to the laboratory. Although this method can guarantee a certain accuracy, it has poor operability, high cost and repeatability. errors etc. In addition, the error of the inertial device is not fixed. As time goes by, the pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/18G01C25/00
CPCG01C21/18G01C25/005
Inventor 陈子玮王万雷穆善和潘思思李福瑞胡琪波王永辉
Owner HUBEI SANJIANG AEROSPACE HONGFENG CONTROL