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Evaluation method of vehicle sound quality based on heart rate variation

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, inaccurate data, etc. Practical effect

Active Publication Date: 2021-10-29
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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  • Evaluation method of vehicle sound quality based on heart rate variation
  • Evaluation method of vehicle sound quality based on heart rate variation
  • Evaluation method of vehicle sound quality based on heart rate variation

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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 automobile testing, and in particular relates to a method for evaluating vehicle sound quality based on heart rate changes, including: 1. Selecting a vehicle sound quality evaluator; 2. Collecting the in-car audio of the vehicle to be evaluated under working conditions The data is used as a sample to be evaluated; 3. Collect and play back audio data A in the car 0 Time evaluator heart rate data L 1 , record average period T 1 , heart rate R peak average H 1 ; 4. Acquisition and playback of in-car audio data A 0 The evaluator's heart rate data L 2 ;Record average period T 2 , heart rate R peak average H 2 ; 5. Calculate the weight ω of the average period 1 and the weight ω of the peak-mean value of the heart rate R 2 , and then obtain the vehicle sound quality quantitative index to judge the vehicle sound quality. The invention has simple operation, relatively cheap instrument price, overcomes the shortcomings of inaccurate and unreasonable data caused by evaluators with personal emotions in subjective evaluation, and has strong acceptability and practicability.

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...

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Application Information

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Patent Type & Authority Patents(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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