An interactive method between the lower computer and the upper computer of a two-axis laser strapdown inertial unit

Abstract

The invention discloses an interactive method of a lower computer and an upper computer in a biaxial laser strapdown inertial unit. The interactive method comprises the following steps: data collection step: when a data interface has data, copying, by the upper computer, the data in a receiving buffer area; data processing step: copying the data in a processing buffer area, processing the data, placing the data in a log buffer area, and writing the data in a file; parameter reading step: sending, by the upper computer, a parameter reading instruction to the lower computer, and sending, by theupper computer, a next parameter reading instruction after reading parameters; and parameter writing step: sending, by the upper computer, a parameter writing instruction to the lower computer, reading, by the upper computer, the written parameters in batches and comparing the parameters after all parameters are written in the lower computer. By adoption of the interactive method disclosed by theinvention, the problem of data loss during the collection via a big data serial port can be effectively solved, and thus high-frequency data collection is achieved; and the interactive method disclosed by the invention can not only achieve high-speed and accurate reading of the parameter, but also can ensure complete correctness of parameter writing.

Description

technical field [0001] The present invention relates to the technical field of dual-axis laser strapdown inertial groups, and more specifically, the present invention relates to an interaction method between a lower computer and an upper computer of a dual-axis laser strapdown inertial group. Background technique [0002] At present, there are many internal and external data interfaces of the dual-axis laser SIM. In the research and development stage, testing stage and maintenance stage, due to technical limitations of conventional solutions, the interaction mode between the upper computer and the lower computer is unreasonable, and there is often a loss when collecting data from the lower computer of the two-axis laser strapdown inertial unit. The data collected is inaccurate and incomplete; not only that, the conventional scheme cannot take into account the accuracy and speed of parameter reading and writing when the upper computer reads and writes parameters to the lower ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of data loss when the upper computer collects data from the lower computer of the two-axis laser strapdown inertial unit in the prior art, and the problem that the accuracy and speed of parameter reading and writing cannot be taken into account, this invention innovatively proposes a two-axis laser strapdown The interaction method between the lower computer and the upper computer of the joint inertial group, combined with multiple buffering technology and multi-thread processing technology, effectively solves the above technical problems

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