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A dynamic accuracy testing system and method for a micro-attitude module

A dynamic accuracy and testing system technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of inability to process data out of synchronization between micro-attitude modules and turntables, low reliability of test results, and out-of-synchronization of data, so as to improve test efficiency, Increased reliability, dynamic accuracy Reliable and precise results

Active Publication Date: 2018-04-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

This test system and method have the following problems: the one is to collect the data of the turntable and the micro-attitude module respectively, which causes the two data to be out of sync; Low, poor reliability; third, in the calculation of the accuracy index, the installation error between the micro-attitude module and the turntable is not dealt with, which makes the reliability of the test results low

Method used

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  • A dynamic accuracy testing system and method for a micro-attitude module
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  • A dynamic accuracy testing system and method for a micro-attitude module

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Embodiment Construction

[0044] Such as figure 1 As shown, the dynamic accuracy test of the micro-attitude module in the prior art mainly collects the data of the micro-attitude module and the turntable providing the reference through a PC, and calculates the accuracy index at the same time. This method cannot guarantee the synchronization of the data of both parties, resulting in low accuracy and poor reliability of the dynamic precision test index of the micro-attitude module.

[0045] Such as figure 2 Shown, be the dynamic accuracy test system of miniature attitude module of the present invention, comprise:

[0046] A high-precision dual-axis turntable (1) realizes dynamic operation planning, provides position, speed, and swing dynamic benchmarks for the test system, and outputs dynamic parameters in a serial manner;

[0047]The micro-attitude module (2) is fixed on the high-precision two-axis turntable (1) by a fixture, and provides real-time acceleration, angular velocity and attitude informat...

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Abstract

The invention discloses a dynamic accuracy testing system and method of a micro-attitude module. Its main features are: in the dynamic test, a high-precision dual-axis turntable (1) in a dynamic environment is simultaneously collected through a data synchronous acquisition board (3) and the data of the micro-attitude module (2), and the rough synchronization of the data of both parties is completed inside the data synchronization acquisition board, and at the same time, the data of the high-precision dual-axis turntable (1) and the micro-attitude module (2) are packaged and sent to the PC data processing module (4); the PC data processing module (4) performs precise synchronization of the data of both parties, and simultaneously calculates the dynamic accuracy index of the micro-attitude module (2). The precision test system and its method propose a secondary synchronization method for data, which overcomes the phenomenon that the data of the turntable and the micro-attitude module are not synchronized in the test system and method of the prior art, and ensures the data of the high-precision dual-axis turntable and the micro-attitude module Synchronization and consistency, improve the accuracy and reliability of the test system.

Description

technical field [0001] The invention belongs to the technical field of aircraft attitude system performance testing, and in particular relates to a dynamic accuracy testing system of a miniature attitude module and a method thereof. Background technique [0002] With the overall development of microelectronic system technology, miniaturized, low-cost and low-power micro-attitude modules have become a development trend in the field of navigation. In the field of aircraft technology, the micro-attitude module is usually used as a navigation measurement system. Its basic function is to realize the direct measurement of information such as angular velocity and specific force and obtain the attitude of the aircraft such as pitch angle and roll angle. Finally, the sensor data and calculation The results are sent externally for gesture control or display of the carrier. The output pose accuracy of the micro pose module is the most important part of its performance. The attitude a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 孔超李荣冰孙永荣刘建业常健刘浩周彬
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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