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Evaluation Method of Queue Step Uniformity Based on Sound Signal

A technology of sound signal and evaluation method, applied in pattern recognition, instrumentation, calculation, etc. in the signal, can solve the problems of high difficulty, time cost, resource cost, etc., increase scientificity and interest, and avoid inaccurate evaluation results Effect

Inactive Publication Date: 2019-07-16
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The time cost and resource cost required for the development of the above two methods are relatively high and difficult

Method used

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  • Evaluation Method of Queue Step Uniformity Based on Sound Signal
  • Evaluation Method of Queue Step Uniformity Based on Sound Signal
  • Evaluation Method of Queue Step Uniformity Based on Sound Signal

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Experimental program
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Effect test

Embodiment Construction

[0051] Obviously, the sound of footsteps in a neat queue is also neat, concentrated, and rhythmic, and the time when the feet land and hang in the air can be clearly distinguished. For queues with relatively low orderliness, the sound of footsteps during the march is messy, scattered, and low in rhythm, and the time when the feet land is scattered and irregular. Therefore, through further analysis and comparison, the orderliness of the queue footsteps can be clearly distinguished.

[0052] This program will consist of the following steps: sound collection and noise reduction, step extraction and regularity analysis.

[0053] 1. Sound collection and noise reduction

[0054] The premise of analyzing the sound of queue footsteps is to obtain clear and pure footstep sound signals. First of all, from the perspective of hardware, a pickup with high directivity is used, and the placement angle and position of the pickup are scientifically selected according to the propagation chara...

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Abstract

The present invention analyzes and processes the sound signal of the footsteps of the parade queue, and provides a brand-new digital and automatic evaluation method for evaluating the uniformity of the parade queue by analyzing the footstep sound signal of the queue to obtain the orderliness of the queue steps. The technical scheme that the present invention adopts is, the method for evaluating the step uniformity of the queue based on the sound signal, the steps are as follows: 1) collection of sound and noise reduction 2) extraction of steps By extracting the step coordinates, it is determined that each step is in the sound signal 3) Step uniformity analysis By constructing the S-curve of the ideal standard neat step sound signal, it is correlated with the cumulative energy curve of the actual sound signal. The larger the correlation coefficient, the actual step signal and the standard neat step The closer the sound signals are, the more tidy the actual footstep signals are. The invention is mainly applied to analyzing and processing footstep sound signals.

Description

technical field [0001] The invention analyzes and processes the sound signal of the footsteps of the military parade queue to evaluate the uniformity of the steps of the military parade queue, thereby making corresponding judgments on the consistency of the queue actions. Make the standards and results of queue training and queue review more intuitive and scientific. Specifically, it involves an evaluation method for queue pace uniformity based on sound signals. Background technique [0002] Queue training, whether in military training in colleges or in army training, is an important way to exercise organizational discipline and hone the quality of will, and it is a team training method that is generally accepted in our country. The neatness of the queue pace is the concentrated expression of the queue training effect. At present, there is no scientific and effective way to evaluate the orderly pace of the queue. Especially for the evaluation of the effect of parade parad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06F2218/04G06F2218/08G06F2218/12
Inventor 赵毅强李杰辛睿山刘沈丰薛文佳
Owner TIANJIN UNIV
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