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A method for processing odometer data in a position and attitude measurement system

A measurement system and data processing technology, applied in the directions of measuring distance, measuring device, surveying and navigation, etc., can solve problems such as low efficiency, and achieve the effect of improving data processing efficiency and facilitating repeated calculation.

Active Publication Date: 2021-07-13
BEIJING AUTOMATION CONTROL EQUIP INST
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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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  • A method for processing odometer data in a position and attitude measurement system

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] The odometer of the present invention is installed on the wheel of the position and attitude measurement system, and the mileage of the position and attitude measurement system is calculated by measuring the wheel speed, which can accurately reflect the start-up test, halfway rest, and return o...

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Abstract

The invention provides a method for processing odometer data of a position and attitude measurement system, the method comprising: step S1, reading the odometer data at the initial time, and determining the starting point; step S2, judging whether to start the test, if starting the test, go to step S3, otherwise continue to execute step S2; step S3, judge the parking point; step S4, judge whether the parking point in step S3 is a turning point or a rest point in the middle, if it is a turning point, go to step S5, if it is a rest point in the middle, turn to Go to step S3; step S5, carry out mileage interval sampling processing; step S6, the position and attitude measurement system retreats from the turning point to the starting point in step S1; step S7, judge whether the measurement bar is greater than or equal to the predetermined number of times, if yes, Evaluate the repeatability of each measurement parameter, otherwise go to step S2. The invention can realize the accurate judgment of various states of the position and attitude measurement system and the rapid and automatic processing of multiple measurement results, and improves the post-processing efficiency of data.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00G01C22/00
CPCG01C22/00G01C25/00G01C25/005
Inventor 邓继权郭玉胜王海军艾瀛涛
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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