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Heart rate change-based vehicle sound quality evaluation method

An evaluation method and technology of heart rate change, applied in vehicle testing, pulse rate/heart rate measurement, machine/structural component testing, etc., can solve problems such as unreasonable and inaccurate data, achieve simple operation and overcome inaccurate data , the effect of strong practicability

Active Publication Date: 2019-09-03
SHANDONG UNIV OF TECH
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Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a method for evaluating vehicle sound quality based on heart rate changes, which is simple to operate, and the price of the instrument is relatively cheap. Inaccurate and unreasonable shortcomings, strong acceptability and practicability

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  • Heart rate change-based vehicle sound quality evaluation method

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Embodiment 1

[0041] Such as Figure 1-2 As shown, the vehicle sound quality evaluation method based on heart rate variation of the present invention comprises the following steps:

[0042] Step 1. Select a vehicle sound quality evaluator;

[0043] Step 2. Fix the HMS III artificial head produced by HEAD acoustics at the driver's position under the working conditions of the motor vehicle to be evaluated, and use the SQLabII multi-channel test system to collect audio data A 0 As a sample to be evaluated;

[0044] Step 3. The evaluator sits on the vehicle seat, wears an open high-impedance (100Ω-300Ω) HA III high-fidelity headset, and plays back the collected in-vehicle audio data A 0 , use the Likang fast ECG detector to collect the heart rate data L of the evaluator within the test time t 1 , record the average period T 1 , heart rate R peak mean H 1 , Likang fast ECG detector is connected to the PC terminal;

[0045] Step 4. The evaluator sits on the vehicle seat, wears an open-type ...

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Abstract

The invention belongs to the technical field of vehicle test, and particularly relates to a heart rate change-based vehicle sound quality evaluation method. The method comprises steps: 1, a vehicle sound quality evaluator is selected; 2, in-vehicle audio data of a to-be-evaluated vehicle under a to-be-evaluated working condition are collected as to-be-evaluated samples; 3, the heart rate data L1 of the evaluator when the in-vehicle audio data A0 are played back are collected, and an average period T1 and a heart rate R peak mean value H1 are recorded; 4, the heart rate data L2 of the evaluatorwhen the in-vehicle audio data A0 are not played back are collected, and an average period T2 and a heart rate R peak mean value H2 are recorded; and 5, the weight omega1 of the average period and the weight omega2 of the heart rate R peak mean value are calculated, and a vehicle sound quality quantitative index is further acquired to judge the vehicle sound quality. The operation is simple, theused instrument is cheap, the shortcomings of inaccurate and unreasonable data caused by the evaluator in the subjective evaluation due to the personal emotion are overcome, and the acceptability andthe practicality are strong.

Description

technical field [0001] The invention belongs to the technical field of automobile testing, in particular to a method for evaluating vehicle sound quality based on heart rate variation. Background technique [0002] At present, the evaluation methods of vehicle sound quality can be divided into subjective evaluation and objective evaluation. Subjective evaluation is based on people as the main body, and the evaluation is carried out in the form of questionnaire survey or subjective evaluation test by the jury. The objective evaluation is based on the physical parameters of the sound and the objective parameters of psychology, and evaluates the quality of the sound by testing and analyzing the objective parameters of the sound such as loudness, sharpness, roughness, and volatility. [0003] However, the subjective evaluation method mainly evaluates the sound quality of vehicles based on questionnaires, paired comparisons, and rankings. Due to the limitations of the evaluation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G01M17/007A61B5/024G10L25/66G10L25/51
CPCA61B5/024G01H17/00G01M17/007G10L25/51G10L25/66
Inventor 徐艺孙烨辉桑晓青马晓田谭德荣郭栋王玉琼
Owner SHANDONG UNIV OF TECH
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