Testing system and method for dynamic precision of micro attitude module

Abstract

The invention discloses a testing system and method for dynamic precision of a micro attitude module. The testing system and method has the following main characteristics: data of a high-precision double-shaft rotary table (1) and the micro attitude module (2) in a dynamic environment are simultaneously acquired by using a data synchronous acquisition plate (3), coarse synchronization of the data of both the high-precision double-shaft rotary table (1) and the micro attitude module (2) is accomplished in the data synchronous acquisition plate (3), and the data of both the high-precision double-shaft rotary table (1) and the micro attitude module (2) is packaged and sent to a PC data processing module (4); and the PC data processing module (4) carries out fine synchronization on the data of both the high-precision double-shaft rotary table (1) and the micro attitude module (2) and calculates the dynamic precision index of the micro attitude module (2). The testing system and method provided by the invention adopt the manner of two-step data synchronization, overcome the problem of unsynchronization of the data of the rotary table and the micro attitude module in the prior art, guarantee synchronism and consistency of the data of the high-precision double-shaft rotary table and the micro attitude module and have improved accuracy and reliability.

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 ...

AI Technical Summary

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

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