Odometer data processing method of position attitude measurement system

Abstract

The invention provides an odometer data processing method of a position attitude measurement system. The method comprises the steps of: S1, reading odometer data at the initial time, and determining astart point; S2, judging whether testing is started or not, if testing is started, turning to the step S3, and otherwise, continuously executing the step S2; S3, judging a stop point; S4, judging whether the stop point in the step S3 is a return point or a break point, if the stop point in the step S3 is the return point, turning to the step S5, and if the stop point in the step S3 is the break point, turning to the step S3; S5, performing mileage equal-spaced sampling processing; S6, retreating the position attitude measurement system to the start point in the step S1 from the return point;and S7, judging whether the measurement time is greater than or equal to the predetermined time or not, if so, evaluating the repeatability of various measurement parameters, and otherwise, turning tothe step S2. By means of the odometer data processing method of the position attitude measurement system in the invention, accurate judgement on all kinds of states of the position attitude measurement system and rapid and automatic processing on measurement results for many times can be realized; and the data post-processing efficiency can be increased.

Description

technical field [0001] The invention relates to the technical field of detection of geometric parameters of rail transit lines, in particular to a method for processing odometer data of a position and posture measurement system. Background technique [0002] In order to ensure the operation safety of rail transit, in recent years, rail precision inspection technology represented by rail inspection system has developed rapidly. overloaded requirements. The portable track inspection system has many advantages such as high measurement accuracy, simple operation, flexible use, and low cost. It has been widely used in daily maintenance of railway tracks and guiding construction. [0003] The traditional portable track detection system adopts the "absolute measurement method" based on the optical principle, which has high measurement accuracy and no divergence of errors. However, there are operation links such as total station setup, which are complicated to operate and low in ef...

AI Technical Summary

Problems solved by technology

For multiple measurements on the same line section, the existing data processing methods mainly use manual interception. Although the accurate alignment of each measurement data can be achieved, the efficiency is relatively low, and an efficient and fast data processing method is urgently needed

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